Commissioning 30 Kw Chilled Water Precision Air Conditioners - Huawei FusionModule1000B V100R003C00 Commissioning Manual

Water-cooled it solution

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FusionModule1000B Water-Cooled IT Solution

Commissioning Guide

If any device parameter is inconsistent with its initial configuration, change it to the initial

configuration unless you are permitted to change it otherwise.

Step 4 After checking that each chiller meets the initial configuration requirements, select the chiller

host on the controller and click Start.

If a chiller fails to start as excessive air accumulates in the cooling system, expel the air and

then restart the chiller.

Step 5 Check that currents of different phases are balanced using the clamp meter after the chiller has

started.

Step 6 Check whether the compressor is running. Remove the pin of the solenoid valve and touch the

solenoid valve using a conductive object such as a screwdriver. If the object is attracted, the

solenoid valve is electrified, and the compressor is running; otherwise, the compressor is not

running. You can also use a clamp meter to measure the current changes to determine whether

the compressor is running.

Step 7 After the chiller has been running with full load after a period of time, check whether the high

and low pressures of the system are normal, and whether the pressures of different chillers are

the same.

Step 8 During the commissioning process, if the sight glass shows that the refrigerant flows with

bubbles or makes a hiss sound when flowing through the flow regulating valve, the section

after the flow regulating valve becomes frosty, or the high and low pressures are abnormal,

then promptly check, analyze, and rectify the fault.

The chilled water circulates in the system. If you run the system for too long or run multiple

chillers at the same time, the chilled water inlet temperature may become too low, which can

trigger chiller freezing protection or chiller shutdown. Therefore, do not run multiple chillers

during the commissioning.

----End

9.2.2 Commissioning 30 kW Chilled Water Precision Air

Conditioners

Prerequisites

The power-on commissioning for the upstream PDC of 30 kW chilled water precision air

conditioners is completed.

Issue 02 (2017-01-10)

Huawei Proprietary and Confidential

9 Commissioning Core Components

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