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Unit Installation – MM-TU Units
Check the dimensions of the unit illustrated in the
following figure. Use the accompanying template for
!
installation and adjust the position of the body of the
unit to the position of the opening on the ceiling.
Secure the cardboard template to the body of the
!
indoor unit with four bolts (M5 x 20mm), supplied with
the ceiling panel.
Installing Ø 10 Hanging Bolts (4 pieces)
G
Install the hanging bolts at the intervals shown in the
following figure.
G
Use ø 10 hanging bolts (to be locally procured).
Ceiling preparation: The actual procedure differs according
GB
to the structure. Consult your builder or whoever was
responsible for the interior of the house/building.
(1) Removal of part of the ceiling plate:
In order to ensure that the ceiling is kept perfectly
horizontal and to prevent the ceiling from vibrating the
ceiling framework must be reinforced;
(2) Cut and remove part of the ceiling framework;
(3) Reinforce the ends of the ceiling framework where it was
cut and add framework to secure the ends.
G
Some piping and wiring connections must be made in the
ceiling after the unit has been suspended. After selecting where
the unit will be installed, decide on the direction of the piping
connection. If the ceiling is already installed, prepare the
refrigerant pipes, drain pipe, indoor to outdoor unit connection
wiring and the remote control cord at the piping and wiring
connection positions before suspending the indoor unit.
How to Install the Hanging Bolts
Installation on a newly installed concrete slab:
Use insert brackets or foundation bolts for the installation.
Knife-shaped
bracket
Installation on an existing concrete slab:
Use hole-in anchors, hole-in plugs or hole-in bolts for the
installation.
Installation on a steel
frame:
Use the angular
bracket in the
structure or install
one for support.
MM-TU Units
Wiring connection
I
NDOOR
Foundation
Sliding
bolt
bracket
(Foundation bolt for
hanging the piping)
Hanger bolt
Hanging
Angular
bolt
bracket for
support
U
L
NIT
OCATION
Installation on a wooden structure:
Place a length of wood of the appropriate size across two
beams and install the hanging bolts onto this length of wood.
Hanging Unit
G
Adjusting the positions of the nuts (lower side) so that
the distance between the washer (lower side) and the
ceiling is 138mm.
G
Hang the nut of
hanger bolt on the
U shape groove in
the body hanger.
G
Check the level of
the body by using
a spirit level.
(1) Check that the distance between the bottom of the indoor unit
and the underside of the ceiling is 3mm (four corners).
(2) Check that the distance between the side of the indoor unit
and the ceiling is 600mm (common to the left and right sides).
(3) Check that the distance between the front side of the indoor
unit (piping side) and the ceiling board is 200mm, and
between the back of the indoor unit and the ceiling is 50mm.
G
Tighten the upper nut and fix the position of the unit.
Precautions
Since the unit contains a drain pump and a float switch, the body
!
must be level.
If the body is installed in a tilted state the float switch will not
!
function properly and thus will cause water leakage.
Reinforcing
bar
No drain socket is fitted to the drain pan on this model. If the drain
!
pan needs to be removed after installation and operation, ensure
that the drain pan is kept level to avoid any water from spilling over.
Installation of Ceiling Panel:
Install the ceiling panel following the installation manual supplied
with it.
Precautions
Before installing the ceiling panel, check that the body of the unit
!
has been installed correctly against the ceiling.
The ceiling panel and ceiling face must contact closely. The ceiling
!
panel and the contact side of the body must contact closely. Any
gap between them will cause air leakage and thus generate
condensation.
Hanger bolt
Drain pipe connection
(4- M10)
(Outer Ø 25.5)
Panel outer dimension 1050
Ceiling opening 1010
Hang bolt pitch 930
840
~ 18 ~
Beam
Cross
length of
Ceiling
wood
Hanging bolt
Hanger
Nut (upper side)
Washer (upper side)
Hanger of body
Washer (lower side)
Nut (lower side)
Ceiling
Refrigerant pipe connection
(Liquid Ø 6.4)
Refrigerant pipe connection
(Gas Ø 12.7)
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