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

CHECK SAFETY CONTROLS ............................................46-47
Check Primary Limit Control.................................................46
Check Pressure Switch ...........................................................46
CHECKLIST ................................................................................47

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, tire, 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.
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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.
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.
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.
The 58MVP Multipoise Condensing Gas-Fired Furnaces are
C.S.A. 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 C.S.A. 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. These furnaces are suitable for
installation in a structure built on site or a manufactured building
completed at final site. The design of this furnace line is NOT
C.S.A. 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) system and a factory accessory termination kit. In a
direct-vent system, all air for combustion is taken directly from the
outside atmosphere and all flue products are discharged to the
outside atmosphere. See furnace and factory accessory termination
kit instructions for proper installation.
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Never test for gas leaks with an open flame. Use a commercially
available soap solution made specifically for the detection of leaks
to check all connections as specified in the GAS PIPING section
of these instructions.
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Always install furnace to operate within the furnace's intended
temperature-rise range with a duct system which has an external
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static pressure within the allowable range as specified in the SET
TEMPERATURE RISE section of these instructions.
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When a furnace is installed so that the supply ducts carry air
circulated by the furnace to areas outside the space containing the
furnace, the return air must also be handled by a duct(s) sealed to
the furnace casing and terminating outside the space containing the
furnace.
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A gas-fired furnace for installation in a residential garage must be
installed as specified in the Hazardous Locations section and Fig.
5.
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The furnace is not to be used for temporary heating of buildings or
structures under construction unless the furnace installation and
operation complies with first CAUTION in the LOCATION
section of these instructions.
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