Installation Of Refrigerant Pipe; Precautions During Installation Of Refrigerant Pipe; Requirement Of Wall Thickness Of Refrigerant Pipe; Sizes Of Connecting Pipe - Trane TXUM524 Installation Operation & Maintenance

Installation of refrigerant pipe

Choose the connecting pipe and branch pipe with proper diameter according to size of the connecting
pipe of the unit, and connect them to the indoor unit, then to the outdoor unit. Please refer to the
connection schematic for the typical connection of the unit.

Precautions during installation of refrigerant pipe

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Requirement of wall thickness of refrigerant pipe

Wall thickness ≥ mm

Sizes of connecting pipe

Outdoor unit
TX(U)M524/536
TX(U)M542/548
Indoor unit
MW(C)D507/509/510
MW(C)D511/512
MW(C)D516/518
MW(C)D524
MW(C)W509
MW(C)W512
MW(C)W518
MW(C)C518
MW(C)C524
AMS-SVX01A-EN
For pipe construction, clean new pipe will be applied, free from dust, water or any other impurity
inside the copper tube.
In order to prevent moisture, impurity or dust from entering the refrigerant pipe, please store the
fi tting pipes required by installation indoor, and the both ends shall keep tight, until brazing.
It shall pay special attention when the copper tube passes through the wall, to avoid dirt entering
it.
Pipe connection of the outdoor unit is forbidden in rainy days, to prevent moisture or dirt from
entering the fi tting pipe.
Number of elbow pipe shall be minimized, and larger bending radius shall be applied when the
pipe is bended.
Pipe diameter 1/4''
0.7
Liquid pipe
Outdoor unit
inch
3/8"
3/8"
Liquid pipe
Indoor unit
inch
1/4"
1/4"
3/8"
3/8"
1/4"
1/4"
1/4"
1/4"
3/8"
3/8'' 1/2'' 5/8'' 3/4''
0.8 0.8 1.0 1.2
Gas pipe
inch
5/8"
3/4"
Gas pipe
inch
3/8"
1/2"
5/8"
5/8"
3/8"
1/2"
1/2"
1/2"
5/8"
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