American Dryer Corp. AD-81 II manual

010301DX/rar ADC Part No. 113311 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 WARNING: For your safety the information in this manual must be followed to[...]

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 PRECA[...]

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. WARNING CHILDREN SHOULD NOT BE ALLOWED TO[...]

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. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer. WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTE[...]

Table of Contents SECTION I IMPORTANT INFORMATION .......................................................................... 3 A. Receiving and Handling ............................................................................................................... 3 B. Safety Precautions .............................................................[...]

SECTION VI ROUTINE MAINTENANCE ............................................................................ 38 A. Cleaning ................................................................................................................................... 38 B. Adjustments .............................................................................[...]

3 SECTION I IMPOR T ANT INFORMA TION A. RECEIVING AND HANDLING The dryer is shipped in a protective stretch wrap cover with protective cardboard corners and top cover (or optional box) as a means of preventing damage in transit. Upon delivery, the dryer and/or protective packaging, and wooden skid should be visually inspected for shipping damage. I[...]

4 B. SAFETY PRECAUTIONS 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 loss of life. WARNING: The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY OR FIRE COULD RESUL[...]

5 7. A program should be established for the inspection and cleaning of lint in the burner area, exhaust ductwork, and area around the back of the dryer. The frequency of inspection and cleaning can best be determined from experience at each location. WARNING: The collection of lint in the burner area and exhaust ductwork can create a potential fir[...]

6 SECTION II SPECIFICA TIONS/COMPONENT IDENTIFICA TION A. SPECIFICA TIONS * R efer to Electrical Service Specifications chart on page 21 . IMPORTANT: Steam dryers must be provided with a clean, dry, and regulated 80 PSI +/- 10 PSI (5.51 bars +/- 0.68 bars) air supply. Air volume requirement is 0.75 cfh (cubic feet per hour) - 0.02 cmh (cubic meters[...]

7 Specifications ADS-81 II ADG-81 II NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.[...]

8 B. COMPONENT IDENTIFICA TION 1. Dryer Front View Illus. No. Description 1 Microprocessor Control / Keyboard (touch pad) Panel Assembly (controls) 2 Control (top access) Door Assembly 3 Main Door Assembly 4 Lint Compartment Area (located behind front panel) 5 Lint Drawer 6 Data Label and Installation Label (data label that is affixed to the left s[...]

9 2. Dryer Rear View NOTE : 1/8-inch compressed air supply inlet (for steam models only) is located behind the electric service relay box...Not illustrated. Illus. No. Description 1 Heating Unit 2 1/8” Compressed Air Supply Inlet (behind electric service relay box for steam units only) 3* Electric Service Relay Box 4 Basket (tumbler) Bearing Moun[...]

10 SECTION III INST ALLA TION 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 Electri[...]

11 B. UNPACKING/SETTING UP 1. Inside the basket (tumbler) of this dryer is an exhaust transition piece that must be installed on the outlet of the exhaust before any further venting is connected. To do this, follow the procedures listed below: a. Remove the exhaust transition piece from the basket (tumbler) and place it on the exhaust outlet. b. Us[...]

12 C. DR YER 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[...]

13 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” (1.5875 mm) minimum allowance is required between dryers (or wall) for ease of installation and maintenance. Allowances must be made[...]

14 It is not necessary to have a separate make-up air opening 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) openings measuring 2 feet by 2-1/2 feet (0.61 meters by 0.76 meters) (1[...]

15 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. Inspection doors should be[...]

16 2. Single Dryer Venting Where possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust duct should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible. It is suggested that the use of 90° turns in the ducting be avoided ; use 30° and/or 45° a[...]

17 IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent. Maximum proportional ductwork runs cannot exceed 15 feet (4.57 meters) more than the original limitations of 15 feet (4.57 meters) with two (2) elbows. When the ductwork approaches the maximum limits as noted in this manual, a profes[...]

18 IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent. Maximum proportional ductwork runs, cannot exceed 15 feet (4.57 meters) more than the original limitations of 15 feet (4.57 meters) with two (2) elbows. When the ductwork approaches the maximum limits as noted in this manual, a profe[...]

19[...]

20 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, a[...]

21 2. Electrical Service Specifications IMPORTANT: The dryer must be connected to the electric supply shown on the data label that is affixed to the left side panel area behind the top control (access) door. In the case of 208 VAC or 230/240 VAC, the supply voltage must match the electric service specifications of the data label exactly . IMPORTANT[...]

22 3. Electrical Connections NOTE: A wire diagram is located in the front electrical control box for connection data. a. 3- Phase (3ø) Wiring Connections The only electrical input connections to the dryer are the 3-phase (3ø) power leads (L1, L2, L3, and sometimes Neutral) and ground. Single-phase (1ø) power for the control circuit is done inter[...]

23 G . GAS INFORMA TION 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 to local and state regulations or codes. In the absence of such codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requireme[...]

24 2. Technical Gas Data a. Gas Specifications b. Gas Connections Inlet connection --- 1-inch N.P.T. Inlet supply size --- 1-inch N.P.T. (minimum) Btu/hr input -------- 270,000 (68,040 kcal/hr) 1) Natural Gas Regulation is controlled by the dryer’s gas valve’s internal regulator. Incoming supply pressure must be consistent between a minimum of [...]

25 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[...]

26 NOTE: The dryer must be isolated from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).[...]

27 H. STEAM INFORMA TION It is your responsibility to have ALL steam plumbing connections made by a qualified professional to assure that the installation is adequate and conforms to 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[...]

28 b. The steam supply piping to the dryer must include a 12-inch (30.48 cm) rise 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 [...]

29 3. Steam Damper Air System Connections The ADS-81 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. a. Air Requirements b[...]

30 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 32 and page 33 for instructions to check steam damper operation. If damper air adjustment is nec[...]

31 I. PREP ARA TION FOR OPERA TION/ST AR T -UP The following items should be checked before attempting to operate the dryer: 1. Read and follow 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 [...]

32 J. PREOPERA TIONAL 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. Turn on electric power to the dryer. a. Open AL[...]

33 5. Make a complete operational check of ALL safety related circuits: a. Door switch(es) b. Hi-limit thermostats c. Lint drawer switch d. 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. Dryer should start but hea[...]

34 10. Check to insure that ALL setscrews (i.e., basket [tumbler] drive, idler, etc.) are tight. K. PREOPERA TIONAL INSTRUCTIONS 1. To start the dryer: a. Microprocessor controller (computer) dryers 1) The light emitting diode (L.E.D.) display will read “FILL.” 2) Press the “E” on the keyboard (touch pad). 3) The dryer will start and the L.[...]

35 SECTION IV SER VICE/P AR TS INFORMA TION A. SER VICE 1. Service must be performed by a qualified trained technician, service agency, or gas supplier. If service is required, contact the reseller from whom the ADC equipment was purchased. If the reseller cannot be contacted or is unknown, contact the ADC Service Department for a reseller in your [...]

36 SECTION V WARRANTY INFORMA TION A. RETURNING W ARRANTY 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[...]

37 2. Each part must be tagged with the following information: a. Model number and serial number of the dryer from which part was removed. b. Nature of failure (be specific). c. Date of dryer installation. d. Date of part failure. e. Specify whether the part(s) being returned is for a replacement, a credit, or a refund. NOTE: If a part is marked fo[...]

38 SECTION VI ROUTINE MAINTENANCE A. CLEANING A program 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[...]

39 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. Remove lint from around basket (tu[...]

40 C. LUBRICA TION The motor bearings and under normal/most conditions the basket (tumbler) and idler bearings are permanently lubricated. It is physically possible to re-lubricate the basket (tumbler) and idler bearings if you choose to do so even though this practice is not necessary . Use Shell Alvania #2 or its equivalent . The basket (tumbler)[...]

41 SECTION VII TROUBLESHOOTING 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. The infor[...]

42 2. Failed arc suppressor (A.S.) board. 3. Failed microprocessor controller (computer). D. Drive motor operates okay for a few minutes, and then stops and will not restart... 1. Motor is overheating and tripping out on internal overload protector... a. Motor air vents clogged with lint. b. Low voltage to the motor. c. Failed motor. d. Basket (tum[...]

43 1. Fault in main door switch circuit... a. Failed main door switch. b. Main door switch is out of adjustment. c. Loose connection in the door switch circuit. 2. Fault in lint drawer switch circuit... a. Lint drawer switch is out of proper adjustment. b. Loose connection in the lint drawer switch circuit. I. Microprocessor controller (computer) l[...]

44 2. Failed microprocessor controller (computer). L. Microprocessor controller (computer) will only accept certain keyboard (touch pad) entries... 1. Failed keyboard (touch pad) label assembly. 2. Failed microprocessor controller (computer). M. Microprocessor controller (computer) locks up and light emitting diode (L.E.D.) display reads erroneous [...]

45 P. No heat...ignitor sparks, burner goes on and off right away...GAS MODELS ONLY... 1. Direct Spark Ignition (DSI) ignitor/flame-probe is out of adjustment...reposition closer to the flame area. 2. Sail switch is fluttering... a. Lint drawer/screen is dirty. b. Restriction in the exhaust ductwork. 3. Insufficient make-up air. 4. Failed DSI ignit[...]

46 6. Lint drawer/screen are not being cleaned on a regular basis or often enough. 7. Extractors (washers) are not performing properly. 8. Sail switch is fluttering...restriction in exhaust ductwork (for GAS MODELS ONLY). 9. Failed microprocessor controller (computer)...temperature calibration is inaccurate. 10. Failed microprocessor temperature se[...]

47 b. Failed impellor (fan/blower). 3. Loose basket (tumbler) tie rod. 4. Basket (tumbler) is out of adjustment or adjustment bolts (hardware) are loose. 5. Failed basket (tumbler) support. 6. Loose motor mount. 7. Failed idler and/or basket (tumbler) bearings. 8. V-belt(s) either too tight or too loose.[...]

48 When contacting American Dryer Corporation certain information is required to insure proper service/parts information from ADC . This information is on the data label located on the left side panel area behind top control (access) door. When contacting ADC please have the model number and serial number available. SECTION VIII DA T A LABEL INFORM[...]

49 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. 3. MANUFACTURING CODE NUMBER The manufacturing code number is a number issued by ADC, which describes[...]

50 SECTION IX 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. c. Verify that the motor(s) and the heat indicator dots, in the microprocessor [...]

51 e. Open main door. The dryer must stop and ALL indicator lights on the back side of the microprocessor controller (computer) board must go out. f. Try to restart the dryer with the main door open. g. The microprocessor controller (computer) board’s light emitting diode (L.E.D.) display must read “DOOR.” h. Close the main door and restart t[...]

52 3. For Direct Spark Ignition (DSI) System Models Manufactured With ADC Module Part No. 882627 a. Upon completing installation of the replacement DSI module, reestablish power to the dryer. b. Start the drying cycle. c. The ignition DSI module’s light emitting diode (L.E.D.) indicator will light “red” for up to approximately 1.5 seconds (pr[...]

53 SECTION X BURNER AND BASKET (TUMBLER)/LINT CHAMBER MANUAL RESET HI-LIMIT INSTRUCTIONS I M P O R T A N T MANUAL RESET HI-LIMIT INSTRUCTIONS FOR DUAL TIMER OR PHASE 5 WITHOUT HEAT FAULT This dryer was manufactured with a burner manual reset hi-limit thermostat. If the burner manual reset hi-limit thermostat is open prior to the start of the drying[...]

54 I M P O R T A N T MANUAL RESET HI-LIMIT INSTRUCTIONS FOR DUAL TIMER OR PHASE 5 WITHOUT HEAT FAULT (ELECTRIC OR STEAM ) This dryer was manufactured with a manual reset basket (tumbler)/lint chamber hi-limit thermostat. If the manual reset thermostat is open prior to the start of the drying cycle, or during the cycle, the dryer will not recognize [...]

ADC 113311 1 - 02/06/01-35 2 * 09/19/01-25[...]