Huawei FusionModule500 User Manual page 88

FusionModule500 Smart Mini Data Center
User Manual
Figure 4-15 Stop valve
(1) Needle valve 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
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 airflow impact.
Issue 02 (2020-12-25)
Figure
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(2) Rear cover nut
4-17.
4 Installation Guide
(3) Black plastic nut
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