Sequence Of Operation - Brant Radiant Heaters AVS-40N Instructions Manual

AVS Series
This heater must be installed and serviced by trained gas installation and service
personnel only.
Do not bypass any safety features or the heater's built in safety mechanisms will
be compromised.

Sequence of Operation

Starting Circuit: Upon a call for heat, the fan and transformer is energized by 120VAC from the
thermostat/controller. Once operational static pressure is achieved, the differential pressure switch
closes, sending power to the ignition module. After a seven-second pre-purge, the spark igniters
and the solenoid of the gas valve are simultaneously energized. The trial for ignition is 15 seconds.
Running Circuit: After ignition, the control monitors burner flame through the flame sensors. If sense of
flame is lost, the control immediately sparks (identical to the starting sequence). If flame sense is not
established within 15 seconds, the heater will attempt two (2) additional ignition sequences before
proceeding to lockout mode. The control can be reset by briefly interrupting the power source.
WARNING
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4.0 Operation • Sequence of Operation