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2 Pub. No. 22-1682-05-0802 (EN)
General
Features
© 2002 American Standard Inc. All Rights Reserved
NATURAL GAS MODELS
Central heating furnace designs are
certified by the International Approval
Services (IAS) for both natural and
L.P. gas. Limit setting and rating data
were established and approved under
standard rating conditions using
American National Standards Institute
standards.
SAFE OPERATION
The Integrated System Control has solid
state devices, which continuously
monitor for presence of flame, when the
system is in the heating mode of
operation. Dual solenoid combination
gas valve and regulator provide extra
safety.
QUICK HEATING
Durable, cycle tested, heavy gauge
aluminized steel heat exchanger
quickly transfers heat to provide warm
conditioned air to the structure. Low
energy power vent blower, to increase
efficiency and provide a positive
discharge of gas fumes to the outside.
BURNERS
Multi-port In-shot burners will give years
of quiet and efficient service. All models
can be converted to L.P. gas without
changing burners.
INTEGRATED SYSTEM CONTROL
Exclusively designed operational
program provides total control of furnace
limit sensors, blowers, gas valve, flame
control and includes self diagnostics for
ease of service. Also contains
connection points for E.A.C./humidifier.
CONDENSATE DRAIN
Built-in trap which can drain from either
side when the furnace is installed upflow.
AIR DELIVERY
The variable speed, direct drive blower
motor, has sufficient airflow for most
heating and cooling requirements, will
switch from heating to cooling speeds on
demand from room thermostat. The
blower door safety switch will prevent or
terminate furnace operation when the
blower door is removed.
SECONDARY HEAT EXCHANGER
The XV 90 has a special type 29-4C™
stainless steel secondary heat
exchanger to reclaim heat from flue
gases which would normally be lost
outside.
STYLING
Heavy gauge steel and “wrap-around”
cabinet construction is used in the
cabinet with baked-on enamel finish for
strength and beauty. The heat exchanger
section of the cabinet is completely lined
with foil faced fiberglass insulation. This
results in quiet and efficient operation
due to the excellent acoustical and
insulating qualities of fiberglass. Built-in
bottom pan and alternate bottom, left or
right side return air connection in vertical
position.
FEATURES AND
GENERAL OPERATION
The XV 90 High Efficiency Gas Furnaces
employ a Hot Surface Ignition system,
which eliminates the waste of a constant
burning pilot. The integrated system
control lights the main burners upon a
demand for heat from the room
thermostat. Complete front service
access.
a. Low energy power venter.
b. Vent proving differential switch.