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Ductwork Requirements; Filter Requirements; Wgge45 - Whirlpool Gold WGGE45 Installation Instructions Manual

Whirlpool gold models package gas electric furnaces
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Table of Contents
Unit Dimensions—Inside
A. Blower access panel
B. 22" (55.9 cm)
C. Air return
Minimum Clearances
NOTE: Roof overhang should be no more than 36" (91.4 cm).
A. 48" (121.9 cm) minimum
C. 36" (91.4 cm) minimum service access
B. 12" (30.5 cm) minimum
D. 3" (7.6 cm) minimum
D. Air supply
E. 11" (27.9 cm)
F. 5 ³₄ " (14.6 cm)

Ductwork Requirements

Install all conditioned air plenums, ducts and air filters (if not
provided on the unit) in accordance with NFPA 90B Standard
for the Installation of Warm Air Heating and Air-Conditioning
Systems (latest edition).
The unit is provided with flanges for the connection of the
plenum and ducts.
All air filters must be listed as Class 2 furnace air filters.
All ductwork must be made of materials and insulated to
meet local, state and national codes. Ductwork installed
outdoors must be sealed and be weatherproof to avoid
physical damage. Caulking, flashing or other means of
adequately providing a permanent weather seal should be
used where duct penetrates a building or structure opening.

Filter Requirements

Goodman 93
To prevent property damage due to fire and loss of
equipment efficiency or equipment damage due to dust
and lint build up on internal parts, never operate unit
without an air filter installed in the return air system.
Filters are not supplied with these units; however, filters must be
used. It is the installer's responsibility to install a filter rack with
the ductwork and to install properly sized filters in accordance
with the Minimum Required Surface Area for Disposable Filters
All return air must pass through a filter before entering the unit.
An electronic air cleaner, filter rack or other accessible filter
arrangement must be installed in the return air ductwork.
Minimum recommended filter areas are listed in the Minimum
Required Surface Area for Disposable Filters chart, and are
based on a face velocity of 325 ft (99.1 m) per min. for disposable
filters and 525 ft (160 m) per min. for cleanable filters
Filter Sizes
2 ton
2.5 ton
3 ton
3.5 to 4 ton
5 ton
Filter Installation
IMPORTANT: When installing a filter, the airflow arrows on the
filter must point toward the circulator blower.
Minimum Filter Size
20 x 20 x 1 (1)
20 x 25 x 1 (1)
25 x 25 x 1 (1)
20 x 20 x 1 (2)
20 x 25 x 1 (2)


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