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FusionCol8000-E400 Modular Indirect Evaporative
Cooling System
User Manual
2.6.3 Electrical Ports
Ports on the Electric Control Box (Electrical)
Figure 2-6 Ports
(1) Fuses FU5–FU7
(4) Terminal block X2
(7) Standby power switch QF2 (8) Active power switch QF1
(10) SPDs (SPD1 and SPD2)
(13) Dual power switchover
contactor (reserved)
(16) SPD (reserved)
(19) Fuse (reserved)
(22) Control contactor KM4
(25) Reserved
Issue 04 (2022-06-30)
(2) Intermediate contactor
KM3
(5) Dual power switchover
contactor KM1/KM2
(11) Terminal block X1
(14) Standby power switch for
auxiliary cooling (reserved)
(17) Terminal block (reserved) (18) Contactor+Heater relay
(20) Fuse (reserved)
(23) SPD and voltage detection
board FV1/2
(26) Reserved
Copyright © Huawei Technologies Co., Ltd.
2 Product Description
(3) Fuses FU1–FU4
(6) Transformer
(9) SPD switch QF3/4
(12) Active power switch for
auxiliary cooling (reserved)
(15) SPD switch (reserved)
(reserved)
(21) Intermediate contactor
(reserved)
(24) Crankcase heater relay
K1/2/3
(27) Compressor drive switches
(QF13–QF15)
23
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