En-4
3.3A.1. UNIT INSTALLATION EXAMPLE (CEILING
CONCEALED TYPE)
Connect the locally purchased duct.
(1) Inlet side
• Connect the duct to the locally purchased inlet
fl
ange.
• Connect the
fl
ange to the body with the locally purchased tapping screws.
• Wind the inlet
fl
ange connecting to the duct with the aluminum tape etc. to avoid the
air leakage.
CAUTION
When the duct is connected to inlet side, remove contained
fi
lter and surely attach
locally purchased
fi
lter at inlet opening.
(2) Outlet side
• Connect the duct with adjusting inside of outlet
fl
ange.
• Wind the outlet
fl
ange connecting to the duct with the aluminum tape etc. to avoid the
air leakage.
• Insulate the duct to avoid the dew condensation.
CAUTION
Check that duct work does not exceed the range of external static pressure of
equipment.
Make sure to insulate ducts to avoid the dew condensation.
Make sure to insulate between ducts and walls if metal ducts are used.
Please explain handling and washing methods of locally purchased materials to the
customer.
To prevent people from touching the parts inside the unit, be sure to install grilles on
the inlet and outlet ports. The grilles must be designed in such a way that cannot be
removed without tools.
When connecting the duct to the outlet port of the indoor unit, be sure to insulate the
outlet port and the installation screws to prevent water from leaking around the port.
AR07/09/12/14/18 Model
Set the static pressure outside the unit to 90 Pa or less (the allowable range is
between 0 and 90 Pa).
AR24 Model
Set the static pressure outside the unit to 50 Pa or less (the allowable range is
between 0 and 50 Pa).
Replace the cover as follows.
• Remove the screws, and then remove cover and fan guard.
• Install the cover with the screws as shown in the illustration below.
Model
Screw
AR07/09/12/14
9
AR18
11
AR24
13
screw
Cover
Fan guard
Side Inlet - Side Outlet
Insulation material (Field supply)
Aluminum tape
Flange (Field supply)
Air
Duct
(Field supply)
Air
Intake grille
(Field supply)
Side Inlet - Side Outlet (Duct)
Insulation material (Field supply)
Aluminum tape
Aluminum tape
Tapping screw for
fl
ange
connection (M4 x 10mm/
Field supply)
Flange (Field supply)
Flange (Field supply)
Air
Duct
(Field supply)
Air
Intake grille
(Field supply)
Bottom Inlet - Side Outlet
Duct (Field supply)
Intake grille (Field supply)
Air
Air
Outlet side
A
25
25
19
198
Inlet side
B
109
P200
130
35
15
70
11
11
AR07/09/12/14
AR18
AR24
A
650 mm
850 mm
1050 mm
B
P200×2=400 mm
P200×3=600 mm
P200×4=800 mm
9374342273-01_IM.indb Sec1:4
9374342273-01_IM.indb Sec1:4
7/12/2012 10:18:58 AM
7/12/2012 10:18:58 AM
