ADC service manual ML-175 / ML-190, American Dryer Corporation

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ML-175 / ML-190

Service Manual

Phase 6 / Phase 7

Microprocessor Controls

American Dryer Corporation

88 Currant Road

Fall River, MA 02720-4781

Telephone: (508) 678-9000 / Fax: (508) 678-9447

E-mail: techsupport@amdry.com

www.amdry.com

ADC Part No. 450431-3

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Contents American Dryer Corporation ML-175 / ML-190Date of Purchase Model no RESELLER’S Name Serial Numbers Retain This Manual in a Safe Place for Future ReferenceTable of Contents Safety Precautions Routine MaintenanceCleaning Important InformationInstallation Requirements Description of Parts Operational Service Check ProcedureCompressed Air Requirements Electrical and Gas RequirementsReversing Relay Panel Gas Burner AssemblySteam Coil and Damper System Steam Coil pH LevelRotational Sensor Assembly Idler Shaft AssemblySpeed Reducing Shaft Drive ShaftSail Switch Gas Models Only Main Door SwitchBurner Hi-Limit Gas Models Only Tumbler Hi-LimitLint Drawer Lint Drawer Switch Computer ControlsIntroduction Ignition Controls Page To Convert from Natural Gas to L.P. Gas ThermostatsTo Replace Burner Hi-Limit Thermostat Gas Models Only Front Panel and Main Door Assemblies Sail Switch Assembly Gas Models OnlyPulleys To Install New Main Door GlassTo Replace Front Panel To Replace Drive Shaft PulleysBearings Tumbler AlignmentTo Replace Motor Pulley To Replace Drive/Idler Shaft Pillow Block BearingsTo Replace Speed Reducing Shaft Bearings Rotational Sensor Switch ReplacementTo Replace Rear Tumbler Shaft Support Wheels Belts Basket and SupportMotors Impellor Lint Drawer AssemblyTo Replace Fan Shaft and/or Fan Shaft Bearings To Replace Lint ScreenTroubleshooting Diagnostic L.E.D. Display Failure Codes Phase 6 OPL System DiagnosticsBurner hi-limit safety thermostat is tripping Overload for impellor fan motor is trippingD. Display Indicator Number D. Display IndicatorsAIR AIR JET Output L.E.D. Indicator Optional FAN Blower Output L.E.D. IndicatorHT1 Heat Output L.E.D. Indicator Fuse Main Fuse Input L.E.D. IndicatorPhase 7 OPL System Diagnostics Technical Information Input / Output Board L.E.D. IndicatorsMotor Plate High and Low Voltage ExampleHow To Use a Manometer Using a ManometerData Label Tool List450431 ADC Part No 3 06/17/08