Wiring Diagram - Mitsubishi Electric PCA-RP71HAQ Service Manual

7

WIRING DIAGRAM

PCA-RP71HAQ
[LEGEND]
SYMBOL NAME
P. B INDOOR POWER BOARD
I. B INDOOR CONTROLLER BOARD
FUSE FUSE (T6.3AL250V)
CN2L CONNECTOR (LOSSNAY)
CN32 CONNECTOR (REMOTE SWITCH)
CN41 CONNECTOR (HA TERMINAL-A)
CN51 CONNECTOR (CENTRALLY CONTROLL)
LED1 POWER SUPPLY (I. B)
LED2 POWER SUPPLY (R. B)
LED3 TRANSMISSION (INDOOR-OUTDOOR)
X1 RELAY (DEW PREVENTION HEATER)
X4 RELAY (FAN MOTOR)
X5 RELAY (FAN MOTOR)
X6 RELAY (FAN MOTOR)
SW1 SWITCH (MODEL SELECTION) See Table 1.
SW2 SWITCH (CAPACITY CODE) See Table 2.
SWE SWITCH (EMERGENCY OPERATION)
MF1
M
1~
6 5 4 3 2 1
ORN
6 5 4 3 2 1
BRN
C1
C2
RED
GRY
I.B
FAN
WHT )
(
1 3 5 7
X6 X5 X4
SWE SW2 SW1
ON
OFF
Refer to tables 1
and 2 for service PCB.
Table 1
SW1
Service board
1 2 3 4 5
ON
OFF
NOTES:
1. Since the outdoor side electric wiring may change be sure to check the outdoor unit electric wiring for servicing.
2. Indoor and outdoor connecting wires are made with polarities, make wiring matching terminal numbers (S1,S2,S3).
3. Symbols used in wiring diagram above are,
1 When work to supply power separately to Indoor and Outdoor unit was applied, refer to Fig1.
2 For power supply system of this unit, refer to the caution label located near this diagram.
PCA-RP125HAQ
SYMBOL
MF1, MF2 FAN MOTOR
C1, C2 CAPACITOR (FAN MOTOR
H2 DEW PREVENTION HEATER
TB2 TERMINAL BLOCK (INDOOR UNIT
POWER (OPTION PARTS))
TB4 TERMINAL BLOCK (INDOOR/OUTDOOR
CONNECTING LINE)
TB5,TB6 TERMINAL BLOCK (REMOTE CONTROLLER
TRANSMISSION LINE)
TH1 ROOM TEMP.THERMISTOR
(0°C/15kΩ, 25°C/5.4kΩ DETECT
TH2 PIPE TEMP.THERMISTOR/LIQUID
(0°C/15kΩ, 25°C/5.4kΩ DETECT
TH5 COND./ EVA.TEMP.THERMISTOR
(0°C/15kΩ, 25°C/5.4kΩ DETECT
R. B WIRED REMOTE CONTROLLER BOARD
For PCA-RP125HAQ
MF2
M
1~
P.B
CNSK
( RED)
1
H2
DC13.1V
3
D.HEATER POWER POWER
CNC CNDK 1 3 CND
3 1
( RED) ( RED) ( ORN)
X1
LED3 LED2 LED1
Table 2
SW2
MODELS Service board MODELS
1 2 3 4 5
PCA-RP71HAQ ON PCA-RP125HAQ
OFF
■
The black square ( ) indicates a switch position.
: Connector,
Check code
NAME
P1
)
P2
P6
P8
P9
E0 - E5
E6 - EF
Fb
)
U* , F*
- - - -
)
FFFF
)
CN2S
( WHT)
1
2
TB4
YLW
S1 S1
ORN
S2 S2
ORN
S3 S3
BRN
1 3
1 3 1 2
INDOOR/OUTDOOR
POWER
COMMUNICATION
CN2D ( WHT)
CN3C ( BLU)
CN41 CN2L
CN51 CN32
4 1 2 1
5 1 1 3
INTAKE LIQUID PIPE REMOCON
CN20 CN21 CN29 CN22
( RED) ( WHT) ( BLK) ( BLU)
1 2 1 2 1 2 1 2
2 2
TB5
2
1 2 1 3
1
2
t° t° t°
TH1 TH2 TH5
Service board
1 2 3 4 5
ON
OFF
: Terminal (block).
13 13
Symptom
Abnormality of room temperature thermistor
Abnormality of pipe temperature thermistor/Liquid
Freezing/overheating protection is working.
Abnormality of pipe temperature
Abnormality of pipe temperature thermistor/Cond.Eva.
Abnormality of the signal transmission between remote
controller and indoor unit
Abnormality of the signal transmission between indoor unit
and outdoor unit
Abnormality of indoor controller board
Abnormality in outdoor unit. Refer to outdoor unit wiring diagram.
No trouble generated in the past.
No corresponding unit
Please set the voltage using the
remote controller.
For the setting method, please refer to
the indoor unit Installation Manual.
TO
1 (Fig.1)
OUTDOOR
TB2
UNIT
RED
L
BLU
N
GRN/YLW
YLW
TB4
ORN
S1 S1
ORN
S2 S2
BRN
S3 S3
I.B
1 3 1 3
POWER INDOOR/OUTDOOR
CND COMMUNICATION
(ORN) CN3C
(OPTION PARTS)
(BLU)
R.B
1
TB6
TRANSMISSION WIRES DC12V
2
( TH1)
TH2)
(
( TH5)
POWER
SUPPLY
~(1PHASE)
230V 50Hz
TO
OUTDOOR
UNIT