Wiring The Ceiling Panel; How To Attach The Corner And Air Intake Grille - Panasonic S-22MU1E5 Installation Instructions Manual

(3) Tighten the supplied washer head screws at the 4 panel
installation locations so that the panel is attached tightly to
the unit. (Fig. 7-19)
Ceiling panel
Washer head screws
(4) Check that the panel is attached tightly to the ceiling.
● At this time, make sure that there are no gaps between the
unit and the ceiling panel, or between the ceiling panel and
the ceiling surface. (Fig. 7-20)
Ceiling surface
● If there is a gap between the panel and the ceiling, leave
the ceiling panel attached and make fine adjustments to the
installation height of the unit to eliminate the gap with the
ceiling. (Fig. 7-21)
Can be installed rotated 90°
CAUTION
● If the screws are not sufficiently
tightened, trouble such as that
shown in the figure below may
occur. Be sure to tighten the
screws securely.
Air leakage
Air leakage from
ceiling surface
Staining
Condensation, water leakage
Refrigerant tubing joint
Drainage check
REF. mark
DRAIN mark
Panel installation hole
(4 locations)
Do not allow
gaps
Main unit
Ceiling panel
● If a gap remains between
the ceiling surface and the
ceiling panel even after the
screws are tightened, adjust
the height of the unit again.
Adjust so that there are no gaps.

7-6. Wiring the Ceiling Panel

(1) Open the cover of the electrical component box.
(2) Connect the 7P wiring connector (red) from the ceiling
panel to the connector in the unit electrical component box.
(Fig. 7-22 )
(Direction that the unit faces has been changed to facilitate
explanation.)
Electrical component box cover
Screws
(3 locations)
Fig. 7-19 * Pass the wiring connector through the clamp to fasten it in
place, as shown in the fi gure.
● If the connectors are not connected, the auto flap will not
operate. Be sure to connect them securely.
● Check that the wiring connector is not caught between the
electrical component box and the cover.
● Check that the wiring connector is not caught between the
unit and the ceiling panel.

7-7. How to Attach the Corner and Air Intake Grille

Fig. 7-20
Attaching the corner cover and air-intake grille
A. Attaching the corner cover
(1) Check that the safety cord from the corner cover is
fastened to the ceiling panel pin.(Fig. 7-23).
Place the corner cover so that the 3 tabs fit into the
holes in the ceiling panel. Then fasten it in place with the
supplied screws.
Fig. 7-21
(2) Use the supplied screws to attach the corner cover to the
ceiling panel.
B. Attaching the air-intake grille
● To install the air-intake grille, follow the steps for Removing
the grille in the reverse order. By rotating the air-intake
grille, it is possible to attach the grille onto the ceiling panel
from any of 4 directions. Coordinate the directions of the air-
intake grilles when installing multiple units, and change the
directions according to customer requests.
● When attaching the air-intake grille, be careful that the
flap lead wire does not become caught.
● Be sure to attach the safety cord to the ceiling panel
unit. This keeps the air intake grille from accidentally
dropping. (Fig. 7-24)
50
Ceiling panel wiring connector
Pin
Fig. 7-22
Fig. 7-23