Whirlpool 4322452 - Manual (Page 42)

Page 3-24
PRESSURE
REGULATOR
GAS INLET
IGNITOR
SPARK
MODULE
AIR SHUTTER
GAS VALVE
IGNITOR SWITCH
VENTURI
BURNER
CONTROL
KNOB
GAS
MANIFOLD
SPARK
IGNITOR
BURNER CAP
TO SPARK
IGNITOR
SPARK
BURNER
BURNER FLAME
GAS FLOW
120 VAC
LINE VOLTAGE
GAS FLOW
HIGH VOLTAGE
PULSES
OFF
LITE
4
7
9
8
10
2
5
6
1
3
SEALED 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 mod-
ule w, which produces high-voltage pulses to all of the spark ignitors x. The pulses cause a
spark y to occur between the spark ignitor electrode, and the grounded burner cap z. The
gas and air mixture at the burner head is ignited by the spark, and a flame is produced at each
of the top burner ports.
Refer to Figure 3-33 for the following sequence.
Figure 3-33