9Begins Pilot Trial For Ignition and turns on PTFI LED
9The pilot gas solenoid valve is opened, the spark igniter begins sparking, and the flamerod sensor watches for flame initiation
9When flame is established, the FLAME LED is illuminated and main valve opens and the FSC powers the Maxitrol system and gas flow begins modulating
9The FSC monitors the flame while the Maxitrol system adjusts to the selected temperature
•The Maxitrol system checks the discharge air temperature (and the room temperature for the Maxitrol
44)and regulates the gas going to the burner to satisfy the temperature setting. The Maxitrol system will modulate the main burner gas from 100% down to 5% as needed.
Optional Remote Panel Circuit
Power
Supply From
Heater
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"Power" Light |
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Panel is |
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Powered |
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Power is Sent to |
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Heater to Open |
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Damper (if |
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provided) and |
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Start Blower |
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Intake Air is |
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| Intake Air |
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| "Vent" |
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| Thermstat is |
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Thermostat |
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| "Heat" |
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| Thermostat |
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| Heat Circuit is Energized |
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| Heat Circuit is Energized |
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| "Burner On" Light Illuminates with |
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| "Burner On" Light Illuminates with |
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| proper flame. |
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| proper flame. |
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| "Flame Failure" Light illuminates |
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| "Flame Failure" Light illuminates |
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| if proper flame is not established |
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18