Piping System; Connection Of Refrigerant Pipes For 3 Pipes Heat Recovery System - Hisense Hi-FLEXi S Series Technical, Installation, Maintenance

3. Piping System

3.1 Connection of Refrigerant Pipes for 3 Pipes Heat Recovery System

Model (kBtu/h)
Low Pressure
Gas
Piping Size
a High/Low
Φ in.(mm)
Pressure Gas
Liquid
Indoor unit on the left side
Outdoor Unit A
a
To Indoor Unit
To Indoor Unit
72 (6RT)
3/4(19.05)
5/8(15.88)
3/8(9.53)
Outdoor Unit B
b
c
Manifold Pipe
Outdoor Unit
a
96 (8RT) 120 (10RT)
7/8(22.2) 1-1/8(28.6)
3/4(19.05) 7/8(22.2)
3/8(9.53) 1/2(12.7)
Indoor unit on the right side
Outdoor Unit B
25
Piping System
144 (12RT) 168 (14RT)
1-1/8(28.6) 1-1/8(28.6)
7/8(22.2) 7/8(22.2)
1/2(12.7) 1/2(12.7)
Outdoor Unit A
b
c
To Indoor Unit
Manifold Pipe
192 (16RT)
1-1/8(28.6)
7/8(22.2)
5/8(15.88)
a