American Dryer Corp MLG-460 manual Load Door Switch DS1B

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•BURNER DOOR SWITCHES DS4B-DS5B (Interlock 2)

These switches are located on the burner doors, and are utilized to verify that they are closed. Their signals are terminated in the Solenoid Junction Box and then fed to the Main Electrical Enclosure.

•LOAD DOOR SWITCH DS1B

These switches are located on the left center of the load doors, and is used to verify that the doors are closed. The signal from this switch goes through a disconnect plug, to allow for services of the tumbler (basket), and terminates in the Tumbler Junction Box (TB4).

•UNLOAD DOOR SWITCH DS2-B

This switch is closed on the right center of the unload doors, and used to verify that the doors are closed. The signal from the switch goes through a disconnect plug, to allow for service of the tumbler (basket), and terminates in the Tumbler Junction Box (TB4).

•BURNER FAN AIR PRESSURE SWITCH PRS4

This adjustable switch is located centrally in the burner section of the dryer. Its function is to monitor the Burner Fan Air Pressure, and signal the burner Controller Module Pin #6. This switch is terminated in the Solenoid Junction Box (TB2).

The following devices are used as a safety interlock to the Burner Controller. The devices have to be satisfied prior to burner ignition. The signal that flows through these devices terminate at Pin #7 on the Burner Controller.

•GAS HI PRESSURE and GAS LO PRESSURE SWITCH PRS1 & PRS2

These switches are housed in one enclosure, and are located in the left-center of the Burner Section. Their function is to monitor both HI and Lo gas pressure, and prevent ignition if the pressures do not fall in the correct range. The signals from these switches are terminated in Solenoid Junction Box, and transferred to the Main Electrical Enclosure.

•LINT CHAMBER AIR PRESSURE SWITCH PRS3

This switch, located at the rear left of the Base Section, is used to monitor the pressure of the Lint Screen Area. If this pressure is too low, caused by excessive lint or a defective switch the burner will not be allowed to ignite. The signal for this switch is terminated in the Base Junction Box, and transferred to the Main Electrical Enclosure.

•SIX (6) CHANNEL HIGH TEMPERATURE LIMITS SWITCH

This switch is located centrally on the Main Electrical Enclosure Panel and are used to shut down the burner in the event that a particular temperature has risen to level beyond the normal operating temperature of the dryer.

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Contents MLG-460 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Contents Service Parts Returning Warranty Cards Parts Returning Warranty PartsTroubleshooting TOC Section Safety Precautions What to do if YOU Smell GASPage Specifications SpecificationsSpecifications Installation Procedures Reassembly of DryerPage Page Location Requirements Internal AIR, Electric and Water Connections Page Page Page Page Page Left Drum Motor External Supply Connections Page Page Electrical Requirements Electrical RequirementsMLG-460 Page Fresh AIR Supply Requirements PRE START-UP Preparation for OperationRoutine Maintenance CleaningMonthly Component System Descriptions Page Page Main AIR Blower and Heat Reclaimer System Page Compressed AIR System Page Page GAS Burner and Ignition System Switch #2 Intermittent Pilot Page Page Page Page Page Page Page Safety Devices Door Open Service PartsReturning Warranty Cards WarrantyReturning Warranty Parts Page Troubleshooting Power Malfunctions Possible SolutionsProbable Causes No Control Power Blue Light Off Machine Main Power Shuts Down Blue Indicator Off 2CRB Sprinkler Circuit Description Page Front Panel Blue Light and RED Light on Possible Solutions General Description Unless the Water Valve to the Sprinkler is ClosedIntroduction Burner Controller Input Signal ComponentsBurner Ignition Burner Section Input Circuit Component DescriptionLoad Door Switch DS1B Output Signal Component Description Stop Detector Relay Contact SMD noGAS Fault Message gas system only Heater Fault Message Possible Solutions Page Page AIR Fault Message HI-TEMP Fault Message Possible Solutions Drum Fault Message Page Tumbler Basket Section Electrical Malfunctions Tumbler Basket Section Electrical ComponentsFollowing is for 2-Door Models only Rear Panel Control Problems Probable Causes Possible Solutions Unload 1 Selection Probable Causes PLC OUT PIN 7 = Unload Door Open PLC OUT PIN 10 = Front UPDoor Open Problem Drum Fault Message Malfunction Probable Causes Page Lint Drawer Proximity Switches Front Door SwitchRear Down Switch LS2 Base Section Electrical MalfunctionsLint Chamber Pressure Switch PS3 Tumbler Basket Tilt Problems Level FaultProbable Solutions Page Lint Screen Mechanism Problem Screen Fault Lint Chamber Air Pressure Problem AIR Fault Pendant Control Malfunctions Pendant Electrical ComponentsVerify Pendant Electrical Signals ML-460 Pendant Assembly Diagram Temperature Sensing Page Temperature Measurement and Sensing Problems Circuit Wiring to the Analog Input Module MotorsMotor Actuation Problems Probable Causes Motor Protection Device DescriptionsGAS Fault Screen FaultMotor Fault AIR Fault
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