for use with natural gas. A C.S.A. (formerly AGA and CGA) listed
gas conversion kit is required to convert furnace for use with
propane gas.
This furnace shall not be installed directly on carpeting, tile, or
any other combustible material other than wood flooring. For
downflow installations, a factory accessory floor base must be
used when installed on combustible materials and wood flooring.
Special base is not required when this furnace is installed on the
manufacturer’s coil assembly or when the manufacturer’s coil box
is used. The design of the 58MTA furnace is not C.S.A. (formerly
AGA and CGA) certified for installation in mobile homes,
recreational vehicles, or outdoors. This furnace is suitable for
installation in a structure built on site or a manufactured building
completed at final site.
1. Combustion products must be discharged outdoors. Connect
this furnace to an approved vent system only, as specified in
the “Venting” section of these instructions
2. Never test for gas leaks with an open flame. Use a commer-
cially available soap solution made specifically for the detec-
tion of leaks to check all connections, as specified in the
″
Gas
Piping
″
and
″
Start-Up, Adjustment, and Safety Check
″
sec-
tion.
3. Always install furnace to operate within the furnace’s intended
temperature-rise range with a duct system which has an
external static pressure within the allowable range, as speci-
fied in the “Adjustments” section. See furnace rating plate.
4. When a furnace is installed so that supply ducts carry air
circulated by the furnace to areas outside the space containing
the furnace, the return air shall also be handled by duct(s)
sealed to the furnace casing and terminating outside the space
containing the furnace.
5. A gas-fired furnace for installation in a residential garage must
be installed as specified in the warning box in the “Location”
section.
6. The furnace is not to be used for temporary heating of
buildings or structures under construction.
This furnace is designed for continuous return-air minimum
temperature of 60°F db or intermittent operation down to 55°F db
such as when used with a night setback thermostat. Return-air
temperature must not exceed 85°F db. Failure to follow these
return air limits may affect reliability of heat exchangers, motors
and controls. (See Fig. 4.)
This furnace is shipped with the drain and pressure tubes con-
nected for UPFLOW applications. Minor modifications are re-
quired when used in DOWNFLOW, HORIZONTAL RIGHT,
or HORIZONTAL LEFT (supply-air discharge direction) appli-
cations as shown in Fig. 1. See details in Applications section.
This furnace must be installed with a direct-vent (combustion air
and flue gas) system and a factory accessory termination kit. In a
direct-vent system, all air for combustion is taken directly from the
outdoor atmosphere and flue gases are discharged to the outdoor
atmosphere. See furnace and factory accessory vent-air intake
termination kit instructions for proper installation.
This furnace is shipped with the following materials to assist in
proper furnace installation. These materials are shipped in the main
blower compartment.
Installer Packet includes:
Installation, Startup, and Operating Instructions
Service and Maintenance Instructions
User’s Information Manual
Warranty Certificate
Loose Parts Bag includes:
Quantity
Pressure tube extension
1
Collector Box or condensate trap extension tube
1
Inducer housing drain tube
1
1/2-in CPVC street elbow
2
Drain tube coupling
1
Drain tube coupling grommet
1
Vent and combustion-air intake pipe support
2
Condensate trap hole filler plug
3
Vent and combustion-air intake hole filler plug
2
Combustion-air intake pipe perforated disk assembly
1
Vent Pipe Extension
1*
* ONLY supplied with some furnaces.
For accessory installation detail, refer to the accessory installation
instruction.
NOTE:
Remove all shipping materials before operating furnace.
CODES AND STANDARDS
Follow all national and local codes and standards in addition to
these instructions. The installation must comply with regulations
of the serving gas supplier, local building, heating, plumbing, and
other codes. In absence of local codes, the installation must
comply with the national codes listed below and all authorities
having jurisdiction.
In the United States and Canada, follow all codes and standards for
the following:
Step 1—Safety
•
US: National Fuel Gas Code (NFGC) NFPA 54-2002/ANSI
Z223.1-2002 and the Installation Standards, Warm Air Heating
and Air Conditioning Systems ANSI/NFPA 90B
•
CANADA: National Standard of Canada, Natural Gas and
Propane Installation Code (NSCNGPIC) CSA B149.1-00
Step 2—General Installation
•
US: NFGC and the NFPA 90B. For copies, contact the National
Fire Protection Association Inc., Batterymarch Park, Quincy,
MA 02269; or for only the NFGC contact the American Gas
Association, 400 N. Capitol, N.W., Washington DC 20001
•
CANADA: NSCNGPIC. For a copy, contact Standard Sales,
CSA International, 178 Rexdale Boulevard, Etobicoke (Tor-
onto), Ontario, M9W 1R3, Canada.
Step 3—Combustion and Ventilation Air
•
US: Section 8.3 of the NFGC, Air for Combustion and
Ventilation
•
CANADA: Part 7 of the NSCNGPIC, Venting Systems and Air
Supply for Appliances
3
