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UEZ-IOM (07-23) 1034347-I
Venter Motor
The venter motor (see Figure 27 for location) is assembled to the venter wheel and operates to provide combustion
airflow. Operation is controlled by the circuit board (see Figure 26). Refer to the Circuit Board (DSI Control Module)
section for details.
Flame Rollout Switch (Unit Sizes 055–110)
⚠ DANGER ⚠
If the manual-reset flame rollout switch activates, identify and correct the cause before resetting
the switch. Never bypass the flame rollout switch; hazardous conditions could result.
Unit sizes 055, 085, and 110 are equipped with a temperature-activated, manually-reset flame rollout switch (see
Figure 27 for location). The switch is factory-set and is non-adjustable. If the setpoint is reached, the switch interrupts
the electric supply to the combination gas valve. If the flame rollout switch activates, identify and correct the cause
before resetting the switch.
OPERATION
⚠ DANGER ⚠
• For your safety, read before operating. If you do not follow these instructions exactly, a fire or
explosion may result, causing property damage, personal injury, or loss of life.
• This appliance does not have a pilot. It is equipped with an ignition device which automatically
lights the burner. Do not try to light the burner by hand.
• Before operating, smell all around the appliance area for gas. Be sure to smell next to the floor
because some gas is heavier than air and will settle on the floor.
• WHAT TO DO IF YOU SMELL GAS:
a. Do not try to light any appliance.
b. Do not touch any electrical switch; do not use any phone in your building.
c. Leave the building immediately.
d. Immediately call your gas supplier from a phone remote from the building. Follow the gas
supplier’s instructions.
e. If you cannot reach your gas supplier, call your fire department.
• Use only your hand to turn the gas control ON/OFF knob on the combination gas valve. Never
use tools. If the valve ON/OFF knob will not turn by hand, do not try to repair it. Call a qualified
service technician. Force or attempted repair may result in a fire or explosion.
• Should overheating occur, or the gas supply control system fail to shut off the flow of gas, turn
off the manual gas valve to the appliance before shutting off the electrical supply.
• Do not use this appliance if any part has been under water. Immediately call a qualified service
technician to inspect the appliance and to replace any part of the control system and any gas
control which has been under water.
• All components of a gas supply system must be leak tested prior to placing equipment in service.
NEVER TEST FOR LEAKS WITH AN OPEN FLAME. Failure to comply could result in personal
injury, property damage, or death.
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