Mitsubishi Electric Mr.SLIM PC-2GJA Technical & Service Manual page 17

6
WIRING DIAGRAM
PC-2GJA / PC-2.5GJA
1
SYMBOL NAME
C FAN MOTOR CAPACITOR
CN120<I.B> REMOTE CONTROLLER TRANS-
MISSION WIRE CONNECTOR
CN2<I.B> TIMER ADAPTOR CONNECTOR
CN2A<I.B> TRANSMISSION WIRE No.1
CONNECTOR
CN2B<I.B> TRANSMISSION WIRE No.2
CONNECTOR
CNP<I.B> DRAIN-UP MACHINE CONNECTOR
CN28<I.B> TIME SHORTENING CONNECTOR
CN50<I.B> DRAIN SENSOR CONNECTOR
CN51<I.B> MULTIPLE CONNECTOR
CN120<R.B> REMOTE CONTROLLER TRANS-
MISSION WIRE CONNECTOR
F1,2<I.B> FUSE (6.3A 250V)
CN70<I.B> WIRELESS REMOTE CONT-
ROLLER CONNECTOR
I.B INDOOR CONTROLLER BOARD
MF
C
I.B
FAN1 CNP CND
1 3 5 1 3
D.U.M POWER
F2
X4
X1
ZNR
X4 X1
SW3
ON
OFF
1 2 3
JR
CN2B CN2A
ON
TWIN-2 TWIN-1
OFF
1 2 3 4 5 6
[Emergemcy operation procedure]
(2) Turn on outdoor unit side circuit breaker, then indoor unit side circuit breaker in this order.
(3) During emergency operation, indoor fan runs at high speed but automatic vane remains stop.
(4) If vane closed, open the vane by hand slowly.
(5) Thermostat will not function.
(6) Emergency cooling should be limited to 10 hours maximum (The Indoor unit heat exchanger may freeze).
(7) If the ,microcomputer doctor detects the abnomality of the drain-up machine during cool mode. do not execute emergency operation (It causes drain overflow).
NOTES :
1. Since the indoor fan motor (MF) is connected with 220V power, using 230, 240V power will require a setting change of the dip switch (SW1<I.B>) on the indoor controller board
as shown in fig : w 1.
fig : w1
Indoor fan motor (MF) for 230, 240V.
2. Since the indoor transformer (T) is connected with 220V power, if 230, 240V power used. Change the wiring connection showing fig : W2.
fig : w2
When power supply is
3. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
4. Symbols used in wiring diagram above are.
5. Emergency operation
If remote controller or microcomputer fails but there is no other trouble,. emergency operation is possible by setting dip switch (SW3<I.B>) on the indoor controller board.
[Check items]
(1)Compressor and fan.
(2)Check the abnomality using self diagnostic function. When the result of self diagnosis indicates protective device such as freeze protection, emergency operation is not possible
unless the cause is removed.
(3)Emergency operation will be continuous operation mode due to power ON/OFF (ON/OFF with remote controller is not possible).
[Emergency operation procedure]
(1)Set the dip switch(SW3<I.B>) on the indoor controller board
/ PC-3GJA / PC-4GJSA
1 1
SYMBOL NAME
LD1<R.B> RUN INDICATOR LED
LD3<R.B> COOLING INDICATOR LED
LD4<R.B> FAN MODE INDICATOR LED
LD5<R.B> FAN HIGH INDICATOR LED
LD6<R.B> LOUVER RUN INDICATOR LED
LD7<R.B> INDICATOR MODE TEMPERATURE LED
LD8<R.B> INDICATOR MODE TIMER LED
LD9<R.B> DRY INDICATOR LED
LD10<R.B> FAN LOW INDICATOR LED
LD11<R.B> OFF TIMER INDICATOR LED
LD12<R.B> ON TIMER INDICATOR LED
LD13-24<R.B> TEMPERATURE / TIMER RE-
MAINING TIME INDICATOR LED
MF FAN MOTOR
MV VANE MOTOR
SWA<I.B> HIGH CELING TYPE SWITCH
JR<I.B> FUNCTION SELECTOR
JUMPER RESISTORS
11.8VAC
220V
230V
240V
14.7VAC
6
T
CNT
1 3 1 3 4 3 2
TRANS
F1
6 1
CN6V
VANE
5 4 3 2 1
CN50
CN21
DRAIN
CN70
PIPE
WIRELESS
CN20
INTAKE
SW1 SW2
3
2 STD
1 OP
1 2 3 4 5 6 7 8 1 2 3 4 5
SW1
240V
230V
: Connector ,
to1 2 onand 3 off for cooling.
/ PC-5GJSA
1
SYMBOL
SWC<I.B> OPTION SWITCH
SW1<I.B> FUNCTION SWITCH
SW2<I.B> UNIT SWITCH
SW3<I.B> EMERGENCY OPERATION SWITCH
SW1<R.B> ON / OFF SWITCH
SW2<R.B> OPERATION MODE SWITCH
SW3<R.B> FAN HIGH/LOW SWITCH
SW4<R.B> LOUVER ON / OFF SWITCH
SW5<R.B> INDICATOR SWITCH
SW6<R.B> TEMPERATURE / TIMER
SETTING UP SWITCH
SW7<R.B> TEMPERATURE / TIMER
SETTING DOWN SWITCH
SW8<R.B> TIMER CONTINUOUS ON / OFF SWITCH
R.B REMOTE CONTROLLER BOARD
T TRANSFOMER
TB2 POWER SUPPLY TERMINAL BLOCK
L
POWER SUPPLY
N
(1 PHASE)
AC220-240V 50Hz
GRN/YLW
AC220V 60Hz
TB2
6
MV
INDOOR UNIT
CN4T
1
TRANS
REMOTE CONTROLLER
Remote control transmissing wire 12VDC with 12 core connector
12
OUTDOOR UNIT
TB4 TO OUTDOOR UNIT
ORN 2
CONNECTING WIRES
1
YLW
DC12V
BLK
RT2
BLK
RT1
ON
OFF
1 2 3 4 5 6 7 8
240 YELLOW
230 ORANGE
220 RED
: Terminal block
/ PC-6GJSA
1 1
NAME SYMBOL
TB4 INDOOR / OUTDOOR CONNECT-
ING WIRE TERMINAL BLOCK
RT1 ROOM TEMPERATURE THERMISTOR
(0 /15k ,25 /5.4k DETECT)
RT2 INDOOR COIL THERMISTOR
(0 /15k ,25 /5.4k DETECT)
X1<I.B> DRAIN-UP MACHINE RELAY
X4<I.B> FAN MOTOR RELAY
ZNR VARISTOR
DP OPTION DRAIN-UP MACHINE
DS OPTION DRAIN SENSOR
W/B OPTION WIRELESS REMOTE
CONTROLLER BOARD
CNB(W.B) INDOOR BOARD CONNECTOR
LED1(W.B) RUN INDICATOR LED
SW2(W.B) COOL OPERATION SWITCH
RU(W.B) BEAM RECIEVE UNIT
Service Ref. 2GJA 2.5GJA
1
ON ON
SW1 OFF OFF
1 2 34 5 6 7 8
Service Ref. 4GJSA 5GJSA
1
ON ON
SW1 OFF OFF
fig:*3
1 2 34 5 6 7 8
R.B
ON
OFF
1 2 3 4 5 6 7 8
NAME
3GJA
1 1
ON
OFF
1 2 34 5 6 7 8 1 2 34 5 6 7 8
6GJSA
1 1
ON
OFF
1 2 34 5 6 7 8 1 2 34 5 6 7 8
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