American Dryer Corp AD-95 service manual Operational Service Check Procedure

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The dryer installation must meet the AMERICAN NATIONAL STANDARD, NATIONAL FUEL GAS CODE ANSI Z223.1-LATEST EDITION, as well as, local codes and ordinances, and must be done by a qualified technician, or Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION (for Electrical Connections).

NOTE: Undersized gas piping will result in ignition problems and slow drying and can create a safety hazard.

The dryer must be connected to the type of gas (natural or L.P.) indicated on the dryer data label. If this information does not agree with the type of gas available, contact the distributor who sold the dryer or contact the factory.

The gas input ratings shown on the dryer data label are for elevations up to 2,000 feet, unless elevation require- ments of over 2,000 feet were specified at the time the dryer order was placed with the factory. The adjustment for dryers in the field for elevations over 2,000 feet are made by changing the burner orifices. If this adjustment is necessary, contact the distributor who sold the dryer or contact the factory.

NOTE: Any burner changes must be made by a qualified technician.

C. Operational Service Check Procedure

1.Turn on electric power to the dryer.

2.To start dryer:

a.Display will read "READY"

b.Press "E" touch pad on the keyboard of microprocessor controller (computer).

c.The dryer will start and display will show "dRYING MANUAL CYCLE, 30 MIN REMAIN," then display the drum temp.

NOTE: Pressing touch pads A, B, C, D and F will also start the dryer. Six (6) preprogrammed drying cycles (A through F) have been stored in the computer's memory. (See computer operator's manual for details.)

3.Make a complete operational check of all the operating controls to assure that the timing is correct, temperature selection switches are functioning, etc.

4.Make a complete operational check of all safety-halted circuits: door switches, hi-limit thermostat, sail switch, cycling thermostats, etc.

5.For gas dryers a gas pressure test should be taken at the gas valve pressure tap of each dryer to assure that the water column pressure is correct and consistent.

NOTE: Water column pressure requirements (measured at the pressure tap on the gas valve body): Natural Gas - 3.5 to 4 inch water column

L.P. Gas - 10.5 to 11 inch water column.

6.If computer program changes are required, refer to the Phase 6 OPL Operator's Manual (ADC P/N 113022) for details.

7.The dryer should be operated through one complete cycle to assure that no further adjustments are neces- sary and that all components are functioning properly.

8.Check the electric service phase sequence. While the dryer is operating, check to see if the blower wheel is rotating in the proper direction. Looking from the front, the blower wheel should spin in the clockwise direction. If so, the phasing is correct. If the phasing is incorrect, reverse two (2) leads at connections L1, L2 or L3 of power supply to the dryer.

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Contents AD-95/ML-95 Retain This Manual In a Safe Place For Future Reference For Your Safety Page Table of Content Troubleshooting Section Safety Precautions Months Cleaning Weekly DaysLubrication AdjustmentsSeven Days after Installation and every 6 Months Electrical and Gas Requirements Enclosure, Air Supply, and Exhaust RequirementsOperational Service Check Procedure As of February 11 Prior to February 11 Control Panel MicroprocessorWith fuses With circuit breaker Reversing Relay PanelHSI Module Gas Models Gas Burner AssemblyBlower Motor and Impeller Drive MotorTaperlock Trantorque Drive Shaft Assembly Transtorque Taperlock Idler Shaft AssemblyBasket Tumbler Main Door SwitchHi-Limit Gas Models Only Sail Switch Gas Models OnlyLint Screen Automatic Reset ThermostatLint Drawer Switch Computer Controls ServicingTo Replace Keyboard Label Assembly HSI Ignitor Flame Sensor Probe Ignition ControlsTo Remove Flame Sensor Probe To Replace Main Burner Orifices To Test and Adjust Gas Water Column PressureTo Replace Gas Valve See burner illustration on To Replace Burner Tubes To Convert Natural Gas to L.P. GasTo Replace HSI Module Discontinue power to the dryerTo Adjust Sail Switch Sail Switch Assembly Gas Models OnlyTo Replace Sail Switch Front Panel and Main Door Assemblies To Replace Main Door SwitchTo Replace Main Door Assembly To Install New Main Door Glass as of October 24As of October 24 Prior to October 24 To Replace Main Door Hinge Block To Install new Main Door Glass prior of October 24To Replace Front Panel To Replace Drive Motor Pulley Pulleys To Replace Drive Shaft PulleyPage Tumbler Wheel Replacement on IdlerAssembly taper lock models To Replace Blower Shaft Pulley Tumbler Wheel Replacement on IdlerAssembly trantorque modelsTo Replace Blower Motor Pulley Basket AssemblyTo Replace Idler Shaft Pillow Block Bearing To Replace Drive Assembly Pillow Block BearingBelt Adjustment Motor to Drive Axle To Replace Impeller Motor Fan Shaft Drive To Replace Drive Motor V-BeltsMotors To Replace Front Thruster Wheels To Replace Blower Motor V-beltsImpeller Rear AccessTo Replace Lint Screen Lint Screen AssemblyTo Replace Lint Door Switch Drive motor runs, burner is on, but basket will not turn No display on computerComputer will not accept key pad entries Dryer will not start, but computer display indictors are onOverload for impeller fan motor is tripping Burner hi-limit safety thermostat is trippingThermal overload for drive motor is tripping There is excessive vibration coming from the basket Phase 6 OPL System Diagnostics Page E.D. Display Indicators E.D Display Indicator Number FAN Blower Output L.E.D. Indicator AIR AIR JET Output L.E.D. Indicator OptionalFuse Main Fuse Input L.E.D. Indicator Flame bURNER Control Fail Input L.E.D. Indicator E.D. Codes BURNER Flame Fail BURNER Safety FailDRUM Safety Fail BURNER Control FailComputer Logic and Wiring Diagram No Display Condition Blower motor does not operate, drive motor runs Drive motor reverses but does not forward, blower motor runsMain Door Condition Lint Door ConditionMicroprocessor Which Must be Reset Manually For example Technical InformationData Label HOW to USE a Manometer AD-95/ML-95 Tool List ADC450188 1- 01/14/99-25
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