Charging The Remaining Refrigerant - Huawei NetCol5000-A050 User Manual

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

6.7 Charging the Remaining Refrigerant

● Before starting the compressor, ensure that the outdoor unit switch is turned
on.
● Remove the refrigerant cylinder after ensuring that no more refrigerant needs
to be charged.
● Charge refrigerant in strict accordance with the requirements. Otherwise, the
device may be damaged.
Step 1 Ensure that the device is powered on.
Step 2 On the home screen, choose Maint > Diagnostic Mode > Enter and change the
compressor rotational speed to 3000 rpm.
Step 3 Charge refrigerant on the basis of the precharging.
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●
Issue 04 (2022-12-15)
NO TICE
If there is no low temperature component, open the low-pressure valve of the
pressure gauge, and charge the remaining refrigerant from the low-pressure
needle valve in small flow or intermittently.
Figure 6-20 Charging refrigerant (without a low temperature component)
(1) Electronic balance
(4) Connection nut
If there is a low temperature component, open the low-pressure valves of
pressure gauge 1 and pressure gauge 2, and charge the remaining refrigerant
from the low-pressure needle valves in small flow or intermittently.
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(2) Refrigerant cylinder
(5) Low-pressure needle
valve
6 Power-On Commissioning
(3) Pressure gauge
(6) Exhaust pipe needle valve
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