10
Midco
International
Inc.
8471 15
MADE
in the
USA
Part 2 Service
The Electronic Control is a 24 volt AC, solid state electronic device that automatically ignites and
monitors the fl ame. It has an integral high voltage transformer and, upon fl ame startup, applies high
voltage to the spark electrode and 24V to the Main Automatic Gas Valve. When the fl ame is proven,
the spark is terminated and the burner run continues.
- If the fl ame is not proven within 6 seconds, or if the proof of fl ame is lost during the burner run and
not re-established within 6 seconds, the Control will shut off the Main Automatic Gas Valve and LOCK
OUT. To reset the Control for restart, turn off the Burner Switch or Timer for at least 30 seconds and
then turn back on.
- If the Electronic control is changed, the replacement must be identical as to the make and model
number, or must be an authorized substitute.
WARNING: Explosion hazard. Do not use this device if it gets wet. It can malfunction
and cause serious injury or death. Replace any device that has been wet.
__________________________________________
XIII Electronic
Control System
Figure 4
General Burner Assembly
Figure 5
Ignitor and Flame Sensor Assembly