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
Model
Number
Furnace Size
(Output MBH)
Unit Sizes
015D–042D 045D–075D 080D–105D
020 200
6.00 Inches
7.50 Inches
—
025 250 —
032 320
8.50 Inches
—
040 400 —
050 500
6.0 Inches
064 640
065 650
079 790
080 800
100 1000
110 1100 — —
140 1400 — —
150 1500 — —
200 2000 — —
Flue Box
The ue 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 ue box.
1. Remove the screws (2) in the casing of the unit that line
up with the bottom lip holes of the ue box tube sheet
(3). These screws will later be replaced, at which time
they will also attach the bottom of the ue box to the unit.
2. Install ue box wrapper sheet (4) by sliding it up from
below. Attach with side screws (5). At this time reinstall
bottom screws (2).
Figure 1: Flue Box
The wind deector is not installed at the factory because it
would increase the width of the unit beyond the allowable
shipping width. The deector is shipped in a box in the burner
section. Install the wind deector over the combustion air
intake opening of the burner compartment before operating the
burner. Use inner hinge screws on top hinged door (see Figure
2). Side hinged doors have holes for mounting (see Figure 6).
Models 020 and 025 have a dierent style wind deector. It
mounts on the door and has a top opening ush with the roof
of the unit (see Figure 17 on page 19).
Figure 2: Wind Deector, Models (032 thru 140)
www.DaikinApplied.com 5 IM 684-6 • ROOFTOP SYSTEMS
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