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American Dryer Corp WDA-385 service manual D. Computer Logic and Wiring Diagram

Models: WDA-385

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D. Computer Logic and Wiring Diagram

D. Computer Logic and Wiring Diagram

1.Operator inserts coin.

2.Operator enters desired selection(s) ...

3.Information entered is sent to the micro-controller via the keyboard ribbon.

4.The input information is sorted/processed and executed by the micro-computer chip.

5.The micro-computer output signal activates the contactors and DSI module which control machines functions.

NOTE: When contacting American Dryer Corporation with electrical questions, please have on hand the correct wiring diagram number for your particular machine.

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American Dryer Corp WDA-385 service manual D. Computer Logic and Wiring Diagram

Contents

121396MFM/tf Service ManualADG-385/WDA-385 1996 thru“IMPORTANT NOTE TO PURCHASER” Retain This Manual In A Safe Place For Future ReferenceCHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION VERIFY PROPER OPERATION AFTER SERVICINGDRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR THE DRYERSFOR YOUR SAFETY Important Information Table of ContentsMaintenance Installation RequirementsTechnical Information Trouble ShootingSECTION A. Safety PrecautionsImportant Information A. Cleaning Routine MaintenanceSECTION C. Lubrication B. AdjustmentsA. Enclosure, Air Supply, and Exhaust Requirements Installation RequirementsSECTION B. Electrical and Gas Requirements C. Operational Service Check ProcedurePage C. Coin Box and Vault Description of PartsA. Control Panel B. Control BoxE. Lint Coop D. Main Door SwitchF. Tumbler G. Tumbler Bearing and Pulley Arrangement I. Motor AssemblyH. Idler Bearing K. Sail Switch J. Temperature SensorsM. Non-Reversing Contactor 3Ø Motor L. Motor Contactor 1Ø MotorN. Hi-Limit Thermostat Servicing To Replace Control Panel AssemblySECTION To Replace Keypad refer to illustration above To Replace ComputerTo Replace Coin Acceptor To Remove Optic SwitchTo Replace Motor Contactor 2-Pole, 24VAC To Replace Microprocessor Temperature Sensor ProbeNOTE DO NOT remove screws A. Burner Controls Gas To Replace Gas Valve To Replace Spark IgnitorTo Test and Adjust Gas Water Column Pressure To Replace Main Burner Orifices See Chart On Following PageNEVER TEST FOR LEAKS WITH A FLAME To Replace Burner TubesTo Replace DSI Module B. Thermostats and Temperature SensorTo Replace Hi-Limit Thermostat 330º To Remove The Temperature Sensor or High Heat Protector To Replace Sail Switch C. Sail Switch AssemblyTO REPLACE MAIN DOOR ASSEMBLY STEEL DOOR To Adjust Sail SwitchTo Replace Main Door Switch Steel Door D. Front Panel and Main Door AssembliesTO INSTALL NEW MAIN DOOR GLASS NOTE Identify location of each wire for correct reinstallation To Replace Front PanelTo Replace Tumbler Pulley E. Tumbler and Bearing Assembly Remove backguard to access assemblyNOTE Check belt alignment before operating dryer IMPORTANT LOCTITE NOW BEING USED To Replace Rear Tumbler BearingNOTE Check alignment of pulleys before operating dryer To Replace The Front Tumbler Bearing NOTE Check tension and alignment of belts before operating dryer F. Idler and Bearing AssemblyTo Replace Idler Pulley Remove backguard to access assemblyG. Drive Pulley To Replace Idler BearingTumbler Alignment lateral H. Tumbler basket Tumbler Alignment verticalNOTE Identify location of each wire for correct re-installation To Replace The Tumbler and/or Tumbler SupportREMOVED, A GEAR PULLER MAY BE NECES IMPORTANT LOCTITE NOW BEING USEDLOCTITE ADHESIVE HAS BEEN USED TO SECURE SET SCREWS AND BEARINGS IN PLACE. ONCE SET SCREWS HAVE BEENI. V-Belts refer to illustration in Sections I, J and K V-Belt Tension Adjustment-Tumbler To IdlerV-Belt Tension Alignment - Motor To Idler L. Lintscreen To Replace Lintscreen To Replace V-BeltsJ. Motor To Replace Motor K. ImpellerSECTION Trouble ShootingA. Phase 5 Coin System Diagnostics Diagnostic L.E.D. Display Failure CodesMicroprocessor Controller Relay Output L.E.D. Indicators L.E.D. Display IndicatorsNOTE If the dryer is started the L.E.D. display indicator dots are on and there are no outputs heat and/or motor output L.E.D.s are off and the dOOr input L.E.D. is on, the fault is in the Phase 5 coin microprocessor controller computer itself. If the failure was elsewhere i.e., dryers door switch circuit the L.E.D. display would read dOOr if a keyboard entry was attempted. If the L.E.D. display indicators are on and the door L.E.D. input and motor/heat output L.E.D.s are on and the motor and/or heat is not active ON, then the problem is not the door switch circuit or the Phase 5 coin microprocessor controller the problem is else where in the dryer B. No Heat Condition Page C. No Start Condition D. No Display Condition Page E. dSFL Display Condition F. dOOr Display Condition A. Data Label Technical InformationSECTION B. Using A Manometer C. L.E.D. Display Codes D. Computer Logic and Wiring Diagram including ALL revisions of the number listed below B672611 Diagrams for this book are as follows1- 01/08/98-50 ADC4501792* 05/21/98-50