Light Commercial R410A on-off DM17-01.01.08en
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5.2.11 Set the supporter for the pipe.
5.2.12 Locate the pipe and fix it by supporter
For horizontal refrigerant pipe, the distance between supporters should not be exceed 1m.
For vertical refrigerant pipe, the distance between supporters should not be exceed 1.5m.
5.2.13 Connect the pipe to indoor unit and outdoor unit by using two spanners.
Be sure to use two spanners and proper torque to fasten the nut, too large torque will damage the
bellmouthing, and too small torque may cause leakage. Refer the following table for different pipe
connection.
Pipe Diameter
Torque Sketch map
(kgf.cm) (N.cm)
1/4" (6.35) 144~176 1420~1720
3/8" (9.52) 333~407 3270~3990
1/2" (12.7) 504~616 4950~6030
5/8" (15.9) 630~770 6180~7540
3/4" (19) 990~1210 9270~11860
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