Sinclair SCV-50EA Service Manual page 69

1. Input port for switching power supply
2. Debugging port
3. Connection port for operation and display panel
4. Tin/Tb1/Tout/Tb2 temperature sensor port
Note: Tin: water inlet temperature
Tout: water outlet temperature
Tb1: Temperature 1 of plate heat exchanger
Tb2: Temperature 2 of plate heat exchanger
5. Discharged temperature sensor port (Tp)
6.1 T3 temperature sensor port
6.2 T4 ambient temperature sensor port
7.1. Low pressure switch
7.2 High pressure switch
8. Checking touch switch
9. Force-cooling touch switch
10. Differential pressure valve port
11. Factory debugging port
12. Wired controller port
13. AC Current transformer
14. "Remote on/off" and "remote cooling/heating" port
15. Electronic expansion valve port
16. AC 220V power supply port
17. Solenoid valve port(Reserved)
18. Exhaust valve electric heater port
19. Electric heater port of Plate heat exchanger
20. Electric heater port of differential pressure valve
21. Built-in water pump port
22. Electric heater of the compressor
23. Precharge AC contactor port
24. 4-way valve port
25. External water pump/Remote alarm port
26. Up DC fan port
27. Down DC fan port
28. Power supply port for switching power supply of PFC board
29. Drive module port
30. P/N/+15V port
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