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AD-540
Mechanical/Electrical
Service Procedure
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
090603SRS/tcosta ADC Part No. 450246
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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 qualified technicians should service this equipment. OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with the dryer. The following “FOR YOUR SAFETY” caution must be po
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IMPORTANT YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPLY AND THE GAS 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. FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS 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 CLEA
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WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER OR SCREEN IN PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and specified in the installation manual included with the dryer. The wiring diagram for the dryer is located behind the left front control panel.
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Table of Contents SECTION I IMPORTANT INFORMATION ............................................................................... 3 A. Safety Precautions ...................................................................................................................... 3 SECTION II ROUTINE MAINTENANCE .................................................................................... 4 A. Cleaning ...............................................................................................
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SECTION VI BCD-1 TYPE MODULE..........................................................................................29 A. Introduction .............................................................................................................................. 29 B. General System Information ...................................................................................................... 29 C. G-760 Direct Spark Ignition (DSI) Flowchart ..................................................
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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 and/or 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(s) must be exhausted to the outdoors. 4. Although ADC produces a very versatile dryer, there are some articles that due to
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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 ductwork 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 6 MONTHS Drive belts should be examined. Cracked or seriously frayed belts should be replaced. Tighten loose drive belts when necessary, and check belt alignment. Complete operational check of control and valves. Complete operational check of ALL safety devices (door switches, sail switch and burner high limits an
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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, the installation must conform to applicable American National Standards: ANSI Z223.1- LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical Code) or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid P
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B. ELECTRICAL AND GAS REQUIREMENTS 1. Electrical 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 to local and state regulations or codes. In the absence of such codes, ALL electrical connections, materials, and workmanship must conform to the applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION or in Canada, the C
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The dryer must be connected to the type of gas (natural or liquid propane [L.P.]) indicated on the dryer data label. If this information does not agree with the type of gas available, contact the reseller who sold the dryer or contact the ADC factory. The gas input ratings shown on the dryer data label are for elevations up to 2,000 feet (609.6 meters), unless elevation requirements of over 2,000 feet (609.6 meters) were specified at the time the dryer order was placed with the factory. The ad
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SECTION IV DESCRIPTION OF PARTS A. CONTROL PANEL The coin panel assembly consists of the coin operator, a display board, and the keyboard (touch pad) label. The coin acceptor is used to acknowledge that the proper coin has been put through the acceptor. The display board will just display the time and temperature in a readable number of letter characters. The keyboard (touch pad) label is used to input Hi, Low, or Perm Press selection for the dryer to start. B. CONTROL AND RELAY PANELS The c
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D. DOOR SWITCH (HINGE BLOCK) 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. MICROPROCESSOR ASSEMBLY The microprocessor board is the latest Phase 5 controls. It monitors the dryer functions ALL the time. Indicator light emitting diode (L.E.D.) is mounted on the board to help with servicing of the d
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H. IDLER ARM AND IMPELLOR MOUNT ASSEMBLY The idler assembly is located in the back of the dryer, which is attached to the drive motor assembly. The main purpose of the idler assembly is to reduce the speed of the motor, in turn increasing the torque of the basket (tumbler) pulley. I. DRIVE MOTOR AND IDLER PULLEY ARRANGEMENT The dryer has a different kind of drive system. There is one (1) motor pulley, one (1) drive belt and an idler arm assembly by the basket (tumbler). The drive motor driv
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K. GAS BURNER The gas burner assembly consists of two (2) burner tube orifices (the orifice has a hole in it to allow gas to flow through). The hole size varies with different elevation Btus, gas valve (which can be up for natural or liquid propane [L.P.]), and a flame-probe assembly. L. SAIL SWITCH The sail switch consists of a round damper plate on a lever arm, which acts like an actuator for a microswitch. When the air blower comes on, it draws air through the burner. This creates a nega
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N. LINT DRAWER SWITCH The lint drawer switch is located under the basket (tumbler) on the right side. It is another added safety device that stops the operation of the dryer, when the lint drawer is opened. This device and the door switch are the two (2) safety switches designed to halt the basket (tumbler). O. LINT DRAWER The lint drawer is located under the baskets (tumblers) of each pocket. It is a fairly large drawer that is designed to be right in the main path of the airflow, to catch
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Q. REAR BASKET (TUMBLER) DRIVE WHEELS There is a left and right basket (tumbler) drive wheel bracket assembly. This allows the basket (tumbler) to spin freely without bearings or basket (tumbler) support shaft. R. ROTATIONAL SENSOR ASSEMBLY The Rotational Sensor Assembly is located in the rear of the dryer. It consists of a magnet and a rotational switch, which is mounted to the sail switch/rotational sensor bracket. The magnetic rotational sensor switch senses the rotation of the basket (tu
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SECTION V SERVICE A. INTRODUCTION ALL electrical or 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
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5. Disconnect the keyboard (touch pad) connector from the computer board keyboard (touch pad) harness (simply pull straight out). 6. Disconnect the 9-pin main computer harness from the computer (squeeze the one [1] tab on the connector and pull straight back). 7. Disconnect the green ground wire from the computer board. 8. Remove the two (2) Phillips head screws that secure the computer to the panel. Remove the board from the panel by pulling at the corners of the board. 9. Replace in the rever
