IPSO DR50 User Manual download pdf (Page 25)

Page 25

DIRECT SPARK

IGNITION OPERATION

FLOW CHART

The DSI module is powered by a 24 volts AC suppled by a step-down trans-

former 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

BEGINS, GAS VALVE

MAIN BURNER

FLAME DETECTED

CONTROL LOC-OUT

RESET POWER

REQUIRES A

MANUAL RESET

(Opening/closing door,

power switch ON/OFF)

SPARK IGNITION

OFF FLAME MONI-

TOR ON GAS VALVE

FLAME IS LOST DUE

TO POWER OUTAGE,

DOOR OPEN

YES

FLAME IS ON UNTIL

THERMOSTAT OR

TIMER IS SATISFIED

YES

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IPSO DR50 User Manual Page 25