– 12 –
Opening a ceiling and
installation of hanging bolts
• Decide on the installation position and orientation of
the indoor unit while factoring in “Selection of
installation place” in this manual and the piping and
wiring work to be performed after the indoor unit has
been suspended from the ceiling.
• 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).
How to use the installation pattern
(accessory)
<For existing ceiling>
Use the installation pattern to position 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.
• Screw down the installation pattern on the ceiling
panel mounting area of the indoor unit hanging
fixtures. (Use the pattern fastening screws: M5 × 16
(accessory).)
• When hanging a ceiling, open the ceiling along the
outside dimensions of the installation pattern.
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.
• Cut and remove the ceiling foundation.
• Reinforce the cut surface of ceiling foundation, and
add ceiling foundation for fixing the end of ceiling
board.
Installation of hanging bolt
Use M10 or W3/8 hanging bolts (4 pcs, locally
procured). Matching to the existing structure, set pitch
according to size in the unit external view as shown
below.
Hanging bolt
M10 or W3/8
4 pieces
Nut
M10 or W3/8
12 pieces
Indoor
unit
Use the pattern fastening screws: M5 × 16 (Accessory).
(These screws are used only to fasten the installation
pattern. When mounting the ceiling panel, use the special-
purpose mounting screws provided with the ceiling panel
(sold separately).)
Installation pattern (accessory)
New concrete slab
Install the bolts with insert brackets or anchor bolts.
Steel flame structure
Use existing angles or install new support angles.
Existing concrete slab
Use a hole-in anchors, hole-in plugs, or a hole-in bolts.
Rubber
Anchor bolt
(Blade type
bracket)
(Slide type
bracket)
(Pipe hanging
anchor bolt)
Hanging bolt
Hanging bolt
Support angle
Installation of indoor unit
• Attach a nut (M10 or W3/8: locally procured) and the
Dia.34 washer (supplied) to each hanging bolt.
• Insert a washer on both sides of the T groove of the
hanging bracket of the indoor unit, and hang the
indoor unit.
• Check that the four sides of the indoor unit are level
using a level vial.
• Detach the installation gauge (accessory) from the
installation pattern.
• Use the installation gauge to check and adjust the
relative positions of the indoor unit and the ceiling
opening as well as the suspension height.
(Orientation of the installation gauge is printed on the
gauge.)
(1) Check that the bottom panel of the indoor unit is
positioned 77 mm higher than the bottom surface
of the ceiling panel. (All four corners)
(2) Check that the clearance between the outlet side
(shorter side) of the indoor unit and ceiling panel
is 25 mm.
(3) Check that the clearance between the outlet side
(longer side) of the indoor unit and ceiling panel
is 74 mm.
CAUTION
CAUTION
Before installing an indoor unit, be sure to remove the
tape securing the fan and the bell mouth for UP007 to
UP015 models and the tape securing the fan case for
UP036 to UP056 models. Running the unit without
removing the tape may damage the fan motor.
Installation of ceiling panel
(sold separately)
Install the ceiling panel according to the Installation
Manual attached with it after piping / wiring work has
completed.
To install the ceiling panel, follow the instructions
provided with the panel.
Check that installation of indoor unit and ceiling
opening part is correct, and then install it.
CAUTION
CAUTION
Joint the connecting sections of ceiling panel, ceiling
surface, ceiling panel and indoor unit closely.
Any gap between them will cause air leakage and the
generate condensation or water leakage.
Installation of remote
controller (sold separately)
For installation of the remote controller, follow the
Installation Manual attached with the remote controller.
• Do not leave the remote controller at a place
exposed to the direct sunlight and near a stove.
• Install the remote controller after operating it and
checking that the indoor unit can sense its signals
properly. (Wireless type)
• Keep the remote controller at least one meter away
from a TV set, radio or other devices. (Otherwise, the
picture may be disrupted or the noise may affect the
sound.) (Wireless type)
Nut
(M10 or W3/8)
Hanging bolt
(M10 or W3/8)
Procure hanging bolts and
nuts locally.
Washer
(M10 × Dia.34, accessory)
Washer
(M10 × Dia.34, accessory)
To prevent the bolt from
falling off (for safety), be
sure to set it just under the
hanging bracket as shown
in the figure.
Nut (M10 or W3/8)
Level vial
Installation gauge
Indoor unit
Ceiling
board
23-EN
24-EN
Summary of Contents for MMU-UP0071WH-E
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