Toshiba Carrier MMD-AP0304H2UL Manuel D'installation page 6

Installation of the indoor unit
All issues related to locating the unit above the ceiling,
hanging the unit from the building structure, routing /
suspending the unit refrigerant piping, routing /
suspending the unit wiring and penetrating the ceiling
for supply and return air connections to the indoor unit
must comply with all applicable codes and regulations.
The indoor unit should be hung above
the ceiling utilizing minimum 3/8" x 16
bolts, or threaded rod (4 pieces required) along with 3/
8" x 16 nuts, 3/8" flat washers and 3/8" lock washers.
All material to be locally procured.
Hanging bolt W3/8" (M10) 4 pieces
Nut W3/8" (M10) 12 pieces
Hanging bolt
M10 flat washer
(W3/8" (M10))
(Accessory)
Nut
(W3/8" (M10))
M10 flat washer
Nut
(Accessory)
(W3/8" (M10))
The unit should be positioned level and plumb without
pitch in any direction. The bolts, or threaded rod should
be attached to the building structure in compliance with
all applicable codes and regulations. The spacing for
the support bolts, or rods should match the dimensions
provided on the unit External dimensions in this
manual.
• Check that four sides are horizontal with a level
gauge. (Horizontal degree: Within 0.2" (5 mm))
9-EN
REQUIREMENT
• Hang the unit in a horizontal position.
When unit is hanged to slant, it may cause overflow of
drainage.
• Install the unit within the dimension according to the
figure below.
• Use level gauge to confirm whether the unit is hang
horizontally.
Side view
Set the drain pipe connecting port
side within 0.2" (5 mm) lower than
opposite side.
Front view
Set the air intake and air discharge
sides are within 0.2" (5 mm) with each
other.
Installation of wired remote
control (sold separately)
For installation of the wired remote control refer to the
instructions that are supplied with the control. The
connection point for the control wiring and the entrance
point for the control wiring are clearly marked in the
instructions.
– 5 –
Duct design
1
In order to prevent short circuits, design the
duct work so that the intake and discharge
openings are not adjacent to each other.
2
The indoor unit does not have a built-in air
filter.
Always install the air filter (Locally procured) in a
location that permits easy maintenance, such as
behind the intake grille. (If no air filter is installed,
dust will collect in the heat exchanger, which may
cause the air conditioner to fail or to leak.)
<Overview of duct connection>
NOTE
Parts except air conditioner unit are to be locally procured.
Canvas joint Canvas joint
(Air conditioner)
Air supply
port
Silencer Check port Air filter
chamber
Silencer
chamber
Air intake
10-EN