Mitsubishi Electric PKFY-P20VAM-E Technical And Service Manual page 17

7-3. TEST POINT DIAGRAM
7-3-1. Indoor controller board
PKFY-P20VAM-E
PKFY-P25VAM-E
CN6V
Vane moter output
(MV)
CN60
Linear expansion valve
output (LEV)
CN51
Centrally control
CN52
Remote indication
SW3
Mode selection
SW2
Capacity setting
CN41 CN32
Connector Connector
(HA terminal-A) (Remote switch)
CN53M
Connect to the indoor power board (CN53P)
Between 1 1 to 2 2 24-30V DC (non-polat)
Between 3 3 to 5 5 12.5-13.7V DC (Pin3 3 (+))
Between 4 4 to 5 5 11.5-12.7V DC (Pin4 4 (+))
17
CN34
Fan motor rotational
frequency input (MF)
CN29
Pipe temperature
thermistor/Gas (TH23)
CN21
Pipe temperature
thermistor/Liquid (TH22)
CN3A
Connect to the
MA-Remote controller
1 1 to 3 3 8.7-13V DC
Between
(Pin1 1 (+))
CN20
Room temperature
thermistor (TH21)
LED2
Power supply for
MA-Remote controller
CN35M
Connect to the indoor
power board (CN35P)