Preparation For Suspending; Suspending The Indoor Unit; Placing The Unit Inside The Ceiling - Panasonic S-12MU1U6 Installation Instructions Manual

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4-Way Cassette 60 × 60 Type (Y1 Type)

3-8. Preparation for Suspending

This unit uses a drain pump. Use a level gauge to check
that the unit is level.

3-9. Suspending the Indoor Unit

(1) Fix the suspension bolts securely in the ceiling using
the method shown in the diagrams, by attaching them
to the ceiling support structure, or by any other
method that ensures that the unit will be securely and
safely suspended. (Fig. 3-29)
(2) Follow the diagram to make the holes in the ceiling.
(3) Determine the pitch of the suspension bolts using the
supplied full-scale installation diagram. The diagram
shows the relationship between the positions of the
suspension fi tting, unit, and panel. (Fig. 3-30)

3-10. Placing the Unit Inside the Ceiling

(1) When placing the unit inside the ceiling, determine the
pitch of the suspension bolts using the supplied full-
scale installation diagram. (Fig. 3-31)
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 position for
connection to the unit before placing the unit inside
the ceiling.
(2) The length of suspension bolts must be appropriate
for a distance between the bottom of the bolt and the
bottom of the unit of more than 19/32" as shown in the
diagram. (Fig. 3-31)
(3) Thread the 3 hexagonal nuts and 2 washers (fi eld
supply) onto each of the 4 suspension bolts as shown
in the diagram. 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.
(Fig. 3-32)
(4) Adjust so that the distance between the unit and the
ceiling bottom is 33/64" to 45/64". Tighten the nuts on
the upper side and lower side of the suspension lug.
(Fig. 3-32)
(5) Remove the protective polyethylene used to protect
the fan parts during transport.
VRF_Indoor_US.indb 17 VRF_Indoor_US.indb 17
Hole-in-anchor
Hole-in-plug
Suspension bolt (M10 or 3/8")
(fi eld supply)
23-5/8"
Ceiling opening dimensions
21-1/32" Suspension bolt pitch
22-41/64"
2-3/32" 6-19/64"
Power supply port
Refrigerant tubing joint
(liquid side)
ø1/4 (fl ared)
Full-scale installation diagram
Supplied bolt
(printed on top of container box)
Nuts and washers
(used for upper and lower)
Double nut
17
Concrete Insert
Fig. 3-29
Drain tube
connection port
6-11/16"
(outer dia ø1-1/32")
Fig. 3-30
Fig. 3-31
Suspension bolt
Suspension lug
Notch
33/64" – 45/64"
Fig. 3-32
2011/09/30 12:22:58 2011/09/30 12:22:58