Leakage Test With Nitrogen - Huawei NetCol8000-A013 User Manual

NetCol8000-A013 In-room Air Cooled Smart Cooling
Product
User Manual (800 mm Width)
Figure 3-38 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 rubber hose must be greater than or
equal to 4.5 MPa.
● During pressure preservation, do not remove the rubber hoses and pressure
gauges; otherwise, nitrogen may leak.
Procedure
Step 1 Open the stop valves for the gas pipe and liquid pipe of the indoor unit.
Issue 06 (2022-11-25)
(2) Port for teamwork
and monitoring cables
NO TICE
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(3) Port for the indoor (4) Port for the
unit power cable outdoor unit power
cable
3 Installation
58