– 40 –
The glo-bar ignitor circuit is made up of the following components: a gas valve with safety and main
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safety coil (resistance approximately 1,400 ohms) and a booster coil (resistance approximately 580
ohms). Both coils are needed to open the safety valve. Once energized, the safety coil alone will hold
the valve open. The main valve has a single coil (resistance approximately 1,300 ohms).
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When the control system calls for heat, the following circuits are energized:
1. L1 power is sent from the timer, through the outlet control and safety thermostats, to the gas valve.
2. Neutral circuit is from the dryer harness through the door switch and motor switch M2 to M1 to the
gas valve.
When the glo-bar is heating, the booster and safety coils are both energized and will open the safety
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the combustion chamber and ignite. The main coil, now in series with the glo-bar, causes the glo-bar
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booster coil is now also in series with the main coil and is essentially inoperative. Should a momentary
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detector cools and resets, in approximately 30 seconds.
IGNITOR
(GLOWING RED)
DETECTOR
MAIN
SAFETY
BOOSTER
L1
N
Ignitor On
IGNITOR
(NOT GLOWING)
DETECTOR
MAIN
SAFETY
BOOSTER
L1
N
Gas Valve Open
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