Powering On The Equipment - Huawei NetCol5000-A020 User Manual

NetCol5000-A020 Air Cooled In-row Precision Air
Conditioner
User Manual

4.4 Powering on the Equipment

Context
Figure 4-4
commissioning.
Figure 4-4 Switch position
(1) Main circuit breaker QF1
(4) Compromise distribution
module circuit breaker QF4
Procedure
Step 1 Switch on the external general circuit breaker, main circuit breaker QF1 for the indoor unit,
main control board circuit breaker QF5, and general circuit breaker for the outdoor unit in
sequence.
After the main control board circuit breaker QF5 is switched on, the crankcase heat tape starts.
Before starting the compressor, ensure that the crankcase heat tape has worked for over 12
hours. Otherwise, no maintenance operation is allowed.
Issue 01 (2014-06-30)
shows positions of various circuit breakers, which are necessary for system
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(2) Electric heater circuit
breaker QF2
(5) Main control board
circuit breaker QF5
4 Power-On Commissioning
(3) Humidifier circuit
breaker QF3
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