Mitsubishi Electric MFZ-KA-VA Technical Data Manual page 31

PCA-RP50GA PCA-RP60GA
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)
SWITCH (MODEL SELECTION) WSee Table 1.
SW1
SWITCH (CAPACITY CODE) WSee Table 2.
SW2
SWE SWITCH(EMERGENCY OPERATION)
X1 RELAY(DRAIN PUMP)
X4 RELAY(FAN MOTOR)
BCR FAN CONTROL ELEMENT
LED1 POWER SUPPLY(I.B)
LED2 POWER SUPPLY(R.B)
LED3 TRANSMISSION(INDOOR-OUTDOOR)
C CAPACITOR(FAN MOTOR)
P.B
MF
1 2 3 (OPTION)
C
DP
I.B
D.U.M POWER
1 3 5 1 3
FAN
CNP CNDK
( WHT )
(BLU) (RED)
X4
BCR X1
X4 X1
LED3 LED2 LED1
SWE SW2 SW1
ON
OFF
Refer to tables 1
and 2 for service PCB.
WWhen installing optional
drain-up machine disconnect
the CN31 jumper connector
and replace it with the
CN31
drain sensor (DS).
DRAIN SENSOR
1 2 3
( WHT )
When installing drain-up
machine (Optional part).
DS
Table 1 Table 2
SW1
MODELS Service board MODELS
1 2 3 4 5
PCA-RP50GA
PCA-RP.GA ON
OFF
PCA-RP60GA
PCA-RP71GA
PCA-RP71GA
SYMBOL
MF FAN MOTOR
MV
VANE MOTOR
DP
DRAIN-UP MACHINE (OPTION)
DS DRAIN SENSOR (OPTION)
TERMINAL BLOCK (HEATER) WPCH-P.GAH
TB2
models only or option for PCA RP.GA models.
TB4
TERMINAL BLOCK(INDOOR/OUTDOOR CONNECTING LINE)
TB5,TB6
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)
TH5 COND./EVA.TEMP.THERMISTOR
(0;/15k', 25;/5.4k' DETECT)
R.B WIRED REMOTE CONTROLLER BOARD
CNDK CN2S
(RED) (WHT)
1 1
2 2
DC13.1V
3
POWER
1 3 1 3 1 2 1 3
CND
INDOOR/OUTDOOR
(ORN) POWER
COMMUNICATION
CN2D(WHT)
CN3C(BLU)
CN41 CN2L
ZNR
CN51 CN32
D.SENSOR INTAKE LIQUID PIPE REMOCON
CN31 CN20 CN21 CN29 CN22
( WHT ) ( RED ) ( WHT ) ( BLK ) ( BLU )
1 2 3 1 2 1 2 1 2
1 2 1 2
TH2
TH1 TH5
[Servicing]
Fasten terminal of the terminal board "TB4"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:
SW2
1. Since the outdoor side electric wiring may change be sure to
Service board
check the outdoor unit electric wiring for servicing.
1 2 3 4 5
2. Indoor and outdoor connecting wires are made with polarities, make
ON
wiring matching terminal numbers (S1, S2, S3).
OFF
3. Make sure that the main power supply of the booster heater is
1 2 3 4 5
ON independent.
OFF
4. Symbols used in wiring diagram above are,
1 2 3 4 5
ON
OFF
NAME SYMBOL
W.B
RU
BZ
LED1
LED2
SW1
SW2
HEATER
FS1,2
H1
26H
88H
50~71 TYPE
VANE
6
6 6
CN6V
( GRN )
MV
100~140 TYPE
5
WIRELESS
CN90
9
( WHT )
CNB
BZ
RU
1 2
LED1 LED2 SW2 SW1
RECEIVER
2
1 TRANSMISSION WIRES DC12V
TB5
R.B
: Connector, : Terminal (block).
31
NAME
WIRELESS REMOTE CONTROLLER BOARD(OPTION)
RECEIVING UNIT
BUZZER
LED(RUN INDICATOR)
LED(HOT ADJUST)
SWITCH(HEATING ON/OFF)
SWITCH(COOLING ON/OFF)
THERMAL FUSE(98;10A:50GAH/117;16A:100GAH
110;16A:60,71,125,140GAH)
HEATER
HEATER THERMAL SWITCH
HEATER CONTACTOR
TB4
YLW S1
S2
ORN
TO OUTDOOR UNIT
S3
ORN
BRN
6
MV
5
MV
Please set the voltage using the remote
controller.
For the setting method, please refer to
the indoor unit Installation Manual.
W.B
1 2
TB6