Power-On Commissioning; Vacuumizing And Precharging Refrigerant; Vacuumizing - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)

6.1 Vacuumizing and Precharging Refrigerant

During the commissioning of the smart cooling product, ensure that no comburent
substance (such as air or additive) enters the refrigerant pipes. The supplier is not
liable for any risks and losses caused due to violation.

6.1.1 Vacuumizing

● Before vacuumizing, ensure that the refrigerant pipe system has completed
nitrogen injection and pressure preservation and does not leak.
● Before vacuumizing, ensure that all connectors on the device are tightened.
● System high pressure may occur if the system is not vacummized or is not
thoroughly vacummized. Therefore, ensure that the system is thoroughly
vacummized.
Step 1 Check whether a low temperature component is installed on the outdoor side.
●
Issue 04 (2022-12-15)
6
CA UTION
NO TICE
If no low temperature component is configured, connect the pressure gauges
and vacuum pump to the low-pressure needle valve and discharge pipe
needle valve, and start vacuumizing.
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Power-On Commissioning

6 Power-On Commissioning
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