Huawei NetCol5000-C - Routine Maintenance; Electrical Control Box Component Maintenance

NetCol5000-C Chilled Water-Cooled In-Row Precision
Air Conditioner
User Manual
6 System Operation and Maintenance
Issue 02 (2013-12-10)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
101
Item
Result
and no overbend.
Check that the H/T sensors are not loose
and work properly.
Check that the indoor fans do not generate
abnormal voice and shock during operation.
Check that the power cables are fastened
well and intactly.
Record the alarms generated in the past
month.
Check that three is no leakage on the bottom
board.
Table 6-2 Quarterly maintenance items
Item
Result
Clean or replace the filters.
Clean the condensate water pan.
Check the operating status of the chilled
water valve.
Check the operating status of the water
detector sensor.
Table 6-3 Semiannual maintenance items
Item
Result
Check and fasten all circuit connections.
6.2 Routine Maintenance
6.2.1 Electrical Control Box Component Maintenance
Components of an electrical control box include main control board, terminal block, circuit
breakers, SPD, AC contactor, relay, and transformer. To maintain the preceding components,
perform the following steps:
1. Remove the cover of the electrical control box and all terminals.
2. Loosen two screws on the upper part of the electrical control box.