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(iii) Installation of indoor unit
Installation
Adjustment for horizontality
䡩 Either use a level vial, or adjust the level according to the method below.
䡩 If the unit is not leveled, it may cause malfunctions or inoperation of the float switch.
(iv) Duck Work
A corrugated board (for preventing sputtering) is attached to the main body of the air conditioner (on the outlet port). Do not
remove it until connecting the duct.
q The air conditioner main unit does not have an air filter. Incorporate it into the easy-to-clean suction grille.
w Blowout duct
● The ducts should be at their minimum lengths.
● Keep the bends to a minimum. (The bending radius should be as large as possible.)
● Conduct the duct work before ceiling attachment.
e Suction duct
● Make sure to insulate the duct to prevent dewing on it.
r Location and form of blow outlet should be selected so that air from the outlet will be distributed all over the room, and
equipped with a device to control air volume.
t Make sure provide an inspection hole on the ceiling. It is indispensable to service elecric equipment, motor, functional
components and cleaning of heat exchanger.
!
●
Adjust so the bottom side of the unit will be leveled with the water surface as illustrated below.
Pipe side
Pour water
Water
surface
0~5mm
Vinyl hose
Let the pipe side be slightly sloped.
Bad example Bad example Good example
Air conditioner main unit
Ceiling suriace
Suction grille
(Locality)
Suction grille
(option)
Suction hole
(marketed item)
(with air filter)
Inspection hole
Suction duct
(marketed item)
Blow outlet
Blowout duct
(optional or marketed item)
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