HEATING A COOLING
58DP,DR
Downflow Gas-Fired Natural-Draft Furnaces
Installation, Start-Up and Service
Instructions
NOTE: Read the entire instructions before starting the
installation.
NOTE: The Energy Guide tag can be removed from the fur
nace when the installation is complete.
INTRODUCTION
Before installing the furnace, refer to “Procedures for
Natural-Draft Gas-Fired Furnaces” (packaged with the
equipment) for information concerning combustion, venting,
piping, and other standard installation practices. Further
reference is made to the current edition of the National Fuel
Gas Code NFPA No. 54, T1A-54-1984-1/ANSI Z223.1-1984,
Z223.1a-1987.
Each furnace is shipped from the factory completely assem
bled with multispeed direct-drive blower and wired ready for
downflow indoor heating installation only. AU sizes feature
a printed-circuit board control center with easy-to-read, low-
voltage terminal strip to ensure proper connections.
A CAUTION
Do not install furnace in a damp, corrosive, or contami
nated atmosphere. Make sure all combustion and circu
lating air requirements listed in “Procedures for
Natural-Draft Gas-Fired Furnaces” are adhered to, in
addition to all local codes and ordinances.
Do not use this furnace during construction when adhe
sives, sealers and/or new carpets are being installèd. If
the furnace is required during construction, use clean
outside air for combustion and ventilation. Compoxmds
of chlorine and fluorine when burned with combustion
air form acids which will cause corrosion of the heat
exchangers and metal vent system. Some of these com
pounds are paneling and dry wall adhesives, paints,
thinners, masonry cleaning materials, and many other
solvents commonly used in the construction process.
The design of the downflow gas-flred furnace is A.G.A. cer
tified for installation on noncombustible flooring. The fur
nace may be installed on combustible flooring when
installed with the accessory floor base. This furnace is for
installation in alcoves, basements, closets, or utility rooms.
This furnace line is not A.G.A. design certified for installa
tion in a mobile home, recreation vehicle, or outdoors.
Installation comprises the following:
*1. Inspection
*11. Location, Ventilation, and Air for Combustion
*III. Gas Piping
*IV. Venting
V. Supply-Air Plenum Installation
VI. Electrical
a
EFFICIENCY
RATING
CERTIFIED
ama
A78593
Fig. 1—Model 58DP
Table 1—Clearances (In Inches)
Sizes 050 075 thru 150
Sides—Single-Wall Vent 1 1
Type-BI Double-Wall Vent 0 1
Back 0 0
Top of Plenum
1 1
Vent Connector—Single-Wall 6 6
Type-B1 Double-Wall 1 1
Front-Combustion Air* * 6 6
Service 30 30
*The 6-inch front clearance is needed for combustion-air entry and
drafthood reiief.
VII. Sequence of Operation
VIII. Filter
IX. Startup and Adjustment
X. Care and Maintenance
*To perform these sections (or installation steps), refer to
the appropriate sections of “Procedures for Natural-Draft
Gas-Fired Furnaces” booklet packaged with this unit.
For accessory installation details, refer to the applicable
installation literature.
V. SUPPLY-AIR PLENUM INSTALLATION
A. Installation on a concrete slab
1. See Fig. 2 for dimensions and location of supply-air
opening in furnace bottom.
Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
'' I ^ PC 101 Cataiog No. 535-871 Printed in U.S.A. Form 58DP,DR-2SI 11/87
Tab I6al8a
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Repiaces: 58DP,DR-1Si
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