Installation manual
English 7
Installation is possible when ceiling opening dimensions is as follows
• When installing the unit within the frame for fixing false ceiling.
NOTE
• Installation is possible with a ceiling dimension of 910 mm (marked with *). However, to achieve a ceiling-
panel overlapping dimension of 20 mm, the spacing between the ceiling and the unit should be 35 mm or
less. If the spacing between ceiling and the unit is over 35 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 outlet,
implement the refrigerant and drain piping and wiring for remote controller (unnecessary for wireless
type) and indoor-outdoor unit casing outlet. Refer to “6. REFRIGERANT PIPING WORK”, “7. DRAIN
PIPING WORK” and “8. ELECTRIC WIRING WORK”.
• After making an opening in the ceiling, it may be necessary to reinforce ceiling beams to keep the ceiling
level and to prevent it from vibrating. Consult the builder for details.
(3) Install the suspension bolts.
(Use either a M8~M10 size bolt)
Use a hole-in anchor for existing ceilings, and
a sunken insert, sunken anchor or other field
supplied parts for new ceilings to reinforce
the ceiling to bear the weight of the unit.
Adjust clearance (50 – 100 mm) from the
ceiling before proceeding further.
NOTE
• All the above parts are field supplied.
(Dimension inside frame)
840
910
910
(Dimension inside frame)
840
Fig. 5
860
(Opening dimension inside
the flame for ceiling)
Frame
≥20
860 – *910
(Ceiling-panel
overlapping dimension)
False
ceiling
(Ceiling opening dimension)
≥20
Fig. 6
Ceiling material
35
Fig. 7
≥
35
≥
50 – 100
Ceiling slab
Suspension bolt
Long nut or turn-buckle
Anchor
False ceiling
<installation example>
Fig. 8
01_EN_3P184443-6.fm Page 7 Monday, July 3, 2006 12:04 PM