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the furnace is installed. Do not
store anything around the furnace
that could block the flow of fresh air
to the unit. Your installation may
receive air from the inside heated
space., from the outside, from the
SYSTEM OPERATION INFORMATION
1. Keep the air filters clean. Your
heating system will operate more
efficiently and provide better
heating, more economically.
2. Arrange your furniture and drapes
so that the supply air registers and
the return air grilles are
unobstructed.
3. Close doors and windows. This will
reduce the heating load on your
system.
4. Avoid excessive use of kitchen
exhaust fans.
5. Do not permit the heat generated
by television, lamps, or radios to
influence the thermostat operation.
6. If you desire to operate your
system with constant air
circulation, please ask advice from
a qualified installer, service agency
or the gas supplier.
During the heating season the
operation of the warm air furnace is
automatic. Your qualified installer,
service agency or the gas supplier has
provided a wall mounted thermostat
which is sensitive to the change in
temperature of the air moving around
the thermostat. Your thermostat will
have switches to select some or all of
the following functions:
HEAT - Turns heating on when
temperature drops below the desired
temperature.
COOL - Turns cooling on when
temperature rises above the desired
temperature.
AUTO - Turns cooling or heating on as
required to maintain the desired
temperature.
OFF - Turns heating and cooling
modes off. (The blower may still run in
the FAN-ON position.)
FAN-ON - Turns the blower on for
continuous operation.
FAN-AUTO - The blower cycles on and
off with cooling or heating operation.
2
attic or crawl space. Whenever
adding insulation, be sure the air
supply openings are not covered.
7. Do not use this furnace if any part
has been under water. Immediately
Figure 1. Burner Compartment, showing location of Gas Controls
MANUAL GAS
VALVE
4 TO 5 FEET
ABOVE FLOOR
REQ'D BY SOME
UTILITIES
DIRECT SPARK IGNITOR
4 TO 5 FEET
ABOVE FLOOR
REQ'D BY SOME
UTILITIES.
DRIP LEG
DIRECT SPARK IGNITOR
FLAME SENSOR
MANIFOLD
FOR YOUR SAFETY READ BEFORE OPERATING
WARNING
!
IF YOU DO NOT FOLLOW THESE INSTRUCTIONS EXACTLY, A FIRE OR
EXPLOSION MAY RESULT CAUSING PROPERTY DAMAGE, PERSONAL
INJURY OR LOSS OF LIFE.
NOTE: Read and follow the Safety Information, Operating Instructions and
Instructions To Turn Off Gas To Appliance located on the furnace. This label
will have specific information regarding the furnace and its gas controls.
TYPICAL GAS CONTROL VALVE
ELECTRIC IGNITION
The gas control lever or knob has
"ON" and "OFF" positions only (see
Figure 2). This furnace is equipped
with an ignition device which
automatically lights the burners. Do
not try to light the burners by hand.
B. BEFORE OPERATING smell all
around the appliance area for gas. Be
sure to smell next to the floor because
call a qualified installer, service
agency or the gas supplier to
inspect the furnace and to replace
any part of the control system and
any gas control which has been
under water.
UNION
DRIP LEG
BURNERS
MANUAL GAS VALVE
UNION
DUCT
BURNERS
GAS VALVE
some gas is heavier than air and will
settle on the floor.
WHAT TO DO IF YOU SMELL GAS
• Do not try to light any appliance
• Do not touch any electric switch; do
not use any phone in your building.
• Immediately call your gas supplier
from a neighbor's phone. Follow the
gas supplier's instructions.
• If you cannot reach your gas
supplier, call the fire department.
GAS VALVE
MANIFOLD
FLAME
SENSOR
STA-0764-01
ST-A0763-01
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