Procedure
Step 1 Check whether a low temperature component is installed on the outdoor side.
● If no low temperature component is installed on the outdoor side, connect the
pressure gauge and vacuum pump at the low-pressure and exhaust pipe
needle valves to vacuumize the system simultaneously, as shown in Figure
6-1.
Figure 6-1 Vacuumizing the system without a low temperature component
(1) Vacuum pump (2) Pressure gauge
(3) Low-pressure needle valve (4) Exhaust pipe needle valve
● If a low-temperature component is installed on the outdoor side, connect the
pressure gauge and vacuum pump at the low-pressure, exhaust pipe, and
liquid pipe needle valves to vacuumize the system simultaneously, as shown
in Figure 6-2.
Figure 6-2 Vacuumizing the system with a low temperature component
(1) Vacuum pump
(2) Pressure gauge 1 (3) Pressure gauge 2
(4) Low-pressure needle valve (5) Exhaust pipe needle valve (6) Liquid pipe needle valve
NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual 6 Power-On Commissioning
Issue 08 (2021-09-17) Copyright © Huawei Technologies Co., Ltd. 123
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