Form No. PDS 331AAV.40.8
ENERGY-EFFICIENT with Perfect Heat™
DOWNFLOW/HORIZONTAL
INDUCED-COMBUSTION FURNACE
331AAV
Sizes 065 thru 125
Series B
The Plus 80t Downflow/Horizontal Furnace, with Perfect Heat™,
achieves one of the higher Annual Fuel Utilization Efficiency
(AFUE) ratings available in a noncondensing, induced-combus-
tion furnace. Its ease and economy of installation, ease of service-
ability, and economical initial cost, put it in a class well ahead of
the competition. The model Plus 80t Gas Furnace has the kind of
overall performance needed in today’s homes.
FEATURES
EFFICIENCY
— Plus 80t Induced-Combustion Gas Furnace pro-
vides the efficiency customers want with 80.0 percent AFUE.
HOT SURFACE IGNITION
— This field-proven ignition system
will save energy and improve reliability.
ALUMINIZED HEAT EXCHANGER
— The patented 4-pass heat
exchanger is made of aluminized steel and backed by a 20-year
Limited Warranty.
INTELLIGENT CONTROL
— The Plus 80t Furnace has an intel-
ligent control that monitors the operation of the furnace. This con-
trol also has a component-test feature that enables the servicing
technician to verify operation of the control; high and low inducer;
hot surface ignitor; and low-, medium-, and high-speed blower
operation. The control features a 3-amp fuse that protects the
transformer and control. We guarantee the reliability of the control
with a 3-year Limited Warranty.
40-IN. HEIGHT
— The Plus 80t Induced-Combustion Furnace
with a 40-in. cabinet height simplifies installation in attics, closets,
and crawlspaces, especially with a high-efficiency cooling coil.
MULTIPOISED DOWNFLOW OR HORIZONTAL
— Our furnace
can be used in a downflow, horizontal left, or horizontal right con-
figuration.
PREPAINTED CABINET
— The Plus 80t uses prepainted sheet
metal for the cabinet. This is the same high-quality finish found
on refrigerators and other appliances today. We ensure its dura-
bility by using a galvanized steel substrate to provide superior
rust protection.
PATENTED BLOCKED VENT SAFEGUARD
— Our induced-
combustion furnace has a patented blocked vent safeguard. The
safeguard switch will stop furnace operation if the vent system be-
comes blocked or is not operating properly. An exclusive with the
Plus 80t Furnace.
EASY INSTALLATION
— The model Plus 80t has many features
that make installation easier: left or right gas and electrical con-
nections, heating and cooling blower speed selector, matching
coil sizes, accessory low-voltage connections, and many more.
QUIET OPERATION
— A soft mount inducer assembly and
2-stage slow-opening gas valve reduces sound level. The
Perfect Heat operation capability minimizes furnace and air
noise for total home comfort.
HORIZONTAL
DOWNFLOW
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