6
English
(3) Use suspension bolts for installation. Check whether the ceiling is strong enough to support the
weight of the unit or not. If there is a risk, reinforce the ceiling before installing the unit.
(Installation pitch is maked on the paper pattern for installation. Refer to it to check for points requiring
reinforcing.)
4. PREPARATIONS BEFORE INSTALLATION
(1) Relation of ceiling opening to unit and suspension bolt position.
NOTE
• Installation is possible with a ceiling dimension of 660 mm (marked with *). However, to achieve a ceiling-
panel overlapping dimension of 20 mm, the spacing between the ceiling and the unit should be 45 mm or
less. If the spacing between ceiling and the unit is over 45 mm, attach ceiling material to
part or
recover the ceiling.
(2) Make the ceiling opening needed for installation where applicable.
(For existing ceilings)
• Refer to the paper pattern for installation (5) for ceiling opening dimensions.
• Create the ceiling opening required for installation. From the side of the opening to the casing out-
let,implement the refrigerant and drain piping and wiring for remote controller (unnecessary for wire-
less type) and wiring between units. Refer to each PIPING or WIRING section.
• After making an opening in the ceiling, it may be necessary to reinforce ceiling beams to keep the ceil-
ing level and to prevent it from vibrating. Consult the builder for details.
Piping
Piping
Piping
Air outlet in
4 directions
Air outlet in
3 directions
Air outlet in
2 directions
[Air flow direction] (Example)
700 (Decoration panel)
585-660 (Ceilimg opening)
575 (indoor unit)
533 (Suspension bolt pitch)
700 (Decoration panel)
585-660 (Ceilimg opening)
575 (indoor unit)
533 (Suspension bolt pitch)
Refrigerant
piping
Suspension
bolt ( 4)
False
ceiling
Hanger
bracket
View as seen from A
(Ceiling opening dimension)
(mm)
(Ceiling-panel overlapping dimension)
585 – *660
(173)
20
A
Fig. 3
Fig. 4
≤
20
≤
Ceiling material
<
45
<
45
Fig. 5
False
ceiling
False
ceiling
(mm)
