ADC AD-410 - Manual (Page 117)

113
2. Direct Spark Ignition (DSI) System
a. Upon completing installation of the replacement
Direct Spark Ignition (DSI) module, reestablish
power to the dryer.
b. Start the drying cycle.
c. The ignition (DSI) module's L.E.D. indicator will
light "red" for up to approximately 1.5 seconds
(prepurge time).
d. The module's indicator light will then turn
“green.” The gas valve will be energized and the
ignitor probe will spark for approximately
8 seconds. The burner flame should now be
established.
e. With the burner flame on, remove the flame sensor
wire from the FS terminal of the DSI module.
f. The burner flame must shut off and the ignition
module must lock out with the DSI module's
indicator light "red."
e. Open main door. The dryer must stop and ALL indicator lights on the back side of the micro-
processor (computer) board must go out. (Refer to illustration on previous page [page 113].)
f. Try to restart the dryer with the main door open.
g. The microprocessor (computer) board's L.E.D. display must read "DOOR."
h. Close the main door and restart the dryer.
i. Functional check of microprocessor (computer) board is complete.
g Stop the drying cycle, with the flame sensor wire still removed, restart the drying cycle.
h. The ignition module must proceed through the prepurge, with the indicator light "red," the ignition trial time
of approximately 8 seconds, with the indicator light "green," and then proceed to lock out with the indicator
light "red."
i. Functional check of the Direct Spark Ignition (DSI) Module is complete.
1) Replace the flame sensor wire from the FS terminal to the DSI module.