Hitachi RCI-1.0FSN3 Service Manual page 134

3 Piping work and
refrigerant charge
N O T E
For RPK-(0.8-1.5)FSN(H)3M, it is recommended to connect the piping at the right rear side of the body to avoid the
sound from the refrigerant running through.
Model
RPK-(0.8-1.0)FSN(H)3M 45
RPK-1.5FSN(H)3M 45
RPK-(2.0-4.0)FSN3M 42
Fix the fixing plate for pipes (accessory) as shown in the figure below.
Models
RPK-(0.8-1.5)FSN(H)3M
RPK-2.0FSN3M
RPK-(2.5-4.0)FSN3M

Drain pipe installation
N O T E
The normal direction for connecting the drain hose is on the right side (when the unit is seen from the outlet grille
side). The connection can be made from the left side or from the rear if there are construction elements of the
building around it.
122
SMGB0077 rev.0 - 01/2013
Unit: mm
Liquid piping
a b c Ød
638 107 Ø65
657 107 Ø65
951 141 Ø80
Fix the fixing plate onto
upper and lower catches.
Fixing Plate
(only for 2.0 to 4.0HP)
Gas pipe mm (inches)
Refrigerant and drain pipe connection
Refrigerant and drain
φ d
pipe connection
Catches
Ø12.70 (1/2)
Ø15.88 (5/8)
Ø15.88 (5/8)
Exterior contour for indoor unit
b
Liquid pipe mm (inches)
Ø9.52 (3/8) (FSNH3M)
Ø6.35 (1/4) (FSN3M)
Ø6.35 (1/4)
Ø9.52 (3/8)
φ d
c