Whirlpool 4322452 manual Ignitor Spark

Refer to Figure 3-32 for the following sequence.

CONVENTIONAL BURNER

When a main burner control knob q is turned to the “lite” position, the gas valve r opens, and gas flows through the pressure regulator s into the manifold t through the open valve. As gas passes through the valve and its orifice, it is directed into the venturi u, where it mixes with primary air to create the proper mixture necessary for combustion.

At the same time, line voltage is applied through the ignitor switch v, to the ignitor spark module w, which produces high-voltage pulses to all of the spark ignitors x. The pulses cause a spark

yto occur between the spark ignitor electrode, and the ground strap (bracket) z. The gas and air mixture at the burner head, 11 flows through the three climber ports in the side of the head, and into the flash tube 12 . As gas flows through the flash tube, it is ignited by the spark. The combusted gas flashes back through the tube, and ignites the burner.

120 VAC

LINE VOLTAGE

HIGH

VOLTAGE

PULSES

	IGNITOR
7	SPARK
	MODULE
	8	10

9	SPARK	GROUND STRAP
	IGNITOR
		(BRACKET)
SPARK

PRESSURE

REGULATOR

3

IGNITOR SWITCH

FLOW

GAS

4

GAS

MANIFOLD

BURNER

FLASH

TUBE

12

11

CLIMBER

PORTS (3)

GAS FLOW

6	2	5
	GAS VALVE
		AIR	VENTURI
OFF	LITE	SHUTTER

GAS INLET

Figure 3-32

1

BURNER

CONTROL

KNOB

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