Figure 4-15 Stop valve
(1) Needle valve nut (2) Rear cover nut (3) Black plastic nut
Procedure
Step 1 Open the stop valve on the gas pipe of the indoor unit using a 5 mm hex key.
Figure 4-16 Opening a stop valve plug
Step 2 Remove the needle valve nut at the gas pipe of the indoor unit, connect a rubber
hose and a pressure gauge to the gas pipe needle valve, and slowly exhaust
nitrogen, as shown in Figure 4-17.
When you connect the rubber hose, the pressure gauge valve should be closed.
When exhausting nitrogen, ensure that the rubber hose is secured. Otherwise,
personal injury will be caused as a result of the
airow impact.
FusionModule500 Smart Mini Data Center
User Manual 4 Installation Guide
Issue 02 (2020-12-25) Copyright © Huawei Technologies Co., Ltd. 78
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