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. A
failure to follow this warning can cause electrical shock, fire,
personal injury, or death.
For high-altitude installations, the high-altitude conversion kit
MUST be installed at or above 5500 ft above sea level.
For accessory installation details, refer to applicable installation
literature.
NOTE:
Remove all shipping brackets and materials before oper-
ating furnace.
Step 1—Location
GENERAL
Do not use this furnace during construction when adhesives,
sealers, and/or new carpets are being installed and curing. If
the furnace is required during construction, use clean outside
air for combustion and ventilation. Compounds of chlorine
and fluorine, when burned in combustion air, form acids
which will cause corrosion of the heat exchangers and metal
vent system. Some of these compounds are released from
paneling and dry wall adhesives, paints, thinners, masonry
cleaning materials, and many other solvents commonly used
in the construction process.
Excessive exposure to contaminated combustion air will
result in safety and performance related problems.
Do not install furnace in a corrosive or contaminated atmo-
sphere. Make sure all combustion and circulating air require-
ments are met.
This furnace must be installed so the electrical components are
protected from water.
Locate furnace as near the center of the air distribution system and
chimney or vent as possible. The furnace should be installed as
level as possible. When a furnace is installed so that supply ducts
carry air to areas outside the space containing the furnace, return
air must also be handled by a duct(s) sealed to the furnace casing
and terminating outside the space containing the furnace.
Provide ample space for servicing and cleaning. Always comply
with minimum fire protection clearances shown on unit clearance
label. This furnace shall not be installed directly on carpeting, tile,
or any combustible material other than wood flooring.
LOCATION RELATIVE TO COOLING EQUIPMENT
The cooling coil must be installed parallel with or on downstream
side of furnace to avoid condensation in heat exchangers. When
installed parallel with a furnace, dampers or other means used to
control the flow of air must prevent chilled air from entering
furnace. If dampers are manually operated, they must be equipped
with means to prevent operation of either unit unless damper is in
full-heat or full-cool position.
HAZARDOUS LOCATIONS
Step 2—Air for Combustion and Ventilation
Provisions for adequate combustion and ventilation air must be
provided in accordance with Section 5.3, Air for Combustion and
Ventilation, of the NFGC or applicable provisions of the local
building codes.
Canadian installations must be in accordance with NSCNGPIC
and all authorities having jurisdiction.
NOTE:
These furnaces are designed for a minimum continu-
ous return-air temperature of 60°F or intermittent operation
down to 55°F such as when used with a night setback
thermostat. Return-air temperature must not exceed a maxi-
mum of 85°F. Failure to follow these return-air temperature
limits may affect reliability of heat exchangers, motors, and
controls.
A99075
FRONT
RETURN
AIR
MAX 85
°
F
MIN 55
°
F
°
F
°
F
When furnace is installed in a residential garage, it must be
installed so that burners and ignition sources are located a
minimum of 18 in. above floor. The furnace must be located
or protected to avoid physical damage by vehicles. When
furnace is installed in a public garage, airplane hangar, or
other building having a hazardous atmosphere, unit must be
installed in accordance with requirements of National Fire
Protection Association, Inc.
A93044
18-IN. MINIMUM
TO BURNERS
4
→
→
Содержание 58TUA
Страница 23: ...23 ...
