Toshiba MMU-UP YHP-E Series Installation Manual page 11

„ Opening a ceiling and
installation of hanging bolts
y Consider the piping / wiring after the unit is hung
when determining the location of the indoor unit
installation and orientation.
y After the location of the indoor unit installation
has been determined, open the ceiling and install
hanging bolts.
y The dimensions of the ceiling opening and hanging
bolt pitches are given in the outline drawing and the
attached installation pattern.
y 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 M10 or W3/8 4 pieces
Nut M10 or W3/8 12 pieces
Using 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.
y After the hanging bolts have been installed, install
the indoor unit.
y Hook the four holes in the installation pattern to the
panel fixing screws of the indoor unit.
y When hanging a ceiling, open the ceiling along the
outside dimensions of the installation pattern.
Indoor unit
Panel fixing screw
Installation pattern (Accessory)
Hole
19-EN
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, locally procured).
Matching to the existing structure, set pitch according
to size in the unit external view as shown below.
New concrete slab
Install the bolts with insert brackets or anchor bolts.
Rubber
Anchor bolt
(Blade type
(Slide type
(Pipe hanging
bracket) bracket)
anchor bolt)
Steel frame structure
Use existing angles or install new support angles.
Hanging bolt
Support angle
Hanging bolt
Existing concrete slab
Use a hole-in anchors, hole-in plugs, or a hole-in bolts.
Installation of ceiling opening and
‹
hanging bolt
Hanging bolt
Level vial
Hanging bracket
y Attach a nut (M10 or W3/8: not supplied) and the
Ø34 washer (supplied) to each hanging bolt.
y Insert a washer on both sides of the T groove of the
hanging bracket of the indoor unit, and hang the
indoor unit.
y Check that the four sides of the indoor unit are level
using a level vial (levelness: 5 mm or less).
y Detach the installation gauge (accessory) from the
installation pattern.
y Using the installation gauge, check and adjust the
positional relation between the indoor unit and the
ceiling opening.
(How to use the installation gauge is printed on the
gauge.)
* Procure hanging bolts
and nuts locally.
Hanging bolt
(M10 or W3/8)
Washer (Accessory)
Nut (M10 or W3/8)
To prevent the bolt from
falling off (for safety), be
sure to set it just under
the hanging bracket as
Eccentric washer
shown in the figure.
(Accessory)
* Install with the
marking "UP"
Nut (M10 or W3/8)
facing up.
– 10 –
Hanging bolt
Level vial
(levelness: 5 mm or less)
Indoor unit
30 mm 20 mm
Hanging bracket
Ceiling
board
Installation gauge
Installation gauge
(Outlet side)
(Inlet side)
20-EN