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2-3. Placing the Unit Inside the Ceiling
(1)
When placing the unit inside the ceiling, deter-
mine the pitch of the suspension bolts using the
supplied full-scale installation diagram. (Fig. 2-4)
The size of the opening for the indoor unit can be
confirmed by attaching the full-scale installation
diagram beneath the unit. (Fig. 2-4)
Tubing and wiring must be laid inside the ceiling
when suspending the unit. If the ceiling is already
constructed, lay the tubing and wiring into posi-
tion for connection to the unit before placing the
unit inside the ceiling.
(2)
The length of suspension bolt must be appropri-
ate for a distance between the bottom of the bolt
and the bottom of the ceiling of 15 mm or more
as shown in Fig. 2-4.
(3)
Thread the 2 hexagonal nuts (field supply) and
washers onto the 4 suspension bolts as shown in
Fig. 2-5.
Use 2 sets of nuts and washers (upper and
lower), so that the unit will not fall off the suspen-
sion lugs.
(4)
Remove the protective cardboard used to protect
the fan parts during transport.
(5)
Adjust the distance between the unit and surface
of the ceiling. (48 mm) (Fig. 2-4)
Full-scale installation diagram
(printed on a cardboard packing)
Nuts and washers
(Use above and below)
Double nuts
6
Full-scale installation
diagram
2260_X_I
Fig. 2-4
Suspension bolt
Suspension lug
Upper
Lower
Notch
48 mm
Fig. 2-5
2261_X_I
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