Western Airconditioning DBIS-09, User Manual, Page: 12 / 28

10
Installation Instructions
2. Installing the Suspension Bolts
(1) Install the bolts to the ceiling at a place strong enough to hang the unit. Mark the bolt
positions from the installation template. With a concrete drill, drill for 12.7mm (1/2”)
diameter holes. (Fig. 5)
(2) Insert the anchor bolts into the drilled holes, and drive the pins completely into the
anchorbolts with a hammer. (Fig. 6)
(3) Install the hanger to the unit.
(4) Pass the unit hangers over the bolts installed to the ceiling and install the unit with the
special nut. (Fig.7)
3. Horizontal Check of the Indoor Unit
After the installation of the indoor unit, its horizontal must be checked to make sure the
unit keep horizontal fore and aft and keep an inclination of 1° toward the drain pipe right
and left, as show in Fig.8.
Nut with washer
Flat shim
Nut
Spring
shim
Fig.5 Fig.6
Fig.7
60-70mm
Fig.8 Horizontal tester