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This appliance must be properly connected to a venting system. This
appliance is equipped with a vent safety shutoff system.
Warning: Operation of this wall furnace when not connected
to a properly installed and maintained venting system or
tampering with the vent safety shutoff system can result in
carbon monoxide (CO) poisoning and possible death.
This furnace is equipped with a manual reset vent safety switch. The
manual reset vent safety switch will cause gas flow to the main burner
to "shut off" due to improper venting or a blocked flue.
To reset the manual reset vent safety switch:
1. Remove outer casing.
2. Depress manual reset button. The manual reset vent safety switch
is located on the draft diverter.
3. Replace outer casing.
If the
manual reset vent safety switch continues to "shut off" the gas
flow to the main burner a qualified service person must be contacted to
inspect for improper venting, blockage in the vent pipe or the manual
reset vent safety switch for being defective.
The correct flame will be a short blue inner flame with a much larger light
blue outer flame. The burner does not have a primary air adjustment.
The flame will be proper if the factory-set pressure and orifice are used.
After the furnace has begun operating, cleaning of the burner may be
needed for proper flame, examine at least 2 times per season.
To clean burner ports, disconnect the gas supply to the valve. Remove the
burner assembly from the combustion chamber. Remove pilot burner from
main burner and then remove the main burner. Force water into the ports
and blow dry with vacuum cleaner air, or low pressure compressed air.
Figure 9
Figure 10
The correct flame will be blue, extending past the thermopile. The flame
will surround the thermopile just below its tip.
Natural gas pilots require adjusting when the inlet gas pressure is above
5" w.c. (1.245kPa). Remove the pilot cover screw on the control valve
and turn the adjustment screw clockwise to reduce flame. Replace
pilot cover screw to eliminate gas leaking at that control valve opening.
LP gas (propane) will not require adjustment.
After use, cleaning may be required for the proper flame.
Examine the pilot flame before and during each heating season.
Figure 8
VENT SAFETY SHUTOFF SYSTEM
PROPER MAIN BURNER FLAME
PROPER PILOT FLAME
WIRES FOR
ON/OFF DEVICE
