En-10
Level
Air
CAUTION
Leave a space of 100 mm (3-15/16 in.) or more between the
inlet port and the ceiling.
Fasten the unit securely with Special nuts A and B.
6.2B. Install the unit (Wall mounted type/
Floor standing concealed type)
WARNING
Install the air conditioner in a location which can withstand a
load do 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. Please take care.
6.2B.1. UNIT INSTALLATION EXAMPLE
(Wall mounted type/Floor standing concealed
type)
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 aluminum
tape etc. to avoid the air discharge.
CAUTION
When duct is connected to inlet side, remove filter provided
with unit and attach locally purchased filter at return air grille
or in return duct.
(2) Outlet side
• Connect the duct to outlet flange.
• Wind the outlet flange connecting to the duct with
aluminum tape etc. to avoid the air discharge.
• Insulate the duct to avoid condensation.
CAUTION
Check that duct work does not exceed the range of external
static pressure of equipment.
Make sure to insulate ducts to avoid 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.
AR9/12/18 Model
• Set the static pressure outside the unit to 0.36 in. WG or less
(the allowable range is between 0 and 0.36 in. WG).
AR24 Model
• Set the static pressure outside the unit to 0.2 in. WG or less
(the allowable range is between 0 and 0.2 in. WG).
• Remove the screws, and then remove cover and fan
guard.
• Install the cover with the screws as shown in the illustration
below.
Model
Screw
M5
AR9/12
9
AR18
11
AR24
13
