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UNIT#17 cw-3

Horizontales
A safety control that determines when a pilot light is burning.
A type of air moving device that consists of a scroll, blower wheel, and shaft.
A burner that uses only the amount of air necessary for complete combustion in a furnace.
A small precisely sized hole through which gas fuel flows.
A small burner located near burner tubes that ignites the fuel and air mixture released into the burner tubes.
A round drum or tube that is located on a combustion chamber to make the products of combustion flow through it.
Verticales
A temperature-actuated switch that controls the blower motor of a furnace.
A control system that controls the flow of electricity to equipment, such as a furnace.
The pressure exerted by a column of water one inch in height.
A device that produces electricity when two different metals that are twisted together are heated.
A control that monitors the operation of a furnace.
A fan designed to create the correct amount of flow through a combustion chamber and to handle the products of combustion.
The force that squeezes air together.
A type of low excess air burner that introduces an air-fuel mixture to a burner face in small amounts or pulses.
An electronic combustion safety control device that determines when a flame is present by using the burner flame to conduct electricity.
A device that generates milli-voltage that is used with a special thermostat designed to operate with the low current levels.
A device that is located at the burners that produces a spark to ignite fuel.