Hitachi RCI-1.0FSN3 Service Manual page 93

2 Unit installation
Fit enough insulation to the connection between the pipe and the main body of the indoor unit and to the connection
between the duct and the pipe.
Use a set of three-way outlet parts (optional parts) and completely block the air outlet on the branched duct side of the
panel (to avoid condensation and direct the air towards the branched duct).
Model
PI-23LS5
The quantity of air from the branched duct side is shown in the table below as the air quantity index of the unit. If two
branched ducts are connected to the unit, the amount of air from the branched duct side will be greater and the speed of
the air on the 3-way outlet side will decrease. Therefore, the hot air projection distance will be reduced.
1 Where the branch duct is installed from this viewpoint, apply
the dimensions indicated in the figure below to avoid accidents.
2 Use ducts with non-combustible insulating materials.
3 Fit enough heat insulation to the duct to avoid condensation.
4 Follow the regulations in force regarding this matter in the pla-
ce of installation or use the dimensions indicated in the figure
below if there are no applicable regulations.
Measurement
A
B

Outlet air flow interlock
For RCI-FSN3 indoor units: PI-160SL1
If only three outlets are necessary, use the PI-160SL1 3-way outlet part set.
The dimensions of the blocking plate and the sheet are:
< Blocking Plate >
470
440
435
380
40
81
SMGB0077 rev.0 - 01/2013
Units
RCI-(2.0-6.0)FSN3Ei
Combustible materials
≥ 100 mm
≥ 100 mm
< Sheet >
(30)
(35)
80
10
Notches Notch
(4 Portions)
Remarks
To connect to the panel outlet.
Wall and pillar material
Non-combustible materials
≥ 50 mm
≥ 60 mm
520
Standard Width
Applying
0.55
Adhesive
Nonwoven
Fabric
2