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Installation
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 flue box (see
)
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) .
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
) . 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 2:
Wind Deflector, Models (032 thru 140)
Installation
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IM 684-6 • ROOFTOP SYSTEMS