American Dryer Corp AD-310 Phase 7 service manual Heat Section

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SECTION V

COMPONENT DESCRIPTION/REPLACEMENT

A. HEAT SECTION

The AD-310 dryer uses three (3) types of heat sources: natural gas, liquid propane (L.P.) gas, and steam. Natural gas and L.P. gas are not directly replaceable. The gas valves need to be modified to use other than the type of heat specified on the nameplate.

1.The ADG-310 gas dryers utilize a Direct Spark Ignition (DSI) module to monitor that a flame is established. If for some reason the flame signal is lost, the DSI module will shut off the gas valve and not retry ignition (no try to restart the flame). A spark of approximately 14,000 volts is used to establish a flame. The DSI module will turn the gas valve on and ignitor/flame-probe will spark for 8-seconds attempting a flame. Each time the dryer calls for heat the microprocessor controller (computer) will send a 24 VAC signal through the exhaust hi-limit, sail switch, and oven hi-limit. At that point, the DSI module will try for ignition.

DIRECT SPARK IGNITION (DSI) SYSTEM COMPONENTS/FUNCTIONS

Johnson (DSI) Control Module P/N 128935

ADC (DSI) Control Module P/N 128973

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Contents AD-310 Phase 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 AD-310 Reference Guide Base Section Explosion could Result SectionStandards Liquids CleaningAT 80 PSI 5.51 Bars Every 3 Months LubricationDays After Installation and Every 6 Months Thereafter AdjustmentsSpecifications and Dimensions Dimensions Obligation Obligation ENCLOSURE/AIR SUPPLY/EXHAUST Requirements Installation RequirementsElectrical and GAS Requirements Operational Service Check ProcedureDirect Spark Ignition DSI System COMPONENTS/FUNCTIONS Heat SectionVAC Direct Spark Ignition DSI Modules 225º F 107º C Thermostat Redundant Gas Valve First Visual Check Second Visual Check Third Visual Check Manometer Troubleshooting the Direct Spark Ignition DSI SystemPage Page Page First Visual Check Second Visual Check Third Visual Check With a Flame DSI Ignitor/Flame-Probe Assembly Adjustments Page Flash Green Continuously Page With a Flame DSI Ignitor/Flame-Probe Assembly Adjustments Page Light RED Continuously Page Made of Brass and can be Easily Damaged Createapotentialsafety HazardGeneral Overview Steam Coil System OperationPage Page Page Page Sprinkler System Description MAN3488 Page Supplies Before Servicing the Dryer Page Page Tilting System Description Page Page Page Page Page AIR JET Assembly Page Blower Squirrel Cage Fan Motor Assembly Page Page Important do not Overtighten V-BELTS Important do not Overtighten V-BELTS Page Page Regulator Operation FILTER/REGULATOR AssemblyDoor Systems Manual Doors Automatic Doors Page Page Page Control and Electrical System Ladder Diagram Page Button does not Disable the High Voltage to the Dryer Page ºC + ºC + ºK Page Page Page Page Page Page Tumbler/Drum SECTION. Serious Injury can Result Tumbler/Drum SECTION. Serious Injury can Result Basket Tumbler Drive System Important do not Overtighten Turnbuckle Important do not Overtighten Turnbuckle Page Page Important do not Overtighten Turnbuckle Page Page Page Phase 7 OPL System Diagnostics Inputs RED Outputs Green Fdrc RED L.E.D Lint RED L.E.D 100 101 Troubleshooting Drive motor is not operating does not start Impellor fan motor is not operating does not start 105 106 Dryer operates but is taking too long to dry Excessive noise and vibration 109 Procedure for Functional Check Replacement Components 111 ADC 450049 1- 09/14/00-25
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