Mitsubishi Electric PKFY-P15VBM-E Technical & Service Manual page 13

PKFY-P15VBM-E
PKFY-P20, 25VBM-ER1
Legend
Symbol
Name
I.B Indoor controller board
CN32
Connector Remote switch
Centrally control
CN51
CN52 Remote indication
SW2 Capacity code
Switch
SW3 Mode selection
P.B Indoor power board
ZNR Varistor
FUSE Fuse (T6.3AL 250V)
F.C
Fan phase control
Capacitor (Fan motor)
C1
MF Fan motor
W.B
9
SW1 SW2
CNB
BZ
RU
LED1 LED2
A.B
SW5
4
(RED)
220V 240V
ADDRESS
CN43
1
SW1
ON
8
OFF (RED)
1 2 3 4 5 6 7 8 9 1 0
ADDRESS
CN82
SW12 SW11 SW14
0 0
0
1
10ths 1s
BRANCH
DIGIT DIGIT
No.
See fig :*1
Note
1. At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.
2. In case of using MA-remote controller, please connect MA-remote controller cable in an accessory
to the connector
1 2
3. In case of using M-NET, please connect to TB5 (Transmission line is non-polar.)
4. Symbols used in wiring diagram above are,
5. The setting of the SW2 dip switches differs in the capacity. For the detail, refer to the fig :*1.
6. Please set the switch SW5 according to the power supply voltage.
Set SW5 to 240V side when the power supply is 230 and 240 volts.
When the power supply is 220 volts, set SW5 to 220V side.
LED on indoor board for service
Mark Meaning
Main power supply
LED1
Power supply for
LED2
MA-Remote controller
MODELS SW2
ON
P15
OFF
1 2 3 4
Symbol
Vane motor
MV
Linear expansion valve
LEV
TB2
Terminal
block
TB5
Thermistor
TH21
TH22
TH23
A.B Address board
SW1 Switch
1 RED
M WHT
LEV
BLU
ORN
5
5 YLW
6
9
1 6 1 5 1
CN60 CN5V CN90
LEV VANE WIRELESS
(WHT) (BLU) (WHT)
1 5 1 5
CN51 CN52
1 4
4
CN42
ADDRESS
8
(RED)
SW3 SW2
ON
3
OFF
CN32
12345678910 1234
I.B
. (Remote controller wire is non-polar.)
: terminal block,
Function
Main power supply (indoor unit:220-240V)
power on lamp is lit
Power supply for MA-Remote controller
on lamp is lit
MODELS
P20
Name
Power supply
Transmission
Room temp.detection
(0 /15k ,25 /5.4k )
Pipe temp.detection/Liquid
(0 /15k ,25 /5.4k )
Pipe temp.detection/Gas
(0 /15k ,25 /5.4k )
Mode selection
TO MA-REMOTE
M
CONTROLLER
TH23 TH22 TH21
DC8.7-13V
MV
t° t° t°
M
1~
MF
1 2 1 2
9
CN29 CN21
GAS LIQUID
(BLK) (WHT)
1 8
CN81
1
1 3 1 2
ADDRESS
CN35P
CN3A CN20
(RED)
(BLU)
MA- INTAKE
REMOCON (RED)
(BLU)
1 1 4
CN41
3 1 5 1
LED2 LED1
CN35M CN53M
(BLU) (RED)
P.B
: connector
SW2 MODELS
ON
P25
OFF
1 2 3 4
13 13
Symbol Name
SW5 Voltage selection
Switch
SW11 Address setting 1s digit
Address setting 10ths digit
SW12
SW14 Connection No.
Wireless remote controller board
W.B
RU Receving unit
BZ Buzzer
LED1 LED (Operation indicator: Green)
LED (Preparation for heating: Orange)
LED2
SW1 Emergency operation (Heat)
SW2 Emergency operation (Cool)
TO OUTDOOR UNIT
BC CONTROLLER
M-NET REMOTE CONTROLLER
DC24-30V
M1 M2
TB5
1 2
FAN
(GRN)
1 2 1 4 6 1 3
CND
CN2M
(RED)
M-NET
(BLU)
3
C1
FUSE
250V
ZNR
6.3A
5
F.C
U
CN53P
(RED)
1
<*1>
SW2
ON
OFF
1 2 3 4
TO NEXT
INDOOR UNIT
TB2
L
PULL
BOX
N
FUSE
(16A)
BREAKER
(16A)
POWER SUPPLY
~/N 220-240V 50Hz
~/N 220V 60Hz