ADC AD-200 - Manual (Page 25)

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B. TROUBLESHOOTING THE DIRECT SPARK IGNITION (DSI) SYSTEM
NOTE: The troubleshooting information provided in this manual is intended for use by qualified service
technicians only. OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment
or specified in the AD-200 Phase 7 Non-Tilting Installation/Operator’s Manual (ADC Part
No. 112142) included with the dryer.
IMPORTANT: UNDER NO CIRCUMSTANCES SHOULD ANY SAFETY OR HEAT
CIRCUIT DEVICES EVER BE DISABLED.
THE FOLLOWING PIECES OF TEST EQUIPMENT WILL BE REQUIRED TO
TROUBLESHOOT THIS SYSTEM WITH MINIMAL TIME AND EFFORT
Available From ADC
MANOMETER
Used To Measure Gas Pressure In Inches
Of Water Column (W.C.)
DSI IGNITOR GAP FEELER GAUGE
(1/8” [3.175 mm])
Used For Checking Gap Between Ignitor/
Flame-Probe Assembly and Spark Electrode
Available From ADC
MULTIMETER/VOLTMETER
For Measuring Voltage