Wiring Diagram - Mitsubishi Electric PKFY-P12NHMU-E Technical & Service Manual

4

WIRING DIAGRAM

PKFY-P12, 15, 18NHMU-E
MF
MS
3 ~
1 3 6 1
FAN
CNMF
(WHT)
M-NET
CN2M(BLU)
1
NAME
SYMBOL
INDOOR CONTROLLER BOARD
I.B
CN24 CONNECTOR EXTERNAL HEATER
CN32 REMOTE SWITCH
CN51 CENTRALLY CONTROL
CN52 REMOTE INDICATION
BZ BUZZER
DSA SURGE ABSORBER
FUSE FUSE (T3.15AL 250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (I.B)
SW2 SWITCH CAPACITY CODE
SW3 MODE SELECTION
SW4 MODEL SELECTOR
SWE DRAIN PUMP (TEST MODE)
X1 AUX.RELAY DRAIN PUMP (OPTION)
MOV 01.02 VARISTOR
LEV LINEAR EXPANSION VALVE
MF FAN MOTOR
MV
VANE MOTOR
TB2 TERMINAL POWER SUPPLY
TB5 TRANSMISSION
BLOCK
TB15 MA-REMOTE CONTROLLER
< 2>
TB2
RED
FUSE BREAKER
L1
PULL
( 16A ) ( 16A )
BLU
BOX
L2
GRN/YLW
GR
TO NEXT
INDOOR
UNIT
MV
M
CND
3
(BLK)
1 5
FUSE
DSA
CNP
(BLU)
3
5 1 6
VANE
MOV2
CN151
MOV1
X1
(WHT)
U
LED1
BZ
U
SWE
OFF ON
DC311 ~ 339V
RECTIFICATION
8
MA-REMOCON
SW2 SW4 SW3
ON
OFF
2
1 2 3 4 5 6 1 2 3 4 1 2 3 4 5 6 7 8
See fig: 1
LED on indoor board for service
Mark Meaning
Main power supply
LED1
Power supply for
LED2
MA-Remote controller
NOTES:
1.At servicing for outdoor unit,always follow the wiring diagram of outdoor unit.
2.In case of using MA-Remote controller, please connect to TB15.
(Remote controller wire is non-polar.)
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: 1.
< 2>Use copper supply wires.
SYMBOL
TH21 THERMISTOR ROOM TEMP. DETECTION
( 32°F/15k ,77°F /5.4kΩ)
TH22 PIPE TEMP. DETECTION / LIQUID
( 32°F/15k ,77°F /5.4kΩ)
TH23 PIPE TEMP. DETECTION / GAS1
( 32°F/15k ,77°F /5.4kΩ)
TH24 PIPE TEMP. DETECTION / GAS2
( 32°F/15k ,77°F /5.4kΩ)
A.B ADDRESS BOARD
SWA SWITCH FAN SPEED SELECTOR
SW1 MODE SELECTION
SW11 ADDRESS SETTING 1s DIGIT
SW12 ADDRESS SETTING 10ths DIGIT
SW14 BRANCH No.
S.B SWITCH BOARD
SWE1 EMERGENCY OPERATION(HEAT)
SWE2 EMERGENCY OPERATION(COOL)
W.B PCB FOR WIRELESS REMOTE CONTROLLER
LED1 LED(OPERATION INDICATOR:GREEN)
LED2 LED(OPERATION FOR HEATING :ORANGE )
RU
RECEIVING UNIT
POWER SUPPLY
208/230V 60Hz
3
6
LEV
M
I.B
CN52
1
(GRN)
LDSWE(A) 5 1
(BLU)
5 1
CN51
(WHT)
CN24
1 6 1
CNRU LEV
(YLW)
(WHT) CN60 2 1
(YLW)
FLOAT SW
CN4F
(WHT)
4 1
GAS2
CN2G
(BLK)
2 1
CN32
(WHT)
LIQUID/GAS1
CN44
3 1
(WHT)
ADDRESS
ADDRESS
4 1
CN42
CN81
(RED) (RED)
1
4 1 INTAKE
CN20
(RED)
2 1
LED2
CN3A
(BLU)
1
3
TB15
TO MA-REMOTE
1
CONTROLLER
2
DC8.7-13V
M1
TO OUTDOOR UNIT
BC CONTROLLER
M2
REMOTE CONTROLLER
DC24-30V
S
(SHIELD)
TB5
Function
Main power supply (Indoor unit:208-230V)
Power on → Iamp is lit
Power supply for MA-Remote controller
on → Iamp is lit
: terminal block,
7
NAME
LD SWE(B)
LED2 LD101(B)
SWE1 SWE2
RU
LED1 S.B
W.B
<fig: 1>
TH24
Models SW2
t
○
ON
P12
TH23
OFF
123456
t
○
TH22
ON
t P15
○
OFF
123456
TH21
ON
t
○
P18
OFF
123456
4
8
ADDRESS
CN43
(RED)
SW1
3
ON
2
ADDRESS
OFF
1
CN82
1 2 3 4 5 6 7 8 9 10
SWA
(RED)
SW12 SW11 SW14
10ths 1s BRANCH
DIGIT DIGIT No.
A.B
:connecter.