Installation Procedures For Fresh Air Intake Duct Connection - Daikin FCQ18PVJU Installation Manual

33 13/16
(Opening dimension inside
the frame for ceiling)
Frame
False
ceiling
13/16 or more 33 13/16-*35 13/16
(Ceiling opening dimension)
Ceiling material
1 3/8 or less
NOTE) Installation is possible with a ceiling dimension of
35 13/16 in. (marked with *). However, to achieve a
ceiling-panel overlapping dimension of 13/16 in., the
spacing between the ceiling and the unit should be
1 3/8 in. or less. If the spacing between ceiling and the
unit is over 1 3/8 in., attach false ceiling to
recover the ceiling.
(2) Make the ceiling opening needed for installation
where applicable. (For existing ceilings)
• Refer to the paper pattern for installation (5) for 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 pipe and remote controller wire
(unnecessary for wireless type) and indoor-outdoor unit
casing outlet. Refer to the "REFRIGERANT PIPING
WORK (Page 7), DRAIN PIPING WORK (Page 8) and
ELECTRIC WIRING WORK (Page 9)".
• 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 W3/8 or M10 size bolt)
Use a hole-in anchor for existing ceilings, and a sunken
insert, sunken anchor or other fi eld supplied parts for new
ceilings to reinforce the ceiling to bear the weight of the
unit. Adjust clearance from the ceiling before proceeding
further.
5
Installation example
13/16 or more
(Ceiling-panel
overlapping
dimension)
5. INSTALLATION PROCEDURES FOR
FRESH AIR INTAKE DUCT CONNECTION
(1) Cut off the knockout hole on the side plate.
Then, cut the inner insulation of the hole portion.
(Refer to Fig. 1)
(2) Adhere the insulation for opening of unit to the opening.
(Refer to Fig. 2)
1 3/8 or less
Refrigerant pipe
(length: in.)
part or
Inner
insulation
Ceiling slap
Anchor
Long nut or turn-buckle
Suspension bolt
False ceiling
NOTE) All the above parts are field supplied.
Drain pipe
Inner insulation
Side plate
Cut it off with cutter.
Cut it off with nipper.
Slit
Side plate
Fig. 1
(length: in.)
English