DC Inverter Multi VRF System
7
3.3 Piping Work Requirements
Refer to the table below for piping work requirements:
R410A Refrigerant System
Outer diameter (mm/inch)
Wall thickness(mm/ inch)
Φ
6.35(
Φ
1/4)
≥
0.8
(1/32)
Φ
9.52(
Φ
3/8)
≥
0.8
(1/32)
Φ
12.7
(
Φ
1/2)
≥
0.8
(1/32)
Φ
15.9(
Φ
5/8)
≥
1.0
(1/25)
Φ
19.05(
Φ
3/4)
≥
1.0
(1/25)
