Vrv main control board specifications

Voltas VRV outdoor unit main control board and specifications


Outdoor unit main control board specifications


1. Discharge temperature sensed Port of the inverter compressor A
2. Discharge temperature sensed port of the inverter compressor A or B
3. Temperature sensed port if the module
4. Reserve
5. Wiring port for communication between indoor and outdoor unit, indoor unit network, outdoor unit network and network accounting
6. Three phase detection port
7. Reserve
8. Power input of the no.1 transformer
9. Power input of the no.2 transformer
10. Heat output terminal of inverter compressor A
11. Heat input terminal of inverter compressor B
12. EXV A driving port
13. EXV B driving Port
14. Four way valve output terminal
15. One way valve out put terminal
16. Power control output terminal
17. Null line terminal
18. Power output of the no.1 transformer
19. Power out put of the no.2 transformer
20. Activation port of inverter module B
21. Port for inverter compressor module B voltage inspection
22. Port for inverter compressor module A voltage inspection
23. Activation port of inverter module A
24. Power supply connected port of the main control panel
25. ON/OFF signal input port for system low pressure inspection
26. ON/OFF signal input port for system high pressure inspection
27. Reserve
28. Reserve
29. Current inspection port of the inverter compressors A and B
30. Input port for system high pressure inspection
31. Reserve
32. Inspection port for temperature of outdoor ambient and Condenser coil
33. Communication ports between outdoor units
34. Control port of DC fan B
35. Control port of DC fan A


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