Toshiba MMU-AP0092H Installation Manual page 10

SMMS 4-way Air Discharge Cassette Type
Opening a ceiling and
installation of hanging bolts
• Consider the piping/wiring after the unit is hung
when determining the location of the indoor unit
installation and orientation.
• After the location of the indoor unit installation
has been determined, open the ceiling and
install hanging bolts.
• The dimensions of the ceiling opening and
hanging bolt pitches are given in the outline
drawing and the attached installation pattern.
• When a ceiling already exists, lay the drain pipe,
refrigerant pipe, indoor unit/outdoor unit
connection wires, and remote controller wires to
their connection locations before hanging the
indoor unit.
Procure hanging bolts and nuts for installing the
indoor unit (these are not supplied).
Hanging bolt
Nut
How to use the installation pattern
(accessory)
The installation pattern is provided inside the
packaging cap.
<For existing ceiling>
Use the installation pattern positioning a ceiling
opening and hanging bolts.
<For new ceiling>
Use the installation pattern to position the ceiling
opening when hanging a ceiling.
• After the hanging bolts have been installed,
install the indoor unit.
• Hook the four holes in the installation pattern to
the panel fixing screws of the indoor unit.
• When hanging a ceiling, open the ceiling along
the outside dimensions of the installation pattern.
Panel fixing
screw
9-EN
M10 or W3/8
M10 or W3/8
Indoor unit
hole
Installation pattern (Accessory)
Treatment of ceiling
The ceiling differs according to structure of
building. For details, consult your constructor or
interior finish contractor.
In the process after the ceiling board has been
removed, it is important to reinforce ceiling
foundation (frame) and to keep horizontal level of
installed ceiling correctly in order to prevent
vibration of ceiling board.
(1) Cut and remove the ceiling foundation.
(2) Reinforce the cut surface of ceiling foundation,
and add ceiling foundation for fixing the end of
ceiling board.
Installation of hanging bolt
Use M10 hanging bolts (4 pcs, to be local
procure). Matching to the existing structure, set
pitch according to size in the unit external view as
shown below.
4 pieces
12 pieces
Install the bolts with insert brackets or anchor bolts.
(Blade type
bracket)
Use existing angles or install new support angles.
Use a hole-in anchors, hole-in plugs, or a hole-in bolts.
– 9 –
Installation Manual
New concrete slab
Anchor bolt
(Slide type
(Pipe hanging
bracket)
anchor bolt)
Steel flame structure
Hanging bolt
Hanging bolt Support angle
Existing concrete slab
Rubber