Power-On - Huawei NetCol5000-A035 User Manual

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width)
Figure 5-4 Breakers
(1) Compressor circuit breaker
QF3
(4) General circuit breaker QF1 (5) Fan circuit breaker QF6
(7) Condensate pump circuit
breaker QF9

5.3.3 Power-On

Context
All circuit breakers are set to OFF before delivery. If the preset status has been
changed, restore the preset status before any operation.
Procedure
Step 1 Subsequently switch on main control board power circuit breaker QF8 and general
circuit breaker QF1.
Step 2 Measure the controller loop voltage by using a voltmeter, as shown in
Ensure that the control voltage is within the range of 24 V AC (tolerance ±10%). If
the voltage is not within the range, check whether the voltage jumper matches
the mains, or whether the current input voltage meets normal voltage
requirements.
Issue 17 (2020-10-22)
NO TE
Alarms and LCD buzzer noise may occur if the compressor and fan circuit breakers are not
switched on. The alarms and buzzer noise disappear when the switches are closed.
Copyright © Huawei Technologies Co., Ltd.
(2) Electric heater circuit
breaker QF4
5 Power-On Commissioning
(3) Humidifier circuit breaker
QF5
(6) Main control board power
circuit breaker QF8
Figure 5-5.
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