Daikin FXFQ-M, Engineering Data

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Installation EDUS39-600-F1_a
24 FXFQ-M
3. SELECTING INSTALLATION SITE
Attach an additional insulation pipe cover to the unit body
when it is believed that the relative humidity in the ceiling
exceeds 80%. Use glass wool, polyethylene foam, or some-
thing similar with a minimum 3/8 inch thickness as insulation.
For this unit, you are able to select air flow direction.
To enable the discharge of air in 2 or 3 directions, it is neces-
sary to purchase the optional blocking pad kit.
(1) Select an installation site where the following conditions
are fulfilled and that meets with your customer’s approval:
• No possible dripping of water from the refrigerant pipe,
drain pipe, or water pipe into the upper space of the
indoor unit, including the back of the ceiling.
• Optimum air distribution can be ensured.
• Nothing blocks air passage.
• Condensate can be properly drained.
• False ceiling is not noticeably on an incline.
• Sufficient clearance for maintenance and service can
be ensured.
• Piping between indoor and outdoor units is possible
within the allowable limit. Refer to the installation man-
ual of the outdoor unit.
DANGER
• Do not install unit in an area where flammable materials are
present due to risk of explosion resulting in serious injury or
death.
WARNING
• If supporting structural members are not strong enough to
take the unit’s weight, the unit could fall out of place and
cause serious injury.
NOTE
• Install the indoor and outdoor units, power supply wiring
and connecting wires at least 3.5ft. away from televisions or
radios in order to prevent image interference or noise.
Depending on the radio waves, a distance of 3.5 ft. may not
be enough to eliminate the noise.
(2) Ceiling height
This indoor unit may be installed on ceilings up to 11.5 ft.
(30, 36: 13.8 ft.) in height as shown in the following table:
(3) Airflow direction
The below figures are approximations. Select airflow
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 remote controller and to close the
air outlet(s). Refer to the section FIELD SETTING in the
installation manual of the optional blocking pad kit.
(4) Use suspension bolts for installation. Ensure the
ceiling is strong enough to support the weight of the
unit If any risk, reinforce the ceiling before installing
the unit.
(5) Refer to the installation pattern for instructions and to
check for points requiring reinforcing.)
(length: in.)
Number of discharge outlets used
FXFQ12M~24M
4-way air
discharge
3-way air
discharge
2-way air
discharge
Ceiling
height
Standard 8.9 9.9 11.5
Number of discharge outlets used
FXFQ30M·36M
4-way air
discharge
3-way air
discharge
2-way air
discharge
Ceiling
height
Standard 10.5 11.8 13.8
Model H
FXFQ12 · 18 · 24MVJU 9 7/16 or more
FXFQ30 · 36MVJU 11 3/4 or more
[Air flow direction]
Air discharge in
4 directions
Air discharge in
3 directions
Air discharge in
2 directions
H
H
*59
or more
*59
or more
*59
or more
*59
or more
Air
discharge
Air
discharge
39 3/8 or more
Air
inlet
Air inlet
Air discharge
Air
discharge
[Space required for installation]
NOTE) Leave 7 7/8 or more space where marked
with the *, on sides where the air outlet is closed.