AD-170SE (Straight Exhaust) Installation/Operator’s 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. 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.
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 properly licensed 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.
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 AND DANGEROUS OPERATION. VERIFY PROPER OPERATION AFTER SERVICING.
FOR YOUR SAFETY DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPOR AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER APPLIANCE . DO NOT DRY MOP HEADS IN THE DRYER. DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation/operator's manual included with the dryer. Dryer(s) must not be installed or stored in an area where it will be exposed to water and/or weather.
Table of Contents SECTION I IMPORTANT INFORMATION A. RECEIVING and HANDLING ....................................................................................................... 3 B. SAFETY PRECAUTIONS .............................................................................................................. 4 SECTION II SPECIFICATIONS A. SPECIFICATIONS (Gas and Steam Models) .................................................................................. 6 B. COMPONENT IDENTIFICATION ...............
SECTION VII TROUBLESHOOTING .................................................................................................................... 44 SECTION VIII REVERSING TIMER SPIN / DWELL ADJUSTMENTS ............................................................ 61 SECTION IX DATA LABEL LOCATION/INFORMATION ................................................................................ 62 SECTION X PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMONENTS ................
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 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.
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 also may be a fire hazard. 7. A program should be established for the inspection and cleaning of lint in the heating unit area, exhaust duct work, and inside the dryer.
SECTION II SPECIFICATIONS / COMPONENT IDENTIFICATION A. SPECIFICATIONS (GAS and STEAM) Maximum Capacity (Dry Weight) 170 lbs. 77.1 kg Basket Diameter 51-1/2" 130.8 cm Basket Depth 42-1/2" 107.9 cm Basket Motor 1 HP .746 kw Blower Motor 7-1/2 HP 5.6 kw 31-3/8" 79.7 cm 51.2 cu. ft. 1.45 cu. m. Door Opening (Diameter) Basket Volume Dryers Per 20' / 40' Container 3/7 Dryers Per 45' / 48' Truck 8/8 Voltage Available 208-600v / 3Ø / 3, 4w 50/60Hz 550,000 btu/hr 138,600 kcal/hr Approx.
Specifications ADG-170SE ADS-170SE NOTE: OPERATING HEIGHT OF STEAM DRYER IS 101 inches (256.54 cm). 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.
2. DRYER REAR VIEW Illus. No. 1 2 3 4 5* 6 7 8 9 10 11 * Description Basket (Drive) Motor Assembly Blower Motor Mount Assembly Idler Bearing Mount Assembly Tumbler Bearing Mount Assembly Electric Service Relay Box Heating Unit Data Label and Installation Label 1/8" Compressed Air Supply Inlet (Behind Gusset) Side Access Opening Front Access Opening Impellor (fan) Assembly Electric service connections 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.Z223.1-LATEST EDITION (National Fuel Gas Code) and/or ANSI/NFPA NO. 70-LATEST EDITION (National Electric Code) A. LOCATION REQUIREMENTS Before installing the dryer, be sure the location conforms to local codes and ordinances.
B. UNPACKING/SETTING UP Remove protective shipping material (i.e., plastic wrap, and/or 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 while still attached to the skid or with the skid removed. To un-skid the dryer, locate and remove the four (4) lag bolts securing the base of the dryer to the wooden skid.
3. 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 Upper Left Hand Corner of Dryer. 2) Remove the eight (8) set of nuts and washers (B) holding the console (module) to base. 3) Disconnect white plug connector (C) located on top of the rear electric service/relay box (provides power to the heat circuit). 4) Disconnect air connection from the 3-way micro valve.
C. DRYER ENCLOSURE REQUIREMENTS Even though a 12-inch clearance is acceptable, it is recommended that the rear of the dryer be positioned approximately two (2) feet (24-inches) 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 and must not extend more than 4-inches to the rear of the dryer front.
D. FRESH AIR SUPPLY 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" problems may result, as well as premature motor failure from overheating.
E. EXHAUST REQUIREMENTS 1. GENERAL EXHAUST DUCT WORK INFORMATION Exhaust duct work should be designed and installed by a qualified professional. Improperly sized duct work 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.. CAUTION: DRYER MUST BE EXHAUSTED TO THE OUTDOORS.
a.Outside Duct Work Protection 1) To protect the outside end of horizontal duck work from the weather, a 90° elbow bent downward should be installed where the exhaust exits the building. If the exhaust duct work travels vertically up through the roof, it should be protected from the weather by using a 180° turn to point the opening downward. In either case, allow at least twice the diameter of the duct between the duct opening and the nearest obstruction.
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 duct work travels as directly as possible to the outdoors with as few turns as possible. It is suggested that the use of 90° turns in ducting be avoided; use 30° and/or 45° angles instead. The shape of the exhaust duct work is not critical so long as the minimum cross section area is provided.
IMPORTANT: For extended duct work runs, the cross section area of the duct can only be increased to an extent. Maximum proportional duct work runs cannot exceed twenty (20) feet more than the original limitations of twenty (20) feet with two (2) elbows. When the duct work approaches the maximum limits as noted in this manual, a professional heating venting air conditioning (HVAC) firm should be consulted for proper venting information.
The main duct may be any shape or cross sectional area, so long as the minimum cross section area is provided. The illustrations on page 19 and page 20 show the minimum cross section area for multiple dryer round or square venting. These figures must be increased 10 square inches when rectangular main ducting is used, and the ratio of duct width to depth should not be greater than 3-1/2 to 1.
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 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.70-LATEST EDITION.
2. Electrical Service Specifications ADG-170SE (Gas) ADS-170SE (Steam) ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER) 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. C.
3. Electrical Connections NOTE: A wiring diagram is included with each dryer and is affixed to the rear upper right guard/ panel of the dryer. 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. These electrical connections are made at the terminal block located in the electric service/relay box at the rear, upper left hand corner of the dryer.
4. Grounding Grounding (earth) connections must be provided and installed in accordance with state and local codes. In the absence of the codes, grounding must conform to applicable requirements of the National Electric Code ANSI/NFPA NO.70LATEST EDITION. The ground connection may be to a proven earth ground at the location service panel. NOTE: A grounding connection (terminal lug) is provided in the dryer's electrical service/relay box at the rear, upper left hand corner of the 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 with 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.
2. Technical Gas Data a. Gas Specifications Type of Gas Manifold Pressure* Inline Pressure Natural Liquid Propane 3.5-4.0 inches W.C. 10.5 - 11.0 inches W.C. 6.0 to 12.0 inches W.C. 11.0 inches W.C. * Measured at gas valve pressure tap when the gas valve is on. b. Gas Connections: Inlet connection ----- 1-1/2-inch N.P.T. Inlet supply size ----- 1-1/2-inch N.P.T. (minimum) Btu/hr input (per dryer) ----- 550,000 1) Natural Gas Regulation is controlled by the dryer's gas valve's internal regulator.
3. Piping/Connections ALL components/materials must conform to National Fuel Gas Code Specifications. It is important that gas pressure regulators meet applicable pressure requirements and that gas meters be rated for the total amount of all the appliance Btu's being supplied. The dryer is provided with a 1-1/2-inch N.P.T. inlet pipe connection extending out the back area of the burner box. The minimum pipe size connection (supply line) to the dryer is 1-1/2-inch N.P.T.
IMPORTANT: The dryer and its individual shut-off 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 (3.5kPa). NOTE: The dryer must be isolated from the gas supply piping system by closing its individual manual shut-off valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5kPa).
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 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.
a. The pressure of the condensate in the steam supply will cause water hammer and subsequent heat exchanger (steam coil) failure. The steam supply connection into the main supply line must be made within a minimum 12-inch riser. This will prevent any condensate from draining towards the dryer. b. The steam supply piping to the dryer must include a 12-inch 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.
3. STEAM DAMPER AIR SYSTEM CONNECTIONS The ADS-170SE 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 of the top console. a. Air Requirements Compresses Air Supply Air Pressure Normal 80 psi Minimum Supply 70 psi Maximum Supply 90 psi b. Air Connection Air connection to system --- 1/8-inch F.P.T. c.
5. STEAM DAMPER AIR PISTON (Flow Control) OPERATION ADJUSTMENT Although the damper operation was tested and adjusted prior to shipping at 80 psi, steam damper operation must be checked before the dryer is put into operation. Refer to the illustration above for correct 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 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 laffixed to the left inside front side panel (refer to the illustration in Section IX of this manual). In 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. 2. Make sure the main door is closed and the lint drawer is securely in place. 3. System controls operational test -- to start the dryer ... a.
4. Check to insure that the basket (tumbler) starts in the clockwise (CW) direction. Additionally, check the direction of the blower motor impellor/fan (squirrel cage) to insure that it is operating in the correct direction (blower motor pulley should be turning in the counter clockwise [CCW] direction). If it is, the phasing is correct. If the phasing is incorrect, reverse two (2) leads at L1, L2, or L3 of the power supply connection made to the dryer.
6. Make a complete operational check of ALL safety-related circuits (i.e., lint drawer switch, and sail switch on gas models). NOTE: To check for proper sail switch operation, 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. 7. A reversing basket (tumbler) dryer should never be operated with less than a 60 lb. load (dry weight).
L. COMPRESSED AIR REQUIREMENTS The model AD-170 dryer requires an external supply of compressed air of 2.5 cfm @ 80PSI. For Steam Models, compressed air is necessary for the air operated steam damper. On both the Steam Model as well as the Gas Model, compressed air is necessary/required for blower air jet operation...to clean lint from the impellor/fan (squirrel cage). 1. Air Requirements Compressed Air Supply Air Pressure Normal 80 PSI Minimum Supply 70 PSI Maximum Supply 90 PSI 2.
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 distributor from whom the ADC equipment was purchased. If the distributor cannot be contacted or is unknown, contact the ADC Service Department for a distributor in your area.
SECTION V WARRANTY INFORMATION A. RETURNING WARRANTY CARD(S) 1. Before any dryer leaves the ADC factory test area, a warranty card (ADC Part No. 112254) 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 (ADC Part No.
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 and/or schedule should be established for periodic inspection, cleaning, and removal of lint from various areas of the dryer, as well as throughout the duct work 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 air flow.
STEAM DRYERS Clean the steam coil fins. We suggest using compressed air and a vacuum cleaner with brush attachment. WARNING: When cleaning steam coil fins, be careful not to bend the fins. If fins are bent, straighten by using a fin comb which is available from local air-conditioning supply houses. 90 DAYS Re-grease the two (2) 1-3/8-inch bearings that support the impellor/fan shaft. Use Shell Alvania #3 grease or its equivalent. Impellor/fan shaft bearings should be lubricated.
B. ADJUSTMENTS 7 Days After Installation and Every 6 Months Thereafter Inspect bolts, nuts, screws (bearing set screws), non-permanent gas connections (unions, shut-off valves, orifices, and grounding connections). Motor and drive belts should be examined. Cracked or seriously frayed belts should be replaced. Tighten loose V-belts when necessary. Complete operational check of controls and valves.
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 component(s) associated with the difficulty described.
B. Drive motor not operating (does not start) ... 1. Failed drive motor contactor (relay). 2. Failed arc suppressor (A.S.) board. 3. Failed drive motor. 4. Failed microprocessor controller (computer). C. Drive motor (reversing) operates in one direction only ... stops and restarts in same direction ... 1. Failed drive motor contactor (relay). 2. Failed arc suppressor (A.S.) board. 3. Failed microprocessor controller (computer). D.
NOTE: V-Belts to tight or bearings not lubricated often enough. G. Both drive motor and blower (impellor/fan) motor not operating (do not start) ... microprocessor controller (computer) motor indicator dots and relay output L.E.D. indicator dots are on ... 1. Failed arc suppressor (A.S.) board. 2. Failed contactors (both blower and drive). 3. Failed (both blower and drive) motor. H. Both drive motor and blower (impellor/fan) motor not operating (do not start) ...
b. Lint drawer switch out of proper adjustment. c. Failed lint drawer switch. d. Failed main door switch. e. Broken connection / wire in main door or lint drawer circuit. 2. Failed 24 VAC step down transformer or fault in writing. L. Microprocessor controller (computer) L.E.D. display reads "door" and microprocessor controller (computer) "door" L.E.D. indicator is on... 1. Failed microprocessor controller (computer). M . Microprocessor controller (computer) will not accept any keyboard entries, i.e., L.E.
R. Microprocessor controller (computer) L.E.D. display reads "SEFL"... 1. Rotational sensor circuit (option) failure...fault somewhere in basket (tumbler) rotation or circuit ... a. Basket (tumbler) not rotating ... 1) Broken or loose V-Belts. 2) Failure in drive motor circuit...refer to Item B, Item C, and/or Item D in this Troubleshooting Section. b. Failed rotational sensor. c. Broken wire or connection between sensor and microprocessor controller (computer). 2.
STEAM MODELS 1. Fault in lint chamber sensor bracket basket (tumbler) hi-limit switch. U. Heat unit not operating (no heat)...no voltage at heating unit (i.e., Gas Model DSI module or Steam Model damper system pneumatic solenoid) when dryer is first started and the microprocessor controller (computer) heat indicator dot is on but the "HEAT" relay output L.E.D. is NOT on...... 1. Failed microprocessor controller (computer). V. No heat...voltage is confirmed at heating unit (i.
STEAM MODELS 1. No (external) compressed air (80 PSI required) to steam damper solenoid. 2. Flow control valve is not adjusted correctly... a. Too much restriction. 3. Failed steam damper pneumatic (air) solenoid. 4. Damper stuck in "closed" position... a) Check for obstruction. 5. Leak in the pneumatic (air) system. 6. Failed air piston. W. Dryer operates but is taking too long to dry... 1. Exhaust duct work run too long or is undersized...back pressure cannot exceed .3 inches water column. 2.
7. Gas Models a. Low and/or inconsistent gas pressure... Natural Gas pressure must be between 3.5 inches and 4.0 inches of water column. Liquid Propane (L.P.) pressure must be between 10.5 inches and 11.0 inches of water column. b. Poor air/gas mixture (too much gas or not enough air) at burner...yellow or poor flame pattern... 1) Not enough make-up air. 2) Restriction in exhaust. 3) Gas pressure too high. 4) Impellr (blower/fan) "squirrel cage" rotating in the wrong direction. 5) Burner orifice size (D.M.
2) Leak in pneumatic (air) system. 9. Extractors (washers) not performing properly 10. Failed lint chamber hi-heat switch (thermostat)...opens at incorrect temperature. 11. Failed microprocessor (computer controlled models ONLY)...temperature calibration is inaccurate. 12. Failed microprocessor temperature sensor (computer controlled models ONLY) ...calibration is inaccurate. 13. Exceptionally cold/humid or low barometric pressure atmosphere. 14.
3. Loose basket (tumbler) tie rod. 4. Failed basket (tumbler) support. AA. Excessive noise and/or vibration... 1. Dryer is not leveled properly. 2. Impellor (fan/blower) "squirrel cage" out of balance. a. Excessive lint build-up impellor (fan/blower) "squirrel cage." NOTE: Check to insure that the air jet is functioning. b. Failed impellor (fan/blower) "squirrel cage." 3. Loose basket (tumbler) tie rod. 4. Failed basket (tumbler) support. 5. Loose motor mount. 6.
B . Drive motor not operating (does not start)... 1. Failed drive motor contactor (relay). 2. Failed drive motor. C. Drive motor (reversing) operates in one direction only...stops and restarts in same direction... 1. Failed reversing contactor (relay). 2. Failed reversing timer. D. Drive motor operates okay for a few minutes, and then stops and will not restart... 1. Motor is overheating and tripping out on overload protector... a. Motor air vents clogged with lint. b. Low voltage to the motor. c.
G. Both drive motor and blower (impellor /fan) motor not operating (do not start) and indicator light is on... 1. Fault in L1 or L2 termination(s) between terminal block and contactors (relays). 2. Failed contactors (both blower and drive). 3. Failed (both blower and drive) motor(s). H. Heating unit is not operating (no heat)...no voltage at heating unit (i.e., Gas Model DSI module or Steam Model damper system pneumatic solenoid)... GAS MODELS 1. Fault in sail switch circuit... a.
STEAM MODELS 1. Failed lint chamber sensor bracket basket (tumbler) hi-limit switch circuit. 2. Failed temperature selection switch or circuit. 3. Failed temperature cycle thermostat (try another selection). 4. Failed heat timer. I. No heat...voltage is confirmed at heating unit (i.e., Gas Model DSI module or Steam Model damper system pneumatic solenoid)... GAS MODELS 1. Fault in Direct Spark Ignition (DSI) ignition system... a.
STEAM MODELS 1. No (external) compressed air (80 PSI required) to steam damper solenoid. 2. Flow control valve is not adjusted correctly... a. Too much restriction. 3. Failed steam damper pneumatic (air) solenoid. 4. Damper stuck in "closed" position... a. Check for obstruction. 5. Leak in the pneumatic (air) system. 6. Failed air piston. J. Dryer operates but is taking too long to dry... 1. Exhaust duct work run too long or is undersized...back pressure cannot exceed .3 inches water column (W.C.). 2.
b. Poor air/gas mixture (too much gas or not enough air) at burner...yellow or poor flame pattern... 1) Not enough make-up air. 2) Restriction in exhaust. 3) Gas pressure too high. 4) Impellor (blower/fan) "squirrel cage" rotating in the wrong direction. 5) Burner orifice size (D.M.S.) too large for application (i.e., high elevation). c. Sail switch is fluttering... 1) Restriction in exhaust... a) Lint drawer screen is dirty or is not being cleaned often enough. d. Failed burner hi-limit switch...
11. Failed microprocessor controller (computer controlled models ONLY)...temperature calibration is inaccurate. 12. Failed microprocessor temperature sensor (computer controlled models ONLY)...calibration is inaccurate. 13. Exceptionally cold/humid or low barometric pressure atmosphere. 14. Microprocessor temperature sensor (computer controlled models ONLY) is covered with lint.
N. Excessive noise and/or vibration... 1. Dryer is not leveled properly. 2. Impellor (fan/blower) "squirrel cage" out of balance. a. Excessive lint build-up impellor (fan/blower) "squirrel cage." NOTE: Check to insure that the air jet is functioning. b. Failed impellor (fan/blower) "squirrel cage." 3. Loose basket (tumbler) tie rod. 4. Failed basket (tumbler) tie rod. 5. Looses motor mount. 6. Failed idler, basket (tumbler), or fan (impellor) bearings. 7. V-Belt(s) either too tight or too loose. 8.
SECTION VIII REVERSING TIMER SPIN/DWELL ADJUSTMENTS Timer models have an electric reversing timer in the electric service box which is located in the upper left rear area of the dryer. Both the Dwell (stop) Time and basket (tumbler) Spin Time are adjustable by mode selection switches located on the electronic timer (as noted in the illustration below).
SECTION IX DATA LABEL LOCATION / INFORMATION Data Label When contacting American Dryer Corporation, certain information is required to insure proper service/ parts information from ADC. This information is on the data label that is located in the left inside front panel (as shown in the illustration above). When contacting ADC please have the model number and the serial number readily available.
THE DATA LABEL 1. MODEL DRYER 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 X PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 1. Microprocessor (computer) Board a. Upon completing installation of the replacement microprocessor (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 (computer) L.E.D. display are on. (Refer to the illustration below.) d.
e. Open main door. The dryer must stop and ALL output indicator lights on the back side of the microprocessor (computer) board must go out. f. Try to restart the dryer with the main door open. g. The microprocessor (computer) board's L.E.D. display must read "DOOR." h. Close the main door and restart the dryer. i. Functional check of microprocessor (computer) board is complete. 2. Direct Spark Ignition (DSI) System a.
ADC 112169 18 -11/23/05- 0