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ADC ML-122 Installation Manual

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WARNING: For your safety the
information in this manual must be
followed to minimize the risk of fire or
explosion or to prevent property damage,
personal injury or death.
Do not store or use gasoline or other flammable
vapor and liquids in the vicinity of this or any
other appliance.
WHAT DO YOU DO IF YOU SMELL GAS
* Do not try to light any appliance.
* Do not touch any electrical switch; do not use
any phone in your building.
* Clear the room, building or area of all
occupants.
* Immediately call your gas supplier from a
neighbor's phone. Follow the gas supplier's
instructions.
* If you cannot reach your gas supplier, call the
fire department.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
051599GS/abe
ML-122
Installation Manual
AVERTISSEMENT: Assurez-vous de bien
suivre les instructions données dans cette
notice pour réduire au minimum le risque
d'incendie ou d'explosion ou pour éviter tout
dommage matériel, toute blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ni
d'autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR
DE GAZ:
* Ne pas tenter d'allumer d'appareil.
* Ne touchez à aucun interrupteur. Ne pas
vous servir des téléphones se trouvant dans
le bâtiment où vous vous trouvez.
* Évacuez la pièce, le bâtiment ou la zone.
* Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
* Si vous ne pouvez rejoindre le fournisseur
de gaz, appelez le service des incendies.
L'installation et l'entretien doivent être assurés
par un installateur ou un service d'entretien
qualifié ou par le fournisseur de gaz.
For replacement parts, contact the reseller from which the dryer
was purchased or
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. 113071

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  • Page 1 For replacement parts, contact the reseller from which the dryer was purchased or 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 051599GS/abe ADC Part No. 113071...
  • Page 2 We have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the right to make changes from time to time, without notice or obligation, in prices, specifications, colors, and material, and to change or discontinue models.
  • Page 3 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.
  • Page 4 WARNING The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY OR FIRE COULD RESULT. WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer.

  • Page 5: Table Of Contents

    Table of Contents SECTION I IMPORTANT INFORMATION ................3 A. Receiving and Handling ......................... 3 B. Safety Precautions ........................4 SECTION II SPECIFICATIONS/COMPONENT IDENTIFICATION ........6 A. Specifications (Gas and Steam) ..................... 6 B. Component Identification ......................8 SECTION III INSTALLATION PROCEDURES .................
  • Page 6 SECTION VI ROUTINE MAINTENANCE .................. 39 A. Cleaning ............................. 39 B. Adjustments ..........................40 C. Lubrication ..........................40 SECTION VII REVERSING TIMER SPIN/DWELL ADJUSTMENTS ........41 SECTION VIII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ....................... 42...

  • Page 7: Section I

    5. Freight claims are the responsibility of the consignee, and ALL claims must be filed at the receiving end. ADC assumes no responsibility for freight claims or damages. 6. If you need assistance in handling the situation, please contact the ADC Traffic Manager at (508) 678-9000.

  • Page 8: Safety Precautions

    4. Installation and service must be performed by a qualified installer, service agency, or gas supplier. 5. Dryer(s) must be exhausted to the outdoors. 6. Although ADC produces a very versatile dryer, there are some articles that, due to fabric composition or cleaning method, should not be dried in it.
  • Page 9 WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a fire hazard. WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or similarly textured rubber materials. Drying in a heated basket (tumbler) may damage plastics or rubber and may be a fire hazard.

  • Page 10: Specifications/Component Identification

    Shaded areas are stated in metric equivalents IMPORTANT: Dryers must be provided with a clean, dry, regulated 80 PSI +/- 10 PSI (5.51 bars +/- 0.69 bars) air supply. NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.

  • Page 11: Specifications

    Specifications MLG-122HS (Gas) MLS-122 (Steam) NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.

  • Page 12: Component Identification

    B. COMPONENT IDENTIFICATION 1. Dryer Front View Illus. No. Description Microprocessor Control/Keyboard (Touch Pad) Panel Assembly (Controls) Control (Top Access) Door Assembly Main Door Assembly Lint Panel Assembly Lint Drawer Wire Diagram (Located Behind Control Door) Top Console (Module) Assembly...
  • Page 13 2. Dryer Rear View Illus. No. Description Electrical Service Connections Top Console Heating Unit Relay/Wiring Box Data Label and Installation Label Air Connection...

  • Page 14: Installation Procedures

    SECTION III INSTALLATION PROCEDURES 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 Propane [L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing) or Canadian Electrical Codes Parts 1 &...

  • Page 15: Unpacking/Setting Up

    10. The dryer must be installed with provisions for adequate combustion and make-up air supply. CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every 6 months, inspect the exhaust ducting and remove any lint build up. B.
  • Page 16 2. If more headroom is needed when moving dryer into position, the top console (module) may be removed. a. To Remove Top Console (Module) 1) Disconnect the ground wire (A) at the rear of dryer. 2) Remove the six (6) sets of nuts and washers (B) holding the console (module) to base. (Located within control boxes.) 3) Open control door and control panel then disconnect the following: a) On the right side box, disconnect the 4-pin plug as well as the 4-pin and 2-pin plug located on the...

  • Page 17: Dryer Enclosure Requirements

    C. DRYER ENCLOSURE REQUIREMENTS Even though a 12-inch (30.48 cm) clearance is acceptable, it is recommended that the rear of the dryer be positioned approximately 2 feet (0.61 meters) from the nearest obstruction (i.e., wall) for ease of installation, maintenance, and service. Bulkheads and partitions should be made from noncombustible materials. The clearance between the bulkhead header and the dryer must be a minimum of 4-inches (10.16 cm) and must not extend more than 4-inches (10.16 cm) to the rear of the dryer front.

  • Page 18: Fresh Air Supply Requirements

    D. FRESH AIR SUPPLY REQUIREMENTS When the dryer is operating, it draws in room air, heats it, passes this air through the basket (tumbler), and exhausts it out of the building. Therefore, the room air must be continually replenished from the outdoors. If the make-up air is inadequate, drying time and drying efficiency will be adversely affected.

  • Page 19: Exhaust Requirements

    E. EXHAUST REQUIREMENTS 1. General Exhaust Ductwork Information Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductwork will create excessive back pressure which results in slow drying, increased use of energy, overheating of the dryer, and shutdown of the burner by the airflow (sail) switches, burner hi-limits, or basket (tumbler) hi-heat thermostats.
  • Page 20 ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions, which will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the building.
  • Page 21 a. Ducting (Horizontal and Vertical) 1) For single dryer horizontal ducting the minimum duct size is 16-inches (40.64 cm) in diameter, the duct run should not have more than one (1) elbow (including outside protection), and must not exceed 40 feet (12.2 meters) in total length. With single dryer vertical ducting the minimum duct size is 18-inches (45.72 cm) in diameter, the duct run should not have more than three (3) elbows (including outside protection), and must not exceed 20 feet (6.1 meters) in total length IMPORTANT: When the ductwork approaches the maximum limits as noted in this manual, a...
  • Page 22 (1) elbow. The total duct run from the dryer to the common duct must not exceed 15 feet (4.57 meters) in length. IMPORTANT: The ML-122 is not provided with a back draft damper. When exhausted into a multiple (common) exhaust line, a back draft damper must be installed at each dryer duct.
  • Page 23 IMPORTANT: Exhaust back pressure measured by a manometer at each dryer exhaust duct area must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column (W.C.). The duct should be smooth inside with no projections from sheet metal screws or other obstructions, which will collect lint.

  • Page 24: Electrical Information

    F. ELECTRICAL INFORMATION 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.
  • Page 25 WARNING: 208 VAC AND 240 VAC ARE NOT THE SAME. Any damage done to dryer components due to improper voltage connections will automatically VOID THE WARRANTY. NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.
  • Page 26 3. Electrical Connections NOTE: A wire diagram is located in the front electrical control box for connection data. The only electrical input connections to the dryer are the 3-phase (3ø) power leads (L1, L2, and L3), GROUND, and in the case of 4 wire service, the neutral. Providing local codes permit, power connections to the dryer can be made by the use of flexible underwriters laboratory listed cord or pigtail (wire size must conform to rating of the dryer), or the dryer can be hard wired directly to the service breaker.

  • Page 27: Gas Information

    If this information does not agree with the type of gas available, DO NOT OPERATE THE DRYER. Contact the reseller who sold the dryer or contact the ADC factory. IMPORTANT: Any burner changes or conversions must be made by a qualified professional.
  • Page 28 2. Technical Data a. Gas Specifications TYPE OF GAS NATURAL LIQUID PROPANE Manifold Pressure* 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb In-Line Pressure 6.0 - 12.0 inches W.C. 14.92 - 29.9 mb 11.0 inches W.C. 27.4 mb Shaded areas are stated in metric equivalents Measured at gas valve pressure tap when the gas valve is on.
  • Page 29 3. Piping/Connections ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LATEST EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and must be done by a qualified professional.
  • Page 30 IMPORTANT: The dryer and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa). NOTE: The dryer must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure test of the gas supply system at test pressures equal to or less than 1/2 psig (3.5 kPa).

  • Page 31: Steam Information

    H. STEAM INFORMATION It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms with local and state regulations or codes. IMPORTANT: Failure to comply with the requirements stipulated in this manual can result in component failure, which will VOID THE WARRANTY.
  • Page 32 c. Flexible hoses or couplings must be used. The dryer vibrates slightly when it runs and this will cause the steam coil connections to crack if they are hard piped to the supply and return mains. d. Shutoff valves for each dryer should be installed in the supply line, return line, and drip trap return line. This will allow the dryer to be isolated from the supply main and the return main if the dryer needs maintenance work.
  • Page 33 a. Air Requirements COM P RESSED AIR P RESSURE AIR SUP P LY Normal 80 PSI 5.51 bars Minimum Supply 70 PSI 4.82 bars Maximum Supply 90 PSI 6.21 bars Shaded areas are stated in metric equivalents b. Air Connection Air connection to system --- 1/8”...

  • Page 34: Compressed Air

    I. COMPRESSED AIR The ML-122 is manufactured with a pneumatic air jet damper system, which requires an external supply of compressed air. The air connection is made at the rear of the top console.

  • Page 35: Preparation For Operation/Start-Up

    J. PREPARATION FOR OPERATION/START-UP The following items should be checked before attempting to operate the dryer: 1. Read ALL "CAUTION," "WARNING," and "DIRECTION" labels attached to the dryer. 2. Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label located on the left wall, behind the upper control door area.

  • Page 36: Preoperational Tests

    K. PREOPERATIONAL TESTS ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions. 1.
  • Page 37 b. Steam Models 1) Check to insure that the steam damper is functioning properly. a) The steam damper should not "slam" (open or closed) when it reaches the end of (piston) travel. Additionally, the steam damper should not bind and/or stop during travel. If either of these conditions occur, the flow control must be adjusted.

  • Page 38: Operating Instructions

    b. Dual Timer Check ... • Heating Timer • Cool Down Timer • Temperature Selection Switch L. OPERATING INSTRUCTIONS NOTE: Before attempting to start the dryer make sure that the main door is closed and the lint drawer is securely in place. 1.

  • Page 39: Shut Down Instructions

    2) Select drying temperature (“HI TEMP,” “LO TEMP,” or “PERM PRESS”). 3) Push "Push To Start" switch ... a) Dryer will now start. 4) To stop the dryer, open the main door. M. SHUT DOWN INSTRUCTIONS If the dryer is to be shut down (taken out of service) for a period of time, the following must be performed: 1.

  • Page 40: Service/Parts Information

    1. Replacement parts should be purchased from the reseller from whom the ADC equipment was purchased. If the reseller cannot be contacted or is unknown, contact the ADC Parts Department for a reseller in your area. Parts may also be purchased directly from the factory by calling the ADC Parts Department at (508) 678-9000 or you may FAX in your order at (508) 678-9447.

  • Page 41: Warranty Information

    A. RETURNING WARRANTY CARDS 1. Before any dryer leaves the ADC factory test area, a warranty card is placed on the back side of the main door glass. These warranty cards are intended to serve the customer where we record the individual installation date and warranty information to better serve you should you file a warranty claim.
  • Page 42 IMPORTANT: No replacements, credits, or refunds will be issued for merchandise damaged in transit. 5. ALL returns should be shipped to the ADC factory in such a manner that they are insured and a proof of delivery can be obtained by the sender.

  • Page 43: Routine Maintenance

    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 provide many years of efficient, trouble free, and most importantly safe operation.

  • Page 44: Adjustments

    90 DAYS Remove lint from around basket (tumbler), drive motors, and surrounding areas. Remove lint from the gas valve burner area with a dusting brush or vacuum cleaner attachment. NOTE: To prevent damage, avoid cleaning and/or touching the Hot Surface Ignitor. Remove lint accumulation from inside the control box and at rear area behind the control box.

  • Page 45: Reversing Timer Spin/Dwell Adjustments

    SECTION VII REVERSING TIMER SPIN/DWELL ADJUSTMENTS Timer models have an electronic reversing timer in the electrical service box, which is located in the upper left rear area of the dryer. Both the dwell (stop) time and the basket (tumbler) spin time are adjustable by mode selection switches located on the electronic timer (as noted in the illustration below).

  • Page 46: Procedure For Functional Check Of Replacement Components

    SECTION VIII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 1. Microprocessor Controller (Computer) Board a. Upon completing installation of the replacement microprocessor controller (computer) board, reestablish power to the dryer. b. Start the drying cycle by pressing any of the preset cycles in letters A-F. c.
  • Page 47 d. Verify that the motor(s), heat, and door indicator lights on the back side of the microprocessor controller (computer) board are lit. (Refer to the illustration below.) "FAN" (Blower) output light emitting diode (L.E.D.) indicator "FOR" (Forward) output L.E.D. indicator "Rev"...
  • Page 48 e. Open main door. The dryer must stop and ALL indicator dots of the microprocessor controller (computer) light emitting diode (L.E.D.) display must go out. (Refer to the bottom illustration on the previous page.) f. Try to restart the dryer with the main door open. g The microprocessor controller (computer) board's L.E.D.
  • Page 49 ADC 113071 1 - 05/25/99-50 2 * 07/14/99-50 3 - 09/01/99-25 4 * 11/19/99-35 5 * 12/06/99-20 6 * 12/22/99-30 7 - 12/30/99-25 8 * 03/29/00-50 9 - 06/08/00-100 10 - 01/29/01-100 11 * 10/16/01-100...

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