AD-81 II (Gas/Steam Models) Installation Manual 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. AVERTISSEMENT: Assurez-vous de bien suivre les instructions données dans cette notice pour réduire au minimumle risque d’incendie ou d’explosion pour ou éviter tout dommage matériel, toute blessure ou la mort.
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.
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. “Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper operation.
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.
Table of Contents SECTION I IMPORTANT INFORMATION .......................................................................... 3 A. Receiving and Handling ............................................................................................................... 3 B. Safety Precautions ...................................................................................................................... 4 SECTION II SPECIFICATIONS/COMPONENT IDENTIFICATION .................................. 6 A.
SECTION VI ROUTINE MAINTENANCE ............................................................................ 38 A. B. C. D. Cleaning ................................................................................................................................... 38 Adjustments ............................................................................................................................. 39 Lubrication ...........................................................................................
SECTION I IMPORTANT INFORMATION 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. If any damage whatsoever is noticed, inspect further before delivering carrier leaves. Dryers damaged in shipment: 1.
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 RESULT. 1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. 2.
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 fire hazard. 8. For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the National Electrical Code ANSI/NFPA NO.
SECTION II SPECIFICATIONS/COMPONENT IDENTIFICATION A. SPECIFICATIONS BASKET (TUMBLER) DIAMETER 37” 94 cm BASKET (TUMBLER) DEPTH 36” 91.5 cm BASKET (TUMBLER) MOTOR 1/2 HP 0.373 kw 3 HP 2.238 kw DOOR OPENING (DIAMETER) 21-1/2” 54.61 cm BASKET (TUMBLER) VOLUME 22.4 cu. ft. 0.634 cu. m. BLOWER MOTOR DRYERS PER 20'/40' CONTAINER 10/20 DRYERS PER 48'/53' TRUCK 24/26 Gas VOLTAGE AVAILABLE* 208-460v 3ø 50/60 Hz APPROX. WEIGHT (UNCRATED) 756 lbs 342.9 kg APPROX.
Specifications ADS-81 II ADG-81 II NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.
B. COMPONENT IDENTIFICATION 1. Dryer Front View Illus. No. 1 2 3 4 5 6 Description Microprocessor Control / Keyboard (touch pad) Panel Assembly (controls) Control (top access) Door Assembly Main Door Assembly Lint Compartment Area (located behind front panel) Lint Drawer Data Label and Installation Label (data label that is affixed to the left side panel area behind the top control [access] door).
2. Dryer Rear View Illus. No. 1 2 3* 4 5 6 7 8 9 Description Heating Unit 1/8” Compressed Air Supply Inlet (behind electric service relay box for steam units only) Electric Service Relay Box Basket (tumbler) Bearing Mount Assembly Idler Bearing Mount Assembly Blower Motor Assembly Leveling Leg (rear) Basket (tumbler) Drive Motor Assembly (reversing models only) Dryer Exhaust * Electric service connections for gas and steam models are made in this box.
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 Z223.1LATEST 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.
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. WARNING An exhaust duct transition piece is shipped inside of the dryer’s tumbler and MUST be installed on the dryer’s exhaust duct, with the hardware provided, BEFORE location venting is connected to the dryer.
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.
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 for the opening and closing of the control door and the lint door. D.
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) (10 square feet [0.93 square meters]) is acceptable.
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 installed at strategic points in the exhaust ductwork for periodic inspection and cleaning of lint from the ductwork.
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° angles instead. The shape of the exhaust ductwork is not critical so long as the minimum cross section area is provided.
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 professional heating, venting, and air conditioning (HVAC) firm should be consulted for proper venting information.
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 professional heating, venting, and air conditioning (HVAC) firm should be consulted for proper venting information.
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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.
2. Electrical Service Specifications ADG-81 (Gas) ADS-81 (Steam) ELECTRIC SERVICE SPECIFICATIONS (PER DRYER) IMPORTANT: 208 VAC AND 230/240 VAC ARE NOT THE SAME. When ordering, specify exact voltage. NOTES: A. When fuses are used they must be dual element, time delay, current limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse value, by applying either local and/or National Electrical Codes to listed appliance amp draw data. B.
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 internally to the dryer. No single-phase (1ø) input connection is required on a 3-phase (3ø) dryer.
G. GAS 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 to local and state regulations or codes. In the absence of such codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requirements of the National Fuel Gas Code ANSI Z223.1-LATEST EDITION, or in Canada, the Canadian Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.
2. Technical Gas Data a. Gas Specifications TYPE OF GAS NATURAL Manifold Pressure* In-Line Pressure LIQUID PROPANE 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb 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 b. Gas Connections Inlet connection --- 1-inch N.P.T. Inlet supply size --- 1-inch N.P.T.
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.
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).
H. STEAM INFORMATION 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 WARRANTY.
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 to the supply and return mains. d. Shutoff valves for each dryer should be installed in the supply, return, and drip trap return lines.
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 Compressed Air Supply Air Pressure Normal 80 PSI 5.51 bars Minimum Supply 70 PSI 4.82 bars Maximum Supply 90 PSI 6.
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 necessary, locate flow control valve and make necessary adjustments as noted below.
I. PREPARATION FOR OPERATION/START-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 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 exactly. 3.
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. Turn on electric power to the dryer. a. Open ALL shutoff valves (Gas Models Only). 2. Refer to the Operating Instructions for starting your particular model dryer. 3. Gas Dryers a.
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 heat circuit should not be activated (on). If heat (burner) does activate, shut dryer off and make necessary adjustments. 6.
10. Check to insure that ALL setscrews (i.e., basket [tumbler] drive, idler, etc.) are tight. K. PREOPERATIONAL 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.E.D. display will now show the cycle in progress and cycle status (i.e. dr30, etc.). Refer to the User’s Manual for detailed operating instructions. L.
SECTION IV SERVICE/PARTS INFORMATION A. SERVICE 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 area.
SECTION V 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. a. If a warranty card did not come with your dryer, contact the ADC Warranty Department or the ADC Service Department at (508) 678-9000.
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 for a credit or a refund, the invoice number covering the purchase of the replacement part must be provided. NOTE: Warranty tags (ADC Part No.
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 proper air circulation. The accumulation of lint can restrict this airflow.
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 (tumbler), drive motors, and surrounding areas. 2. Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment. 3.
C. LUBRICATION 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) and idler bearings used in the dryer DO NOT have a grease fitting.
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 information provided will help isolate the most probable components associated with the difficulty described.
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 (tumbler) is binding...check for an obstruction. e. Failed idler bearings or basket (tumbler) bearings. E. Blower motor is not operating (does not start)... 1.
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) light emitting diode (L.E.D.) display reads “dSFL”... 1. Fault in microprocessor heat sensing circuit... a.
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 message(s) or only partial segments... 1. Transient power voltage (spikes)...disconnect power to dryer, wait 1 minute and reestablish power to the dryer...
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 ignitor/flame-probe assembly. 5. Failed DSI module (burner control). 6. Failed gas valve. Q. No heat...STEAM MODELS ONLY... 1.
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 sensor calibration is inaccurate. 11. Failed burner hi-limit (for GAS MODELS ONLY). 12. Failed lint chamber hi-heat protector thermostat. 13.
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.
SECTION VIII DATA LABEL INFORMATION A. DATA LABEL Contact American Dryer Corporation 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.
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 ALL possible options on your particular model. 4.
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 controller (computer) light emitting diode (L.E.D.) display are on. (Refer to the illustration below.) d.
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 the dryer. i. Functional check of microprocessor controller (computer) board is complete. 2.
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 (pre-purge time). d. The module’s indicator light will then turn “green.” The gas valve will be energized and the ignitor probe will spark for approximately 8-seconds.
SECTION X BURNER AND BASKET (TUMBLER)/LINT CHAMBER MANUAL RESET HI-LIMIT INSTRUCTIONS IMPORTANT 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 cycle, or during the cycle, the dryer will not recognize the open state of the burner hi-limit thermostat and will start or continue through the drying cycle with no heat.
IMPORTANT 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 the open state of the hi-limit thermostat and will start or continue through the drying cycle with no heat. Manual reset hi-limit must be reset manually.
ADC 113311 1 - 02/06/01-35 2 * 09/19/01-25
