Huawei NetCol5000-A-035 - Refrigerant Oil; Pipe Components

NetCol5000-A(025, 035) In-row Air Cooled Smart
Cooling Product
User Manual (600 mm)
3 Installation Guide
Issue 13 (2019-01-15)
Copyright © Huawei Technologies Co., Ltd.
27
Temperature
(°C)
Saturation
Pressure-S
urface
Pressure
(MPa)
Temperature
(°C)
Saturation
Pressure-S
urface
Pressure
(MPa)
Temperatur
e (°C)
Saturati
on
Pressure
-Surface
Pressure
(MPa)
18
1.27
37
2.15
N/A
N/A
3.1.2.2 Refrigerant Oil
The recommended refrigerant oil is Danfoss 160SZ. You can purchase it from Huawei, or
purchase it by yourself after being confirmed by Huawei.
If the low-temperature component is connected, additional refrigerant oil. If not, ignore the refrigerant
oil.
3.1.2.3 Pipe Components
Pipe components are optional and include:

Liquid pipe: copper pipe (for R410A) external diameter: 5/8 inch; thickness: 1.0 mm;
pressure tolerance range: ≥ 4.5 MPa.

Gas pipe: copper pipe (for R410A) external diameter: 7/8 inch; thickness: 1.2 mm;
pressure tolerance range: ≥ 4.5 MPa.

Thermal insulation foam: thickness ≥ 13 mm.

Oil traps and inverted traps: To ensure the NetCol5000-A reliability, make an oil trap
every 5 m to 6 m along pipes in the vertical direction and make an inverted trap
respectively at the intake vent and exhaust vent of the outdoor unit. Figure 3-2 shows the
specifications for the oil traps and inverted traps.
Figure 3-2 Oil trap and inverted traps (unit: mm)