Mitsubishi Electric PLFY-WP32VBM-E Technical & Service Manual page 22

8-3. TEST POINT DIAGRAM
8-3-1. Indoor controller board
PLFY-WP32VBM-E.UK PLFY-WP40VBM-E.UK PLFY-WP50VBM-E.UK
CN4Y
i-See sensor
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: +)
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: +)
CN44
Pipe temperature detection
thermistor
1–2: Liquid (TH22)
3–4: Gas (TH23)
CN4F
Drain float switch (FS)
CN20
Room temperature detec-
tion thermistor (TH21)
CN27
Damper signal output
12 V DC(1: +)
CN3G
Auto grille signal output
CN90
Connect to the wireless
remote controller board
(W.B)
LED1
Main power supply
(Indoor unit: 220–240 V)
CNMF
Connect to the
fan motor (MF)
1–4: 310–340 V DC
5–4: 15 V DC
CNP
Drain pump output (DP)
1–3: 220–240 V AC
CNAC
Auto grille power
(220–240 V AC)
Note: The voltage range of 12 V DC in this page is between 11.5 to 13.7 V DC.
OCH586
22
CN6Y
i-See sensor motor output
12 V DC pulse output
CN3A
Connect to the terminal block (TB15)
(MA-Remote controller connecting wire)
1–3: 8.7–13 V DC (Pin1 (+))
CNV
vane motor output
12 V DC pulse
CN32
Remote switch
Jumper wire J41, J42
Pair No.setting for wireless
remote controller
LED2
Power supply for
MA-Remote controller
SW3
Function setting
SW4
Model selection
SWE
Test run (Drain pump)
SW2
Capacity setting
CN2M
Connect to the terminal block (TB5)
(M-NET transmission connecting wire)
24–30 V DC (non-polar)
CND
Power supply for indoor
controller board
3–5: 220–240 V AC
FUSE
6.3 A 250 V