Carrier 58DR - Manual (Page 3)

Fig. 5—Furnace, Plenum, and
Base Installed on a Combustible Floor
A CAUTION
Do not insteill furnace in a damp, corrosive, or contami­
nated atmosphere. Make sure all combustion and circu­
lating air requirements listed in “Procedures for
Natured-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 installed. If
the furnace is required during construction, use clean
outside air for combustion and ventilation. Compounds
of chlorine and fluorine when burned with combustion
air form acids which wiU 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.
*IV. Venting
V. Supply-Air Plenum Installation
VI. Electrical
VII. Sequence of Operation
VIII. Füter
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 hterature. Terminals EAC-1 and EAC-2 in the
control box are for direct connection of an electronic air
cleaner.
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.
2. Construct hole in floor per dimensions in Fig. 3 and
Table 4.
3. Place plenum and furnace as shown in Fig. 4.
The design of the downflow gas-fired 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 downflow subbase. This furnace
is for installation in alcoves, basements, closets, or utility
rooms. This furnace fine is not A.G.A. design certified for
installation in a mobile home, recreation vehicle, or
outdoors.
Installation comprises the following:
*1. Inspection
*11. Location, Ventilation, and Air for Combustion
*III. Gas Piping
Fig. 6—Amp Draw Check With Ammeter
A79077
Fig. 7—PrInted-CIrcult Control Center
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