<SUB PCB>
Connector Connected to Normal value Remark
R
IN
TB1(L) 220-240VAC Power supply
S
IN
TB1(N) 0VAC Power supply
SO R of Main PCB 220-240VAC
RO S of Main PCB 0VAC
S-1 - C-1 S-2,C-2 of Main PCB 20VDC
CN20V CN20V of Main PCB 20VDC
CNA(Black-White) Indoor unit A 220-240VAC Power supply
CNA(Red) Indoor unit A 0VAC Earth
CNB(Black-White) Indoor unit B 220-240VAC Power supply
CNB(Brown) Indoor unit B 0VAC Earth
CNC(Black-White) Indoor unit C 220-240VAC Power supply
CNC(Blue) Indoor unit C 0VAC Earth
CND(Black-White) Indoor unit D 220-240VAC Power supply
CND(Yellow) Indoor unit D 0VAC Earth
CN20S 20S 220-240VAC For 4 way valve
CNHEAT Crankcase heater 220-240VAC For crankcase heater
CNEEV1 EEV A(WH) and EEV B(RD)
CNMA1N(1-4) 13VDC
CNMA1N(2-4) 0-1VDC When 20S is ON
CNMA1N(3-4) 0-1VDC When CH is ON
CNMA1N(5-4) 5VDC
CNEEV2 EEV C(BL) and EEV D(GR)
CNTH Sensor for suction pipe Tho-S
CNSUB of Main PCB
S
IN
to N-terminal
R
IN
to L-terminal
CN20S
CNHEAT
CN20V
CNEEV2
CNMA1N
CNTH
CNEEV2
C-1 (RD)S-1 (WH)
RO (BK)SO (WH)
CNA
CNB
CNC
CND
Grounding cable
Grounding cable
Grounding cable