Hitachi RCI Service Manual page 115

3 Piping work and
refrigerant charge
Models
RPIM(0.8–1.5)FSN2E
N O T E
When installing the pipes, leave enough space for maintenance work in the electrical box of the unit.
Dimensions of the flare and thickness of the copper pipe
Nominal diameter
mm inches
Ø6.35 1/4
Ø9.53 3/8
Ø12.70 1/2
Ø15.88 5/8
Dimensions of the flare nuts for flared connections
Nominal diameter
mm inches
Ø6.35 1/4
Ø9.53 3/8
Ø12.70 1/2
Ø15.88 5/8
¿ Drain pipe installation
The correct position for the drain hose connection is shown below.
N O T E
Do not install gas refrigerant pipes at the access to the
electrical box and the drain hose. Install in line with the two
possibilities shown in the figure.
103
SMGB0063 rev. 1 - 10/2010
Gas pipe mm (inches)
Ø12.70 (1/2)
Thickness Measurement A
mm
0.4 mm
0.80 9.1
0.80 13.2
0.80 16.6
1.00 19.7
Measurement B mm
17
22
26
29
Drain pipe
Liquid pipe mm (inches)
+ 0
/
-
1
Ø6.35 (1/4)
2
3