Whirlpool 4322452 manual AIR Shutter & Venturi

The Cooktop Burner Assembly controls the combustion of gas and directs its flame (see Figure

3-11). Burners are manufactured from galvanized steel and have common component parts:

1.An Air Shutter to control the amount of primary air to be mixed with the gas.

2.A Venturi to provide a pathway for gas to flow to the burner from the orifice. Air enters the burner through the venturi tube, and is used as a pathway for gas, as well as an area for gas and air to be mixed together for combustion.

3.A Burner Head to provide an exit for gas so it can be ignited. The exits are normally holes, or slots, called “burner ports.”

Burner Head

Figure 3-11

Air Shutter

Venturi

AIR SHUTTER & VENTURI

An inlet for primary air is provided before the gas supply reaches the burner port. This inlet is called an “air shutter” (see Figure 3-12). The air shutter is adjustable to allow a better adjustment of the air-gas mixture needed for combustion, and results in more efficient combustion.

	Venturi	= Gas
	(Constricting
		= Air
	Area)
Gas Inlet			Mixed Air &
			Gas Outlet
Adjustment
Screw	Adjustable
	Air Shutter	Expanding	Figure 3-12
	Primary Air	Area

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