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9. Refrigerant Piping
A) Maximum Pipe Length and Maximum Number of Bends
Always choose the shortest path for refrigerant piping and follow the recommendation as tabulated below:
Remarks: The refrigerant pre-charged in the outdoor unit is for piping length up to 7.62m/25ft.
B) Flare Connection
• Cut the pipe stages by stages, advancing the blade of pipe cutter slowly.
• Remove burr with the burr remover. Hold the flaring end down to prevent burrs from dropping inside
pipe.
Model A5LCX 10C/CR A5LCX 15C/CR A5LCX 20C/CR A5LCX 25C/CR
Maximum length, L (m/ft) 15/49 15/49 30/98 30/98
Max. elevation, H (m/ft) 5/16.4 5/16.4 8/26.2 8/26.2
Max. number of 90° bends 10 10 10 10
Liquid pipe size ¼” ¼” ¼” ¼”
Gas pipe size
3
/
8
”
½” ½”
5
/
8
”
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