Table of Contents
Advertisement
WARNING
!
FIRE, INJURY OR DEATH HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
When the furnace is installed in a residential garage,
the burners and ignition sources must be located at
least 18 in. (457 mm) above the floor. The furnace
must be located or protected to avoid damage by
vehicles. When the furnace is installed in a public
garage, airplane hangar, or other building having a
hazardous atmosphere, the furnace must be installed
in accordance with the NFPA 54/ANSI Z223.1−2009 .
(See Figure 5)
CAUTION
!
PERSONAL INJURY AND/OR PROPERTY
DAMAGE HAZARD
Failure to follow this caution may result in furnace
component damage.
This gas furnace may be used for heating buildings
under construction provided that:
−The furnace is permanently installed with all
electrical wiring, piping, venting and ducting installed
according to these installation instructions. A return
air duct is provided, sealed to the furnace casing, and
terminated outside the space containing the furnace.
This prevents a negative pressure condition as
created by the circulating air blower, causing a flame
rollout and/or drawing combustion products into the
structure.
−The furnace is controlled by a thermostat. It may not
be hot wired to provide heat continuously to the
structure without thermostatic control.
−Clean outside air is provided for combustion. This is
to minimize the corrosive effects of adhesives,
sealers and other construction materials. It also
prevents the entrainment of drywall dust into
combustion air, which can cause fouling and plugging
of furnace components.
−The temperature of the return air to the furnace is
maintained between 55_F (13_C) and 80_F (27_C),
with no evening setback or shutdown. The use of the
furnace while the structure is under construction is
deemed to be intermittent operation per our
installation instructions.
−The air temperature rise is within the rated rise
range on the furnace rating plate, and the gas input
rate has been set to the nameplate value.
−The filters used to clean the circulating air during the
construction process must be either changed or
thoroughly cleaned prior to occupancy.
−The furnace, ductwork and filters are cleaned as
necessary to remove drywall dust and construction
debris from all HVAC system components after
construction is completed.
−Verify proper furnace operating conditions including
ignition, gas input rate, air temperature rise, and
venting according to these installation instructions.
441 01 1402 02
Figure 5 - Installation in a Garage
WARNING
!
FIRE HAZARD
Failure to follow this warning could result in personal
injury, death and/or property damage.
Do not install the furnace on its back or hang furnace
with control compartment facing downward. Safety
control operation will be adversely affected. Never
connect return−air ducts to the back of the furnace.
(See Figure 6)
Figure 6 - Prohibit Installation on Back
LOCATION RELATIVE TO COOLING EQUIPMENT
The cooling coil must be installed parallel with, or on the
downstream side of the unit to avoid condensation in the heat
exchangers. When installed parallel with the furnace,
dampers or other flow control must prevent chilled air from
entering the furnace. If the dampers are manually operated,
they must be equipped with means to prevent operation of
either unit unless the damper is in the full−heat or full−cool
position.
AIR FOR COMBUSTION AND
VENTILATION
Provisions for adequate combustion, ventilation, and dilution
air must be provided in accordance with:
Section 9.3 of the NFPA 54 / ANSI Z223.1−2009, Air
for Combustion and Ventilation, and applicable pro-
visions of the local building codes.
18−IN. (457.2 mm)
MINIMUM TO BURNERS
A93044
A02054
7
Hide quick links:
Advertisement
Table of Contents
