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 NetCol8000-A045/A055/A090 vacuumizing the system without a
low-temperature component
(downow)
(1) Vacuum pump (2) Pressure gauge
(3) Low-pressure needle valve (4) Exhaust pipe needle valve
NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual 6 Power-On Commissioning
Issue 05 (2020-10-10) Copyright © Huawei Technologies Co., Ltd. 158
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