Hitachi RCIM-1.0FSN2 Installation Manual

3
REFRIGERANT PIPING
3
NOTE:
- If a false ceiling has already been installed, complete all
piping and wiring work inside the ceiling before hooking-
up the indoor unit.
- Secure the indoor unit using the nuts and flat washers.

Space Adjusting Between Indoor Units and
False Ceiling Opening
- Check the level of the drain pan by a water level to avoid
incorrect operation of the drain discharge mechanism in
the indoor unit.
- Tighten the nuts of the suspension brackets after the
adjustment is completed. Apply LOCK-TIGHT paint to the
bolts and nuts in order to prevent them from loosening. If
not done, abnormal noises or sounds may occur and the
indoor unit may come loose.
- Adjust the indoor unit to the correct position by checking
with the pattern for installation.
(mm)
1. For ceiling already completed with panels.
3 REFRIGERANT PIPING
3.1. PIPING CONNECTION
3.1.1. PIPING POSITION
Piping connection position is the following, which is
available from all directions, top, left or right.
(mm)
3.1.2. PIPING CONNECTION SIZE

Piping size
mm (in)
Model RCIM 1.0/1.5 2.0
O
Gas Piping 12.70 (1/2) 15.88 (5/8)
P
Liquid Piping 6.35 (1/4) 6.35 (1/4)

Flare Pipe Dimensions
(mm)
Nominal
Diameters
Outer
Diameters
A
+0/-0.4
1/4 6.35 9.1
3/8 9.53 13.2
1/2 12.70 16.6
5/8 15.88 19.7
 Thickness of Copper Pipes
(mm)
Nominal
Diameters
Outer
Diameters
Thickness
1/4 6.35 0.80
3/8 9.53 0.80
1/2 12.70 0.80
5/8 15.88 1.00
 Flare Nut Dimensions
(mm)
Nominal
Diameters
Outer
Diameters
B
1/4 6.35 17
3/8 9.53 22
1/2 12.70 26
5/8 15.88 29
Suspension bolts (4)
Suspension Bracket
Electrical Box
Indoor Unit
Indoor Unit
A
ttach this side of
the scale to the
ceiling Panel
A
ttach this side of the scale to the
lower side of the unit
Check the height of the
ceiling at each corner of
the unit
Checking
Scale
A
ttach this side of the scale to the inner
side of the opening of the ceiling
A
ttach this side
of the scale to
the outer side
of the unit
Indoor Unit
Checking
Scale
Ceiling
panel
Check the dimension
of opening at each
side of the unit
P
O
Liquid Piping
Gas Piping
Unit Body
Gas Piping
Liquid Piping
Liquid Piping Gas Piping
Unit Body
Gas Piping
Liquid Piping

Hitachi RCIM-1.0FSN2 Specifications

General

Brand	Hitachi
Model	RCIM-1.0FSN2
Category	Air Conditioner
Language	English