MegaLife ARV Series, Service Manual, Page: 22 / 172

MegaLife ARV OUTDOOR UNIT
–
ARV 6 ALL DC INVERTER T1 50&60HZ Service Manual
22
3.2 Selection of copper pipe
3.2.1 Please use seamless red copper pipe .
3.2.2 Specification of refrigerant pipe should be selected according to unit requirement
※
Thickness of copper tube
Specifications
Thickness
(mm)
Weight / length
inch mm 1m =* Kg 1Kg=* m
1/4 Φ 6.35 0.8 0.124 8.06
3/8 Φ 9.52 0.8 0.195 5.12
1/2 Φ 12.7 0.9 0.297 3.36
5/8 Φ 15.88 1.0 0.416 2.4
3/4 Φ 19.05 1.0 0.505 1.98
7/8 Φ 22.22 1.2 0.706 1.41
1 Φ 25.4 1.2 0.813 1.23
Φ 28.6 1.2 0.92 1.08
Φ 31.8 1.2 1.11 0.9
Φ 34.9 1.3 1.223 0.817
Φ 38.1 1.4 1.438 0.695
difficult oil return
abnormal air exhaust
difficult oil return
（
insufficient
air velocity)
Too long
Too thick
blocked
compressor
blocked
compressor
abnormal air exhaust