2 Unit installation
Optional accessories
SMGB0099 rev.0 - 12/2016
86
Prepare the square connection duct (field-supplied) or use a flexible duct with a diameter of 150 or 200 mm (according to
the indoor unit model)
Non connectable
Connectable
Connectable
Duct connection dimensions
Model
Units
a
b
c
d
PDF-71C1
RCI-(1.0-2.5)FSN4
150
180
36
246
PDF-160C1
RCI-(3.0-6.0)FSN4
200
205
33
296
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-160LS1
RCI-(1.0-6.0)FSN4
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 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 place of
installation or use the dimensions indicated in the figure below if
there are no applicable regulations.
Main body
Measurement
Wall and pillar material
Combustible materials
Non-combustible materials
A
≥ 100 mm
≥ 50 mm
B
≥ 100 mm
≥ 60 mm
