ADC AD-310 service manual If Both AIR Flow Switches are not Open AT this Time, GAS Pressure

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When a “HEATER FAULT” occurs after the first twenty-five (25) seconds of the drying cycle, a “CLEAR/ STOP” will be sent to the Phase 5 Microprocessor Controller (computer), a “FILL” message will be displayed on the Phase 5 Microprocessor Controller’s (computer’s) display, and both the “HEATER FAULT” reset push- button and the “END OF CYCLE" light will flash.

NOTE: If the “HEATER FAULT Reset Push-Button” is pressed any time during the PLC (Programmable Logic Controller) controlled cool down cycle, the machine will come to a stop since the machine is being attended to by a qualified operator.

“HEATER FAULT” occurs during the following conditions:

Front and/or rear or both air flow switches are in the closed position at the start of a drying cycle.

IMPORTANT: At the start of a drying cycle, the tumbler will begin to turn and a few seconds there- after, the “FAN “ signal will be asserted.

IF BOTH AIR FLOW SWITCHES ARE NOT OPEN AT THIS TIME THE

BLOWER WILL NOT START and A “HEATER FAULT” WILL OCCUR.

Both HEATER FAULT Indicators” will flash and the machine will come to a complete halt/stop until the “HEATER FAULT" reset push-button is pressed.

ONE or BOTH BURNERS DO NOT IGNITE

The dryer has two (2) burner boxes. Each burner box has its own Gas Valve, Spark Ignitor/Flame-Probe Assembly, and DSI (Direct Spark Ignition) Module.

DSI (Direct Spark Ignition) Module

When the dryer calls for heat, and ALL dryer safety switches are satisfied, a 24 VAC control signal is supplied to both DSI (Direct Spark Ignition) Modules. The DSI Module L.E.D. (light emitting diode) indicators will light “red” for approximately 1.5-seconds of pre-purge, the L.E.D. indicators will light “green”. Each DSI Module will energize its’respective gas valve and provide an 8-second spark to its’ Spark Ignitor/Flame-Probe Assembly. The gas in both burner boxes should ignite. If ignition does not occur in one or both burners after 8-seconds, the flame will not be sensed by the Spark Ignitor/Flame-Probe Assembly and the DSI Module will go into the “LOCK-OUT” mode lighting the L.E.D. (light emitting diode) indicator(s) “red” continuously. THERE ARE NO IGNITION RETRIES BY THE DSI MODULE. Stop the dryer at this point and restart another drying cycle. It may take several restarts to clear the gas supply piping of air.

NOTE: “HEATER FAULT” will occur during the initial set up of the machine, indicating that the burners are not lighting due to air in the gas line.

GAS PRESSURE

The natural gas pressure supplied to the dryer must be between 6-inches and 12-inches of W.C. (water column) pressure. If the supply pressure is above 12-inches water column than an external regulator must be installed to reduce the gas supply pressure to between 6-inches and 12-inches of water column.

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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-310 Reference Guide Base Section AD-310 Machine Operational Summary AD-310 Operator CONTROLS/INDICATORSControl Power On END of Cycle / Heater Fault Indicator / AIR JET AIR JET AD-310 Machine Operation Troubleshooting InformationLoad Tilted Unload TiltedDRY GAS Pressure If Both AIR Flow Switches are not Open AT this TimeImportant Information System Ladder Diagram ONE 1 Burner will not Ignite AT the Beginning of a CycleONE 1 Burner will not Ignite During a Drying Cycle Optional Sprinkler Control Signals Solenoid ControlLint Drawer / Guard Status Page What to do if YOU Smell GAS Explosion could ResultNational Electric Code ANSI/NFPA no -LATEST Edition StandardsCleaning Suggested Cleaning ScheduleLiquids Monthly Lubrication Days After Installation and Every 6 Months Thereafter AdjustmentsGas Dimensions Obligation Page ADG-310 Gas Non-Tilt 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 SystemPage Page Page 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 Prior to November 14 As of November 14 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 MAN3405 Page Page Page Tumbler Drive System Important do not Over Tighten Turnbuckle Install new V-belts Tighten turnbuckle Page 100 Do not tighten 102 103 104 Troubleshooting Drive motor is not operating does not start Impellor fan motor is not operating does not start 108 109 Dryer operates but is taking too long to dry Excessive noise and vibration Dryer will not tilt Procedure for Functional Check Replacement Components 114 ADC450413 05/11/99-25 01/31/00-5

AD-310 specifications

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