Installation; General; Flue Box; Wind Deflector - Daikin FC Series Installation And Maintenance Manual

General

The installation of this equipment must be in accordance
with the regulations of authorities having jurisdiction and all
applicable codes . It is the responsibility of the installer to
determine and follow the applicable codes . Sheet metal parts,
self-tapping screws, clips, and such items inherently have
sharp edges, and it is necessary that the installer exercise
caution . This equipment must be installed by an experienced
professional installation company that employs fully trained and
experienced technicians .
Table 1: Flue Height by Unit Model
Burner
Furnace Size
Model
(Output MBH)
015D–042D
Number
020 200
025 250
032 320
040 400
050 500
6 .00 Inches
064 640
065 650
079 790
080 800
100 1000
110 1100
140 1400
150 1500
200 2000

Flue Box

The flue box (see Figure 1) is not installed at the factory
because it would increase the width of the unit beyond the
allowable shipping width . All holes are pre punched, the
fasteners are furnished and everything is shipped inside a box
in the burner section . On Models 150 through 200, it is shipped
in the same crate as the vestibule . Remove and discard the
shipping cover installed over the furnace tube outlets before
installing the flue box.
1 . Remove the screws (2) in the casing of the unit that line
up with the bottom lip holes of the flue box tube sheet
(3) . These screws will later be replaced, at which time
they will also attach the bottom of the flue box to the unit.
2 . Install flue box wrapper sheet (4) by sliding it up from
below . Attach with side screws (5) . At this time reinstall
bottom screws (2) .
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Unit Sizes
045D–075D 080D–105D
—
7 .50 Inches
—
—
—
8 .50 Inches
6 .0 Inches
— —
— —
— —
— —
Figure 1: Flue Box

Wind Deflector

The wind deflector is not installed at the factory because it
would increase the width of the unit beyond the allowable
shipping width. The deflector is shipped in a box in the burner
section. Install the wind deflector over the combustion air
intake opening of the burner compartment before operating the
burner . Use inner hinge screws on top hinged door (see
2) . Side hinged doors have holes for mounting (see
Models 020 and 025 have a different style wind deflector. It
mounts on the door and has a top opening flush with the roof
of the unit (see Figure 17 on page
Figure 2: Wind Deflector, Models (032 thru 140)
5

Installation

Figure
Figure
19) .
IM 684-6 • ROOFTOP SYSTEMS
Installation
6) .