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6.0 FURNACE OPERATION AND SETTINGS
SHUTTING FURNACE DOWN
POWER OFF
Turn off main power breaker or disconnect.
FUEL OFF
Shut off manual gas supply valve.
Always keep manual gas supply valve shut off if the burner is shut down for an extended
period of time.
RESTARTING FURNACE
Follow this procedure before restarting a unit that has been shut down for an extended period
of time.
INSPECTION
Have the furnace/system serviced and inspected by a qualified technician.
FUEL
Turn on gas supply and check that there are no leaks.
POWER
Turn on power and check that the furnace starts and operates as usual.
OPERATION
If the furnace/system fails to operate or operates in an unusual manner, call
your service technician. If the burner fails to operate at any time, call a
qualified burner technician.
6.1 BLOWER SETTING
Ensure power is off when adjusting blower setting. For heating, use the blower speeds to
obtain a temperature rise of 75 degrees F. The Lo blower speed can be used for air circulation
when neither heating nor cooling are required. Set blower speeds to match the installation
requirements
FAN & LIMIT CONTROL
Limit
185°F – Factory set
Fan On
45 seconds after the burner starts
Fan Off
Adjustable on board (see page 22)
THERMOSTAT ANTICIPATOR SETTING
Adjust to thermostat manufacturer’s instruction.
