Dexter Laundry T-80 (Commercial) - Manual (Page 7)

D. Natural gas and liquefied petroleum gas fired dryers both operate in the same manner. When the
thermostat contacts are closed (indicating a demand for heat), the solid-state ignition control will automatically supply
energy to the spark gap and to the redundant gas valve. Spark will continue until a flame is detected by the sensing
probe, but not longer than 10 seconds. If the gas fails to ignite within 10 seconds the gas valve closes. It is then necessary to
interrupt electrical power to the ignition system before making another attempt at lighting the burners. This can
be done by opening the dryer door and allowing the dryer to come to a stop for 15 seconds, then closing the door
and actuating the push-to start button. The dryer will then repeat the ignition trial cycle.
9. MAIN BURNER ADJUSTMENT. The primary air shutter of each main burner must be properly adjusted for the
correct air-gas ratio. Adjust the shutter by closing it sufficiently to give a blue flame with a yellow tip. Next open the
shutter until the yellow tips are at a minimum. Securely lock each shutter in position by tightening the screw after
adjusting the shutter.
DRYER SHUTDOWN
1. SOLID STATE IGNITION MODELS. To render the dryer inoperative, turn off the main gas shut-off valve and
disconnect power to the dryer.
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