American Dryer Corp AD-25, AD-30 service manual To Convert from Natural to Liquid Propane L.P. GAS

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TO CONVERT FROM NATURAL TO LIQUID PROPANE (L.P.) GAS

1.Disconnect electrical power to the dryer.

2.Close ALL shutoff valves in dryer gas supply line.

3.Disconnect gas valve wiring.

NOTE: Identify location of each wire for correct reinstallation.

4.Break union connection (nut) between union shutoff and gas valve.

5.Loosen and remove screws from bracket holding the gas valve/manifold assembly to burner box.

6.Remove gas valve/manifold assembly from the dryer.

7.Unscrew main burner orifices and replace with L.P. orifices supplied.

NOTE: Use extreme care when removing and replacing orifices. THESE ORIFICES

ARE MADE OF BRASS, WHICH IS EASILY DAMAGED.

8.To convert gas valve for use with L.P. gas, refer to instructions included in kit envelope (#F92-0737) supplied.

9.Reverse procedure for reinstalling valve manifold assembly to the dryer.

IMPORTANT: External regulation of a consistent gas pressure of between 10.5 inches (26.1 mb) water column (W.C.) must be provided.

10. Open ALL shutoff valves and test for leaks.

IMPORTANT: DO NOT test for leaks with an open flame. Use soapy water solution or product intended for that purpose.

11. Operate dryer through one (1) complete cycle to ensure proper operation.

IMPORTANT: Conversion should be performed by competent technicians in accordance with local and state codes. Improper assembly or adjustments can cause hazardous condition.

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

NOTE: Use extreme care when removing and replacing orifices. THESE ORIFICES ARE MADE OF BRASS, WHICH IS EASILY DAMAGED.

12. Call ADC for L.P. conversion kits or the proper orifices for natural or L.P. gas.

450268-1

www.amdry.com

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Contents AD-25, 30, 50, 75 Phase 7.2 Non-Coin Retain This Manual in a Safe Place for Future Reference Table of Contents Explosion could Result Safety PrecautionsCleaning Routine MaintenanceLubrication AdjustmentsENCLOSURE, AIR SUPPLY, and Exhaust Requirements Installation RequirementsElectrical and GAS Requirements Operational Service Check Procedure Control BOX Computer Controls Main Door SwitchControl Panel Microprocessor Tumbler Lint Drawer SwitchLint Drawer Drive Motor and Blower Motor Tumbler Bearing and Pulley ArrangementIdler Bearing Steam Damper System Temperature Sensor Computer ControlsGAS Burner Electric Oven Sail Switch Electric and GAS ModelsCompressed AIR Requirements Reversing Relay Panel Motor Contactor 1Ø MOT orNON-REVERSING Contactor 3Ø MOT or HI-LIMIT Thermostat GAS and Electric Models only Controls Computer To Replace Control Panel AssemblyTo Replace Keypad Refer to illustration above To Replace ComputerTo Replace Motor Contactor 3-POLE, 24 VAC To Replace Computer Temperature Sensor ProbeTo Replace Spark Ignitor Burner Controls GASTo Replace Main Burner Orifices To Test and Adjust GAS Water Column W.C. PressureTo Replace GAS Valve American Dryer Corp 450268-1 Are Made of BRASS, Which is Easily Damaged To Convert from Natural to Liquid Propane L.P. GASTo Replace Direct Spark Ignition DSI Module To Replace Burner TubesSteam Controls InstallationTo Replace Piston To Replace Steam Coil Damper SystemTo Replace Steam Coil To Replace the Needle ValveTo Replace the 3-WAY Microvalve To Replace Oven Contactor Electrical Oven ControlsTo Replace Electrical Elements To Replace HI-LIMIT Thermostat 330º GAS, 290º Electric Thermostats and Temperature SensorTo Replace Sail Switch Sail Switch Assembly GAS and Electric ModelsFront Panel and Main Door Assemblies To Adjust Sail SwitchTo Replace Main Door Switch To Replace Front Panel To Replace Main Door AssemblyTo Install NEW Main Door Glass To Replace the Nylon Catch To Replace Main Door HingeTo Replace Tumbler Pulley Reversing Tumbler and Bearing AssemblyTo Replace Tumbler Pulley NON-REVERSING To Replace the Front Tumbler Bearing To Replace the Rear Tumbler BearingTo Replace Idler Bearing Idler and Bearing AssemblyTo Replace Idler Pulley Tumbler Alignment Vertical Drive PulleyTumbler Alignment Lateral To Replace the Tumbler AND/OR Tumbler Support Belt Tension Alignment Motor to Idler Belt Tension Adjustment Tumbler to IdlerBelts To Replace Motor NON-REVERSING MotorImpellor To Replace V-BELTSTo Replace Lint Screen Lint Drawer ScreenTroubleshooting Diagnostic L.E.D. Display Fault Messages Phase 7 NON-COIN System DiagnosticsINPUT/OUTPUT Board Light Emitting Diode L.E.D. Indicators American Dryer Corp 450268-1 Display reads Exhaust High Limit Fault. Refer to Display reads Sail Switch Closed Fault. Refer to 450268-1 Display reads Cycle Paused, Main Door Open. Refer to 450268-1 American Dryer Corp 450268-1 450268-1 American Dryer Corp 450268-1 450268-1 American Dryer Corp 450268-1 450268-1 Data Label Data Label InformationHOW to USE a Manometer Using a ManometerKeypad Layout NON-COIN S.A.F.E. System Check Procedure System ResetILLUS. #1 Static PressureILLUS. #3 Using a MagnehelicILLUS. #2 American Dryer Corp 450268-1 450268-1 ADC Part No 1 10/26/05

AD-25, AD-30 specifications

American Dryer Corporation (ADC) has long been a trusted name in the commercial laundry equipment industry. Among their notable offerings are the AD-30 and AD-25 dryers, which are engineered to provide exceptional performance, reliability, and efficiency.

The AD-30 dryer is designed for high-capacity laundry operations, making it an ideal choice for large businesses such as hotels, hospitals, and laundromats. With a maximum drying capacity of 30 pounds, the AD-30 features a robust construction that can withstand the demands of heavy usage. Its powerful airflow technology ensures quick drying times, improving productivity and minimizing energy consumption. The dryer is equipped with a microprocessor control that offers multiple cycle options and customizable settings, allowing operators to tailor each drying cycle based on the specific fabric types being processed.

On the other hand, the AD-25 serves smaller operations with a capacity of 25 pounds, making it an efficient choice for businesses with moderate laundry needs. Similar to the AD-30, it incorporates advanced airflow technology to enhance drying efficiency. The AD-25 also features easy-to-use controls and programmable settings, providing flexibility for various drying requirements. Both models come with an easy-to-clean lint filter that helps maintain optimal air quality and prolongs the life of the machine.

In terms of construction, both dryers are built with durability in mind. Their stainless steel exteriors are not only aesthetically pleasing but also resistant to corrosion, ensuring they remain in good condition over time. The design of these dryers incorporates vibration reduction systems to minimize noise during operation, contributing to a more pleasant working environment.

Energy efficiency is a hallmark of American Dryer Corp products, and both the AD-30 and AD-25 are no exception. They are designed to consume minimal energy while delivering maximum drying performance, which can lead to significant cost savings over time. Additionally, the dryers are engineered with safety features, including over-temperature protection and a non-reversible door to prevent accidents.

In summary, American Dryer Corp's AD-30 and AD-25 dryers exemplify the brands' commitment to providing quality, efficiency, and reliability in commercial laundry operations. With their advanced technologies and user-friendly features, these dryers are well-equipped to meet the diverse needs of the laundry industry.
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