Mitsubishi Electronics G 50a User Manual

Mitsubishi Electric Air-conditioner Network System  
Central Controller  
Model: G-50A  
Instruction Book  
Contents  
……………………………………………  
…………………………………  
…………………………………………  
1
2
4
4
8
1. Safety  
2. Product feature  
ON/OFF  
3. Function  
3-1 Specification  
3-2 Display screen  
4. User operation  
……………………………  
…………………………  
………………………………… 10  
CENTRAL CONTROLLER  
G-50A  
…………… 11  
4-1 Operation condition monitor  
……………………… 12  
4-2 Operation setting  
………… 12  
4-2-1 Group operation setting  
4-2-2 Collective operation setting  
……… 16  
4-3 Timer operation ………………………… 19  
4-4 Malfunction  
……………………………… 23  
…………………… 24  
…………………………………… 25  
………… 25  
4-5 Current time setting  
5. Initial setting  
5-1 Shifting to initial setting menu  
………………… 25  
5-2 M-NET address setting  
………………………… 26  
5-3 Function setting  
…………… 27  
5-4 Group configuration setting  
5-5 Interlocked operation setting  
………… 29  
…………………… 31  
5-6 Group name setting  
…………………………… 34  
……………………… 35  
5-7 User setting  
5-8 IP address setting  
………… 35  
5-9  
Initial setting tools connection function  
…………………………………… 36  
6. Maintenance  
…………… 36  
6-1 Refrigerant system monitor  
……………… 37  
6-2 Malfunction log monitor  
………………………… 38  
7. External input / output  
7-1 External input function ………………… 38  
………………… 39  
7-2 External output function  
Appendix 1 : Initial setting(adridged)………………… 40  
………………… 42  
Appendix 2 : User operation(adridged)  
Before using the controller, please read this Instruction Book carefully to ensure  
correct operation. Store this Instruction Book in a location that is easy to find.  
1 . SAFETY  
Please take a moment to review these safety precautions. They are provided for your protection and to prevent  
damage to the controller.  
This safety information applies to all operators and service personnal.  
After you have read this manual, always observe the procedures described in the explanations and store it with  
the installation manual in a location that is easy to find. If the controller is going to be operated by another per-  
son, make sure that this manual is given to them.  
Symbols and Terms  
Statements identify condition or practices that could result in personal injury or loss of life.  
Statements identify condition or practices that could result in damage to the controller or other property.  
WARNING  
CAUTION  
Specific Precautions  
WARNING  
• Do not move and re-install the controller by yourself.  
If installation is incorrect, it may cause an electric shock,  
fire,etc. Ask your dealer or technical representative.  
• Ask your dealer or technical representative to install.  
If incorrect inatallation is done by a customer, it may cause  
an electric shock, fire, etc.  
• Securely install in a place which can withstand the  
weight of the controller.  
• Contact your dealer if the controller will not be used any  
more or will be scrapped.  
If it is not enough, the controller may fall and cause an  
injury.  
• Do not remodel or repair by yourself.  
If the controller is redesigned or repair is not correct, it may  
cause an electric shock, fire, etc.  
• Make sure that the controller is connected to a rated  
power supply.  
Consult your dealer if repair is necessary.  
If the controller is not connected to a rated power supply, it  
may cause a fire or damage to the controller.  
• Stop the operation immediately and notify the your deal-  
er if an error code is displayed or malfunction occurs.  
Fire or damage may be caused if the controller is operated  
in this condition .  
• Never remove the cover during operation.  
Touching the charged parts of the controller may cause  
severe burns or other personal injury.  
• Stop the operation if any malfunction occurs.  
If malfunction occurs (burning smell, etc.) stop the operation  
and turn off the power supply. Contact your dealer or techni-  
cal representative immediately. If the controller continues to  
operate after a malfunction occurs, this may cause damage,  
electric shock or fire.  
CAUTION  
• Do not use the controller in special environments.  
The performance may be reduce or parts may be damaged  
if the controller is used in locations subject to large quanti-  
ties of oil (including machine oil), steam, sulfide gas.  
• Do not install the controller in a place where inflam-  
mable gas could leak.  
If gas leaks and collects around the controller, it may cause  
a fire or explosion.  
• Do not touch the switches with sharp objects.  
It may cause an electric shock or malfunction.  
• Do not wash the controller with water.  
It may cause an electric shock or malfunction.  
• Do not touch the switch with wet hands.  
It may cause an electric shock.  
• Operate the controller within the specified temperature  
range.  
Observe the specified temperature range when operating  
the controller. If the controller is used outside the specified  
temperature range, it may cause serious damage. Be sure to  
check the operation temperature range in the operation  
manual.  
• Do not use the controller for special applications.  
This product is designed for use with the MITSUBISHI  
ELECTRIC BUILDING AIR CONDITIONING CONTROL  
SYSTEM. Do not use the system for other air condition man-  
agement operation or applications. It may cause malfunc-  
tions.  
• Do not apply insecticide or flammable sprays to the  
controller.  
Do not place flammable spray near the controller and make  
sure it does not blow directly on the controller as this may  
cause in fire.  
-1-  
2 . Product Features  
The central controller is capable of controlling up to 50 air conditioner units. It supports the following operating  
function.  
[ 1 ] User operating function  
(1) Operation  
1. Virtually almost functions operated by local remote controller are supported.  
The central controller can be used to control the indoor units in specific group ON or OFF, select the operating  
mode (COOL, DRY, FAN, AUTO and HEAT) for the indoor unit or HEAT RECOVERY, BY-PASS, AUTO for the  
ventilation unit), select the fan speed, select the air direction (4 direction and swing operation), select the ventil-  
ation mode (OFF, LOW speed, or HIGH speed), select TIMER MODE and select the temperature setting.  
In addition, room temperature can be displayed at the unit of each group upon request.  
(See 5-5 "User setting")  
2. Local remote control operation can be prohibited for specific functions.  
Access to specific control functions, such as ON/OFF operation, mode selection ,temperature setting and filter  
sign reset operation can be prohibited for the local remote controls collectively or per group.  
3. Collectively setting  
Operation setting can be performs collectively or per group.  
(2) Weekly Schedule  
1. The weekly schedule enables four different schedule patterns to be set weekly per group. (P1-P4)  
Of these, three patterns are to set ON/OFF schedule and remaining one pattern is to set the pattern to prohibit op-  
eration of the local remote controller.  
Four patterns (daily patterns) mentioned above enable the setting of individual schedule times for every group.  
2. The respective daily patterns enable the setting of three different ON times (three prohibition times) and three  
different OFF times (three permission times).  
In addition, it is possible to set ON time only (prohibition time only) and OFF time only (permission time only).  
3. Easy setting  
Daily operation patterns and weekly schedules for one group can easily be copied to the other groups.  
4. Timer automatic recovery operation when recovering from a power down is supported.  
(3) Operating status monitor  
1. ON/OFF/MALFUNCTION status can be monitored by group or by unit.  
2. The groups managed by the central controller may be displayed all together by group number or group name  
(first three characters). Collective display of all unit address is also supported.  
3. When displaying all groups at once, individual groups can be turned ON or OFF by designating them by the  
indicator .  
(4) Malfunction monitor  
1. The unit address where the malfunction occurred, the error code and address of the unit that detected  
the malfunction are displayed on the malfunction monitor screen.  
2. Pressing the reset key stops all the units connected to the same group, refrigerant system or linked group to the  
unit where the malfunction occurred, all of these are reset.  
-2-  
[ 2 ] System configuration setup and maintenance function  
(1) Setup for system configuration  
1. Registration can be made for the indoor units, local remote controllers and slave system controllers in the same  
group.  
And also registration can be made for the ventilation such as OA processing unit.  
2. Group name may be specified. ( Names may include alphanumeric characters.)  
3. Group name may be copied.  
4. Setting of group configuration and specifying the group name may be performed as long as power is being supplied  
to the central controller. This mean that setting can be performed before the central controller is installed at  
the site, before installation of individual units is completed or while the power supply to some units is cut off.  
5. System configuration data setting in the central controller can be deleted at once if necessary when replacing cir-  
cuits wired board, etc.  
(2) Refrigerant system monitor  
All unit address (indoor, outdoor, etc.) can be displayed for individual refrigerant system on the refrigerant system  
monitor screen. This information is useful for checking the installation, such as address setting, transmission line  
connection and power supply connection.  
(3) Interlocked group setting  
Setting can be performed for indoor units interlocked with a ventilation unit.  
If even one of the indoor units interlocked with ventilation have started to operate, the ventilation will be activated.  
(4) Malfunction log monitor  
1. A log of the last 64 malfunction massage, in the order in which they occurred, can be monitored.  
2. The data and time the malfunction occurred, the address of unit where it occurred, the error code and the ad-  
dress of unit that detected the malfunction are displayed.  
3. All malfunction logged in the memory of the central controller and indoor unit can be reset at once.  
[ 3 ] Other  
(1) Overall statues display lamp  
Displays normal operation/all OFF/malfunction status for the entire system.  
(Normal operation/all OFF/malfunction status is indicated by the lamp being lit, not lit or blinking respectively)  
(2) Collective ON/OFF switch  
This switch allows turning all of the unit in the system ON or OFF at once.  
(3) Power supply wiring  
The central controller is supplied power from the PAC-SC50KUA Power Supply Unit via the M-NET transmission line and  
DC power line. The DC power between the PAC-SC50KUA Power Supply Unit and the central controller should be 10m  
or less. The central controller allows to be connected to M-NET transmission line at any position. (M-NET transmission  
line is the central control line which connects TB7 terminal of the outdoor unit)  
(4) M-NET transmission line  
The combined maximum distance between the outdoor units and the central controller, and between the outdoor units  
and farthest indoor units connected to the same refrigerant system or their remote controller, may be extended up  
500 meters.  
Therefore, even if the total distance is made longer by installing the outdoor units all in row, there will be no problem  
so long as the above maximum total distance limitation is not exceeded.  
-3-  
3 . Functions  
3-1 Specifications  
Item  
Specification  
DC24V,0.02A(Maximum loading)  
Power received from PAC-SC50KUA Power Supply Unit via M-NET transmission line.  
DC12V,0.2A(Maximum loading)  
Power is received from the PAC-SC50KUA Power Supply Unit via the DC power line.  
Input voltage  
Source power requirement  
0 ˚C +40 ˚C / 32 ˚F +104 ˚F  
Operating  
Temperature  
Humidity  
-20 ˚C +60 ˚C / 4 ˚F +140 ˚F  
Non operating  
Environmental condition  
Dimensions  
30 90%RH (No condensation)  
mm  
in  
120(H) 300(W) 80[*19](D)  
4-3/4(H) 11-13/16(W) 3-1/8[*3/4](D)  
*[ ] : indicate the thickness from the  
wall.  
Kg 1.0  
lb 2-1/4  
Weight  
System condition  
Indoor unit or independent OA processing unit or LOSSNAY  
: 50 units maximum (50 groups maximum)  
Number of units (indoor or independent OA processing unit or LOSSNAY) in one group  
: 1-16 units  
*Note  
Indoor unit, independent OA processing unit and LOSSNAY can not  
register to the same group.  
Number of remote controllers in one group  
: 1-2  
Number of control unit *3  
Number of system controllers in one group  
: 0-4 (including the number of remote controller in one group)  
: 0-3 for groups which have one remote controller.  
Number of indoor units interlocked with one OA processing unit or LOSSNAY  
: 0-16 (some types of OA processing unit can only be operated when inter-  
locked to a maximum of 9 units)  
User operating function  
ON/OFF  
The ON/OFF operation can be performed as a collective or per group.  
The switch operation for the operation mode setting can be performed as a collective  
or per group.  
[ Selectable operation mode for the indoor unit ]  
Operation  
mode  
Cool/Dry/Fan/Auto/Heat  
[ Selectable operation mode for the independent ventilation ]  
*1  
Heat recovery/By-pass/Auto  
The switch operation to set the High and Low speed can be performed as a collective  
or per group.  
( The 4 fan speed setting is available to the indoor that has 4 levels )  
*1  
Fan speed  
Operation  
Air direction  
and swing  
operation *1  
The air flow direction can be switched to 4 directions and swing operation as a collec-  
tive or per group  
Temperature setting can be performed collectively or per group.  
[Setting temperature range]  
Temperature  
setting  
Cool (Dry) operation  
Heat operation  
: 19 30 ˚C / 67 87 ˚F  
: 17 28 ˚C / 63 83 ˚F  
: 19 28 ˚C / 67 83 ˚F  
Auto operation  
-4-  
Item  
Prohibit local  
remote  
control  
Specification  
The specific functions of a local remote controller can be prohibited as a collective or  
per group.  
[Prohibit function]  
ON/OFF operation, Operation mode setting, Temperature setting and Filter sign  
reset operation.  
The set schedule operations can be switched to ON/OFF (local remote controller  
operation prohibition/permission) for each group.  
Timer operation  
Operation  
Filter sign  
reset  
The filter sign reset operation after the air filters are cleaned can be performed as a  
collective or per group.  
The ventilation operation of the interlocked OA processing unit or LOSSNAY can be coll-  
ective or per group.  
Ventilation  
[Ventilation operation]  
operation  
*1  
*3  
Low speed/High speed/Ventilation OFF  
Collective  
operation  
The overall status lamp displays conditions of the collective statues.  
Each group  
operation  
Each group operation is displayed on the operation setting screen (group) or operation  
monitor screen.  
Operation  
mode  
Fan speed  
Air direction  
Temperature  
setting  
Timer  
operation  
Filter sign  
Local remote  
control  
Monitor  
Displayed on the operation setting screen (group).  
prohibition  
Ventilation  
operation  
*3  
Room  
temperature  
display  
Central control  
prohibition  
External  
input signal  
condition  
The unit address and error code are displayed on the malfunction monitor screen when  
a malfunction occurs.  
Malfunction  
When the power is cut off, the current time is backed up for approximately one week.  
(When the controller is fully charged. The controller is fully charged by twenty-four  
hours after power feed.)  
Current time  
back-up  
Operation pattern setting can be performed.  
Operation interval : Minimum 10 minutes  
The daily operation pattern and weekly schedule for each group can be set.  
A pattern of one day : P1/P2/P3/ P1 / P2 / P3 / P4 / -  
* ON/OFF setting up to three times a day are possible for P1/P2/P3.  
* P4 enables to set operation prohibition of 3 times per day for the remote controller.  
* P1 / P2 / P3 implement the schedule which has combined P1/P2/P3 of ON/OFF  
Other  
Timer setting  
pattern and P4 of remote controller operation prohibition pattern together.  
( P1 = P1 + P4 / P2 = P2 + P4 / P3 = P3 + P4 is displayed.)  
* - is a day without timer operation.  
"The reference temperature and set-back value" or "Setting temperature" which are  
linked with timer operation can be set.  
-5-  
Item  
Specification  
Group name can be specified and display on the operation setting screen.  
* Group name setting is need at the initial setting.  
Group name  
designation  
External  
signal input  
interface  
Emergency stop/normal, ON/OFF, prohibit/permit for local remote operation can be  
controlled for units being controlled with a non-voltage contact signal input from an  
external source.  
Other  
When one or more units being controlled are operating, the "ON" signal will be out-  
put, and if a malfunction occurs in one or more units, the "malfunction" signal will  
be output.  
External  
signal output  
interface  
Initial setting (for installation and maintenance)  
The group setting operation for units (indoor units local remote controllers, independ-  
Group setting ent OA processing unit, LOSSNAY and slave system controllers) are performed on  
Connecting  
information  
setting  
the group setting screen.  
*3  
Interlocked  
setting  
The interlocked setting for the ventilation equipment as the OA processing unit or  
LOSSNAY , etc to indoor unit is performed on the interlocked setting screen.  
*3  
Malfunction  
history  
A maximum of the 64 most recent malfunction are displayed on the malfunction log  
monitor.  
Monitor  
Refrigerant  
system monitor  
The connected unit address are displayed on the refrigerant monitor screen.  
Some of the indication and function that appear on the each screen can be specified to  
match the needs of the user.  
User setting  
Master system  
controller/  
Slave system  
Master/Slave setting of the system controller.  
* G-50A does not support slaves.  
controller  
setting  
*2  
Prohibition  
setting enable  
/disable  
The setting of a system controller which the local remote control is prohibition enable or  
disable.  
Other  
The prohibited  
controller  
range setting  
Selecting of the prohibited controller which is only local remote controller or both  
local remote controller and the other system controller.  
K-control  
type  
The system composed of K-control type air conditioner equipment can be controlled  
using the K transmission converter (PAC-SC25KAA)  
*3  
*1 Each operation is available in accordance with the function of unit.  
*2 Master system controller and slave system controller.  
* G-50A does not  
support slaves.  
M-NET Gateway  
management range  
G-50A  
management range  
Another system controller  
management range  
Management range  
of G-50A  
Unit  
Unit  
Unit  
Unit  
When G-50A controls another system controller or when  
the system contains only G-50A :  
When G-50A is controlled by another system controller :  
(Example: MJ-300Gateway)  
G-50A is set as the master system controller.  
G-50A is set as the slave system controller.  
* G-50A performs the group setting in this configuration.  
* The group setting is performed by Master system  
controller.  
*3 OA processing unit (LOSSNAY) and the K transmission converter (PAC-SC25KAA) are not included in systems  
shipped to North America (USA & Canada).  
-6-  
NOTE :  
The following group setting cannot be performed.  
Unit groups which are not under the management of the master controller and are managed by the slave  
system controller.  
Master system  
controller  
Slave system  
controller  
Group  
Group  
Group  
A common group is managed by more than two master controllers.  
Master system  
controller 1  
Master system  
controller 2  
Group  
Group  
Group  
A slave system controller which exceeds the management range of the master system controller of two or  
more.  
Slave system  
controller  
Master system  
controller 1  
Master system  
controller 2  
Group  
Group  
Group  
Group  
-7-  
Overall status lamp  
3 - 2 Display Screen  
The lamp indicates the unit op-  
eration condition.  
……  
……  
ON  
OFF  
During operation  
All group are stopping  
……  
BLINKING  
Malfunction  
Display  
0022  
01  
PROHI  
BITED  
G-50A  
NOTE: The temperature setting includes  
a function to switch the display  
between  
Celsius  
(
˚
C)  
or  
Fahrenheit (  
˚F) (page 34).  
2
1
Continuously press  
and  
(2 seconds or longer)  
ENTER  
NEXT  
3
1
4
5
001  
MON  
04-2002  
P 4  
-8-  
The collective operation switch can be per-  
formed in the user setting mode for any screen.  
( Excluding menu screen )  
Collective operation switch  
If this switch is pressed during  
the operation, a whole group stop  
is performed.  
LAN changeover switch  
Refer to section "5. Initial setting ( page 25 ) " for  
explanation of the operation of these switches.  
LCD contrast adjustment knob  
LAN status lamp  
Orange LED indicates action and green LED indicates link.  
Service LAN connector  
Refer to section "5. Initial setting " for an explanation of this connector.  
Rear side  
Ethernet  
M-NET  
POWER  
1
5
1
9
A
B
S
RS232C  
CN1  
CN2  
12VDC GND  
Operation  
panel  
RS-232C connector  
M-NET Transmission  
line terminal  
External input / output interface connecter  
Refer to section "7. External input / out-  
put function ( page 38 )" for the detail  
of operation of these connectors.  
LAN(Ethernet)connector  
DC power supply terminator  
IP address setting  
Function select setting  
M-NET address setting  
6
7
FUNCTION SELECTS  
ADDRESS SETTING  
IP ADDRESS SETTING  
IP ADDRESS :  
1
2
3
4
5
6
7
8
M-NET ADDRESS: 000  
ON  
6 ADDRESS SETTING  
7 FUNCTION SETTING  
8 IP ADDRESS SETTING  
192.168.001.001  
MASK ADDRESS:  
255.255.255.000  
OFF  
8
Displays, or sets, the controller  
M-NET address.  
Refer to section "5. Initial setting  
(page 25)" for a detailed explan-  
ation of operation.  
Sets the function of the controll- Sets the LAN IP address.  
er.Refer to section "5. Initial set- Refer to section "5. Initial setti-  
ting(page 25)" for a detailed ex- ng(page 25)" for a detailed ex-  
planation of operation.  
planation of operation.  
VER.  
.
BACK  
3
4
5
2
GROUP NO  
NONE  
2002  
16-04-2002  
014 6602  
2002  
12 : 45  
(DETECT 014)  
INDICATE  
05-04-2002  
012 6607  
09 : 12  
(DETECT 012)  
INDICATE  
1-1-2001  
2002  
NONE  
TEMP. UNIT ˚C / ˚F  
7
a
LOSSNAY  
that  
Maintenance  
-9-  
4 . User operation  
Used the following two screens when user operation is performed.  
.......  
Operation monitor screen  
This screen displays ON/OFF and malfunction condition of unit.  
G-50A normally displays this screen.  
The unit operations can be performed by individual group or collective  
........  
Operation setting screen  
operation. These operation include the ON/OFF, operation mode, fan speed,  
temperature setting, air direction, ventilation setting, timer operation  
ON/OFF, local remote controller prohibition and filter sign reset are  
performed by group or collectively. In addition, this screen can also displays  
the room temperature of each group.  
The collective operation can be performed on any screen (except for the menu screen) in the user operation  
mode  
<Shifting to the operation monitor screen and operation setting screen>  
2
1
Press the  
switch and  
Press the  
switch and  
select "2. OPERATION SETTING"  
select "1. OPERATION MONITOR"  
BACK  
SCREEN  
Press the  
switch.  
ENTER  
Press the  
Press the  
switch.  
or  
switch to set  
"MON. (MONITOR)" on the blinking  
ENTER  
display and press the  
switch.  
(Individual group  
operation setting  
screen)  
The unit operation can be verified in  
a single glance.  
Press the  
or  
switch  
to set "COL. (COLLECTIVE)" or  
"GROUP" on the blinking display  
ENTER  
and press the  
switch.  
Refer to section "4-1 Operation  
condition monitor".  
<Returning to the user operation menu screen>  
BACK  
SCREEN  
Press the  
(back screen) switch.  
(Collective  
operation  
setting screen)  
Each unit operation  
setting is performed.  
Refer to section "4-2 Operation setting".  
-10-  
4 - 1 Operation condition monitor  
This function displays the ON/OFF/Malfunction status of specific units or group.  
ON/OFF/Malfunction status is shown by the indication corresponding to the unit or group appearing in inverse,  
normal or blinking display.  
The user may select display items by unit address, group number or group name.  
Refer to section "5-7 User setting (page 34)" for detail of user setting.  
During the user operation mode, this screen returns from any screen if there is no operation for approximately  
10 minutes.  
(1) Operation Method  
Note that operation is different for each of the following display methods.  
GROUP  
SELECT  
1
2
Press the  
switch to change the display group in desired opera-  
tion and monitor.  
ON/OFF  
When displaying the units in a given group, press the  
all the units in that group ON or OFF.  
switch turn  
1
1
2
Press the  
number to be operated.  
switch to move the " " select the group  
ON/OFF  
Press the  
switch to set the displayed group unit is indicated by the  
1
"
" symbol to the on/off mode.  
1 Press the  
switch to move the " " symbol. Select  
the group name to be operated.  
ON/OFF  
2
Press the  
switch to set the displayed group unit is indicated by the  
1
"
" symbol to the on/off mode.  
*Displays up to the first 3 characters of the set group name.  
(2) Display contents  
Reverse:ON  
Normal:OFF  
Blinking: Malfunction during  
units is off  
Blinking and Reverse:  
Malfunction during  
unit is on.  
*When a malfunction occurs, refer to section "4-4 Malfunction (page 23) ".  
-11-  
4 - 2 Operation setting  
There are two methods for the operation, performing the operation classified by groups or collective operation.  
4 - 2 - 1 Group operation setting  
Ventilation  
No. Name of switches  
Function  
Display  
Operation status display  
The ON/OFF condition of the dis-  
played group is switched.  
ON/OFF switch  
1
*When there is an interlocked OA processing unit  
or LOSSNAY , turning this switch ON starts  
operation in a [High] ventilated state.  
Each time to push the switch, a mode is selected in  
a sequence that goes from COOL, DRY, FUN,  
AUTO, HEAT and beck to AUTO for air conditioner  
group.  
Used to the type of the operation  
mode selection.  
Note:  
Operation mode can be selected ac-  
cording to the function of unit.  
If the unit is only cooling type.  
HEAT/AUTO mode may not appear  
on the display.  
Operation mode  
switch  
2
On the group composed of independent LOSSNAY ,  
operation mode is selected in a sequence that goes  
from HEAT RECOVERY,AUTO, BY-PASS and back  
to HEAT RECOVERY.  
Refer to the instruction manual of  
the air conditioner for more detail.  
Fan speed display  
4 levels  
The fan speed can be switched to four  
levels. Switching may be 3 levels or 2  
Fan speed  
switch  
3
4
levels, depending on the model.  
2 levels  
3 levels  
The setting temperature display.  
The setting range change according to the operation  
mode.  
COOL/DRY  
HEAT  
AUTO  
19 30 ˚C / 67 87 ˚F  
17 28 ˚C / 63 83 ˚F  
19 28 ˚C / 67 83 ˚F  
Temperature  
setting switch  
The setting temperature change is per-  
formed.  
NOTE: The temperature setting includes a function  
to switch the display between Celsius (°C)  
or Fahrenheit (°F) (page 34).  
-12-  
Function  
Display  
No. Name of switches  
These switches are used when the cur-  
rent time is set.  
Current time  
5
Refer to section "4-5 Current time setting" .  
setting switch  
The Air flow direction can be selected.  
The air flow direction can be selected  
to four directions and swing operation  
(auto vane).  
Air flow direction  
Air direction  
setting switch  
6
The operation mode of the interlocked  
ventilation can be performed.  
*Where there is no interlocked ventilation,  
Ventilation volume setting display  
Ventilation  
7
setting switch  
the operation of this switch is invalid.  
"Ventilation" is OA processing unit or LOSSNAY  
*
PROHIBIT : Local remote control specified on the  
prohibit setting screen is not possible.  
PERMIT : Local remote control is possible.  
Remote  
Used to prohibit for the local remote  
control.  
operation  
8
prohibit switch  
The timer operation can be performed  
according to a previously set operation  
pattern.  
Timer operation display  
Timer more  
switch  
9
ON  
OFF  
The filter sign display reset is per-  
formed.The reset processing is com-  
pleted by pressing this switch two  
times.  
Filter display  
Filter  
10  
11  
Reset switch  
No display  
Group number display  
This switch displays 1 50 group numbers.  
Group select  
switch  
The display group is changed.  
The switch can also display group names.  
Back screen  
switch  
12  
13  
The menu screen will be returned.  
The cursor position (blinking) moves.  
Use to back to the user menu screen.  
The position of a cursor can be moved  
when a cursor is appear.  
Cursor position  
switch  
*1: Room temperature can be displayed by selecting the room temperature display function per "5-7User  
Setting".( but limited to indoor unit group)  
-13-  
(1) Local remote control operation prohibition setting.  
G-50A can prohibit the operation of item such as connected local remote controller or slave system controller  
for each group. The prohibit items are ON/OFF operation, operation mode, temperature setting and filter sign  
reset operation.  
GROUP  
SELECT  
Press the  
switch to display the group that the operation  
1
2
prohibition setting will be performed.  
Press the  
or  
switch to set "PROH. (PROHIBIT)" on the  
ENTER  
blinking display and press  
switch.  
1
2
The prohibit setting screen is displayed.  
Press the operation switch for the items to be prohibited.  
ON/OFF  
1
When the ON/OFF operation is to be prohibited :  
When the operation mode is to be prohibited  
MODE  
2
:
4
7
When the setting temperature is to be prohibited :  
When the filter sign reset is to be prohibited  
or  
RESET  
DEL.  
:
1
2
The items selected for prohibition are shown in reverse display.  
BACK  
SCREEN  
After setting of prohibit item, press the  
operation setting screen.  
switch to go back to the  
The operation setting screen is displayed.  
1
2
Remote operation prohibition/permission display will  
be change PERMIT to PROHIBIT and the pro-  
hibited item set on the prohibit setting screen are  
shown in reverse display.  
REMOTE  
PROHIBITION  
Press the  
ON " .  
switch to set "PROHIBIT  
0
The prohibit setting is completed.  
The system controller that performed the local remote control operation prohibition setting can  
operate the prohibited items.  
NOTE:  
When the No.4 function select is set ON, the prohibit setting of the local remote control operating  
cannot be made. For details, refer to "5-3 Function setting."  
-14-  
(2) G-50A operation prohibition  
The operation of this controller is prohibited when an operation prohibition setting for this controller is received  
from a system controller other than this controller or when an external input signal is used.  
PROHI-  
BITED  
The  
is displayed and the prohibition operation is display in re-  
verse display when operation of this controller is prohibited by another  
system controller or an external input signal used.  
The prohibition operation which is displayed in reverse display is not  
possible to operate in this condition.  
(3) Using the function area  
To select the function from the function area, use the  
or  
switch to move the cursor to the blinking to  
ENTER  
the function of your choice and press the  
on screen.  
switch. The current cursor position appears as a blinking indication  
MON. (MONITOR)  
PROH. (PROHIBIT)  
COL. (COLLECTIVE)  
M (memory)  
: Shift to the operation monitor screen  
: Shift to the prohibit setting screen  
: Shift to the collective operation setting screen  
: Stores the setting currently shown on the screen in memory.  
: Reads the setting stored in memory and activates them for the currently dis-  
played group.  
MR (memory read)  
-15-  
4 - 2 - 2 Collective operation setting  
A collective operation setting and a collective prohibit setting can be performed for all the group managed by  
this controller at one time.  
(1) Collective operation setting  
1 Press the  
switch to set "COL. (COLLECTIVE)" in blinking  
ENTER  
display and press the  
screen.  
switch on the group operation setting  
2
3
The collective operation setting initial screen is displayed.  
Select the items for operation setting on the collective operation setting  
initial screen.  
The operation method is same as described in section "4-2-1 Group  
operation setting" (Page 12).  
The items which were not set, remain set to the same  
condition that were set before the collective operation was  
performed.  
NOTE:  
4
5
6
The items selected for the operation blink on the collective operation  
setting screen.  
When all setting are completed, press the  
switch to display  
the "SET" in blinking display for the indicated function area.  
ENTER  
Press the  
switch one time to complete this setting.  
The collective setting is completed when the previous  
items light. (After the setting are completed, start  
The collective setting is executed.  
The collective setting takes approximately 20  
seconds.  
from step  
to perform operation again if change  
3
operation are required.)  
The display of setting contents is erased  
NOTE:  
when shift to another screen.  
-16-  
(2) Collective prohibit setting  
1 Press the  
switch to set "PROH. (PROHIBIT)" in blinking  
ENTER  
display and press the  
initial screen.  
switch on the collective operation setting  
2
3
The collective prohibit setting initial screen is displayed.  
Select the items to be prohibited or permitted on the collective prohibit  
setting initial screen.  
Each time to press the switch corresponding to the prohibition item,  
the prohibition or permission is selected.  
Prohibition setting : The prohibited item is displayed in reverse with  
blinking.  
Permission setting : The permitted item is displayed with blinking.  
The selection method concerning to prohibit/ permit item is same as de-  
scribed in section "4-2-1 (1) Local remote control operation prohibit  
setting". ( page 14 )  
4
5
The items selected for the prohibition or permission are displayed with  
blinking.  
And the "SET" is displayed with blinking in the function area.  
ENTER  
When all setting are completed, press the  
plete this settings.  
switch one time to com-  
The collective prohibit setting is excused.  
The collective prohibit setting takes approximately  
20 seconds.  
6
7
8
The collective setting prohibition/permission item  
setting is completed when the previous item light.  
After setting of prohibit/permit items, press the  
BACK  
SCREEN  
switch to back to the collective operation  
setting initial screen.  
-17-  
9
The collective operation setting initial screen is displayed.  
REMOTE  
PROHIBITION  
10  
Press the  
switch to set "REMOTE CONTROL PROHIBIT ".  
0
11Remote operation prohibition/permission display ("REMOTE CONTROL  
PROHIBIT " ) is displayed with blinking.  
12  
Press the  
or  
switch to display the "SET" in blinking display  
for the indicated function area.  
ENTER  
Press the  
ting.  
switch one time to complete the collective prohibit set-  
13  
The collective prohibit setting is executed.  
It takes approximately 20 seconds.  
14  
The collective prohibit setting is completed when the remote operation  
prohibition/permission display is change to be light.  
The display of setting contents is erased when shift to another screen.  
NOTE:  
The following restrictions in the collective operation settings.  
1. Temperature setting  
The range that can be set falls within 19˚C 28˚C /67˚F 83˚F regardless of the operation mode.  
2. Operation mode selection, fan speed selection, air direction, etc.,can be collectively set regardless  
of the functions of the unit. However, actual setting to a unit without functions cannot be performed.  
To obtain the correct setting contents, refer to the respective group operation setting screens.  
-18-  
4-3 Timer operation  
A weekly schedule setting can be specified for each group.  
Possible to set on the timer the schedule to prohibit operation of the local remote controller in addition to ON/OFF  
schedule.  
Always set to current time on the current time setting screen when the schedule setting is performed.  
Refer to section "4-5 Current time setting".  
When browser monitoring, or schedule setting from central monitoring  
NOTE: PC, was performed, the timer screen of this function cannot be used.  
"This function is set from a higher level." is displayed on this screen.  
<Schedule setting function summary>  
1
2
The ON and OFF (PROHIBITION and PERMISSION) times can set in 10-minute units.  
The daily operation schedule can include up to three ON (PROHIBITION) time settings and three OFF (PERMISSION)  
time settings.  
3
Three types (P1-P3) of daily ON/OFF pattern and one type (P4) of prohibition/permission pattern are available  
respectively, each of which can be set every to each group.  
Week day which is not set in timer pattern is displayed with (-).  
In addition, it is also possible to set the schedule which has combined P1 -P3 and P4 together .  
( P1 / P2 / P3 ) In this case, both of ON/OFF pattern and prohibition/permission pattern are daily executed.  
Any one of these options may be selected for each separate day of the week.  
The schedule patterns can be copied easy to other group by the memory and memory read functions because the  
schedule contents can be recorded in the memory.  
4
5
The setting temperature or set-back value setting can also be supported during timer operation.  
<Shifting to the schedule setting screen>  
BACK  
SCREEN  
3
Press the  
switch to select  
Press the  
switch to go back to  
"3 SCHEDULE SETTING".  
the user operation menu screen.  
The schedule contents of each  
group can be monitor.  
Weekly schedule pattern setting  
can be performed.  
Press the  
switch to move the cursor position  
to P1 (or P2 or P3 or P4 ).  
BACK  
SCREEN  
Press the  
switch.  
(The "P1" indication blinking.)  
ENTER  
And press the  
switch to the  
P1 (Pattern 1) Schedule pattern  
setting screen.  
Schedule pattern (P1 P3 , P4 )  
setting can be performed.  
-19-  
(1) Schedule pattern (P1 P3) setting  
Follow the procedures described below to set each daily schedule pattern for each group.  
The setting temperature or set-back values setting are also performed in the schedule setting operation. To enter  
the setting temperature or set-back value setting select SET-BACK or SET TEMP. Accordance with section "5-7  
user setting (page 34)" in advance.  
The setting temperature or set-back value selected in this way take effect only during timer operation.Also set-  
back operation is cancelled if the setting temperature is changed using this central controller or a local remote  
controller.  
( The set-back operation resumes at the next timer-ON time )  
<Schedule pattern setting( P1 P3, P4 ) >  
GROUP  
SELECT  
1
2
3
Press the  
setting.  
switch to display the group in desired a timer  
switch to move the cursor position to  
Press the  
the pattern ( P1 P3, P4 ) to be setting.  
ENTER  
Press the  
switch one time.  
4
5
The schedule pattern setting screen is displayed.  
Press the  
switch to move the cursor position to  
the first ON (PROHIBITION) time.  
CLOCK / PATTERN  
Press the  
switch to select the ON (PROHIBITION)  
6
7
5
8
/
time. (time is changed by 10 minutes unit.)  
ENTER  
Press the  
switch one time to set ON (PROHIBITION) schedule.  
(The cursor moves to the next setting position.)  
8
9
Perform operation to select OFF (PERMISSION) time.  
6
Perform operation to set the OFF (PERMISSION) time.  
7
10Repeat operation to to set the second and third ON/OFF (PRO-  
6
9
HIBITION/PERMISSION) schedules in the same manner.  
When the second or third ON/OFF (PROHIBITION/PERMISSION) sch-  
:
edule is not used, the characters "  
" remain display and press  
ENTER  
the  
switch one time.  
11  
12  
To cancel the ON/OFF (PROHIBITION/PERMISSION) time that was set  
previously, use the switch to move the cursor  
to the time position to be cancelled and press the  
RESET  
DEL.  
switch.  
When the P1 setting are completed,perform operation to as nec-  
2
11  
essary to perform the setting for P2 or P3 or P4 .  
Setting example in case of P4  
-20-  
(2) Set-back values and setting temperature setting  
Setting the set-back values and setting temperature can be performed only when selecting either "SET BACK"  
or "SET TEMP" on the user setting screen in the initial setting mode.  
Set-back operation  
Set-back operation is a method which reduces the air conditioner running cost by controlling the operation with  
specified time band for lowered load. In other words the unit operates at a few degrees higher for cooling and  
a few degrees lower for heating in the specified time band.  
EXAMPLE When the reference temperature is 24˚C / 75˚F and the set-back value is set to 2˚C / 4˚F.  
Cooling operation : 24˚C+2˚C=26˚C / 75˚F+4˚F=79˚F  
Heating operation : 24˚C-2˚C=22˚C / 75˚F-4˚F=71˚F  
Setting temperature operation  
This operation sets the temperature when timer ON is set to a predesignated temperature regardless of the op-  
eration mode.  
1
Press the  
switch to move the cursor posi-  
tion to the set-back reference  
temperature or setting tempera-  
ture.  
NOTE: The temperature display  
can be switched between  
Celsius (°C) or Fahrenheit  
(°F) (page 34).  
5
8
2
Press the  
/
(CLOCK/PATTERN) switch to  
select the following items.  
Set-back value;  
The reference temperature and  
set-back value for each ON time  
period are selected.  
Setting temperature:  
The setting temperature for  
each ON time period is selected.  
ENTER  
3
4
Press the  
setting.  
switch to make  
Repeat operations and  
3
to  
2
* The selecting range:  
set the set-back value or setting  
temperature for each ON/OFF  
schedule.  
The reference temperature for set-back operation  
: 19˚C 28˚C (1˚C unit) / 67˚F 83˚F (2˚F unit)  
: 0 9 degree (1 degree unit)  
The set-back value  
/ 0 18 degree (2 degree unit)  
BACK  
SCREEN  
: 19˚C 28˚C (1˚C unit) / 67˚F 83˚F (2˚F unit)  
5
The setting temperature  
Press the  
hed.  
switch, when finis-  
(3) Weekly schedule setting  
The schedule pattern P1 to P3, local remote control prohibition (P4), P1 to P3 of a composite pattern composed of  
P1 to P3 and P4, and non-timer operation(-) are set for each day.  
GROUP  
SELECT  
1
Press the  
switch to display the group in desired weekly  
schedule setting.  
2
Press the  
switch to move the cursor to the pat-  
tern position to be set.  
-21-  
5
8
3
4
/
Press the  
P4 or ( - ).  
(CLOCK/PATTERN) switch to select P1 to  
ENTER  
Press the  
switch one time to complete the setting.(The cursor  
will move to the next setting position. )  
5
Repeat operations and to assign the schedule pattern to each  
day.  
4
3
When the No.4 function setting is set ON, P4 cannot be set.  
NOTE:  
(4) Copying schedule content to other groups (memory,memory read)  
The schedule pattern P1 to P3, weekly schedule pattern, set-back value or setting temperature of one group  
can be recorded and copied to memory or to another desired group.  
Correction and modification can be easily performed after the copy operation is completed.  
1
2
3
Display the original group on the weekly schedule setting screen.  
Press the  
switch to move the cursor to "M" .  
ENTER  
Press the  
switch one time to record the setting date in memory.  
*To erase date from the memory, return to the user operation menu  
screen.  
4
5
"M" is displayed in reverse with blinking.  
GROUP  
Press the  
switch to select the group to which the data is  
SELECT  
to be copied.  
6
7
Press the  
switch to move the cursor to "MR" .  
ENTER  
Press the  
switch to set the contents which will be the same as the  
setting data in memory.  
The same contents are displayed.  
The contents stored in memory can be copied to other groups any number  
of times because these contents will not be erased even if the memory read  
operation is used.  
-22-  
4 - 4 Malfunction  
The malfunction monitor function is used for conforming to the details of the malfunction condition when a  
malfunction is displayed on the operation monitor screen.  
The malfunction monitor function can display data describing up to nine malfunctions in the address number se-  
quence on one page. This data contains the unit address where the malfunction occured, the error code and the  
unit address where the malfunction was detected.  
After checking the unit address where the malfunction occurred and the error code, please contact your dealer  
or technical representative as soon as possible.  
< Shifting to the malfunction monitor screen >  
BACK  
SCREEN  
4
Press the  
switch to  
Press the  
switch to go back  
select "4 MALFUNCTION MONITOR".  
to the user operation menu screen.  
The unit address  
The unit address  
where the malfunction was detected  
where the malfunction occurred  
Error code  
When there is no malfunction taking place, [ NO ERROR ] lights up instead of [ ERROR CODE ].  
NOTE :  
Page change operation  
The page change operation is performed by the  
switch.  
Pressing the  
Pressing the  
or  
or  
switch shows the current display page +1.  
switch shows the current display page -1.  
Malfunction reset operation  
RESET  
DEL.  
Press the reset  
switch to reset all malfunctions.  
The reset operation can be performed on any page.  
When operation of the G-50A is prohibited, reset operation is invalid.  
NOTE :  
-23-  
4 - 5 Current time setting  
The current time, day, month and year are set on the current time setting screen.  
< Sifting to the current time setting screen >  
BACK  
SCREEN  
5
Press the  
switch to back to  
Press the  
switch to select  
the user operation menu.  
"5 CURRENT TIME SETTING".  
04-2002 MON  
Press the  
switch to move the cursor position to be set.  
(CLOCK/PATTERN) switch to set the num-  
1
2
5
8
Press the  
ber or day that is displayed.  
04-2002 MON  
3
4
5
Repeat operations and to set the date day, month, year and  
time.  
2
1
ENTER  
Where all setting have been completed, press the  
switch.  
The current time setting is executed and "done" is displayed with  
blinking for two seconds to indicate the current time setting completed  
and the clock count will start with the second reset to 0.  
2002 SUN  
-24-  
5 . Initial setting  
5 - 1 Shifting to initial setting menu  
Shift to the initial setting menu by continuously pressing  
+
(2seconds or longer) on the user operation menu  
(2seconds or longer) on the initial setting screen  
screen.(Refer to section "3-2".)  
Shift to the user operation menu by continuously pressing  
(Refer to section "3-2".)  
+
When group information is not saved, the following initial setting screen is displayed when power is turned on at this  
controller.  
MENU  
WED 15:29  
1
2
3
4
ADDRESS SETTING  
FUNCTION SELECT  
IP ADDRESS SETTING  
GROUP SETTING  
PLEASE SET  
INITIAL SETTING  
5 - 2 M-NET address setting  
6
1
(1) Select  
"6.ADDRESS SETTING"(or  
"1.ADDRESS SETTING).  
INS.  
0
9
(2) Set the controller address by pressing the  
to  
switches.(000,201 250).  
BACK  
SCREEN  
(3) When the  
MENU  
switch is pressed after setting, the screen returns.  
6
Press the  
switch  
WED 15:29  
to select"6ADDRESS M-NET ADDRESS  
SETTING"  
M-NET ADDRESS: 000  
6
7
8
ADDRESS SETTING  
FUNCTION SETTING  
IP ADDRESS SETTING  
BACK  
SCREEN  
Press the  
switch to back  
to the initial  
setting menu.  
BACK  
When the controller is shipped from the factory, the address is set to "000".  
(Always set the address to "000" When the K transmission converter is managed.)  
Observe the following precautions when this controller manages the M-NET models and K control mod-  
els by using the K transmission converter (PAC-SC25KAA).  
NOTE :  
Refer to the K transmission converter instruction manual for further details.  
Address of this controller  
Always set the address of this controller to "000" .  
Function select setting of this controller  
Always set the No.3 function setting to ON.  
Indoor unit address  
Set all the M-NET models of indoor units from 001, next, set the address of the K control indoor unit.  
001 M-NET indoor unit maximum address  
mum address 050  
K control indoor unit mini-  
Indoor unit address  
* The K transmission converter (PAC-SC25KAA) is not included in systems shipped to North America  
(USA & Canada).  
-25-  
5 - 3 Function setting  
The functions of this controller are set according to the function settings.  
The functions selects are set to OFF when the controller is shipped from the factory.  
7
2
(1) Select  
"7.FUNCTION SETTING"(or  
"2. FUNCTION SETTING").  
1
8
(2) Switch the function by pressing the function No. you want to change, or the  
of the same number.  
to  
switch  
Each time the switch is pressed, the ON/OFF state of that No. is switched. (NO. 1 and NO. 2 cannot be changed.)  
<Operation example>  
3
1)When Input  
switch was pressed.  
3
3
ON  
OFF  
ON  
OFF  
: Active  
BACK  
SCREEN  
(3) When the  
switch is pressed at the end of function switching, the screen returns.  
7
Press the  
switch  
MENU  
WED 15:29  
FUNCTION SETTING  
to select"7FUNCTION  
SELECT"  
1
2
3
4
5
6
7
8
6
7
8
ADDRESS SETTING  
FUNCTION SETTING  
IP ADDRESS SETTING  
ON  
OFF  
BACK  
SCREEN  
Press the  
switch to go back  
to the initial  
setting menu.  
BACK  
<Function selects>  
No. 1  
No. 2  
No. 3  
No. 4  
No. 5  
No. 6  
No. 7  
Reserved for future use (Leave this switch set to OFF)  
Reserved for future use (Leave this switch set to OFF)  
OFF : No K transmission converter installed  
OFF : Operation prohibit setting valid  
ON : K transmission converter installed  
ON : Operation prohibit setting invalid  
ON : Emergency stop broadcast disabled  
OFF : Emergency stop broadcast enabled (Be sure to use)  
External input changeover (refer to section "7 External input/output function")  
No. 8  
The range of a controller which the operation is prohibited  
OFF : Both of the system controller and the local remote controller ON : Only the local remote controller  
-26-  
5 - 4 Group configuration setting  
Registration can be made for the indoor units, local remote controllers and slave system controllers in the same  
group.  
Registration can be also performed for the group which is composed of only OA processing unit or LOSSNAY.  
( Independent ventilation group )  
< Example for the group configuration >  
Outdoor unit  
Indoor unit  
M-NET local remote controller  
OA processing unit or LOSSNAY  
M- NET  
Transmission line  
Independent ventilation group  
Air conditioner group  
Supply the power from the power supply unit (PAC-SC50KUA) through the M-NET transmission line and DC line.  
Perform the following procedures to set the group configuration because the interlocked operation setting will  
not be performed if the group configuration settings have not been performed.  
1
When the power is supplied to the controller, the screen shown on the  
left is displayed.  
WED 15:29  
1 ADDRESS SETTING  
2 FUNCTION SETTING  
3 IP ADDRESS SETTING  
4 GROUP SETTING  
4
1
2
Press the  
(or  
) switch to select "1 GROUP SETTING" .  
(or "4 GROUP SETTING")  
PLEASE SET  
INITIAL SETTING  
The group configuration setting screen is displayed.  
GROUP  
SELECT  
3
4
Press the  
Press the  
switch to display the group number to be set.  
switch to move to move the cursor to the  
address display position to be set.  
Used the numeric keypad switch to set the address of the indoor  
unit, local remote controller, slave system controller in the display  
group number.  
5
< Operation example >  
When the indoor unit which address is 012.  
1) Input "0"  
2) Input "1"  
3) Input "2"  
4) Press the  
0
01  
012  
switch 012  
* It is also possible just enter "1" "2" .  
< When the input is incorrect >  
Before pressing  
switch, continue to input the data. After pressing  
switch, move the cursor to the addresses to be deleted and press  
RESET  
DEL.  
the  
switch to delete these addresses.  
Do not set interlocked ventilation unit such as OA processing unit or LOSSNAY.  
Even if the addresses are input any order, it is switched to a sequence starting with low-order ad-  
dress.  
NOTE:  
The independent ventilation unit can not set to the indoor unit group and it can not be set to as an  
interlocked ventilation unit.  
-27-  
Set all the units and controllers to be registered in the displayed group  
number.  
6
Repeat operation to to set all groups managed by this control-  
3
5
ler.  
BACK  
SCREEN  
When all setting are completed, press the  
switch.  
7
When there are M-NET local remote controllers in the  
system,always be sure to set the local remote controller  
address. The local remote controller will not operate if  
the address setting is not performed.  
NOTE:  
However, when the local remote controller is an MA remote  
controller (PAR-20MAA) or K-control type remote controller,  
setting is not performed.  
If there is a K transmission converter is a component  
in the system, do not perform the group configurations  
setting of this controller for the K transmission converter.  
8
The following initial setting screen is displayed.  
When the interlocked operation settings are performed, refer to section  
"5-5 Interlocked operation setting".  
MENU  
WED 15:29  
When the group name settings are performed, refer to section  
"5-6 Group name setting".  
When the user settings are performed, refer to section "5-7 User setting".  
NEXT  
Group configuration date collective deletion  
Additions  
DEL.  
Display "G00" in the group configuration setting screen and press the  
switch two times continuously to  
delete the all group configuration data and all interlocked operation data.  
When this unit is set to the slave system controller by the function select , group registration can not be  
made. However confirmation of the contents of group registration is possible.  
NOTE:  
Simultaneously press the  
and  
keys on the user operation menu screen for 2 seconds to perform group  
configuration setting. The initial setting menu screen is displayed. Select "1. GROUP SETTING" on the setting  
menu screen, wait for the group setting screen to appear, and change the setting.  
9
When the necessary initial settings are complete, simultaneously press the  
and keys on the user operation menu screen for 2 seconds.  
When returned to the user operation screen, register processing for the group  
configuration information and initial set up processing for each unit and each  
controller is executed.(This process takes approximately 5 7 minutes.)  
-28-  
5 - 5 Interlocked operation setting  
Registration of interlocked operation of Ventilation unit (OA processing unit and LOSSNAY) with single or multiple  
indoor unit is performed. All indoor units to be interlocked with ventilation unit for operation should be registered  
for the interlocking with ventilation unit.  
<Example for the interlocked group configuration>  
Outdoor unit  
Indoor unit  
M-NET local remote controller  
OA processing unit or LOSSNAY  
M-NET  
Transmission line  
1
Simultaneously press the  
screen for 2 seconds.  
and  
keys on the user operation menu  
Always perform the mode change operation from the user oper-  
ation menu.  
NOTE:  
Mode change operation from other screens is ineffective even if  
performed.  
2
3
Initial setting menu screen is displayed.  
2
Press the  
switch to select "2 INTERLOCKED SETTING" .  
NEXT  
4
5
The interlocked setting screen is displayed.  
Minimum address of the interlocked OA processing unit or LOSSNAY unit  
which can be set to interlock with indoor unit is displayed on the "INTERL-  
OCKED UNIT ADDRESS" display position. And the cursor is displayed in  
the unit address display position.  
GROUP  
SELECT  
Press the  
switch to display the address number of the in-  
terlocked OA processor unit or LOSSNAY that the setting will be perf-  
omed on.  
-29-  
6
Used the numeric keypad switch to set the address of the indoor unit  
that operates with displayed interlocked OA processing unit or LOSSNAY.  
<Operation example>  
When the indoor unit which address is 012.  
1) Input "0"  
2) Input "1"  
3) Input "2"  
4) Press the  
0
01  
012  
switch 012  
*It is also possible just enter "1" "2" .  
<When the input is incorrect>  
Before pressing switch, continue to input the data. After pressing  
switch, move the cursor to the address to be deleted and press  
DEL.  
the  
switch to delete these addresses.  
7
8
9
Set all the indoor units that operate with displayed interlocked OA  
processing unit or LOSSNAY.  
Repeat operation to to set the indoor units of all interlocked op-  
5
7
eration units managed by this controller.  
BACK  
SCREEN  
When all settings are completed, press the  
switch.  
Initial setting screen is displayed.  
This ends the interlocked operation setting.  
When the interlocked operation settings are performed, refer to section  
"5-5 Interlocked operation setting" .  
When the group name settings are performed, refer to section "5-6 group  
name setting" .  
When the user setting are performed, refer to section "5-7 user setting" .  
NEXT  
Simultaneously press the  
and  
keys on the initial setting menu screen  
for 2 seconds to complete user operation.After the initial setting processing  
is completed (The initial setting screen will be displayed), refer to section  
"4 User operation ( page 10 )" and perform user operation.  
When this unit is set to slave system controller by No.2 function select, interlocked operation settings can-  
not be adjusted. However monitoring of the contents of the interlocked operation settings is possible.  
NOTE:  
-30-  
5 - 6 Group name setting  
( 1 ) Setting method  
Specify new group name.  
Either alphabet, numeric characters, hyphens or spaces can be used for name setting.  
Maximum of ten characters can be set.  
When the group name is displayed on the operation monitor screen, the first three characters of the group name  
are displayed.  
1
4
1 Press the  
(or  
)switch to select"1. GROUP SETTING"  
(or"4. GROUP SETTING") of the initial setting menu.  
NEXT  
2
3
The group configuration setting screen is displayed.  
GROUP  
Press the  
switch to display the group number which will  
SELECT  
be set in the group name setting.  
ENTER  
4
Press the  
switch one time.  
The group name setting screen is displayed.  
5
The character " " is displayed in reverse.  
Press the  
switch to move the cursor to the de-  
6
sired character.  
ENTER  
Press the  
switch.  
7
The selected character is displayed in the group name display area.  
8
Repeat operation or and set the group name.  
7
6
When incorrect character is set, refer to section "Group name correc-  
tion method (page 32)" .  
Group name display area  
-31-  
BACK  
SCREEN  
When the group name setting is completed, press the  
switch.  
9
The group configuration setting screen is displayed.  
10  
Repeat operation to and perform the group name setting for  
3
9
each group.  
BACK  
SCREEN  
11 When all the group name settings are complete, press the  
switch.  
12 The initial setting menu screen is displayed.  
To perform the setting, refer to section "5-6 User setting (page  
34)".  
Simultaneously press the  
and  
keys on the initial setting menu  
screen for 2 seconds to complete user operation.  
Next refer to section " 4 User operation " and perform user operation.  
NEXT  
When performing corrections to the group name, move the group name  
cursor to the character to be correct.  
Group name cursor movement method  
Move the cursor to one of the group name cursor movement mark  
using the  
switch.  
Deletion methods  
Move the group name cursor to the character to deleted and press  
DEL.  
the  
switch to delete the character.  
Group name cursor  
Group name cursor movement mark  
Insertion methods  
Move the group name cursor to the location where character is to be  
INS.  
9
insert and press the  
switch to enter desired space.  
-32-  
( 2 ) Group name copy  
A certain group name can be copied to another group.  
( This method use the "M" (memory) and "MR" (memory read) functions.)  
It is convenient to use a group name for other groups because a group name that was copied can also be cor-  
rected.  
GROUP  
SELECT  
1
Press the  
switch to display the original group on the group  
switch to move the cursor to "M" .  
name setting screen.  
2
3
Press the  
ENTER  
Press the  
switch one time to record the setting name in memory.  
4
5
"M" is displayed in reverse with blinking.  
Recording the setting name to memory is completed.  
GROUP  
SELECT  
Press the  
switch to select the copy destination group.  
6
7
Press the  
Press the  
switch to move the cursor "MR" .  
switch to read in memory.  
ENTER  
8
Preformed the memory read for the group name.  
Refer to section " (1) setting method (page 31)" and perform the cor-  
rection of the group name.  
-33-  
5-7 User setting  
To match the needs for the user this menu is to specify some of the indications and functions that appear on  
the user operating screen.  
1
5
Press the  
switch to select "5 USER SETTING" on the initial  
setting menu screen.  
NEXT  
The user setting screen is displayed.  
2
Press the  
switch to select the items to be set.  
BACK  
SCREEN  
When all the selection are completed,press the  
to the initial setting menu screen.  
switch to return  
3
7
TEMP. UNIT ˚C / ˚F  
Setup condition before delivery from the shop  
Item 1. Operation monitor screen display settings  
"GROUP NO."  
: Groups are indicated by group number on the operation monitor screen.  
"NAME"  
: Groups are indicated by their first three characters of the group name on the  
operation monitor screen.  
"UNIT ADDRESS" : Individual units are indicated by their unit address on the operation monitor  
screen.  
Item 2. Setting the set-back value and the setting temperature used in conjunction with schedule operation.  
The set-back value or the setting temperature setting are possible when operation is linked with the  
schedule operation.  
"SET-BACK"  
"SET TEMP"  
"NONE"  
: Allows setting set-back value used in conjunction with ON/OFF patterns during  
schedule operation.  
: Allows setting of the setting temperature used in conjunction with ON/OFF pat-  
terns during schedule operation.  
: The schedule operation is only performs normal ON/OFF patterns.  
Item 3. Setting filter sign indication  
"INDICATE"  
"NONE"  
: Allows the indication of filter sign.  
: Filter sign is not indicated.  
Item 4. Group number display  
"INDICATE"  
: Enable display of group number on the operation setting screen and the schedule  
setting screen.  
"NONE"  
: Group number is not indicated.  
Item 5. Change to the sequence of current time  
"2001-1-1"  
: Current time indicate in a sequence of year,month and date on the current time  
setting screen.  
"1-1-2001"  
: Current time indicate in a sequence of date,month and year on the current time  
setting screen.  
Item 6. Room temperature indication  
"INDICATE"  
"NONE"  
: Indicated every each group  
: Not indicated every each group  
Item 7. Temperature unit  
"
"
˚
˚
C"  
F"  
: Setting Centigrade  
: Setting Fahrenheit  
-34-  
5-8 IP address setting  
This function allows setting of the IP address and mask address needed at LAN connection.  
MENU  
WED 15:29  
6
1 Select the  
switch select "8. IP ADDRESS SETTING"  
on the initial setting menu screen.  
6
7
8
ADDRESS SETTING  
FUNCTION SETTING  
IP ADDRESS SETTING  
BACK  
IP ADDRESS SETTING  
IP ADDRESS :  
The IP address setting screen appears.  
2
Move the cursor to the address setting position by pressing the  
and keys.  
192.168.001.001  
MASK ADDRESS :  
255.255.255.000  
,
,
3
4
Set the address with the 0 to 9 numeric switches.  
When all address setting are complete, return to the initial  
BACK  
SCREEN  
setting menu screen by pressing  
switch.  
5-9 Initial setting tool connection function  
This function connects the initial setting tool PC by LAN.  
Group setting, interlocked setting, and other information can be downloaded to this unit by using the initial setting tool  
Refer to the initial setting tool manual for an explanation of the initial setting tool functions and operating procedures.  
LAN changeover switch  
ACT  
1 Remove the cover from the controller by inserting a flat blade  
screwdriver into the gap between the cover and body and twi-  
LINK  
sting the screwdriver.  
2 Use the dedicated cable (sold separately) to connect the initial  
setting tool PC to the service LAN connector.  
3 When changed to FRONT with the LAN changeover switch,  
the initial setting tool PC is connected to the service LAN  
Service LAN connector  
FRONT  
REAR  
connector.  
4 When setting with the initial setting tool is complete, return the  
LAN changeover switch to the REAR position.  
*When a service LAN connector is used, the option Model  
PAC-YG00FA-E is necessary.  
-35-  
6. Maintenance  
6-1 Refrigerant system monitor  
This function allows monitoring of the address of the outdoor units, and BC controller connected to the refrig-  
erant system. It is useful for checking address settings, transmission line connection during installation.  
3
Press the  
switch to select "3 REFRIGERANT MONITOR" on  
1
the initial setting menu screen.  
NEXT  
The process for monitoring of the refrigerant system is executed.  
Please wait.  
The refrigerant system monitor screen of the lowest outdoor unit address  
is displayed.  
GROUP  
SELECT  
Press the  
switch to change the displayed refrigerant system.  
BACK  
SCREEN  
When the monitoring is end, press the  
setting menu screen.  
switch to back to the initial  
-36-  
6-2 Malfunction log monitor  
This function allows monitoring of a log of the last 64 malfunctions.  
The contents of malfunction and time the malfunction occurred is displayed. The contents of malfunction  
is the address of the unit where it occurred, the error code and the address of the unit that detected the  
malfunction.  
This data are remains in the memory even if supplied power is cut off.  
The malfunction log data can be deleted using the malfunction log reset operation. If the malfunction log data  
is reset after the system is serviced, the log will provide a convenient record of the malfunction that have  
occurred after that time when the system is next serviced.  
4
1
Press the  
switch to select "4 MALFUNCTION MONITOR" on  
the initial setting menu screen.  
NEXT  
The malfunction log monitor screen is displayed.  
2
Changing pages on the malfunction log monitor screen.  
2002  
16-04-2002  
2002  
05-04-2002  
2002  
GROUP  
SELECT  
Each time this switch is pressed, the current page  
+1 is displayed.  
(
(
)
)
,
GROUP  
SELECT  
Each time this switch is pressed, the current page  
-1 is displayed.  
,
3
Malfunction log reset operation  
RESET  
Press the  
DEL.  
switch to clear the malfunction log.  
-37-  
7.External input/output function  
* External signal input requires the external I/O adapter (Model : PAC-YG10HA-E) sold separately.  
7-1 External input function  
(1) The function of external input  
Emergency stop/normal operation, ON/OFF, local remote control prohibit/permit can be controlled for all air  
conditioners being controlled with a non-voltage contact signal input from an external input source. (Select with  
the dip switches)  
The condition of external input signal is displayed on the operation setting screen for each group.  
Function  
Remarks  
No.  
1
Function of external input signal  
External input signal not used  
No.6 No.7  
OFF OFF  
During emergency stop, only ON/OFF of the central  
controller and local remote controller's operation  
will be prohibit.  
Perform emergency stop with level signal  
OFF ON  
ON OFF  
2
Only the ON/OFF operation of the central controller  
and the local remote controller will be prohibit.  
Perform ON/OFF operation with level sig-  
nal  
3
4
Perform ON/OFF operation,prohibit/per-  
mit operation with pulse signal  
Set the pulse width while the contact is ON to 0.5  
to 1.0 second.  
ON  
ON  
(2) Level signal and pulse signal  
Level signal  
1
2
Pulse signal  
(3) Specification of external input interface  
ON/OFF , prohibit/premit  
pulse signal  
Emergency stop/normal  
CN2 Lead wire  
ON/OFF level signal  
level signal  
No.5  
No.6  
Orange  
Yellow  
Emergency stop/normal input  
Not used  
ON/OFF input  
Not used  
ON input  
OFF input  
Local remote controller  
prohibit input  
No.7  
Blue  
Not used  
Not used  
Not used  
Local remote controller  
permit input  
No.8  
No.9  
Gray  
Red  
Not used  
Common(DC12V or DC24V)  
(A) Level signal  
When the level signal is selected, the operation (only ON/OFF operation) for the central controller and the  
local remote controller are prohibited (except during normal operation).  
1
2
When the emergency stop/normal operation signal is selected, the status will be changed from normal oper-  
ation to emergency stop when the external input signal contact turns OFF to ON, and will be changed from  
emergency stop to normal operation when external input signal contact turns ON to OFF.  
When ON/OFF input signal is selected, the status will be changed from OFF to ON when the external input  
signal contact turns OFF to ON, and will be changed from ON to OFF when the external input signal contact  
turns ON to OFF.  
3
-38-  
(B) Pulse signal  
1
2
Even if the ON signal is input during ON, the status will remain at the ON status.  
When the local remote controller is prohibited, the ON/OFF operation, operation mode selection and  
temperature setting from the local remote controller is prohibited.  
3
Set the pulse width (contact ON time) to 0.5 to 1.0 second.  
7-2 External output function  
(1)The function of external output  
The "ON" signal is output when one or more air conditioner are in the ON operation.  
The "Malfunction" signal is output when one or more air conditioner malfunctions.  
(2)Specification of external output interface  
CN2  
No.1  
No.2  
No.3  
Lead wire  
Green  
Description of each terminal  
Common (0V)  
Black  
ON/OFF  
Brown  
Malfunction/Normal  
1 "ON" signal and "Malfunction" signal will both be output.  
-39-  
Appendix 1 : Initial setting (abridged)  
Initial setting list  
Power on  
Displaying for a maximum of 7 minutes.  
* User operation  
MENU  
WED 15:29  
1 OPERATION MONITOR  
2 OPERATION SETTING  
3 SCHEDULE SETTING  
4 MALFUNCTION  
There is group  
information.  
INITIAL SETTING  
MONITOR  
5 CURRENT TIME  
PLEASE WAIT  
SETTING  
Group information  
modification and  
settings modification  
Continously press  
and  
There is no group  
information.  
(2 seconds or longer)  
MENU  
MENU  
WED 15:29  
1 GROUP SETTING  
1
2
3
4
ADDRESS SETTING  
FUNCTION SELECT  
IP ADDRESS SETTING  
GROUP SETTING  
2 INTERLOCKED  
SETTING  
3 REFRIGIERANT  
MONITOR  
Setting end  
4 MALFUNCTUON  
MONITOR  
5 USER SETTING  
PLEASE SET  
INITIAL SETTING  
ENTER  
MENU  
WED 15:29  
6
7
8
ADDRESS SETTING  
FUNCTION SETTING  
IP ADDRESS SETTING  
BACK  
SCREEN  
1
8
VER.  
.
BACK  
Setting items  
Menu items screen  
Group configuration setting  
This performs the same group setting.  
GROUP SETTING  
G01  
ADDRESS  
UNIT  
GROUP  
SELECT  
: Select the group number.  
: Move the cursor to address display position.  
: Set the address.  
Numeric keypayed  
REMOTE CONTROLLER  
SYSTEM CONTROLLER  
indoor unit, local remote controller  
slave system controller  
GROUP NAME SET  
GROUP NAME SET  
BACK  
SCREEN  
ENTER  
GROUP NAME  
G01  
: Move the cursor to the desired character.  
M
ENTER  
: Select the charactor.  
: Delete the charactor.  
DEL.  
-
1 2 3 4 5 6 7 8 9 0  
A B C D E F G H I J K L M  
N OP Q R S T U V  
W
X
Y
Z
Group name display area  
M
MR  
-40-  
Interlocked setting  
INTERLOCKED SETTING  
Registration of interlocked operation of ventilation unit with single or  
INTERLOCKED  
UNIT ADDRESS  
multiple indoor unit is performed.  
005  
GROUP  
SELECT  
: Select the address number of the interlocked  
OA processor unit or LOSSNAY.  
UNIT ADDRESS  
: Move the cursor to address display position.  
: Set the address of the indoor unit.  
Numeric keypayed  
User setting  
Select the display method and timer settings.  
: Select the items.  
USER SETTING  
1
OPERATION MONITOR  
GROUP NO. /NAME  
/UNIT ADDRESS  
2
SCHEDULE DATA  
SET- BACK/SET TEMP  
/ NONE  
3
4
FILTER SIGN  
NONE/INDICATE  
GROUP NO. DISPLAY  
NONE/INDICATE  
5
6
2001-1-1/1-1-2001  
ROOM TEMPERATURE  
NONE/INDICATE  
TEMP. UNIT ˚C / ˚F  
7
Refrigerant monitor  
REFRIGERANT MONITOR  
The unit address are displayed for each refrigerant system.  
O U T D O O R A D D R E S S  
5 1  
5 2  
GROUP  
SELECT  
: Change the displayed refrigerant system.  
B C / O S  
U N I T  
A D D R E S S  
A D D R E S S  
0 1  
0 8  
1 5  
0 2  
0 9  
1 6  
0 3  
1 0  
0 4  
1 1  
0 5  
1 2  
0 6  
1 3  
0 7  
1 4  
Malfunction log  
The function allows monitoring of a log of the last 64 malfunction.  
MALFUNCTION LOG  
PAGE 01/01  
GROUP  
18-04-2002  
19:01  
: Changing pages.  
SELECT  
001-6607 (DETECT 000)  
16-04-2002  
12:45  
014-6602 (DETECT 014)  
12-04-2002  
03:23  
003-6607 (DETECT 000)  
15-04-2002  
09:12  
112-6607 (DETECT 012)  
01-04-2002  
23:56  
001-6607 (DETECT 000)  
DEL.  
: Clear the malfunction log.  
M-NET address setting  
M-NET ADDRESS  
Displays, or sets, the controller M-NET address.  
Numeric keypayed : Set the controller address.  
M-NET ADDRESS: 000  
(000,201 250)  
*Initial value is 000.  
Function setting  
FUNCTION SETTING  
Sets the function of the controller.  
Numeric keypayed : Set ON/OFF  
1
2
3
4
5
6
7
8
ON  
: Active  
: Move the cursor.  
OFF  
When No.3 is set to ON, the KA address input field is displayed.  
Numeric keypayed : Set the address of the K transmission conveter.  
IP address setting  
IP ADDRESS SETTING  
Sets the LAN IP address.  
*Setting is unnecessary when a LAN is used.  
IP ADDRESS :  
192.168.001.001  
: Move the cursor to the address setting position.  
: Set the address (0 255)  
MASK ADDRESS :  
255.255.255.000  
Numeric keypayed  
-41-  
Appendix 2 : User operation (abridged)  
Shows the operation panel, screen, etc. for user operation.  
Overall status lamp  
Collective operation switch  
ON  
OFF  
During operation  
All group are stopping  
BLINKINGMalfunction  
ON/OFF  
TEST RUN  
ON/OFF MODE  
FAN SPEED  
GROUP  
1
4
7
2
3
SELECT  
AIR  
DIRECTION  
6
BACK  
SCREEN  
5
CLOCK/  
TEMP.  
PATTERN  
8
VENTILATION  
INS.  
9
REMOTE  
TIMER  
MODE  
PROHIBITION  
RESET  
DEL.  
CENTRAL CONTROLLER  
G-50A  
ENTER  
0
3
User operation menu screen  
MENU  
WED 15:29  
1 OPERATION MONITOR  
Initial setting  
menu  
2 OPERATION SETTING  
3 SCHEDULE SETTING  
Continously press  
and  
* To initial setting  
( 2 seconds or longer )  
4 MALFUNCTION  
MONITOR  
5 CURRENT TIME  
SETTING  
2
BACK  
SCREEN  
Operation setting screen  
*The following settings are possible using the  
Operation Panel switches  
Start/Stop, mode, set temperature, etc.  
Local remote control operation prohibition setting  
Function area  
MON. : MONITOR  
PROH. : PROHIBIT  
COL. : COLLECTIVE  
M.  
MR.  
: MEMORY  
: MEMORY READ  
BACK  
SCREEN  
1
BACK  
SCREEN  
Reverse : ON  
Normal : OFF  
Blinking : Malfunction during unit off  
Blinking and Reverse : Malfunction during unit is on  
Blinking "MON."  
BACK  
Operation monitor screen  
SCREEN  
+
<Unit address display>  
GROUP  
SELECT  
: Change the display group  
: Turn all the units in that group ON or OFF  
ON/OFF  
1
<Group number display, Group name display>  
: Move the " " symbol.  
ON/OFF  
: Set the displayed group unit in indicated by the " " symbol  
to the ON/OFF mode.  
1
<Group number display>  
-42-  
Weekly schedule setting screen  
GROUP  
SELECT  
: Change the display group.  
: Move the cursor to the pattern position.  
CLOCK / PATTERN  
: Select P1 to P4 or ( - )  
5
8
/
ENTER  
: Complete the setting.  
The cursor will move to the next setting position.  
* Repeat assign the schedule pattern to each day (and each group)  
NOTE :  
When the No.4 function select is set ON, P4 connot be set.  
BACK  
SCREEN  
* P1 to P3 of a composite pattern composed of P1 to P3 and P4.  
P1 P4  
BACK  
SCREEN  
ENTER  
+
: Move the cursor position.  
CLOCK / PATTERN  
: Select the ON(PROHIBITION) time or OFF  
(PERMISSION) time.  
5
8
/
(Time is changed by 10 minutes unit.)  
ENTER  
: Complete the setting. The cursor moves to the next setting p  
* Repeat set schedules.  
* Three types (P1-P3) of daily ON/OFF pattern and one type (P4) of prohibition/  
permission pattern are available respectively, each of which can be set for each  
group.  
Schedule parttern setting screen  
Malfunction monitor screen  
4
BACK  
SCREEN  
: Change the pages  
or  
or  
= page + 1  
= page - 1  
RESET  
DEL.  
: Reset all malfunctions  
The unit address  
where the malfunction occurred  
The unit address  
where the malfunction was detected  
Error code  
NOTE :  
When there is no malfunction taking place,[NO ERROR] lights up instead of [ERROR CODE].  
When operation of the G-50A is prohibited,reset operation is invalid.  
5
BACK  
SCREEN  
Current time setting screen  
: Move the cursor position  
: Set the number or day  
5
8
* Set the date day, month, year and time.  
ENTER  
: Press this switch, where all setting have been completed.  
22-09-2002 SUN 00:00  
* The clock count will start with the second reset to 0.  
-43-  
This product is designed and intended for use in the residential,  
commercial and light -industrial environment.  
The product at hand is  
based on the following  
EU regulations:  
Low Voltage Directive 73/23/EEC  
Electromagnetic Compatibility Directive 89/  
336/EEC  
NOTE:  
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to  
Part 15 of the FCC Rules. These limits are designed to provide resonable protection against harmful  
interference in a residential installation. This equipment generates, uses and can radiate radio frequency  
energy and, if not installed and used in accordance with the instructions, may cause harmful interference to  
radio communications.  
However, there is no quarantee that interference will not occur in a particular installation.  
If this equipment does cause harmful interference to radio or television reception, which can be determined  
by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more  
of the following measures:  
- Reorient or relocate the receiving antenna.  
- Increase the separation between the equipment and receiver.  
- Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.  
- Consult the dealer or an experienced radio / TV technician for help.  
MITSUBISHI ELECTRIC CORPORATION  
HEAD OFFICE: MITSUBISHI DENKI BLDG. , 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN  
WT03945X01  
Printed in Japan  
Recycled Paper  

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