Leakage Test With Nitrogen - Huawei NetCol8000-A013 User Manual

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (600 mm Width)
Figure 3-37 Cable routes
(1) Port for the signal
cable between the
indoor and outdoor
units

3.12 Leakage Test with Nitrogen

Context
● The leakage test with nitrogen described in this section is dedicated for testing
the leaks of the indoor unit and the pipes connected to it.
● 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.
● During the pressure preservation process, do not remove the leather hose and
pressure gauge; otherwise, nitrogen may leak.
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.
Issue 04 (2022-11-25)
(2) Port for teamwork
and monitoring cables
NO TICE
NO TICE
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3 System Installation
(3) Port for the indoor (4) Port for the
unit power cable outdoor unit power
cable
62