NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Copyright © Huawei Technologies Co., Ltd.
Figure 5-4 Breakers
(1) Compressor circuit
breaker QF3
(2) Electric heater
circuit breaker QF4
(3) Humidifier circuit breaker
QF5
(4) General circuit breaker
QF1
(5) Fan circuit breaker
QF6
(6) Main control board power
circuit breaker QF8
(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.
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.
Step 2 Measure the controller loop voltage by using a voltmeter, as shown in Figure 5-5. 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.
To Next Page
Loading...
Need help?
General
