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American Dryer Corp. ML-75HS Installation Manual

American dryer corporation gas/electric/steam dryer 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.
051697SL/tf
ML-75HS
(Gas/Electric/Steam)
Installation Manual
For replacement parts, contact the distributor from which the dryer
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.
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
ADC Part No. 113001

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Summary of Contents for American Dryer Corp. ML-75HS

  • Page 1 Installation and service must be performed by a qualified installer, service agency or the gas supplier. 051697SL/tf ML-75HS (Gas/Electric/Steam) 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.
  • Page 2 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/operator's manual included with the dryer.

  • Page 3: For Your Safety

    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, ADJUST- ING, INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA (Occupational Safety and Health Administration) STANDARDS.
  • Page 4 The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY or FIRE COULD RESULT. DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN PLACE...EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED. PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation/operator's manual included with the dryer.
  • Page 5 Table of Contents SECTION I IMPORTANT INFORMATION ... 3 A. Receiving and Handling ... 3 B. Safety Precautions ... 3 SECTION II SPECIFICATIONS ... 6 A. Specifications ... 6 B. Component Identification ... 8 SECTION III INSTALLATION PROCEDURES ... 10 A.
  • Page 6 SECTION VI ROUTINE MAINTENANCE ... 44 A. Cleaning ... 44 B. Adjustments ... 45 SECTION VII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ... 46 SECTION VIII REVERSING TIMER SPIN/DWELL ADJUSTMENTS ... SECTION IX TECHNICAL INFORMATION ... Data Label ... 50...
  • Page 7 SECTION I...
  • Page 9 IMPORTANT: Coil failure due to improper PH level will VOID THE WARRANTY.
  • Page 10 BASKET DIAMETER BASKET DEPTH BASKET MOTOR DOOR OPENING (Diameter) BASKET VOLUME DRYERS PER 20’/40’ CONTAINER DRYERS PER 45’/48" TRUCK VOLTAGE AVAILABLE APPROX. WEIGHT (Uncrated) APPROX. WEIGHT (Crated) HEAT INPUT AIRFLOW INLET PIPE SIZE VOLTAGE AVAILABLE APPROX. WEIGHT (Uncrated) APPROX. WEIGHT (Crated) AIRFLOW VOLTAGE AVAILABLE APPROX.
  • Page 11 MLG-75HS MLE-75 MLS-75 NOTE: ADC RESERVES THE RIGHT TO MAKE CHANGES IN SPECIFICATIONS AT ANY TIME, WITHOUT NOTICE or OBLIGATION.
  • Page 12 Illus. No. Description Controls Control (top access) Door Assembly Main Door Assembly Lint Compartment Area (lint screen located behind door) Data Label and Installation Label (located behind control [service] door)
  • Page 13 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 &...

  • Page 14: Section Iii

    SECTION III...
  • Page 17 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. Ignition problems and sail switch "fluttering"...
  • Page 24 MLS-75 (Steam) LECTRICAL IMPORTANT: 208 VAC and 230/240 VAC ARE NOT THE SAME. When ordering, specify exact voltage. A. Fuse ratings are dual-element, time-delay, current limiting, class RK1 or RK5 ONLY. NOTE: B. Circuit breakers are thermal magnetic (industrial) type ONLY. For others, calculate/verify correct breaker size according to appliance amp draw rating and type of breaker used.
  • Page 25 LECTRICAL IMPORTANT: 208 VAC and 230/240 VAC ARE NOT THE SAME. When ordering, specify exact voltage. NOTE: A. Fuse ratings are dual-element, time-delay, current limiting, class RK1 or RK5 ONLY. B. Circuit breakers are thermal magnetic (industrial) type ONLY. For others, calculate/verify correct breaker size according to appliance amp draw rating and type of breaker used.
  • Page 27 Single-Phase (1Ø) Electrical Connections Leads Black White Green Positive Neutral Ground...
  • Page 29 For gas and steam dryers manufactured for operation at three phase (3Ø), the electrical connections are made at the power distribution block located in the service box at the rear, upper left corner of the dryer. The ground connection is made to the copper lug also provided in this box.
  • Page 30 IMPORTANT: A strain relief must be used where the input wiring enters the oven assembly.
  • Page 32 Manifold Pressure Inline Pressure BTU Per Model Hour Qty. Number Rating MLG-75 200,000 Type of Gas Natural Liquid Propane 3.5 inches W.C. 10.5 inches W.C. 6.0 - 12.0 inches W.C. 10.5 inches W.C. Type of Gas Natural Liquid Propane Part D.M.S.* Qty.
  • Page 35 Operating Steam Pressure Maximum 125 psig Minimum 100 psig* Heat Input (Normal Load) 7 Bhp Consumption (Approximate) 239 lbs/hr...
  • Page 36 g. Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly causing steam coil damage. ALL horizontal runs of steam supply piping should be pitched 1/4-inch for every one (1) foot back towards the steam supply header causing the condensate in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.
  • Page 37 3. STEAM DAMPER AIR SYSTEM CONNECTIONS The MLS-75 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 in front of the electric service relay box. a.
  • Page 45 SECTION IV...
  • Page 46 SECTION V...
  • Page 48 SECTION VI...

  • Page 50: Section Vii

    SECTION VII...

  • Page 53: Section Viii

    SECTION VIII Timing Legend Spin Time Switch Position Number Time in Seconds* Dwell (Stop) Time Switch Position Number Time in Seconds* * Values shown are +/- 1 second.
  • Page 54 SECTION IX...