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9. HOW TO INSTALL THE CEILING PANEL
■ 4-Way Air Discharge Semi-Concealed Type
(4WK Type)
Checking the unit position
(1) Check that the ceiling hole is within this range:
860 × 860 to 910 × 910 mm
(2) Use the full-scale installation diagram (from the packaging)
that was supplied with the unit to determine the positioning
of the unit on the ceiling surface. If the positions of the
ceiling surface and unit do not match, air leakage, water
leakage, flap operation failure, or other problems may occur.
CAUTION
● Never place the panel face-down. Either hang it
vertically or place it on top of a projecting object.
Placing it face-down will damage the surface. (Fig. 9-1)
● Do not touch the flap or apply force to it. (Fig. 9-2)
(This may cause flap malfunction.)
A
must be within the range of 12 – 17 mm. (Fig. 9-1)
If not within this range, malfunction or other trouble may
occur.
Main unit
A
Ceiling opening
dimension
Ceiling side
Fig. 9-1
9-1. Before Installing the Ceiling Panel
(1) Remove the air-intake grille and air filter from the ceiling
panel. (Figs. 9-3, 9-4 and 9-5)
a) Remove the 2 screws on the latch of the air-intake
grille. (Fig. 9-3)
b) Slide the air-intake grille catches in the direction shown
by the arrows 1 to open the grille. (Fig. 9-4)
c) With the air-intake grille opened, remove the grille
hinge from the ceiling panel by sliding it in the direction
shown by the arrow 2. (Fig. 9-5)
Screws
Latch
Fig. 9-3
Big_PAC_eng.indb 42
Big_PAC_eng.indb 42
Wing
Fig. 9-2
Air-intake grille
Ceiling panel
1
1
Air-intake
grille hinge
Fig. 9-4
2
Fig. 9-5
(2) Removing the corner cover
a) Slide the corner cover to the direction shown by the
arrow 1 to remove the corner cover. (Fig. 9-6)
Corner cover
Corner cover
Strap
9-2. Installing the Ceiling Panel
The power must be turned ON in order to change the flap
angle. (Do not attempt to move the flap by hand. Doing so may
damage the flap.)
(1) Insert the temporary fasteners (stainless steel) on the
inside of the ceiling panel into the square holes on the unit
to temporarily fasten the ceiling panel in place. (Fig. 9-7)
Square hole in unit
Push when
you remove
Temporary fastener
●
The ceiling panel must be installed in the correct direction
relative to the unit. Align the REF. PIPE and DRAIN marks
on the ceiling panel corner with the correct positions on the
unit.
●
To remove the ceiling panel, support the ceiling panel while
pressing the temporary fasteners toward the outside.
(Fig. 9-7)
(2) Align the panel installation holes and the unit screw holes.
(3) Tighten the supplied washer head screws at the 4 panel
installation locations so that the panel is attached tightly to
the unit. (Fig. 9-8)
Ceiling
panel
Washer head screws
42
Push
Ceiling panel
1
Fig. 9-6
Temporary fastener
Fig. 9-7
Drain tubing corner
Refrigerant tubing
corner
DRAIN
mark
Panel installation
hole (4 locations)
REF. PIPE mark
Fig. 9-8
2009/08/26 16:33:17
2009/08/26 16:33:17
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