En-5
(2) Leveling
Base horizontal direction leveling on top of the unit.
Ceiling
Level
GOOD
PROHIBITED
3/8 (10) or less
Level
Air
GOOD
PROHIBITED
3/8 (10) or less
Unit: in (mm)
CAUTION
Leave a space of 3-15/16 in (100 mm) or more between the inlet port and the ceiling.
Fasten the unit securely with Special nuts A and B.
3.5. Installing 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.
3.5.1. 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 the aluminum tape etc. to avoid the air
leakage.
CAUTION
When the duct is connected to inlet side, remove contained filter and surely attach lo-
cally purchased filter 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.
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.
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.
Set the static pressure outside the unit to 0.36 in WG (90 Pa) or less (the allowable
range is between 0 and 0.36 in WG (0 and 90 Pa)).
3.4.2. Install the filters
•
Install the filters to the unit.
Filter (accessories)
Unit
Filter
3.4.3. Drilling holes for bolts and installing the bolts
•
Using the installation template, drill holes for bolts (4 holes).
Drilling position
for bolts
Installation template
Unit: in (mm)
A
Air
14-13/16 (377)
AR7/9/12/14
AR18
A
28-7/8 (734)
36-3/4 (934)
3.4.4. Fix the unit
(1) Hang the unit
Hanger bolt
Nut A
(locally
purchased)
Nut B
(locally
purchased)
Washer
(accessories)
Hanger
Hanger bolt
Nut A
(locally
purchased)
Washer
(accessories)
Nut B
(locally
purchased)
Unit
Hanger
13/16
(20)
length
Cover
Unit: in (mm)
* It might become difficult to open and shut the Cover/control box cover when the length
exceeds 13/16 in (20 mm) length.
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