Placing The Unit Inside The Ceiling - Panasonic S-12MU1U6 Installation Instructions Manual

3-15. Placing the Unit Inside the Ceiling

CAUTION
(1) Use the supplied M5 or 3/16" screws (4) to attach the
full-scale installation diagram to the indoor unit
suspension lugs, in order to obtain the ceiling opening
dimensions for suspending the unit. (Fig. 3-56)
Caution: Piping and wiring work must be performed
inside the ceiling after the unit is suspended.
Therefore if the ceiling is already installed, the
wiring and piping work should be completed up
to the connection points prior to suspending the
unit.
(2) Attach the special washers (supplied) and nuts (fi eld
supply) to the suspension bolts (4 locations).
CAUTION
●
Use M10 or 3/8" nuts.
●
The length of the suspension bolts must be such that
there is a space of at least 19/32" below the bottom of
the suspension lugs, as shown in Fig. 3-56. If the
length of the suspension bolts is too long, the bolts
may interfere with the ceiling panel and louver motor,
preventing their installation.
(3) Thread the 3 hexagonal nuts and 2 washers (fi eld
supply) onto each of the 4 suspension bolts as shown
in Fig. 3-59. Use 1 nut and 1 washer for the upper
side, and 2 nuts and 1 washer for the lower side, so
that the unit will not fall off the suspension lugs.
(4) Lift up the indoor unit and fi t the suspension bolts into
the notches in the suspension lugs.
(5) Adjust so that the distance between the bottom of the
indoor unit suspension lugs and the bottom of the
ceiling panel is 25/32-1". Then tighten the nuts above
and below each suspension lug. The full-scale
installation diagram can be used to help adjust the
height of the indoor unit.
VRF_Indoor_US.indb 23 VRF_Indoor_US.indb 23
Be sure to use a level gauge
and confi rm that the unit is
level. If it is not level, water
leakage may occur.
Suspension
lug
25/32 – 1 in.
Fig. 3-56
For fresh air intake
(ø3-15/16 hole) A
Fig. 3-57
6-11/16
Fig. 3-58
Nuts and washers
(Used above and below.)
Double nuts
over 19/32"
Fig. 3-59
23
Full-scale
installation diagram
over 19/32 in.
3-5/32
Unit: in.
For fresh air intake
(ø3-15/16 hole)
A
Unit: in.
Suspension bolt
Suspension lug
Notch
25/32-1"
2011/09/30 12:23:06 2011/09/30 12:23:06