Huawei NetCol8000-A045D User Manual page 79

NetCol8000-A(045, 055, 060, 090, 120) In-room Air
Cooled Smart Cooling Product
User Manual
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Figure 4-22 Specifications for oil traps and inverted traps (unit: mm)
Table 4-2 Specifications for oil traps and inverted traps
No.
1
2
3
4
Issue 05 (2020-10-10)
– 60 m < L ≤ 100 m: R410A copper pipe; outer diameter of 1 inch (25.4
mm); wall thickness of 1.2 mm; operating pressure > 4.5 MPa
Thermal insulation foam: thickness ≥ 13 mm
Oil trap and inverted trap: Install an oil trap every five to six meters in the
vertical direction along the gas pipe and an inverted trap for the inlet and
outlet of the outdoor unit to ensure system reliability.
Name
Oil trap
Oil trap
Inverted trap of
gas pipes
Inverted trap of
gas pipes
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Outer Diameter Technical Requirements
and Thickness
(mm)
22.2x1.2 Inner diameter at the expanded
end of the copper pipe: 22.4 mm;
outer diameter at the shrunk end:
19.5 mm
25.4x1.2 Inner diameter at the expanded
end of the copper pipe: 25.8 mm;
outer diameter at the shrunk end:
22.6 mm
22.2x1.2 Inner diameters at the two
expanded ends of the copper pipe:
22.6 mm
25.4x1.2 Inner diameters at the two
expanded ends of the copper pipe:
25.8 mm
4 System Installation
69