Procedure
Step 1 Open the stop valves for the gas pipe and liquid pipe of the indoor unit.
Before opening the indoor unit stop valves, ensure that the stop valves for the gas
pipe and liquid pipe of the outdoor unit are closed.
Step 2 Connect the pressure gauge, rubber hose, and nitrogen cylinder. A reducing valve
must be installed on the head of the nitrogen cylinder, as shown in Figure 4-70.
The outlet pressure of the reducing valve must not exceed 3.0 MPa.
If the outlet pressure of the reducing valve is greater than 3.0 MPa, components
may be damaged.
Figure 4-70 Leakage test with nitrogen
(1) Nitrogen cylinder
(2) Reducing valve (3) Low pressure gauge
(4) High pressure gauge (5) Gas pipe needle valve (6) Liquid pipe needle valve
Step 3 Inject 3.0 MPa nitrogen and preserve the pressure for 24 hours. The system
pressure should stay constant under unchanging ambient temperature conditions.
If there is considerable temperature change and the pressure changes, perform the
test again.
FusionModule800 Smart Small Data Center
User Manual 4 Installation Guide
Issue 01 (2021-02-05) Copyright © Huawei Technologies Co., Ltd. 149
To Next Page
Loading...
Need help?
General