Carrier X-POWER Series Service Manual page 103

Carrier service manual
replace thermal insulation material, "U"-shape pipe should be fixed outside the round log, and the round
log should be provided with anticorrosion treatment.
Pipe Diameter Less than Ф25/32in.(20mm)
Interval between
support points
3. Local fixing
To avoid stress concentration due to expansion and shrinkage of the pipe, it is usually required to
conduct local fixing beside the wall through-holes of the branch pipe and end pipe.
3.1.1.4 Requirements for installing branch pipe subassembly
When laying the branch pipe subassembly, pay attention to the following:
1) Do not replace branch pipe with tee pipe.
2) Follow the construction drawing and installation instructions to confirm the models of branch pipe
subassembly as well as the diameters of main pipe and branch pipe.
3) Neither sharp bend (an angle of 90°) nor connection to other branch pipe subassembly is allowed at
places within 500mm away from the branch pipe subassembly.
4) Try best to install the branch pipe subassembly at a place that facilitates welding (if doing so is
impossible, it is recommended to prefabricate the subassembly).
5) Install vertical or horizontal branch joint, and ensure that the horizontal angle is within 10°. Refer to the
right side picture:
U-shaped branching pipe
A direction view
Wrong
Horizontal surface
6) For avoid oil accumulate at the outdoor unit, please install the branching pipes properly.
7) To ensure even diversion of refrigerant, pay attention to the distance between the branch pipe
subassembly and the horizontal straight pipe.
a. Ensure that the distance between the bending point of copper pipe and the horizontal straight pipe
Installation
Ф25/32~1-37/64in.(Ф20~40)
4.92ft(1. 5m)
Correct
10°
10°
Larger thanФ1-37/64in.(Ф40mm)
6.56ft(2. 0m)
A
R410a DC Inverter 60Hz
8.2ft(2. 5m)
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