Page 19
Pub. No. 41-5010-20
Operating Instructions
Lighting instructions.
Your furnace does not use a continuously burning pilot flame.
Therefore, manually lighting your furnace is not required. Your
furnace is equipped with an automatic ignition system. It uses a
hot surface ignition device that automatically lights the burners
each time the thermostat signals the furnace to start.
▲
WARNING
!
Do not attempt to manually light the furnace.
1. Please read all safety information in this book before operat-
ing furnace.
2. Set thermostat to lowest setting. Turn off all electric power to
furnace.
3. Remove the furnace front panel to gain access to the main
gas valve.
4. Turn gas cock knob clockwise or the toggle switch located on
the main gas valve inside the unit to “OFF” position (see illustra-
tion on this page). If external gas cock is used, turn to “OFF”
position (see illustration on next page). 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 or the toggle switch to
“ON” marker (see illustration on this page).
6. Replace the furnace front access panel.
To start the furnace.
NOTE:
The manufacturer of your furnace does not test any detec-
tors and makes no representations regarding any brand or
type of detector.
▲
WARNING
!
BODILY INJURY CAN RESULT FROM HIGH VOLTAGE ELEC-
TRICAL COMPONENTS, FAST MOVING FANS, AND COMBUS-
TIBLE GAS. FOR PROTECTION FROM THESE INHERENT
HAZARDS DURING INSTALLATION AND SERVICING, THE
ELECTRICAL SUPPLY MUST BE TURNED OFF.
Installing and servicing heating equipment can be hazardous due
to gas and electrical components. Only trained and qualified
personnel should install, repair or service heating equipment.
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
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.
MAIN GAS CUTOFF LOCATIONS
Untrained personnel can perform basic maintenance functions
such as cleaning and replacing filters. All other operations must
be performed by trained service personnel.
Parts and controls of this furnace are unique. Should service or
modification be required, be sure your servicer uses only factory
authorized parts, kits, or accessories for this furnace.
If you experience a problem with the operation of your furnace,
check the “Problem Solver” section of this manual before you call
for a possibly unneeded service call.
▲
WARNING
!
Improper installation, adjustment, alteration, service or
maintenance can cause injury or property damage. Refer to
the installation instructions provided with the furnace and
this manual. For assistance or additional information consult
a qualified installer, service agency or the gas supplier.
Outlet Pressure Boss
On/Off Switch
Inlet Pressure
Boss (opt.)
Regulator
Adjust
Your Gas Valve Shut-Off May Be
MANUAL OR ELECTRIC SWITCH
On/Off
ff Swi
Switch
ch
