CHV Mini VRF 50/60Hz
84 201908
CHV Mini Series Service Manual
2. PCB Ports Instructions
PCB ports instruction:
No. Content Remark
1 AC220V 220V AC output interface
2 4-WAY 4-way valve interface
3 SV2 Injection cooling valve interface
4 SV3 Low temp. heating bypass valve interface
5 HEAT Electric heating interface
6 RLY Relay
7 EXV Electronic expansion valve interface
8 CN26 Terminal for inspection signal wire
9 LP Low pressure switch signal
10 HP High pressure switch signal
11 T7 Refrigerant heat pipe temperature
12 T3B Condenser middle temperature
13 T5 Compressor exhaust temperature
14 T3&T4 Condenser outlet/ Ambient temperature
15 COMM Terminal for communication signal wire
16 CN24 Filter board control interface
17 T6 Radiator temperature
18 Refrigerant radiator Available for 12.5-16kW
19 L ----
20 N ----
21 U Inverter compressor
22 V Inverter compressor
23 W Inverter compressor
24 FAN1 Fan interface
25 DEBUG 1/2 ----
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