American Dryer Corp MDG30V installation manual

Page 51

e.Open main door. The dryer must stop and ALL output indicator lights on the back side of the microprocessor controller (computer) board must go out. (Refer to the illustration on the previous page.)

f.Try to restart the dryer with the main door open.

g.The microprocessor controller (computer) board’s light emitting diode (L.E.D.) display must read “DOOR.”

h.Close the main door and restart the dryer.

i.Functional check of microprocessor controller (computer) board is complete.

2.For Models With Johnson Controls Direct Spark Ignition (DSI) Module (G760) Theory Of Operation:

Start the drying cycle. When the gas burner ignites within the chosen trial for ignition time (6-seconds), the flame sensor detects gas burner flame and signals the DSI module to keep the gas valve open...as long as there is a call for heat. The DSI module will “LOCKOUT” if the gas burner flame is not sensed at the end of the trial for ignition period. The trial for ignition period will be repeated for a total of three (3) retries/ trials (the initial try and two [2] more retries/trials). If the flame is not sensed at the end of the third retry/ trial (inter-purge period of 30-seconds) the DSI module will “LOCKOUT” (L.E.D. flashes).

A steady L.E.D. indicator indicates normal operation.

No L.E.D. indicator indicates a power or an internal failure has occurred.

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Contents MDG30V Important Note to Purchaser Retain This Manual In a Safe Place For Future ReferenceFor Your Safety Page Table of Contents Section Procedure for Functional Check of Replacement Receiving and Handling Important InformationExplosion could Result Safety PrecautionsPage Specifications SpecificationsMDG30V UNPACKING/SETTING UP Installation ProceduresLocation Requirements Dryer Enclosure Requirements Fresh AIR Supply Requirements Exhaust Requirements Single Dryer Venting Vertical Venting Multiple Dryer Common Venting Illus. C Important Venting Reminders Electrical Requirements Electrical InformationMust be Provided Single-Phase 1ø Wiring Connections/HookupSINGLE-PHASE 1Ø Electrical Connection Leads Important a Circuit Servicing Each Dryer Must be Provided MDG30V GAS Service Wire Approx Circuit Phase AMP Draw Voltage BreakerGAS Information Type of GAS Page Page Preparation for OPERATION/START-UP GAS Models only Preoperational TestsCoin Models Preoperational InstructionsPage OPL Models Shut Down Instructions SERVICE/PARTS Information ServiceParts Warranty Information Returning Warranty CardsWarranty Routine Maintenance CleaningSuggested Cleaning Schedule Lubrication AdjustmentsLint Drawer Removal Standards TroubleshootingBlower motor is not operating does not start Microprocessor controller computer display reads dSFL GAS Models only Dryer operates but is taking too long to dry Excessive noise and/or vibration Data Label Data Label InformationSerial Number Procedure for Functional Check Replacement Components Page 113365 1 04/22/02-25
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