Placing The Unit Inside The Ceiling - Panasonic S-22MU1E5 Installation Instructions Manual

600
Ceiling opening dimensions
534
Suspension bolt pitch
(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
fitting, the unit, and the panel.
53
Power supply port
Drain tube
575
connection port
160 170
(outer dia ø26)
Refrigerant tubing joint
(liquid side)
ø6.35 (flared)

3-3. 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. 3-4)
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 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 15 mm. (Fig. 3-4)
Unit: mm
Fig. 3-2
Supplied bolt
(3) Thread the 3 hexagonal nuts and 2 washers (field supply)
onto each of the 4 suspension bolts (Fig. 3-5). 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.
Unit: mm
Fig. 3-3
Nuts and washers
(use for upper and lower)
Double nut
(4) Adjust so that the distance between the unit and the ceiling
bottom is 13 to 18 mm. Tighten the nuts on the upper side
and lower side of the suspension lug.
(5) Remove the protective polyethylene used to protect the fan
parts during transport.
10
Full-scale installation diagram
(printed on top of container box)
Suspension bolt
Suspension lug
Notch
13 – 18 mm (Y1 Type)
Fig. 3-4
Fig. 3-5