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3.2. Installation dimensions
Provide a service access for inspection purposes.
Do not place any wiring or illumination in the service space, as they will impede service.
Installation Dimensions
Strong and durable ceiling
Left
side
150 mm
or more
20 mm or more
20 mm or more
Service access
Adjust the wind direction in the room depending on the shape of blow out opening.
[Top view]
3.3. Installing the unit
Install the air conditioner in a location which can withstand a load of at least 5 times the
weight of the main unit and which will not amplify sound or vibration. If the installation
location is not strong enough, the indoor unit may fall and cause injuries.
If the job is done with the panel frame only, there is a risk that the unit will come loose.
Take care.
3.3.1. Unit installation example
Connect the locally purchased duct.
(1) Inlet side
• Connect the duct to the locally purchased inlet flange.
• Connect the flange to the body with the locally purchased tapping screws.
• Wind the inlet flange connecting to the duct with the aluminum tape etc. to avoid the air
leakage.
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 flange.
• Wind the outlet flange connecting to the duct with the aluminum tape etc. to avoid the air
leakage.
• Insulate the duct to avoid the dew condensation.
En-5
Indoor unit
400 mm
or more
300 mm or more
Ceiling
Floor
Service space
400 mm or
more
Air
Indoor unit
Air
Service access
WARNING
CAUTION
Check that duct work does not exceed the range of external static pressure of equip-
ment.
Make sure to insulate ducts to avoid the dew condensation.
Make sure to insulate between ducts and walls if metal ducts are used.
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
Right
removed without tools.
side
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.
• ARXD004/005/007/009/012/014/018 Model
Set the static pressure outside the unit to 90 Pa or less
(the allowable range is between 0 and 90 Pa).
• ARXD024 Model
Set the static pressure outside the unit to 50 Pa or less
(the allowable range is between 0 and 50 Pa).
• ARXP009/012/014 Model
Set the static pressure outside the unit to 25 Pa or less
(the allowable range is between 0 and 25 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.
Side Inlet - Side Outlet
Thermal insulation (locally purchased)
Air
Side Inlet - Side Outlet (Duct)
Thermal insulation (locally purchased)
Aluminum tape
Flange (locally purchased)
Air
Duct
(locally purchased)
Bottom Inlet - Side Outlet
Air
Intake grille (locally purchased)
CAUTION
AR004/005/007/009/012/014
AR018
AR024
Screw
Cover
Aluminum tape
Flange (locally purchased)
Intake grille
Duct
(locally purchased)
(locally purchased)
Flange (locally purchased)
Aluminum tape
Intake grille
(locally purchased)
Duct (locally purchased)
Air
Model
Screw
9
11
13
Fan guard
Air
Tapping screw for flange
connection (M4 x 10 mm/
locally purchased)
Air
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