Optional) Charging Refrigerant Oil - Huawei NetCol5000-A021 User Manual

NetCol5000-A021 In-row Air Cooled Smart Cooling
Product
User Manual (208 V)
Table 5-1 Refrigerant and Refrigerant oil to be charged for NetCol500-A0265S11E0
Item
Refrigerant (kg)
Refrigerant oil
(kg)

5.2.2 (Optional) Charging Refrigerant Oil

Prerequisites



Context
Ensure that the leather hose connectors are fastened before charging refrigerant oil and
vacuumizing the cooling system.
Procedure
Step 1 Connect the barrel with the pre-weighed refrigerant oil to the low-pressure needle valve
through a leather hose, and connect the vacuum pump to the discharge pipe needle valve, as
shown in
Issue 03 (2020-01-10)
Length of one-way pipeline (m)
0 < L ≤ 10
9
0
If the length of one-way pipeline of NetCol500-A0265S11E0 without low-temperature component is 80
meters, the refrigerant to be charged = 9 + (80 – 10) x 0.19 = 22.3 kg.
Check whether refrigerant oil needs to be added by referring to
Refrigerant and Refrigerant Oil to Be
system by referring to 5.2.3
There is no need to charge refrigerant oil upon the initial commissioning.
If you need to charge refrigerant oil onsite during maintenance, see
Figure 5-1.
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Charged. If not, directly vacuumize the cooling
Vacuumizing.
5 Power-On Commissioning
10 < L ≤ 80
9 + (L – 10) x 0.19
0
5.2.1 Requirements of
Figure 5-1.
133