Wiring Diagram - Mitsubishi Electric Mr.SLIM PC-2GAKD Technical & Service Manual

5

WIRING DIAGRAM

PC-2GAKD PC-2.5GAKD PC-3GAKD PC-4GAKD PC-5GAKD PC-6GAKD
[LEGEND]
SYMBOL NAME
P.B
INDOOR POWER BOARD
I.B
INDOOR CONTROLLER BOARD
FUSE FUSE (T6.3AL250V)
ZNR VARISTOR
CN2L CONNECTOR<LOSSNAY>
CN32 CONNECTOR<REMOTE SWITCH>
CN41 CONNECTOR<HA TERMINAL-A>
CN51 CONNECTOR<CENTRALLY CONTROL>
SW1 SWITCH <MODEL SELECTION>wSee Table 1.
SW2 SWITCH <CAPACITY CODE>wSee Table 2.
SW5 SWITCH<SYSTEM SELECTION>wSee Table 3.
SW6 SWITCH<EMERGENCY OPERATION>
CONNECTOR<EMERGENCY OPERATION>
SWE
X1 RELAY<DRAIN PUMP>
X4 RELAY<FAN MOTOR>
BCR FAN CONTROL ELEMENT
LED1 POWER SUPPLY<I.B>
LED2 POWER SUPPLY<R.B>
MF
1 3 5
Refer to tables 1, 2, 3 .
1 3 5
BCR
X4
SW1 SW2 SW5
ON
OFF
SWE
When installing drain-up
machine (Optional part)
w
When installing optional
WHT
drain-up machine, disconnect
( D.SENSOR )
the CN31 jumper connector
CN31
and replace it with the
1 2 3
drain sensor (DS).
DS
[Servicing]
Fasten terminal of the terminal board "TB4" that equips lock system.
To remove the fastened terminal, pull it while pressing the protruding
portion (locking lever) of the terminal. The fastened terminal protruding
portion should face upward.
NOTES:
1. Since the outdoor side electric wiring may change, be sure to
check the outdoor unit electric wiring diagram for servicing.
2. Indoor and outdoor connecting wires have poIarities, make
sure to match terminal numbers (1, 2, 3) for correct wirings.
3. SymboIs used in wiring diagram above are,
: Connector,
[Self-diagnosis]
1. For details on how to operate self-diagnosis with the wireless
remote control, refer to the technical manuals etc.
2. For the wired remote control : When you quickly press twice the
CHECK switch on the remote control, the unit begins self-diagnosis,
and Check Codes generated in the past appear on the display.
For Check Codes and Symptoms refer to the table.
Check code
P1 Abnormality of room temperature thermistor(TH1)
Abnormality of pipe temperature thermistor / Liquid(TH2)
P2
P4 Abnormality of drain sensor(DS)
P5 Malfunction of drain-up machine
P6 Freezing / overheating protection is working.
Abnormality in outdoor unit
P8
Refer to outdoor unit wiring diagram.
Abnormality of the signal transmission between remote
E0–E5
controller and indoor unit
Abnormality of indoor controller board
Fb
–––– No trouble generated in the past
No corresponding unit
FFFF
SYMBOL
C CAPACITOR<FAN MOTOR>
MF FAN MOTOR
MV VANE MOTOR
DP DRAIN-UP MACHINE (OPTIONAL)
DS
DRAIN SENSOR(OPTIONAL)
TB2
TERMINAL BLOCK (POWER SUPPLY)
TB4 TERMINAL BLOCK<INDOOR/OUTDOOR
CONNECTING LINE>
TB5 TERMINAL BLOCK<REMOTE CONTROLLER
TRANSMISSION LINE >
TH1 ROOM TEMP.THERMISTOR
<0:/15k", 25:/5.4k" DETECT>
TH2 PIPE TEMP.THERMISTOR/LIQUID
<0:/15k", 25:/5.4k" DETECT>
(OPTION)
DP
WHT RED BLU
1 3 1 3
(FAN) (D.HEATER) (D.U.M)
FAN CNC CNP
FUSE
X1
X4
ZNR
SW6
X1
1 2
ON
OFF
(INTAKE)
WHT RED GRN WHT
( D.SENSOR ) (PUMP) (VANE) ( WIRELESS )
CN31 CN27 CN6V CN90
1 2 3 1 2
6
MV
: Terminal (block).
Symptom
NAME SYMBOL
W.B
WIRELESS REMOTE CONTROLLER BOARD<OPTION>
RU RECEIVING UNIT
BZ BUZZER
LED1 LED<RUN INDICATOR >
LED2 LED<HOT ADJUST>
SW1
SWITCH<HEATING ON/OFF>
SW2
SWITCH<COOLING ON/OFF>
R.B
WIRED REMOTE CONTROLLER BOARD
TB6 TERMINAL BLOCK<REMOTE CONTROLLER
TRANSMISSION LINE >
Please set the voltage
using the remote controller.
For the setting method,
please refer to the indoor
unit Installation Manual
P.B
CNSK
1 2 3
(RED)
DC13.1V
I.B
ORN RED
1 3 1 3
CN2S
(POWER) (POWER
1 2
(WHT)
CND BOARD)
CNDK
WHT
BLK
1
(POWER
WHT
2
BOARD)
CN2D
CN41 CN2L
LED1
LED2
CN51 CN32
BLK
RED (INDOOR/OUTDOOR
COMUNICATION)
WHT BLU
CN30
CN20
(PIPE) (REMOCON)
1 2 1 2 3
CN21 CN22
1 2 1 2
TB5
1
TH1 TH2
2 TRANSMISSION WIRES DC12V
Table 1 Table 3
SW1
1 2 3 4 5 1 2 3 4 5 6 7 8
ON
OFF
Table 2
MODELS SW2
1 2 3 4 5
PC-2GAKD
1 2 3 4 5
PC-2.5GAKD
1 2 3 4 5
PC-3GAKD
[Emergency operation procedure]
1.When the indoor unit microcomputer has failed, but all other components
work properly, if you set the switch(SWE,SW6) on the indoor control
board, the indoor unit will begin Emergency Operation.
2.When you activate emergency operation of the cooling, you have to set
the switch(SWE) and switch(SW6) on indoor controller.
SWE:ON
SW6-1:ON ·Emergency operation of cooling mode
3.Before you activate emergency operation, check the following points:
(1) Emergency operation cannot be activated when:
· The outdoor unit malfunctions.
(2) Emergency operation becomes continuous only by switching the power
source on / off. ON / OFF on the remote control or temperature control
etc. does not function.
(3) Emergency cooling should be limited to 10 hours maximum
(The indoor unit heat exchanger may freeze).
(4) After emergency operation has been deactivated, set the switches etc.
to their original positions.
(5) Movement of the vanes does not work in emergency operation, therefore
you have to slowly set them manually to the appropriate position.
21
NAME
TB2
L
POWER SUPPLY
N
~(1 PHASE)
220-240V 50Hz
GRN/YLW
220V 60Hz
TB4
1
2 TO OUTDOOR UNIT
3
9
R.B
TB6
2 1
BZ
RU
RECEIVER
LED1
SW5
ON
OFF
MODELS
SW2
1 2 3 4 5
ON ON
PC-4GAKD
OFF OFF
1 2 3 4 5
ON PC-5GAKD ON
OFF OFF
1 2 3 4 5
ON PC-6GAKD ON
OFF OFF
·Indoor fan is running at high speed.
·Drain-up machine(optional) is working.
· The indoor fan malfunctions.
W.B
(OPTION)
CNB
LED2 SW2 SW1