Emerson Liebert PEX Series - Appendix 1 Composition Of Electrical Control Box

Appendix 1 Composition Of Electrical Control Box 99
Appendix 1 Composition Of Electrical Control Box
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Figure 1 Internal composition of electric control box of one-bay series
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Figure 2 Internal composition of electric control box of two-bay series
1: Compressor MCB 8: Control board MCB 15: Control board contactor 22: Main N terminal
2: Busbar 9: Fuse board 16: Condenser contactor 23: Main grounding terminal
3: Fan MCB 10: Control board 17: Humidification contactor 24: Fan contactor
4: Electric heater MCB 11: Field connection
terminal block
18: Electric heater contactor 25: Temp. & hum. sensor board
5: Infrared humidifier MCB 12: Isolation transformer 19: Fan over-current protector
6: Condenser MCB 13: Power transformer 20: Compressor contactor
7: Crankcase heater MCB 14: Crankcase heater
contactor
21: Main isolation switch
 Note
The two-bay series with single system has only one compressor MCB and contactor.
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