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DIRECT SPARK
IGNITION OPERATION
FLOW CHART
The DSI module is powered by a 24 volts AC suppled by a step-down transformer in
series with eight safety interlocks:
A. Timer switching device (1)
B. Main door and lint door switches (2)
C. Sail switch (1)
D. Under basket and burner housing thermal safety switches (2)
E. Variable thermostat (1)
F. Push to start switch (1)
THERMOSTAT CALLS
FOR HEAT
IGNITION CYCLE BE-
GINS, GAS VALVE ON
MAIN BURNER FLAME
DETECTED
CONTROL LOC-OUT
RESET POWER
REQUIRES A MANUAL
RESET (Opening/closing
door, power switch ON/OFF)
SPARK IGNITION OFF
FLAME MONITOR ON
GAS VALVE ON
FLAME IS LOST DUE TO
POWER OUTAGE, DOOR
OPEN
NO
YES
NO
FLAME IS ON UNTIL
THERMOSTAT OR TIMER
IS SATISFIED
YES