Mitsubishi Electric CITY MULTY PKFY Series Technical & Service Manual page 24

8-3. TEST POINT DIAGRAM
8-3-1. Indoor controller board
PKFY-P15VBM-E
PKFY-P15VBM-ER2
PKFY-P15VBM-ER3
PKFY-P15VBM-ER4
PKFY-P15VBM-ER5
CN60
Linear expansion
valve output (LEV)
CN51
Centrally control
1-2 : Control signal
12 V DC pulse input (1 : +)
3-4 : Operation indicator
12 V DC (3 : +)
3-5 : Malfunction indicator
12 V DC (3 : +)
CN52
Remote indicator
1-2: Status lamp 12 V DC (1 : +)
Fan motor output (SW1-5 OFF)
Thermostat ON (SW1-5 ON)
1-3: Cooling/Dry status lamp
12 V DC (1 : +)
1-4: Heating status lamp
12 V DC (1 : +)
SW3
Mode selection
J41, J42
Wireless remote controller
Pair No. setting
JP105
Model setting
SW2
Capacity setting
Note: The voltage range of 12 V DC in this page is between 11.5 to 13.7 V DC.
OCH418E
PKFY-P20VBM-E
PKFY-P20VBM-ER1
PKFY-P20VBM-ER2
PKFY-P20VBM-ER3
PKFY-P20VBM-ER4
PKFY-P20VBM-ER5
CN42
CN5V
Connected to
Vane motor
the address
output (MV)
board (CN43)
PKFY-P25VBM-E
PKFY-P25VBM-ER1
PKFY-P25VBM-ER2
PKFY-P25VBM-ER3
PKFY-P25VBM-ER4
PKFY-P25VBM-ER5
CN90 CN81
Connected to the Connected to
wireless remote the address
controller board board (CN82)
(W.B)
CN35M
Connected to the indoor
power board (CN35P)
24
CN29
Pipe temperature
thermistor/gas (TH23)
CN21
Pipe temperature
thermistor/liquid (TH22)
CN20
Room temperature detection
thermistor (TH21)
CN3A
Connected to the
MA-Remote controller
Between 1 to 3 8.7–13 V DC
(Pin1 (+))
CN41
Connector
(HA terminal-A)
CN32
Connector
(Remote switch)
CN105
LED2
Indication of power supply
for MA-Remote controller
CN53M
Connected to the indoor power board (CN53P)
Between 1 to 2 24–30 V DC (non-polar)
Between 3 to 5 12.5–13.7 V DC (Pin3 (+))
Between 4 to 5 11.5–12.7 V DC (Pin4 (+))