American Dryer Corp ML-410 manual Natural GAS, Heat Circuit Operational Test a. Gas Models

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NOTE: Dryer can be stopped at any time by opening the main door or by pressing the “CLEAR/ STOP” key. To restart the dryer, press the “ENTER/START” key or a preprogrammed cycle key (i.e., “E”).

NOTE: Pressing keyboard (touchpad) key “A,” “B,” “C,” “D,” and “F” will also start the dryer. The six preprogrammed drying cycles (“A” thru “F”) have been stored in the Microprocessor (computer’s) memory. Refer to the Programming Manual supplied with the dryer for these preprogrammed cycles.

10.Check to insure that the tumbler (basket) starts in the clockwise (CW) direction. Additionally, check the direction of the blower motor to insure that it rotates in the counterclockwise (CCW) direction as viewed from the left side of the dryer. If it does, the phasing is correct. If the phasing is incorrect, reverse two (2) of the leads at L1, L2, or L3 of the power supply connections made to the dryer.

IMPORTANT: Dryer blower motor and impellor/fan shaft as viewed from the left side of the dryer must turn in the counterclockwise (CCW) direction, otherwise the dryer efficiency will be drastically reduced, and premature component failure can result.

11.Heat Circuit Operational Test a. Gas Models

1)When the dryer is first started (during initial start-up), the burners have a tendency not to ignite on the first attempt. This is because the gas supply piping is filled with air, so the dryer may have to be stopped and restarted several times for this air to be purged from the lines.

2)The dryer has two (2) burner boxes and each burner has its own Direct Spark Ignition (DSI) Module and Spark Ignition/Flame-Probe Assembly. If ignition is not established after first attempt, the heat circuit DSI Module will lockout until it is manually reset. To reset the DSI system, open and close the loading doors and restart the dryer (press “ENTER/START” key).

If one burner lights and the other does not, then the system will shut both burners off and the burner fault code will be displayed showing which of the two (2) burners failed to ignite.

NOTE: During the purging period, verify that ALL gas shut-off valves are open.

3)Once ignition is established, a gas pressure test should be taken at each gas valve pressure tap of the dryer to assure that the water column pressure is correct and consistent.

NOTE: Water column pressure requirements (measured at both gas valve pressure taps)...

NATURAL GAS ----

3.5 Inches Water Column (W.C.) - 8.7 mb.

L.P. GAS -------------

10.5 Inches Water Column (W.C.) - 26.1 mb.

IMPORTANT: There is no regular provided in an L.P. dryer. The water column (W.C.) pressure must be regulated at the source (L.P. tank), or an external regulator must be added to each dryer.

b.Steam Models

1)Check to insure that the steam damper is functioning properly.

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Contents QUE Faire SI Vous Sentez UNE Odeur DE GAZ What do YOU do if YOU Smell GASPour Votre Sécurité For Your SafetyFor Your Safety Page Table of Contents Air Blower Drive System Cleaning Adjustments LubricationML-410 Reference Guide Page ML-410 Machine Operational Summary ML-410 Operator CONTROLS/INDICATORSEND of CYCLE/AIR JET JOG Forward/Reverse Push-ButtonsML-410 Machine Operation Troubleshooting Information END of CYCLE/HEATER Fault IndicatorAIR JET Unload Tilted Load TiltedIf this selection does not operate ONE or Both Burners do not Ignite DRYImportant Information GAS PressureONE Burner will not Ignite During a Drying Cycle ONE Burner will not Ignite AT the Beginning of a CycleSystem Ladder Diagram Tumbler Temperature and HI-LIMIT InformationFront Level Switch Rear Level Switch Optional Sprinkler Control Signals Section What to do if YOU Smell GAS Safety PrecautionsStandards Specifications and Dimensions 410 Tilting Clearance Allow Ances DimensionsML-410 1 Door/2-Way Tilt ML-410 1 Door/2-Way Tilt MLS-410 1 Door/2-Way Tilt ML-410 1 Door/2-Way Tilt With Inlet Air Adapter Reassembly of Dryer Installation ProceduresMLG-410 1 Door/Forward Tilt with Sprinkler Important the Flex Hose Must not be Kinked MLG-410 1 Door/Forward Tilt With Sprinkler MLS-410 2 Door/2-Way Tilt Refer to Tilting Piston Reconnection View on MLS-410 2 Door/2-Way Tilt Fresh AIR Supply Requirements Exhaust Requirements Compressed AIR Supply System Page Electrical Requirements Electrical InformationOptional Automatic Piston Operated Load/Unload Doors Optional Sprinkler ValveMLG-410 Gas MLS-410 Steam Electrical Service SpecificationsMain Grounding GAS Information Type of Gas Technical Gas Data Gas SpecificationsPiping /Connections Page Steam Requirements High Pressure Steam InformationPage Steam Damper Air System Connections Air RequirementsAir Connections Air connection to system --- 1/8-inch N.P.T Steam Damper System Operation Water Supply Connection for Optional Sprinkler System Steam Damper Air Piston Flow Control Operation AdjustmentPreoperational Tests Heat Circuit Operational Test a. Gas Models Natural GASBasket Coating Preparation for OPERATION/START-UPShut Down Instructions Parts ServiceReturning Warranty Parts Returning Warranty CardsPage Cleaning Routine MaintenanceMonthly Lubrication AdjustmentsTumbler Basket Drive System Component System DescriptionsAIR Blower Drive System Safety DevicesTumbler Basket Manual Reset Hi-Limit Safety Thermostat Tumbler BasketSail Switches for Gas Dryers Only Steam Damper Actuator System Optional Sprinkler Circuit Components Optional Sprinkler System ComponentsRefer to the Dryer Nameplate for voltage rating information ML-410 Sprinkler Option Temperature Controller Settings ADC 113128 1- 03/13/00-25
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