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 Units Remarks
PI-23LS5 RCI-(2.0-6.0)FSN3Ei To connect to the panel outlet.
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 gure 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 gure
below if there are no applicable regulations.
Measurement
Wall and pillar material
Combustible materials Non-combustible materials
A ≥ 100 mm ≥ 50 mm
B ≥ 100 mm ≥ 60 mm
Outlet air ow 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:
470
440
435
380
40
(30)
(35)
10
63
80
520
17
92
Notches
(4 Portions)
Notch
Standard Width
0.55
Nonwoven
Fabric
Applying
Adhesive
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