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PREPARATIONS BEFORE INSTALLATION
1. Relation of ceiling opening to unit and suspension bolt
position. (see figure 3)
1
Refrigerant piping
2
Suspension bolt (x4)
3
Hanger bracket
4
False ceiling
5
Suspension bolt pitch
6
Indoor unit
7
Ceiling opening
8
Decoration panel
• Installation is possible when opening dimensions are as
follows.
When installing the unit within the frame for fixing ceiling
materials.
see figure 4
1
Dimensions inside frame
2
Opening dimension inside the frame for ceiling
3
Frame
4
Ceiling material
5
Ceiling opening dimension
6
Ceiling-panel overlapping dimension
NOTE
• Installation is possible with a ceiling dimension of 910mm
(marked with*). However, to achieve a ceiling-panel
overlapping dimension of 20mm, the spacing between the
ceiling and the unit should be 35mm or less. If the spacing
between ceiling and the unit is over 35mm, attach ceiling
material to the part or recover the ceiling.
2. Make the ceiling opening needed for installation where
applicable. (For existing ceilings.)
• Refer to the paper pattern for installation for the ceiling
opening dimensions.
• Create the ceiling opening required for installation. From
the side of the opening to the casing outlet, implement the
refrigerant and drain piping and wiring for remote controller
(unnecessary for wireless type). Refer to each piping or
wiring section.
• After making an opening in the ceiling, it may be necessary
to reinforce ceiling beams to keep the ceiling level and to
prevent it from vibrating. Consult the builder for details.
3. Install the suspension bolts. (Use either a W3/8 or M10
size bolt.)
Use anchors for existing ceilings, and a sunken insert, sunken
anchors or other field supplied parts for new ceilings to
reinforce the ceiling in order to bear the weight of the unit.
Adjust clearance from the ceiling before proceeding further.
Installation example see figure 5
1
Ceiling slab
2
Anchor
3
Long nut or turn-buckle
4
Suspension bolt
5
False ceiling
NOTE
• All the above parts are field supplied.
• For other installation than standard installation, contact your
Daikin dealer for details.
INSTALLATION PROCEDURES FOR
FRESH AIR INTAKE DUCT CONNECTION
1. Preparing the connection hole (see figure 10).
• Cut off the knockout hole on the side plate with a nipper.
• Cut the insulation of the hole portion with a cutter.
1
Piping
2
Drain pipe
3
Side plate
4
Inner insulation
5
Slit
3
2. Placing the insulation (see figure 11).
• Put the insulation tightly around the hole of the unit as
shown. The ends of the side plate and the inner insulation
must be completely adhered without leaving any clearance
along the circumference of the hole.
Make sure the inner surface of insulation tightly contacts
the inner insulation edge and the side plate.
1
Insulation (field supply)
2
Side plate
3
Inner insulation
INDOOR UNIT INSTALLATION
When installing optional accessories (except for the decoration
panel), read also the installation manual of the optional
accessories. Depending on the field conditions, it may be easier
to install optional accessories before the indoor unit is installed.
However, for existing ceilings, install fresh air inlet component kit
and branch duct before installing the unit.
1. Install the indoor unit temporarily.
• Attach the hanger bracket to the suspension bolt. Be sure
to fix it securely by using a nut and washer from the upper
and lower sides of the hanger bracket.
Securing the hanger bracket see figure 6
1
Nut (field supply)
2
Washer (supplied with the unit)
3
Hanger bracket
4
Tighten (double nut)
2. Fix the paper pattern for installation. (For new ceilings
only.)
• The paper pattern for installation corresponds with the
measurements of the ceiling opening. Consult the builder
for details.
• The centre of the ceiling opening is indicated on the paper
pattern for installation. The centre of the unit is indicated
on the unit casing and on the paper pattern for installation.
• After removing the packaging material from the paper
pattern for installation, attach the paper pattern for
installation to the unit with the attached screws as shown
in figure 7.
1
Height adjustment of the unit
2
Ceiling material
3
Lower surface of ceiling
4
Installation of paper pattern for installation (supplied with the unit)
5
Centre of the ceiling opening
6
Centre of the unit
7
Paper pattern for installation
8
Screws (supplied with the unit)
• The ceiling height is shown on the side of the paper pattern
for installation. Adjust the height of the unit according to
this indication.
3. Adjust the unit to the right position for installation.
(Refer to the chapter "Preparations before installation".)
4. Check if the unit is horizontally levelled.
• Do not install the unit tilted. The indoor unit is equipped
with a built-in drain pump and float switch.
(If the unit is tilted against condensate flow, the float switch
may malfunction and cause water to drip.)
• Check if the unit is levelled at all four corners with a water
level or a water-filled vinyl tube as shown in figure 14.
1
Water level
2
Vinyl tube
5. Remove the paper pattern for installation. (For new
ceilings only.)
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