EDUS39-600-F2_a Installation
FXDQ-M 21
• Once the installation hole is opened in the ceiling where
the unit is to be installed, pass refrigerant piping, drain
piping, transmission wiring, and remote controller wir-
ing unnecessary if using a wireless remote controller)
to the unit’s piping and wiring holes.
See Section 6. REFRIGERANT PIPING WORK, Sec-
tion 7. DRAIN PIPING WORK, and 10. WIRING EXAM-
PLE.
• After opening the ceiling hole, make sure ceiling is level
if needed. It might be necessary to reinforce the ceiling
frame to prevent shaking.
Consult an architect or carpenter for details.
(4) Install the suspension bolts.
Use W3/8 to M10 suspension bolts.
Use a hole-in-anchor for existing ceilings, and a sunken
insert, sunken anchor or other part to be procured in the
field to reinforce the ceiling to bearing the weight of the
unit for new ceiling. (Refer to Fig. 3)
(5) For bottom intake, replace the chamber lid in the pro-
cedure listed in Fig. 4.
(1) Remove the protection net and the chamber lid.
(2) Refer to Fig. 4 for direction of the protection net and
the chamber lid.
(3) Attach the air filter (accessory) in the manner shown
in the diagram.
The four holes which cannot be covered by the air fil-
ter should be covered with commercially available
tape.
Note: All the above parts are field supplied.
Suspension bolt
Long nut or turn-buckle
Anchor bolt
Indoor unit
Ceiling slab
Fig. 3
Air inlet
Protection net
Protection net
(1)
(2)
Fig. 4
Air discharge
Air inlet
Air discharge
Chamber lid
Chamber lid
In case of bottom side
In case of back side
Filter
Force
Force
Main unit
Attach the filter to the
main unit while pushing
down on the tabs.
(3)
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