Mars Comfort-Aire Century VCD-SA Series Service Manual page 58

No. Name
1 Power Supply
2 TP
3 TESTPORT
4 HEAT1
5 HEAT2
6 4-WAY
7 AC-FAN2
8 AC-FAN1
9 H-PRO/L-PRO
10 Compressor Top
11 T2B
12 T4 T3
13 PMV
14 /
15 PQE
CN#
CN1 L1_in: connect to L1-line (230V AC input)
CN3 L2_in: connect to L2-line (230V AC input)
CN8 Exhaust temp. sensor TP
CN35 used for testing
CN19/CN20 connect to chassis heater, 208-230V AC when is ON
CN24/CN25 connect to compressor heater, 208-230V AC when is ON
CN17/CN18 connect to 4 way valve, 208-230V AC when is ON.
CN31/CN36/CN28 connect to AC fan2
CN27/CN34/CN32 connect to AC fan1
CN10 connect to low&high pressure switch
CN14 connect to compressor top temperature sensor
CN11 connect to pipe temp. sensor T2B
CN9 connect to pipe temp. sensor T3, ambient temp. sensor T4
CN15/CN23/CN26/
connect to Electric Expansion Valve(A~F)
CN30/CN33/CN38
CN6 connect to IPM&PFC board CN9
CN22 Communication to indoor unit
Service Manual - VCDxxSA
Meaning