Refrigerant Oil
The refrigerant oil, Danfoss 160SZ, is recommended.
● If the indoor unit code is one of 52270741, 52270742, 52270743, 52270744,
52270745, 52270746, 52270747, and 52270748, additional refrigerant oil =
additional refrigerant charge x 2.5%.
● If no, charge refrigerant oil as follows:
– If the low-temperature component is not connected, do not add
refrigerant oil.
– If the low-temperature component is connected, and L ≤ 10 m, do not
add refrigerant oil.
– If the low-temperature component is connected, and L > 10 m, additional
refrigerant oil = additional refrigerant charge x 4%.
5.2.2 (Optional) Charging in Refrigerant Oil
Prerequisites
Refrigerant oil is prepared by referring to 5.2.1 Calculation about the Charged
the Refrigerant and Refrigerant Oil.
Procedure
Step 1 Connect the refrigerant oil bucket, pressure gauge, and vacuum pump to the
device, as shown in Figure 5-1.
NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm Width) 5 Power-On Commissioning
Issue 17 (2020-10-22) Copyright © Huawei Technologies Co., Ltd. 138
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