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Concealed Duct High Static Pressure
Installation Manual
Concealed Duct High Static Pressure
Installation Manual
4 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.).
• Hanging bolt pitch of air inlet chamber side is different (centre position), make sure not to make mistake to install the
setting direction.
• Carry the package by two or more persons, and do not bundle it with plastic band at positions other than specified.
n External Dimensions (Unit: mm)
1328
1380
100
200 150
31
45
470
624
1250
698
22
46
65
1288 (Hanging bolt pitch)
4-M10 hanging bolt
(Local procure)
Electrical control box
1260 (Hanging bolt pitch)
Refrigerant pipe connecting port
(Liquid side Ø12.7 Flared)
Drain pipe
connecting port
Refrigerant pipe connecting port
(Gas side Ø22.2 Brazed)
Rubber
Anchor bolt
(Pipe hanging
anchor bolt)
(Slide type
bracket)
(Blade type
bracket)
Hanging bolt
Hanging bolt Support angle
Nut
(W3/8 or M10)
Nut
(W3/8 or M10)
M10 flat washer
M10 flat washer
Hanging bolt
(W3/8 or M10)
0 to 5mm
±5mm
Water pouring
Set the drain pipe connecting
port side within 5mm lower
than opposite side.
Set the air inlet and air outlet
sides are within 5mm with
each other.
Front view
Side view
Vinyl hose
n Installation of hanging bolt
• Consider the piping/wiring after the unit is hung when
determining the location of the indoor unit installation
and orientation.
• After the location of the indoor unit installation has been
determined, install hanging bolts.
• For the dimensions of the hanging bolt pitches, refer to
the external view.
• When a ceiling already exists, lay the drain pipe,
refrigerant pipe, system interconnection wires, and
remote controller wires to their connection locations
before hanging the indoor unit.
Procure hanging bolts washer and nuts for installing the
indoor unit (these are not supplied).
Hanging bolt
Nut
Washer
M10 or W3/8
M10 or W3/8
M10
4 pieces
12 pieces
8 pieces
Installation of hanging bolt
Use M10 hanging bolts (4 pcs, to be local procure).
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.
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.
n Installation of indoor unit
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.
• Attach the nuts and the M10 flat washers to the hanging
bolt.
• Put washers at up and down of the hanging bracket of
the indoor unit to hang down the indoor unit.
• Using a level vial, check that four sides are horizontal.
(Horizontal degree: Within 5mm)
• Check that four sides are horizontal using a level vial.
(Horizontal degree: Within 5mm)
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.
• Using level vial or vinyl hose to confirm whether the unit
is hang horizontally.
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