Trane Voyager 1 Rooftop Unit Tsd User Manual

Installation  
Operation  
Maintenance  
Voyager™ I Rooftop Units  
Cooling-onlyTSD/TSH 060 072 102 120  
Reversible WSD/WSH 060 072 090  
Gas-firedYSD/YSH 060 072 090 102 120  
RT-SVX20A-E4  
General information  
Reception  
Refrigerant  
Maintenance contract  
On arrival, inspect the unit before  
signing the delivery note. In case of  
visible damage:The consignee (or  
the site representative) must specify  
any damage on the delivery note,  
legibly sign and date the delivery  
note, and the truck driver must  
countersign it.The consignee (or the  
site representative) must notify  
Trane Epinal Operations - Claims  
team and send a copy of the  
The refrigerant provided by the  
manufacturer meets all the  
It is strongly recommended that you  
sign a maintenance contract with  
your local Service Agency.This  
contract provides regular  
maintenance of your installation by  
a specialist in our equipment.  
Regular maintenance ensures that  
any malfunction is detected and  
corrected in good time and  
minimizes the possibility that  
serious damage will occur. Finally,  
regular maintenance ensures the  
maximum operating life of your  
equipment. We would remind you  
that failure to respect these  
installation and maintenance  
instructions may result in  
requirements of our units. When  
using recycled or reprocessed  
refrigerant, it is advisable to ensure  
its quality is equivalent to that of a  
new refrigerant. For this, it is  
necessary to have a precise analysis  
made by a specialized laboratory. If  
this condition is not respected, the  
manufacturer warranty could be  
cancelled.  
delivery note.The customer (or the  
site representative) should send a  
registered letter to the last carrier  
within 3 days of delivery.  
Storage  
Take precautions to prevent  
condensate formation inside the  
unit's electrical components and  
motors when:  
1.The unit is stored before it is  
installed; or,  
2.The unit is set on the roof curb  
and temporary auxiliary heat is  
provided in the building.  
Isolate all side panel service  
entrances and base pan openings  
(e.g., conduit holes, S/A and R/A  
openings, and flue openings) to  
minimize ambient air from entering  
the unit until it is ready for start-up.  
Reception in France only:  
immediate cancellation of the  
warranty.  
Concealed damage must be looked  
for at delivery and immediately  
treated as visible damage.  
Training  
Reception in all countries except  
France:  
To assist you in obtaining the best  
use of it and maintaining it in  
perfect operating condition over a  
long period of time, the  
manufacturer has at your disposal a  
refrigeration and air conditioning  
service school.The principal aim of  
this is to give operators and  
technicians a better knowledge of  
the equipment they are using, or  
that is under their charge. Emphasis  
is particularly given to the  
importance of periodic checks on  
the unit operating parameters as  
well as on preventive maintenance,  
which reduces the cost of owning  
the unit by avoiding serious and  
costly breakdown.  
In case of concealed damage:The  
consignee (or the site  
representative) must send a  
registered letter to the last carrier  
within 7 days of delivery, claiming  
for the described damage. A copy of  
this letter must be sent toTrane  
Epinal Operations - Claims team.  
Do not use the unit's heater as  
temporary heat without completing  
the start-up procedures detailed  
under "Unit Start-Up".  
Warranty  
Warranty is based on the general  
terms and conditions of the  
manufacturer.The warranty is void  
if the equipment is repaired or  
modified without the written  
TheTrane Company will not assume  
responsibility for equipment  
damage resulting from  
accumulation of condensate on the  
unit electrical components.  
approval of the manufacturer, if the  
operating limits are exceeded or if  
the control system or the electrical  
wiring is modified. Damage due to  
misuse, lack of maintenance or  
failure to comply with the  
manufacturer's instructions or  
recommendations is not covered by  
the warranty obligation. If the user  
does not conform to the rules of  
this manual, it may entail  
cancellation of warranty and  
liabilities by the manufacturer.  
RT-SVX20A-E4  
3
Contents  
General information  
Foreword  
Warnings and Cautions  
Reception  
2
2
2
3
3
3
3
3
3
Warranty  
Refrigerant  
Maintenance contract  
Storage  
Training  
Installation  
Reception of units  
6
6
Roof curb installation  
6
Dimensions/Weights/Clearances  
Installing the unit  
7
9
Connection of duct network  
Condensate drain piping  
Gas pipework installation  
Filter installation  
10  
12  
13  
14  
14  
16  
17  
30  
Supply fan adjustment  
Component air pressure drops  
Supply fan performances  
Electrical connection  
Controls  
Control wiring  
33  
33  
35  
39  
40  
41  
41  
41  
41  
42  
43  
2
CO sensors  
Remote potentiometer  
Fire thermostat  
Clogged filter detector  
Smoke detector  
High temperature safety thermostat  
Remote fault relay  
Thermostats  
Communication Interfaces  
4
RT-SVX20A-E4  
Contents  
Unit Options  
Hot water coil  
Electric Heater  
Soft Starter  
0 - 25% fresh air hood  
Barometric relief  
44  
44  
45  
45  
46  
47  
Operation  
Operation with a conventional thermostat  
Setting the economizer  
Test procedures  
48  
48  
50  
52  
53  
54  
56  
57  
57  
58  
58  
58  
59  
Test modes  
Unit Start-up  
Cooling without an Economizer  
Low Ambient Operation  
Cooling with an Economizer  
Economizer Set-Up  
ReliaTel™ Control Heating Operation  
Ignition Module  
Final installation checklist  
Maintenance  
End user routine maintenance  
Service technician maintenance  
Troubleshooting  
60  
60  
61  
62  
RT-SVX20A-E4  
5
Installation  
Figure 2 - Rigging  
General information:The  
Roof curb (accessory)  
installation must conform to all  
local standards and regulations.  
Roof curbs are available as an  
accessory for downflow units.The  
curbs can be adjustable and  
supplied pre-assembled on wooden  
pallets, packed under plastic film.  
Two types of self-adhesive seals are  
provided to ensure the roof curb  
seal is leak-tight (40 mm wide for  
the perimeter, 20 mm wide for the  
crosspieces).  
Reception of units  
Rooftop unit  
1
There are two ways to handle the  
unit:  
1. Use the openings in the base to  
handle the machine using a  
forklift, in accordance with  
applicable safety regulations.  
2. Use a lifting beam correctly  
adjusted to fit the unit (Figure 1).  
2
Roof curb Installation  
(TSD-WSD-YSD  
accessories)  
Roof curbs are available as an  
accessory for "downflow" units to  
support the unit and ensure the  
water tightness between the rooftop  
and the roof.  
Unit handling  
1 = Remove 2 fork lift brackets  
The units are supplied on the truck  
but are not unloaded. An opening is  
provided on each corner of the unit  
base to facilitate handling. Four  
shackles and four slings are  
required. Use a lifting beam to  
prevent the cables pressing too hard  
on top of the unit during lifting.The  
structure accommodating the unit(s)  
must be designed to support the  
equipment in operation, as a  
2 = Remove 2 metal runners and 3  
wooden boards  
Lift the unit enough to allow the  
removal of two Fork Lift brackets  
and hardware. Remove the two Fork  
Lift brackets, two metal runners and  
three wooden boards as shown in  
Figure 2.  
The curbs can be adjustable and  
supplied pre-assembled on wooden  
pallets, packed under plastic film.  
Two types of self-adhesive seals are  
provided separate. (40 mm wide for  
the perimeter, 20 mm wide for the  
cross pieces). Make sure they are  
properly installed where indicated  
to assure an adequate curb to unit  
seal.  
minimum. (Refer to Figures 1 and  
2 andTables 2 and 3.)  
Important: For unit to fit on the roof  
curb the fork lift pockets must be  
removed.  
Instructions for the roof curb  
assembly and installation with curb  
dimensions are provided with each  
roof curb kit.  
Figure 1 - Unit handing  
6
RT-SVX20A-E4  
Installation  
Figure 3 - Minimum clearances  
Dimensions/Weights/  
Clearances  
The structure accommodating the  
unit(s) must be designed to support  
the equipment in operation, as a  
minimum. Refer toTable 2 and the  
space requirement plan.  
Table 1 - Minimum recommended clearances  
Unit size  
Mimum clearances (mm)  
1
2
3
4
5
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1829  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
1219  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
914  
Table 2 - Unit weights and center of gravity  
Maximum weight  
Corner weight (1)  
Center of gravity  
Unit Size  
Shipping  
(kg)  
Net  
(kg)  
A
(kg)  
B
(kg)  
C
(kg)  
D
(kg)  
Length  
(mm)  
Width  
(mm)  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
259  
365  
428  
445  
485  
285  
390  
458  
474  
520  
266  
408  
418  
235  
326  
389  
405  
445  
260  
350  
419  
434  
481  
241  
368  
378  
75  
56  
83  
48  
58  
67  
72  
81  
54  
64  
75  
79  
89  
49  
66  
67  
56  
78  
790  
970  
970  
990  
990  
810  
480  
560  
530  
560  
560  
510  
560  
530  
560  
560  
480  
560  
530  
107  
131  
133  
147  
81  
101  
106  
115  
64  
89  
94  
104  
62  
113  
139  
141  
155  
77  
90  
83  
990  
970  
1020  
1020  
790  
970  
970  
110  
114  
126  
58  
95  
100  
111  
58  
122  
128  
93  
87  
95  
88  
Notes:  
(1) Corner weights are given for information only. All models must be supported continuously by a curb or  
equivalent frame support.  
RT-SVX20A-E4  
7
Installation  
Figure 4  
Center of  
gravity length  
A
B
Center of  
gravity width  
C
D
Center of  
gravity  
Table 3 - Factory-installed options and accessories net weights (kg)  
Motorized  
Outside Air  
Damper  
Manual  
Outside Air  
Damper  
Barometric  
Relief  
Oversized  
Motor  
Electric  
Heaters  
Hot water  
coil  
Unit size  
Economizer  
Roof Curb  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 1020  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
11,8  
16,3  
16,3  
16,3  
16,3  
11,8  
16,3  
16,3  
16,3  
16,3  
11,8  
16,3  
16,3  
3,2  
4,5  
4,5  
4,5  
4,5  
3,2  
4,5  
4,5  
4,5  
4,5  
3,2  
4,5  
4,5  
9,1  
13,6  
13,6  
13,6  
13,6  
9,1  
7,3  
31,8  
52,2  
52,2  
52,2  
52,2  
31,8  
52,2  
52,2  
52,2  
52,2  
31,8  
52,2  
52,2  
-
6,8  
13,6  
13,6  
13,6  
13,6  
6,8  
14,0  
17,0  
17,0  
19,0  
19,0  
11,8  
11,8  
11,8  
11,8  
7,3  
3,6  
3,6  
3,6  
3,6  
-
13,6  
13,6  
13,6  
13,6  
9,1  
11,8  
11,8  
11,8  
11,8  
7,3  
3,6  
3,6  
3,6  
3,6  
-
13,6  
13,6  
13,6  
13,6  
6,8  
14,0  
17,0  
17,0  
13,6  
13,6  
11,8  
11,8  
3,6  
3,6  
13,6  
13,6  
Notes:  
(1) Weights for options not listed are < 3 kg.  
(2) Net weight should be added to unit weight when ordering factory-installed accessories.  
(3) Some accessories are not available on all units.  
8
RT-SVX20A-E4  
Installation  
Figure 5 - Conversion to horizontal  
discharge  
3. Position duct covers as shown in  
Figure 4.The supply duct cover is  
installed (insulation side down)  
over the downflow return  
Installing the unit  
Discharge Conversion  
3
opening by engaging one side of  
the panel under a retaining angle  
and securing the other side with  
3 screws.  
If a unit is to be converted to  
Vertical discharge, a panel must be  
acquired fromTrane.  
If a unit is to be converted to  
Horizontal discharge, the following  
conversion must be performed:  
1. Remove the return and supply  
duct covers.  
4. Slide return duct cover  
(insulation side up) into supply  
openings until outer edge of the  
duct cover engages with the two  
retaining clips on the duct  
flanges. Secure the outer edge of  
the each duct cover with two  
screws.  
1
2. Apply gasket to the return duct  
2
cover.  
1 = Supply duct cover, insulation side  
down  
2 = Return duct cover with gasket  
installed, insulation side up  
3 = Edge of duct cover goes under  
retaining angle  
Unit mounting on roof  
Fix the rooftop curb on the joint  
beam of the building's structure.  
Make the rooftop curb's sealing  
surface level using angle brackets  
adjusted by screw bolts, located  
around its perimeter. Place the  
adhesive seals on the curb's sealing  
surface (perimeter and cross  
pieces). Make the rooftop leak-tight  
around the curbs before installing  
the unit, in compliance with current  
construction standards.  
Note:The unit must be installed  
perfectly level to ensure  
condensates flow from the  
condensate tray.  
Figure 6 - Unit mounting on roof  
The rooftop unit nests into the curb  
and is supported by it. Position the  
unit, taking care to comply with the  
indicated directions: the unit's  
discharge and intake openings must  
match those of the curb.  
1
1 = Frame  
RT-SVX20A-E4  
9
Installation  
Installing the unit on the ground  
For the design of the duct  
network, comply with  
recommendations currently  
applicable on the market, in  
particular:  
. Installation of a section of  
flexible ducts to limit  
transmission of the unit's  
vibrations  
Connection of duct  
network  
To install the unit on the ground, its  
base must be level and supported  
securely. For horizontal discharge  
units, a support is required such as  
a metal or concrete slab whose  
height must be determined  
according to the amount of snow  
cover, to prevent problems with  
condensation drainage and  
obstruction of the external coil. If  
necessary use an anti-vibration  
material between the rooftop unit's  
base and the support.  
1) Downflow discharge units  
(TSD,WSD,YSD)  
Using the rooftop curb  
The rooftop curb must be  
insulated on the outside walls at  
the discharge and intake  
openings to prevent  
. Use of movable vanes or  
deflectors to reduce the sound  
level.  
condensation in the ducts.  
The rims around the discharge  
and intake openings make it  
possible to attach the flanges on  
the ends of the ducts. If you are  
using rigid duct ends  
2) Horizontal discharge units  
(TSH,WSH,YSH)  
The intake and discharge ducts  
must be insulated (thermal  
insulation).  
The duct section located outside  
must be leak-tight.  
Provide a flexible connector to  
prevent transmission of the unit  
vibrations.This flexible duct  
must be installed inside the  
building.  
Note: Unit installation must comply  
to local codes  
recommended on the rooftop  
curb plan, it is essential to fix  
these components before  
installing the unit.  
Note: In case of use of units with  
economizer option, temperature  
and humidity sensors must be  
installed in return duct.  
Economizer linkage is factory  
mounted but the damper position  
must be adjusted on site.  
Figure 7 - Unit installation on the ground  
1 = Concrete slab  
10  
RT-SVX20A-E4  
Installation  
Table 4 - Duct dimensions for downflow units (mm)  
Unit size  
A
B
C
D
E
Flanges  
TSD 060  
619  
610  
819  
875  
875  
816  
357  
356  
357  
451  
451  
444  
411  
394  
411  
451  
451  
444  
459  
457  
459  
875  
875  
838  
356  
356  
356  
356  
356  
356  
32  
32  
32  
31  
31  
31  
YSD 060  
WSD 060  
TSD/WSD 072/090  
TSD 102/120  
YSD 072/090/102/120  
Table 5 - Duct dimensions for downflow units (mm)  
Unit size  
A
B
C
D
TSH/WSH 060  
591  
591  
832  
832  
337  
337  
425  
425  
375  
375  
606  
606  
438  
438  
489  
489  
YSH 060  
TSH/WSH/YSH 072/090  
TSH/YSH 102/120  
Figure 8 - Duct dimensions for downflow units  
Figure 9 - Duct dimensions for horizontal units  
B
A
C
D
A
R
S
R
C
S
B
E
D
S = Supply  
R = Return  
S = Supply  
R = Return  
RT-SVX20A-E4  
11  
Installation  
Figure 10 - Condensate drain location  
Condensate drain piping  
A 3/4" condensate drain connection  
with P-trap is provided. Follow local  
codes and standard piping practices  
when running the drain line. Install  
a trap and be sure to fill with water  
before starting the unit. Pitch the  
line downward, away from the unit  
to avoid long, level, horizontal runs.  
Refer to Figure 11.  
The condensate drain is reversible  
to allow installation of a drain tap  
on either side of the unit.  
1
1 = Main condensate drain location  
Figure 11 - Condensate drain line location  
1 = Static pressure drain pan  
2 = Panel enclosure  
3 = ¾ " drain  
4 = Cleanout plug  
12  
RT-SVX20A-E4  
Installation  
CAUTION! Should the pressure at  
the unit valve gas inlet be higher  
than 0.035 bar, an expansion valve  
must be installed.  
CAUTION!The gas pipework must  
not exert any stress on the burner  
gas connection.  
Gas pipework installation  
The installation must conform to all  
standards and regulations.  
Note: Expansion valve must be  
The gas supply pipework and gas  
stop valve to be installed near the  
unit must be sized so as to ensure  
the gas pressure is sufficient at the  
unit inlet when operating at full  
load.  
The pipework must be self-  
supporting and the final connection  
to the burner must be made by a  
flexible pipe. Provide a dust  
protection (filter) upstream the unit  
connection.  
adapted to the type of gas used:  
G 20: 20 mb  
G 25: 25 mb  
G 31 (Propane): 37 or 50 mb  
Table 6 - Gas burner models  
Unit  
Burner size  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
G120  
G200  
G200  
G250  
G250  
SeeTable 51 for burner  
performance.  
Gas leak check procedure  
1. Vent the gas line  
2. Gas supply line pressure test:  
close valve 4 and open valve 2  
3. Leak-check the gas pipe.  
Figure 12 -Typical gas supply pipework  
Look for gas pipe leaks using  
"Typol", "1000 bulles" or a similar  
product. Do not use soapy water.  
WARNING! Never use an open  
flame to check for gas leaks.  
Required gas pressure at the unit  
inlet connection are given in  
Table 50.  
Note:To operate with propane gas,  
the burner is fitted with a pressure  
limiter (supplied byTrane)  
1 = Evaporator section  
2 = Gas burner section  
3 = Condenser section  
4 = Gas supply connection  
5 = Gas supply line  
6, 8 = Gas stop valve (Field supplied)  
7 = Expansion valve (Field supplied)  
9 = Filter (Field supplied)  
RT-SVX20A-E4  
13  
Installation  
Filter installation  
Supply fan adjustment  
To gain access to filters, remove the  
supply fan access panel on  
downflow units and the filter access  
panel on the end for horizontal  
units.  
Use the following procedure to  
determine the proper adjustment of  
the supply fan for a specific  
application.  
1. Determine total external static  
pressure about system and  
accessories.  
• Obtain the design airflow rate  
and the design external static  
pressure drop through the  
distribution system.  
• Add static pressure drop of the  
accessories installed on the unit.  
(Table 9)  
Number and size of filters is  
determined by size and  
configuration of the unit. If  
disposable filters were chosen as an  
option, they are shipped in the  
supply fan section.  
CAUTION! Do not operate unit  
without filters in place.  
• Add the total accessory static  
pressure drop (from step 1b) to  
the design external static  
pressure (from step 1a).The sum  
of these two values is the total  
system external static pressure.  
2. Using theTables 10 through 35 to  
find the external static pressure  
that most closely approximates  
total system external static  
pressure.Then locate the  
appropriate airflow rate for your  
unit.The value obtained  
The maximum pressure drops  
allowable on filters are:  
EU2/G2: 120 Pa  
EU4/G4: 150 Pa  
represents the brake horsepower  
for the supply fan motor and the  
fan RPM.  
3. Adjust motor sheave according  
toTable 8.  
Table 7 - Filter arrangement  
Unit  
EU2/G2  
EU4/G4  
Size  
Quantity  
Size  
Quantity  
TSD/TSH/YSD/YSH/WSD/WSH 060  
TSD/TSH/YSD/YSH/WSD/WSH 072  
TSD/TSH/YSD/YSH/WSD/WSH 090  
TSD/TSH/YSD/YSH 102  
2
4
4
4
4
(508x762x25)  
(406x635x50)  
(406x635x50)  
(508x635x50)  
(508x635x50)  
2
4
4
4
4
(500x750x25)  
(395x625x50)  
(395x625x50)  
(500x625x50)  
(500x625x50)  
TSD/TSH/YSD/YSH 120  
14  
RT-SVX20A-E4  
Installation  
To increase airflow  
To adjust belt  
When removing or installing the  
new belts, do not stretch them over  
the sheaves. Loosen the belts using  
the belt tension adjustment bolts on  
the motor mounting base.  
Loosen variable sheave set screw  
and turn sheave clockwise.  
The fan belts must be inspected  
periodically to assure proper unit  
operation. Replacement is  
necessary if the belts appear frayed  
or worn.  
To decrease airflow  
Once the new belts are installed,  
adjust the belt tension.  
Loosen variable sheave set screw  
and turn sheave counter-clockwise.  
Units with dual belts require a  
matched set of belts to ensure equal  
belt length.  
Table 8 - Motor sheave / Fan speed  
Fan speed (RPM)  
Standard drive & motor  
6 turns  
Open  
5 turns  
Open  
4 turns  
Open  
3 turns  
Open  
2 turns  
Open  
1 turns  
Open  
Unit  
Closed  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
N/A  
859  
786  
894  
N/A  
N/A  
N/A  
898  
698  
752  
688  
782  
1036  
806  
913  
836  
950  
898  
698  
752  
967  
751  
806  
737  
838  
1105  
860  
967  
885  
1006  
967  
751  
806  
1036  
806  
860  
786  
894  
1174  
913  
1105  
859  
914  
1174  
913  
1243  
967  
968  
1020  
934  
835  
950  
1243  
968  
1075  
982  
1118  
1105  
859  
914  
885  
1006  
1312  
1022  
1129  
1032  
1174  
1174  
913  
1062  
1381  
1074  
N/A  
1021  
934  
1062  
1036  
806  
860  
N/A  
N/A  
1243  
967  
968  
1020  
Fan speed (RPM)  
Oversized drive & motor  
6 turns  
Open  
5 turns  
Open  
4 turns  
Open  
3 turns  
Open  
2 turns  
Open  
1 turns  
Open  
Unit  
Closed  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
N/A  
N/A  
1112  
N/A  
1062  
-
1243  
967  
1182  
971  
1118  
-
1311  
1021  
1252  
1041  
1174  
-
1379  
1075  
1322  
1111  
1229  
-
1450  
1128  
1392  
1181  
1285  
-
1515  
1183  
1460  
1251  
1341  
-
1588  
1235  
N/A  
1321  
N/A  
-
N/A  
1112  
N/A  
1062  
N/A  
N/A  
1112  
967  
1182  
971  
1118  
1243  
967  
1182  
1021  
1252  
1041  
1174  
1311  
1021  
1252  
1075  
1322  
1111  
1229  
1379  
1075  
1322  
1128  
1392  
1181  
1285  
1450  
1128  
1392  
1183  
1460  
1251  
1341  
1515  
1183  
1460  
1235  
N/A  
1321  
N/A  
1588  
1235  
N/A  
RT-SVX20A-E4  
15  
Installation  
Component air pressure drops  
Table 9 - Pressure drop through accessories  
Economizer  
100%  
outside air  
Unit  
size  
Airflow  
(m /h)  
Filter  
EU2/G2  
Filter  
EU4/G4  
Electric  
heater  
Hot water  
coil  
3
3060  
3400  
3740  
4080  
31  
38  
46  
55  
50  
55  
61  
66  
38  
46  
55  
64  
17  
21  
25  
30  
49  
55  
62  
68  
060  
072  
090  
102  
120  
3670  
4080  
4490  
4900  
13  
16  
19  
23  
37  
42  
46  
50  
27  
29  
31  
33  
7
9
46  
52  
58  
64  
11  
13  
4590  
5100  
5610  
6120  
19  
24  
29  
35  
47  
52  
57  
62  
33  
39  
45  
52  
12  
15  
20  
25  
66  
74  
83  
92  
5200  
5780  
6360  
6940  
16  
20  
25  
30  
42  
47  
52  
57  
40  
50  
62  
75  
8
64  
72  
81  
90  
10  
12  
15  
6120  
6800  
7480  
8160  
22  
27  
33  
40  
50  
55  
61  
66  
52  
62  
73  
85  
11  
14  
17  
20  
84  
95  
106  
117  
16  
RT-SVX20A-E4  
Installation  
Supply fan performances  
Table 10 -TSD 060 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
899 0.43 944 0.49 985 0.54 1023 0.59 1060 0.64 1093 0.69 1126 0.74  
904 0.49 947 0.54 988 0.58 1028 0.64 1067 0.70 1104 0.76 1138 0.82 1171 0.87  
918 0.57 958 0.62 998 0.67 1036 0.71 1073 0.76 1111 0.82 1147 0.89 1182 0.96 1215 1.02  
930 0.65 977 0.71 1016 0.77 1053 0.82 1089 0.88 1124 0.93 1158 0.98 1191 1.03 1226 1.10 1258 1.17  
909 0.71 950 0.76 990 0.80 1034 0.87 1074 0.93 1110 1.00 1143 1.06 1177 1.12 1209 1.17 1241 1.23 1272 1.29  
-
-
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
1160 0.79 1190 0.84 1222 0.90  
1203 0.93 1232 0.98 1262 1.04  
1246 1.09 1276 1.15 1306 1.21  
1290 1.25  
-
-
-
-
-
-
-
-
-
-
Table 11 -TSH 060 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
-
-
-
-
-
-
-
-
-
-
-
-
898 0.43 953 0.48 1001 0.54 1045 0.59 1087 0.65 1129 0.71 1168 0.77 1206 0.83 1241 0.89  
897 0.48 953 0.54 1008 0.60 1058 0.67 1102 0.73 1143 0.79 1181 0.85 1219 0.92 1256 0.99 1291 1.05  
908 0.54 961 0.60 1012 0.67 1062 0.74 1111 0.81 1157 0.88 1198 0.95 1237 1.02 1274 1.09 1309 1.16 1343 1.24  
923 0.63 978 0.69 1028 0.76 1075 0.83 1120 0.91 1166 0.99 1211 1.06 1254 1.14 1294 1.22 1330 1.29  
997 0.80 1049 0.87 1096 0.94 1140 1.02 1183 1.10 1223 1.18 1266 1.27  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
1275 0.96 1306 1.02 1338 1.09  
1326 1.12 1359 1.19 1390 1.26  
1376 1.31  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
17  
Installation  
Table 12 -TSD 072 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
726 0.41 769 0.47 811 0.52 851 0.58 889 0.65 925 0.71 960 0.77  
706 0.43 751 0.49 792 0.55 832 0.61 871 0.67 908 0.74 944 0.81 978 0.87  
732 0.51 777 0.58 818 0.64 856 0.71 893 0.77 930 0.84 964 0.91 998 0.99  
715 0.54 758 0.60 802 0.68 845 0.75 883 0.82 919 0.89 953 0.96 986 1.04 1019 1.11  
706 0.58 749 0.64 789 0.71 830 0.79 870 0.87 909 0.95 945  
1.02 979  
1.10 1011 1.18 1043 1.26  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
kW  
3
m /h  
kW  
kW  
RPM  
3260  
3670  
4080  
4490  
4890  
994 0.83 1026 0.89 1057 0.95  
1010 0.94 1043 1.01 1073 1.08  
1030 1.06 1063 1.14 1092 1.21  
1051 1.19 1082 1.27 1112 1.35  
1073 1.34 1103 1.42 1133 1.51  
Table 13 -TSH 072 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
726 0.39 771 0.45 814 0.51 857 0.57 899 0.63 939 0.70 978 0.76 1015 0.83  
716 0.42 762 0.48 804 0.54 843 0.60 883 0.67 922 0.74 960 0.81 996 0.87 1034 0.95  
701 0.45 751 0.51 798 0.59 839 0.65 877 0.71 914 0.78 950 0.85 984 0.93 1020 1.00 1055 1.08  
710 0.51 745 0.56 788 0.62 833 0.69 875 0.77 914 0.85 949 0.91 984 0.98 1016 1.06 1049 1.14 1081 1.23  
726 0.58 762 0.64 795 0.70 828 0.76 869 0.82 911 0.91 950 0.99 986 1.07 1019 1.14 1051 1.22 1081 1.30 1112 1.38  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
1051 0.90 1086 0.97 1118 1.04  
1069 1.02 1103 1.09 1136 1.17  
1089 1.16 1122 1.23 1154 1.31  
1113 1.31 1144 1.40 1176 1.48  
1141 1.47 1170 1.57 1199 1.66  
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
18  
RT-SVX20A-E4  
Installation  
Table 14 -TSD 090 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
750 0.54 794 0.60 834 0.67 873 0.73 909 0.80 945 0.87 980 0.95 1013 1.02  
787 0.66 830 0.74  
871 0.82 908 0.89 943 0.96 977  
1.04 1010 1.11 1043 1.19  
747 0.68 789 0.74 827 0.82 867 0.90 906 0.98 944 1.06 980  
1.15 1013 1.23 1045 1.31 1076 1.39  
755 0.77 797 0.85 836 0.92 873 1.00 908 1.08  
1.14 921 1.22 954 1.30  
944  
1.17 980 1.26 1016 1.35 1050 1.45 1081 1.54 1111 1.63  
771 0.88 809 0.96 848 1.06 885  
986 1.39 1019 1.49 1052 1.58 1085 1.69 1116 1.79 1148 1.89  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
1046 1.10 1076 1.17 1106 1.25  
1074 1.27 1105 1.36 1134 1.44  
1105 1.47 1134 1.56 1163 1.65  
1141 1.72 1168 1.80 1197 1.90  
1177 1.99 1204 2.08 1232 2.18  
Table 15 -TSH 090 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
-
-
-
-
-
-
-
-
769 0.54 814 0.61 855 0.67 893 0.73 929 0.81 965 0.88 999 0.96 1035 1.04 1070 1.12  
773 0.62 817 0.68 862 0.76 904 0.85 941 0.92 975 0.98 1009 1.06 1041 1.14 1073 1.22 1104 1.31  
989 1.12 1025 1.21 1056 1.28 1088 1.36 1117 1.44 1146 1.53  
1.17 1000 1.25 1037 1.34 1073 1.45 1106 1.55 1136 1.63 1165 1.72 1194 1.80  
942 1.22 970 1.30 996 1.37 1021 1.45 1052 1.52 1086 1.61 1121 1.71 1153 1.82 1184 1.93 1215 2.04 1242 2.13  
-
-
771 0.68 805 0.74 837 0.81 870 0.87 912 0.94 951 1.03  
842 0.89 873 0.96 903 1.03 930 1.10 963  
913  
1.14  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
1104 1.19 1137 1.27 1168 1.35  
1136 1.40 1167 1.48 1198 1.57  
1176 1.62 1205 1.72 1233 1.82  
1220 1.88 1248 1.98 1275 2.08  
1269 2.22 1295 2.31 1319 2.40  
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
19  
Installation  
Table 16 -TSD 102 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
695 0.62 733 0.71 769 0.81 802 0.90 833  
1.00 863 1.11  
892 1.21  
919 1.35  
946 1.51  
688 0.64 725 0.73 761 0.83 796 0.93 828  
1.03 861  
1.18 887  
1.34 916  
1.52 948  
1.13  
1.28  
891 1.24  
917 1.40  
689 0.68 724 0.76 759 0.86 792 0.96 825 1.07 856  
826 1.11 857 1.22 887  
864 1.30 892 1.40 920  
693 0.72 729 0.82 764 0.92 795 1.01  
1.46 945 1.58  
974  
1.70  
706 0.80 738 0.89 770 0.98 804 1.09 834 1.19  
1.64 976 1.78 1002 1.91  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
920  
946  
974  
1.33 946 1.44 973 1.55 999 1.67 1025 1.79 1050 1.90 1073 2.02 1098 2.14  
1.46 973 1.58 999 1.71 1024 1.83 1048 1.96 1072 2.09 1096 2.22 1119 2.34  
1.63 1001 1.75 1026 1.88 1051 2.01 1074 2.14 1099 2.27 1121 2.41 1143 2.55  
1001 1.82 1028 1.95 1054 2.08 1079 2.20 1103 2.34 1126 2.48 1148 2.62 1170 2.76  
1029 2.04 1055 2.17 1081 2.30 1105 2.43 1130 2.58 1154 2.72 1176 2.85 1199 3.01  
Table 17 -TSH 102 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
-
-
-
-
-
-
-
-
-
-
-
-
689 0.58 734 0.67 781 0.77 826 0.88 865 0.98 898  
1.07 928  
1.27 969  
1.16  
956 1.25  
982 1.33  
693 0.64 735 0.73 773 0.82 812 0.92 855 1.03 897 1.15 934  
1.38 999 1.49 1026 1.58  
711 0.75 743 0.82 781 0.91 819  
1.12 865 1.23 899 1.34  
828 1.23 857 1.31 883 1.39  
1.01  
853  
1.11  
886 1.21 925 1.34 964  
930 1.45 960 1.56 994  
1.47 1000 1.60 1034 1.73 1067 1.86  
1.68 1028 1.82 1063 1.96 1098 2.11  
735 0.89 770 0.97 799 1.04 830  
796  
1.14  
913  
1.48 945 1.60  
977 1.72 1006 1.84 1034 1.96 1061 2.08 1093 2.23 1125 2.38  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
1008 1.42 1033 1.51 1056 1.60 1079 1.69 1102 1.78 1125 1.87 1146 1.95 1168 2.04  
1052 1.68 1078 1.78 1101 1.88 1124 1.98 1146 2.08 1168 2.18 1188 2.27 1209 2.37  
1094 1.97 1120 2.08 1145 2.20 1168 2.31 1191 2.42 1213 2.53 1234 2.63 1254 2.74  
1129 2.26 1158 2.40 1185 2.53 1210 2.66 1234 2.78 1256 2.90 1278 3.03 1299 3.15  
1157 2.53 1188 2.70 1218 2.86 1245 3.01 1273 3.16 1297 3.31  
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
20  
RT-SVX20A-E4  
Installation  
Table 18 -TSD 120 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
789 0.93 822 1.03 856  
797 0.99 829 1.10 860 1.22 892  
844 1.21 874 1.32 903 1.44 932  
922 1.59 948 1.70 975  
972 1.90 997 2.02 1022 2.14 1046 2.27 1071 2.41 1095 2.55  
1.14 887  
1.34 922  
1.56 960  
1.25  
917 1.36  
945 1.47  
-
-
-
-
-
1.46 951 1.57  
979 1.69  
-
-
782  
1.01  
814  
1.11  
1.69 988 1.82 1015 1.95  
803  
1.14  
834 1.24 864 1.36 894 1.48  
1.82 1001 1.95 1028 2.09 1053 2.23  
803  
1.21 833 1.31 861 1.42 887 1.52  
916  
1.64 945 1.77  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
973  
1.60 999 1.72 1024 1.84 1048 1.97 1072 2.10 1095 2.23 1117 2.37 1140 2.51  
1007 1.82 1033 1.94 1059 2.07 1082 2.20 1107 2.34 1130 2.49 1152 2.63 1173 2.77  
1042 2.08 1068 2.21 1093 2.35 1117 2.48 1142 2.63 1164 2.76 1187 2.91 1209 3.06  
1078 2.38 1103 2.52 1128 2.66 1152 2.81 1176 2.95 1198 3.10 1221 3.25  
1119 2.70 1142 2.86 1166 3.02 1189 3.17 1212 3.33  
-
-
-
-
-
-
-
-
Table 19 -TSH 120 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
-
-
-
-
-
-
-
-
-
-
-
807 0.94 844 1.04  
886  
1.16 926 1.28 965  
1.41 1000 1.53 1029 1.64 1057 1.75  
-
792 0.99 829 1.08 865 1.19 898 1.30  
930 1.41 965 1.53 1002 1.67 1038 1.81 1072 1.95 1106 2.10  
986 1.73 1015 1.85 1044 1.98 1077 2.12 1111 2.28 1143 2.43  
802  
876  
950  
1.13  
833 1.22 860 1.29 890 1.38 923 1.50 956 1.62  
1.49 905 1.58 931 1.67 955 1.75 983 1.86 1014 1.99 1045 2.12 1072 2.25 1098 2.37 1125 2.51 1152 2.65 1182 2.81  
1.91 977 2.02 1002 2.11 1025 2.20 1048 2.30 1074 2.42 1102 2.56 1131 2.71 1156 2.84 1181 2.98 1205 3.12 1229 3.27  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
1084 1.86 1108 1.96 1132 2.06 1155 2.17 1177 2.27 1198 2.37 1219 2.48 1239 2.58  
1134 2.22 1160 2.35 1185 2.47 1209 2.59 1231 2.70 1252 2.82 1274 2.94 1295 3.06  
1174 2.58 1204 2.74 1232 2.90 1260 3.05 1283 3.18 1306 3.32  
-
-
-
-
-
-
-
-
-
-
-
-
1211 2.97 1241 3.14 1270 3.31  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
21  
Installation  
Table 20 -YSD 060 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1043 0.62 1078 0.67 1113 0.72 1145 0.77 1177 0.82  
1066 0.70 1103 0.76 1137 0.82 1169 0.87 1202 0.93 1232 0.98  
1052 0.73 1089 0.79 1126 0.85 1162 0.92 1196 0.98 1229 1.05 1260 1.11 1289 1.17  
1051 0.82 1087 0.87 1122 0.92 1156 0.98 1190 1.03 1224 1.10 1257 1.17 1288 1.24 1320 1.32  
-
-
-
-
1055 0.90 1093 0.97 1127 1.03 1160 1.09 1193 1.15 1225 1.20 1256 1.26 1288 1.32  
-
-
-
-
-
-
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
1208 0.87 1238 0.93 1268 0.98  
1262 1.04 1290 1.09 1319 1.15  
1319 1.24 1347 1.30  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Table 21 -YSH 060 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1069 0.63 1111 0.68 1151 0.74 1189 0.80 1225 0.87 1260 0.93 1293 0.99  
1056 0.66 1100 0.73 1141 0.79 1180 0.85 1218 0.92 1255 0.98 1290 1.05 1324 1.12 1357 1.19  
1033 0.70 1083 0.77 1131 0.84 1176 0.91 1216 0.98 1253 1.05 1289 1.13 1323 1.20 1357 1.27  
-
-
-
-
-
-
-
-
-
-
-
-
1072 0.83 1117 0.90 1163 0.98 1209 1.06 1251 1.14 1292 1.21 1329 1.29  
1161 1.06 1203 1.14 1245 1.23 1287 1.31  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
1324 1.06 1355 1.13 1383 1.20  
1390 1.26  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
22  
RT-SVX20A-E4  
Installation  
Table 22 -YSD 072 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
820 0.54 859 0.60 896 0.66 932 0.72 968 0.78 1000 0.84  
814 0.58 854 0.64 891 0.71 928 0.78 963 0.84 996 0.91 1028 0.98  
814 0.64 853 0.70 890 0.77 926 0.84 961 0.91 994 0.98 1027 1.05 1058 1.13  
815 0.70 857 0.77 894 0.84 929 0.91 963 0.98 996  
1.06 1028 1.14 1060 1.22 1090 1.29  
818 0.77 860 0.85 899 0.93 936 1.01  
970 1.08 1003 1.16 1035 1.24 1066 1.32 1096 1.40 1125 1.48  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
kW  
3
m /h  
kW  
kW  
RPM  
3260  
3670  
4080  
4490  
4890  
1033 0.90 1063 0.96 1094 1.03  
1061 1.05 1091 1.12 1121 1.18  
1090 1.21 1118 1.28 1149 1.36  
1120 1.38 1150 1.46 1178 1.54  
1155 1.57 1181 1.66 1210 1.75  
Table 23 -YSH 072 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
824 0.52 866 0.59 907 0.65 947 0.71 986 0.78 1023 0.84 1059 0.92  
-
826 0.57 865 0.64 903 0.71 943 0.78 979 0.84 1017 0.91 1053 0.98 1087 1.06  
-
-
836 0.64 874 0.70 911 0.77 947 0.84 982 0.92 1017 1.00 1051 1.07 1085 1.15 1119 1.23  
847 0.72 888 0.80 924 0.86 959 0.93 993 1.00 1026 1.08 1058 1.17 1089 1.25 1122 1.34 1153 1.42  
818  
0.74 858 0.81 900 0.88 940 0.97 977 1.05 1010 1.13 1042 1.20 1073 1.27 1104 1.36 1133 1.45 1163 1.54 1192 1.64  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
1093 0.98 1126 1.06 1156 1.12  
1121 1.13 1153 1.21 1185 1.29  
1151 1.30 1182 1.38 1214 1.47  
1184 1.50 1215 1.59  
1221 1.72  
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
23  
Installation  
Table 24 -YSD 090 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
869 0.73 906 0.80 941 0.87 976 0.94 1009 1.01 1042 1.09 1073 1.17  
887 0.85 922 0.92 958 0.99 991 1.07 1024 1.14 1055 1.22 1086 1.30 1117 1.39  
865 0.89 905 0.98 943 1.06 979 1.15 1012 1.23 1044 1.31 1075 1.39 1105 1.47 1134 1.56 1163 1.65  
1.13 965 1.22 1001 1.32 1036 1.41 1068 1.50 1099 1.59 1129 1.68 1157 1.77 1185 1.86 1212 1.95  
1.24 963 1.33 995 1.42 1028 1.51 1061 1.61 1093 1.71 1126 1.82 1157 1.92 1185 2.02 1212 2.11 1239 2.21 1265 2.31  
858 0.97 894 1.05 929  
930  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
1104 1.24 1134 1.32 1163 1.40  
1146 1.47 1174 1.56 1203 1.65  
1191 1.74 1218 1.83 1245 1.92  
1238 2.04 1265 2.14 1292 2.24  
1290 2.40 1316 2.51 1340 2.61  
Table 25 -YSH 090 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
-
-
-
-
-
-
851 0.67 889 0.73 926 0.80 962 0.88 997 0.95 1031 1.03 1067 1.11 1101 1.19 1134 1.26  
880 0.80 919 0.88 955 0.94 989 1.01 1022 1.09 1054 1.17 1086 1.26 1117 1.35 1148 1.43 1180 1.52  
1.12 1023 1.21 1056 1.28 1086 1.36 1116 1.43 1146 1.52 1175 1.62 1204 1.72 1232 1.81  
985 1.22 1023 1.30 1058 1.40 1092 1.51 1124 1.60 1154 1.68 1182 1.77 1210 1.85 1237 1.94 1264 2.04 1290 2.14  
1029 1.47 1061 1.55 1096 1.64 1130 1.74 1162 1.85 1193 1.96 1222 2.06 1250 2.16 1276 2.25 1302 2.34 1327 2.43 1352 2.53  
-
-
-
-
869 0.87 910 0.94 950 1.03 989  
949 1.14  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
1166 1.34 1197 1.42 1229 1.50  
1210 1.60 1241 1.69 1269 1.78  
1260 1.91 1287 2.00 1316 2.10  
1316 2.25 1342 2.36 1367 2.46  
1376 2.64 1401 2.75 1425 2.87  
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
24  
RT-SVX20A-E4  
Installation  
Table 26 -YSD 102 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
787 0.85 819 0.96 850  
1.06 879  
1.23 918  
1.44 959  
1.69 999  
1.17  
907 1.27  
934 1.39  
971 1.58  
-
-
-
-
794 0.92 827 1.02 859  
1.13 890  
1.34 946 1.46  
-
-
-
-
805 1.00 837  
1.11  
869 1.22 900 1.33 929  
1.56 986 1.68 1011 1.80  
1.81 1025 1.94 1051 2.06  
792 1.00 823  
1.10  
854 1.21 884 1.33  
914  
1.45 943 1.57 971  
786  
1.03 818  
1.14  
848 1.24 877 1.34 905 1.46 933 1.58  
961 1.71 988 1.84 1015 1.97 1041 2.10 1067 2.23 1092 2.36  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
960  
997  
1.50 987 1.62 1013 1.73 1038 1.85 1064 1.97 1087 2.09 1111 2.21 1134 2.34  
1.70 1023 1.83 1047 1.95 1070 2.08 1094 2.21 1117 2.34 1140 2.47 1163 2.60  
1037 1.93 1061 2.06 1085 2.19 1107 2.33 1130 2.46 1151 2.60 1174 2.75 1194 2.88  
1077 2.19 1100 2.32 1123 2.46 1147 2.61 1168 2.75 1189 2.89 1211 3.04 1231 3.19  
1117 2.50 1140 2.64 1164 2.78 1187 2.92 1208 3.07 1229 3.22  
-
-
-
-
Table 27 -YSH 102 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
-
-
-
-
-
-
-
787 0.79 831 0.89 869 0.99 901  
798 0.88 841 1.00 883 1.11 923 1.23 958 1.35 989 1.45 1017 1.55 1045 1.65 1070 1.75 1094 1.85  
1.14 898 1.25 937 1.37 975 1.51 1011 1.64 1045 1.77 1075 1.89 1103 2.01 1128 2.12 1152 2.23  
1.23 899 1.34 930 1.45 961 1.56 994 1.68 1028 1.82 1063 1.96 1097 2.11 1129 2.26 1159 2.40 1186 2.53 1210 2.65  
1.57 970 1.70 999 1.81 1027 1.93 1055 2.05 1085 2.19 1118 2.34 1150 2.50 1181 2.66 1211 2.82 1239 2.97 1267 3.13  
1.08 931  
1.17 959  
1.26 986  
1.35 1011 1.43 1036 1.52  
-
-
-
793 0.94 830 1.04 863  
865  
937  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
4620  
5200  
5780  
6350  
6930  
1059 1.61 1082 1.69 1104 1.78 1127 1.87 1149 1.96 1170 2.05 1191 2.14 1212 2.24  
1117 1.95 1139 2.05 1161 2.15 1182 2.24 1203 2.35 1222 2.44 1243 2.54 1262 2.64  
1176 2.34 1198 2.45 1219 2.56 1241 2.67 1261 2.78 1280 2.88 1299 2.99 1319 3.11  
1233 2.78 1256 2.90 1278 3.03 1298 3.15 1319 3.27  
1291 3.27  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
25  
Installation  
Table 28 -YSD 120 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
891 1.26 921  
1.37 949  
1.66 999  
1.49  
976 1.61 1001 1.73  
-
-
913  
1.42 942 1.54 971  
1.78 1025 1.90 1052 2.03  
-
-
913  
976  
1.48 941 1.60  
969 1.73 997 1.86 1024 1.99 1050 2.12 1076 2.26 1101 2.39  
895 1.48 923 1.59 949 1.70  
1.83 1003 1.96 1029 2.10 1054 2.24 1079 2.38 1104 2.53 1129 2.67 1153 2.81  
939  
1.75 967 1.87 992 1.99 1017 2.12 1042 2.24 1066 2.38 1090 2.52 1114 2.67 1138 2.83 1161 2.98 1184 3.14 1207 3.30  
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
1027 1.86 1051 1.99 1075 2.12 1098 2.25 1120 2.38 1143 2.52 1166 2.66 1189 2.80  
1076 2.17 1100 2.30 1122 2.44 1145 2.58 1167 2.73 1188 2.87 1210 3.02 1230 3.17  
1126 2.53 1149 2.67 1172 2.81 1194 2.96 1216 3.12 1236 3.26  
-
-
-
-
-
-
-
-
-
-
-
-
1176 2.96 1200 3.11 1222 3.26  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Table 29 -YSH 120 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
-
-
-
-
-
-
-
-
-
-
-
-
924 1.28 962 1.40  
998 1.52 1028 1.64 1055 1.74 1082 1.85 1107 1.95 1131 2.06  
921 1.37 955 1.49 992 1.63 1028 1.77 1063 1.91 1096 2.05 1126 2.19 1153 2.31 1178 2.43 1202 2.55  
943  
1.57 973 1.68 1002 1.80 1031 1.92 1062 2.06 1096 2.21 1129 2.36 1161 2.52 1192 2.68 1222 2.84 1249 2.99 1273 3.13  
1031 2.06 1060 2.19 1086 2.32 1113 2.45 1139 2.57 1167 2.73 1198 2.90 1228 3.07 1257 3.24  
-
-
-
-
-
-
-
-
-
-
-
-
1119 2.58 1146 2.79 1171 2.93 1195 3.07 1219 3.21 1243 3.36  
-
-
-
-
-
-
325  
350  
375  
400  
425  
450  
475  
500  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
kW  
5440  
6120  
6800  
7480  
8160  
1154 2.16 1176 2.27 1197 2.37 1218 2.47 1238 2.58 1257 2.68 1276 2.78 1296 2.89  
1224 2.67 1247 2.79 1268 2.91 1288 3.02 1308 3.14 1328 3.26  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1296 3.26  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
26  
RT-SVX20A-E4  
Installation  
Table 30 - WSD 060 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
933 0.47 975 0.53 1014 0.58 1050 0.63 1085 0.68 1118 0.72  
892 0.48 935 0.52 976 0.57 1016 0.62 1056 0.68 1093 0.74 1128 0.80 1160 0.86  
904 0.55 945 0.60 985 0.65 1023 0.70 1061 0.75 1098 0.80 1135 0.86 1170 0.93 1203 1.00  
913 0.63 959 0.68 1001 0.74 1038 0.80 1074 0.85 1109 0.90 1143 0.96 1177 1.01 1212 1.07 1244 1.14  
933 0.74 972 0.78 1014 0.84 1056 0.90 1094 0.97 1128 1.03 1160 1.09 1193 1.15 1225 1.20 1256 1.26 1287 1.32  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
1151 0.78 1183 0.83 1214 0.88  
1192 0.91 1223 0.97 1252 1.02  
1235 1.06 1265 1.12 1295 1.19  
1276 1.21 1308 1.29  
-
-
-
-
-
-
-
-
Table 31 - WSH 060 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
941 0.47 990 0.52 1034 0.58 1077 0.64 1119 0.70 1158 0.75 1196 0.82 1231 0.88  
937 0.52 992 0.58 1043 0.65 1088 0.71 1130 0.77 1169 0.83 1207 0.90 1244 0.96 1280 1.03  
945 0.58 995 0.65 1045 0.72 1094 0.79 1141 0.86 1185 0.93 1224 1.00 1260 1.07 1295 1.14 1330 1.21  
901 0.60 958 0.67 1009 0.73 1057 0.80 1101 0.88 1146 0.95 1192 1.03 1235 1.11 1277 1.18 1314 1.26  
973 0.76 1026 0.84 1075 0.91 1120 0.98 1163 1.06 1204 1.14 1245 1.23  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
2720  
3060  
3400  
3740  
4080  
1265 0.94 1298 1.00 1330 1.07  
1314 1.10 1346 1.16 1380 1.24  
1363 1.28  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
27  
Installation  
Table 32 - WSD 072 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
705 0.38 751 0.44 794 0.50 835 0.56 874  
0.62 912 0.68 948 0.75 982 0.81  
736 0.47 779 0.53 821 0.59 860 0.65 898 0.72 936 0.79 971 0.86 1004 0.93  
720 0.50 768 0.56 810 0.63 850 0.70 888 0.76 925 0.83 961 0.91 995 0.98 1027 1.06  
709 0.53 753 0.60 799 0.67 843 0.75 882 0.82 919 0.89 954 0.97 987  
1.04 1021 1.12 1053 1.20  
705 0.58 749 0.64 791 0.72 832 0.79 874 0.88 914 0.96 950 1.04 985  
1.12 1018 1.20 1050 1.28 1081 1.36  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
1015 0.87 1047 0.93 1079 0.99  
1037 1.00 1069 1.07 1099 1.14  
1060 1.13 1091 1.21 1121 1.29  
1085 1.28 1115 1.36 1145 1.45  
1112 1.44 1140 1.53 1170 1.62  
Table 33 - WSH 072 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
750 0.42 794 0.48 838 0.55 882 0.61 923 0.67 963 0.73 1002 0.80 1038 0.87  
695 0.40 745 0.46 789 0.51 830 0.58 871 0.65 910 0.72 950 0.79 987 0.86 1025 0.93 1060 1.00  
737 0.49 787 0.57 831 0.64 870 0.70 908 0.76 944 0.84 980 0.92 1015 0.99 1051 1.07 1085 1.15  
740 0.55 781 0.61 828 0.68 872 0.77 911 0.84 948 0.91 983 0.98 1016 1.06 1049 1.14 1081 1.23 1113 1.31  
990 1.08 1023 1.15 1055 1.23 1086 1.31 1117 1.40 1147 1.49  
761 0.64 795 0.70 828 0.76 871 0.83 913 0.91 953 1.00  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
3260  
3670  
4080  
4490  
4890  
1073 0.94 1107 1.01 1140 1.09  
1096 1.07 1129 1.15 1162 1.23  
1118 1.23 1152 1.31 1185 1.39  
1146 1.40 1178 1.49 1208 1.57  
1178 1.59 1206 1.68 1236 1.77  
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
28  
RT-SVX20A-E4  
Installation  
Table 34 - WSD 090 Available static pressure  
External Static Pressure (Pa)  
25  
50  
75  
100  
125  
150  
175  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
768 0.56 810 0.63 850 0.70 888 0.76 925 0.83 961 0.91 995 0.98 1027 1.06  
763 0.63 807 0.70 850 0.78 889 0.85 926 0.93 961 1.00 995 1.08 1027 1.15 1059 1.23  
770 0.71 810 0.78 849 0.86 890 0.95 929 1.03 967  
1.12 1000 1.20 1034 1.28 1065 1.36 1095 1.45  
782 0.83 823 0.90 861 0.97 897 1.05 933 1.12  
969 1.23 1006 1.33 1041 1.42 1074 1.52 1104 1.60 1134 1.70  
798 0.94 838 1.04  
876  
1.12  
913  
1.20 947 1.28 980 1.37 1013 1.47 1047 1.57 1080 1.67 1113 1.77 1144 1.88 1173 1.98  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
1060 1.13 1091 1.21 1121 1.29  
1091 1.32 1121 1.40 1151 1.49  
1125 1.53 1154 1.62 1183 1.71  
1163 1.79 1191 1.88 1217 1.97  
1202 2.08 1229 2.17 1256 2.27  
Table 35 - WSH 090 Available static pressure  
External Static Pressure (Pa)  
150 175  
25  
50  
75  
100  
125  
200  
225  
250  
275  
300  
Fan  
RPM  
Fan  
RPM  
3
m /h  
RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW RPM kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
-
-
-
-
-
-
-
787 0.57 831 0.64 870 0.70 908 0.76 944 0.84 980 0.92 1015 0.99 1051 1.07 1085 1.15  
753 0.59 792 0.65 839 0.72 882 0.80 922 0.88 958 0.95 992 1.02 1026 1.10 1058 1.18 1090 1.27 1122 1.36  
1.08 1011 1.18 1044 1.25 1076 1.33 1106 1.41 1136 1.49 1165 1.59  
988 1.22 1026 1.31 1062 1.42 1096 1.52 1129 1.61 1158 1.69 1187 1.78 1214 1.86  
1.20 963 1.28 990 1.35 1016 1.43 1045 1.51 1079 1.59 1115 1.69 1148 1.80 1180 1.91 1210 2.02 1239 2.12 1266 2.21  
-
789 0.71 822 0.78 853 0.84 892 0.91 935 0.99 974  
862 0.93 892 1.01 921 1.08 951 1.15  
934  
325  
350  
375  
Fan  
RPM  
Fan  
RPM  
Fan  
RPM  
3
m /h  
kW  
kW  
kW  
4080  
4590  
5100  
5610  
6120  
1118 1.23 1152 1.31 1185 1.39  
1153 1.45 1185 1.53 1216 1.62  
1194 1.68 1223 1.78 1251 1.88  
1242 1.96 1269 2.06 1296 2.17  
1291 2.30 1317 2.39 1343 2.49  
Standard drive  
Oversize drive  
Note : Data includes pressure drops for standard filters and wet coils  
RT-SVX20A-E4  
29  
Installation  
Over current protection  
Appropriate connectors must be  
provided. Flexible pipe supports are  
required to prevent noise  
transmission in the building's  
structure. Ensure all the connections  
are tightened.  
Electrical connection  
The branch circuit feeding the unit  
must be protected in accordance  
with national or local codes and  
maximum unit amps indicated in  
Table 36.  
The electric panel is located in the  
unit compressor section. Remove  
the compressor access panel.The  
unit is designed to run with 400 V  
+/- 5%/50 Hz/ 3 ph.  
Note:  
Power wiring  
1. Earthing must be executed in  
compliance to national and local  
legislation.  
2. The machines are designed for a  
short-circuit current of 10 kA. In  
the event of a higher application,  
contact your local sales office.  
Factory supplied disconnect switch  
(option)  
The unit's power supply must be  
provided by 4-wire cable with cross-  
sectional areas complying with  
legislation.  
The disconnect switch is factory  
mounted. It is located in the  
compressor section. Mount the  
disconnect switch onto the exterior  
of the unit, between the condenser  
coil and the electrical panel (near  
the unit top corner). Wire the  
disconnect switch from the power  
terminal block in the panel to the  
disconnect switch with the wire  
bundle provided by following the  
electrical diagram found in the unit.  
The power supply cables must be  
laid in leak-tight pipes and pass  
through the bottom of the electric  
panel for units without electric  
heaters and through the heat  
section when electric heater option  
is selected.The cables must not be  
taut.  
Compressor electrical phasing  
Proper phasing of the electrical  
power wiring is critical for proper  
operation and reliability of the scroll  
compressor and fans.  
Proper rotation of the scroll  
compressor must be established  
before the unit is started.This is  
accomplished by confirming that  
the electrical phase sequence of the  
power supply is correct.The motor  
is internally connected for clockwise  
rotation with the inlet power supply  
phased A,B,C.  
The direction of rotation may be  
reversed by interchanging any two  
of the line wires. It is this possible  
interchange of wiring that makes a  
phase sequence indicator necessary  
if the operator is to quickly  
Figure 13 - Power supply  
determine the phase rotation of the  
compressor motor.  
1
1 = Power supply  
30  
RT-SVX20A-E4  
Installation  
The "ABC" indicator on the face of  
the phase indicator will glow if  
phase is ABC for terminals L1, L2,  
L3.  
WARNING! Disconnect all power,  
including remote disconnects, and  
discharge all capacitors before  
servicing.  
IMPORTANT! After completion of  
wiring, check all electrical  
Follow proper lockout/tagout  
procedures to ensure the power  
cannot be inadvertently energized.  
After power is removed, allow  
4 minutes for capacitors to  
connections, and ensure all  
connections are tight. Replace and  
secure all electrical box covers and  
access doors before leaving unit or  
connecting power to circuit  
supplying the unit.  
discharge. Verify with an  
appropriate voltmeter that all  
capacitors have discharged. Failure  
to disconnect power and/or  
discharge capacitors before  
servicing could result in death or  
serious injury. For additional  
information regarding the safe  
discharge of capacitors, seeTrane  
Service Bulletin PROD-SVB06A.  
CAUTION! Units with scroll  
compressors are not equipped with  
crankcase heaters.  
Table 36 - Unit wiring  
Standard Supply Fan Motor  
Oversized Supply Fan Motor  
Maximum Overcurrent  
Maximum Overcurrent  
Main power  
supply  
(V/Ph/Hz)  
Minimum Circuit  
Protective Device (Fuse  
Ampacity  
Minimum circuit  
Protective Device (Fuse  
ampacity  
Unit Model  
and size  
or Circuit Breaker)  
(A)  
or Circuit Breaker)  
(A)  
(A)  
(A)  
Without Electric heat option  
TSD/TSH 060  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
18,2  
24,4  
26,2  
28,3  
32,6  
18,2  
24,4  
26,2  
28,3  
32,6  
20,1  
23,1  
26,2  
32  
32  
40  
40  
40  
32  
32  
40  
40  
40  
32  
32  
40  
19,3  
25,5  
27,2  
29,3  
32,6  
-
32  
32  
40  
40  
40  
-
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
25,5  
27,2  
29,3  
32,6  
21,2  
24,2  
27,2  
32  
40  
40  
40  
32  
32  
40  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
With Electric heat  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
26,4  
37,8  
50  
50  
50  
63  
63  
50  
63  
63  
27,5  
38,9  
40,2  
51,1  
51,8  
41,9  
56,3  
59,3  
50  
50  
50  
63  
63  
50  
63  
63  
39,2  
50,1  
51,8  
40,8  
55,2  
58,3  
TSD/TSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
RT-SVX20A-E4  
31  
Installation  
Table 37 - Compressor and condenser motors  
Compressor motor  
Condensor fan motor  
Main  
Locked  
rotor  
amps  
(A)  
Main  
power  
supply  
(V)  
Locked  
rotor  
amps  
(A)  
Number  
of  
motors  
Number  
of  
phases  
Motor  
HP  
(kW)  
Rated  
amps  
(A)  
Number  
of  
motors  
Number  
of  
phases  
Motor  
HP  
(kW)  
Rated  
amps  
(A)  
Unit Model  
and size  
power  
supply  
(V)  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
1
1
1
2
2
1
1
1
2
2
1
1
1
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
3
3
3
3
3
3
3
3
3
3
3
3
3
4,2  
5,6  
10,3  
13,7  
74  
95  
1
1
1
2
2
1
1
1
2
2
1
1
1
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
1
1
1
1
1
1
1
1
1
1
1
1
1
0,3  
1.0  
3.0  
3.0  
3.0  
3.0  
1.0  
3.0  
3.0  
3.0  
3.0  
1
2,8  
7,1  
7,1  
7,1  
7,1  
2,8  
7,1  
7,1  
7,1  
7,1  
2,8  
7,1  
7,1  
0,56  
0,56  
0,56  
0,56  
0,3  
6,2  
14,3  
100  
4.5 / 2.8  
10 / 7.5  
74 / 48  
4.5 / 3.5 10.7 / 9.2 74 / 62  
4,2  
5,6  
10,3  
13,7  
74  
95  
0,56  
0,56  
0,56  
0,56  
0,3  
6,2  
14,3  
100  
4.5 / 2.8  
10 / 7.5  
74 / 48  
4.5 / 3.5 10.7 / 9.2 74 / 62  
4,5  
5
11,8  
12,6  
14,3  
74  
101  
100  
0,56  
0,56  
3
6,2  
3
Table 38 - Supply fan motor  
Standard supply fan motor  
Oversized supply fan motor  
Main  
power  
supply  
(V)  
Locked  
rotor  
amps  
(A)  
Main  
power  
supply  
(V)  
Locked  
rotor  
amps  
(A)  
Number  
Number  
of  
phases  
Motor  
HP  
(kW)  
Rated  
amps  
(A)  
Number  
of  
motors  
Number  
of  
phases  
Motor  
HP  
(kW)  
Rated  
amps  
(A)  
Unit Model  
of  
and size  
motors  
TSD/TSH 060  
TSD/TSH 072  
TSD/TSH 090  
TSD/TSH 102  
TSD/TSH 120  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
WSD/WSH 060  
WSD/WSH 072  
WSD/WSH 090  
1
1
1
1
1
1
1
1
1
1
1
1
1
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
400  
3
3
3
3
3
3
3
3
3
3
3
3
3
1,1  
1,1  
1,5  
1,5  
2,2  
1,1  
1,1  
1,5  
1,5  
2,2  
1,1  
1,1  
1,5  
3,2  
3,2  
4,3  
4,3  
5,3  
3,2  
3,2  
4,3  
4,3  
5,3  
3,2  
3,2  
4,3  
25,3  
25,3  
36,4  
36,4  
57.0  
-
1
1
1
-
-
-
3
3
3
-
-
-
-
400  
400  
400  
-
1,5  
2,2  
2,2  
-
4,3  
5,3  
5,3  
-
36,4  
57.0  
57.0  
-
25,3  
25,3  
36,4  
36,4  
57.0  
-
-
-
-
-
-
1
1
1
-
400  
400  
400  
-
3
3
3
-
1,5  
2,2  
2,2  
-
4,3  
5,3  
5,3  
-
36,4  
57.0  
57.0  
-
25,3  
25,3  
36,4  
-
-
-
-
-
-
1
1
400  
400  
3
3
1,5  
2,2  
4,3  
5,3  
36.4  
57.0  
32  
RT-SVX20A-E4  
Controls  
CAUTION!The unit 24 V transformer  
must not be used to power  
accessories mounted on site, other  
than those proposed byTrane.  
Control wiring  
The control circuit is 24 V AC. Unit  
includes a 400/24 V transformer.  
WARNING!The unit disconnect  
switch must be opened and locked  
open. Risk of injury and  
electrocution.  
Unit controlled by thermostat  
Figure 14 -Thermostat wiring  
J7  
J6  
RT-SVX20A-E4  
33  
Controls  
TraneTHS01,THS02,THP01 and  
THP02Thermostats are directly  
connected to RTRM board  
(J7 connector).  
Unit controlled by BAS  
Each unit must be equipped with a  
TCI-R board. A communication bus  
(twisted shielded pair) must link  
eachTCI-R to theTrane RoofTop  
Manager (RTM) or to the  
TraneTHS03 andTHP03 thermostats  
are directly connected to RTRM  
board (J6 connector).  
communication gateway (in the  
case of an external BAS). Connect  
one temperature sensor to each  
Install the electrical link between the  
thermostat (thermostat terminal  
strip) and the unit (J6 or  
J7 connector) in compliance with  
the interconnection diagram.The  
low voltage wiring must not be laid  
in the same pipes as the power  
cables.  
®
unit. LonTalk communication  
interface LTCl-R board allows ICS  
communication between a  
ReliaTel™ unit and LonTalk  
®
communication applications.  
Unit controlled byTracker™  
supervisor  
The sizes and lengths of the  
thermostat connection wires are  
given inTable 39.The total  
resistance of these control cables  
must not exceed 5 ohms. If the  
resistance exceeds this value the  
thermostat may not operate with  
the same precision.  
The units must also be equipped  
with theTCI-R communication  
board. One remote sensor is  
required on each unit for a constant  
flow volume. In the case of a  
variable flow installation  
(VariTrac™) these sensors must not  
be installed. A twisted shielded pair  
must be used for the  
Table 39 - Zone sensor wire and  
maximum length  
communication link.The main  
functions of theTracker™ supervisor  
are control of setpoints, timetable  
management (Programming) and  
display of faults. For more details  
refer to the supervisor  
Maximum  
Wire size  
wire lengh  
(mm²)  
(m)  
0,33  
0,5  
0,75  
1,3  
2
45  
76  
115  
185  
300  
documentation.  
34  
RT-SVX20A-E4  
Controls  
The CO2 sensor is designed to  
operate with a nominal 24 Vac  
supply.The power supply should  
maintain the voltage between 20 to  
26 Vac.  
CO2 sensors  
Wall-mounted and duct-mounted  
CO2 sensors  
Power supply requirements  
CAUTION! Make sure that you  
connect the power wire only to the  
24V terminal. Connecting the power  
wire to the output terminal may  
result in equipment damage.  
Table 41 - CO2 sensor wire size  
Maximum  
Wire size  
wire lengh  
(mm²)  
(m)  
0,25  
0,5  
1
50  
100  
200  
Table 40 - Specifications  
Wall-mounted  
Duct-mounted  
Measuring range CO2  
Accuracy at 25°C  
0-2000 ppm  
< +/- [40 ppm CO2 + 3% of  
reading]  
(included repeatability and  
calibration uncertainty)  
< +/- [30 ppm CO2 + 2% of  
reading]  
(included repeatability and  
calibration uncertainty)  
Non-linearity  
< 1.0% full scale  
0.3% full scale/°C  
< 5.0% full scale/ 5 years  
5 years  
Temperature dependence of output  
Long-term stability  
Recommended calibration interval  
Response time  
1 minute (0-63%)  
Operating temperature  
Storage temperature  
15-35°C  
-5-45°C  
-20-70°C  
Humidity range  
0-85% relative humidity  
Airflow range  
0-10 m/s)  
Output signals (jumper selectable)  
Resolution of analog outputs  
0-10 Vdc  
10 ppm CO2  
Current output: max 500  
Voltage output: min. 1000  
Recommended external load  
Power supply  
Nominal 24 Vac  
< 5 VA  
Power consumption  
Warm-up time  
< 15 minutes  
Dimensions (mm)  
108 x 80 x 36  
80 x 80 x 200  
RT-SVX20A-E4  
35  
Controls  
Wiring the wall-mounted CO2  
sensor  
Wiring the duct-mounted CO2  
sensor  
1. Connect the common wire from  
the controller to the ground  
terminal (terminal 0) (Figure 16).  
2. For voltage output, connect the  
signal wire to terminal V.  
3. Connect the power according to  
the guidelines in Power supply  
requirements.  
DVC setpoint potentiometer on  
economizer module can be adjusted  
as follows:  
0% - 500ppm, 50% - 1000 ppm,  
100% - 1500ppm  
The outside air damper will  
modulate from minimum position  
setting to up to 100% while  
attempting to maintain the CO2  
setpoint.  
Figure 15 - Wall-mounted CO2 sensor wiring  
Figure 16 -Terminal connections and LED locations  
2
3
1
4
1 = Outer jumper  
2 = Power terminal  
3 = Ground terminal  
4 = Output terminals  
36  
RT-SVX20A-E4  
Controls  
Figure 17 - Wall-mounted CO2 sensor  
Mounting the wall-mounted sensor  
1. Select a proper location in the  
room to mount the CO2 sensor.  
Look for an interior wall with  
good air circulation,  
approximately 1.4 m from the  
floor.  
2. Remove the back plate from the  
sensor and thread the power  
wires and output signal wire  
through the hole in the back  
plate (Figure 17).  
For surface wiring, make cut-  
outs with pliers to the thinner  
section of the upper or lower  
edge of the back plate and to  
thread the wires through.  
1
3. Mount the back plate to the wall  
with screws. Note that the arrow  
on the back plate shows the  
mounting direction.  
4. On the circuit board, use the two  
jumpers next to the terminal  
block to set up the type of output  
(0-10 Vdc) (Figure 18).  
1 =Thinner section for cut-out  
5. Insert the circuit board in the  
back plate. (Figure 18.) Do not  
press the metal tube while  
inserting the circuit board.  
6. Connect the power and signal  
wires to the screw terminals of  
the circuit board. Figure 16  
shows the terminal locations.  
Figure 18 - Jumper settings  
RT-SVX20A-E4  
37  
Controls  
Mounting the duct-mounted CO2  
sensor  
1. Select a proper location on the  
duct to mount the CO2 sensor.  
2. Drill a 22-25 mm hole in the  
mounting surface for sensor  
insertion (Figure 19).  
3. Attach the mounting plate to the  
duct wall with four screws.  
4. Insert the sensor through the  
mounting plate, adjusting the  
depth for optimal air sensing.  
CO2 sensor maintenance  
This CO2 sensor has excellentThis  
CO2 sensor has excellent stability  
and requires no maintenance. In  
most environments the  
recommended calibration interval is  
five years. A trained service  
technician can use a portable CO2  
meter to certify sensor calibration.  
If, when checking the sensor, the  
reading differs too much from the  
reference value, the sensor can be  
recalibrated in the field. A  
calibration kit, software, and  
Figure 19 - Duct-mounted CO2 sensor  
diameter  
calibration gases are required. If  
certified accuracy is required, the  
sensor must be calibrated against  
accurate and traceable calibration  
gases in a laboratory. ConsultTrane  
BAS for further details.  
5
1 /8 in. (42 mm)  
7
/8 in. (22 mm)  
5
1 /8 in.  
(42 mm)  
Figure 20 - Duct-mounted CO2 sensor insertion depth  
1
1
1
2 /2 in. (64 mm)  
3 /8 - 5 /2 in. (80 - 140 mm)  
38  
RT-SVX20A-E4  
Controls  
Note:This potentiometer allows to  
adjust the permanent fresh air  
intake from 0 to 50%.  
Remote potentiometer  
To install the remote potentiometer,  
cut the jumper WL on the  
economizer ECA board, and connect  
the wires to J11 and J12.  
0 W corresponds to closed fresh air  
damper.  
270 W corresponds to 50% open  
fresh air damper.  
Figure 21 - Remote potentiometer dimensions  
Figure 22 - Remote potentiometer wiring  
1 = Remote potentiometer  
2 = ECA Board  
WH = White wire  
RD = Red Wire  
BU = Blue wire  
_____ Factory wiring  
------- Field wiring  
RT-SVX20A-E4  
39  
Controls  
Figure 24 - Connection of fire thermostat  
withTCI board  
Note: Do not permit element guard  
to touch internal parts. Do not  
locate sensor where the air  
Fire thermostat  
There are two sensors in the fire  
thermostat Kit: Sensor X13100040-  
01 is factory-set to open at 57°C,  
Sensor X13100040-02 is set to open  
at 115°C.  
circulation is restricted by baffles.  
At the selected location, cut a hole  
to clear element guard and drill  
holes for mounting screws  
according to Figure 23. Connect  
wires according to Figure 24.  
1
Sensors are mounted directly in the  
ductwork.They should be installed  
where elements can respond  
2
quickly to air temperature changes.  
If not possible, the sensor may be  
installed on a suitable bracket so  
the air is drawn across the element.  
Sensor X13100040-01 has to be  
mounted in the return air duct.  
Sensor X13100040-02 has to be  
mounted in the supply air duct.  
1 = Field-supplied emergency stop  
device  
2 = Remove factory-supplied jumper  
Figure 23 - Duct mounting of fire  
thermostat  
1 = Fire thermostat  
2 = Hole in the duct  
40  
RT-SVX20A-E4  
Controls  
Clogged filter detector  
Smoke detector  
This device is mounted in the  
indoor fan section.The sensor  
measures the difference in pressure  
before and after the filter section.  
The information is sent to theTHP03  
thermostat, to aTracker™ or to a  
BMS.The setting range is 40 to  
300 Pa.  
This device is used to detect smoke  
in the air stream. It includes a  
factory mounted detector connected  
to a central panel, both fitted in the  
fan section.  
When smoke is detected, it shuts off  
the unit. A dry contact is available  
on the control panel for a remote  
default.  
High temperature safety  
thermostat  
This additional safety device is a  
manual reset thermostat for gas  
fired units (YKD/YKH), required  
mainly by the French ERP  
regulation. It is located in the gas  
burner section. It stops the gas  
burner and the supply air fan when  
the supply air temperature rises to  
120°C.  
Figure 25- Clogged filter sensor  
Remote fault relay  
2
This is a factory mounted relay used  
to send alarm signals (dry contact)  
to a local BMS or a local control  
panel. With this relay, the  
compressor, heating, fan and power  
supply alarm output signals from  
the controller are reported to a  
single dry contact.  
1
3
4
1 = Secure with one screw  
2 = Route wire harness between coil blockoff and roof rib  
3 = Secure with pop-in wire tie  
4 = Remove filter if necessary  
RT-SVX20A-E4  
41  
Controls  
"THS" are non programmable  
thermostats, "THP" are  
programmable.  
Thermostats  
6 thermostats are available:  
THS01/THP01,THS02/THP02 and  
THS03/THP03.  
01 and 02 series are conventional  
thermostat, 03 series are dedicated  
to the controller.  
Table 42 -Thermostat features  
THS01  
THP01  
THS02  
THP02  
THS03  
THP03  
non-programmable  
programmable  
X
-
X
-
X
-
-
X
-
X
-
X
electronic  
X
X
X
X
X
X
unit control type design  
interface card needed  
for Cooling Only units  
for Heat Pump units  
for Gas Fired units  
Cooling stages  
electromech.  
electromech.  
electromech.  
electromech.  
Reliatel  
Reliatel  
-
-
-
-
-
-
-
-
X
-
X
-
X
X
X
2
X
X
X
2
X
-
X
-
X
2
X
2
2
2
auxiliary heating stages  
(elec. heater, HWC )  
2
2
1
1
2
2
heating stages  
(heat pump mode)  
none  
none  
1
1
1
1
liquid crystal display  
X
X
X
X
-
X
Note: thermostats are powered up by the rooftop control (24V)  
42  
RT-SVX20A-E4  
Controls  
Other accessories available  
Communication Interfaces  
Remote temperature sensor to be  
used withTHS/THP 01-02.  
TRANE Communication Interface  
(TCI-R) board  
TZS01: Remote room temperature  
sensor to be used withTHS/THP 03,  
Tracker or Varitrac systems.  
This is an electronic board, factory-  
mounted in the main control panel,  
needed to allow communication  
between aTRANE Integrated  
Comfort system (TRACKER or  
Varitrac CCP2) and the unit. (COM3-  
COM4)  
DTS: Duct temperature sensor to be  
used withTHS/THP 03.  
TZS02: Remote room temperature  
sensor with adjustable thumwheel  
setpoint to be used withTracker or  
Varitrac systems.  
LON Communication Interface  
(LCI-R) board  
TZS04: Room temperature sensor  
with adjustable thumbwheel and  
override button, to be used with  
Tracker or Varitrac systems.  
This is an electronic board, factory-  
mounted in the main control panel,  
needed to allow communication on  
®
a LonTalk Network at the unit level.  
Refer to separate documentation for  
more information.  
®
LonTalk Communication Interface  
(LCI-R) board allows Voyager units  
®
to communicate on a LonTalk  
Network at the unit level. Network  
variables are based on the  
®
LonMark . Space Comfort Controller  
Functional ProfileTemplate.The  
LCIV uses a FreeTopology  
transceiver FTT-10A.The FTT-10A  
transceiver supports non-polarity  
sensitive, free topology wiring,  
allowing the system installer to use  
star, bus, and loop architecture.The  
LCI-V can also be connected to an  
optional HighTemperature Limit  
Switch if installed with the rooftop  
unit. For more information, see  
attached manual LTCI-IN-1.  
RT-SVX20A-E4  
43  
Unit Options  
The hot water coil is factory  
Hot water coil  
mounted in the discharge section.  
Two holes are provided to connect  
the hot water coil.They are located  
at the base of the unit. Remove the  
central panel to access the coil,  
using an 8 mm wrench (the bolts  
are located on the bottom part of  
the panels).The tubes for entering  
and leaving water are equipped  
with a threaded female connector.  
(Down flow units only)  
In order to prevent water to freeze  
up in the coil during unoccupied  
period or shutdown limited period,  
a thermostat opens when there is a  
risk of freeze-up.The services of a  
water treatment specialist are  
recommended if water used can  
cause scaling deposits or erosion.  
Insulate all the water piping likely to  
be exposed to freezing  
temperatures in order to avoid  
freeze up of the coil and heat  
losses.The water distribution  
network must be fitted with vents in  
places where air is likely to be  
trapped.  
Water connection inlet/outlet:  
1 ¼" ISO R7.  
Installation and connection  
In order to prevent water to freeze  
up in the coil during unoccupied  
period or shutdown limited period,  
it is recommended to use ethylene  
glycol.The services of a water  
treatment specialist are  
recommended if water used can  
cause scaling deposits or erosion.  
Insulate all the water piping likely to  
be exposed to freezing  
temperatures in order to avoid  
freeze up of the coil and heat  
losses.The water distribution  
network must be fitted with vents in  
places where air is likely to be  
trapped.  
Table 43 - Ethylene glycol percentage  
Ethylene glycol  
Freezing point  
percentage  
(%)  
10  
(°C)  
-4  
Figure 26 - Hot water coil connections  
20  
-10  
44  
RT-SVX20A-E4  
Unit Options  
Electric Heater  
Soft Starter  
Electric heaters are fitted on the fan  
discharge.  
The soft starter is used to achieve a  
progressive supply fan start and a  
reduced starting current as well as  
the motor starting torque.This  
option is well adapted for textile  
duct applications. It is factory  
Heaters have two heating stages  
and provided with two types of  
overheat thermostats:  
Automatic reset thermostats  
which stop the electric heater  
when the air temperature rises to  
76°C. Automatic reset at 60°C. No  
alarm output available.  
installed in the main control panel.  
The soft starter gradually increases  
the voltage of the supply fan motor  
until it reaches full line voltage.  
The manual reset thermostat  
which stop the unit when the air  
temperature rises to 120°C. No  
alarm output available.  
The starting time can be adjusted  
from 0 to 40 seconds but the soft  
starter is factory set to the  
maximum starting time value,  
40 seconds.  
Figure 27 - Soft starter  
1
6
5
4
3
2
1 =Three phase mains connections  
2 = Motor connections  
3 = Settings  
4 = Status outputs  
5 = Controls  
6 = LEDs  
RT-SVX20A-E4  
45  
Unit Options  
This option includes for the hood  
itself, a wire mesh and a slidable  
damper.  
0 - 25% fresh air hood  
The 0-25% fresh air hood allows to  
introduce fresh air into the unit.  
The slidable damper has to be  
adjusted manually by removing the  
screws and sliding it off up or down  
(Figure 28).  
This is a manual device fitted on the  
back of the unit, sized for a  
maximum of 25% of the nominal  
rooftop air flow.  
The amount of fresh air introduced  
is then permanently fixed.  
Figure 28 - 0-25% manual fresh air hood  
1
3
2
1 = Intake hood  
2 = Wire mesh  
3 = Slidable damper  
46  
RT-SVX20A-E4  
Unit Options  
This option includes exhaust hoods  
and gravity dampers located in the  
return air section. When the  
pressure of the building increase,  
the gravity dampers open and  
relieve air to the outside.  
Barometric relief  
The barometric relief allows to  
minimize overpressure in the  
building caused by the introduction  
of fresh air.This option is typically  
installed when fresh air intake is  
below 25% of the nominal air flow  
and when the return air pressure  
drop is below 25Pa.  
If the return air duct pressure drop  
is higher than the building  
overpressure, the gravity dampers  
will not open.  
If the return air duct pressure drop  
is lower than the building  
overpressure, the gravity dampers  
will open and relieve air outside of  
the building.  
Figure 29 - Economizer flow chart with barometric relief  
S
R
S
E
R
F
F
Downflow version  
Horizontal flow version  
R = return  
S = supply  
F = fresh air  
E = exhaust  
RT-SVX20A-E4  
47  
Operation  
Figure 30 -Terminal strip  
The terminal strip for attaching the  
thermostat wires is located on the  
RTRM module in the control  
compartment.  
Operation with a  
conventional thermostat  
The ReliaTel module has  
conventional thermostat  
connections as well as Zone Sensor  
Module connections. When a  
conventional thermostat is  
controlling the unit, operation  
differs as follows:  
COM  
T
When the unit is operating from a  
conventional thermostat or other  
binary input, the economizer  
setpoint feature, relative to the  
cooling and heating setpoints, is  
lost.The economizer control is  
based strictly on a signal from the  
thermostat, but still maintains  
mixed air temperature control of  
53° 3°F when in the economizer  
mode.The economizer enable and  
disable function is still determined  
by the outside air sensor through  
the RTRM.  
X2  
Y2  
Supply AirTempering feature is  
not available. If outdoor air is  
being introduced through the  
equipment, discharge air  
temperature may be cold when  
not actively heating.  
W2  
G
Proportional Integral (PI) control  
W1/0  
Y1  
is not available.  
Zone Sensor Diagnostics are  
only available on the RTRM  
module on the J6 terminals,  
instead of at the Zone Sensor in  
the space.  
If a single-stage thermostat is used,  
only the economizer (if enabled) or  
the compressor (if economizer is  
disabled) will operate on a call for  
cooling. A twostage thermostat is  
required to achieve economizer  
operation and compressor  
R
Intelligent Fall-Back is not  
available. If a failure occurs in  
the device controlling the  
equipment, operation will cease.  
Heat Pump Smart Recovery and  
Smart Staging is not available.  
Heat Pump operation becomes  
more costly unless the generic  
control being applied can  
accomplish this.  
operation at the same time.  
Customers occasionally require  
operation with a conventional  
thermostat rather than a zone  
sensor. In some cases there is a  
preference for a specific thermostat  
model, and in others there is  
reluctance to adopt newer  
technology that may not be as well  
understood as conventional  
thermostats. In addition, non-Trane  
Building Controllers typically  
provide an interface to HVAC  
equipment based on a conventional  
thermostat interface. Units applied  
with this type of controller need to  
accept conventional thermostat  
inputs.  
With economizer enabled, aY1 call  
for 1st stage cooling will be the  
economizer.The damper will  
modulate between minimum  
position and 100% to maintain  
mixed air temperature at 53° 3°. At  
50°F the damper will be at  
Remote Sensing Capabilities are  
not available on most  
mechanical thermostats.  
minimum position. If the  
SpaceTemperature Averaging  
capabilities are not available on  
most mechanical thermostats.  
27½ to 50 VAV - Conventional  
thermostat input terminals are  
inactive.  
Built in Night Set Back and  
Unoccupied Functions function  
differently with a conventional  
mechanical thermostat.  
economizer is enabled, aY2 call for  
2nd stage cooling will start the first  
compressor if required. If the  
economizer is disabled, 1st stage  
(Y1) will be the first compressor. If  
the unit has two compressors, a call  
for 2nd stage cooling (Y2) will start  
the second compressor. When using  
a conventional thermostat, or other  
binary input, the ReliaTel controls  
will only allow two stages of  
cooling.  
A built-in algorithm which allows  
for automatic reset of the  
discharge air temperature while  
economizing is not available.  
48  
RT-SVX20A-E4  
Operation  
Conventional thermostat signals  
represent direct calls for unit  
functions. In their simplest  
applications, thermostat contacts  
directly control contactors or other  
load switching devices.This function  
provides inputs for the thermostat  
signals and processing to enhance  
reliability and performance.  
Logic is also provided to cause  
appropriate unit functions when  
inappropriate thermostat signals are  
provided. Simultaneous calls for  
heating and cooling will be ignored,  
and the fan will be turned on with a  
call for heating or cooling even if  
the fan request is not detected.  
Thermostat signals are as follows:  
R 24VAC power to thermostat  
Y1 Call for compressor 1 or first  
stage cooling  
Y2 Call for compressor 2 or 2nd  
stage cooling  
G Call for supply fan  
W1 Call for heat 1  
W2 Call for heat 2  
If the thermostat is immediately  
changed from a heating to a cooling  
call, or vice versa, there will be a  
five minute delay before the new  
call will initiate.  
Compressor protection and  
reliability enhancement functions  
(HPC, LPC, Minimum On/Off timers,  
etc.). All operate the same whether  
applied with zone sensors or a  
conventional thermostat.  
Heat pump only:  
X2 Call for emergency heat  
O Switchover valve On = cooling,  
Off = heating  
T Bias for heat anticipation for those  
mechanical thermostats that use  
this function  
Table 44  
Conventional thermostat Gas / Electric, Electric Heat  
Function when energized  
Input / connection  
G (fan)  
Fan runs continuously except during unoccupied mode (see next page)  
Compressor #1 runs or economizer operates  
Y1 (compressor 1 or economizer)  
Y2 (compressor 2 or compressor 1 while economizing)  
W1 (gas / electric heat first stage)  
W2 (gas / electric heat 2nd stage)  
Compressor #2 also runs, or #1 compressor runs while economizing  
1st stage heat  
2nd stage heat (if available)  
Table 45  
Conventional thermostat Heat pump  
Function when energized  
Input / connection  
Cooling mode  
G (fan)  
Fan runs continuously except during unoccupied mode (see next page)  
Reversing valve in cool mode  
O (reversing valve during cooling)  
Y1 + O (first cooling stage)  
Y1 +Y2 + O (2nd cooling stage)  
Heating mode  
Compressor #1 runs or economizer operates  
Compressor #2 also runs, or #1 compressor runs while economizing  
G (fan)  
Fan runs continuously except during unoccupied mode (see next page)  
Both compressors run  
Y1 (both compressors 1st heating stage)  
Y2 (during heating nothing happens)  
W2 (electric heat 2nd stage)  
X2 (electric heat only)  
No change  
2nd stage (electric) heat  
Electric heat only - no compressors  
T (provides heat anticipation signal for those mechanical  
thermostats that use this feature.  
If the thermostat used does not have a "T" terminal, disregard  
this terminal.)  
RT-SVX20A-E4  
49  
Operation  
Unoccupied mode  
Setting the economizer or  
0-50% motorized hood  
(option)  
The ECA board is mounted on the  
damper actuator.To access the ECA  
board on economizers:  
If the thermostat being used is  
programmable, it will have its own  
strategy for unoccupied mode and  
will control the unit directly. If a  
mechanical thermostat is being  
used, a field applied time clock with  
relay contacts connected to J6-11  
and J6-12 can initiate an  
Remove the filter access panel of  
the unit.  
The electrical power must be  
disconnected to set the  
unoccupied mode as follows:  
Contacts open: Normal occupied  
operation.  
minimum position and check the  
economizer.  
Contacts closed: Unoccupied  
operation as follows - Fan in  
auto mode regardless of fan  
switch position. Economizer  
closes except while economizing  
regardless of minimum position  
setting.  
Disconnect the power supply,  
put the thermostat fan selector  
to "ON" and the "HEAT/COOL"  
selector to "OFF".This puts the  
damper in the minimum  
ventilation position.  
To set the required minimum  
ventilation air position, turn the  
dial on the ECA clockwise to  
increase ventilation, or anti-  
clockwise to decrease ventilation.  
The damper will open at this  
setting whenever the fan circuit  
is powered up (see Figure 25).  
When the arrow on the dial's  
adjustment screw is pointing to  
8 o'clock, the minimum position  
is roughly 0%. When the dial is  
pointing to 12 o'clock it is  
roughly 25%, and when the dial  
is pointing to 4 o'clock it is  
roughly 50% (see figure 25).  
Cooling/Economizer Operation  
If unit does not have an economizer,  
the Cool/Econ Stage 1 and Stage 2  
will call directly for mechanical  
cooling (compressor) stages. If the  
unit has an economizer, the  
Cool/Econ stages will function as  
shown inTable 46.  
Table 46 - Cooling/Economizer Operation withThermostat  
OK to  
Thermostat Thermostat Call for Economizer Compressor Staging  
Economize?  
Y1  
Y2  
Cooling  
Request  
No  
No  
On  
Off  
Inactive  
Compressor Output 1  
Off  
On  
On  
On  
Inactive  
Inactive  
Compressor Output 2  
Compressor  
Outputs 1 & 2  
No  
Yes  
Yes  
Yes  
On  
Off  
On  
Off  
On  
On  
Active  
Active  
Active  
Off  
Compressor off  
Compessor  
Notes:  
40 to 50 ton CV only  
This unit has 3 stages of cooling if using a zone sensor. If using a conventional thermostat it has 2 stages as  
follows:  
Y1 = 1st stage  
Y1 +Y2 = 3rd stage  
VAV  
Thermostat inputs are ignored on VAV units.  
50  
RT-SVX20A-E4  
Operation  
Table 47 - ECA board LED  
To check the damper is functioning  
correctly, the ECA is equipped with  
an indicator light in the middle of  
the board.This light operates as in  
Table 42.  
OFF:  
No Power or Failure  
ON:  
Normal, OK to Economize  
Normal, Not OK to  
Economize  
Slow Flash:  
Fast Flash:  
Pulse Flash:  
1 Flash:  
Communications Failure  
Error Code  
Actuator Fault  
2 Flashes:  
3 Flashes:  
4 Flashes:  
5 Flashes:  
6 Flashes:  
7 Flashes:  
8 Flashes:  
9 Flashes:  
10 Flashes:  
11 Flashes:  
CO2 Sensor  
RA Humidity Sensor  
RA Temp Sensor  
OA Quality Sensor  
OA Humidity Sensor  
OA Temp Sensor  
MA Temp Sensor  
RAM Fault  
Figure 31 - Minimum fresh air adjustment  
+
ROM Fault  
2-10 VDC  
FEEDBACK  
INPUT  
1
2
+
-
POWER EXHAUST  
CONTACTS  
EXF  
1
EEPROM Fault  
1
2
MIXED AIR SENSOR INPUT  
COMMON  
2-10 VDC  
CONTROL  
OUTPUT  
MAT  
+
-
COMMON  
OHS INPUT  
1
2
OAH/  
OAE  
NOT USED-OAT IS  
CONNECTEDTO RTRM  
1
2
OAT  
RAT  
While setting the minimum position  
the damper may move towards the  
new setting in several small steps.  
Once the damper has remained in  
the same position for 10 to 15  
seconds it can be assumed it is in  
the new position.  
MIN POS.  
SETPOINT  
0-50%  
1
2
RA INPUT  
COMMON  
GREEN  
LED  
ABCD  
SETTINGS  
COMMON  
RHS INPUT  
1
2
RAH/  
RAE  
CO2 "PURGE"  
SETPOINT  
ADJUSTTMENT  
500-1500 PPM  
1
2
CO2 SENSOR INPUT  
COMMON  
DCV  
P1  
P
-
MODBUS  
+
COMMON  
24VAC  
SHORTED=CLOSED  
OPEN=ON BOARD POT.  
270 omega = 50%  
REMOTE  
MINIMUM  
POTENTIOMETER  
WHT  
RED  
BLUE  
1 = ECA board  
RT-SVX20A-E4  
51  
Operation  
WARNING! If any operating checks  
must be performed with the unit  
operating, it is the technician's  
responsibility to recognize any  
possible hazards and proceed in a  
safe manner. Failure to do so could  
result in severe personal injury or  
death due to electrical shock or  
contact with moving parts.  
Test mode procedure at the  
ReliaTel™ control board  
Test procedures  
Operating checklist before start-up  
Operating the unit from the roof  
using the test mode at the  
ReliaTel™ control board.  
Unit is level, with sufficient  
clearance all round  
Duct network is correctly sized  
according to the unit  
CAUTION! Before proceeding with  
the following test procedures, make  
sure that thermostat or zone sensor  
is off.  
configuration, insulated, and  
water-tight  
Condensate drainage line is  
correctly sized, equipped with a  
trap, and sloped  
Power-up initialization  
CAUTION! Use one of the following  
"Test" procedures to bypass some  
time delays and to start the unit at  
the control panel.  
CAUTION! Before proceeding with  
any test procedure or operation,  
make sure that crankcase heaters  
have been energized for at least  
8 hours.  
Filters are in position, of correct  
size and quantity and clean  
Wiring is correctly sized and  
connected in accordance with  
wiring diagrams  
Each step of unit operation can be  
activated individually by  
temporarily shorting across the  
"Test" terminals for two to three  
seconds.The Liteport LED located  
on the RTRM module will blink  
when the test mode has been  
initiated.The unit can be left in any  
"Test" step for up to one hour  
before it will automatically  
terminate, or it can be terminated  
by opening the main power  
disconnect switch. Once the test  
mode has been terminated, the  
Liteport LED will glow continuously  
and the unit will revert to the  
"System" control.  
Units equipped with Scroll  
compressors do not have crankcase  
heaters.  
Power supply lines are protected  
by recommended fuses and  
correctly earthed  
Thermostat is correctly wired  
and positioned  
Unit is checked for refrigerant  
charge and leaks  
Indoor and outdoor fans rotate  
freely and are fixed on shafts  
Supply fan rotation speed is set  
Access panels and doors are  
replaced to prevent air entering  
and risks of injury  
Checking of the gas heating  
section, in accordance with  
above procedure  
Note: Upon power initialization, the  
RTRM performs self-diagnostic  
checks to insure that all internal  
controls are functional. It also  
checks the configuration parameters  
against the components connected  
to the system.The Liteport LED  
located on the RTRM module is  
turned "On" within 1 second of  
power-up if internal operation is  
okay.  
52  
RT-SVX20A-E4  
Operation  
Table 48 - ServiceTest Guide for Component Operation on cooling only units  
Test modes  
There are 2 methods in which the  
"Test" mode can be cycled with the  
test button:  
1. StepTest Mode  
This method initiates the different  
components of the unit, one at a  
time, by temporarily shorting across  
the two test terminals for two to  
three seconds. For the initial startup  
of the unit, this method allows the  
technician to cycle a component  
"On" and have up to 1 hour to  
complete the check.  
1
2*  
3
Fan On  
Economizer  
Cool 1  
On  
On  
On  
On  
On  
On  
Min  
Open  
Min  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
Off  
On  
Off  
Off  
Off  
Off  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
Off  
On  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
**  
4
Cool 2  
Min  
**  
5*  
6*  
Heat 1  
Min  
Off  
Off  
Heat 2  
Min  
2. AutoTest Mode  
* With Optional Accessory  
** "Off" If temperature falls below 16° ( 1°C), "On" if temperature rises above 18° ( 1°C).  
This method is not recommended  
for start-up due to the short timing  
between individual component  
steps.This method initiates the  
different components of the unit,  
one at a time, when a jumper is  
installed across the test terminals.  
The unit will start the first test step  
and change to the next step every  
30 seconds. At the end of the test  
mode, control of the unit will  
Note: Steps for optional accessories and modes not present in unit will be skipped.  
Table 49 - ServiceTest Guide for Component Operation on Heat Pump Units  
automatically revert to the applied  
"System" control method.  
For unit test steps and test modes,  
values to cycle the various  
components, refer toTables 48  
and 49.  
1
2*  
3
Fan On  
Economizer  
Cool 1  
On  
On  
On  
On  
On  
On  
Min  
Open  
Min  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
Off  
On  
Off  
Off  
Off  
Off  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
Off  
On  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
**  
4
Cool 2  
Min  
**  
5*  
6*  
Heat 1  
Min  
Off  
Off  
Heat 2  
Min  
* With Optional Accessory  
** "Off" If temperature falls below 16° ( 1°C), "On" if temperature rises above 18° ( 1°C).  
Note: Steps for optional accessories and modes not present in unit will be skipped.  
RT-SVX20A-E4  
53  
Operation  
Figure 32 - Gas valve  
Note: Unit to be installed outside  
only.  
Unit start-up  
Verification of gas valve settings -  
(Reserved for the qualified gas  
technician)  
G20 - 7.5mbar  
G25 -10.5mbar  
Note: Expansion valve must be  
adapted to the type of gas used:  
3/32"  
G 20: 20 mb  
G 25: 25 mb  
G 31 (Propane): 37 or 50 mb  
1
WARNING! Improper gas valve  
setting may lead to burner  
destruction and people injury.  
Note: Unit factory-set for G20.  
1 = Screw to set gas valve  
Table 50 - Gas type designation per country  
Destination countries  
Pressure in mbar  
Category  
II2E+3P  
I2E  
FR  
DE-LU-PL  
20/25 37  
20  
CH-ES-GB-IE-PT-CZ-GR  
20 37  
25 30  
20  
II2H3P  
II2L3P  
I2H  
NL  
IT-AT-NO-FI-SE-EE-LT-LV  
IT  
BE  
28-30/37  
20/25  
20  
I3+  
I2E  
I2H  
I3P  
DK-SK-SI-TR  
BE-PL  
37  
AT-DE-LU-HU-SK  
HU  
50  
25  
I3P  
I2H  
Table 51 - Gas burner data  
Burner  
G120  
G200  
G25  
0,0  
G250  
Gas Type  
G20  
0,0  
G25  
0,0  
G31  
0,0  
G20  
0,0  
G31  
G20  
0,0  
G25  
G31  
0,0  
Heating Input (kW)  
Heating Output (kW)  
Efficiency  
0,0  
41,9  
93%  
3,5  
0,0  
24,6  
93%  
2,8  
25  
25,1  
93%  
2,1  
41,3  
93%  
4,7  
41,7  
93%  
5,5  
51,9  
52,3  
52,6  
93%  
4,4  
93%  
3,3  
#DIV/0!  
5,9  
#DIV/0!  
3
Gas Flow rate (Nm /h)  
6,9  
Specific Heating Capacity (MJ/kg)  
Heating Output per stage (1st/2nd) (%)  
Inlet pressure Min/Nominal/Max (mbar)  
Low pressure switch setting (mbar)  
Manifold pressure (mbar)  
34,02  
29,3  
46,34  
34,02  
29,3  
46,34  
34,02  
29,3  
46,34  
0%-100%  
20 / 25 / 30  
15  
0%-70%-100%  
0%-70%-100%  
17 / 20 / 25  
25 / 37 / 45  
20  
17 / 20 / 25  
20 / 25 / 30  
25 / 37 / 45  
20  
17 / 20 / 25  
20 / 25 / 30  
25 / 37 / 45  
20  
15  
15  
15  
10,5  
4
15  
15  
10,5  
5
7,5  
10,5  
24,9  
7,5  
24,9  
7,5  
24,9  
No of injectors  
3
Injector size (Drill / mm)  
(33) / 2.87mm  
(51) / 1.70mm  
(1/8") / 3.175mm  
(49) / 1.85mm  
(1/8") / 3.175mm  
(49) / 1.85mm  
Smoke analysis  
G20 - 20mbar G25 - 25mbar G31 - 37mbar G20 - 20mbar G25 - 25mbar G31 - 37mbar G20 - 20mbar G25 - 25mbar G31 - 37mbar  
Gas / Voltage  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
400/3/50  
CO %  
0.0012%  
59 ppm  
8,29%  
0.0017%  
44 ppm  
9,20%  
0.0003%  
8.7 ppm  
8,90%  
0.0020%  
10 ppm  
7,10%  
0.0015%  
10 ppm  
7,10%  
0.0011%  
11 ppm  
8,28%  
0.0020%  
10 ppm  
7,10%  
0.0015%  
10 ppm  
7,10%  
0.0011%  
11 ppm  
8,28%  
Nox ppm  
CO2 %  
Notes:  
3
(1) G20 heating output given for 34,02 MJ/m (15°C-1013)  
(2) G25 heating output given for 29,30 MJ/m (15°C-1013)  
3
(3) G31 heating output given for 46.34 MJ/kg  
54  
RT-SVX20A-E4  
Operation  
Starting the unit in cooling mode  
Operating pressures  
Final installation checklist  
Are all power cables tightened?  
Check torque of power cables  
contact !  
Is the condenser fan and indoor  
blower operating correctly, i.e.  
correct rotation and without  
undue noise?  
Are the compressors operating  
correctly and has the system  
been checked for leaks?  
Have the voltage and running  
currents been checked to  
determine if they are within  
limits?  
Have the air discharge grilles  
been adjusted to balance the  
system?  
Has the ductwork been checked  
for air leaks and any  
condensation?  
Has the air temperature rise  
been checked?  
Has the indoor airflow been  
checked and adjusted if  
necessary?  
Before start-up, ensure that all  
power cables are tightened.  
After the unit has operated in  
cooling mode for a short period of  
time, install pressure gauges on the  
gauge ports of the discharge and  
suction line valves.  
Verify that the unit airflow rate is  
adjusted according to the  
information provided in the "Supply  
fan adjustment" section of this  
manual.  
Note:To bypass time delays and  
verify the operation of this unit from  
the roof, use the "Test procedure"  
section in this manual. Check the  
suction and discharge pressures.  
To start the unit in cooling mode:  
Place the zone sensor system  
switch in the "COOL" position.  
Position the cooling setpoint  
approximately 10° below room  
temperature and place the fan  
switch in the "AUTO" or "ON"  
position.  
Note: Always route refrigerant  
hoses through the port hole  
provided and ensure that the  
compressor access panel is in place.  
Turn on unit main power supply.  
Cooling shutdown  
The condenser fan motor,  
compressor and supply fan motor  
should operate automatically.  
To exit the test mode, disconnect  
unit power for 3-5 seconds and  
reapply. When running the unit  
using the zone sensor as the  
control, position the selector switch  
to "OFF".  
There will be a delay of up to  
5 minutes before the unit starts in  
cooling mode.  
There may be a delay of up to  
3 minutes before compressors shut  
down and an additional one minute  
before the fan shuts down in this  
setting.  
Has the unit been checked for  
tubing and sheet metal rattles or  
any unusual noises?  
Are all covers and panels in  
place and properly fastened?  
Do not de-energize main power  
disconnect except when unit is to  
be serviced. Power is required to  
keep the compressor crankcase  
warm and boil off refrigerant in the  
oil (except on units with Scroll  
compressors).  
RT-SVX20A-E4  
55  
Operation  
ReliaTel™ is a microelectronic  
control feature, which provides  
operating functions that are  
significantly different from  
conventional electro-mechanical  
units.The master module is the  
ReliaTel™ Refrigeration Module  
(RTRM).  
Evaporator Fan Operation  
Cooling without an  
Economizer  
When the fan selection switch is set  
to the "Auto" position, the RTRM  
energizes the (K6) relay coil  
approximately one second after  
energizing the compressor  
contactor coil (CC1) in the cooling  
mode. In heating mode, the RTRM  
energizes the (K6) relay coil  
approximately 45 seconds after gas  
ignition. Closing the K6 contacts on  
the RTRM energizes the supply fan  
relay (F) coil to start the supply fan  
motor (IDM).  
When the system switch is set to  
the "Cool" position and the zone  
temperature rises above the cooling  
setpoint controlband, the RTRM  
energizes the (K9) relay coil located  
on the RTRM. When the K9 relay  
contacts close, the compressor  
contactor (CC1) coil is energized  
provided the low pressure control  
(LPC1) and high pressure control  
(HPC1) are closed. When the CC1  
contacts close, compressor (CPR1)  
and the outdoor fan motor (ODM)  
start to maintain the zone  
The RTRM provides compressor  
antishort cycle timing functions  
through minimum "Off" and "On"  
timing to increase reliability,  
performance and to maximize unit  
efficiency.  
Upon power initialization, the RTRM  
performs self-diagnostic checks to  
insure that all internal controls are  
functioning. It checks the  
configuration parameters against  
the components connected to the  
system.  
The RTRM de-energizes the fan  
relay (F) approximately 60 seconds  
after the cooling requirement has  
be satisfied to enhance unit  
efficiency.  
temperature to within 2 F of the  
sensor setpoint at the sensed  
location.  
When the heating cycle is  
terminated, the supply fan relay (F)  
coil is de-energized approximately  
90 seconds after the heating  
requirement.  
If the first stage of cooling can not  
satisfy the cooling requirement, the  
RTRM energizes the (K10) relay coil  
located on the RTRM. When the  
(K10) relay contacts close, the  
compressor contactor (CC2) coil is  
energized provided the low  
pressure control (LPC2) and high  
pressure control (HPC2) are closed.  
When the CC2 contacts close,  
compressor (CPR2) starts to  
The LED located on the RTRM  
module is turned "On" within one  
second after power-up if all internal  
operations are okay.  
When the fan selection switch is set  
to the "On" position, the RTRM  
keeps the supply fan relay coil (F)  
energized for continuous fan motor  
operation.  
When the unit is equipped with the  
optional clogged filter switch, wired  
between terminals J7-3 and J7-4 on  
the ReliaTel™ Options Module  
(RTOM), the RTRM produces an  
analog output if the clogged filter  
switch (CFS) closes for two minutes  
after a request for fan operation.  
When the system is connected to a  
remote panel, the "SERVICE" LED  
will be turned on when this failure  
occurs.  
maintain the zone temperature to  
within 2 F of the sensor setpoint  
at the sensed location.  
56  
RT-SVX20A-E4  
Operation  
The ECA continues to modulate the  
economizer damper open/closed to  
keep the mixed air temperature that  
is calculated by the RTRM.  
Low Ambient Operation  
Cooling with an  
Economizer  
The economizer is utilized to control  
the zone temperature providing the  
outside air conditions are suitable.  
During low ambient operation,  
outside air temperature below 13ºC,  
the RTRM will cycle the compressor  
and outdoor fan motor "Off" for  
approximately three minutes after  
every 10 minutes of accumulated  
compressor run time.The supply  
fan motor (IDM) will continue to  
operate during this evaporator  
defrost cycle (EDC) and the  
compressor and outdoor fan will  
return to normal operation once the  
defrost cycle has terminated and  
the compressor "Off" time delay has  
been satisfied.  
If economizing is not possible, the  
ECA drives the damper to the  
minimum position setpoint when  
the supply fan relay (F) is energized  
and allows mechanical cooling  
operation. When the unit is  
equipped with the optional fan  
failure switch, wired between  
terminals J7-5 and J7-6 on the  
RTOM, the RTRM will stop all  
cooling functions and produce an  
analog output if the fan failure  
switch (FFS) does not open within  
40 seconds after a request for fan  
operation. When the system is  
connected to a remote panel, the  
"SERVICE" LED will flash when this  
failure occurs.  
Outside air is drawn into the unit  
through modulating dampers. When  
cooling is required and economizing  
is possible, the RTRM sends the  
cooling request to the unit  
economizer actuator (ECA) to open  
the economizer damper.The RTRM  
tries to cool the zone utilizing the  
economizer to slightly below the  
zone temperature setpoint. If the  
mixed air sensor (MAS) senses that  
the mixed air temperature is below  
53ºF, the damper modulates toward  
the closed position. If the zone  
temperature continues to rise above  
the zone temperature setpoint  
controlband and the economizer  
damper is full open, the RTRM  
energizes the compressor contactor  
(CC1). If the zone temperature  
continues to rise above the zone  
temperature setpoint controlband  
and the economizer damper is fully  
open, the RTRM energizes the  
compressor contactor (CC2).  
RT-SVX20A-E4  
57  
Operation  
3. Comparative Enthalpy - By  
utilizing a humidity sensor and a  
temperature sensor in both the  
return air stream and the  
Economizer Set-Up  
Ignition Module  
Adjusting the minimum position  
potentiometer located on the unit  
economizer Actuator (ECA) sets the  
required amount of ventilation air.  
Two Stage (IGN) runs self-check  
(including verification that the gas  
valve is de-energized). (IGN) checks  
the high-limit switches (TC01 &  
TC02) for normally closed contacts.  
With 115 VAC power supplied to the  
ignition module (IGN), the hot  
surface ignition probe (IP) is  
preheated for approximately  
45 seconds.The gas valve (GV) is  
energized for approximately  
7 seconds for trial for ignition, to  
ignite the burner.  
outdoor air stream, the unit  
control processor (RTRM) will be  
able to establish which  
conditions are best suited for  
maintaining the zone  
Two of the three methods for  
determining the suitability of the  
outside air can be selected utilizing  
the enthalpy potentiometer on the  
ECA, as described below:  
1. AmbientTemperature -  
controlling the economizing  
cycle by sensing the outside air  
dry bulb temperature.TheTable  
below lists the selectable dry  
bulb values by potentiometer  
setting.  
2. Reference Enthalpy - controlling  
the economizer cycle by sensing  
the outdoor air humidity.The  
Table below lists the selectable  
enthalpy values by  
temperature, i.e. indoor  
conditions or outdoor conditions.  
The potentiometer located on  
the ECA is non-functional when  
both the temperature and  
humidity sensors are installed.  
Once the burner is ignited, the hot  
surface ignition probe (IP) is de-  
energized by the ignition module  
(IGN) and functions as the flame  
sensing device.  
Table 52 - Potentiometer Setting  
Dry BuIb  
(°C)  
23*  
21  
Enthalpy  
(KJ/kg)  
63  
Potentiometer  
Setting  
A
If the burner fails to ignite, the  
ignition module will make two more  
attempts before locking out.The  
green LED will indicate a lock out by  
two fast flashes. An ignition lockout  
can be reset by:  
1. Opening for 3 seconds and  
closing the main power  
disconnect switch  
2. By switching the "Mode" switch  
on the zone sensor to "OFF" and  
then to the desired position  
3. Allowing the ignition control  
module to reset automatically  
after one hour.  
B
58  
C
D
19  
53  
17  
51  
potentiometer setting.  
*Factory Setting  
If the outside air enthalpy value  
is less than the selected value,  
the economizer is allowed to  
operate.  
ReliaTel™ Control Heating  
Operation  
When the system switch is set to  
the "Heat" position and the zone  
temperature falls below the heating  
setpoint controlband, a heat cycle is  
initiated when the RTRM  
communicates ignition information  
to the Ignition module (IGN).  
58  
RT-SVX20A-E4  
Operation  
Refer to the ignition control module  
diagnostics section for the LED  
diagnostic definitions.  
Final installation checklist  
Is the condenser fan and indoor  
blower operating correctly, i.e.:  
correct rotation and without  
undue noise?  
When the fan selection switch is set  
to the "Auto" position, the RTRM  
energizes the supply fan relay (F)  
coil approximately 30 second after  
initiating the heating cycle to start  
the supply fan motor (IDM).  
Are the compressors operating  
correctly and has the system  
charge been checked?  
Has the gas module been  
installed as per the procedure in  
this manual?  
Have the voltage and running  
currents been checked to  
determine if they are with in  
limits?  
The automatic reset high limit  
(TCO1), located in the bottom right  
corner of the burner compartment,  
protects against abnormally high  
leaving air temperatures.  
Have the air discharge grilles  
been adjusted to balance the  
system?  
Has the ductwork been checked  
for air leaks and any  
condensation?  
The automatic reset fan fail limit  
(TCO2), located in the upper middle  
section of the supply fan board,  
protects against abnormally high  
heat buildup which could occur  
because of extended cycling of the  
high limit (TCO1) or if the supply  
fan motor (IDM) fails to operate.  
ShouldTCO2 open, the RTRM will  
energize the supply fan relay (F) in  
an attempt to start the fan motor.  
The RTRM signals that a heat failure  
has occurred by flashing the "Heat"  
LED on the zone sensor.  
Has the heating air temperature  
rise been checked?  
Has the indoor airflow been  
checked and adjusted if  
necessary?  
Has the unit been checked for  
tubing and sheet metal rattles  
orany unusual noises?  
Are all covers and panels in  
placeand properly fastened?  
There is a Green LED located in the  
Ignition Control Module.The table  
below lists the diagnostics and the  
status of the LED during the various  
operating states.  
To keep the unit operating safely  
and efficiently, the manufacturer  
recommends that a qualified service  
technician check the entire system  
at least once each year, or more  
frequently if conditions warrant.  
Table 53 - LED status  
Diagnostics  
Green LED  
Off  
Red LED  
Off  
1. Powered but no heat dernand  
2. Heat demand without fault  
Flash ing  
Off  
3. No flame detection on ignition - or signal detected  
and then lost  
Off  
Flashing  
4. Gas unit incorrectly wired or flame signal detected on  
a heat demand  
Steady  
Off  
Flashing  
Steady  
5. Internal fault  
RT-SVX20A-E4  
59  
Maintenance  
To keep the unit operating safely  
and efficiently, the manufacturer  
recommends that a qualified service  
technician check the entire system  
at least once each year, or more  
frequently if conditions warrant it.  
End user routine  
maintenance  
Some of the periodic maintenance  
functions for the unit can be  
undertaken by the end user.This  
includes replacing (disposable) or  
cleaning (permanent) air filters,  
cleaning unit cabinet, cleaning the  
condenser coil, and carrying out a  
general unit inspection on a regular  
basis.  
WARNING! Disconnect the power  
supply before removing access  
panels to service the unit. Failure to  
disconnect power before attempting  
any servicing can result in severe  
injury or death.  
Air filters  
It is very important for the central  
duct system air filters to be kept  
clean.  
These should be inspected at least  
once a month when the system is in  
constant operation (in new  
buildings, the filters should be  
checked every week for the first four  
weeks). If disposable-type filters are  
used, they should only be replaced  
with ones of the same type and  
size.  
Table 54 - Refrigerant charge  
Refrigerant charge  
(kg) (R22/R407C)  
Unit model and size  
Number of circuits  
YSD/YSH 060  
YSD/YSH 072  
YSD/YSH 090  
YSD/YSH 102  
YSD/YSH 120  
1
1
1
2
2
3.5  
3.7  
4.5  
3.7/2.1  
3.5/3.0  
Note: Refrigerant charges are given for information only. Check unit nameplate for exact values.  
60  
RT-SVX20A-E4  
Maintenance  
Note: Do not attempt to clean  
disposable filters. Permanent filters  
can be cleaned by washing with a  
mild detergent and water. Ensure  
that the filters are thoroughly dry  
before reinstalling them in the unit  
(or duct system).  
Service technician  
maintenance  
Before the cooling season, your  
service technician may examine the  
following areas of your unit:  
Filters, for cleaning or  
replacement  
Note: Replace permanent filters  
annually if washing fails to clean  
them, or they show signs of  
deterioration. Be sure to use the  
same type and size as were  
originally installed.  
Motors and drives system  
components  
Economizer gaskets, for  
replacement if necessary  
Condenser coils, for cleaning  
Safety controls, for mechanical  
cleaning  
Condenser coil  
Electrical components and  
wiring, for replacement and  
tightening of connections as  
necessary  
Unfiltered air circulates through the  
unit's condenser coil and can cause  
the coil's surface to become  
clogged with dust, dirt, etc.To clean  
the coil, brush the coil surface in the  
direction of the fins with a soft  
bristled brush.  
Condensate drain, for cleaning  
Unit duct connections, to ensure  
they are physically sound and  
sealed to the unit casing  
Unit mounting support, to  
ensure that it is sound  
The unit, to ensure there is no  
obvious deterioration  
Keep all vegetation away from the  
condenser coil area.  
Hot water coil (option)  
Before the heating season, your  
service technician may examine the  
following areas of your unit:  
Stop the unit. Do not disconnect the  
main supply to the unit.This will  
permit the anti-frost protection to  
continue to operate, and avoid  
water to freeze-up in the coil.  
The unit, to ensure that the  
condenser coil can receive the  
required airflow (that the  
condenser fan grille is not  
obstructed)  
The control panel wiring, to  
verify that all electrical  
connections are tight, and that  
wire insulation is intact  
Clean burner area, verify the gas  
heat system operates properly.  
RT-SVX20A-E4  
61  
Maintenance  
5. If no failures are indicated, use  
one of theTEST mode  
System Status Checkout Procedure  
Troubleshooting  
"System Status" is checked by using  
one of the following two methods:  
The RTRM has the ability to provide  
the service personnel with some  
unit diagnostics and system status  
information. Before turning the  
main power disconnect switch "Off",  
follow the steps below to check the  
ReliaTel™  
procedures described in the unit  
"Start-Up" section to start the  
unit.This procedure will allow  
you to check all of the RTRM  
outputs, and all of the external  
controls (relays, contactors, etc.)  
that the RTRM outputs energize,  
for each respective mode.  
Method 1  
If the Zone Sensor Module (ZSM) is  
equipped with a remote panel with  
LED status indication, you can check  
the unit within the space. If the ZSM  
does not have LED's, use Method 2.  
Refrigeration Module (RTRM). All  
diagnostics & system status  
information stored in the RTRM will  
be lost when the main power is  
turned "Off".  
Proceed to Step 6.  
6. Step the system through all of  
the available modes, and verify  
operation of all outputs, controls,  
and modes. If a problem in  
operation is noted in any mode,  
you may leave the system in that  
mode for up to one hour while  
troubleshooting. Refer to the  
sequence of operations for each  
mode, to assist in verifying  
proper operation. Make the  
necessary repairs and proceed to  
Steps 7 and 8.  
7. If no abnormal operating  
conditions appear in the test  
mode, exit the test mode by  
turning the power "Off" at the  
main power disconnect switch.  
8. Refer to the individual  
component test procedures if  
other microelectronic  
THS/P03 have the remote panel  
indication feature.The LED  
descriptions are listed below:  
1. Verify that the Liteport LED on  
the RTRM is burning  
LED 1 (System) "On" during normal  
operation. "Off" if a system failure  
occurs or the LED fails. "Flashing"  
indicates test mode.  
continuously. If the LED is lit, go  
to Step 3.  
2. If the LED is not lit, verify that  
24 VAC is present between J1-1  
and J1-2. If 24 VAC is present,  
proceed to Step 3. If 24 VAC is  
not present, check the unit main  
power supply, check transformer  
(TNS1). Proceed to Step 3 if  
necessary.  
LED 2 (Heat) "On" when the heat  
cycle is operating. "Off" when the  
heat cycle terminates or the LED  
fails. "Flashing" indicates a heating  
failure.  
LED 3 (Cool) "On" when the cooling  
cycle is operating. "Off" when the  
cooling cycle terminates or the LED  
fails. "Flashing" indicates a cooling  
failure.  
3. Utilizing "Method 1" or  
"Method 2" in the system status  
diagnostic section, check the  
following: System status,  
Heating status, Cooling status. If  
a System failure is indicated,  
proceed to Step 4. If no failures  
are indicated, proceed to Step 5.  
LED 4 (Service) "On" indicates a  
clogged filter. "Off" during normal  
operation. "Flashing" indicates an  
supply fan failure.  
components are suspect.  
4. If a System failure is indicated,  
recheck Steps 1 and 2. If the LED  
is not lit in Step 1, and 24 VAC is  
present in Step 2, the RTRM has  
failed. Replace the RTRM.  
62  
RT-SVX20A-E4  
Maintenance  
Below is the complete listing of  
failure indication causes:  
Cooling Failure  
Simultaneous Heat and Cool Failure  
1. Emergency Stop is activated  
1. Cooling and heating set point  
(slide pot) on the zone sensor  
has failed. Refer to the "Zone  
SensorTest Procedure" section.  
2. Zone temperature thermistor  
ZTEMP on ZTS failed. Refer to  
the "Zone SensorTest Procedure"  
section.  
3. CC1 or CC2 24 VAC control circuit  
has opened, check CC1 & CC2  
coils, and any of the controls  
below that apply to the unit  
(HPC1, HPC2).  
4. LPC1 has opened during the  
3 minute minimum "on time"  
during 4 consecutive compressor  
starts, check LPC1 or LPC2 by  
testing voltage between the J1-8  
& J3-2 terminals on the RTRM  
and ground. If 24 VAC is present,  
the LPC's has not tripped. If no  
voltage is present, LPC's has  
tripped.  
System failure  
Method 2  
Check the voltage between  
terminals 6 and 9 on J6, it should  
read approximately 32 VDC. If no  
voltage is present, a system failure  
has occurred. Refer to Step 4 in the  
previous section for the  
The second method for determining  
system status is done by checking  
voltage readings at the RTRM (J6).  
The system indication descriptions  
and the approximate voltages are  
listed below.  
recommended troubleshooting  
procedure.  
System Failure  
Measure the voltage between  
terminals J6-9 & J6-6.  
Heating Failure  
Verify Heat Failure by Ignition  
Module (IGN) LED indicator:  
Normal Operation = approximately  
32 VDC  
OFF: No Power or Failure  
ON: Normal  
System Failure = less than 1 VDC,  
approximately 0.75 VDC  
Slow Flash: Normal, Heat Call  
Fast Flash: Error Code:  
Test Mode = voltage alternates  
between 32 VDC & 0.75 VDC  
1
2
3
4
5
6
Flash: Communication Failure  
Flashes: System Lockout  
Flashes: Pressure Switch Fail  
FlashesTC01 orTC02 Open  
Flashes: Flame w/o Gas Valve  
Flashes: Flame Rollout Open  
Heat Failure  
Measure the voltage between  
terminals J6-7 & J6-6.  
Service Failure  
1. If the supply fan proving switch  
has closed, the unit will not  
operate (when connected to  
RTOM), check the fan motor,  
belts, and proving switch.  
Heat Operating = approximately  
32 VDC  
Heat Off = less than 1 VDC,  
approximately 0.75 VDC  
2. Clogged filter switch has closed,  
check the filters.  
Heating Failure = voltage alternates  
between 32 VDC & 0.75 VDC  
Cool Failure  
Measure the voltage between  
terminals J6-8 & J6-6.  
Cool Operating = approximately  
32 VDC  
Cool Off = less than 1 VDC,  
approximately 0.75 VDC  
Cooling Failure = voltage alternates  
between 32 VDC & 0.75 VDC  
RT-SVX20A-E4  
63  
Maintenance  
Service Failure  
Resetting Cooling and Ignition  
Lockouts  
ZoneTemperature Sensor (ZTS)  
Service Indicator  
Measure the voltage between  
terminals J6-10 & J6-6.  
Cooling Failures and Ignition  
The ZSM SERVICE LED is a generic  
indicator that will signal the closing  
of a Normally Open switch at any  
time, providing the Indoor Motor  
(IDM) is operating.This indicator is  
usually used to indicate a clogged  
filter, or an air side fan failure.  
Clogged Filter = Approximately  
32 VDC.  
Lockouts are reset in an identical  
manner. Method 1 explains  
resetting the system from the space,  
Method 2 explains resetting the  
system at the unit.  
Normal = Less than 1 VDC,  
approximately 0.75 VDC  
Fan Failure = voltage alternates  
between 32 VDC & 0.75 VDC.  
Note: Before resetting Cooling  
Failures and Ignition Lockouts,  
check the Failure Status Diagnostics  
by the methods previously  
explained.  
The RTRM will ignore the closing of  
this Normally Open switch for 2 ( 1)  
minutes.This helps prevent  
nuisance SERVICE LED indications.  
The exception is the LED will flash  
40 seconds after the fan is turned  
"On" if the Fan Proving Switch is not  
made.  
To use LED's for quick status  
information at the unit, purchase a  
ZSM and connect wires with  
alligator clamps to terminals 6  
through 10.  
Diagnostics will be lost when the  
power to the unit is disconnected.  
Connect each respective terminal  
wire (6 through 10) from the Zone  
Sensor to the unit J6 terminals 6  
through 10.  
Method 1  
Clogged Filter Switch  
To reset the system from the zone,  
turn the "Mode" selection switch at  
the zone sensor to the "Off"  
position.  
This LED will remain lit the entire  
time that the Normally Open switch  
is closed.The LED will be turned off  
immediately after resetting the  
switch (to the Normally Open  
position), or any time that the IDM  
is turned "Off".  
Note: If the system is equipped  
with a programmable zone sensor  
THS03, the LED indicators will not  
function while the ZSM is  
connected.  
After approximately 30 seconds,  
turn the "Mode" selection switch to  
the desired mode, i.e. Heat, Cool or  
Auto.  
If the switch remains closed, and  
the IDM is turned "On", the SERVICE  
LED will be turned "On" again after  
the 2 ( 1) minute ignore delay.  
Method 2  
To reset the system at the unit,  
cycle the unit power by turning the  
disconnect switch "Off" and then  
"On".  
This LED being turned "On", will  
have no other affect on unit  
operation. It is an indicator only.  
Lockouts can be cleared through the  
building management system. Refer  
to the building management system  
instructions for more information.  
Fan Failure Switch  
When the "Fan Failure" switch is  
wired to the RTOM, the LED will  
remain flashing the entire time the  
fan proving switch is closed,  
indicating a fan failure, and it will  
shut the unit operations down.  
64  
RT-SVX20A-E4  
Maintenance  
Table 55 -Thermistor Resistance /  
Temperature Chart  
ZoneTemperature Sensor (ZTS)Test  
Note:These procedures are not for  
programmable or digital models  
and are conducted with the Zone  
Sensor  
Temperature/resistance coefficient is  
negative.  
Temperature  
Resistance  
(kOhms)  
103  
(°C)  
-21  
-15  
-9  
Module electrically removed from  
the system.  
74.65  
54.66  
46.94  
40.4  
Test 1  
-7  
ZoneTemperatureThermistor  
(ZTEMP)  
-4  
-1  
34.85  
30.18  
26.22  
22.85  
19.96  
17.47  
This component is tested by  
measuring the resistance between  
terminals 1 and 2 on the Zone  
Temperature Sensor.  
2
4
7
10  
13  
16  
18  
21  
24  
27  
29  
32  
35  
38  
15.33  
13.49  
11.89  
10.5  
9.297  
8.247  
7. 3 3  
6.528  
5.824  
RT-SVX20A-E4  
65  
Maintenance  
ToTest Humidity Sensors  
Return Air Humidity Sensor  
Outdoor Humidity Sensor  
ECA  
ECA  
RAH/RAE  
OAH/OAE  
To test this circuit, place a DC milliamp meter in series with either of the leads to the humidity sensor. If the reading  
is 0ma, polarity may be reversed. Reverse + & - and retest. If the reading does not correspond to the table below,  
check the output voltage from the ECA with the sensor disconnected. It should be approximately 20VDC. If so, and  
all connections are intact, replace the sensor. If 20VDC is not present, yet the ECA green LED is on, the ECA module  
has failed.Humidity sensor accuracy : +/-10% RH.  
Table 56 - Humidity sensor test  
RH%  
100%  
97.7  
DCma  
20.000  
19.636  
19.286  
18.947  
18.621  
18.305  
18.000  
17.705  
17.419  
17.143  
16.875  
16.615  
16.364  
16.119  
15.882  
15.652  
15.429  
15.211  
15.000  
14.795  
14.595  
14.400  
14.211  
14.026  
13.846  
13.671  
13.500  
13.333  
13.171  
13.012  
12.857  
12.706  
12.558  
RH%D  
52.6  
51.7  
50.8  
50.0  
49.2  
48.4  
47.6  
Cma  
12.414  
12.273  
12.135  
12.000  
11.868  
11.739  
11.613  
11.489  
11.368  
11.250  
11.134  
11.020  
10.909  
10.800  
10.693  
10.588  
10.485  
10.385  
10.286  
10.189  
10.093  
10.000  
9.908  
RH%  
31.2  
30.8  
30.3  
29.9  
29.4  
29.0  
28.6  
28.1  
27.7  
DCma  
9.000  
8.926  
8.852  
8.780  
8.710  
8.640  
8.571  
8.504  
8.438  
8.372  
8.308  
8.244  
8.182  
8.120  
8.060  
8.000  
7.941  
7.833  
7.826  
7.770  
7.714  
7.660  
7.606  
7.552  
7.500  
7.448  
7.397  
7.347  
7.297  
7.248  
7.200  
95.5  
93.4  
91.4  
89.4  
87.5  
85.7  
83.9  
82.1  
80.5  
78.8  
77.3  
46.8  
46.1  
45.3  
44.6  
43.9  
43.2  
42.5  
41.8  
41.2  
40.5  
39.9  
39.3  
38.7  
38.1  
37.5  
27.3  
26.9  
26.5  
26.1  
25.8  
25.4  
25.0  
24.6  
24.3  
23.9  
23.6  
23.2  
22.9  
22.5  
22.2  
21.9  
21.6  
21.2  
20.9  
20.6  
20.3  
20.0  
75.7  
74.3  
72.8  
71.4  
70.1  
68.8  
67.5  
66.2  
65.0  
63.8  
62.7  
61.5  
60.4  
59.4  
58.3  
57.3  
36.9  
36.4  
35.8  
35.3  
34.7  
34.2  
33.7  
33.2  
32.7  
32.2  
31.7  
9.818  
9.730  
9.463  
9.558  
9.474  
9.391  
56.3  
55.4  
54.4  
53.5  
9.310  
9.231  
9.153  
9.076  
66  
RT-SVX20A-E4  
Notes  
RT-SVX20A-E4  
67  
Literature Order Number  
Date  
RT-SVX20A-E4  
0606  
Supersedes  
RT-SVX20A-E4_1105  
Europe  
Literature Stocking Location  
Trane has a policy of continuous product and product data improvement and reserves the right to  
change design and specifications without notice. Only qualified technicians should perform the  
installation and servicing of equipment referred to in this publication.  
For more information, contact your local  
American Standard Europe BVBA  
sales office or e-mail us at [email protected]  
Registered Office: 1789 Chaussée de Wavre, 1160 Brussels - Belgium  

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