American Standard Condensing Gas Furnaces Fan Assisted Combustion System Upflow Horizontal and Downflow Horizontal - Manual (Page 7)

Pub. No. 32-5022-10 Page 7
To light furnace.
will open and burners will ignite.
8. When thermostat is satisfied, main burners will extinguish.
9. If main burners fail to ignite, lower thermostat setting or
disconnect electrical supply, wait 5 minutes, raise thermostat
setting above indicated temperature.
10. If furnace will not light, turn “OFF” all gas and electricity to
unit and call servicer or gas supplier.
For complete shutdown.
Turn gas cock knob on main gas valve to “OFF” position. Discon-
nect electrical supply to unit.
CAUTION: If this is done during the cold weather months,
provisions must be taken to prevent freeze-up of all water pipes
and water receptacles.
Whenever your house is to be vacant, arrange to have someone
inspect your house for proper temperature. If your furnace
should fail to operate, damage could result, such as frozen water
pipes.
Flame Roll-out Device.
All models are equipped with a fusible link located near the
burners. In case of flame roll-out, the link will open (melt) and
cause the circuit to open which shuts off all flow of gas.
TOP VIEW OF LEFT SIDE PIPING
AUTOMATIC GAS VALVE
WITH SHUTOFF
DOWNFLOW FURNACE Manual Main Gas Shut-off Valve May Be Located on the Right or Left Side
Lighting instructions.
Your furnace is equipped with a hot surface direct ignition
device.
WARNING.
Do not attempt to manually light the furnace.
1. Please read all safety information in this book before operating
furnace.
2. Set thermostat to lowest setting. Turn off all electric power to
furnace.
3. Remove control access panel.
4. Turn gas cock knob on main gas valve with unit clockwise to
“OFF” position. If external gas cock is used, turn to “OFF”
position. Allow 5 minutes for any gas within the unit to escape.
LP gas being heavier than air may require forced ventilation. If
you smell gas STOP! Follow the “What To Do If You Smell Gas”
instructions on the front cover of this book. If you don’t smell gas,
go to next step.
5. Turn gas cock knob counterclockwise to “ON” marker.
6. Replace control access panel.
7. Turn on main electrical supply and set thermostat to desired
setting. Combustion blower will start and ignition device will
start to heat up. After approximately 15 seconds main gas valve
NOTE THE LOCATION OF THE MANUAL MAIN GAS SHUTOFF VALVE FOR YOUR FURNACE.
Have your installer or servicer show you the location if you have any questions.
Your Gas Valve Shutoff May Be
MANUAL OR ELECTRIC SWITCH
GROUND
UNION
JOINT
AUTOMATIC GAS VALVE WITH SHUTOFF
MAIN
MANUAL
SHUTOFF
VALVE
DRIP
LEG
Switch Toggles
"ON" or "OFF"