1
1-11-1-2-6
Fix the Indoor Unit
Horizontal Installation
Depending on the ceiling type:
a) Insert suspension bolts
or
b) Use existing ceiling supports or construct a suitable
support.
Hole-in-anchor
Hole-in-plug
Concrete
Insert
Suspension bolt (M10 or 3/8")
(field supply)
a)
Ceiling tiles
Ceiling support
b)
(3) Thread the 3 hexagonal nuts and 2
washers
(field supply) onto each of the 4 suspension bolts. Use
1 nut and 1 washer for the upper part, and 2 nuts and
1 washer for the lower part, so that the unit will not fall
off the suspension lugs.
WARNING
It is important that you use extreme care in supporting
the indoor unit inside the ceiling. Ensure that the
ceiling is strong enough to support the weight of the
unit. Before hanging the unit, test the strength of each
attached suspension bolt.
(1) When placing the unit inside the ceiling, determine the
pitch of the suspension bolts referring to the
dimensional data as shown in the tables and diagrams
under the section 3-1. on page 1-11-1-2-2.
Tubing must be laid and connected inside the ceiling
when suspending the unit. If the ceiling is already
constructed, lay the tubing into position for connection
to the unit before placing the unit inside the ceiling.
(2) Screw in the suspension bolts allowing them to protrude
from the ceiling. (Cut the ceiling material, if necessary.)
Nuts and washers
(use for upper and lower)
Suspension lug
Double nuts
Suspension bolt
Notch
Suspension bolt
Double nuts
Hexagonal nut
This shows an example of installation.
Air outlet duct
Bolt anchor
Suspension bolt
Ceiling material
Air outlet grille
Indoor unit
Vertical Installation
To prevent overturning, fasten the unit to the wall securely.
Check to make sure the wall can endure 5 times of weight
of the unit. Ensure to fix the unit.
In order to suppress vibrations, provide he spacer between
tthe unit and the wall.
Fasten the hanging brackets and bolts using by the hexagon
nuts and washers.
Check to make sure the unit is installed in a horizontal
position by using a level.
Water leakage may occur if the unit is not installed
horizontally.
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