Safety Considerations - Carrier 58MCA Installation, Start-Up, And Operating Instructions Manual

SAFETY CONSIDERATIONS

Application of this furnace should be indoors with special
attention given to vent sizing and material, gas input rate, air
temperature rise, unit leveling, and unit sizing. Improper
installation or misapplication of furnace can require excessive
servicing or cause premature component failure.
Improper installation, adjustment, alteration, service, mainte-
nance, or use can cause carbon monoxide poisoning, explo-
sion, fire, electrical shock, or other conditions which may
cause personal injury or property damage. Consult a qualified
installer, service agency, local gas supplier, or your distribu-
tor or branch for information or assistance. The qualified
installer or agency must use only factory-authorized and
listed kits or accessories when modifying this product. Failure
to follow this warning could result in electrical shock, fire,
personal injury, or death.
Installing and servicing heating equipment can be hazardous due to
gas and electrical components. Only trained and qualified
personnel should install, repair, or service heating equipment.
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing air filters. All other operations must
be performed by trained service personnel. When working on
heating equipment, observe precautions in literature, on tags, and
on labels attached to or shipped with unit and other safety
precautions that may apply.
These instructions cover the minimum requirements and conform
to existing national standards and safety codes. In some instances,
these instructions exceed certain local codes and ordinances,
especially those that may not have kept up with changing residen-
tial construction practices. We require these instructions as a
minimum for a safe installation.
Wear safety glasses and work gloves. Have a fire extinguisher
available during start-up and adjustment procedures and service
calls.
Sheet metal parts may have sharp edges or burrs. Use care and
wear appropriate protective clothing and gloves when han-
dling parts. Failure to follow this caution could result in
personal injury.
Recognize safety information. This is the safety-alert symbol
When you see this symbol on the unit and in instructions or
manuals, be alert to the potential for personal injury.
Understand these signal words DANGER, WARNING, CAU-
TION, and NOTE. These words are used with the safety-alert
symbol. DANGER identifies the most serious hazards which will
result in severe personal injury or death. WARNING signifies
hazards which could result in personal injury or death. CAUTION
is used to identify unsafe practices which would result in minor
personal injury or product and property damage. NOTE is used to
highlight suggestions which will result in enhanced installation,
reliability, or operation.
The 58MCA Multipoise Condensing Gas-Fired Furnaces are CSA
design-certified for natural and propane gases (see furnace rating
plate) and for installation in alcoves, attics, basements, closets,
utility rooms, crawlspaces, and garages. The furnace is factory-
shipped for use with natural gas. A CSA listed gas conversion kit
is required to convert furnace for use with propane gas.
See Fig. 3 for required clearances to combustibles.
Maintain a 1-in. clearance from combustible materials to supply air
ductwork for a distance of 36 inches horizontally from the furnace.
See NFPA 90B or local code for further requirements.
These furnaces SHALL NOT be installed directly on carpeting,
tile, or any other combustible material other than wood flooring. In
downflow installations, 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
manufacturer's Coil Assembly Part No. CD5 or CK5, or when Coil
Box Part No. KCAKC is used.
The 58MCA 040 through 120 size units are CSA design-certified
for use in manufactured (mobile) homes when factory accessory
conversion kit is used. The 140 size unit is NOT design-certified
for use in manufactured (mobile) homes. These furnaces are
suitable for installation in a structure built on site or a manufac-
tured building completed at final site. The design of this furnace
line is NOT CSA design-certified for installation in recreation
vehicles or outdoors.
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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.)
These furnaces are shipped with the drain and pressure tubes
connected for UPFLOW applications. Minor modifications are
required when used in DOWNFLOW, HORIZONTAL RIGHT, or
HORIZONTAL LEFT (supply-air discharge direction) applica-
tions 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 termination kit
instructions for proper installation.
These furnaces are 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:
. Pressure tube extension
Collector Box or condensate trap extension tube
Inducer housing drain tube
1/2-in CPVC street elbow
Drain tube coupling
Drain tube coupling grommet
Vent and combustion-air pipe support
Condensate trap hole filler plug
Vent and combustion-air intake hole filler plug
Combustion-air pipe perforated disk assembly
Vent Pipe Extension
* ONLY supplied with some furnaces.
For accessory installation details, refer to accessory installation
instructions.
CODES AND STANDARDS
Follow all national and local codes and standards in addition to
these instructions. The installation must comply with regulations
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