Sanyo ECO R410A User Manual

Page 17

3-12. Suspending the Indoor Unit

Depending on the ceiling type:

• Insert suspension bolts as shown in the diagram
or
• Use existing ceiling supports or construct a suitable

support as shown in the diagram.

WARNING

It is important that you use
extreme care in supporting
the indoor unit inside the ceil-
ing. Ensure that the ceiling is
strong enough to support the
weight of the unit. Before hang-
ing 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 on the previous page. Tubing must
be laid and connected inside the ceiling when sus-
pending 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 pro-

trude from the ceiling as shown in the diagram. (Cut
the ceiling material, if necessary.)

(3) Thread the 3 hexagonal nuts and 2 washers (field

supply) onto each of the 4 suspension bolts as shown
in the diagram. 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.

(4) Adjust the height of the unit.

(5) Check the unit is horizontally level.

Suspension bolt

Hexagonal nut

Double nuts

Fig. 3-26

CAUTION

●

Make sure the unit is installed level using a level

or a plastic tube filled with water. In using a plastic
tube instead of a level, adjust the top surface of the
unit to the surface of the water at both ends of the
plastic tube and adjust the unit horizontally. (One
thing to watch out for in particular is if the unit is
installed so that the slope is not in the direction of
the drain piping, this might cause leaking.)

(6) Tighten the upper nut.

Fig. 3-28

Fig. 3-27

Fig. 3-25

Fig. 3-24

Level

Vinyl tube

Nuts and washers
(use for upper and lower)

Suspension bolt

Suspension lug

Notch

Double nuts

Ceiling tiles

Ceiling support

Hole-in-anchor
Hole-in-plug

Concrete

Insert

Suspension bolt (M10 or 3/8")