Mitsubishi Electric PKA-RP1.6GAL Service Technical Manual page 9

PCA-RP2GA PCA-RP2.5GA PCA-RP3GA
PCA-RP4GA PCA-RP5GA
SYMBOL NAME
P.B INDOOR POWER BOARD
F1 FUSE(4A)
ZNR VARISTOR
INDOOR CONTROLLER BOARD
I.B
CN2L CONNECTOR(LOSSNAY)
CN32 CONNECTOR(REMOTE SWITCH)
CN41 CONNECTOR(HA TERMINAL-A)
SW1 JUMPER WIRE(MODEL SELECTION)
SW2 JUMPER WIRE(CAPACITY CORD)
SWE SWITCH(EMERGENCY OPERATION)
X1 RELAY(DRAIN PUMP)
X4 RELAY(FAN MOTOR)
FC FAN PHASE CONTROL
LED1 POWER SUPPLY(I.B)
LED2 POWER SUPPLY(R.B)
LED3 TRANSMISSION(INDOOR-OUTDOOR)
C CAPACITOR(FAN MOTOR)
MF FAN MOTOR
INDOOR UNIT
MF
1 2 3
C
I.B
D.U.M
1 3 5
FAN
CNP
(WHT)
(BLU)
X4
FC
X4
SWE SW2 SW1
ON
OFF
When installing drain-up
machine(Optional part).
CN31 DRAIN SENSOR
1 2 3
(WHT)
WWhen installing optional
drain-up machine,disconnect
the CN31 jumper connector
and replace it with the
drain sensor(DS).
DS
MODELS SW1
Manufacture
2GA
J21
<For manufacture>
2.5GA
J21
J11 J12 J13 J14 J15
3GA
J21
4GA
J21
<For service board>
1 2 3 4 5
5GA ON
OFF
J21
6GA
J21
PCA-RP6GA
SYMBOL
MV VANE MOTOR
DP DRAIN-UP MACHINE(OPTION)
DS DRAIN SENSOR(OPTION)
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)
TH5 COND./EVA.TEMP.THERMISTOR
(0:/15k",25:/5.4k" DETECT)
R.B REMOTE CONTROLLER BOARD
CN2 CONNECTOR(SCHEDULE TIMER)
TB6 TERMINAL BLOCK(REMOTE CONTROLLER
TRANSMISSION LINE)
TB2 TERMINAL BLOCK(HEATER)
(OPTION)
DP
POWER
1 3
1 3 5
CN03
POWER
(RED)
CN2D(WHT)
CN41
X1
CN25
X1
LED3 LED2 LED1
D.SENSOR INTAKE LIQUID PIPE
CN31 CN20 CN21 CN29
(WHT) (RED) (WHT) (BLK)
1 2 3 1 2 1 2
1 2
TH1 TH2
[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.
SW2
[Self-diagnosis]
Service board 1.For details on how to operate self-diagnosis with the wireless
remote control,refer to the technical manuals etc.
1 2 3 4
ON
NOTES:
OFF
J22J23 J24 1.Since the outdoor side electric wiring may change be sure to
check the outdoor unit electric wiring for servicing.
1 2 3 4
2.Indoor and outdoor connecting wires are made with polarities,make
ON
OFF wiring matching terminal numbers(S1,S2,S3).
J22 J23 J24
3.Make sure that the main power supply of the booster heater is
1 2 3 4
independent.
ON
4.Symbols used in wiring diagram above are,
OFF
J22 J23 J24
1 2 3 4
[Emergency operation procedure]
ON
OFF 1.When the wired remote control or the indoor unit microcomputer has failed,but all other
J22 J23 J24
components work properly, if you set the switch(SWE) on the indoor control panel ON,the indoor
1 2 3 4 unit will begin Emergency Operation.
ON
When Emergency Operation is activated, the indoor unit operates as follows:
OFF
(1)Indoor fan is running at high speed.
J22 J23 J24
(2)Drain-up machine(optional) is working.
1 2 3 4
ON
OFF
J22 J23 J24
NAME SYMBOL
W.B WIRELESS REMOTE CONTROLLER BOARD(OPTION)
RU RECEIVING UNIT
BZ BUZZER
LED(RUN INDICATOR)
LED1
LED2 LED(HOT ADJUST)
SW1 SWITCH(HEATING ON/OFF)
SW2 SWITCH(COOLING ON/OFF)
CN2S(WHT)
F1
2
DC14V
1
ZNR
3
2
1
CONT.BOARD OUTDOOR
CN02(WHT) CN01(BLU)
VANE
1 2
CN6V
6 6
MV
(WHT)
CN2L
WIRELESS
CN90
9
CN32
(WHT)
REMOCON
CN22
(BLU)
RU
1 2 1 2
RECEIVER LED1
2
1 TRANSMISSION WIRES DC12V
1 2
TB5
TH5
:Connector, : Terminal (block).
9
NAME
P.B
TB4
YLW S1
}
1
TO
ORN S2
2
BRN S3 OUTDOOR
3
UNIT
P2,P3 TYPE
6 6
MV
P4~P6 TYPE
5 5
MV
CNB
BZ
LED2 SW2 SW1
W.B
R.B
CN2
1 2
TB6
Please set the voltage using
the remote controller.
For the setting method,
please refer to the indoor
unit Installation Manual.