Mitsubishi Electric City Multi PMFY Series Technical & Service Manual page 28

8-4. TEST POINT DIAGRAM
8-4-1. Indoor controller board
PMFY-P20VBM-E
PMFY-P20VBM-E
1
CN27
Damper
CN25
Humidifier
CN6V
Vane motor output
(MV)
CN52
Remote indicator
1-2: Status lamp 12VDC (1 : +)
Fan motor output (SW1-5 OFF)
Thermostat ON (SW1-5 ON)
1-3: Cooling/Dry status lamp
12VDC (1 : +)
1-4: Heating status lamp
12VDC (1 : +)
CN51
Centrally control
1-2 : Control signal
12VDC pulse input (1 : +)
3-4 : Operation indicator
12VDC (3 : +)
3-5 : Malfunction indicator
12VDC (3 : +)
CN41
Connector
(HA terminal-A)
CN60
Linear expansion valve
output (LEV)
CN20
Room temperature
thermistor (TH21)
CN21
Pipe temperature
thermistor/Liquid (TH22)
CN29
Pipe temperature
thermistor/Gas (TH23)
CN31
Drain sensor (DS)
OC307F
PMFY-P25VBM-E
PMFY-P25VBM-E
1
SW2 SW3
Capacity setting Mode selection
LED2
Power supply for
MA-Remote controller
PMFY-P32VBM-E
PMFY-P32VBM-E
SW4 CN32
Model selection Connector
(Remote switch)
CN2M
Connect to the terminal block (TB5)
(M-NET transmission connecting wire)
24-30V DC (non-polar)
CN3A
Connect to the terminal block (TB15)
(MA-Remote controller connecting wire)
Between 1 to 3 8.7-13V DC (Pin1 (+))
28
PMFY-P40VBM-E
PMFY-P40VBM-E
1
CNP
Drain pump
output (DP)
Between 1 to 3
220-240V AC
CND
Power supply for
indoor controller board
Between 1 to 3
220-240V AC
FUSE
6.3A 250V
FAN
Fan motor output (MF)
LED1
Main power supply
(Indoor unit : 220-240V)
1