Empire Comfort Systems RB), GWT-50-2 Vent Safety Shutoff System, Proper Main Burner Flame

VENT SAFETY SHUTOFF SYSTEM

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 ßow to the main burner to "shut off" due to improper venting or a blocked ßue.

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 ßow to the main burner a qualiÞed 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.

Figure 8

PROPER MAIN BURNER FLAME

The correct ßame will be a short blue inner ßame with a much larger light blue outer ßame. The burner does not have a primary air adjustment. The ßame will be proper if the factory-set pressure and oriÞce are used. After the furnace has begun operating, cleaning of the burner may be needed for proper ßame, 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

PROPER PILOT FLAME

The correct ßame will be blue, extending past the thermopile. The ßame 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 ßame. 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 ßame. Examine the pilot ßame before and during each heating season.

Figure 10

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