Refer to Figure
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
IGNITOR
SPARK
MODULE
7 | HIGH VOLTAGE |
| PULSES |
BURNER CAP
PRESSURE
REGULATOR
3
FLOW GAS
10
120 VAC
LINE VOLTAGE
TO SPARK
IGNITOR
IGNITOR SWITCH
|
|
| GAS | |
4 | 6 |
| FLOW | |
2 |
| |||
GAS | 5 | |||
|
| |||
MANIFOLD |
| GAS VALVE |
|
9
SPARK
SPARK IGNITOR
8
BURNER
BURNER FLAME
GAS INLET
AIR SHUTTER VENTURI
OFF
LITE
Figure
1
BURNER
CONTROL
KNOB
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