Refrigerant Piping; Piping Connection - Hitachi RPIM-0.8FSN2E Installation Manual

3. REFRIGERANT PIPING

3.1. PIPING CONNECTION

Access to the refrigerant Pipes connections by removing the
Fan cover from the unit.
The location of refrigerant pipes connection is the following:
(Detail of A)
Gas Piping
Liquid Piping
Liquid Piping
Gas Piping
REFRIGERANT PIPING
Size of piping connection
Model RPIM Pipe size
Gas Piping Ø 12.7 (1/2")
Liquid Piping Ø 6.35 (1/4")
Flare Pipe Dimensions
Nominal
d A
Diameters
1/4" 6.35
3/8" 9.53
1/2" 12.7
5/8" 15.88
Flare Nut Dimensions
Nominal Outer
Diameters Diameters
1/4" 6.35
3/8" 9.53
1/2" 12.70
5/8" 15.88
Thickness of Copper Pipes
Nominal
Outer Diameters
Diameters
1/4" 6.35
3/8" 9.53
1/2" 12.7
5/8" 15.88
3
5
(mm)
(mm)
+0/-0.4
9.1
13.2
16.6
19.7
(mm)
B
17
22
26
29
(mm)
Thickness
0.80
0.80
0.80
1.00