Sinclair SCV-50EA Service Manual page 67

15. Rectifier bridge input port N
16. Rectifier bridge input port L
17. 8A fuse tube
18. Solenoid valve port(Reserved)
19. Exhaust valve electric heater port
21. Plate heat exchanger electric heater
22. Differential pressure valve electric heater port
23. Built-in water pump port
24. Compressor electric heater
25. 4-way valve port
26. External pump/Remote alarm port
27. Transformer input port
38. P/N/+15V port
29. Communication port between IPDU and main PCB
30. Down DC fan port
31. Check touch switch
32. Up DC fan port
33. Force-cooling touch switch
PFC Module
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