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

NO

CONTROL LOC-OUT

DETECTED

 

 

RESET POWER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

YES

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

SPARK IGNITION OFF

 

 

REQUIRES AMANUAL

 

 

RESET (Opening/closing

FLAME MONITOR ON

 

 

 

 

door, power switch ON/OFF)

GAS VALVE ON

 

 

 

 

 

 

 

 

 

 

 

 

YES

FLAME IS LOST DUE TO

POWER OUTAGE, DOOR

 

 

OPEN

 

 

 

 

 

 

 

NO

 

 

 

 

 

 

 

FLAME IS ON UNTIL

 

THERMOSTAT OR TIMER

 

IS SATISFIED

 

 

 

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