Wiring Diagram; Indoor Unit - Mitsubishi Electric PFFY-P20VKM-E Service Manual

7

WIRING DIAGRAM

PFFY-P20VKM-E
PFFY-P25VKM-E
PFFY-P32VKM-E
PFFY-P40VKM-E
[LEGEND]
SYMBOL NAME
I. B
INDOOR CONTROLLER BOARD
CN32 CONNECTOR REMOTE SWITCH
CN51 CENTRALLY CONTROL
CN52 REMOTE INDICATION
SWITCH CAPACITY CODE
SW2
MODE SELECTION
SW3
SW4 MODEL SELECTOR
ZNR VARISTOR
FUSE FUSE (T6.3AL250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (I.B)
NOTES
1.At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.
2.In case of connecting MA-Remote controller, please connect MA remote controller cable
in an accessory to the connecter
3.In case of using M-NET, please connect to TB5. (Transmission line is non-polar.)
4.Symbol [S] of TB5 is the shield wire connection.
5.Symbols used in wiring diagram above are,
6.The setting of the SW2 dip switches differs in the capacity for the detail, refer to the fig:
LED on indoor board for service
MARK MEANING
LED1 Main power supply
Power supply for
LED2
MA-Remote controller
RED
MF2
BLK
WHT
BRN
BLU
RED
MF1
BLK
WHT
BRN
BLK
BLU
TB2
RED
L
POWER SUPPLY
220-240V
N
BLU
50Hz
GRN/YLW
TO OUTDOOR UNIT
M1
BC CONTROLLER
REMOTE CONTROLLER M2
DC24-30V
S(SHIELD)
SYMBOL NAME
MF1 FAN MOTOR (UPPER)
MF2 FAN MOTOR (LOWER)
MV1
VANE MOTOR
MV2
DAMPER MOTOR
LS DAMPER LIMIT SWITCH (CLOSE)
LEV LINEAR EXPANSION VALVE
TB2 TERMINAL POWER SUPPLY
BLOCK
TB5 TRANSMISSION
TH21 ROOM TEMP. DETECTION
THERMISTOR
(0:/15k", 25:/5.4k")
TH22 PIPE TEMP. DETECTION/LIQUID
(0:/15k", 25:/5.4k")
1 2 . (Remote controller wire is non-polar.)
FUNCTION
Main power supply (Indoor unit:220-240V)
power on Iamp is Iit
Power supply for MA-remote controller
on Iamp is lit
LEV
6
I.B
3 2 1 6 5 4 3 2 1
LED1
CN31 CN60
(WHT) (WHT)
DC311
FUSE
~339V
ZNR
CNMF1
(WHT)
LED2
CN2M CN3A
CND (BLU) (BLU)
CNMF2
(BLK)
(WHT)
1 2 1 2 3
BLU
BLU
TB5
ORN
TO MA-REMOTE
1
ORN
CONTROLLER
2
DC8.7-13V
SYMBOL
TH23
A. B
ADDRESS BOARD
SW1
SWITCH
SW11
SW12
SW14
SWC
: terminal block, : connector.
<fig:
MODELS
P20
P25
P32
P40
TH21 TH23 TH22 LS
4 3 2 1 3 2 1
CN44 CN36
(WHT)
(BLK)
2 1
CN52
CN51
CN20 (GRN)
(WHT)
(WHT)
SWE
CN81
(RED)
CN32
(WHT)
CN42
4 3 2 1
(RED)
CN6V2 CN6V1
(BLU) (GRN)
1 2 3 4 5 6 1 2 3 4 5 6
1 2 3 4 5 6 1 2 3 4 5 6
MV2 MV1
13
NAME
PIPE TEMP. DETECTION/GAS
(0:/15k", 25:/5.4k")
MODE SELECTION
ADDRESS SETTING 1ST DIGIT
ADDRESS SETTING 2ND DIGIT
CONNECTION NO.
AIR OUTLET SELECTION
w
1.
w
1>
SW2
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
ON
OFF
1 2 3 4 5 6
8
4
A.B
8 7 6 5 4 3 2 1
CN82
(RED)
4 3 2 1
CN43
(RED)
S e e f i g : w 1