Leak Checking - Huawei NetCol5000-A User Manual

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
Figure 3-31 Routing pipes from the bottom
(1) Humidifier water inlet

3.9.3 Leak Checking

Prerequisites
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Procedure
Step 1 Connect the pressure gauge, hose, reducing valve, and the nitrogen to the device. The pressure
gauge valves and reducing valve should be closed.
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Issue 13 (2019-01-15)
Pipes from indoor unit and outdoor unit have been soldered properly.
The measuring range of the pressure gauge must be greater than or equal to 4.0 MPa, and
the tolerance range of the leather hose must be greater than or equal to 4.5 MPa.
Do not remove the pressure gauge and the leather hose when charging nitrogen to retain
the pressure to prevent the nitrogen from leaking.
Before leak checking, make sure that the needle valve plugs are tightened.
Only nitrogen is allowed when leak checking.
If low-temperature component is not configured, charge nitrogen from (1) and (2), as
shown in Figure 3-32.
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(2) Condensate pump drainpipe
3 Installation Guide
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