Precharging Refrigerant - Huawei NetCol5000-A050 User Manual

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

6.1.3 Precharging Refrigerant

● Before charging refrigerant, ensure that air is exhausted from the pipe
connected to the refrigerant cylinder.
● When charging refrigerant, you are advised to use a safety valve to prevent
refrigerant leakage during the removal of the rubber hose, which may cause
frostbite.
● Wear antifreeze gloves when performing refrigerant related operations.
● Fill the refrigerant (R410A) after checking that the cooling system does not
leak and the vacuum level meets the requirements.
Step 1 Take off the vacuum pump from the vacuumizing device, and replace the vacuum
pump with a refrigerant cylinder.
Figure 6-3 Charging refrigerant (without a low temperature component)
(1) Electronic balance
(4) Connection nut
Figure 6-4 Charging refrigerant (with a low temperature component)
(1) Electronic balance
(4) Pressure gauge 2
Issue 04 (2022-12-15)
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(2) Refrigerant cylinder
(5) Low-pressure needle valve (6) Exhaust pipe needle valve
(2) Refrigerant cylinder
(5) Connection nut
6 Power-On Commissioning
(3) Pressure gauge
(3) Pressure gauge 1
(6) Low-pressure needle valve
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