Panasonic S-22MU1E5A Technical Data Manual page 32

3. How to install the indoor unit
3-3-2. Suspending the Indoor Unit
Depending on the ceiling type:
Insert suspension bolts (Fig. 2-41)
•
or
Use existing ceiling supports or
•
construct a suitable support (Fig. 2-42).
1
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
2
support the weight of the unit.
Before suspending 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
3
dimensional data as shown in Fig. 2-39 and Table 2-4.
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.
4
(2) Screw in the suspension bolts allowing them to
protrude from the ceiling (Fig. 2-41).
(Cut the ceiling material, if necessary.)
(3) Thread the 3 hexagonal nuts and 2 washers (field
supply) onto each of the 4 suspension bolts
(Figs. 2-43 and 2-44).
5
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.
6
7
8
9
Hole-in-anchor
Concrete
Hole-in-plug
Suspension bolt (M10 or 3/8")
(field supply)
Fig. 2-41
Nuts and washers
(use for upper and lower)
Double nuts
Suspension bolt
Hexagonal nut
This shows an example of installation.
Air outlet duct
Air-outlet grille
2-24
Design of VRF SYSTEM
Insert
Suspension bolt
Suspension lug
Double nuts
Suspension
bolt
Indoor unit
Ceiling material
Ceiling tiles
Ceiling support
Fig. 2-42
Notch
Fig. 2-43
Fig. 2-44
Bolt anchor
Fig. 2-45