ADC AD-410 service manual MAN3405

Page 95

b.PLC (Programmable Logic Controller) Replacement

1)Discontinue electrical service to the dryer.

If there is an expansion module along side the main module carefully disconnect the ribbon cable connecting the two (2) units together.

2)Mark and identify the wires that will be removed for proper reinstallation.

3)To remove the Programmable Logic Controller (PLC) from the mounting rail, using a screwdriver, very carefully pull out the mounting clip on the bottom of the PLC and lift the unit out of the rail.

4)To replace the Programmable

Logic Controller (PLC), push in the top of the PLC into the rail and then snap in the bottom of the unit.

5) Replace the wires removed in Step #2.

MAN3405

If there was an expansion module along side the main module carefully reconnect the ribbon cable.

6)Reestablish electrical service to the dryer.

c.Relay Replacement

1)Discontinue electrical service to the dryer.

2)Remove hold down spring.

3)Remove relay from relay socket.

4)To install new relay, reverse above procedure.

d.Phase 5 Microprocessor Controller (computer) Replacement

1)Discontinue electrical service to the dryer.

2)Carefully unplug the 15-pin connector, the 6-pin connector, and the keypad (touchpad) connector.

3)Disconnect the "GRD" connector and the air jet spade connector. Disconnect optional Battery backup (if applicable).

4)Loosen and remove the two (2) screws securing the Phase 5 microprocessor (computer) and then remove the computer from the door.

5)To install new Phase 5 microprocessor (computer), reverse above procedure.

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Contents American Dryer Corporation Important Note to Purchaser Retain This Manual In a Safe Place For Future ReferenceFor Your Safety Page Table of Contents Section Troubleshooting AD-410 Reference Guide Base Section AD-410 Machine Operational Summary AD-410 Operator CONTROLS/INDICATORSControl Power On END of Cycle / Heater Fault Indicator / AIR JET AIR JET AD-410 Machine Operation Troubleshooting InformationLoad Tilted Unload TiltedDRY GAS Pressure If Both AIR Flow Switches are not Open AT this TimeImportant Information ONE 1 Burner will not Ignite During a Drying Cycle System Ladder DiagramONE 1 Burner will not Ignite AT the Beginning of a Cycle Lint Drawer / Guard Status Optional Sprinkler Control SignalsSolenoid Control Page What to do if YOU Smell GAS Explosion could ResultNational Electric Code ANSI/NFPA no -LATEST Edition StandardsLiquids CleaningSuggested Cleaning Schedule Monthly Lubrication Days After Installation and Every 6 Months Thereafter AdjustmentsGas Dimensions AD-410 with Inlet AIR Adapter Enclosure / AIR Supply / Exhaust Requirements Installation RequirementsElectrical Requirements and GAS Requirements Operational Service Check ProcedureDirect Spart Ignition DSI System COMPONENTS/FUNCTIONS Heat Section24 VAC Direct Spark Ignition DSI Module Repairable ADC Direct Spark Ignition DSI Operation Flow Chart Manometer Troubleshooting the Direct Spark Ignition DSI SystemMAN0677 Page If not, refer to the Second Visual Check on First Visual Check Second Visual Check Third Visual Check Are no Retries Leaks with a Flame Continuously Page Page Create a Potential Safety Hazard Page General Overview Steam Coil System OperationPage Page Page Page Sprinkler System Description Require any adjustment Page Page Supplies Before Servicing the Dryer MAN3169 Tilting System Description Page Tilting Pistons Page Page Page Page AIR JET Assembly Page Blower Squirrel Cage Fan Motor Assembly Leave enough movement for V-belt adjustment Page Important do not Overtighten V-BELTS Important do not Overtighten V-BELTS Page Page Filter and Regulator Assembly Door Systems Page Page Page Page Allow a full 72 hours for the silicone to cure Page Control and Electrical System Page Button does not Disable the High Voltage to the Dryer If the Opposite Side is not LEVEL, the Dryer will not Tilt ºC + Page Page Page Page Page Page MAN3405 Page Page Page Tumbler Basket System Important do not Over Tighten Turnbuckle Install new V-belts Tighten turnbuckle For Gear Reducer removal refer to Section d on page 99 Page Do not tighten 101 102 103 Troubleshooting Drive motor is not operating does not start Impellor fan motor is not operating does not start 107 108 Dryer operates but is taking too long to dry Excessive noise and vibration Dryer will not level from a tilt position Procedure for Functional Check Replacement Components 113 ADC450414 1- 05/27/99-25