(2)Removing the corner cover and indicator cover

a)While lightly pressing the cen- ter of the corner cover, pull up the tab for the screw hole. Use the same procedure to remove the indicator cover. (Fig. 6-16)

Corner cover

Indicator cover

1 Press

2 Pull up

Fig. 6-16

3-6-2. Installing the Ceiling Panel

(1)Hang the temporary latches on the inside of the ceil- ing panel to the receptacle on the unit to temporarily attach the ceiling panel in place. (Fig. 6-17)

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.

(2)Align the panel installation holes and the unit screw holes. (Fig. 6-18)

(3)Tighten the supplied special screws at the 4 panel installation locations so that the panel is attached tightly to the unit.

Check that the wiring connectors are not caught between the unit and the ceiling panel.

(4)Check that the panel is attached tightly to the ceiling. (Fig. 6-19)

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.

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.

CAUTION

If the screws are not sufficiently tightened,

If a gap remains between the ceiling

trouble such as that shown in the figure

surface and the ceiling panel even

below may occur. Be sure to tighten

after the screws are tightened,

the screws securely.

adjust the height of the unit again.

Air leakage

 

Air leakage from

 

ceiling surface

 

Staining

Adjust so that there are no gaps.

 

Condensation, water leakage

 

 

Fig. 6-20

Temporary latches

Temporary latch

Fig. 6-17

Refrigerant tubing joint

Drainage check

 

 

 

 

Ceiling panel

 

REF.PIPE mark

DRAIN mark

Panel installation hole

(4 locations)

Special screws

Fig. 6-18

 

Do not allow

Indoor unit

gaps

Ceiling surface

Ceiling panel

Fig. 6-19

The height of the unit can be adjusted from the ceiling panel corner hole, with the ceiling panel attached, to an extent that does not affect the unit levelness,

the drain hose, or other elements.

10

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Panasonic CS-MKE12NB4U, CS-MKE9NB4U, CZ-18BT1U Installing the Ceiling Panel, Indoor unit Gaps Ceiling surface Ceiling panel

CZ-18BT1U, CS-KE18NB4UW, CS-MKE12NB4U, CU-3KE19NBU, CU-4KE24NBU specifications

The Panasonic CS-KE18NB4UW and CU-KE12NK1, along with the CS-KE12NB41, CZ-18BT1U, and CU-KE18NKU, represent a suite of advanced air conditioning solutions built with cutting-edge technologies designed to provide optimal comfort, energy efficiency, and air quality in various settings.

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