FOR PROPANE (LP) GAS
For furnaces operating on propane gas, please review the
following warnings before use.
To avoid property damage, personal injury or death due to
explosion or fire, install a gas detecting warning device.
Since the odorant in propane gas can be reduced by iron
oxide (rust), a gas detecting warning device is the only
reliable method to detect propane gas leaks.
If the gas furnace is installed in a basement, and
excavated area or a confined space, it is strongly
recommended to contact a propane supplier to install a
gas detecting warning device in case of a gas leak.
Since propane gas is heavier than air, any leaking can
settle in low areas or confined spaces.
Propane gas odorant may fade, making the gas
undetectable except with a warning device.
An undetected gas leak will create a danger of explosion
or fire. If the presence of gas is suspected, follow the
instructions on the cover of this manual. Failure to do so
could result in serious personal injury or death.
There are many types and styles of thermostats, but operation is
usually similar. Be sure to become familiar with your thermostat.
The simplest type of thermostat only starts and stops the furnace
to maintain the desired room temperature. The most widely used
types will control both heating and cooling functions and will
have a fan switch with Auto and On settings. On Auto, the
circulating air blower will cycle on and off with the furnace, but if
it is switched to On, it will run continuously regardless of whether
or not heating or cooling is being provided.
In addition, there are thermostats which automatically switch from
heating to cooling mode and those with night setback capability.
The night setback, or multiple setback type of thermostat, allows
for a different temperature at night or during the day when no one
is at home. Programmable thermostats will allow for more control
and tailoring of the heating and cooling functions. The level of this
control depends on the type of thermostat applied.
Room Temperature Thermostat
A. Cool/Heat temperature control dials
B. Fan switch
C. Cool/Heat switch
System only cools; fan cycles off and on.
System only cools; fan runs all the time.
System only heats; fan cycles off and on.
System only heats; fan runs all the time.
No heating or cooling; fan runs all the time.
To avoid property damage, personal injury or death due
to fire, do not remove any internal compartment covers
or attempt any adjustment. Electrical components are
contained in both compartments. Contact a qualified
service agent at once if an abnormal flame appears.
Keep both doors in place except for inspection and maintenance.
An interlock switch prevents furnace operation if the blower door
is not in place.
1. Close the external manual gas shutoff valve.
2. Turn off the electrical power to the furnace.
3. Set the room thermostat to the lowest possible setting.
4. Remove the burner compartment door.
5. This furnace is equipped with an ignition device that
automatically lights the burner.
NOTE: Do not try to light the burners by hand.
6. Move the furnace's gas control valve On/Off switch to the
7. Wait 5 minutes to clear out any gas. Check for a gas odor,
including near the floor.
8. If a gas odor is detected following the 5-minute waiting
period, immediately leave the building and call your gas
supplier or the fire department.
9. If no gas odor is detected after 5 minutes, move the furnace's
gas control valve On/Off switch to the ON position.
10. Replace the burner compartment door.
11. Open the external manual gas shutoff valve.
12. Turn on the electrical power to the furnace.
13. Adjust the thermostat to a setting above room temperature.
14. After the burners are lit, set the thermostat to the desired
15. If the furnace will not operate, see "Furnace Shutdown" and
call a qualified person.