Daikin FXZQ-M Series Engineering Data page 26

EDUS39-800-F9
4. SELECTING INSTALLATION SITE
When the conditions in the ceiling are exceeding 86°F and a
relative humidity of 80%, or when fresh air is inducted into the
ceiling, an additional insulation is required (minimum 0.8 in
thickness, polyethylene foam).
For this unit you can select different air flow directions. It is
necessary to purchase an optional blocking pad kit to dis-
charge the air in 2 or 3 directions.
(1) Select an installation site where the following condi-
tions are fulfilled and that meets your customer's
approval.
• Where optimum air distribution can be ensured.
• Where nothing blocks air passage.
• Where condensate water can be properly drained.
• Where the false ceiling is not noticeably on an incline.
• Where sufficient clearance for maintenance and service
can be ensured.
• Where piping between indoor and outdoor units is possi-
ble within the allowable limit. (Refer to the installation
manual of the outdoor unit.)
• This is a class A product. In a domestic environment this
product may cause radio interference in which case the
user may be required to take adequate measures.
• Keep indoor unit, outdoor unit, power supply wiring and
transmission wiring at least 3.28 ft away from televisions
and radios. This is to prevent image interference and
noise in those electrical appliances.
(Noise may be generated depending on the conditions
under which the electric wave is generated, even if 3.28 ft
is kept.)
(2) Ceiling height
Install this unit where the height of bottom panel is more
than 8.2 ft so that the user cannot easily touch.
(3) Air flow directions
Select the air flow directions best suited to the room and
point of installation. (For air discharge in 2 or 3 directions,
it is necessary to make field settings by means of the
remote controller and to close the air outlet(s). Refer to
the installation manual of the optional blocking pad kit and
to the chapter "Field setting" on page 10.) (See figure 2
(= air flow direction))
1 Air discharge in 4 directions
2 Air discharge in 3 directions
3 Air discharge in 2 directions
(4) Use suspension bolts for installation. Check whether
the ceiling is strong enough to support the weight of
the indoor unit. If there is a risk, reinforce the ceiling
before installing the unit.
(The installation pitch is marked on the paper pattern for
installation. Refer to it to check for points requiring rein-
forcing.) Space required for installation see figure 6 (=
air flow direction)
1 Air inlet
2 Air outlet
NOTE
Leave 8 in or more space where marked with * on sides where
the air outlet is closed.
FXZQ-M
DANGER
Do not install the unit in an area where flammable materials
are present due to risk of explosion resulting in serious injury
or death.
WARNING
If the basis underneath the unit is not strong enough to sup-
port the weight of the unit, the unit could be fall out of place
and cause serious injury.
5. PREPARATIONS BEFORE INSTALLATION
(1) Relation of ceiling opening to unit and suspension
bolt position. (See figure 7)
1 Decoration panel dimensions
2 Ceiling opening dimensions
3 Indoor unit dimensions
4 Suspension bolt pitch dimensions
5 Refrigerant piping
6 Suspension bolt (x4)
7 False ceiling
8 Hanger bracket
NOTE
Installation is possible with a ceiling opening dimension of 26
in (marked with *). However, to achieve a ceiling-panel over-
lapping dimension of 0.8 in, the spacing between the ceiling
and the unit should be 1.8 in; or less. If the spacing between
ceiling and the unit is over 1.8 in, attach sealing material in the
part marked or recover the ceiling. (See figure 3)
1 Sealing material
2 False 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 control-
ler and indoor-outdoor unit wiring. Refer to each piping or
wiring section.
• After making an opening in the ceiling, it may be neces-
sary 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 M8 or M10
size bolt.)
Use anchors for existing ceilings, and a sunken insert,
sunken anchors or other field supplied parts for new ceil-
ings to reinforce the ceiling in order to bear the weight of
the unit. Adjust clearance from the ceiling before proceed-
ing further.
Installation example see figure 4.
1 Ceiling slab
2 Anchor
3 Long nut or turn-buckle
4 Suspension bolt
5 False ceiling
Installation and Operation
25