3
INSTALLATION OF INDOOR UNIT
1. Hanging down of indoor unit
Refer to installation figures of hanging material and
hanging bolt.
• Adjustment of hanging bolt length and nut
position
Adjust hanging bolt length and nut position as
shown in the figure before hanging down the
indoor unit.
• Using the level vial, etc., set the horizontal level
of the main unit within 5mm.
Considering pipe/wire connecting work inside the ceiling after the indoor unit has been hanged, select an installation
place and determine piping direction.
• If the ceiling has been already set, prepare refrigerant pipe, drain pipe, connecting wire, switch panel cord, etc. at
the place where pipe and wire are connected before hanging the main unit.
Mounting of clamp (Accessory)
In order to avoid falling of the air filter, be sure to mount the attached clamps with stepped screws.
(561BT : 2, 801BT to 1401BT : 4)
• Clamp mounting
Stepped screw
1) Required those other than M10 flat washer at site.
2) To prevent falling-off of bolt (safety), be sure to set
it just under the hanging bracket as shown in the
figure.
• Removal of air filter
Clamp
7
Hanging bolt
(W3/8 or M10)
Nut
(W3/8 or M10)
Nut
(W3/8 or M10)
Pull out filter downward
while holding the frames.
1)
M10 flat washer
(Accessory)
2)
M10 flat washer
(Accessory)