100 Appendix 1 Composition Of Electrical Control Box
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23
22
A
25
2
7
8
9
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11 12 13 14 16 17 20 2119
24
15 18
A amplified
Figure 3 Internal composition of electric control box of three-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
Liebert.PEX2 Series Air Conditioner User Manual
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