Installation - Toshiba MMD-AP0481HF2UL Installation Manual

5

Installation

WARNING
Install the air conditioner certainly to sufficiently withstand the weight.
If the strength is insufficient, the unit may fall down resulting in human injury.
Perform a specified installation work to guard against strong wind or earthquake.
An incomplete installation can cause accidents by the units falling and dropping.
REQUIREMENT
Strictly comply with the following rules to prevent damage of the indoor units and human injury.
• Do not put a heavy article on the indoor unit. (Even units are packaged)
• Carry in the indoor unit as it is packaged if possible.
If carrying in the indoor unit unpacked by necessity, be sure to use buffering cloth, etc. to not damage the unit.
• To move the indoor unit, hold the hooking metals (4 positions) only.
Do not apply force to the other parts (refrigerant pipe, drain pan, foamed parts, or resin parts, etc.).
• Carry the package by two or more persons, and do not bundle it with PP band at positions other than specified.
• Use a forklift to transport materials. Do not drag or push the package because it is made of cardboard.
• If the vibration insulator is applied to the hanging bolt, make sure it does not cause larger vibration in the main unit
before using it.
 External view
Installing the four 3/8" (M10)-diameter hanging bolts
• Space the hanging bolts according to the dimensions shown in the diagrams below.
• Use 3/8" (M10)-diameter hanging bolts (Required at the site).
50.7" (1288) (Hanging bolt pitch)
4-M0.4" (10) hanging
Electrical
52.3" (1328)
bolt (Locally procured)
control
box
Model MMD- A
AP048∗ 35.4" (898)
AP072∗
55" (1398)
AP096∗
Considering piping and wire connecting works in the ceiling after hanging down the indoor unit, select an
installation place and then determine the drawing-out direction of the pipes.
• If the ceiling has been already set, draw the refrigerant pipe, drain pipe, inter-unit wire between indoor and
outdoor units, central control system wire and remote control cord up to the positions where pipes and wires are
connected before hanging down the indoor unit.
9-EN
Unit: in (mm)
Refrigerant pipe connecting port
Refrigerant pipe connecting port
(Liquid side) C
(Gas side) D
49.8" (1266)
0.7" (18) 27.5" (699)
2.4" (60)
33.3"(845)
Drain pipe connecting port
B C
32.2" (818) Ø3/8" (9.5) flare Ø5/8" (15.9) flare
49.6" (1260) Ø1/2" (12.7) flare Ø7/8" (22.2) brazing
– 5 –
 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.
 Installation of hanging bolt
Use 3/8" (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.
(Blade type (Slide type
bracket) bracket)
 Hanging up of unit
• Adjust the nut position (lower side).
• Hang up the main unit by hanging nut of hanging bolt to T groove of hanging bracket of the indoor unit.
• Using the level vial, etc., check that four sides are horizontal. (Horizontal degree: within 0.2" (5 mm))
• Attach canvas ducts (locally procured) to the air intake and the air discharge so that vibration of the main unit
does not travel to the duct or ceiling. Attach also acoustic-absorption material to the inner liner of the duct and
the vibration-proof rubber to the hanging bolt.
Hanging bracket
Heat insulator
(Accessory)
D
* Note that the widths of the
AP048, AP072 and AP096
models are different.
REQUIREMENT
• Using a level vial, etc., confirm the horizontal level of the indoor unit.
• Tighten the nut sufficiently, and fix it securely.
Steel flame structure
Use existing angles or install new
support angles.
Hanging bolt
Reinforcing
steel
Anchor bolt
(Pipe hanging
anchor bolt)
Hanging bolt Support angle
Heat insulator
(Accessory)
Existing concrete slab
Use a hole-in anchors, hole-in
plugs, or a hole-in bolts.
Hanging bracket
10-EN