Refrigerant Charge Amount Requirements - Huawei NetCol5000-A050 User Manual

NetCol5000-A050 In-row Air Cooled Smart Cooling
Product
User Manual (1350 mm Depth)
dropping, vacuumize for another 10 minutes, after which the sight glass should
display green, a sign of dryness.
Step 5 After vacuumizing is complete, close all valves of the pressure gauge and the
vacuum pump without disconnecting the pump, and preserve the pressure for 10
minutes. Ensure that the pressure of the cooling system does not exceed 90 Pa
(absolute pressure).
----End

6.1.2 Refrigerant Charge Amount Requirements

Charge Amount
of Refrigerant
Standard amount
(kg)
Charge amount
(kg) = Standard
charge amount +
Extra charge
amount
Charge amount
(kg) = Standard
charge amount +
Extra charge
amount
Issue 04 (2022-12-15)
NO TE
If the minimum reading of the pressure gauge is greater than 60 Pa (absolute pressure),
ensure that the pointer stays at the smallest scale of the pressure gauge in vacuumizing
and preserve the pressure for 1 hour. Then check that the pressure does not rise evidently.
Actual One-Way
Pipe Length (L)
L ≤ 10 m
10 m < L ≤ 60 m
60 m < L ≤ 100 m
NO TE
When the outdoor unit is NetCol500-A120, the outdoor unit can be separately connected to
two indoor units.
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6 Power-On Commissioning
NetCol500-A060 NetCol500-A060
(NetCol500- (NetCol500-
A120) A120) & Low
Temperature
Component
10.2 35.8
10.2 + (L – 10) x 35.8 + (L – 10) x
0.19 0.19
10.2 + (L – 10) x 35.8 + (L – 10) x
0.25 0.27
105