Samson Thermostat 5100 User Guide

Automation System TROVIS 5100  
District Heating Controller  
TROVIS 5179  
Mounting and  
Operating Instructions  
EB 5179 EN  
Firmware version 1.2x  
Edition August 2005  
®
Electronics from SAMSON  
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Contents  
Contents  
EB 5179 EN  
3
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Contents  
4
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Contents  
EB 5179 EN  
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Operation  
1
Operation  
The controller is ready for use with the temperatures and operating schedules preset by the  
manufacturer.  
On start-up, the current time and date need to be set at the controller (–> section 1.5).  
1.1 Operating elements  
The operating controls are located in the front panel of the controller and protected by a Plexi-  
glas door.  
1.1.1 Operating keys  
Changeover key  
Press to switch between operating level and configuration/parameter level  
Reset key  
Press to reset accessible parameters to their default settings; the controller  
must be in the parameter level  
Arrow keys  
– To scroll within levels  
– To change values  
Enter key  
– To access levels  
– Access parameters and functions to edit them  
– Confirm settings  
– Display set points in info level  
6
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Operation  
1.1.2 Operating switches  
Heating circuit mode selector switch  
Automatic mode with switchover between  
rated operation and reduced operation  
Rated operation  
Reduced operation  
Manual operation: Control valve opens - stationary - closes  
(for on/off control: + ON, 0 OFF)  
DHW circuit mode selector switch  
The operating mode icon stickers are included in the scope of delivery and can be stuck on  
the front above the mode selector switch for control circuit 2 (middle), if required.  
Automatic mode  
Rated operation  
DHW heating OFF  
Manual operation: Control valve opens - stationary - closes  
(for on/off control: + ON, 0 OFF)  
Note!  
In manual mode, frost protection is not guaranteed.  
EB 5179 EN  
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Operation  
The assignment of the control circuits to the mode selector switches depends on the system  
code number (Anl):  
Mode selector switch  
Middle  
System  
(Anl)  
Top  
Bottom  
1
2
3
Heating circuit 1  
Heating circuit 1  
Heating circuit 1  
Heating circuit 2  
DHW heating  
Pre-control circuit  
Heating circuit 2  
Heating circuit 2  
Heating circuit 3/Pre-control  
circuit  
4
5
Heating circuit 1  
Heating circuit 1  
DHW heating  
DHW heating  
Pre-control circuit  
Heating circuit 2/Pre-control  
circuit  
6
7
8
Heating circuit 1  
Heating circuit 1  
Heating circuit 1  
Heating circuit 2  
DHW heating  
DHW heating  
Heating circuit 3  
Pre-control circuit  
Heating circuit 2/Pre-control  
circuit  
9
Heating circuit 1  
Heating circuit 1  
DHW heating  
DHW heating  
Heating circuit 2  
Heating circuit 2  
10  
1.2 Operating modes  
Day mode (rated operation)  
Regardless of the programmed times-of-use and summer mode, the set points relevant for rated  
operation are used by the controller.  
Night mode (reduced operation)  
Regardless of the programmed times-of-use, the set points relevant for reduced operation are  
used by the controller.  
Automatic mode  
During the programmed times-of-use, the controller works in rated operation. Outside these  
times-of-use, the controller is in reduced operation, unless control operation is deactivated de-  
pending on the outdoor temperature. The controller switches automatically between both oper-  
ating modes.  
Manual operation+ 0 –  
Valves and pumps can be controlled manually.  
8
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Operation  
1.3 Display  
During operation, the display indicates the current time as well as information about the opera-  
tion of the controller. The times-of-use are represented by black squares below the row of num-  
bers at the top of the display. Icons indicate the operating status of the controller.  
The controller status can be displayed in the operating level (InF level) (–> section 1.4).  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19  
0
21 22 23 24  
1
2
16  
3
4
5
6
7
1
4
5
2
1
8
9
10 11 12  
13 14 15  
1
2
Automatic operation  
Day mode  
(rated operation)  
Night mode  
8
9
Circulation pump RK1–3  
Valve RK1–3 or  
Primary valve: OPEN or  
DHW: OPEN  
12 DHW storage tank  
13 Circulation pump ZP  
14 DHW demand  
15 Exchanger charging pump  
TLP  
3
(reduced operation)  
10 Valve RK1–3 or  
Primary valve: CLOSED  
or DHW: CLOSED  
11 Storage tank charging  
pump SLP  
4
5
6
7
Vacation mode  
Public holiday mode  
Frost protection  
Malfunction  
16 Time-of-use  
Fig. 1 · Icons  
EB 5179 EN  
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Operation  
1.4 Displaying data  
Measured values, set points, times-of-use, public holidays and vacation periods can be re-  
trieved and displayed in the InF1 to InF9 information levels. The various displays are listed in  
section 11.4.  
Heating circuit 1  
4 InF1:  
4 InF2:  
4 InF3:  
4 InF4:  
4 InF5:  
4 InF6:  
4 InF7:  
4 InF8:  
4 InF9:  
4 PU:  
Heating circuit 2  
Heating circuit 3  
DHW heating  
Primary control circuit  
Does not exist  
LON communication  
Error status register/sensor failure  
Communication  
Pumps, manual level  
4 bIn-E: Binary inputs and outputs  
4 Error: Alarms  
Proceed as follows:  
Select information level (–> Fig. 10 on page 141).  
Confirm information level.  
Select value you want to change.  
Compare the set point/limit value and the actual value.  
Press keys simultaneously:  
to switch to the operating level.  
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Operation  
1.5 Setting the controller time  
The current time and date need to be set immediately after start-up and after a power failure  
lasting longer than 24 hours.  
Proceed as follows:  
0
0
0
0
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Switch to configuration and parameter level.  
Display: PA1  
Select PA5 parameter level.  
Open PA5 parameter level.  
Display: Controller time  
Activate editing mode for the controller time  
blinks.  
Change controller time.  
Confirm controller time.  
Display: Date (day.month)  
Activate editing mode for the controller date.  
Change date setting.  
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Operation  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Confirm date.  
Display: Year.  
Activate editing mode for the controller year.  
Change year setting.  
Confirm year.  
Exit PA5 parameter level.  
Return to the operating level.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
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Operation  
1.6 Setting the times-of-use  
Two times-of-use can be set for each day of the week. If just one time-of-use is required, the start  
and stop times of the second time-of-use must be programmed to identical times. The time  
schedules for the three heating circuits, DHW heating and the circulation pump can be read  
over Modbus. Pump circuits are treated as mixer circuits.  
Time schedule  
Parameter level  
PA1 to PA3  
PA4  
Icon  
Heating circuit 1 to 3  
DHW heating  
Circulation pump  
PA4  
Parameters  
WE*  
1–7  
Range of values  
Period/day  
1–7, 1, 2, 3, 4, 5, 6, 7 with 1–7 = every day,  
1 = Monday, 2 = Tuesday, ..., 7 = Sunday  
Start first time-of-use  
Stop first time-of-use  
Start second time-of-use  
Stop second time-of-use  
07:00 0:00 to 24:00h; in steps of 30 minutes  
12:00 0:00 to 24:00h; in steps of 30 minutes  
12:00 0:00 to 24:00h; in steps of 30 minutes  
22:00 0:00 to 24:00h; in steps of 30 minutes  
* Default settings (WE) valid for heating circuits 1 to 3  
Proceed as follows:  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Switch to configuration and parameter level.  
Display: PA1  
Select parameter level.  
Open parameter level.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Select datapoint for times-of-use.  
EB 5179 EN 13  
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Operation  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Activate editing mode for times-of-use.  
Display: 1–7  
Select period/day for which the times-of-use are to  
be valid:  
1–7 = every day,  
1 = Monday, 2 = Tuesday, ..., 7 = Sunday  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Activate editing mode for period/day.  
Display shows: START;  
blinks  
Edit start time (steps of 30 minutes).  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Confirm start time. Display shows: STOP  
Edit stop time (steps of 30 minutes).  
STOP  
Confirm stop time.  
Display shows: START  
The second time-of-use is set like the first time-of-use.  
To set the times-of-use for each day, repeat the instructions in the fields highlighted in gray.  
Select End on the display.  
Exit the datapoint for times-of-use.  
Exit the parameter level.  
Return to the operating level.  
Note!  
Do not use the 1–7 datapoints to check the programmed times-of-use. Otherwise, the  
times-of-use are reset to their default settings.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
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Operation  
1.6.1 Copying the times-of-use  
The times-of-use of heating circuit 1 (2) can be copied and used for heating circuit 2 (3).  
Copy function  
Parameter level  
Icon  
HK1 –> HK2  
HK2 –> HK3  
PA1  
PA2  
COPY2  
COPY3  
Proceed as follows:  
Switch to configuration and parameter level.  
Display: PA1  
Select parameter level.  
Open parameter level.  
Select “COPY_“ data point.  
Open copy program.  
The display blinks.  
Copy the times-of-use.  
Select End on the display.  
Exit the parameter level.  
Return to the operating level.  
EB 5179 EN 15  
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Operation  
1.6.2 Entering public holidays  
On public holidays, the times-of-use specified for Sunday apply. A maximum of 20 public holi-  
days may be entered.  
Parameters  
WE  
Level / Range of values  
PA1 / 01.01 to 31.12  
PA2 / 01.01 to 31.12  
PA3 / 01.01 to 31.12  
Public holidays f. heating circuit 1  
Public holidays f. heating circuit 2  
Public holidays f. heating circuit 3  
Note!  
The programmed public holidays and vacations of any heating circuit (HK1, HK2 or HK3) ap-  
ply with the setting Co4 -> Fb12 = ON , select 1, 2 or 3 also for the DHW heating.  
Proceed as follows:  
Switch to configuration and parameter level.  
Display: PA1  
Select parameter level.  
Open parameter level.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Select datapoint for public holidays.  
Display shows:  
Open data point for public holidays.  
If applicable, select – – – –.  
Activate editing mode for public holiday.  
blinks.  
Edit public holiday  
Confirm public holiday.  
To enter additional public holidays, re-select – – – – (between 31.12 and 01.01) and repeat the  
steps in the fields highlighted in gray.  
Exit the parameter level.  
Return to the operating level.  
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Operation  
Note!  
Public holidays that are not assigned to a specific date should be deleted by the end of the year  
so that they are not carried on into the following year.  
Deleting a public holiday:  
Select the holiday you wish to delete in the datapoint for public holidays.  
Confirm selection.  
Select – – – – .  
Delete the public holiday.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
EB 5179 EN 17  
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Operation  
1.6.3 Entering vacation periods  
During vacation periods, the controller constantly remains in the reduced operating mode. The  
system is monitored for frost. A maximum of 10 vacation periods can be entered.  
Parameters  
WE  
Level / Range of values  
PA1 / 01.01 to 31.12  
PA2 / 01.01 to 31.12  
PA3 / 01.01 to 31.12  
Vacation period for heating circuit 1  
Vacation period for heating circuit 2  
Vacation period for heating circuit 3  
Note!  
The programmed public holidays and vacations of any heating circuit (HK1, HK2 or HK3) ap-  
ply with the setting Co4 -> Fb12 = ON , select 1, 2 or 3 also for the DHW heating.  
Proceed as follows:  
Switch to configuration and parameter level.  
Display: PA1  
Select parameter level.  
Open parameter level.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Select datapoint for vacation periods.  
Display shows:  
Open datapoint for vacation periods.  
Display shows: START  
If applicable, select – – – –.  
Activate editing mode for vacation periods.  
blinks.  
Set start date of vacation period.  
Confirm start date of the vacation period.  
Display shows: STOP  
Set end of vacation period.  
Confirm end of the vacation period.  
To enter additional vacation periods, re-select – – – – (between 31.12 and 01.01) and repeat  
the steps in the fields highlighted in gray.  
Exit the parameter level.  
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Operation  
Return to the operating level.  
Note!  
Vacation periods that are not assigned to a specific date should be deleted by the end of the  
year so that they are not carried on into the following year.  
Deleting vacation periods:  
Select the vacation period you wish to delete in the datapoint for vacation periods.  
Confirm selection.  
Select – – – – .  
Delete vacation period.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
EB 5179 EN 19  
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Start-up  
2
Start-up  
2.1 Setting the system code number  
10 different hydraulic schematics are available. Each system configuration is represented by a  
system code number. The different schematics are dealt with in section 4. Available controller  
functions are described in sections 5, 6 and 7.  
Changing the system code number resets previously adjusted function blocks to their default set-  
tings (WE).  
The system code number is set in the configuration level.  
Proceed as follows:  
Switch to configuration and parameter level.  
Display shows: PA1  
Select Anl_ on the display.  
Activate editing mode for the system code number.  
Anl blinks on the display.  
Edit system code number.  
Confirm system code number.  
Display shows: Co1  
Return to the operating level.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
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Start-up  
2.2 Activating and deactivating functions  
A function is activated or deactivated in the associated function block. The numbers 0 to 24 in  
the top row of the display represent the respective function block numbers. When a configura-  
tion level is opened, the activated function blocks are indicated by a black square on the  
right-hand side below the function block number. For more details on function blocks, refer to  
section 12.1.  
The functions are grouped by topics:  
4 Co1: Heating circuit 1  
4 Co2: Heating circuit 2  
4 Co3: Heating circuit 3  
4 Co4: DHW heating  
4 Co5: System-wide functions  
4 Co6: Sensor initialization  
4 Co7: LON communication  
4 Co8: Error initialization  
4 Co9: Communication  
Proceed as follows:  
Switch to configuration and parameter level.  
Display shows: PA1  
Select configuration level.  
Open configuration level.  
Select function block.  
Activate editing mode for the function block.  
Fb_ blinks on the display.  
If 0 0 0 0 appears on the display, the key number needs to be entered first. Refer to  
section 2.3.1  
Activate the function block (Fb = ON).  
An activated function block is indicated by a black square below (right) the function  
block number in the top row of the controller display.  
or:  
Deactivate the function block (Fb = OFF).  
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Start-up  
Confirm settings.  
If the function block is not closed, further function block parameters can be adjusted.  
Proceed as follows:  
Make the desired changes and confirm.  
If applicable, the next function block parameter is displayed.  
Confirm all parameters to exit the opened function block.  
To adjust additional function blocks, repeat the steps in the fields highlighted in gray.  
Exit configuration level.  
Return to the operating level.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
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Start-up  
2.3 Changing parameters  
Depending on the set system code number and the activated functions, not all parameters listed  
in the parameter list in the Appendix (–> section 12.2) might be available.  
The parameters are grouped by topics:  
4 PA1: Heating circuit 1  
4 PA2: Heating circuit 2  
4 PA3: Heating circuit 3  
4 PA4: DHW heating  
4 PA5: System-wide parameters  
4 PA6: Does not exist  
4 PA7: LON communication  
4 PA8: Does not exist  
4 PA9: Communication  
Proceed as follows:  
Switch to configuration and parameter level.  
Display shows: PA1  
Select parameter level.  
Open parameter level.  
Select parameter.  
Activate editing mode for the parameter.  
Edit the parameter.  
Confirm the parameter setting.  
To adjust additional parameters, repeat the steps in the fields highlighted in gray.  
Exit parameter level.  
Return to the operating level.  
Note!  
The controller automatically returns to the operating level if the keys are left unpressed for two  
minutes.  
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Start-up  
2.3.1 Enter key number  
Some functions are protected against unintentional or unauthorized access. These functions can  
only be activated or deactivated after the valid key number has been entered. The valid key  
number for initial start-up can be found on page 137. To avoid unauthorized use of the key  
number, remove the page or make the key number unreadable.  
Proceed as follows:  
0 0 0 0 blinks on the display.  
Set valid key number.  
Confirm key number.  
When the correct key number is entered, the function block that is to be changed  
blinks on the display.  
On entering an incorrect key number, the controllers switches to the next configuration  
level.  
The key number remains active for approx. 10 minutes.  
2.4 Configuring universal inputs  
The connected sensors are calibrated in Co6 configuration level.  
The following applies:  
Pt 100/Pt 1000 sensors (default setting)  
Pt 100/PTC sensors  
4 Co6 -> Fb00 = ON:  
4 Co6 -> Fb00 = OFF:  
The resistance values of the sensors can be found on page 128.  
Each universal input can be configured separately.  
The following inputs Ni 200/1000, PTC, NTC, Pt 100/1000, (0/4...20) mA, (0–10 V) can be  
configured as function block parameters.  
The function blocks 01 to 17 correspond to the binary inputs BE1 to BE17 in the terminal wiring  
plan (page 92 onwards).  
The function block for the required sensor is activated and the function block parameter selected  
which corresponds to the type of input signal.  
2.5 Calibrating sensors  
If the temperature values displayed at the controller differ from the actual temperatures, the  
measured values of all connected sensors can be changed or readjusted. To calibrate a sensor,  
the currently displayed sensor value must be changed such that it matches the temperature (ref-  
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Start-up  
erence temperature) measured directly at the point of measurement. Sensor calibration is to be  
activated in Co6 via function block Fb23.  
Proceed as follows:  
Switch to configuration and parameter level.  
Display shows: PA1  
Select Co6 level.  
Open Co6 level. Display shows: Fb00  
Select function block Fb23.  
Confirm selection. Display shows: 0 0 0 0  
Enter and confirm key number.  
Fb23 blinks on the display.  
Activate editing mode for function block.  
Activate function block.  
Start sensor calibration.  
Select the function block for the sensor that you want to calibrate:  
The function blocks Fb01 to Fb17 correspond to the inputs in the terminal wiring plan  
(page 92 onwards) e.g. Fb02 = BE2  
Activate editing mode for function block.  
Fb_ blinks on the display.  
Display measured value.  
Activate editing mode for measured value.  
Measured value blinks on the display.  
Correct measured temperature. Read the actual temperature directly from the ther-  
mometer at the point of measurement and enter this value as the reference tempera-  
ture.  
Confirm corrected measured temperature.  
Additional sensors are calibrated similarly.  
Select End.  
Exit configuration level.  
Return to the operating level.  
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Start-up  
Note!  
The sensor values adjusted are not reset by the Loading default settings function.  
2.6 Resetting to default values  
All parameters and function blocks from any parameter level can be reset to their default set-  
tings (WE).  
Proceed as follows:  
Reset to default settings.  
Function blocks and parameters are reset to their default settings (WE).  
Note!  
When the key number is active, the function blocks protected by the key number are also reset to  
their default settings.  
The controller is ready for operation with its default settings. You just need to set the correct date  
and current time.  
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Manual operation  
3
Manual operation  
Switch to manual mode to configure all outputs (see wiring diagram in section 11).  
Proceed as follows:  
Position all selector mode switches to +, 0 or .  
Select PU pump manual level.  
Open pump manual level.  
Select pump PU1 to PU5:  
PU1: BA11  
PU2: BA12  
PU3: BA13  
PU4: BA14  
PU5: BA15  
Confirm pump selection.  
The display blinks.  
Activate output:  
Deactivate output:  
Confirm setting.  
The modified values remain active as long as the controller is in manual mode.  
Move slide switch from 0, + or .  
Exit manual level.  
Note!  
In manual mode, frost protection is not guaranteed.  
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Systems  
4
Systems  
There are 10 hydraulic schematics.  
System code number (Anl)  
Heating  
1
2
3
4
5
6
7
8
9
10  
Outdoor temperature compensated flow temperature  
control with variable return flow temperature limitation  
Number of heating circuits  
No. of heating circuits w. mixing valve  
DHW heating  
2
2
2
2
3
2
1
1
2
1
3
3
1
1
2
1
2
2
2
2
From the primary circuit  
From the secondary circuit  
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Systems  
System Anl 1  
RK  
VF  
RK  
sek  
UP1  
RüF1  
RK VF2 RüF2  
HK2  
RF1 UP2  
AF1 AF2  
FW  
HK1  
RüF  
VF1  
RF2  
prim  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co2 -> Fb00  
Co2 -> Fb01  
Co2 -> Fb02  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= OFF (without RF2)  
= OFF (without RüF2)  
= OFF (without AF2)  
= ON (with VFsek)  
= ON (with RüFprim)  
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Systems  
System Anl 2  
RK  
FW  
VF  
sek  
RK  
HK1  
RüF1  
RK VF2 RüF2  
HK2  
AF1 AF2  
RüF  
UP1  
VF1  
RF1 UP2  
RF2  
prim  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co2 -> Fb00  
Co2 -> Fb01  
Co2 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb03  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= OFF (without RF2)  
= OFF (without RüF2)  
= OFF (without AF2)  
= ON (with SF1)  
= ON (with SF2)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
= ON (with RüFprim)  
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Systems  
System Anl 3  
RK  
FW  
VF  
sek  
RK  
HK1  
RüF1  
RK  
VF2 RüF2  
VF3  
AF1 AF2  
HK2  
RüF  
UP1  
VF1  
RF1 UP2  
RF2 UP3  
prim  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co2 -> Fb00  
Co2 -> Fb01  
Co2 -> Fb02  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)*  
= OFF (without RüF1)  
= ON (with AF1)  
= OFF (without RF2)*  
= OFF (without RüF2)  
= OFF (without AF2)  
= ON (with VFsek)  
= ON (with RüFprim)  
*
Only for optimization and temperature reading  
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Systems  
System Anl 4  
WW  
KW  
RüFTW  
VFT  
TLP  
VFS  
SF2  
ZP  
AF1  
RK  
FW  
VF  
RK  
UP1  
RüF1  
RK  
TW  
sek  
HK1  
SLP  
RüF  
VF1  
RF1  
SF1  
prim  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb02  
Co4 -> Fb03  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= ON (with SF1)  
= ON (with SF2)  
= OFF (without RüFTW)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
= ON (with RüFprim)  
Set Co4 -> Fb11 = ON if the instrumentation represented by the broken line is required.  
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Systems  
System Anl 5  
WW  
KW  
VFS  
SLP  
SF2  
ZP  
AF1  
RK  
FW  
VF  
RK  
UP1  
RüF1  
UP2  
RF1  
RK  
TW  
VFT RüFTW  
TLP  
sek  
HK1  
RüF  
VF1  
VF2  
SF1  
prim  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb02  
Co4 -> Fb03  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)*  
= OFF (without RüF1)  
= ON (with AF1)  
= ON (with SF1)  
= ON (with SF2)  
= OFF (without RüFTW)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
= ON (with RüFprim)  
*
Only for optimization and temperature reading  
Set Co4 -> Fb11 = ON if the instrumentation represented by the broken line is required.  
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Systems  
System Anl 6  
RK  
HK1  
RüF1  
VF2 RüF2  
VF3 RüF3  
AF1 AF2 AF3  
UP2  
UP3  
VF  
sek  
UP1  
VF1  
RF1 RK  
RF2 RK  
RF3  
HK2  
HK3  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co2 -> Fb00  
Co2 -> Fb01  
Co2 -> Fb02  
Co3 -> Fb00  
Co3 -> Fb01  
Co3 -> Fb02  
Co5 -> Fb00  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= OFF (without RF2)  
= OFF (without RüF2)  
= OFF (without AF2)  
= OFF (without RF3)  
= OFF (without RüF3)  
= OFF (without AF3)  
= ON (with VFsek)  
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Systems  
System Anl 7  
WW  
KW  
RK  
TW  
VF  
sek  
RK  
HK1  
RüF1  
VFT  
RüFTW  
TLP  
VFS  
SF2  
ZP  
SF1  
AF1  
RK  
FW  
RüF  
prim  
UP1  
SLP  
VF1  
RF1  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb02  
Co4 -> Fb03  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= ON (with SF1)  
= ON (with SF2)  
= OFF (without RüFTW)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
= ON (with RüFprim)  
Set Co4 -> Fb11 = ON if the instrumentation represented by the broken line is required.  
EB 5179 EN 35  
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Systems  
System Anl 8  
WW  
KW  
RK  
TW  
VF  
sek  
RK  
HK1  
RüF1 UP2  
RF1  
VFT  
RüFTW  
VF2 TLP  
VFS  
SF2  
ZP  
SF1  
AF1  
RK  
FW  
RüF  
prim  
UP1  
SLP  
VF1  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb02  
Co4 -> Fb03  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= ON (with SF1)  
= ON (with SF2)  
= OFF (without RüFTW)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
= ON (with RüFprim)  
Set Co4 -> Fb11 = ON if the instrumentation represented by the broken line is required.  
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Systems  
System Anl 9  
WW  
KW  
RK  
TW  
VFsek RK  
UP1  
RüF1 UP2  
RF1 RK  
RüF2  
VFT  
RüFTW  
VFS  
SLP  
SF2  
ZP  
SF1  
HK1  
VF1  
AF1 AF2  
VF2  
RF2 TLP  
HK2  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co2 -> Fb00  
Co2 -> Fb01  
Co2 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb02  
Co4 -> Fb03  
Co5 -> Fb00  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= OFF (without RF2)  
= OFF (without RüF2)  
= OFF (without AF2)  
= ON (with SF1)  
= ON (with SF2)  
= OFF (without RüFTW)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
Set Co4 -> Fb11 = ON if the instrumentation represented by the broken line is required.  
EB 5179 EN 37  
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Systems  
System Anl 10  
WW  
KW  
RK  
VF  
sek  
RK  
HK1  
RüF1 UP2  
VF1 RF1 RK  
VF2 RüF2 RK  
VFS  
SLP  
SF2 SF1  
ZP AF1 AF2  
RüFTW  
FW  
RüF  
prim  
TW  
TLP RF2 VFT  
UP1  
HK2  
BE  
BA  
AE  
RK  
Default setting  
Co1 -> Fb00  
Co1 -> Fb01  
Co1 -> Fb02  
Co2 -> Fb00  
Co2 -> Fb01  
Co2 -> Fb02  
Co4 -> Fb00  
Co4 -> Fb01  
Co4 -> Fb02  
Co4 -> Fb03  
Co5 -> Fb00  
Co5 -> Fb01  
= OFF (without RF1)  
= OFF (without RüF1)  
= ON (with AF1)  
= OFF (without RF2)  
= OFF (without RüF2)  
= OFF (without AF2)  
= ON (with SF1)  
= ON (with SF2)  
= OFF (without RüFTW)  
= ON (with VFS, with VFT)  
= ON (with VFsek)  
= ON (with RüFprim)  
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Functions of the heating circuit  
5
Functions of the heating circuit  
Which controller functions are available depends on the selected system code number (Anl).  
5.1 Functioning principle  
The heating circuit with the highest flow set point has priority. This principle applies to all heat-  
ing circuits with mixing valves. In systems Anl 3, 5 and 8, the pump circuit has priority. The flow  
set point of the heating circuit with priority is controlled by the valve in the pre-control circuit.  
If several heating circuits have the same flow set point, the heating circuit with lowest number al-  
ways has priority and is controlled by the primary valve.  
5.2 Weather-compensated control  
When weather-compensated control is used, the flow temperature is controlled according to the  
outdoor temperature. The heating characteristic in the controller defines the flow temperature  
set point as a function of the outdoor temperature (–> Fig. 2).  
[ C]  
˚
t
VL  
3.2  
2.9  
2.6  
130  
2.4  
2.2  
2.0  
120  
110  
100  
90  
tVL Flow temperature  
tA Outdoor temperature  
1.8  
1.6  
1.4  
80  
70  
1.2  
1.0  
0.8  
0.4  
60  
50  
40  
30  
20  
0.2  
t
A
20  
16  
12  
8
4
0
-4  
-8  
-12  
-16  
-20 [ C]  
˚
Fig. 2 · Gradient characteristics  
Function  
WE  
Configuration  
Outdoor sensor AF1, 2, 3  
Co1, 2, 3 -> Fb02 = ON*  
* Co1 -> Fb02 cannot be deactivated  
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Functions of the heating circuit  
If just one outdoor sensor should be connected, connect it to AF1. This outdoor temperature is  
then used also for HK2 and HK3.  
5.2.1 Gradient characteristic  
Basically, the following rule applies: a decrease in the outdoor temperature causes the flow tem-  
perature to increase. By varying the Gradient and Level parameters, you can adapt the charac-  
teristic to your individual requirements. Increasing Gradient results in a higher flow tempera-  
ture, decreasing Gradient in a lower flow temperature. The parameter Level performs a parallel  
transport of the heating characteristic in an upward or downward direction.  
Outside the times-of-use, reduced set points are used for control:  
Reduced flow set point = Flow set point Set-back difference.  
The Max. flow temperature and Min. flow temperature parameters mark the upper and lower lim-  
its of the flow temperature. A separate gradient characteristic can be selected for the limitation  
of the return flow temperature.  
Examples for adjusting the characteristic:  
Gradient approx. 1.8  
Gradient approx. 1.4  
Gradient approx. 1.0  
4 Old building, radiator design 90/70:  
4 New building, radiator design 70/55:  
4 New building, radiator design 55/45:  
Gradient smaller 0.5  
4 Underfloor heating depending on arrangement:  
Functions  
WE  
OFF  
OFF  
Configuration  
4-point characteristic  
4-point characteristic  
Co1, 2, 3 -> Fb10 = OFF  
Co5 -> Fb03 = OFF (Anl 3, 5, 8 and 10)  
Parameters  
WE  
Parameter level / Range of values  
PA1, 2, 3 / 0.4 to 3.2  
Gradient, flow  
1.8  
Level, flow  
0 °C  
PA1, 2, 3 / –30 to 30 °C  
Set-back difference  
Min. flow temperature  
Max. flow temperature  
20 °C PA1, 2, 3 / 0 to 50 °C  
90 °C PA1, 2, 3 / 20 to 130 °C  
20 °C PA1, 2, 3 / 20 to 130 °C  
5.2.2 4-point characteristic  
The 4-point characteristic allows you to define your own heating characteristic.  
It is defined by 4 points for the Outdoor temperature, the Flow temperature and the Return flow  
temperature. The Set-back difference at points 2 and 3 indicates how much the flow temperature  
is reduced outside the times-of-use.  
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Functions of the heating circuit  
The Max. flow temperature and Min. flow temperature parameters mark the upper and lower lim-  
its of the flow temperature.  
t
[˚C]  
VL  
100  
P1 to 4 Points 1 to 4  
t
VLmax  
90  
80  
70  
60  
50  
40  
30  
20  
10  
t
t
Flow temperature  
VL  
A
Outdoor temperature  
P1  
...min  
Minimum t  
VL  
...max  
Maximum t  
VL  
P2  
4-point characteristic  
Reduced 4-point  
characteristic  
P3  
P4  
t
VLmin  
t
A
20  
15 10  
5
0
–5 –10 –15 –20  
[˚C]  
Fig. 3 · 4-point characteristic  
Functions  
WE  
OFF  
OFF  
Configuration  
4-point characteristic  
4-point characteristic  
Co1, 2, 3 -> Fb10 = ON  
Co4 -> Fb03 = ON (Anl 3, 5, 8 and 10)  
Parameters  
WE  
Parameter level / Range of values  
Flow temperature  
Point 1  
Point 2  
Point 3  
Point 4  
70 °C PA1, 2, 3 / 20 to 130 °C  
55 °C  
40 °C  
25 °C  
Outdoor temperature Point 1  
–15°C PA1, 2, 3 / –30 to 90 °C  
– 5 °C  
5 °C  
Point 2  
Point 3  
Point 4  
15 °C  
Return flow temperature Point 1  
65 °C PA1, 2, 3 / 20 to 90 °C  
Point 2  
Point 3  
Point 4  
50 °C  
35 °C  
20 °C  
Set-back difference  
Points 2, 3  
20 °C PA1, 2, 3 / 0 to 50 °C  
90 °C PA1, 2, 3 / 20 to 130 °C  
20 °C PA1, 2, 3 / 20 to 130 °C  
Max. flow temperature  
Min. flow temperature  
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Functions of the heating circuit  
Note!  
The 4-point characteristic function can only be activated when the Adaptation function is not  
active (Co1, 2, 3 -> Fb07 = OFF).  
5.3 Fixed set point control  
During the times-of-use, the flow temperature can be controlled according to a fixed set point.  
Outside the times-of-use, this set point is reduced by the Set-back difference. Both Minimum  
flow temperature and Maximum flow temperature parameters are set to identical values.  
Parameters  
WE  
Parameter level / Range of values  
Max. flow temperature  
Min. flow temperature  
Set-back difference  
90 °C PA1, 2, 3 / 20 to 130 °C  
20 °C PA1, 2, 3 / 20 to 130 °C  
20 °C PA1, 2, 3 / 0 to 50 °C  
5.4 Differential temperature control using variable weighting factors  
This function allows the return flow temperature to be taken into account in addition to the flow  
temperature. It can only be used in heating circuits with mixing valves.  
The difference between the flow and return flow temperature is specified using the Intended  
temperature difference parameter. It is a measure for the energy consumption in a heating cir-  
cuit. The greater the temperature difference, the larger the energy required by a heating circuit.  
If the actual temperature difference is not the same as the intended temperature difference, it is  
evaluated by the Kp factor for differential temperature control. After initial signs for a deviation  
occur, the flow temperature is raised or reduced by this factor.  
When the Kp factor for differential temperature control is set to 0, the return flow temperature  
does not have any affect on the control of the flow temperature.  
When the Kp factor for differential temperature control is set to 1, a pure return flow tempera-  
ture limitation takes place (–> section 7.4).  
The reset time TN determines how fast the deviation of the temperature difference affects the  
control circuit (the larger TN is, the slower the rate in change).  
The Intended temperature difference parameter is maintained at a constant value by adjusting  
the speed of the associated circulation pump in the heating circuit. The pump is controlled by an  
analog 0 to 10 V signal, which is applied to the associated analog output (AA) of the controller  
(AA1 to AA3). The control signal is displayed in the associated info level. When the differential  
temperature control without return flow limitation is active, the actual temperature of the return  
flow is nevertheless displayed. After pressing the enter key, the set point is displayed together  
with the string "S-r" (for differential temperature control using variable weighting factors).  
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Functions of the heating circuit  
Function  
WE  
Configuration  
Differential temperature control using variable  
weighting factors  
OFF  
0.5  
Co1, 2, 3 -> Fb18 = ON  
Proportional gain factor KP /0.1 to 999  
200 s Reset time TN / 1 to 999 s  
20 °C Intended temp. difference / 0 to 40 °C  
90 %  
30 %  
Analog value max. / 0 to 100 %  
Analog value min. / 0 to 100 %  
Parameters  
WE  
Parameter level / Range of values  
Max. return flow temperature*  
Min. return flow temperature*  
65 °C PA1, 2, 3 / 20 to 90 °C  
20 °C PA1, 2, 3 / 20 to 90 °C  
*
Can only be selected when Co5 -> Fb01 = ON, select: steig  
Note!  
Only one function can be assigned to an analog output (e.g. flow temperature control, passing  
on the outdoor temperature or differential temperature control).  
5.5 Deactivation depending on outdoor temperature  
5.5.1 OT deactivation value in rated operation  
If the outdoor temperature exceeds the limit OT deactivation value in rated operation, the affected  
heating circuit is put out of service immediately. The valve is closed and the pump is switched off  
after t = 2 x Valve transit time. When the outdoor temperature falls below this value (less 0.5 °C  
hysteresis), heating operation is restarted immediately.  
With the default settings, this means that, during the warm season, the system is switched off at an  
outdoor temperature of 22 °C.  
Parameter  
WE  
Parameter level / Range of values  
OT deactivation value  
in rated operation  
22 °C PA1, 2, 3 / 0 to 90 °C  
5.5.2 OT deactivation value in reduced operation  
If the outdoor temperature in reduced operation exceeds the limit OT deactivation value in re-  
duced operation, the affected heating circuit is put out of service immediately. The valve is closed  
and the pump is switched off after t = 2 x Valve transit time.  
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Functions of the heating circuit  
When the outdoor temperature falls below this value (less 0.5 °C hysteresis), heating operation is  
restarted immediately.  
With the default settings, this means that, at night, the system is switched off at an outdoor tem-  
perature of 10 °C to save energy. Nevertheless, remember that the system requires some time in  
the morning to heat up the building (–> Outdoor temperature-dependent advance heating,  
section 5.7).  
Parameter  
WE  
Parameter level / Range of values  
OT deactivation value  
in reduced operation  
10 °C PA1, 2, 3 / –10 to 50 °C  
5.5.3 OT activation value in rated operation  
If a heating circuit is in reduced operation (automatic mode), the circuit is automatically trans-  
ferred to rated operation when the outdoor temperature falls below the limit OT activation value  
in rated operation. When the limit value is exceeded (plus 0.5 °C hysteresis), reduced operation  
is restarted.  
This function is activated at very low temperatures to avoid the building cooling down exces-  
sively outside the times-of-use when low outdoor temperatures occur.  
Parameter  
WE  
Parameter level / Range of values  
OT activation value  
in rated operation  
–15 °C PA1, 2, 3 / –30 to 50 °C  
5.5.4 Summer mode  
Summer mode is activated depending on the mean daytime temperature (measured between  
7.00h and 22.00h) during the desired period.  
If the mean daytime temperature exceeds the Outdoor temperature limit in summer mode on  
two consecutive days, summer mode is activated on the following day: the heating is switched  
off. If the mean daytime temperature remains below the Outdoor temperature limit in summer  
mode on the next day, summer mode is deactivated on the following day.  
Functions  
WE  
Configuration  
Summer mode  
OFF  
Co1, 2, 3 -> Fb11 = ON  
01.06 Start summer mode / 01.01 (1 Jan) to 31.12 (31 Dec)  
30.09 Stop summer mode / 01.01 to 31.12  
18 °C Outdoor temperature limit in summer mode / 0 to 30 °C  
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Functions of the heating circuit  
Note!  
Summer mode only becomes effective when the controller is in automatic mode ( ).  
5.6 Delayed outdoor temperature adaptation  
The calculated outdoor temperature is used to determine the flow temperature set point. The  
heat response is delayed when the outdoor temperature either decreases, or increases and de-  
creases. If the outdoor temperature varies by, for example, 12 °C within a very short period of  
time, the calculated outdoor temperature is adapted to the actual outdoor temperature in small  
12°C  
steps. Assuming a Delay of 3 °C/h, the adaptation would take t =  
= 4 h.  
3°C /h  
Note!  
The delayed outdoor temperature adaptation helps avoid unnecessary overloads of central  
heating stations in combination with either overheated buildings occurring, for example, due to  
warm winds, or temporarily insufficient heating due to the outdoor sensor being exposed to di-  
rect sunshine.  
In the operating level, the outdoor temperature blinks on the display while delayed outdoor tem-  
perature adaptation is active. The calculated outdoor temperature is displayed.  
Function  
WE  
Configuration  
Delayed outdoor temperature  
adaptation  
OFF  
Co5 -> Fb04 = ON  
Ab  
When outdoor temperature drops  
Auf Ab When outdoor temperature drops or rises  
3 °C/h Delay / 0.2 to 6.0 °C/h  
5.7 Outdoor temperature-dependent advance heating  
The controller activates the heating depending on the outdoor temperature before the  
time-of-use starts in normal operation. The Advance heating time is based on an outdoor tem-  
perature of –12 °C. The advance heating time is shorter when the outdoor temperature is  
higher.  
Functions  
WE  
Configuration  
Optimization  
OFF  
Co1, 2, 3 -> Fb05 = ON, Select: 1  
120 min Advance heating time / 0 to 360 min  
Outdoor sensor AF1, 2, 3  
Co1, 2, 3 -> Fb02 = ON  
EB 5179 EN 45  
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Functions of the heating circuit  
5.8 Remote operation  
Apart from measuring the room temperature, the Type 5244 Room Sensor (PTC sensor) and  
Type 5257-5 Room Sensor (Pt 1000 sensor) offer the following options to influence the control  
process:  
Automatic mode · Day mode · Night mode  
4 Set point correction: during rated operation, the room temperature set point can be in-  
4 Selection of the operating mode:  
creased or reduced by up to 5 °C using a continuously adjustable rotary knob.  
When the room sensor is activated, the measured room temperature is displayed. Nevertheless,  
it is not used for control unless the Optimization, Adaptation, Flash adaptation or Room tem-  
perature-dependent control functions have been activated.  
28  
27  
26  
25  
24  
23  
22  
21  
20  
TROVIS  
19  
18  
17  
5179  
Type 5244/5257-5  
16  
14  
12  
10  
8
15  
13  
11  
9
3
1
2
Fig. 4 · Wiring plan for Type 5244/5257-5 Room Sensors/TROVIS 5179 Controller  
Function  
WE  
Configuration  
Room sensor RF1, 2, 3  
OFF  
Co1, 2, 3 -> Fb00 = ON  
5.9 Optimization with room sensor  
Both the following described functions should only be used when the room (reference room) in  
which the room sensor is located has a typical heating pattern similar to the rest of the building.  
In addition, there should be no thermostat valves mounted on the radiators in this reference  
room.  
46 EB 5179 EN  
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Functions of the DHW circuit  
There are two types of optimization depending on the activation conditions:  
4 Outdoor temperature-dependent advance heating, room temperature-dependent deacti-  
vation  
The controller activates the heating depending on the outdoor temperature before the  
time-of-use starts in normal operation. The Advance heating time is based on an outdoor  
temperature of –12 °C. The advance heating time is shorter when the outdoor temperature is  
higher (see section 5.7).  
4 Room temperature-dependent advance heating and deactivation  
The controller calculates the required advance heating time (max. 6 hours) adapted to the  
building characteristics, resulting in the Day set point (rated room temperature) being  
reached in the reference room when the time-of-use starts. The heating is heated with the  
maximum flow temperature during the advance heating phase. As soon as the Day set point  
is reached, weather-compensated control starts.  
The controller deactivates the heating in both types of optimization depending on the room sen-  
sors up to two hours before the time-of-use finishes. The controller chooses the deactivation time  
such that the room temperature does not drop significantly below the desired temperature until  
the time-of-use ends.  
During the advance heating period and the premature deactivation of the heating system, the  
icons  
or  
blink on the display. Outside the times-of-use, the controller monitors the Night  
set point (reduced room temperature). When the temperature falls below the night set point, the  
controller heats with the max. flow temperature until the measured room temperature exceeds  
the adjusted value by 1 °C.  
Note!  
Direct sunshine can cause the room temperature to increase and thus result in the premature de-  
activation of the heating system.  
When the room temperature decreases while the heating system is temporarily outside its  
times-of-use, this can prematurely cause the controller to heat up to the adjusted Room set point.  
Function  
WE  
Configuration  
Room sensor RF1, 2, 3  
OFF  
Co1, 2, 3 -> Fb00 = ON  
Outdoor temperature-dependent advance heating, room temperature-dependent deactivation:  
Optimization  
OFF  
Co1, 2, 3 -> Fb05 = ON, select: 2  
120 min Advance heating time / 0 to 360 min  
Outdoor sensor AF1, 2, 3  
Co1, 2, 3 -> Fb02 = ON  
Room temperature-dependent advance heating and deactivation:  
Optimization OFF  
Co1 to Co3 -> Fb05 = ON, select: 3  
EB 5179 EN 47  
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Functions of the DHW circuit  
Parameters  
WE  
Parameter level / Range of values  
PA1, 2, 3 / 10 to 90 °C  
PA1, 2, 3 / 10 to 90 °C  
PA1, 2, 3 / 10 to 90 °C  
Day set point  
20 °C  
17 °C  
10 °C  
Night set point  
Sustained temperature  
5.10 Flash adaptation  
Direct reactions to deviations in room temperature can be achieved using the function block set-  
ting: Co1, 2, 3 -> Fb08 = ON.  
Flash adaptation counteracts room temperature deviations by increasing or decreasing the flow  
temperature by up to 30 °C. The shift is displayed under Level in PA1, 2, 3 parameter levels; it  
cannot be altered. The set point correction over remote room panel is not possible.  
Note!  
Cooling loads, such as drafts or open windows, affect the control process!  
Rooms may be temporarily overheated when the cooling load has been eliminated!  
Functions  
WE  
OFF  
OFF  
Configuration  
Room sensor RF1, 2, 3  
Flash adaptation  
Co1, 2, 3 -> Fb00 = ON  
Co1, 2, 3 -> Fb08 = ON  
5.11 Adaptation  
The controller is capable of automatically adapting the heating characteristic to the building  
characteristics, provided a gradient characteristic has been set (Co1, 2, 3 -> Fb10 = OFF). The  
reference room, where the room sensor is located, represents the entire building and is moni-  
tored to ensure that the Day set point is maintained. When the mean measured room tempera-  
ture in rated operation deviates from the adjusted set point, the heating characteristic is modi-  
fied accordingly for the following time-of-use. The corrected value is displayed in PA1, 2, 3 pa-  
rameter levels under Gradient, flow.  
Functions  
WE  
Configuration  
Room sensor RF1, 2, 3  
Outdoor sensor AF1, 2, 3  
Adaptation  
OFF  
Co1, 2, 3 -> Fb00 = ON  
Co1, 2, 3 -> Fb02 = ON  
Co1, 2, 3 -> Fb07 = ON  
Co1, 2, 3 -> Fb10 = OFF  
OFF  
OFF  
4-point characteristic  
48 EB 5179 EN  
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Appendix  
Parameter  
WE  
Parameter level / Range of values  
PA1, 2, 3 / 10 to 90 °C  
Day set point  
20 °C  
5.12 Room temperature-dependent control  
In systems Anl 6 and 9, the Room temperature-dependent control function can be separately  
activated for each heating circuit. The Room sensor function must be activated for this function.  
Flow and return flow sensors only serve to display the temperature and can therefore be deacti-  
vated.  
The outdoor sensors are not required for the room control function, but are still required for the  
Frost protection function. The outdoor sensor AF1 can also be deactivated if all the control cir-  
cuits are configured as room control circuits.  
Activation of the room control function causes the control parameters to be automatically set to  
the following settings:  
TN (reset time) = 1617 s, TV (derivative-action time) = 330 s, KP (proportional gain) = 20  
With the aid of Parameter optimization (Co1, 2, 3 -> Fb16 = ON), these settings are opti-  
mized. This, however, requires a constant room temperature at the time when the function is ac-  
tivated and a temperature difference between the current room temperature and the new room  
set point of at least 3 °C.  
In room control circuits, the heating circuit pump is switched on during the advance heating  
phase.  
Note!  
A fictive flow set point is reported to master controller in case there is a demand for an exter-  
nally required signal when the room control function is active. This set point is calculated from  
the characteristic and outdoor temperature and adapted to the actual demand over adaptation  
and flash adaptation.  
The fictive flow set point has no effect on mixer circuits and blinks on the display. Just the third  
type of optimization is permitted when the room control is active.  
!
Note! The frost protection cannot function without an outdoor sensor.  
EB 5179 EN 49  
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Appendix  
Functions  
WE  
Configuration  
Room sensor RF1, 2, 3  
Room temperature dependent control  
Parameter optimization  
OFF  
OFF  
OFF  
Co1, 2, 3 -> Fb00 = ON  
Co1, 2, 3 -> Fb06 = ON  
Co1, 2, 3 -> Fb16  
Co1, 2, 3 -> Fb17  
Flow sensor OFF when room temperature OFF  
dependent control is used  
5.13 Pump management  
To control the circulation pumps for the heating circuits (UP1 and UP2), reed relay outputs can  
be used instead of the relay output. Depending on the operating state, the circulation pumps run  
during the times-of-use regulated depending on the differential pressure. The differential pres-  
sure is regulated by the pumps. Outside the times-of-use the circulation pumps are switched  
back to the minimum speed. The binary outputs BA1 to BA4 have the following function:  
4 BA1, BA3: Circulation pump on and off  
4 BA2, BA4: Reduce pump speed  
If the circulation pump is to be switched on, the contact of BA1 or BA3 is closed. The binary out-  
puts BA2 and BA4 can be configured over the function blocks Co1, 2 -> Fb13.  
BA2, BA4 = OFF outside the time-of-use  
BA2, BA4 = ON outside the time-of-use  
4 Co1, 2 -> Fb13 = ON:  
4 Co1, 2 -> Fb13 = OFF:  
Function  
WE  
Configuration  
Pump management  
OFF  
Co1, 2 -> Fb13  
Note!  
Refer to the pump manufacturer instructions for the exact terminal assignments of pumps since  
the terminal assignments vary depending on the pump.  
In systems Anl 3, 5, 8 and 10, the pumps of an uncontrolled heating circuit can be switched on  
and off over an external binary signal. For this purpose, deactivate the Potentiometer input  
function (Co1 to Co3 -> Fb12 = OFF) and select the function block parameter FrG-E.  
50 EB 5179 EN  
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Appendix  
5.14 Releasing the heating circuit  
The release of the heating circuit in automatic mode is a default setting after the time schedule  
has been programmed. In addition, it is possible to release the heating circuit over the corre-  
sponding potentiometer inputs. When no signal exists at these inputs and the slide switch of the  
heating circuit is positioned to automatic mode ( ), the heating circuit is in stand-by mode (i.e.  
just the frost protection is active).  
Function  
WE  
Configuration  
Potentiometer input for release of HK  
OFF  
Co1, 2, 3 -> Fb12 = OFF  
FrG-E: Release over binary signal (potentiometer)  
FrG-A: Release over time schedule  
with FrG-A:RLG: Configuration as per input  
FREE: Input freely available  
5.15 Position feedback in pre-control circuit  
A potentiometer for position feedback (series resistor: 1000 Ω) can be connected at terminal 27  
instead of a potentiometer to shift the set point over the room sensor.  
The actual position of the valve in the pre-control circuit is issued as an external resistance  
value.  
The valve position is displayed in % of the travel in the operating level at the end of the control  
circuit data for the pre-control circuit (level 5).  
Function  
WE  
Configuration  
Potentiometer in pre-control circuit  
OFF  
Co5 -> Fb16 = ON  
Note!  
The potentiometer input HK2 is not available when Co5 -> Fb16 = ON is configured.  
EB 5179 EN 51  
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Functions of the DHW circuit  
6
Functions of the DHW circuit  
6.1 DHW heating in the storage tank charging system  
TLP  
Heat exchanger  
charging pump  
SLP  
TW  
VFS/VFT  
SLP  
Flow sensors  
Storage tank  
charging pump  
Storage sensor 1  
Storage sensor 2  
Circulation pump  
DHW  
VFS  
VFT  
TLP  
SF1  
SF2  
ZP  
SF1  
SF2  
ZP  
TW  
KW  
KW  
Cold water  
Fig. 5 · DHW heating in a storage tank charging system  
Start storage tank charging  
The controller begins charging the storage tank when the water temperature measured at sen-  
sor SF1 falls below the DHW demand ON by 0.1 °C. If the flow temperature in the system is  
higher than the required charging temperature, the controller attempts to reduce it in the heat-  
ing circuit for maximum 3 minutes before the heat exchanger pump together with the storage  
tank charging pump start to run.  
When there is no heating operation or when the flow temperature in the system is lower, the  
heat exchanger charging pump is switched on immediately. The storage tank charging pump is  
switched on when the temperature currently measured at storage sensor VFT has reached the  
temperature measured at sensor SF1.  
If a storage tank thermostat is used, the storage tank charging pump is switched on when the  
temperature T = Charging temperature – 5 °C is reached at sensor VFT.  
Note!  
The charging temperature VFT is regulated by the primary valve in system Anl 2. In systems  
Anl 4, 5 and 10, the charging temperature VFT is only regulated by the primary valve when the  
DHW demand has the highest set point and has priority.  
In all other systems (Anl 7, 8 and 9) the mixing valve regulates the charging temperature VFT.  
When the Circulation pump function is active, the circulation pump remains in operation ac-  
cording to the time schedule. The pump is switched off when this function is deactivated.  
52 EB 5179 EN  
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System-wide functions  
The Mixing valve always active function allows the heat exchanger to maintain the charging  
temperature using the mixing valve. The heat exchanger charging pump remains switched on  
and the return flow temperature is not limited outside the times-of-use.  
When the flow sensor VFS is active, the set point in the heat exchanger charging circuit is af-  
fected by the system deviation in the storage tank charging circuit when the storage tank charg-  
ing pump is switched on:  
If the temperature measured at the flow sensor is smaller than the required charging tempera-  
ture, the set point in the heat exchanger charging circuit is raised by 1 °C every minute.  
If the set point in the heat exchanger charging circuit reaches the value in Maximum charging  
temperature parameter, it is not raised any further; an Err 10 alarm is generated.  
Stop storage tank charging  
The controller stops charging the storage tank when the water temperature in the storage tank  
measured at sensor SF2 (DHW demand OFF) exceeds the set point by 0.1 °C. The primary  
valve (Anl 2) or the mixing valve in the DHW circuit are sent pulse signals until the heat  
exchanger charging temperature on the primary side at sensor VFT has fallen below the Heat  
exchanger charging pump deactivation limit.  
The heat exchanger charging pump is switched off according to the time schedule and depend-  
ing on the temperature. When the flow set point of the primary heating circuit is lower than the  
Heat exchanger charging pump deactivation limit, the heat exchanger charging pump (TLP) is  
first switched off when the primary heat exchanger charging temperature at sensor VFT has  
dropped to the same level as the flow set point of the primary heating circuit. The heat  
exchanger charging pump is switched off at the latest after t = 2 x Transit time of the primary  
valve.  
The storage tank charging pump (SLP) is switched off after t = 2 x Transit time of the primary  
valve or when the storage tank charging temperature in the secondary circuit at sensor VFS has  
fallen below the Storage tank charging pump deactivation limit.  
The circulation pump is switched on and off according to a time schedule.  
Functions  
WE  
ON  
ON  
ON  
OFF  
OFF  
OFF  
Configuration  
Storage sensor SF1  
Storage sensor SF2  
Flow sensor VFS  
Co4 -> Fb00 = ON  
Co4 -> Fb01 = ON  
Co4 -> Fb03  
Circulation pump  
Storage tank system  
Mixing valve always active  
Co4 -> Fb04  
Co4 -> Fb10 = OFF  
Co4 -> Fb11  
EB 5179 EN 53  
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Appendix  
Parameters  
WE  
Parameter level / Range of values  
DHW demand ON  
DHW demand OFF  
Charging temperature  
40 °C PA4 / 20 to 90 °C  
45 °C PA4 / 20 to 90 °C  
55 °C PA4 / 20 to 90 °C  
50 °C PA4 / 20 to 90 °C  
Heat exchanger charging pump  
deactivation limit  
Storage tank charging pump  
deactivation limit  
50 °C PA4 / 20 to 90 °C  
120 °C PA4 / 20 to 120 °C  
Maximum charging temperature  
6.2 DHW heating in the storage tank system  
SLP  
Storage tank charging  
pump  
SLP  
VFS  
TW  
VL  
RL  
SF1  
VFS  
ZP  
KW  
TW  
VL  
Storage sensor 1  
Flow sensor  
Circulation pump  
Cold water  
Domestic hot water (DHW)  
Flow  
SF1  
ZP  
Zirk.  
KW  
RL  
Return flow  
Fig. 6 · DHW heating in storage tank system, applies to systems Anl 4, 5, 7, 8, 9 and 10  
Anl 2: without three-way valve  
Start storage tank charging  
The controller can be reconfigured for all systems with DHW heating to control a DHW storage  
tank with heating register (storage tank system).  
The controller switches the storage tank charging pump (SLP) on and off and controls the mixing  
valve for the DHW circuit. A mixing valve in the DHW circuit does not exist in system Anl 2. The  
sensor VFS is connected to terminal 28 and the storage tank charging pump to terminal 45.  
The controller starts the storage tank charging when the water temperature measured at sensor  
SF1 falls below the DHW demand ON by 0.1 °C. If the flow temperature in the system is higher  
than the required charging temperature, the controller attempts to reduce it in the heating circuit  
for maximum three minutes before the storage tank charging pump starts to run.  
54 EB 5179 EN  
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Appendix  
When there is no heating operation or when the flow temperature in the system is lower, the  
storage tank charging pump is switched on immediately.  
If a storage tank thermostat is used, the storage tank charging pump is switched on when the  
temperature T = Charging temperature – 5 °C is reached at sensor VFS.  
Note!  
The charging temperature VFS is controlled in system Anl 2 by the primary valve. In all the other  
systems (Anl 4, 5, 7, 8, 9 and 10) the mixing valve regulates the charging temperature VFS.  
When the Circulations pump function is active, the circulation pump remains in operation ac-  
cording to the time schedule. The pumps is switched off when this function is deactivated.  
The Mixing valve always active function allows the heat exchanger to maintain the charging  
temperature using the mixing valve. The heat exchanger charging pump remains switched on  
and the return flow temperature is not limited outside the times-of-use.  
Stop storage tank charging  
The controller stops charging the storage tank when the water temperature in the storage tank  
measured at sensor SF1 exceeds the temperature T = Charging temperature + Hysteresis by  
0.1 °C. When there is no heating operation or when the flow temperature demand in the system  
is lower, the corresponding valve is closed.  
The storage tank charging pump is switched off when the charging temperature at sensor VFS  
has fallen below the Storage tank charging pump deactivation limit; however, at the latest, af-  
ter t = 2 x Transit time of the primary valve.  
In the default setting, the storage tank is charged by 5 °C to at least 50 °C when the storage tank  
temperature falls below 40 °C. The charging temperature is 55 °C. On completing the storage  
tank charging, the heating valve is closed and the charging pump continues to run until the  
charging temperature falls below 50 °C.  
Functions  
WE  
ON  
OFF  
OFF  
OFF  
Configuration  
Storage sensor SF1  
Storage tank system  
Circulation pump  
Mixing valve always active  
Co4 -> Fb00 = ON  
Co4 -> Fb10 = ON  
Co4 -> Fb04  
Co4 -> Fb11  
EB 5179 EN 55  
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Appendix  
Parameters  
WE  
40 °C PA4 / 20 to 90 °C  
5 °C PA4 / 0 to 30 °C  
Parameter level / Range of values  
DHW demand ON  
Hysteresis  
Charging temperature  
55 °C PA4 / 20 to 90 °C  
50 °C PA4 / 20 to 90 °C  
Storage tank charging pump  
deactivation limit  
6.3 Priority operation  
In many district heating systems with primary DHW heating, the allotted amount of water is only  
intended to supply the heating system. As a result, the capacity required for DHW heating  
needs to be taken from the heating system when great heating loads occur; and this, until DHW  
heating has been concluded.  
Nevertheless, heating operation is not to be simply interrupted. Only the amount of energy re-  
quired for DHW heating is to be deducted. This can be achieved by using the priority functions  
Reverse control and Set-back operation.  
6.3.1 Reverse control  
In all systems with DHW heating and at least one heating circuit with a control valve, the DHW  
heating can be given priority by applying a reverse control. With the setting Co4 -> Fb06 =  
ON, the charging temperature can be monitored. If the temperature also falls below the charg-  
ing temperature after the time period set in function block Fb07 has elapsed, the heating circuit  
is closed and the set point remains the same.  
Which circuit is closed depends on how the system (Anl) is configured:  
Heating circuit with the highest flow set point  
Heating circuit  
Heating circuit 1;  
4 Anl 2:  
4 Anl 4:  
4 Anl 5:  
Switching off the pump heating circuit with Co4 -> Fb05 possible.  
Pre-control circuit of heating  
Pre-control circuit of heating  
Heating circuit 1  
4 Anl 7:  
4 Anl 8:  
4 Anl 9:  
4 Anl 10: Both heating circuits  
Functions  
WE  
ON  
ON  
Configuration  
Reverse control  
Co4 -> Fb06 = ON  
Co4 -> Fb07*  
Time until reverse control  
*
Co4 -> Fb07 = ON: 2 minutes  
Co4 -> Fb07 = OFF: 10 minutes  
56 EB 5179 EN  
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Appendix  
6.3.2 Set-back operation  
In all systems with DHW heating and at least one heating circuit with control valve, DHW heat-  
ing can be given priority by applying set-back operation. The charging temperature can be  
monitored with the setting Co4 -> Fb06 = OFF and Activate priority in case of deviation > 0.  
Function  
WE  
Configuration  
Reverse control  
ON  
Co4 -> Fb06 = OFF  
0 °C  
Activate priority in case of deviation / 0 to 30 °C  
Note!  
The priority operation is deactivated with the setting Co4 -> Fb06 = OFF and Activate priority in  
case of deviation = 0!  
6.4 Forced charging of the DHW storage tank  
To provide the full room heating performance when the time-of-use of the heating circuits be-  
gins, existing storage tanks are charged one hour before the time-of-use of the heating circuits  
starts. For the individual controller, this means that storage tank charging is activated when the  
water temperature in the storage tank falls below the adjusted deactivation value of T = DHW  
demand ON + Hysteresis. The forced charging of the storage tank does not take place when the  
DHW circuit is not activated at the beginning of the time-of-use set for the heating circuit(s).  
Note!  
This function is not available when a storage tank thermostat is used.  
6.5 Thermal disinfection of the DHW storage tank  
In all systems with DHW heating, the DHW storage tank is thermally disinfected on a selected  
Day of the week (1 to 7) or every day (0). The storage tank is heated up to the adjusted Disinfec-  
tion temperature. The charging set point is always higher than the Disinfection temperature by  
the value in Charging boost. Disinfection begins at the adjusted Start time and, at the latest,  
ends at the specified Stop time.  
When the Disinfection temperature has not been reached at the end of the thermal disinfection  
cycle, an ERR-2 alarm is generated and  
by opening up Co4 -> Fb08.  
blinks on the display. This alarm can be confirmed  
The alarm is automatically reset when the Disinfection temperature is properly reached during  
the following thermal disinfection cycle.  
EB 5179 EN 57  
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Appendix  
Thermal disinfection for preventing legionella infection causes  
4 high return flow temperatures during the disinfection cycle (return flow temperature limita-  
tion suspended),  
4 high storage temperatures after thermal disinfection has been concluded,  
4 lime scale (possibly), which can have a negative effect on heat exchanger performance.  
Note!  
This function is not available when a storage tank thermostat is used.  
Functions  
WE  
ON  
Configuration  
Storage sensor SF1  
Thermal disinfection  
Co4 -> Fb00 = ON  
Co4 -> Fb08 = ON  
Day of the week / 1–7, 1, 2, ..., 7 with  
OFF  
3
1–7 = every day, 1 = Monday, ..., 7 = Sunday  
70 °C Disinfection temperature / 60 to 90 °C  
5 °C Charging boost / 0 to 30 °C  
00:00 Start time / 00:00h to 23:30h (in steps of 30 minutes)  
04:00 Stop time / 00:00h to 23:30h (in steps of 30 minutes)  
58 EB 5179 EN  
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System-wide functions  
7
System-wide functions  
7.1 Automatic summer time/winter time changeover  
The clock is automatically adjusted on the last Sunday in March at 2.00h and on the last Sunday  
in October at 3.00h.  
Function  
WE  
ON  
Configuration  
Summer time/winter time changeover  
Co5 -> Fb05 = ON  
7.2 Frost protection  
The Frost protection function does not work in manual mode.  
The heating system is automatically monitored for frost protection. The operation of a pump, a  
heating circuit or DHW circuit as a frost protection measure is indicated by  
on the display. If  
the outdoor temperature drops below 0 °C, the heating and circulation pumps are activated.  
The DHW storage tank is charged to 10 °C.  
7.3 Forced operation of the pumps  
When the heating circuit pumps have not been activated for 24 hours, forced operation of the  
pumps is started between 12.00h and 12.01h. This is done to avoid that the pumps get stuck  
when they are not operated for a longer period of time. The forced operation of the storage tank  
or heat exchanger charging pump is operated between 12.01h and 12.02h.  
7.4 Return flow temperature limitation  
The temperature difference between the flow and return flow indicates how well the energy is  
used: the greater the difference, the higher the efficiency. A return flow sensor is sufficient to  
evaluate the temperature difference when the flow temperatures are preset. The return flow tem-  
perature can be limited either to a value depending on the outdoor temperature (variable) or to  
a fixed set point.  
When the temperature measured at return flow sensor RüF exceeds the Limitation factor, the set  
point of the flow temperature (flow temperature of the heating system, charging temperature) is  
reduced. As a result, the primary flow rate is reduced and the return flow temperature falls. The  
set point reading (flow temperature of the heating system, charging temperature) blinks to indi-  
cate that a return flow limitation is active.  
EB 5179 EN 59  
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System-wide functions  
Function  
WE  
Configuration  
Return flow sensor RüF1, 2, 3  
OFF  
1.0  
Co1, 2, 3 -> Fb01 = ON  
Limitation factor / 0 to 25.5  
Parameters  
WE  
Parameter level / Range of values  
Max. return flow temperature  
Min. return flow temperature  
65 °C PA1, 2, 3 / 20 to 90 °C  
20 °C PA1, 2, 3 / 20 to 90 °C  
In systems with a DHW in a secondary circuit, the control during DHW heating uses the Return  
flow limitation temperature for DHW parameter (systems Anl 2, 4, 5 and 10). In the transition  
time or in summer mode, the heating circuit can be operated with a lower return flow tempera-  
ture while at the same time performing proper storage tank charging.  
The Return flow limitation temperature for DHW parameter can also be active in systems Anl 4,  
5, 7, 8, 9 and 10 at a separate return flow sensor. The separate sensor RüFTW (return flow sen-  
sor for DHW) must in this case be installed in the return flow of the DHW circuit.  
Note!  
In system Anl 2 , the sensor RüFprim is installed in the return flow of the primary circuit. In this  
case, the Return flow sensor, primary function must be activated (Co5 -> Fb01 = ON).  
Function  
WE  
Configuration  
Return flow sensor in DHW circuit  
OFF  
1.0  
Co4 -> Fb02 = ON  
Limitation factor / 0 to 25.5  
Parameter  
WE  
Parameter level / Range of values  
Return flow limitation temperature for DHW  
45 °C PA4 / 20 to 90 °C  
Note!  
To ensure that the preset return flow temperature limit can be met, make sure that  
– the heating characteristic is not adjusted to ascend too steeply,  
– the speed of the circulation pumps is not set too high,  
– the heating systems have been calibrated.  
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System-wide functions  
7.5 Condensate accumulation control  
Activate the Condensate accumulation control function to start up condensate accumulation  
plants, in particular to avoid problematic excess temperatures. The controller response to set  
point deviations which cause the primary valve to open is attenuated. The controller response to  
set point deviations which cause the control valve to close remains unaffected.  
In systems Anl 6 and 9, the limitation applies to all control valves; in all other systems, it applies  
to the control valve with the highest flow temperature set point.  
In systems with DHW heating on the primary side (Anl 7 and 8), the Condensate accumulation  
control function must configured separately under Co4.  
Functions  
WE  
Configuration  
Condensate accumulation control OFF  
2 °C  
Co5 -> Fb07 = ON  
Maximum system deviation / 2 to 10 °C  
Condensate accumulation control  
Co4 -> Fb13 = ON  
(Anl 7 and 8)  
2 °C  
Maximum system deviation / 2 to 10 °C  
Note!  
The condensate accumulation control function can only be activated when no on/off control has  
been configured, i.e. Co5 -> Fb14 = ON.  
7.6 Compensating for time delays  
The controller regulates the control circuit with the highest flow set point with the secondary flow  
sensor. If the sensor is placed on the secondary side directly downstream of the heat exchanger  
and the setting Co5 -> Fb06 = ON configured, any time delays due to changes in temperature  
at a distant flow sensor do not occur anymore. This measure used with a condensate accumula-  
tion control means that the control can intervene before the control valve releases  
unproportionally too much heat exchanger area.  
Functions  
WE  
ON  
OFF  
Configuration  
Flow sensor, secondary VFsek  
Compensation of time delays  
Co5 -> Fb00 = ON  
Co5 -> Fb06 = ON  
EB 5179 EN 61  
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System-wide functions  
7.7 Three-step control  
The flow temperature can be controlled using a PI algorithm. The valve reacts to pulses that the  
controller emits when a system deviation occurs. The length of the first pulse, in particular, de-  
pends on the extent of the system deviation and the selected Proportional gain KP (the pulse  
length increases as KP increases). The pulse and pause lengths change continuously until the  
system deviation has been eliminated. The pause length between the single pulses is greatly in-  
fluenced by the Reset time TN (the pause length increases as TN increases).  
The Transit time TY specifies the time required by the valve to travel through the range of 0 to  
100 %.  
The three-step control can be configured separately for individual heating circuits, for the DHW  
heating and for the pre-control circuit.  
Functions  
WE  
ON  
0.5  
Configuration  
Three-step control  
for heating circuit  
Co1, 2, 3 -> Fb15 = ON  
KP (proportional gain) / 0.1 to 50.0  
200 s  
120 s  
240 s  
TN (reset time) / 1 to 999 s  
TY (transit time) / 15, 30, …, 240 s  
UP lag time / 120 to 1200 s  
Three-step control  
for DHW heating  
ON  
0.5  
Co4 -> Fb09 = ON  
KP (proportional gain) / 0.1 to 50.0  
200 s  
120 s  
TN (reset time) / 1 to 999 s  
TY (transit time) / 15, 30, …, 120 s  
Three-step control  
ON  
Co5 -> Fb14 = ON  
for pre-control circuit  
0.5  
KP (proportional gain) / 0.1 to 50.0  
200 s  
120 s  
T
N (reset time) / 1 to 999 s  
TY (transit time) / 15, 30, …, 240 s  
No further pulses are issued at the three-step outputs when the control signal deactivation func-  
tion is activated when the total of the timing pulses (uninterrupted in one direction) is larger than  
three times the control valve transit time TY. In this case, it can be assumed that the control valve  
is either completely open or completely closed; other signals do not cause any changes in the  
control valve.  
Function  
WE  
Configuration  
Control signal deactivation  
OFF  
Co5 -> Fb18 = ON  
62 EB 5179 EN  
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System-wide functions  
7.8 On/off control  
The flow temperature can be controlled by an on/off signal. The controlled valve is opened  
when the flow temperature falls below the set point by T = 0.5 x Hysteresis. When the flow tem-  
perature exceeds the set point by T = 0.5 x Hysteresis, the control valve is closed. The greater the  
Hysteresis selected, the lower the switching frequency. The UP lag time parameter indicates the  
time span which the circulation pump continues to run after the control valve is closed (the pa-  
rameter only needs to be set for the heating circuits HK1, HK2 and HK3).  
By entering Minimum activation time, a burner once switched on remains switched on for the  
time entered, regardless of how the temperature develops. Likewise, a burner that has been  
switched off due to the temperatures remains switched off for the time entered in Minimum de-  
activation time.  
The on/off control can be configured separately for the individual heating circuits and for the  
pre-control circuit.  
Functions  
WE  
ON  
5 °C  
Configuration  
Three-step control  
for heating circuit  
Co1, 2, 3 -> Fb15 = OFF  
Hysteresis / 1 to 30 °C  
120 s  
120 s  
240 s  
Minimum activation time / 0 to 600 s  
Minimum deactivation time / 0 to 600 s  
UP lag time / 120 to 1200 s  
Three-step control  
ON  
Co5 -> Fb14 = OFF  
for pre-control circuit  
5 °C  
Hysteresis / 1 to 30 °C  
120 s  
120 s  
Minimum activation time / 0 to 600 s  
Minimum deactivation time / 0 to 600 s  
7.9 Continuous-action control  
The flow temperature can be controlled using a PID algorithm. The valve receives an analog 0 to  
10 V signal issued by the controller. The proportional-action component causes an immediate  
change in the 0 to 10 V signal when a system deviation arises (the larger the KP, the greater the  
change). The integral-action component first affects the control after a certain time: TN stands  
for the time that passes until the I-action component has changed the output signal so far as the  
P-action component just did (the larger the TN, the slower the rate in change). The D-action com-  
ponent causes every change in system deviation to have any increased effect on the output sig-  
nal (the larger the TV, the more intensified the change).  
The continuous-action control can be configured separately for individual heating circuits, for  
the DHW heating and for the pre-control circuit.  
EB 5179 EN 63  
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System-wide functions  
Functions  
WE  
Configuration  
Continuous-action control for heating circuit  
OFF  
0.5  
Co1, 2, 3 -> Fb14 = ON  
KP (gain) / 0.1 to 50.0  
200 s  
0 s  
TN (reset time) / 1 to 999 s  
TV (derivative-action time) / 0 to 999 s  
Continuous-action control for DHW heating  
OFF  
Co4 -> Fb14 = ON  
0.5  
200 s  
0 s  
KP (gain) / 0.1 to 50.0  
TN (reset time) / 1 to 999 s  
TV (derivative-action time) / 0 to 999 s  
Continuous-action control for pre-control circuit OFF  
0.5  
Co5 -> Fb19 = ON  
KP (gain) / 0.1 to 50.0  
200 s  
T
N (reset time) / 1 to 999 s  
0 s  
TV (derivative-action time) / 0 to 999 s  
7.10 Forwarding the outdoor temperature  
The outdoor temperature can be passed on over the analog output AA (0 to 10 V, terminal 11)  
(0 to 10 V corresponding with –40 to 50 °C outdoor temperature).  
Function  
WE  
Configuration  
Outdoor temperature passed on over AA  
OFF  
Co5 -> Fb15 = ON  
7.11 Flow rate/capacity limitation over a pulse input  
Flow rate/capacity limitation can be implemented based on a pulse signal.  
There are three different operating situations:  
4 A system with simultaneous room heating and DHW heating requires maximum energy.  
4 A system with a fully charged storage tank which performs only room heating requires less  
energy.  
4 A system which suspends room heating during DHW heating requires less energy.  
As a result, three different maximum limit values can be specified:  
4 Max. limit value to determine the absolute upper limit  
4 Max. limit value for heating for exclusive operation of the room heating  
4 Max. limit value for DHW for exclusive operation of the DHW heating  
In all systems without DHW heating, only the Max. limit value for the flow rate or capacity can  
be set.  
64 EB 5179 EN  
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System-wide functions  
A heat meter with pulse output connected at input Vmax (terminal 30) can be used either to limit  
the system flow rate (parameter code: U) or the system capacity (parameter code: P). The pulse  
weighting of the heat meter (WMZ) and the type of limitation selected must be entered. The dis-  
played value corresponds to the unit l/pulse or kWh/pulse.  
When the pulse rate reaches the current maximum limit, the flow set point of the control circuit  
RK1 is reduced. How strongly the controller responds is determined by the Proportional-action  
coefficient for limitation.  
Example to determine the limit value:  
If a capacity of 30 kW is to be limited, the following limit value must be set for a heat meter with  
an output of one pulse per kilowatt-hour:  
30 kW  
1 KWh / pulse  
P =  
=30 pulse / h  
Settings for capacity limitation  
Functions  
WE  
Configuration  
Limitation of heat meter (WMZ)  
OFF  
OFF  
Co5 -> Fb08 = OFF  
Pulse input for flow rate or capacity limitation  
Co5 -> Fb09 = ON, select: P  
CONST:  
4-Pt:  
Limitation constant  
Limitation acc. to  
4-point characteristic  
10  
Pulse weighting / 0.1 to 10  
Parameters  
WE  
Parameter level / Range of values  
PA5 / 0.1 to 5999 kW  
PA5 / 0.1 to 5999 kW  
PA5 / 0.1 to 10  
Maximum capacity of the entire system  
Maximum capacity of the DHW heating  
Proportional-action coefficient for the limitation  
Select CONST additionally for:  
Maximum capacity of the heating  
Select 4-Pt additionally for:  
50 kW  
50 kW  
1.0  
50 kW  
PA5 / 0.1 to 5999 kW  
PA5 /–30 to 90 °C  
Outdoor temperature Point 1  
–15 °C  
– 5 °C  
5 °C  
Point 2  
Point 3  
Point 4  
15 °C  
Maximum capacity limitation, points 1 to 4  
50 kW  
PA5 / 0.1 to 5999 kW  
EB 5179 EN 65  
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System-wide functions  
Settings for flow rate limitation  
Functions  
WE  
OFF  
OFF  
Configuration  
Limitation of heat meter (WMZ)  
Pulse input for flow rate or capacity limitation  
Co5 -> Fb08 = OFF  
Co5 -> Fb09 = ON, select: U  
CONST:  
4-Pt:  
Limitation constant  
Limitation acc. to  
4-point characteristic  
10  
Pulse weighting / 0.1 to 10  
Parameters  
WE  
Parameter level / Range of values  
PA5 / 0.01 to 99.9 m3/h  
PA5 / 0.01 to 99.9 m3/h  
PA5 / 0.1 to 10  
Maximum flow rate of the entire system  
Maximum flow rate of the DHW heating  
Proportional-action coefficient for the limitation  
Select CONST additionally for:  
Maximum flow rate of the heating  
Select 4-Pt additionally for:  
9 m3/h  
9 m3/h  
1.0  
9 m3/h  
PA5 / 0.01 to 99.9 m3/h  
PA5 /–30 to 90 °C  
Outdoor temperature Point 1  
–15 °C  
– 5 °C  
5 °C  
Point 2  
Point 3  
Point 4  
15 °C  
Maximum flow rate limitation, points 1 to 4  
9 m3/h  
PA5 / 0.01 to 99.9 m3/h  
A second pulse counter can be connected at terminal 29. The pulses entered are stored in the  
holding registers 40031 (low byte) and 40032 (high byte). The associated duration on the  
holding registers 40035 (low byte) and 40036 (high byte). First, the low byte counts upwards  
(0 to 65535). If several pulses arrive, the counting value is formed by multiplying the low byte  
with the high byte (32-bit value).  
7.12 Locking manual level  
To protect the heating system, this function can be used to lock manual level. When this function  
has been activated, automatic mode is started when the rotary switch is set to +, or 0.  
Function  
WE  
Configuration  
Locking manual levels  
OFF  
Co5 -> Fb10 = ON  
66 EB 5179 EN  
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Operational faults  
8
Operational faults  
Malfunctions or faults are indicated by the  
icon blinking on the display. Error immediately  
appears on the display. Press the enter key to open the error level. It may be possible to view  
several error alarms by pressing the enter key. As long as an error alarm is present, the error  
level appears in the display loop, even though it has not been opened by pressing the enter key.  
In the error level, the controller indicates a defective sensor by displaying the corresponding  
sensor combination. A fault is displayed as specified in the list below.  
8.1 Error list/sensor failure  
Sensor broken in RK1 (in connection with the corresponding sensor icon)  
Sensor broken in RK2 (in connection with the corresponding sensor icon)  
Sensor broken in RK3 (in connection with the corresponding sensor icon)  
Sensor broken in DHW circuit (in connection with the sensor icon)  
Sensor broken in primary circuit (in connection with the sensor icon)  
4 ERR 1  
4 ERR 2  
4 ERR 3  
4 ERR 4  
4 ERR 5  
4 ERR -1 Standard data entered again (default settings)  
4 ERR -2 Final temperature of the thermal disinfection not reached  
4 ERR -3 Mode selector switch 1 defective  
4 ERR -4 Mode selector switch 2 defective  
4 ERR -5 Mode selector switch 3 defective  
4 ERR 10 Temperature limitation of DHW heat exchanger active  
In the error level, ERR1 to ERR5 on the display indicates the sensor failures as per the error list.  
Detailed information over a sensor failure can be retrieved within the information level by poll-  
ing individual temperatures: each sensor icon displayed together with – – – – indicates a defec-  
tive sensor. The following list explains how the controller responds to the failure of the different  
sensors.  
4 Outdoor sensors AF: When the outdoor sensor fails, the controller uses a flow temperature  
set point of 50 °C or the Max. flow temperature (when the Max. flow temperature is smaller  
than 50 °C).  
4 Flow sensor VF: When the flow sensor is defective, the controller continues to work with the  
valve in the last position.  
4 Flow sensor in the DHW heat exchanger VFT: The DHW control valve is closed when the  
sensor fails.  
4 Flow sensor in the DHW storage tank VFS: The flow set point for the DHW heat exchanger  
is only controlled with VFT. The display blinks.  
4 Return sensor RüF: When the return flow sensor is defective, the controller continues to work  
without the return flow temperature limitation function.  
EB 5179 EN 67  
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Operational faults  
4 Room sensor RF: Upon failure of the room sensor, the controller functions according to the  
settings for operation without a room sensor. For example, optimized operation is switched  
over to reduced operation. Adaptation operation is interrupted. The last determined heating  
characteristic is not changed anymore.  
4 Storage tank sensors SF1 and SF2: Upon failure of one of these sensors, the storage tank is  
not charged anymore.  
Sensor breakage status  
In InF7 and InF8 levels, it is possible to see which sensor does not function properly. The status of  
the sensors is shown over function blocks together with the string bruch. A function block is as-  
signed to each sensor and is set when the sensor data input is incorrect after one minute.  
4 InF7 (only with Co7 -> Fb05 = ON): Error status display of the recognized LON controller  
and its sensor breakage status, for example  
7403b = TROVIS 5174 Controller, sensor breakage bit 03  
7919b = TROVIS 5179 Controller, sensor breakage bit 19  
The relationship between the set bit and the associated sensor can be found in the Mounting  
and Operating Instructions (EB) of the recognized LON controller.  
4 InF8: Sensor breakage status display of the sensor belonging to the controller. The set bits  
remain visible in the case of failure for at least one minute ( appears on the right-hand side  
of the set bit number, see page 69).  
When an SMS text message alarm or fax alarm is issued (see sections 8.6 and 8.7) Fuehl ap-  
pears on the display next to the status of the connected sensors. One “o” appears for every  
working sensor and one “F” for every defective sensor. The sequence is the same as the set bits  
on page 69.  
4 Example: “Fuehl:oFoFFooooooooooooooooo” = Defective resistor inputs 1, 3 and 4 (return  
flow sensor RüF1, room sensor RF1 and flow sensor VF1)  
8.2 Collective error alarm  
Should an error occur in the controller, it can be indicated over binary output BA4.  
BA4 is activated when the error status register does not equal 0. BA4 is a DC voltage output in  
an open collector circuit and may only be loaded with 24 V/10 mA at the maximum. If the Col-  
lective error alarm function is active, BA4 is no longer available for pump management.  
Function  
WE  
Configuration  
Potentiometer in pre-control circuit  
OFF  
Co5 -> Fb16 = ON  
68 EB 5179 EN  
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Operational faults  
Sensor breakage status:  
Number = Bit no. in HR  
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22  
Flow sensor VF1  
Return flow sensor RüF1  
Outdoor sensor AF1  
Room sensor RF1  
Flow sensor VF2  
Return flow sensor RüF2  
Outdoor sensor AF2  
Room sensor RF2  
Flow sensor VF3  
Return flow sensor RüF3  
Outdoor sensor AF3  
Room sensor RF3  
Pot. input FG1  
(not monitored)  
Pot. input FG2  
(not monitored)  
Pot. input FG3  
(not monitored)  
Flow sensor VFprim  
Return flow sensor RüFprim  
Flow sensor VFT  
Return flow sensor RüFTW  
Storage sensor SF1  
Storage sensor SF2  
Flow sensor VFS  
Flow rate  
(not monitored)  
EB 5179 EN 69  
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Operational faults  
8.3 Temperature monitoring  
The flow temperature and the room temperature can be monitored for any deviations. This func-  
tion is activated in Co5 -> Fb20. The controller issues an alarm when:  
4 the flow temperature deviates from its set point by more than 10 °C for more than 30  
minutes  
4 the room temperature falls below its set point by 2 °C for more than 30 minutes  
4 the return flow temperature limitation is active for more than 30 minutes.  
When one of these conditions occurs, the bit for the associated sensor is set in holding regis-  
ter 857. A set bit in holding register HR 857 causes the bit 4 to be set in the error status register  
FSR2 (HR 61) and in the error archive register 2 (HR 63) and the error counter (HR 64) is incre-  
mented.  
Function  
WE  
Configuration  
Temperature monitoring  
OFF  
Co5 -> Fb20 = ON  
Holding register 857 ( appears on the right-hand side of the set bit number)  
Number = Bit number in HR  
0 1  
2
3
4
5
6
7
8
9
10 11 12  
VFprim:  
Measured value (set point + 10 °C)  
RüFprim:  
Limitation active  
(actual return flow blinks in InF5)  
VF1:  
Meas. value > (set point +10 °C)  
Limitation active  
RüF1:  
RF1:  
Meas. value < (set point – 2 °C)  
Meas. value > (set point + 10 °C)  
Limitation active  
VF2:  
RüF2:  
RF2:  
Meas. value < (set point – 2 °C)  
Meas. value > (set point + 10 °C)  
Limitation active  
VF3:  
RüF3:  
RF3:  
Meas. value < (set point – 2 °C)  
Meas. value > (set point + 10 °C)  
VFTW:  
RüFTW:  
Limitation active  
(actual return flow blinks in InF4)  
70 EB 5179 EN  
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Operational faults  
8.4 Monitoring the input terminals for limit violations  
The controller provides the option to apply limits (in % of measuring range) to two selected in-  
puts (temperature sensor or analog inputs) and to issue an alert to a higher-level control system  
by writing in the error status register. Directly after setting the function block, select the terminal  
that is to be monitored and the condition that triggers the alarm according to the following  
codes:  
4 Alarm when upper limit is exceeded (OGW)  
Lower limit: 0 %  
Upper limit: Any  
4 Alarm when bottom limit is not reached (UGW)  
Lower limit: Any  
Upper limit: 100 %  
4 Alarm when the limits is exceeded or not reached  
Lower limit: > 0 % < OGW  
Upper limit: > UGW < 100 %  
4 Alarm ON, when UGW is exceeded and alarm OFF when OGW is not reached  
Lower limit: > OGW < 100 %  
Upper limit: > 0 % < UGW  
Input to which temperature sensors are connected have readings in °C (measuring range from  
–30 to 160 °C); analog input readings are shown in % of the measuring range.  
In systems Anl 1, 3, 4, 6, 7 and 10, the limit alarm is made with “BA EIN“ over an analog relay.  
A make contact or break contact function can be assigned to the relay by selecting “STEIG“ (=  
rising signal edge) and “FALL“ (= negative signal edge) respectively. The limit alarm also ap-  
pears in the error status register by selecting “Fsr-E”.  
Note!  
The associated binary output is marked in the wiring plan with GWx and GWy and depends on  
the system code number (Anl).  
Function  
WE  
Configuration  
Limit monitoring at terminal  
x, y  
Co5 -> Fb11, 12 = ON  
Terminal number  
Upper/lower limit  
Signal edge, binary output  
FSr-A/FSr-E: Status alarm to error status register ON/OFF  
BA EIN/BA AUS: Setting/not setting the binary input  
FALL/steig: Negative signal edge/increasing signal edge  
EB 5179 EN 71  
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Operational faults  
8.5 Error status register  
The HR 60 and HR 61 error status registers (holding register - 16-bit) are used to indicate con-  
troller or system errors. HR 60 contains general alarms, whereas special faults are entered in  
HR 61. In modem mode (Co9 -> Fb01 = ON), the change in state of HR 60 or HR 61 causes the  
controller to dial the control system.  
In InF8 level the bits of the error status register are displayed:  
4 FSR1 (general error):  
The corresponding block at the top is set for every bit set  
4 FSR2 (special error):  
by pressing  
key, the set bits are displayed similar to FSr1  
In both cases, the blocks 20 to 23 are visible when a bit is set in another error status register  
(which is currently not visible) to make it immediately recognizable whether one of the maxi-  
mum 32 error flags has been set.  
Holding register 60 (A set bit is indicated by on the right of number):  
Number = Bit no. in HR  
0 1  
2
3
4
5
6
7
8
9
10 11  
Bit value  
20 21 22 23 24 25 26 27 28 29 210 211  
Sensor breakage  
Default values read  
D0  
D1  
D2  
D3  
D4  
D5  
D6  
D7  
Mode switch RK1 faulty  
Mode switch RK2 faulty  
Mode switch RK3 faulty  
Unauthorized access  
Error alarm of a BE  
WMZ error alarm issued to D8  
meter bus  
WMZ error alarm issued  
D9  
D10  
D11  
Fault alarm binary output  
changed  
72 EB 5179 EN  
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Operational faults  
Example of a transfer to the control system:  
The error status register is transferred as a word <w> in a holding register (HR) whose value is  
calculated as follows:  
<w> = ([D0] x <1> + [D1] x <2> ) +...+ ([D11] x <2048>)  
Holding register 61 (A set bit is indicated by on the right of number):  
Number = Bit no. in HR  
0 1  
2
3
4
5
6
7
8
9
10 11 12 13 14 15  
Bit value  
20 21 22 23 24 25 26 27 28 29 210 211 212 213 214 215  
Thermal disinfection  
D0  
Limit at terminal x active  
D1  
Limit at terminal y active  
D2  
VFmax at DHW exchanger  
D3  
Temperature monitoring  
D4  
D5  
D6  
D7  
D8  
D9  
D10  
D11  
D12  
D13  
D14  
D15  
Extended  
limit monitoring  
(D8 to D15)  
8.6 Error alarms  
Error alarms can be sent over a modem either directly to the control station or over the SMS text  
message function to a mobile phone or to a fax. Just one function (Modbus, SMS function or fax  
function) can be selected at one time since the functions use the same interface. The error alarms  
to a mobile phone and to a fax contain the number of the affected error status register (FSR1),  
the fault as per error status register (BitNo), the controller ID and the bit number (Bit xx).  
EB 5179 EN 73  
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Operational faults  
8.6.1 Sending text message in case of a fault alarm  
Currently, text messages can only be sent to the German D1 network. The corresponding access  
numbers into the D1 network as well as the mobile phone number of the recipient must be set in  
the PA9 level:  
4 D1 access number: 0171 252 10 02  
(add 0 in front when dialing from a private branch exchange)  
Digits 0 to 9, P = pause, - = end, max. 22 characters  
The access number is assigned by Deutsche Telekom and may alter.  
4 Mobile phone number: 49 xxx yyyyyyy , where xxx stands for 160, 171 or any other valid  
D1 dialing code and yyyyyy represents the specific phone number of the mobile phone you  
wish the alarm to be sent to.  
Digits 0 to 9, P = pause, - = end, max. 14 characters  
Note! Currently, text messages can only be sent to the German D1 network.  
Functions  
WE  
Configuration  
Modbus  
ON  
OFF  
OFF  
OFF  
OFF  
Co9 -> Fb00 = OFF  
Co9 -> Fb01 = OFF  
Co9 -> Fb06 = ON  
Co9 -> Fb07  
Modem  
Text message via SMS  
SMS dialing procedure  
Alarm sent per fax  
Co9 -> Fb10 = OFF  
Parameters  
WE  
Parameter level / Range of values  
PA9 / configurable as required*  
PA9 / configurable as required**  
Access number (UGno)  
Mobile phone number (HAndY)  
*
Digits 0 to 9, P = pause, - = end, max. 14 characters  
** Digits 0 to 9, P = pause, - = end, max. 22 characters  
8.6.2 Sending fax in case of a fault alarm  
The device type is forwarded in addition to a detailed error description. The recipient’s fax  
number must be programmed in the PA9 level. Optionally, also the sender’s station ID can be  
programmed; this number will then be forwarded as well. If no station ID is specified, the string  
“nicht verfügbar“ (not available) is inserted.  
4 Fax number: Digits 0 to 9, o = Pause, - = end, max. 14 characters  
(place an additional 0 in front when dialing from a private branch exchange)  
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Operational faults  
4 Station ID: Digits 0 to 9, P = pause, - = end, max. 14 characters  
Functions  
WE  
Configuration  
Modbus  
ON  
OFF  
OFF  
OFF  
OFF  
Co9 -> Fb00 = OFF  
Co9 -> Fb01 = OFF  
Co9 -> Fb06 = OFF  
Co9 -> Fb10 = ON  
Co9 -> Fb11  
Modem  
Alarm sent as text message  
Alarm sent per fax  
Fax dialing procedure  
Parameters  
WE  
Parameter level / Range of values  
PA9 / configurable as required*  
PA9 / configurable as required*  
Fax number (tELno)  
Station ID (St Id)  
*
Digits 0 to 9, P = pause, - = end, max. 14 characters  
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Communication  
9
Communication  
Using the serial system bus interface, the TROVIS 5179 District Heating Controller can commu-  
nicate with a building control system. In combination with a suitable software for process visual-  
ization and communication, a complete control system can be implemented.  
The following communication settings are possible:  
Operation with a dial-up modem at the RS-232-C system bus interface  
Basically, communication is only established automatically when errors occur. The controller  
works autonomously. Nevertheless, the modem can dial up to the controller at any time to read  
data from it or otherwise influence it, if necessary. We recommend to use the modem connect-  
ing cable (1400-7139).  
Operation with a leased line modem at the RS-232-C system bus interface  
Communication is established via a permanent connection between two leased line modems.  
This setup is applied for long-distance transmissions or when different signal level converters  
are used. The connection between controller and modem can also be established via the mo-  
dem connecting cable (1400-7139).  
Operation at a four-wire bus  
To establish the link between controller and bus line, the signal level needs to be converted by a  
converter (SAMSON’s cable converter 1400-7308).  
GLT  
RS232  
RS 232C  
RS 232C  
RS485  
RS 485  
RS232  
RS485  
TROVIS 5179  
TROVIS 5179  
RS232  
RS485  
Fig. 7 · Network structure  
The TROVIS 5179 District Heating Controller is fitted with a Modbus interface RS-232. Op-  
tionally, a cable converter for four-wire bus (1400-7308) is available.  
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Communication  
GND TD DTR DCD RD RTS  
Fig. 8 · Pin assignment of RJ-12 system bus interface  
9.1 RS-232-C system bus interface  
The system bus connection is located at the back of the controller housing (RJ-12 jack).  
In this case, the controller can be connected either directly to the serial interface of a PC  
(point-to-point connection) or to a (dial-up) modem. A dial-up modem is required if the control-  
ler is to be connected to the telecommunications network. In this case, the controller works au-  
tonomously and can issue an alarm call to the building control station when errors occur. Addi-  
tionally, the building control station can dial up the controller, read data from it, and send new  
data once the valid key number has been written to the holding register no. 40070.  
On recognizing the key code from the controller as valid, the register value “1” confirms writing  
permission. In any other case, the register value remains at “0”. Any further establishment of  
communications requires the writing permission to be acquired by resending the key number.  
Note!  
If a wrong key number has been written to holding register no. 40070 for the third consecutive  
time, the controller immediately interrupts the modem connection and sets the D6 bit of the error  
status register (Unauthorized access). As a result, the call to the configured control system is  
triggered or a text message/fax is sent. Bit D6 is deleted as soon as the error status register has  
been read by the control system and the connection has been terminated.  
In special cases, the Lock dial-up function can be selected to stop dial-up in case of faults. Using  
the Dial-up also upon corrected fault function, the controller additionally informs the building  
control station when a previously registered fault no longer persists.  
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Communication  
Functions  
WE  
Configuration  
Co9 -> Fb01 = ON  
Co9 -> Fb02  
Modem  
OFF  
OFF  
OFF  
OFF  
Modem dialing procedure  
Lock dial-up  
Co9 -> Fb03  
Dial-up also upon corrected fault  
Co8 -> Fb00  
Parameters*  
WE  
Parameter level / Range of values  
Station address (ST.-NR)  
255  
PA9 / 1 to 247  
(1 to 999 with Co9 -> Fb04 = ON)  
Baud rate (BAUD)  
9600 PA9 / 300 to 19200  
30 min PA9 / 0 to 255 min  
5 min PA9 / 1 to 255 min  
5 min PA9 / 1 to 255 min  
Cyclic initialization (I)  
Modem dial interval between calls (P)  
Modem timeout (t)  
Number of redial attempts (C)  
5
PA9 / 0 to 99  
Phone number of building control station  
(tELno)  
PA9 / Configurable as required**  
Phone number of alternative recipient  
(rESno)  
PA9 / Configurable as required**  
** Digits 0 to 9, P = Pause, - = End, max. 22 characters  
* –> Section 9.3 (“Description of communication parameters to be adjusted“)  
9.2 RS-232/RS-485 system bus interface (for four-wire bus) in combina-  
tion with cable converters  
A constant bus connection is required (data cable) for operation of the district heating controller  
in conjunction with cable converters. The bus line is routed to the individual control instruments  
in an open ring. At the end of the bus line, the data cable is connected to the control station us-  
ing an RS-485/RS-232 converter (e.g. TROVIS 5484). The maximum range of the bus connec-  
tion (cable length) is 1,200 meters. A maximum of 32 devices can be connected to such a seg-  
ment. If you wish to use more than 32 devices in line or need to bridge greater distances, make  
sure repeaters (e.g. TROVIS 5482) are installed to replicate the signal. With 8-bit addressing, a  
maximum of 246 devices can be addressed and connected to a bus.  
!
Warning!  
You are required to follow the relevant standards and regulations concerning lightning and  
overvoltage protection on installation.  
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Communication  
Functions  
WE  
ON  
OFF  
OFF  
Configuration  
Modbus  
Co9 -> Fb00 = ON  
Co9 -> Fb01 = OFF  
Co9 -> Fb04  
Modem  
Modbus 16-bit addressing  
Parameters*  
WE  
Parameter level / Range of values  
Station address (ST.-NR)  
Baud rate (BAUD)  
255  
PA9 / 1 to 247 (1 to 999 with Co9 -> Fb04 = ON)  
9600 PA9 / 300 to 19200  
* –> Section 9.3 (“Description of communication parameters to be adjusted“)  
9.3 Description of communication parameters to be adjusted  
Station address (ST.-NR)  
This address is used to identify the district heating controller in bus or modem mode. In a system,  
each controller needs to be assigned a unique address.  
Baud rate (BAUD)  
In a bus system, the baud rate refers to the transfer speed between control system and district  
heating controller. In modem mode, baud rate refers to the transfer speed between district heat-  
ing controller and modem.  
The baud rate adjusted at the district heating controller must correspond with the baud rate of  
the control system, otherwise communication cannot be established.  
Cyclic initialization (I)  
This parameter defines the period of time for a cyclical issue of the initialization command  
“ATZ“. The command is not issued during dial-up or when connected. “ATZ“ causes the con-  
figuration profile 0 to be copied to the active profile, provided the modem parameters have  
been set and saved in profile 0 using a suitable terminal program.  
Typical initialization of a modem with a terminal program:  
AT & F  
OK  
(restores modem to its factory settings)  
(response of the modem)  
ATEOSO = 1 (command input, EO: echo off;  
SO = 1: answer on first ring)  
Modem dialing pause (P)  
It is recommended to observe an interval of approx. 3 to 5 minutes between dialing up to the  
control system/or sending a text message or fax to avoid a permanent overloading of the (tele-  
communications) network. The modem dialing pause is the interval between two dialing at-  
tempts.  
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Communication  
Modem timeout (t)  
When the controller connects to the GLT but without addressing a Modbus data point, the con-  
nection is closed after the time specified for Modem time-out has elapsed. If the error status reg-  
ister has not been read during the GLT connection, the controller dials up to the GLT again after  
the Modem dialing pause (P) has elapsed.  
Number of redialing attempts (C)  
The controller tries to dial up to the control system again, observing the Modem dialing pause,  
in case the control station/text messaging center/fax is busy or the function that triggered the  
call has not been reset by the controller. After the specified number of redialing attempts have  
failed, the district heating controller dials up the alternative recipient.  
Resetting of triggered call = Reading the error status register (HR 40060)  
Phone number of control station (tELno)  
Enter the phone number of the control system modem including the dialing code, if necessary.  
Short pauses between the numbers can be entered using P (= 1 second); the end of the string is  
to be marked by “–“. The phone number may include a maximum of 22 characters.  
Example: “069, 2 sec. pause, 4009, 1 sec. pause, 0“:  
0 6 9 P P 4 0 0 9 P 0 – (= 11 characters)  
Phone number of the alternative recipient (rESno)  
Enter the phone number of the alternative recipient including the dialing code, if necessary.  
Short pauses between the numbers can be entered using P (= 1 second); the end of the string is  
to be marked by “–“. The phone number may include a maximum of 22 characters.  
Example: “069, 1 sec. pause, 654321“: 0 6 9 P 6 5 4 3 2 1 – (= 10 characters)  
Common modem settings are:  
- Echo off  
4 EO  
4 QO  
4 X3  
4 % CO  
4 \ N1  
4 V1  
- Enable result codes  
- Dial without checking for dial tone  
- Data compression off  
- Buffer off, fault correction off  
- Result codes in text format  
- Baud rate 9600  
4 % B 9600  
4 \ VO  
- Standard connect result codes  
Resetting to default settings  
A modem can be reset to its default settings directly at the controller using the key number.  
Key number  
Command  
44  
45  
AT&F&W <CR> <LF>  
AT&F&W ATX3 <CR> <LF> (for branch exchange systems)  
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Communication  
Note!  
The initialization settings described here are indispensable for operation on a dial-up modem.  
Nevertheless, it cannot be guaranteed that data are transferred after the initialization settings  
have been adjusted. Due to the broad range of modems available on the market and the differ-  
ent commands, refer to the operating manual of the modem for further details.  
9.4 Meter bus interface  
The district heating controller can communicate with up to 3 heat and water meters according to  
EN 1434-3.  
Details on the use of the different heat or water meters can be found in the technical documenta-  
tion TV-SK 6311.  
9.4.1 Activating the meter bus  
To successfully transfer data from the heat meter (WMZ) to the district heating controller, the  
heat meter must use a standardized protocol in accordance with EN 1434-3. It is not possible to  
make a general statement about which specific data can be accessed in each meter. For details  
on the different meter makes, refer to the technical documentation TV-SK 6311. All necessary  
function block parameters to set up the communication with heat or water meters are available  
in Co9 -> Fb21 to Fb23. The meter bus address, model code and reading mode need to be set  
in sequence. A meter bus address must be unique and correspond with the address preset in the  
WMZ.  
If the preset meter bus address is unknown, a single heat meter connected to the controller can  
be assigned the meter bus address 254. The address 255 deactivates the communication with  
the respective WMZ. The model code to be set for the heat meter can be found in TV-SK 6311.  
In general, the default setting of 1434 can be used for most devices.  
The meters can be read either automatically approx. every 24 hours (24h), continuously (con) or  
when the coils (= Modbus data points) assigned to the heat meters WMZ1 to WMZ3 are overwrit-  
ten with the value 1 (CoiL) via the system bus interface.  
In InF9 info level, “1434“ is displayed when the meter bus is activated. Press the enter key to get  
to the display referring to the meter bus. For each of the three heat meters whose address is  
not 255, “buSi“ (with i = 1, 2, 3) is indicated. Press the enter key again to display the following  
information about the associated meter:  
4 Flow rate (d, cm/h)  
Total capacity (U, cm3)  
4
4 Capacity (P, kW)  
4 Energy (A, MWh, GJ)  
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Communication  
4 Flow temperature (b, °C)  
4 Return flow temperature (b, °C)  
4 Meter identification number (L without enter key, H with enter key)  
4 Meter bus address (sent by WMZ) (A, –)  
Blinking values in combination with black squares in the top row of the display (fault status of  
the associated meter –> TV-SK 6311) indicate different faults.  
Note!  
With reading mode “24h“, the displayed values are not updated by opening the “buS1” to  
“buS3” levels again; the values read during the last cycle remain unchanged.  
With reading mode “con“, the values in the levels are not continuously updated. Reopen the  
specific level to get current values.  
Functions  
WE  
Configuration  
Meter bus 1, 2, 3  
OFF  
Co9 -> Fb21 = ON, Fb22 = ON, Fb23 = ON  
255  
1434  
con  
Meter bus address for WMZ 1, 2, 3 / 0 to 255  
Model code WMZ 1, 2, 3 / P15, PS2, 1434, CAL3, APAtO, SLS  
Reading mode WMZ 1, 2, 3 / 24h, con, CoiL  
Limitation of WMZ  
OFF  
Co5 -> Fb08 = ON  
---:  
U:  
P:  
No limitation  
Flow rate limitation  
Capacity limitation  
U-P:  
Flow rate and capacity limitation  
by selecting “U“, “P“ or “U-P“ in addition:  
CONST:  
4-Pt:  
Limitation parameter constant  
Limitation acc. to 4-point characteristic,  
outdoor temperature dependent  
9.4.2 Flow rate/capacity limitation using meter bus  
Flow rate and/or capacity limitation with the aid of the connected meter bus can be imple-  
mented by selecting the type of limitation 2, 3 or 4. The update rate of the measured variable,  
flow rate and/or capacity, must be smaller than 5 seconds in meter bus operation to carry out a  
proper limitation. Refer to the technical documentation TV-SK 6311 for details on which listed  
heat meters fulfill this criterion and can be used for limitation purposes. In case of battery-oper-  
ated heat meters in particular, please note that some makes react with communication intervals  
if they are polled too frequently. Other makes could use up their batteries too quickly. The tech-  
nical documentation TV-SK 6311 provides more details on these matters.  
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Communication  
4 A system with simultaneous room heating and DHW heating requires maximum energy.  
4 A system with a fully charged storage tank which performs only room heating requires less  
energy.  
4 A system which suspends room heating during DHW heating requires less energy.  
As a result, three different maximum limit values can be specified:  
4 Max. limit value to determine the absolute upper limit  
4 Max. limit value for heating for exclusive operation of the room heating  
4 Max. limit value for DHW for exclusive operation of the DHW heating  
In all systems without DHW heating or without heating circuit, only the Max. limit value for the  
flow rate or capacity can be set.  
Capacity limitation  
Parameters  
WE  
Parameter level / Range of values  
PA5 / 0.1 to 5999 kW  
PA5 / 0.1 to 5999 kW  
PA5 / 0.1 to 10  
Maximum capacity of the entire system  
Maximum capacity of the DHW heating  
Proportional-action coefficient for limitation  
By selecting “CONST“ additionally  
Maximum capacity of the heating  
By selecting “4-Pt“ additionally  
50 kW  
50 kW  
1.0  
50 kW  
PA5 / 0.1 to 5999 kW  
PA5 /–30 to 90 °C  
Outdoor temperature Point 1  
–15 °C  
– 5 °C  
5 °C  
Point 2  
Point 3  
Point 4  
15 °C  
Maximum limit of capacity, points 1 to 4  
50 kW  
PA5 / 0.1 to 5999 kW  
Flow rate capacity  
Parameters  
WE  
Parameter level / Range of values  
PA5 / 0.01 to 99.9 m3/h  
PA5 / 0.01 to 99.9 m3/h  
PA5 / 0.1 to 10  
Maximum flow rate of the entire system  
Maximum flow rate of the DHW heating  
Proportional-action coefficient for limitation  
By selecting “CONST“ additionally  
Maximum flow rate of the heating  
By selecting “4-Pt“ additionally  
9 m3/h  
9 m3/h  
1.0  
9 m3/h  
PA5 / 0.01 to 99.9 m3/h  
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Communication  
Outdoor temperature Point 1  
–15 °C  
– 5 °C  
5 °C  
PA5 /–30 to 90 °C  
Point 2  
Point 3  
Point 4  
15 °C  
Maximum limit of flow rate, points 1 to 4  
9.5 LON communication  
Note!  
9 m3/h  
PA5 / 0.01 to 99.9 m3/h  
The following section only applies to devices with LON interface and CO7 -> Fb00 = ON.  
On connecting LONMARK devices, CO7 -> Fb00 = OFF needs to be configured.  
Each controller is assigned a LON station address, which needs to be set in the PA7 parameter  
level. A station address in a subnet must be unique. Each controller type is assigned its own  
subnet. This means that identical LON station addresses can be assigned for different controller  
types, e.g. 5174 and 5179, as they belong to different subnets. A maximum of 59 participants  
consisting of TROVIS 5171, 5174, 5177 and 5179 can be connected together.  
Controller type  
TROVIS 5171  
TROVIS 5174  
TROVIS 5177  
TROVIS 5179  
Subnet  
Station address  
1 to 20  
1
4
7
9
1 to 20  
1 to 20  
1 to 20  
The controller sends its inputs and outputs as well as pulse counters and their pulse duration  
over the LON network to a TROVIS 5171 Programmable Logic Controller.  
The pulse inputs are sent after four minutes; the sensor temperatures when the temperature has  
changed by at least 1 °C or after four minutes at the latest. The analog inputs and outputs are  
sent when the signal level changes by 0.5 V. The binary inputs and outputs are sent after every  
change or after four minutes at the latest.  
In the InF7 level, all other TROVIS 5100 network participants are listed together with controller  
type and LON address (e.g. “74-01“). A communication fault exists when the display blinks.  
Function  
WE  
Configuration  
LON active  
OFF  
Co7 -> Fb00 = ON  
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Communication  
9.6 Requesting/processing an external demand  
Requesting an external demand  
The flow temperature set points can be passed on over the LON network in complex heating sys-  
tems. The external flow set point is compared with the controller’s own flow set point. The higher  
of the two flow set points is passed on.  
Functions  
WE  
Configuration  
External demand  
LON active  
OFF  
OFF  
OFF  
Co5 -> Fb13 = ON  
Co7 -> Fb00 = ON  
Co7 -> Fb01 = OFF  
Master controller  
Note!  
In systems Anl 6 and 9, the setting Co5 -> Fb00 = OFF must be configured for passing on the flow  
temperature set point. In all other systems, the setting Co5 -> Fb00 = ON must be configured.  
Processing an external demand  
The master controller receives the demand of connected controllers over the LON network and  
makes the required energy available for all the control circuits. The secondary flow sensor in-  
stalled directly downstream of the heat exchanger serves as the sensor for the primary valve.  
The Boost parameter improves the control performance of the connected heating circuit valves  
and compensates for any loss in capacity.  
If an internal heating circuit has the highest set point, the primary valve regulates the tempera-  
ture at the flow collector to the set point of the heating circuit plus Boost.  
The set point in the heating circuit is regulated by the mixing valve of the heating circuit. In InF5  
level, the set point of the primary valve appears on the display in this case.  
Note! In systems Anl 6 and 9, the external demand is only sent and not processed.  
Functions  
WE  
ON  
Configuration  
Flow sensor secondary VFsek  
External demand  
Co5 -> Fb00 = ON  
OFF  
0 °C  
Co5 -> Fb13 = ON  
Boost / 0 to 30 °C  
LON active  
OFF  
OFF  
Co7 -> Fb00 = ON  
Co7 -> Fb01 = ON  
Controller as master controller  
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Communication  
Note!  
In controllers with a firmware version lower than 1.05, the master controller receives the Subnet  
1 address and node address 1 and is the decisive controller in LON network terms. It is the only  
controller that can send alarms over a modem.  
9.7 Sending outdoor temperatures and controller time  
Two outdoor temperatures and the controller time can be sent over the LON bus which are taken  
on by all the other controllers. Any controller in the system can send these data. Either all the  
data can be sent by one controller or each piece of data can come from a separate controller.  
The controller time and the outdoor temperature are transmitted every four minutes. The out-  
door temperature is additionally transmitted if it changes by 0.5 °C. All controllers delete the  
values received over the bus ten minutes after the last update.  
Sending the controller time  
The controller time can be made available to all LON participants. They download the transmit-  
ted time and adopt it. The controller time can be sent with the setting Co7 -> Fb02 = ON. This  
functions should only be set in one LON participant, otherwise various controller times might be  
sent. In the case that the controller time of the LON participant fails, the controller time continues  
to run locally in all other participants.  
Function  
WE  
Configuration  
Controller time  
OFF  
Co7 -> Fb02 = ON  
Sending outdoor temperatures  
Two outdoor temperatures can be sent. By specifying the terminal number after activating the  
corresponding function block, the sensor is defined whose measured temperature is passed on.  
The transmitted temperatures are available to all LON participants.  
Functions  
WE  
Configuration  
Outdoor temperature 1  
OFF  
Co7 -> Fb03 = ON  
Terminal number of outdoor sensor  
Outdoor temperature 2  
OFF  
Co7 -> Fb04 = ON  
Terminal number of outdoor sensor  
Note!  
The outdoor temperature used by each LON participant is set on selecting the outdoor sensor  
(select: FUEHL, 0–10, Lon-1, Lon-2).  
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Communication  
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Installation  
10 Installation  
The controller consists of the housing with the electronics and the back panel with the terminals.  
It is suitable for panel, wall, and top hat rail mounting (Fig. 9).  
Panel mounting  
1. Remove both screws (1).  
2. Pull apart the controller housing and back panel.  
3. Make a cut-out of 138 x 91 mm (width x height) in the control panel.  
4. Insert the controller housing through the panel cut-out.  
5. Insert one mounting clamp (2) each at the top and bottom or at the sides. Screw the  
threaded rod towards the panel with a screwdriver such that the housing is clamped  
against the control panel.  
6. Install the electrical connections at the back of the housing as described in section 11.  
7. Fit the controller housing.  
8. Fasten both screws (1).  
Wall mounting  
1. Remove both screws (1).  
2. Pull apart the controller housing and back panel.  
3. If necessary, bore holes with the specified dimensions in the appropriate places. Fasten  
the back panel with four screws.  
4. Install the electrical connections at the back of the housing as described in section 11.  
5. Fit the controller housing.  
6. Fasten both screws (1).  
Top hat rail mounting  
1. Fasten the spring-loaded hook (4) at the bottom of the top hat rail (3).  
2. Slightly push the controller upwards and pull the upper hooks (5) over the top hat rail.  
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Installation  
Panel mounting  
2
Back of the  
controller  
1
Controller housing  
2
Wall mounting  
Top hat rail mounting  
5
4
5
3
Fig. 9 · Installation  
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11 Electrical connection  
!
Caution!  
For electrical installation, you are required to observe the relevant electrotechnical regulations  
of the country of use as well as the regulations of the local power suppliers. Make sure all electri-  
cal work is performed by trained and experienced personnel!  
Notes on installing the electrical connections  
4 Install the 230 V power supply lines and the signal lines separately! To increase noise immu-  
nity, observe a minimum distance of 10 cm between the lines. Make sure the minimum dis-  
tance is also observed when the lines are installed in a cabinet.  
4 The lines for digital signals (bus lines) and analog signals (sensor lines, analog outputs) must  
also be installed separately!  
4 In plants with a high electromagnetic noise level, we recommend to use shielded cables for  
the analog signal lines. Ground the shield at one side, either at the control cabinet inlet or  
outlet, using the largest possible cross-section. Connect the central grounding point and the  
PE grounding conductor with a cable 10 mm² using the shortest route.  
4 Inductances in the control cabinet, e.g. contactor coils, are to be equipped with suitable in-  
terference suppressors (RC elements).  
4 Control cabinet elements with high field strength, e.g. transformers or frequency converters,  
should be shielded with separators providing a good ground connection.  
Overvoltage protection  
4 If signal lines are installed outside buildings or over large distances, make sure appropriate  
surge or overvoltage protection measures are taken. Such measures are indispensable for  
bus lines!  
4 The shield of signal lines installed outside buildings must have current conducting capacity  
and must be grounded on both sides.  
4 Surge diverters must be installed at the control cabinet inlet.  
Connecting the controller  
The controller is connected as illustrated in the following wiring diagrams.  
If individual inputs for other functions, e.g. for binary inputs, are to be used, they must be deter-  
mined in the configuration levels (Co1 to Co6).  
Open the housing to connect the cables. To connect the feeding cables, make holes in the  
marked locations at the top, bottom or back of the rear part of the housing and fit suitable cable  
glands.  
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Connecting the sensors  
Cables with a minimum cross-section of 2 x 0.5 mm² can be connected to the terminals at the  
back panel of the housing.  
Connecting the actuators  
Connect cables with at least 1.5 mm² suitable for damp locations to the terminals of the control-  
ler output. The direction of travel needs to be checked at start-up.  
4 Set mode switch to (+). Valves must open.  
4 Set slide switch to (–). Valves must close.  
Connecting the pumps  
Connect all cables with at least 1.5 mm² to the terminals of the controller as illustrated in the corre-  
sponding connection diagram (–> page 92 to 96).  
Wiring plan legend (page 92 to 96):  
AA Analog output 0 to 10 V  
AE Analog input 0 to 10 V  
BA Binary output  
VFS Flow sensor in storage tank  
VFT Flow sensor in heat exchanger  
GND Ground  
BA1 UP HK1 ON/OFF  
BA2 UP HK1 Speed reduced  
BA3 UP HK2 ON/OFF  
GWx Limit alarm to terminal x  
GWy Limit alarm to terminal y  
ZB Meter bus  
BA4 UP HK2 Speed reduced  
BE/V Binary input for flow rate  
AF Outdoor sensor  
HK Heating circuit  
FW District heating circuit  
TW DHW circuit  
FG Potentiometer (terminal 3 at Type 5244)  
RF Room sensor (terminal 1 at Type 5244)  
RüF Return flow sensor  
SLP Storage tank charging pump  
TLP Heat exchanger charging pump  
UP Circulation pump  
SF Storage tank sensor  
ZP Circulation pump  
(1: Storage tank ON; 2: Storage tank OFF)  
Option Type 5244 or 5257-5  
(Terminal base of room panel is illustrated)  
STh Storage tank thermostat  
VF Flow sensor  
EB 5179 EN 91  
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System Anl 1  
3
1
2
Option:  
Type 5244, Type 5257-5  
System Anl 2  
Option:  
3
1
2
Type 5244, Type 5257-5  
Option:  
Option:  
Type 5244, Type 5257-5  
Type 5244, Type 5257-5  
92 EB 5179 EN  
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System Anl 3  
Option:  
Type 5244, Type 5257-5  
System Anl 4  
Option:  
Type 5244, Type 5257-5  
EB 5179 EN 93  
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System Anl 5  
Option:  
Type 5244, Type 5257-5  
System Anl 6  
Option:  
Type 5244, Type 5257-5  
94 EB 5179 EN  
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System Anl 7  
Option:  
Type 5244, Type 5257-5  
System Anl 8  
_
+
_
+
_
+
3
1
2
Option:  
Type 5244, Type 5257-5  
EB 5179 EN 95  
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Electrical connection  
System Anl 9  
Option:  
Type 5244, Type 5257-5  
System Anl 10  
_
+
_
+
+
3
1
2
A1  
A2  
14  
_
+
_
11  
14  
11  
Voltage  
+
supply  
A1  
A2  
24 V/30 mA  
Relay: Phoenix Contact, Type PLC-BSC-24 DC/21,  
Article no. 29 66 016  
96 EB 5179 EN  
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Appendix  
12 Appendix  
12.1 Function block lists  
Co1 to Co3: Heating circuit 1 to 3  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default settings)  
00 Room sensor  
RF1, 2, 3  
OFF  
All Co1, 2, 3 -> Fb00 = ON: Room sensor active  
In systems Anl 3, 5 and 8 only for optimization and display  
01 Return flow sensor OFF  
RüF1, 2, 3  
All Co1, 2, 3 -> Fb01 = ON: Return flow sensor active  
Function block parameters:  
Limitation factor / 0 to 25.5 (1.0)  
In system Anl 6 only after entering key number.  
02 Outdoor sensor  
AF1, 2, 3  
*
All Co1, 2, 3 -> Fb02 = ON: Outdoor sensor active;  
Option: Sensor  
Lon1  
*
HK1 = ON  
HK2 = OFF  
HK3 = OFF  
Lon2  
In HK1 it can only be deactivated when all heating circuits are  
configured as room temperature-dependent control. The out-  
door temperature is then set to the fictive value of 3 °C.  
03 Reserved  
04 Reserved  
05 Optimization  
OFF  
All Co1, 2, 3 -> Fb05 = ON:  
Option: 1 Activation according to outdoor temperature;  
set-back acc. to time schedule*  
2
Activation according to outdoor temperature;  
set-back acc. to room sensor*  
3
Activation and deactivation acc. to room sensor  
* Function block parameters:  
Advance heating time / 0 to 360 min (120 min)  
Option 2 and 3 only with Co1, 2, 3 -> Fb00 = ON  
06 Room temperature- OFF 6, 9 Co1, 2, 3 -> Fb06 = ON: Room temperature-dependent con-  
dependent control  
trol active  
07 Adaptation  
OFF Not Co1, 2, 3 -> Fb07 = ON: Adaptation active; only with  
3, 5, 8 Co1, 2, 3 -> Fb00 = ON and Co1, 2, 3 -> Fb10 = OFF  
08 Flash adaptation  
OFF Not 3, Co1, 2, 3 -> Fb08 = ON: Flash adaptation active;  
5, 8 only with Co1, 2, 3 -> Fb00 = ON  
EB 5179 EN 97  
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Appendix  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default settings)  
09 RK switched off  
when switch at  
OFF  
All Co1, 2, 3 -> Fb09 = ON: UP still runs until 1 x TY.  
The flow sensor is no longer be read.  
MAN-CLOSED  
10 4-point character- OFF Not Co1, 2, 3 -> Fb10 = ON: 4-point characteristic  
istic  
3, 5,  
8, 10  
Co1, 2, 3 -> Fb10 = OFF: Gradient characteristic  
11 Summer mode  
ON  
All Co1, 2, 3 -> Fb11 = ON: Function block parameters:  
Start summer mode / 01.01 to 31.12 (01.05)  
End summer mode/ 01.01 to 31.12 (30.09)  
Outdoor temp. limit for summer mode / 0 to 30 °C (18 °C)  
12 Potentiometer input OFF  
Release HK  
All Co1, 2, 3 -> Fb12 = ON: Valve position feedback  
(0 to 1000 Ω), 1000 Ω additional resistor required  
Co1, 2, 3 -> Fb12 = OFF: RK released with binary signal;  
Option  
FrG-E: Released over bin. signal (potentiometer)  
FrG-A: Released over time schedule  
With FrG-A:RLG:  
Configuration acc. to input  
FREE: Input freely available  
13 Pump  
management  
OFF  
All Co1, 2 -> Fb13 = ON: BA 2, 4 OFF outside time-of-use  
Co1, 2 -> Fb13 = OFF: BA 2, 4 ON outside time-of-use  
14 Continuous-action OFF  
control for heating  
circuit  
All Co1, 2, 3 -> Fb14 = ON: Continuous-action control 0 to 10 V  
Function block parameters:  
KP (proportional gain) / 0.1 to 50.0 (0.5)  
TN (reset time) / 1 to 999 s (200 s)  
TV (derivative-action time) / 0 to 999 s (0 s)  
15 Three-step control  
for heating circuit  
ON  
All Co1, 2, 3 -> Fb15 = ON: Three-step control;  
Function block parameters:  
KP (proportional gain) / 0.1 to 50.0 (0.5)  
TN (reset time) / 1 to 999 s (200 s)  
TY (valve transit time) / 15 to 240 s (120 s)  
UP lag time / 120 to 1200 s (240 s)  
Co1, 2, 3 -> Fb15 = OFF: On/off control  
Function block parameters:  
Hysteresis / 1 to 30 °C (5 °C)  
Min. activation time / 0 to 600 s (120 s)  
Min. deactivation time / 0 to 600 s (120 s)  
UP lag time / 120 to 1200 s (240 s)  
16 Parameter  
optimization  
OFF 6, 9 Co1, 2, 3 -> Fb16 = ON: Automatic parameter optimization  
(KP, TN, TV)  
98 EB 5179 EN  
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Appendix  
Comments  
Anl Function block parameters / Range of values (default settings)  
Fb Function  
WE  
OFF 6, 9 Co1, 2, 3 -> Fb17 = ON: Deactivate flow sensor  
17 Flow sensor OFF  
with room tempera-  
ture-dependent  
control  
18 Differential temper- OFF  
ature control using  
variable weighting  
factors  
All Co1, 2, 3 -> Fb18 = ON: Only for mixer circuits  
Function block parameters:  
Proportional gain (KP) / 0.1 to 999 (0.5)  
Reset time (TN) / 1 to 999 s (200 s)  
Intended temp. difference / 0 to 40 °C (20 °C)  
Analog value max. / 0 to 100 % (90 %)  
Analog value min. / 0 to 100 % (30 %)  
Fb Function block, WE Default setting  
Co4: DHW heating  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default setting)  
00 Storage tank sensor ON Not Co4 -> Fb00 = OFF, only with storage tank thermostat:  
SF1 1, 3, 6 Co4 -> Fb00 = OFF and Co4 -> Fb01 = OFF  
01 Storage tank sensor ON Not Co4 -> Fb01 = ON: 2 storage tank sensors SF1 and SF2  
SF2  
1, 3,  
6
Co4 -> Fb01 = OFF: 1 storage tank sensor SF1 or with  
Co4 -> Fb00 = OFF: Storage tank thermostat  
02 Return flow sensor OFF Not Co4 -> Fb02 = ON: Return flow sensor in DHW circuit active  
DHW circuit  
1, 2, Function block parameters:  
3, 6 Limitation factor / 0 to 25.5 (1.0)  
Note: Can only be changed after entering the key number  
03 Flow sensor  
VFS  
ON Not Co4 -> Fb03 = ON: Charging temperature limited with VFT,  
1, 3,  
6
regulated with VFS  
Co4 -> Fb03 = OFF: Charging temperature regulated with VFT,  
without VFS  
04 Circulation pump  
OFF  
Co4 -> Fb04 = ON: ZP continues to run during storage tank  
charging  
Co4 -> Fb04 = OFF: ZP runs acc. to time schedule  
Not  
1, 3,  
6
05 UP OFF at the start OFF  
of reverse control  
5
Co4 -> Fb05 = ON: UP of pump heating circuit is additionally  
switched off when reverse control starts.  
EB 5179 EN 99  
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Appendix  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default setting)  
06 Reverse control  
ON Not Co4 -> Fb06 = ON: Reverse control  
1, 3, 6  
Co4 -> Fb06 = OFF: Set-back operation  
Function block parameters:  
Activate priority in case of deviation / 0 to 30 °C (0 °C)  
07 Time until reverse  
control  
ON Not Co4 -> Fb07 = ON: Reverse control after 2 minutes  
1, 2, Co4 -> Fb07 = OFF: Reverse control after 10 minutes  
3, 6  
08 Thermal  
disinfection  
OFF Not Co4 -> Fb08 = ON:  
1, 3, 6 Function block parameters:  
Day of the week /0 = daily, 1 = Monday, 2, …, 7 (3 =  
Wednesday)  
Disinfection temperature / 60 to 90 °C (70 °C)  
Charging boost / 0 to 30 °C (5 °C)  
Start time / 00:00 to 23:30 h (00:00 h)  
Stop time / 00:00 to 23:30 h (04:00 h)  
09 Three-point step-  
ping control  
ON Not Co4 -> Fb09 = ON: Function block parameters:  
1, 2, KP (proportional gain) / 0.1 to 50.0 (0.5)  
3, 6 TN (reset time) / 1 to 999 s (200 s)  
for DHW heating  
TY (valve transit time) / 15 to 240 s (120 s)  
10 Storage tank  
system  
OFF Not Co4 -> Fb10 = ON: DHW heating in storage tank system  
1, 3, 6  
11 Mixing valve  
always active  
OFF Not Co4 -> Fb11 = ON: Heating maintained to prevent circulation  
1, 3, 6 losses  
12 Public holiday and OFF  
vacation data  
Co4 -> Fb12 = ON: Function block parameter:  
Data for heating circuit / 1 to 3 (1)  
Not  
1, 3, 6  
apply to DHW  
circuit  
13 Condensate  
accumulation  
control  
Co4 -> Fb13 = ON: Function block parameter:  
Maximum system deviation / 2 to 10 °C (2 °C)  
For all other systems (Anl) enter under Co5 -> Fb07  
7, 8  
14 Continuous-action OFF Not Co4 -> Fb14 = ON: Continuous-action control 0 to 10 V  
control  
DHW heating  
1, 3, 6 Function block parameters:  
KP (proportional gain) / 0.1 to 50.0 (0.5)  
TN (reset time) / 1 to 999 s (200 s)  
TV (derivative-action time) / 0 to 999 s (0 s)  
Fb Function block, WE Default setting  
100 EB 5179 EN  
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Appendix  
Co5: General functions and pre-control circuit  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default setting)  
00 Flow sensor  
ON  
All Co5 -> Fb00 = ON:  
secondary VFsek  
In systems Anl 6 and 9 not possible with Co5 -> Fb06 = ON  
01 Return flow sensor ON Not Co5 -> Fb01 = ON: Return flow limitation active,  
primary  
6, 9 Option steig  
Limitation acc. to gradient characteristic  
Limitation acc. to 4-point characteristic  
4-pt  
Note: Can only be changed after entering key number  
02 Reserved  
03 4-point  
OFF  
All  
10  
OFF 3, 5, 8, Co5 -> Fb03 = ON: 4-point characteristic  
characteristic  
Co5 -> Fb03 = OFF: Gradient characteristic  
Setting applies for all heating circuits.  
04 Delayed  
outdoor tempera-  
ture adaptation  
OFF  
ON  
All Co4 -> Fb04 = ON: Option  
Ab  
When outdoor temperature drops  
AufAb When outdoor temperature drops or rises  
Function block parameter:  
Delay / 1 to 6 °C/h (3 °C/h)  
05 Summer  
All Co4 -> Fb05 = ON:  
time/winter time  
changeover  
Automatic summer time/winter time changeover  
06 Compensation of  
time delays  
OFF 1, 2, Co5 -> Fb06 = ON: Only with Co5 -> Fb00 = ON  
4, 7,  
10  
07 Condensate  
accumulation  
control  
OFF  
All Co5 -> Fb07 = ON: Only with Co5 -> Fb14 = ON  
Function block parameter:  
Maximum system deviation / 2 to 10 °C (2 °C)  
08 Limitation of WMZ OFF Not Co5 -> Fb08 = ON:  
6, 9 Select limitation, depending on Co9 -> Fb21 to Fb23  
---: No limitation  
U: Flow rate limitation  
P: Capacity limitation  
U-P: Flow rate and capacity limitation  
when “U“, “P“ or “U-P“ is selected:  
CONST:  
4-Pt:  
Limitation constant  
Limitation acc. to 4-point characteristic,  
dependent on outdoor temperature  
Note: Can only be changed after entering key number  
EB 5179 EN 101  
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Appendix  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default setting)  
09 Pulse input for flow OFF Not Co5 -> Fb09 = ON: Type of limitation  
rate or capacity  
limitation  
6, 9 Option: U: Flow rate limitation P: Capacity limitation  
CONST  
4-Pt:  
Limitation constant  
Limitation acc. to 4-point characteristic  
Function block parameter:  
Pulse weighting / 0.1 to 10 (10)  
Note: Can only be changed after entering key number  
10 Locking manual  
levels  
OFF  
All Co5 -> Fb10 = ON: Manual intervention not possible and  
parameters cannot be changed  
Note: Can only be changed after entering key number  
11 Limit monitoring of OFF  
a selected sensor  
input x  
All Co5 -> Fb11 = ON: Function block parameters:  
Terminal number  
Upper/lower limit  
Signal edge, binary output  
FSr-A/FSr-E: Status alarm to error status register OFF/ON  
BA ON/BA OFF: Setting/not setting the binary input  
FALL/steig: Negative signal edge/increasing signal edge  
12 Limit monitoring of OFF  
a selected sensor  
input y  
All Co5 -> Fb12 = ON: Function block parameters:  
Terminal number  
Upper/lower limit  
Signal edge, binary output  
FSr-A/FSr-E: Status alarm to error status register OFF/ON  
BA ON/BA OFF: Setting/not setting the binary input  
FALL/steig: Negative signal edge/increasing signal edge  
13 External demand  
OFF Not Co5 -> Fb13 = ON: The highest set point is passed on;  
3, 5, (only with Fb00 = ON possible, in systems Anl 6 and 9  
8
Fb00 = OFF)  
Function block parameter:  
Boost / 0 to 30 °C (0 °C)  
In systems Anl 6 and 9 the demand can only be sent  
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Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default setting)  
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Appendix  
Co6: Sensor initialization  
Comments  
Fb Function  
WE  
Anl Function block parameters / Range of values (default setting)  
00 Sensor selection  
general  
ON  
All Co6 -> Fb00 = ON: Pt 100; Pt 1000  
Co6 -> Fb00 = OFF: Pt 100; PTC  
01 Sensor input 1  
to to  
Any sensor inputs that are different from the settings for  
function block Fb00  
17 sensor input 17  
Co6 -> Fb01 to Fb17 = ON: select:  
Outdoor temperature input:  
OFF  
All  
0/4 to 20 mA, 0 to 10 V = –40 to 50 °C  
Other temperature inputs:  
0/4 to 20 mA, 0 to 10 V = 0 to 160 °C  
Ni200, Ni1000, PTC, NTC, Pt1000, Pt100, 0/4-20, 0-10  
23 Sensor calibration OFF  
Fb Function block, WE Default setting  
All  
Co7: LON communication  
Comments  
Fb Function  
WE Anl Function block parameters / Range of values (default setting)  
00 LON active  
OFF All Co7 -> Fb00 = ON: LON interface active  
01 Controller as  
master controller  
OFF All Co7 -> Fb01 = ON: Controller is defined as primary controller  
(processes the external demand as master controller)  
Co7 -> Fb01 = OFF: Controller is defined as secondary  
controller  
02 Controller time  
OFF All Co7 -> Fb02 = ON: Controller time = LON system time  
03 Outdoor  
temperature 1  
OFF All Co7 -> Fb03 = ON: LON outdoor temperature 1  
Select: Terminal number of outdoor sensor  
04 Outdoor  
temperature 2  
OFF All Co7 -> Fb04 = ON: LON outdoor temperature 2  
Select: Terminal number of outdoor sensor  
05 Report operational OFF All Co7 -> Fb05 = ON: Report fault alarms of other LON  
faults of other LON  
participants  
participants  
Fb Function block, WE Default setting  
104 EB 5179 EN  
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Appendix  
Co8: Error initialization  
Fb Function  
Comments  
WE  
Anl Function block parameters / Range of values (default setting)  
00 Dial-up also upon OFF  
corrected fault  
All CO8 -> Fb00 = ON: Dial-up to the building control station  
both when a fault was detected and a fault was corrected  
CO8 -> Fb00 = OFF: Dial-up to building control station only  
when fault was detected  
01 BE1 in FSr  
to to  
17 BE 17 in FSr  
OFF  
All Co8 -> Fb01 to Fb17 = ON:  
Option:  
Rising signal edge/make contact  
Negative signal edge/break contact  
Note: Can only be changed after entering key number  
22 Limit monitoring  
OFF  
All Configurable over Modbus  
23 Alarm binary input OFF  
changed  
All Co8 -> Fb23 = ON: Subsequent faults reported in error status  
register (bit D11)  
Fb Function block, WE Default setting  
Co9: Modbus and meter bus communication  
Comments  
FB Function  
00 Modbus  
01 Modem  
WE Function block parameters / Range of values (default setting)  
ON CO9 -> FB00 = ON: Modbus active  
OFF CO9 -> FB01 = ON: Modem active  
02 Modem dialing  
mode  
OFF CO9 -> FB02 = ON: Pulse dialing  
CO9 -> FB02 = OFF: Tone dialing  
03 Lock dial-up  
OFF CO9 -> FB03 = ON: No dial-up in case of fault  
04 Modbus 16-bit  
addressing  
OFF CO9 -> Fb04 = ON: 16-bit addressing  
CO9 -> Fb04 = OFF: 8-bit addressing  
05 Reserved  
06 Text message alarm OFF CO9 -> FB06 = ON: Fault alarm sent to mobile phone  
07 Text message  
dialing mode  
OFF CO9 -> FB07 = ON: Pulse dialing  
CO9 -> FB07 = OFF: Tone dialing  
10 Fax alarm  
OFF CO9 -> FB10 = ON: Alarm sent to fax  
11 Fax dialing mode  
OFF CO9 -> FB11 = ON: Pulse dialing  
CO9 -> FB11 = OFF: Tone dialing  
EB 5179 EN 105  
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Appendix  
Comments  
FB Function  
WE Function block parameters / Range of values (default setting)  
21 Meter bus #1  
to to  
23 Meter bus #3  
OFF CO9 -> Fb21, 22, 23 = ON: Function block parameters:  
Meter bus address WMZ_ / 0 to 255 (255)  
Model code WMZ_ / P15, PS2, 1434, CAL3, APAtO, SLS (1434)  
Reading mode WMZ_ / 24h, con, CoiL (con)  
Fb Function block, WE Default setting  
106 EB 5179 EN  
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Appendix  
12.2 Parameter list  
PA1 to PA3: Heating circuits HK1 to HK3  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Gradient of the heating characteristic, flow  
0.4 to 3.2 (1.8)  
Level of the heating characteristic, flow  
–30 to 30 °C (0 °C)  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic  
Press key to adjust the following parameters:  
outdoor temperature,  
flow temperature,  
return flow temperature and  
set-back difference.  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic  
Point 1: Outdoor temperature  
Outdoor temperatures of the points 2, 3, 4 are marked by squares  
below the numbers 2, 3, 4.  
–30 to 90 °C  
(point 1 = –15 °C, point 2 = –5 °C, point 3 = 5 °C, point 4 = 15 °C)  
EB 5179 EN 107  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
0
0
0
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic  
Point 1: Flow temperature  
Flow temperatures of the points 2, 3, 4 are marked by squares  
below the numbers 2, 3, 4.  
20 to 130 °C  
(point 1 = 70 °C, point 2 = 55 °C, point 3 = 40 °C, point 4 = 25 °C)  
4-point characteristic  
Point 1: Return flow temperature  
Return flow temperatures of the points 2, 3, 4 are marked by  
squares below the numbers 2, 3, 4.  
20 to 90 °C  
(point 1 = 65 °C, point 2 = 50 °C, point 3 = 35 °C, point 4 = 20 °C)  
4-point characteristic Set-back difference  
Varying set-back differences can be entered for the second and  
third points. The corresponding point is marked by squares below  
the numbers 2 and 3.  
0 to 50 °C (20 °C)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Maximum flow temperature  
20 to 130 °C (90 °C)  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Minimum flow temperature  
20 to 130 °C (20 °C)  
Control according to fixed set point:  
Min. return flow temperature = Max. return flow temperature  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
0
0
0
0
1
1
1
1
1
2
2
2
2
2
3
3
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Set-back difference  
0 to 50 °C (20 °C)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Day set point  
10 to 90 °C (20 °C)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Night set point  
10 to 90 °C (17 °C)  
Optimization 2, 3  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Sustained temperature  
10 to 90 °C (10 °C)  
Optimization 3  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Gradient of the heating characteristic, return flow  
0.4 to 3.2 °C (1.2)  
Only with Co1, 2, 3 -> Fb10 = OFF  
EB 5179 EN 109  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
0
0
0
0
1
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
4
5
5
5
5
5
6
6
6
6
6
7
7
7
7
7
8
8
8
8
8
9
9
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Level of the heating characteristic, return flow  
–30 to 30 °C (0 °C)  
Characteristic is shifted parallel.  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Max. return flow temperature  
20 to 90 °C (65 °C)  
Only with Co5 -> Fb01 = ON, select: steig  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Min. return flow temperature  
20 to 90 °C (20 °C)  
Only with Co5 -> Fb01 = ON, select: steig  
Control according to fixed set point:  
Min. return flow temperature = Max. return flow temperature  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
OT activation value in rated operation  
–30 to 50 °C (–15 °C)  
START  
The heating continues to run and is not set back outside the  
time-of-use when the outdoor temperature is below the OT limit.  
2
3
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
OT deactivation value in reduced operation  
–10 to 50 °C (10 °C)  
STOP  
The heating is switched off outside the time-of-use when the out-  
door temperature is above the OT limit.  
110 EB 5179 EN  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
OT deactivation value in rated operation  
0 to 90 °C (22 °C)  
STOP  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Times-of-use  
Freely configurable (daily 7:00 to 24:00 h)  
–> Section 1.6  
0
0
0
1
1
1
2
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
Public holidays  
Freely configurable  
–> Section 1.6  
2
3
Vacations  
Freely configurable  
–> Section 1.6  
2
3
Copy times-of-use of HK1 for HK2  
Only in systems Anl 1, 2, 3, 5, 6, 7, 8, 9, 10  
EB 5179 EN 111  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Copy times-of-use of HK2 for HK3  
Only in systems Anl 3, 6  
PA4: DHW heating  
Display  
Parameter designation  
Range of values (default settings)  
0
0
0
1
1
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
DHW demand ON  
˚C  
20 to 90 °C (40 °C)  
Systems with a storage sensor SF1  
Co4 -> Fb02 = ON , Fb02 = OFF  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Hysteresis  
0 to 30 °C (5 °C)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
DHW demand ON  
20 to 90 °C (40 °C)  
Systems with two storage sensors SF1 and SF2  
Co4 -> Fb02 = ON , Fb02 = ON  
112 EB 5179 EN  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
2
2
3
3
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
DHW demand OFF  
20 to 90 °C (45 °C)  
0
1
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Charging temperature  
20 to 90 °C (55 °C)  
0
1
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Heat exchanger charging pump, deactivation limit  
20 to 90 °C (50 °C)  
STOP  
Lag of heat exchanger charging pump until the heat exchanger  
flow temperature falls below the limit.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Storage tank charging pump, deactivation limit  
20 to 90 °C (50 °C)  
STOP  
Lag of storage tank charging pump until the heat exchanger flow  
temperature falls below the limit.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Return flow limitation temperature for DHW  
20 to 90 °C (45 °C)  
EB 5179 EN 113  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Maximum charging temperature  
20 to 120 °C (120 °C)  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Time schedule of DHW heating  
00:00 to 24:00 h  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Time schedule of circulation pump  
00:00 to 24:00 h  
PA5: Capacity and flow rate limitation  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Time  
00:00 to 24:00 h  
114 EB 5179 EN  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Date (day.month)  
01.01 to 31.12  
0
1
2
3
3
3
3
4
4
4
4
5
5
5
5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Date (year)  
Freely configurable  
0
0
0
1
2
6
7
8
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Gradient of the heating characteristic, return flow  
0.4 to 3.2 (1.2)  
Only with Co5 -> Fb01 = ON, select: steig  
1
2
6
7
8
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Level of the heating characteristic, return flow  
–30 to 30 °C (0 °C)  
Characteristic is shifted parallel.  
1
2
6
7
8
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Maximum return flow temperature  
20 to 90 °C (65 °C)  
Only with Co5 -> Fb01 = ON, select: steig  
EB 5179 EN 115  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Minimum return flow temperature  
20 to 90 °C (20 °C)  
Only with Co5 -> Fb01 = ON, select: steig  
Control according to fixed set point:  
Min. return flow temperature = Max. return flow temperature  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Maximum capacity of the entire system  
0.1 to 5999 kW (50 kW)  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Maximum capacity of the heating  
0.1 to 5999 kW (50 kW)  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Maximum capacity of the DHW heating  
0.1 to 5999 kW (50 kW)  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Proportional-action coefficient for the limitation  
0.1 to 10 (1.0)  
116 EB 5179 EN  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Maximum flow rate of the entire system  
0.01 to 99.9 m3/h (9 m3/h)  
3
m
/h  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Maximum flow rate of the heating  
0.01 to 99.9 m3/h (9 m3/h)  
3
m /h  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Maximum flow rate of the DHW heating  
0.01 to 99.9 m3/h (9 m3/h)  
3
m
/h  
0
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Minimum flow rate  
(creep limitation)  
3
m
/h  
0.01 to 99.9 m3/h (0.01 m3/h)  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Proportional-action coefficient for the limitation  
0.1 to 10 (1.0)  
EB 5179 EN 117  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic  
Press key to adjust the following parameters:  
outdoor temperature,  
3
m
/h  
kW  
return flow temperature (see page 108),  
maximum flow rate or maximum capacity.  
0
0
0
0
1
1
1
1
2
2
2
2
3
3
3
3
4
4
4
4
5
5
5
5
6
6
6
6
7
7
7
7
8
8
8
8
9
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic:  
Point 1: Outdoor temperature  
Outdoor temperatures of the points 2, 3, 4 are marked by squares  
below the numbers 2, 3, 4.  
–30 to 90 °C  
(point 1 = – 15 °C, point 2 = –5 °C, point 3 = 5 °C, point 4 = 15 °C)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic:  
Point 1: Maximum limit of the flow rate  
Limits of the points 2, 3, 4 are marked by squares below the num-  
bers 2, 3, 4.  
3
m
/h  
0.01 to 99.9 m3/h  
(point 1 to point 4 = 9 m3/h)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
4-point characteristic  
Point 1: Maximum limit of the capacity  
Limits of the points 2, 3, 4 are marked by squares below the num-  
bers 2, 3, 4.  
kW  
0.1 to 5999 kW  
(point 1 to point 4 = 50 kW)  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
V-offset of the entire system  
–300 to 300 m3/h (0.0 m3/h)  
3
m
/h  
118 EB 5179 EN  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
P-offset of the entire system  
kW  
–3000 to 3000 kW (0.0 kW)  
PA9: Communication  
Display  
Parameter designation  
Range of values (default settings)  
0
1
2
2
2
3
3
3
4
4
4
5
5
5
6
6
6
7
7
7
8
8
8
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Station address (ST.-NR)  
1 to 247 (255)  
1 to 999 (255) with Co9 -> Fb04 = ON  
ST.-NR  
0
1
Baud rate (BAUD)  
300 to 19200 (9600)  
BAUD  
0
1
Cyclic initialization (I)  
0 to 255 min (30 min)  
EB 5179 EN 119  
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Appendix  
Parameter designation  
Range of values (default settings)  
Display  
0
0
0
1
1
1
2
2
2
3
3
3
4
4
4
3
5
5
5
4
6
6
6
5
7
7
7
8
8
8
9
9
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
9101112131415161718192021222324  
Modem dialing pause (P)  
1 to 255 min (5 min)  
Modem timeout (t)  
1 to 255 min (5 min)  
Number of dialing attempts (C)  
0 to 99 (5)  
0
1
2
6
7
8
Co9 -> Fb01 = ON:  
Phone number of control station (tELno)/alternative recipient (rESno)  
Co9 -> Fb06 = ON:  
D1 access number (UGno)/mobile phone number (HAndY)  
Co9 -> Fb10 = ON:  
Fax number (tELno)/Station ID (St Id)  
Max. 22 or 14 characters: 0 to 9  
P = Pause, – = End of number  
120 EB 5179 EN  
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Appendix  
12.3 Display  
The following displays are typical displays that can appear.  
Icons at the edge of the display may vary depending on the operating mode and how the con-  
troller is configured; they cannot be shown in this case.  
Inf1 to Inf3: Heating circuits HK1 to HK3  
Display  
Parameter designation  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
˚C  
Current flow temperature at VF1, VF2, VF3  
Press enter key to confirm.  
The set point is displayed.  
Current return flow temperature at RüF1, RüF2, RüF3  
Press enter key to confirm.  
The set point is displayed.  
When the function for differential temperature control using vari-  
able weighting factors without return flow temperature limitation is  
active, “s-r“ also appears on the display.  
Current outdoor temperature  
Press enter key to confirm.  
The set point is displayed.  
Current room temperature  
Press enter key to confirm.  
The set point is displayed.  
EB 5179 EN 121  
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Appendix  
Display  
Parameter designation  
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Tendency of the room temperature  
Valve position  
The actual value of the analog output with differential temperature  
control using variable weighting factors  
Press enter key to confirm.  
The set point is displayed.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Time  
Press enter key to confirm.  
The time-of-use for Monday (1) is displayed.  
Press arrow key to scroll between times-of-use for the  
other days of the week.  
0
1
2
3
4
5
6
7
8
9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Public holidays  
Press enter key to confirm.  
The first programmed public holiday is displayed.  
Press arrow key to scroll between further  
programmed public holidays.  
122 EB 5179 EN  
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Appendix  
Display  
Parameter designation  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Vacations  
Press enter key to confirm..  
The first vacation period is displayed.  
Press arrow key to scroll between other vacation periods.  
Inf4: DHW heating  
Display  
Parameter designation  
Charging temperature (supply of heat exchanger)  
Press enter key to confirm.  
The set point is displayed.  
Charging temperature (supply of storage tank)  
Press enter key to confirm.  
The set point is displayed.  
Storage tank temperature at sensor SF1  
Press enter key to confirm.  
The set point is displayed.  
EB 5179 EN 123  
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Appendix  
Display  
Parameter designation  
Storage tank temperature at sensor SF2  
Press enter key to confirm.  
The set point is displayed.  
Storage tank temperature at return flow sensor  
Press enter key to confirm.  
The set point is displayed.  
Control signal for continuous-action control  
Only with Co4 -> Fb14 = ON  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Time; Times-of-use for DHW demand  
Press enter key.  
The times-of-use for Monday (1) are shown.  
Press the arrow key to view times-of-use of the other days  
of the week.  
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15 16 17 18 19 20 21 22 23 24  
Times-of-use for circulation pump  
Press enter key.  
The times-of-use for Monday (1) are shown.  
Press enter key.  
Press the arrow key to view times-of-use of the other days  
of the week.  
124 EB 5179 EN  
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Appendix  
Inf5: District heating circuit  
Display  
Parameter designation  
Charging temperature  
Press enter key to confirm.  
The set point is displayed.  
Return flow temperature at sensor RüF or RüFprim  
Press enter key to confirm.  
The set point is displayed.  
Valve position  
Only with Co5 -> Fb16 = ON  
EB 5179 EN 125  
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Appendix  
InF7: LON communication  
Display  
Parameter designation  
Connected LON controller,  
e.g. a TROVIS 5174 with LON address 2  
Press enter key.  
“FSr“ of the corresponding controller is displayed.  
Inf8: Error status register/sensor failure  
Display  
Parameter designation  
0
1 2 3 4 5 6 7 8 9101112131415161718192021222324  
Error status register FSr 1  
Press enter key.  
“FSr 2“ appears  
0
1 2 3 4 5 6 7 8 9101112131415161718192021222324  
Sensor failure  
The affected sensors are marked with a square below their  
assigned number:  
0 (VF1) · 1 (RüF1) · 2 (AF1) · 3 (RF1) · 4 (VF2) · 5 (RüF2) · 6 (AF2)  
7 (RF2) · 8 (VF3) · 9 (RüF3) · 10 (AF3) · 11 (RF3) · 12 (FG1)  
13 (FG2_FGprim) · 14 (FG3) · 15 (VFprim) · 16 (RüFprim)  
17 (VFT) · 18 (RüFTW) · 19 (SF1) · 20 (SF2)  
21 (VFS) · 22 (flow rate)  
126 EB 5179 EN  
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Appendix  
InF9: Communication  
(only with Co9 -> Fb01 = ON, Co9 -> Fb06 = ON or Co9 -> Fb10 = ON)  
In the main display loop, the connection status appears in the InF9 level and only exists when  
the modem, SMS or fax function is active, otherwise just “END“ appears on the display.  
In this display, the applicable status from the following list of states appears when a modem  
connection is established.  
Device start (not yet initialized), dialing interval  
Modem has been initialized  
No connection established, modem is ready  
Modem has been dialed, connection has not yet been established  
Modem is dialing the control station  
Connection to control station is established  
Disconnection taking place  
4 PAUSE:  
4 INIT:  
4 FREE:  
4 RING:  
4 CALL:  
4 CONN:  
4 ENDE:  
With “Fax function“ setting, GENG3, 00, 40, 60, 80 appear on the display in sequence as  
the connection is being established.  
EB 5179 EN 127  
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Appendix  
12.4 Sensor resistance tables  
Resistance values with PTC resistors  
Type 5224 Outdoor Temperature Sensors, Type 5264 and Type 5265 Flow and Return Flow  
Temperature Sensors, Type 5264 Storage Tank Temperature Sensors  
°C –20 –10  
0
10 20 25  
30  
40  
50  
60  
70  
80  
90 100 110 120  
694 757 825 896 971 1010 1050 1132 1219 1309 1402 1500 1601 1706 1815 1925  
Ω
°C 10  
15  
20  
25  
30  
Type 5244 Sensor  
Ω
679 699 720 741 762  
Switch position  
, terminals 1 and 2  
Resistance values with Pt 1000 resistors  
Type 5227-2 Outdoor Temperature Sensor, Type 5277-2 (thermowell required) and  
Type 5267-2 (contact sensor) Flow, Return Flow and Storage Tank Temperature Sensors.  
Type 5257-1, Type 5257-5 (room panel) Room Temperature Sensors.  
°C  
–35  
–30  
–25  
–20  
–15  
–10  
–5  
0
5
10  
Ω
862.5 882.2 901.9 921.6 941.2 960.9 980.4 1000.0 1019.5 1039.0  
°C  
15  
20  
25  
30  
35  
40  
45  
50  
55  
60  
Ω
1058.5 1077.9 1097.3 1116.7 1136.1 1155.4 1174.7 1194.0 1213.2 1232.4  
°C  
65  
70  
75  
80  
85  
90  
95  
100  
105  
110  
Ω
1251.6 1270.7 1289.8 1308.9 1328.0 1347.0 1366.0 1385.0 1403.9 1422.9  
°C  
115  
120  
125  
130  
135  
140  
145  
150  
Ω
1441.7 1460.6 1479.4 1498.2 1517.0 1535.8 1554.5 1573.1  
Resistance values with Pt 100 resistors  
Use the resistance values specified in the table for Pt 1000 resistors and divide the values by 10.  
Type 5225 Outdoor Temperature Sensor, Types 5204, 5205-46 to -48 Flow and Return Flow  
Temperature Sensors, Types 5205-46 to -48 Storage Tank Temperature Sensors, Type 5255  
Room Temperature Sensor.  
128 EB 5179 EN  
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Appendix  
12.5 Technical data  
Inputs  
Sensor inputs  
Max. 17 configurable inputs for temperature sensors  
Pt 100, Pt 1000, Ni 200, Ni 1000 und PTC, NTC, 0–10 V, 0/4–20 mA  
or binary alarms (heating/DHW circuit)  
5 flow temperature sensors,  
2 outdoor temperature sensors,  
2 return flow temperature sensors,  
2 room temperature sensors,  
2 storage tank temperature sensors  
Binary inputs  
Other inputs  
Storage tank thermostat  
Pulse counter input for flow rate or capacity limitation  
Inputs for valve position feedback, remote operation to correct the  
room temperature and to select the operating mode  
Outputs  
Analog output  
Control signal y  
3 outputs  
0 to 10 V (load > 4.7 kΩ)  
Three-step signal: 230 V~, 2 A  
On/off signal: 230 V~, 2 A  
Binary outputs  
5 outputs to control pumps, 230 V~, 3 A  
4 outputs for alarms max. 50 V DC, 100 mA  
Operating voltage  
Interface  
230 V, 48 to 62 Hz, 8 VA  
RS-232 for connection to a modem, interface for meter bus  
LON (free topology)  
Ambient temperature  
Storage temperature  
Degree of protection  
Class of protection  
Degree of contamination  
Overvoltage category  
Humidity rating  
0 to 40 °C  
–20 to 60 °C  
IP 40 according to IEC 529  
II according to VDE 0106  
2 according to VDE 0110  
II according to VDE 0110  
F according to VDE 40040  
According to EN 61000-6-1  
According to EN 61000-6-3  
Approx. 0.6 kg  
Noise immunity  
Noise emission  
Weight  
EB 5179 EN 129  
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Appendix  
12.6 Customer data  
Station  
Operator  
Relevant SAMSON office  
System code number  
Function block settings in configuration levels  
Co1  
Co2  
Co3  
Co4  
Co5  
Co6  
Co7  
Co8  
Co9  
Fb00  
Fb01  
Fb02  
Fb03  
Fb04  
Fb05  
Fb06  
Fb07  
Fb08  
Fb09  
Fb10  
Fb11  
Fb12  
Fb13  
Fb14  
Fb15  
Fb16  
Fb17  
Fb18  
Fb19  
Fb20  
Fb21  
Fb22  
Fb23  
130 EB 5179 EN  
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Appendix  
PA1 to PA3: Heating circuits HK1 to HK3  
Parameters  
PA1  
PA2  
PA3  
Range of values  
0.4 to 3.2  
Gradient, flow  
Level, flow  
–30 to 30 °C  
20 to 130 °C  
20 to 130 °C  
0 to 50 °C  
Maximum flow temperature  
Minimum flow temperature  
Set-back difference  
Gradient, return flow  
0.4 to 3.2  
Level, return flow  
–30 to 30 °C  
–30 to 90 °C  
–30 to 90 °C  
–30 to 90 °C  
–30 to 90 °C  
20 to 130 °C  
20 to 130 °C  
20 to 130 °C  
20 to 130 °C  
20 to 90 °C  
20 to 90 °C  
20 to 90 °C  
20 to 90 °C  
0 to 50 °C  
Outdoor temperature; point 1  
Outdoor temperature; point 2  
Outdoor temperature; point 3  
Outdoor temperature; point 4  
Flow temperature; point 1  
Flow temperature; point 2  
Flow temperature; point 3  
Flow temperature; point 4  
Return flow temperature; point 1  
Return flow temperature; point 2  
Return flow temperature; point 3  
Return flow temperature; point 4  
Set-back temperature; point 2  
Set-back temperature; point 3  
Day set point  
0 to 50 °C  
10 to 90 °C  
10 to 90 °C  
10 to 90 °C  
20 to 90 °C  
20 to 90 °C  
–30 to 50 °C  
–10 to 50 °C  
Night set point  
Sustained temperature  
Maximum return flow temperature  
Minimum return flow temperature  
OT activation value rated operation  
OT deactivation value  
reduced operation  
OT deactivation value  
rated operation  
0 to 90 °C  
EB 5179 EN 131  
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Appendix  
Parameters  
PA1  
PA2  
PA3  
Range of values  
Times-of-use  
Monday  
Monday  
Tuesday  
Start – Stop (1)  
Start – Stop (2)  
Start – Stop (1)  
Start – Stop (2)  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
Tuesday  
Wednesday Start – Stop (1)  
Wednesday Start – Stop (2)  
Thursday Start – Stop (1)  
Thursday Start – Stop (2)  
Friday  
Start – Stop (1)  
Start – Stop (2)  
Start – Stop (1)  
Start – Stop (2)  
Start – Stop (1)  
Start – Stop (2)  
Friday  
Saturday  
Saturday  
Sunday  
Sunday  
Function block parameters Co1, Co2, Co3  
Limitation factor (Fb01 = ON)  
0 to 25.5  
0 to 360 min  
01.01 to 31.12  
01.01 to 31.12  
0 to 30 °C  
Advance heating time (Fb05 = ON)  
Start summer mode (Fb11 = ON)  
Stop summer mode (Fb11 = ON)  
Outdoor temp. limit in summer mode  
(Fb11 = ON)  
KP (proportional gain) (Fb14/15 = ON)  
TN (reset time) (Fb14/15 = ON)  
TV (derivative-action time) (Fb14 = ON)  
TY (valve transit time) (Fb15 = ON)  
UP lag time (Fb15 = ON/OFF)  
Hysteresis (Fb15 = OFF)  
0.1 to 50  
1 to 999 s  
0 to 999 s  
15 to 240 s  
120 to 1200 s  
1 to 30 °C  
0 to 600 s  
0 to 600 s  
0.1 to 999  
1 to 999 s  
Min. activation time (Fb15 = OFF)  
Min. deactivation time (Fb15 = OFF)  
Proportional gain (KP) (Fb18 = ON)  
Reset time (TN) (Fb18 = ON)  
132 EB 5179 EN  
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Appendix  
Differential temperature control using  
variable weighting factors (Fb18 = ON)  
0 to 40 °C  
Function block parameters Co1, Co2, Co3  
Analog value max. (Fb18 = ON)  
Analog value min. (Fb18 = ON)  
0 to 100 %  
0 to 100 %  
PA1  
Vacations (Start – Stop)  
Public holidays  
PA2  
Vacations (Start – Stop)  
Public holidays  
PA3  
Vacations (Start – Stop)  
Public holidays  
EB 5179 EN 133  
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Appendix  
PA4: DHW heating  
Parameters  
PA4  
Range of values  
20 to 90 °C  
20 to 90 °C  
0 to 30 °C  
DHW demand ON  
DHW demand OFF  
Hysteresis  
Charging temperature  
20 to 90 °C  
20 to 90 °C  
Heat exchanger charging pump,  
deactivation value  
Storage tank charging pump,  
deactivation value  
20 to 90 °C  
Return flow limitation temperature  
Maximum charging temperature  
Times-of-use  
20 to 90 °C  
20 to 120 °C  
DHW  
ZP  
Monday  
Monday  
Tuesday  
Tuesday  
Start – Stop (1)  
Start – Stop (2)  
Start – Stop (1)  
Start – Stop (2)  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
00:00 to 24:00 h  
Wednesday Start – Stop (1)  
Wednesday Start – Stop (2)  
Thursday Start – Stop (1)  
Thursday Start – Stop (2)  
Friday  
Start – Stop (1)  
Start – Stop (2)  
Start – Stop (1)  
Start – Stop (2)  
Start – Stop (1)  
Start – Stop (2)  
Friday  
Saturday  
Saturday  
Sunday  
Sunday  
134 EB 5179 EN  
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Appendix  
Function block parameters Co4  
Limitation factor (Fb02 = ON)  
0 to 25.5  
0 to 30 °C  
0, 1 to 7  
Activate priority in case of deviation  
(Fb06 = ON)  
Day of week (Fb08 = ON)  
Disinfection temperature (Fb08 = ON)  
Boost of charging temperature  
60 to 90 °C  
0 to 30 °C  
00:00 to 23:30  
15 to 240 s  
0.1 to 50  
Start – Stop (Fb08 = ON)  
TY (valve transit time) (Fb09 = ON)  
KP (proportional gain) (Fb09/14 = ON)  
TN (reset time) (Fb09/14 = ON)  
TV (derivative-action time) (Fb14 = ON)  
Data for heating circuits (Fb12 = ON)  
Max. system deviation (Fb13 = ON)  
1 to 999 s  
0 to 999 s  
1 to 3  
2 to 10 °C  
PA5: System-wide parameters  
Parameters  
PA5  
Range of values  
0.4 to 3.2  
Gradient, return flow  
Level, return flow  
–30 to 30 °C  
Maximum return flow temperature  
Minimum return flow temperature  
Maximum capacity of entire system  
Maximum capacity of heating  
Maximum capacity of DHW heating  
Proport.-action coefficient for limitation  
Maximum flow rate of entire system  
Maximum flow rate of heating  
Maximum flow rate of DHW heating  
Minimum flow rate  
20 to 90 °C  
20 to 90 °C  
0.1 to 5999 kW  
0.1 to 5999 kW  
0.1 to 5999 kW  
0.1 to 10  
0.01 to 99.9 m3/h  
0.01 to 99.9 m3/h  
0.01 to 99.9 m3/h  
0.01 to 99.9 m3/h  
0.1 to 10  
Proport.-action coefficient for limitation  
Outdoor temperature, point 1  
Outdoor temperature, point 2  
–30 to 90 °C  
–30 to 90 °C  
EB 5179 EN 135  
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Appendix  
Parameters  
PA5  
Range of values  
–30 to 90 °C  
Outdoor temperature, point 3  
Outdoor temperature, point 4  
Return flow temperature, point 1  
Return flow temperature, point 2  
Return flow temperature, point 3  
Return flow temperature, point 4  
Max. limit of flow rate, point 1  
Max. limit of flow rate, point 2  
Max. limit of flow rate, point 3  
Max. limit of flow rate, point 4  
Max. limit of capacity, point 1  
Max. limit of capacity, point 2  
Max. limit of capacity, point 3  
Max. limit of capacity, point 4  
V-offset of the entire system  
P-offset of the entire system  
–30 to 90 °C  
20 to 90 °C  
20 to 90 °C  
20 to 90 °C  
20 to 90 °C  
0 to 99.9 m3/h  
0 to 99.9 m3/h  
0 to 99.9 m3/h  
0 to 99.9 m3/h  
0 to 5999 kW  
0 to 5999 kW  
0 to 5999 kW  
0 to 5999 kW  
–300 to 300 m3/h  
–3000 to 3000 kW  
Function block parameters Co5  
Delay (Fb04 = ON)  
1 to 6 °C  
2 to 10 °C  
0.1 to 10  
Max. system deviation (Fb07 = ON)  
Pulse weighting (Fb09 = ON)  
Boost (Fb13 = ON)  
0 to 30 °C  
15 to 240 s  
0.1 to 50  
TY (valve transit time) (Fb14 = ON)  
KP (proportional gain) (Fb14/19 = ON)  
TN (reset time) (Fb14/19 = ON)  
Hysteresis (Fb14 = OFF)  
1 to 999 s  
1 to 30 °C  
0 to 600 s  
0 to 600 s  
0 to 999 s  
Min. activation time (Fb14 = OFF)  
Min. deactivation time (Fb14 = OFF)  
TV (derivative-action time) (Fb19 = ON)  
136 EB 5179 EN  
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Appendix  
Co9: Modbus and meter bus communication  
Parameters  
Range of values  
Station number (ST.-NR)  
Baud rate (BAUD)  
1 to 247, 999  
300 to 19200  
1 to 255 min  
0 to 255 min  
0 to 255 min  
1 to 99  
Cyclic initialization (I)  
Modem dial interval between calls (P)  
Modem timeout (t)  
Number of redial attempts (C)  
Phone number of control station  
Phone number of alternative recipient  
Access number  
max. 23 characters  
0 to 9  
P (pause)  
– (end)  
Mobile phone number  
Fax number  
Station ID  
Function block parameters (Co9)  
WMZ1  
WMZ2  
WMZ3  
Meter bus address (Fb21, 22, 23 = ON)  
0 to 255  
P15, PS2, 1434,  
CAL3, APAtO, SLS  
Model code (Fb21, 22, 23 = ON)  
Reading mode (Fb21, 22, 23 = ON)  
24h, con, CoiL  
Key number  
1732  
EB 5179 EN 137  
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Index  
Index  
4-point characteristic . . . . . . . . . . . . . . . 40 Display . . . . . . . . . . . . . . . . . . . . . . . . . . 9  
A
E
B
F
C
Fault alarm  
Capacity limitation . . . . . . . . . . . . . . 64,82  
Connection  
G
Control  
H
I
Installation  
D
DHW heating  
138 EB 5179 EN  
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Index  
Interface  
K
R
Release control loop  
L
Limitation  
Locking  
Room panel  
M
Manual operation . . . . . . . . . . . . . . . . 8,27  
Room sensors  
S
N
Sending  
O
Outdoor temperature  
T
P
EB 5179 EN 139  
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Index  
Times-of-use  
U
V
W
Frequently used abbreviations  
AA Analog output  
RL  
Return flow  
AE  
AF  
AT  
BA  
BE  
Analog input  
RüF Return flow sensor  
Outdoor sensor  
Outdoor temperature  
Binary output  
RT  
SF  
Room temperature  
Storage tank sensor  
SLP Storage tank charging pump  
STh Storage tank thermostat  
Binary input  
Co  
Fb  
Configuration level  
Function block  
Potentiometer  
TLP Heat exchanger charging pump  
TW Domestic hot water (DHW)  
FG  
UP  
VF  
Circulation pump  
Flow sensor  
FW District heating circuit  
GND Grounding  
GWx Limit issued to terminal x  
GWy Limit issued terminal y  
HK  
KW Cold water  
RF Room sensor  
VFS Flow sensor at storage tank  
VFT Flow sensor at heat exchanger  
VL  
ZB  
ZP  
Flow  
Meter bus  
Circulation pump  
Heating circuit  
140 EB 5179 EN  
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00:00  
InF1  
InF2  
InF3  
InF4  
InF5  
InF7  
InF8  
InF9  
InF1: Heating circuit 1  
InF2: Heating circuit 2  
InF3: Heating circuit 3  
InF4: DHW heating  
InF5: Primary control circuit  
InF7: LON communication  
InF8: Error status register  
InF9: Communication  
Error  
or  
Operating level  
(see section 1 for operation)  
bIn-E  
PU  
PU:  
Pump/manual level  
bIn-E: Binary inputs and outputs  
Error: Error indication  
PA1: Heating circuit 1  
PA2: Heating circuit 2  
PA3: Heating circuit 3  
PA4: DHW heating  
PA5: Capacity/flow rate limitation  
PA7: LON communication  
PA9: Communication  
Co9  
Co8  
Co7  
Co6  
Co5  
Co4  
Co3  
Co2  
Co1  
Anl:  
System  
PA1  
PA2  
PA3  
PA4  
PA5  
PA7  
PA9  
Co1: Heating circuit 1  
Co2: Heating circuit 2  
Co3: Heating circuit 3  
Co4: DHW heating  
Co5: Separate functions  
Co6: Sensor initialization  
Co7: LON communication  
Co8: Error initialization  
Co9: Communication  
or  
Configuration and  
parameter level  
(see section 2 for start-up)  
Anl  
Fig. 10 · Level structure  
EB 5179 EN 141  
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SAMSON AG · MESS- UND REGELTECHNIK  
Weismüllerstraße 3 · 60314 Frankfurt am Main · Germany  
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507  
Internet: http://www.samson.de  
EB 5179 EN  
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