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ADC ML-82 II Installation Manual

Gas - hsi/steam models
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ML-82 II
(Gas - HSI/Steam Models)
Installation Manual

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Summary of Contents for ADC ML-82 II

  • Page 1 ML-82 II (Gas - HSI/Steam Models) Installation Manual...
  • Page 2 ML-82 II (HSI)
  • Page 4 must never be MUST NEVER BE must not be...
  • Page 5 Table of Contents...

  • Page 7: Receiving And Handling

    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. IMPORTANT: The dryer must be transported and handled in an upright position at ALL times.

  • 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 rubberlike materials. Drying in a heated basket (tumbler) may damage plastics or rubber and also may be a fire hazard.

  • Page 10: Specifications/Component Identification

    IMPORTANT: Steam dryers must be provided with a clean, dry, and regulated 80 PSI +/- 10 PSI (5.51 bars +/- 0.68 bars) air supply. NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.

  • Page 11: Specifications

    Specifications ML-82 II (Gas and Steam ONLY) 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 Controls Control (top access) Door Assembly Main Door Assembly Lint Compartment Area (lint screen located behind door) Lint Drawer Data Label and Installation Label (located on the left side panel area behind the top access [control] door)
  • Page 13 2. Dryer Rear View Illus. No. Description Heating Unit 1/8" Compressed Air Supply Inlet (behind electric service relay box for steam units Only) Electric Service Relay Box Tumbler Bearing Mount Assembly Idler Bearing Mount Assembly Blower Motor Assembly Leveling Leg (rear) Basket (drive) Motor Assembly (reversing models Only) Dryer Exhaust Electric service connections for gas models and steam models are made in this box.

  • 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 B. UNPACKING/SETTING UP Remove protective shipping material (i.e., plastic wrap and optional shipping box) from dryer. IMPORTANT: Dryer must be transported and handled in an upright position at ALL times. The dryer can be moved to its final location with or without the skid attached. To unskid the dryer, locate and remove the four (4) bolts securing the base of the dryer to the wooden skid.

  • Page 16: Dryer Enclosure Requirements

    C. DRYER ENCLOSURE REQUIREMENTS Bulkheads and partitions should be made of noncombustible materials and must be located a minimum of 12-inches (30.48 cm), 18-inches (45.72 cm) or more is recommended for ease of installation, maintenance, and service, above the dryer outer top, except along the front of the dryer which may be partially closed in if desired. 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 front.

  • Page 17: Fresh Air Supply

    IMPORTANT: When fire sprinkler systems are located above the dryers, a minimum of 18-inches (45.72 cm) above the dryer console (module) is required. Dryers may be positioned sidewall to sidewall. However, a 1/16-inch (1.5875 mm) minimum allowance is required between dryers (or wall) for ease of installation and maintenance. Allowances must be made for the opening and closing of the control door and the lint door.

  • Page 18: Exhaust Requirements

    It is not necessary to have separate make-up air openings for each dryer. Common make-up air openings are acceptable. However, they must be set up in such a manner that the make-up air is distributed equally to ALL the dryers. EXAMPLE: For a bank of four (4) dryers, two (2) unrestricted openings measuring 2-1/2 feet by 2 feet (0.76 meters by 0.61 meters), 10 square feet (0.93 square meters) is acceptable.
  • Page 19 IMPORTANT: Exhaust back pressure measured by a manometer in the exhaust duct must not exceed 0.3 inches (0.74 mb) of water column (W.C.). NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the opening must be 2-inches (5.08 cm) larger than the duct (ALL the way around). The duct must be centered within this opening.
  • Page 20 IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust duct area must not exceed 0.3 inches (0.74 mb) of water column (W.C.). It is suggested that the ductwork from each dryer not exceed 15 feet (4.57 meters) with no more than two (2) elbows (excluding dryer connections and outside exhaust outlets).
  • Page 21 a. Outside Ductwork Protection 1) To protect the outside end of the horizontal ductwork from the weather, a 90° elbow bent downward should be installed where the exhaust exits the building. If the ductwork travels vertically up through the roof, it should be protected from the weather by using a 180º turn to point the opening downward.
  • Page 22 NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible materials, the opening must be 2-inches (5.08 cm) larger than the duct (ALL the way around). The duct must be centered within this opening. a. Outside Ductwork Protection 1) To protect the outside end of the horizontal ductwork from the weather, a 90º...

  • Page 23: 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 with local and state regulations or codes. In the absence of such codes, ALL electrical connections, material, and workmanship must conform to the applicable requirements of the National Electrical Code ANSI/NFPA NO.
  • Page 24 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 25 3. Electrical Connections NOTE: A wire diagram is located in the front electrical control box for connection data. a. Gas Models and Steam Models Only NOTE: A CIRCUIT SERVICING EACH DRYER MUST BE PROVIDED. For gas and steam dryers manufactured for operation at 3-phase (3ø), the electrical connections are made at the power distribution block located in the service box at the rear, upper left hand corner of the dryer.

  • Page 26: Gas Information

    (control) door. If this information does not agree with the type of gas available, DO NOT operate 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 27 2. Technical Gas Data a. Gas Specifications YP E OF Natural Liquid Propane (L.P.) Manifold Pressure* 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb 14.92 - 29.9 mb 26.1 mb Inline Pressure 6.0 - 12.0 inches W.C. 10.5 inches W.C. Shaded areas are stated in metric equivalents * Measured at gas valve pressure tap when the gas valve is on.
  • Page 28 3. Piping and 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: Steam Information

    VOID THE WARRANTY. NOTE: The ML-82 II is manufactured with a pneumatic (piston) damper system which requires an external supply of clean, dry, and regulated air (80 PSI +/- 10 PSI [5.51 bars +/- 0.68 bars]).
  • Page 31 b. The steam supply piping to the dryer must include a 12-inch (30.48 cm) riser along with a drip trap and check valve. This will prevent any condensate from entering the steam coil. 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.
  • Page 32 3. Steam Damper Air System Connections The MLS-82 II is manufactured with a pneumatic (piston) damper system which requires an external supply of compressed air. The air connection is made to the steam damper solenoid valve which is located at the rear inner top area of the dryer just above the electric service relay box.
  • Page 33 5. Steam Damper Air Piston (Flow Control) Operation Adjustment Although the damper operation was tested and adjusted prior to shipping at 80 PSI (5.51 bars), steam damper operation must be checked before the dryer is put into operation. Refer to page 31 for instructions to check steam damper operation.

  • Page 34: Preparation For Operation/Start-Up

    I. 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 affixed to the left side panel area behind the top access (control) door.

  • Page 35: Preoperational Tests

    J. 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 36 5. Make a complete operational check of ALL safety related circuits: a. Door switch(es) b. Hi-Limit thermostats c. Sail switch (for gas models only) NOTE: To check for proper sail switch operation (for gas models only), open the main door and while holding main door switch plunger in, start dryer.

  • Page 37: Preoperational Instructions

    REVERSING MODELS ONLY - Basket (tumbler) dryer should never be operated with less than a 30 lb. (13.7 kg) load (dry weight). The size of the load will affect the coast-down and dwell (stop) times. The basket (tumbler) must come to a complete stop before starting in opposite direction.

  • Page 38: 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 39: Warranty Information

    A. RETURNING WARRANTY CARD(S) 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 40 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 41: 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 42 STEAM DRYERS Clean the steam coil fins. Suggest using compressed air and a vacuum cleaner with brush attachment. NOTE: When cleaning steam coil fins, be careful not to bend the fins. If the fins are bent, straighten by using a fin comb, which is available from any local air conditioning supply house. 90 DAYS 1.

  • Page 43: Lint Drawer Removal

    DO NOT have a grease fitting. Provisions are made in the bearing housing for the addition of a grease fitting which can be obtained elsewhere, or from ADC by ordering kit Part No. 882159 (basket [tumbler] ONLY), which includes two (2) fittings.

  • Page 44: Procedure For Functional Check Of Replacement Components

    SECTION VII 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 45 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.) 1) “FAN” (Blower) light emitting diode (L.E.D.) indicator 2) “FOR” (Forward) output L.E.D. indicator (for optional Reversing Models Only) 3) “Rev”...
  • Page 46 e. Open main door. The dryer must stop and ALL output indicator lights on the back side of the microprocessor controller (computer) board must go out. (Refer to the illustration on previous page.) f. Try to restart the dryer with the main door open. g.

  • Page 47: Data Label Location/Information

    A. DATA LABEL Contact American Dryer Corporation When contacting ADC, certain information is required to insure proper service/parts information from ADC. left side panel area behind the top access (control) door This information is on the data label located on the...
  • Page 48 THE DATA LABEL 1. MODEL NUMBER The model number is an ADC number which describes the size of the dryer and the type of heat (gas, electric, or steam). 2. SERIAL NUMBER The serial number allows ADC to gather information on your particular dryer.

  • Page 49: Burner And Basket (Tumbler)/Lint Chamber Manual Reset Hi-Limit Instructions

    WARNING: Discontinue power to dryer before attempting to reset hi-limit. IMPORTANT This dryer is equipped with a burner hi-limit and tumbler/lint chamber hi-limit thermostat which must be reset manually. WARNING: Discontinue power to dryer before attempting to reset hi-limit. ADC P/N: 114093...
  • Page 50 The basket (tumbler) manual reset hi-limit is locked in the chamber area. WARNING: Discontinue power to dryer before attempting to reset hi-limit. IMPORTANT This dryer is equipped with a lint chamber hi-limit thermostat which must be reset manually. WARNING: Discontinue power to dryer before attempting to reset hi-limit. ADC P/N: 114501...
  • Page 51 ADC 113321 1 - 03/16/01-25...

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