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ADG-385/WDA-385
Service Manual
1996 thru 1998
American Dryer Corporation
88 Currant Road
Fall River, MA 02720-4781
Telephone: (508) 678-9000 / Fax: (508) 678-9447
E-mail: techsupport@amdry.com
121396MFM/tf ADC Part No. 450179
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Retain This Manual In A Safe Place For Future Reference American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product is properly maintained, it will provide many years of safe, efficient, and trouble-free operation. ONLY properly licensed technicians should service this equipment. OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation/operator's manual included with the dryer. WARNING: UNDER NO CIRCUMSTANCES
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IMPORTANT YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA (Occupational Safety and Health Administration) STANDARDS. CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGER- OUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING. CAUTION DRYER(
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FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOR AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE. DO NOT DRY MOP HEADS IN THE DRYER. DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation/operator's manual included with the dryer. Dryer(s) must not be installed or stored in an area where it will be exposed to water and/or weather. The wiring diagram for
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Table of Contents SECTION I Important Information A. Safety Precautions .......................................................................................................................................... 3 SECTION II Maintenance A. Cleaning .......................................................................................................................................................... 4 B. Adjustments ...............................................................................
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SECTION VI Trouble Shooting A. Phase 5 Coin System Diagnostics ................................................................................................................ 38 B. No Heat Condition ........................................................................................................................................ 41 C. No Start Condition ........................................................................................................................................ 4
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SECTION I Important Information A. Safety Precautions 1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. 2. Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the user smells gas. The instructions should be posted in a prominent location. 3. Dryer must be exhausted to the outdoors. 4. Although ADC's dryer is a very versatile machine, there are some articles, that due to fabri
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SECTION II Routine Maintenance A. Cleaning A program and/or schedule should be established for periodic inspection, cleaning, and removal of lint from various areas of the dryer, as well as throughout the duct work system. The frequency of cleaning can best be determined from experience at each location. Maximum operating efficiency is dependent upon proper air circulation. The accumulation of lint can restrict this airflow. If the guidelines in this section are met, an ADC dryer will provid
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AS REQUIRED In cleaning and care of the cabinet, avoid using harsh abrasives. A product intended for the cleaning of appliances is recommended. B. Adjustments SUGGESTED INTERVAL FUNCTION 6 MONTHS Motor and drive belts should be examined. Cracked or seriously frayed belts should be replaced. Tighten loose belts when necessary, and check belt alignment. 6 MONTHS Complete operational check of controls and valves. ALL safety devices (door switches, 6 MONTHS Complete operational check of sail swi
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SECTION III Installation Requirements Installation should be performed by competent technicians in accordance with local and state codes. In the absence of these codes, installation must conform to applicable AMERICAN & NATIONAL STANDARDS: National Fuel Gas Code ANSI Z223.1-LATEST EDITION and/or National Electric Code ANSI/NFPA No. 70-LATEST EDITION A. Enclosure, Air Supply, and Exhaust Requirements NOTE: The following information is very brief and general. For detailed description, refer to t
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B. Electrical and Gas Requirements It is your responsibility to have ALL electrical connections made by a properly licensed and competent electrician to assure that the electrical installation is adequate and conforms with local and state regula- tions or codes. In the absence of such codes, ALL electrical connections, material, and workmanship must conform to the applicable requirements of the National Electric Code ANSI/NFPA No. 70-LATEST EDITION. IMPORTANT: Failure to comply with these codes
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4.The dryer should be operated through one complete cycle to assure that no future adjustments are ALL components are functioning properly. necessary and that 5.For 3Ø motor models 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 connec
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SECTION IV Description of Parts A. Control Panel Lifting the control door will reveal the control panel assembly. Opening the control panel will allow access to the major components which include the coin acceptors, computer board, and keypad. The coin acceptor sends the signal to the computer that a coin has been inserted. The keypad inputs to the computer what temperature has been selected. The computer controls the entire operation of the machine. It accepts inputs and gives outputs to va
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D. Main Door Switch The main door switch is located behind the main door on the right hand side. When the main door is opened, the switch will also open preventing the dryer from operating. The main door switch is a safety device and should never be disabled. E. Lint Coop The lint coop is the bottom portion of the dryer behind the lint door. Inside the lint coop is the lint screen which prevents lint from entering the exhaust system. The lint screen should be kept clean at all times. On the
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G. Tumbler Bearing and Pulley Arrangement The tumbler bearing and the pulley arrangement is located (viewing from the rear of the dryer) approximately at the upper center of the dryer. The arrangement consists of a pulley, bearing box, and bearing which serve to adjust, drive, and support the tumbler. The bearing box has various nuts and bolts that are made to adjust the basket vertically and horizontally. H. Idler Bearing (Viewing from the rear of the dryer) The idler assembly is located appr
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J. Temperature Sensors The temperature sensor used in a transducer that converts heat into microamps that the computer board then uses to calculate the temperature. K. Sail Switch The sail switch consists of a round damper plate on a lever arm which acts like an actuator for a micro-switch. When the air blower comes on, it draws air through the burner. This creates a negative pressure inside the burner box, and this negative pressure pulls in the round damper which activates the sail switch.
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L. Motor Contactor (1Ø Motor) This motor contactor used on single phase dryers, is located in the rear of the machine, in the Electrical Panel Box. It's purpose is to transfer the higher voltage to the motor when the contactor coil voltage has been achieved. The contactor will have a filter ca- pacitor across the coil connections. This helps smooth out the 24 volt signal from the computer board. M. Non-Reversing Contactor (3Ø Motor) The non-reversing contactor is used on 3 phase non-reversing
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SECTION V Servicing ALL electrical/mechanical service or repairs should be made with the electrical power to the dryer disconnected (power off). WARNING: PERSONAL INJURY COULD RESULT The information provided in this section should not be misconstrued as a device for use by an untrained person making repairs. Service work should be performed by competent technicians in accordance with local, state, and federal codes. When contacting the factory for assistance, always have the dryer model and ser
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To Replace Computer 1. Disconnect power to the dryer. 2. Disconnect main power harness from rear of computer by squeezing locking tab and pulling connector straight back. 3. Disconnect the green ground wire from the computer. 4. Disconnect the keypad ribbon from the computer. 5. Remove the two (2) screws securing the computer to the control panel and remove computer from panel, by pulling upwards on the corners. 6. Install new computer by reversing this procedure. 7. Be sure to check or reset pr
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To Replace Coin Acceptor 1.Discontinue power to dryer. 2.Swing control panel open. 3.Unplug optic switch harness connector. 4.Remove one (1) screw holding coin acceptor in place. 5.Pull coin acceptor out gently. 6.Reverse procedure for installing new acceptor. To Remove Optic Switch 1.Unplug optic switch connector. 2.Remove screw and washer holding optic switch to the coin acceptor and pull optic switch away. 3.Reverse procedure for installing new optic switch. 16
