American Dryer Corp Clothes Dryer AD 81 III User Manual

AD-81 III Installation Manual  
Gas/Steam Models/Phase 7  
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.  
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.  
— Ne pas entreposer ni utiliser d’essence ni  
d’autres vapeurs ou liquides inflammables à  
proximité de cet appareil ou de tout autre  
appareil.  
— Do not store or use gasoline or other flammable  
vapors and liquids in the vicinity of this or any  
other appliance.  
— WHAT TO DO IF YOU SMELL GAS:  
— QUE FAIRE SI VOUS SENTEZ UNE ODEUR  
DE GAZ:  
• 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.  
• Ne pas tenter d’allumer d’appareils.  
• Ne touchez à aucun interrupteur. Ne pas  
vous servir des téléphones se trouvant dans  
le bâtiment.  
• Évacuez la pièce, le bâtiment ou la zone.  
• Appelez immédiatement votre fournisseur  
de gaz depuis un voisin. Suivez les  
instructions du fournisseur.  
• If you cannot reach your gas supplier, call  
the fire department.  
• Si vous ne pouvez rejoindre le fournisseur  
de gaz, appelez le service des incendies.  
— Installation and service must be performed by a  
qualified installer, service agency or the gas  
supplier.  
Linstallation et l’entretien doivent être assurés par  
un installateur ou un service d’entretien qualifié  
ou par le fournisseur de gaz.  
American Dryer Corporation  
88 Currant Road  
Fall River MA 02720-4781  
Telephone: (508) 678-9000 / Fax: (508) 678-9447  
E-mail: techsupport@amdry.com  
111902JEV/mcronan  
ADC Part No. 113159  
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IMPORTANT  
YOUMUSTDISCONNECTANDLOCKOUTTHEELECTRICSUPPLYANDTHEGAS  
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.  
«Attention: Au moment de l’entretien des  
commandes, étiquetez tous les fils avant de  
les débrancher. Des erreurs de câblage  
peuvent entraîner un fonctionnement  
inadéquat et dangereux.»  
“Caution: Label all wires prior to  
disconnection when servicing controls. Wiring  
errors can cause improper operation.”  
CAUTION  
DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION.  
WARNING  
CHILDREN SHOULD NOTBEALLOWEDTOPLAY ON OR NEAR THE DRYER(S).  
CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERATION.  
FOR YOUR SAFETY  
DO NOT DRY MOP HEADS IN THE DRYER.  
DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES.  
WARNING  
UNDER NO CIRCUMSTANCES should the dryer door switch, lint drawer switch, or  
the heat circuit safety devices ever be disabled.  
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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 OBSERVEALLSAFETY PRECAUTIONS displayed on the equipment and/or  
specified in the installation manual included with the dryer.  
Dryer must not be installed or stored in an area where it will be exposed to water or weather.  
The wiring diagram for the dryer is located in the front electrical control box area.  
IMPORTANT  
Dryer must be installed in a location/environment, which the ambient temperature  
remains between 40° F (4.44° C) and 130° F (54.44° C).  
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Table of Contents  
SECTION I  
SAFETY PRECAUTIONS .................................................................................................... 2  
SECTION II  
SPECIFICATIONS/COMPONENT IDENTIFICATION ..................................................... 4  
A. Specifications.................................................................................................................................... 4  
B. Component Identification .................................................................................................................. 6  
SECTION III  
INSTALLATION PROCEDURES ........................................................................................ 8  
A. Location Requirements ..................................................................................................................... 8  
B. Unpacking/Setting Up ....................................................................................................................... 9  
C. Dryer Enclosure Requirements ....................................................................................................... 10  
D. Fresh Air Supply Requirements ....................................................................................................... 10  
E. Exhaust Requirements .....................................................................................................................11  
F. Electrical Information...................................................................................................................... 16  
G. Gas Information .............................................................................................................................. 18  
H. Steam Information .......................................................................................................................... 22  
I. Water Information .......................................................................................................................... 25  
I. Preparation For Operation/Start-Up ................................................................................................ 27  
J. Preoperational Tests ....................................................................................................................... 28  
K. Preoperational Instructions .............................................................................................................. 30  
L. Shutdown Instructions ..................................................................................................................... 30  
SECTION IV  
SERVICE/PARTS INFORMATION ................................................................................... 31  
A. Service ........................................................................................................................................... 31  
B. Parts............................................................................................................................................... 31  
SECTION V  
WARRANTYINFORMATION ........................................................................................... 32  
A. Returning Warranty Cards .............................................................................................................. 32  
B. Warranty ........................................................................................................................................ 32  
C. Returning Warranty Parts ............................................................................................................... 32  
SECTION VI  
ROUTINE MAINTENANCE.............................................................................................. 34  
A. Cleaning ......................................................................................................................................... 34  
B. Adjustments.................................................................................................................................... 35  
C. Lubrication ..................................................................................................................................... 35  
D. Lint Drawer Removal ..................................................................................................................... 36  
SECTIONVII  
DATALABELINFORMATION ......................................................................................... 37  
SECTION VIII  
PROCEDURE FOR FUNCTIONAL CHECK OF  
REPLACEMENT COMPONENTS ................................................................................... 38  
SECTION IX  
MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS ................................................ 40  
A. Phase 7 ...............................................................................................................................40  
B. Dual Timer ...........................................................................................................................40  
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SECTION I  
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. Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the  
user smells gas. The instructions should be posted in a prominent location.  
3. WHAT TO DO IF YOU SMELL GAS:  
a. DO NOT try to light any appliance.  
b. DO NOT touch any electrical switch.  
c. DO NOT use any phone in your building.  
d. Clear the room, building, or area of ALL occupants.  
e. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.  
f. If you cannot reach your gas supplier, call the fire department.  
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.  
WARNING: Dry only water washed fabrics. DO NOT dry articles spotted or washed in dry  
cleaning solvents, a combustible detergent, or “all purpose” cleaner.  
EXPLOSION COULD RESULT.  
WARNING: DO NOT dry rags or articles coated or contaminated with gasoline, kerosene, oil, paint,  
or wax. EXPLOSION COULD RESULT.  
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 may be a fire hazard.  
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American Dryer Corp.  
113159-2  
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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. 70-LATEST EDITION or in Canada, the Canadian Electrical  
Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.  
NOTE: Failure to electrically ground the dryer properly willVOIDTHEWARRANTY.  
9. UNDER NO CIRCUMSTANCES should the dryer door switch, lint drawer switch, or the heat circuit  
safety devices ever be disabled.  
WARNING: PERSONAL INJURY OR FIRE COULD RESULT SHOULD THE DRYER  
DOOR SWITCH, LINT DRAWER SWITCH, OR THE HEAT CIRCUIT  
SAFETY DEVICES EVER BE DISABLED.  
10. This dryer is not to be used in the presence of dry cleaning solvents or fumes.  
11. Remove articles from the dryer as soon as the drying cycle has been completed.  
WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can  
create a fire hazard.  
12. DO NOT operate steam dryers with more than 125 psi (8.62 bar) steam pressure. Excessive steam  
pressure can damage steam coil and/or harm personnel.  
13. Replace leaking flexible steam hoses or other steam fixtures immediately. DO NOT operate dryer with  
leaking flexible hoses. PERSONAL INJURY MAY RESULT.  
14. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO DRYER.  
15. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less  
then sixty-six percent (66%), 50 lbs (22.68 kg) of its rated capacity.  
IMPORTANT: YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPLY  
AND THE GAS SUPPLY OR THE STEAM SUPPLY BEFOREANY  
COVERS OR GUARDS ARE REMOVED FROM THE MACHINE TO  
ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION, OR  
TESTING OF ANY EQUIPMENTPEROSHA (Occupational Safety and Health  
Administration) STANDARDS.  
IMPORTANT: Dryer must be installed in a location/environment, which the ambient  
temperature remains between 40° F (4.44° C) and 130° F (54.44° C).  
113159-2  
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SECTION II  
SPECIFICATIONS/COMPONENTIDENTIFICATION  
A. SPECIFICATIONS  
94 cm  
91.5 cm  
TUMBLER DIAMETER  
37”  
36”  
TUMBLER DEPTH  
0.634 cu m  
0.373 kW  
2.2 kW  
TUMBLER VOLUME  
22.4 cu ft  
1/2 hp  
3 hp  
TUMBLER MOTOR  
BLOWER MOTOR  
54.6 cm  
DOOR OPENING (DIAMETER)  
EXHAUST CONNECTION (DIAMETER)  
AIRFLOW  
21-1/2”  
14”  
35.56 cm  
48.14 cmm  
1,700 cfm  
DRYERS PER 20’/40’ CONTAINER  
DRYERS PER 48’/53’ TRUCK  
WATER CONNECTION**  
VOLTAGE AVAILABLE  
10 / 20  
24 / 26  
3/4”-11.5 NH  
208-480v 3ø 3, 4w 50/60 Hz  
377.8 kg  
400.5 kg  
APPROX. NET WEIGHT  
APPROX. SHIPPING WEIGHT  
HEAT INPUT  
833 lbs  
883 lbs  
68,040 kcal/hr  
270,000 Btu/hr  
INLET PIPE CONNECTION  
VOLTAGE AVAILABLE  
1” F.N.P.T.  
208-480v 3ø 3, 4w 50/60 Hz  
420.9 kg  
443.6 kg  
0.02 cmh  
APPROX. NET WEIGHT  
APPROX. SHIPPING WEIGHT  
COMPRESSED AIR VOLUME  
COMPRESSED AIR CONNECTION  
STEAM CONSUMPTION  
OPERATING STEAM PRESSURE  
BOILER HP NORMAL LOAD  
SUPPLY CONNECTION  
928 lbs  
978 lbs  
0.75 cfh  
1/8” F.N.P.T.  
170.5 kg/hr  
8.6 bar  
375 lbs/hr  
125 psi max  
11  
1” F.N.P.T.  
1” F.N.P.T.  
RETURN CONNECTION  
Shaded areas are stated in metric equivalents  
4/27/04  
*
Air-operated steam damper system must be provided with clean, dry and regulated 80 psi +/- 10 psi (5.51 bar +/- 0.69 bar) air supply.  
** Water supply must be 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) for the fire suppression system to operate properly.  
IMPORTANT: Steam dryers must be provided with a clean, dry, and regulated 80 psi +/- 10 psi  
(5.51 bar +/- 0.68 bar) air supply. Air volume requirement is 0.75 cfh (cubic feet per  
hour) (0.02 cmh [cubic meters per hour]).  
NOTE: ADC reserves the right to make changes in specifications at any time without notice or  
obligation.  
4
American Dryer Corp.  
113159-2  
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Specifications  
NOTE: ADC reserves the right to make changes in specifications at any time without notice or  
obligation.  
113159-2  
5
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B. COMPONENT IDENTIFICATION  
1. Dryer Front View  
Illus. No.  
Description  
1
2
3
4
5
6
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  
6
American Dryer Corp.  
113159-2  
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2. Dryer Rear View  
Illus. No.  
Description  
1
2
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  
3*  
4
5
6
7
Leveling Leg (rear)  
8
9
Basket (tumbler) Drive Motor Assembly (reversing models only)  
Dryer Exhaust  
* Electric service connections for gas and steam models are made in this box.  
NOTE: 1/8-inch compressed air supply inlet (for steam models only) is located behind the electric  
service relay box (not illustrated).  
113159-2  
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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 conformto 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 & 2 CSA C22.1-1990 or LATEST EDITION  
(for Electrical Connections).  
A. LOCATION REQUIREMENTS  
Before installing the dryer, be sure the location conforms to local codes and ordinances. In the absence of such  
codes or ordinances the location must conform with the National Fuel Gas Code ANSI.Z223.1 LATEST  
EDITION, or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-  
M91 (Natural Gas) or CAN/CGA-B149.2-M91 (L.P. Gas) or LATEST EDITION (for General Installation and  
Gas Plumbing)  
1. The dryer must be installed on a sound level floor capable of supporting its weight. Carpeting must be  
removed from the floor area that the dryer is to rest on.  
IMPORTANT: “The dryermust be installed on noncombustible floors only.”  
2. The dryer must not be installed or stored in an area where it will be exposed to water and/or weather.  
3. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply  
Requirements in Section D).  
4. Clearance provisions must be made from combustible construction as noted in this manual (refer to Dryer  
Enclosure Requirements in Section C).  
5. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual  
(refer to Dryer Enclosure Requirements in Section C).  
6. The dryer must be installed with a proper exhaust duct connection to the outside as noted in this manual  
(refer to Exhaust Requirements in Section E).  
7. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual  
(refer to Exhaust Requirements in Section E).  
IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary.  
8. The dryer must be installed with adequate clearance for air openings into the combustion chamber.  
CAUTION: This dryer produces combustible lint andmust be exhausted to the outdoors. Every 6  
months, inspect the exhaust ducting and remove any lint buildup.  
IMPORTANT: Dryer must be installed in a location/environment, which the ambient  
temperature remains between 40° F (4.44° C) and 130° F (54.44° C).  
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American Dryer Corp.  
113159-2  
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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.  
THIS EXHAUST DUCT TRANSITION PIECE  
MUST BE INSTALLED FIRST!  
Failure to observe this installation requirement may result in  
damage to the dryer, create aFIRE HAZARD and will VOID  
the manufacturer’s warranty.  
012999JEV-GS/cj  
P/N: 114092  
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. Using the screws provided, secure the exhaust transition  
piece to the dryer.  
NOTE: It is recommended that this joint be taped as well as  
ALL other duct joints to prevent moisture and lint  
from escaping into the building.  
2. Leveling Dryer  
The dryer is equipped with four (4) leveling legs, one (1) at  
each corner of the dryer base. Two (2) are located in the rear  
of the dryer base, and two (2) are located in the lint chamber.  
To increase bearing life and improve efficiency, the dryershould  
be tilted slightly to the rear.  
113159-2  
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C. DRYER ENCLOSURE REQUIREMENTS  
Bulkheads and partitions should be made of noncombustible material.  
NOTE: Allowances must be made for opening the control door.  
A 30-inches (76.2 cm) for optimum opening of load door.  
B The maximum thickness of the bulkhead is 4-inches (10.16 cm). For electric dryers the maximum thickness  
of the bulkhead is 1-inch (2.54 cm) within 3-inches (7.62 cm) from the top of the control door.  
C For gas and electric dryers a minimum overhead clearance of 12-inches (30.48 cm) is required, providing no  
sprinkler is located above the dryer. For steam dryers or if a sprinkler is located above the dryer, 18-inches  
(45.72 cm) is required  
D Dryer should be positioned 12-inches (30.48 cm) away from the nearest obstruction and 24-inches  
(60.96 cm) is recommended for ease of installation, maintenance, and service.  
E 2-inch (5.08 cm) minimum is required for opening the control door.  
F Flooring should be level or below dryer cabinet for ease of removing panels during maintenance.  
G Dryers may be positioned sidewall to sidewall, however a 1/16” (1.5875 mm) minimum allowance must be  
made for the opening and closing of the control door, along with the removal of panels during maintenance.  
D. FRESH AIR SUPPLY REQUIREMENTS  
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.  
Air supply (make-up air) must be given careful consideration to ensure proper performance of each dryer. An  
unrestricted source of air is necessary for each dryer. An airflow of 1,700 cfm (cubic feet per minute) (48.14  
cmm [cubic meters per minute]) must be supplied to each dryer. As a general rule, an unrestricted air entrance  
from the outdoors (atmosphere) of a minimum of 2-1/2 square feet (0.23 square meters) is required for each  
dryer. The dryer must be installed with provisions for adequate combustion and make-up air supply.  
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American Dryer Corp.  
113159-2  
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To compensate for the use of registers or louvers used over the openings, the air must be increased by  
approximately thirty-three percent (33%). Make-up air openings should not be located in an area directly near  
where exhaust vents exit the building.  
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. The dryer must be installed with provisions for adequate combustion and make-up air supply.  
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) are acceptable.  
Allowances must be made for remote or constricting passageways or where dryers are located at excessive  
altitudes or predominantly low pressure areas.  
IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes.  
Make-up air that is contaminated by dry cleaning solvent fumes will result in  
irreparable damage to the motors and other dryer components.  
NOTE: Component failure due to dry cleaning solvent fumes willVOIDTHEWARRANTY.  
E. EXHAUST REQUIREMENTS  
1. General Exhaust Ductwork Information  
Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductwork  
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. The dryer must be installed with a proper exhaust duct connection to the outside.  
CAUTION: This dryer produces combustible lint andmust be exhausted to the outdoors.  
CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCTWORK CAN  
CREATE A POTENTIAL FIRE HAZARD.  
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The ductwork 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. Single or independent dryer venting is recommended.  
When single dryer venting is used, the length of the ductwork from the dryer to the outside exhaust outlet  
must not exceed 15 feet (4.57 meters). The minimum diameter of this ductwork must be at least  
14-inches (35.56 cm). In the case of multiple (common) dryer venting, the distance from the last dryer to  
the outside exhaust outlet must not exceed 15 feet (4.57 meters). The shape of the ductwork is not  
critical as long as the minimum cross section area is provided. It is suggested that the use of 90° turns be  
avoided; use 30° and/or 45° angles instead. The radius of the elbows should preferably be 1-1/2 times  
the diameter of the duct. Including basket (tumbler) dryer elbow connections or elbows used for outside  
protection from the weather, no more than three (3) elbows should be used in the exhaust duct run. If  
more than three (3) elbows are used, the cross section area of the ductwork must be increased in proportion  
to the number of elbows added.  
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork  
system.  
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.  
IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust  
duct area must be no less than 0 andmust not exceed 0.3 inches (0.74 mb) of water  
column (W.C.).  
IMPORTANT: Minimum ductwork diameter is 14-inches (35.56 cm).  
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible  
materials, the openingmust be2-inches (5.08 cm) larger than the duct (all the way around).  
The duct must be centered within this opening.  
Outside Ductwork Protection  
To protect the outside end of the horizontal ductwork from the weather, a 90º 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. In either case,  
allow at least twice the diameter of the duct opening and the nearest obstruction.  
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust  
ductwork.  
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113159-2  
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2. Single Dryer Venting  
When 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 as long as the minimum cross section area is  
provided.  
IMPORTANT: Minimum duct size for a dryer is 14-inches (35.56 cm) for a round duct or  
12-1/2” x 12-1/2” (31.75 cm x 31.75 cm) for a square duct. THE DUCT SIZE  
MUST NOT BE REDUCED ANYWHERE DOWNSTREAM OF THE  
DRYER.  
IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust  
duct area must be no less than 0 andmust 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 three  
(3) elbows. If the ductwork exceeds 15 feet (4.57 meters) or has numerous elbows, the cross section area  
of the ductwork must be increased in proportion to the length and number of elbows in it. In calculating  
duct size, the cross section area of a square or rectangular duct must be increased by twenty percent  
(20%) for each additional 15 feet (4.57 meters). The diameter of a round exhaust duct should be increased  
ten percent (10%) for each additional 15 feet (4.57 meters). Each 90º elbow is equivalent to an additional  
30 feet (9.14 meters), and each 45º elbow is equivalent to an additional 15 feet (4.57 meters).  
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork  
system.  
IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be  
increased to an extent. When the ductwork approaches the maximum limits as noted  
in this manual, a professional heating, ventilating, and air-conditioning (HVAC) firm  
should be consulted for proper venting information.  
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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.  
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible  
materials, the openingmust be 2-inches (5.08 cm) larger than the duct (all the way around).  
The duct must be centered within this opening.  
Outside Ductwork Protection  
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 exhaust ductwork travels vertically up  
through the roof, itshould be protected from the weather by using a 180º 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.  
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust  
ductwork.  
3. Multiple Dryer (common) Venting  
If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be  
channeled into a “common main duct.” The individual ducts should enter the bottom or side of the main  
duct at an angle not more than 45º in the direction of airflow and should be spaced at least 38-1/4” (97.15  
cm) apart. The main duct should be tapered, with the diameter increasing before each individual duct  
is added.  
IMPORTANT: No more than four (4) dryers should be connected to one (1) main common duct.  
The main duct may be any shape as long as the minimum cross-sectional area is provided. The illustration  
on page 15 shows the minimum cross section area for multiple dryer round or square venting. These  
figures must be increased 10 square inches (64.52 square centimeters) when rectangular main ducting is  
used, and the ratio of duct width to depth should not be greater than 3-1/2 to 1. These figures must be  
increased in proportion if the main duct run to the last dryer to where it exhausts to the outdoors is unusually  
long (over 15 feet [4.57 meters]) or has numerous (more than three [3]) elbows in it. In calculating  
ductwork size, the cross section area of a square or rectangular duct must be increased twenty percent  
(20%) for each additional 15 feet (4.57 meters). The diameter of a round exhaust must be increased ten  
percent (10%) for each additional 15 feet (4.57 meters). Each 90º elbow is equivalent to an additional 30  
feet (9.14 meters) and each 45º elbow is equivalent to an additional 15 feet (4.57 meters).  
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 three (3)  
elbows. When the ductwork approaches the maximum limits as noted in this manual,  
a professional heating, ventilating, and air-conditioning (HVAC) firm should be  
consulted for proper venting information.  
IMPORTANT: Exhaust back pressure measured by a manometer at each dryer exhaust duct area  
must be no less than 0 andmust not exceed 0.3 inches (0.74 mb) of water column  
(W.C.).  
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The 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.  
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible  
materials, the openingmust be2-inches (5.08 cm) larger than the duct (all the way around).  
The duct must be centered within this opening.  
Outside Ductwork Protection  
To protect the outside end of the horizontal ductwork from the weather, a 90º elbow bent downward should  
be installed where the exhaust exits the building. If the exhaust ductwork travels vertically up through the  
roof, it should be protected from the weather by using a 180º turn to point the opening downward. In  
either case, allow at least twice the diameter of the duct between the duct opening and nearest obstruction.  
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust  
ductwork.  
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork  
system.  
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F. ELECTRICAL INFORMATION  
1. Electrical Requirements  
ALL electrical connections must be made by a properly licensed and competent electrician. This  
is to ensure 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. 70-LATEST EDITION or in  
Canada, the Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.  
IMPORTANT: Failure to comply with these codes or ordinances, and/or the requirements stipulated  
in this manual can result in personal injury or component failure.  
NOTE: Component failure due to improper installation willVOIDTHE WARRANTY.  
Each dryer should be connected to an independently protected branch circuit. The dryer must be connected  
with copper wire only. DO NOT use aluminum wire, it can create a fire hazard. The copper conductor  
wire/cable must be of proper ampacity and insulation in accordance with electric codes for making ALL  
service connections.  
NOTE: The use of aluminum wire willVOIDTHE WARRANTY.  
IMPORTANT: A separate protected circuitmust be provided to each dryer.  
NOTE: An individual ground circuit must be provided to each dryer, do not daisy chain.  
IMPORTANT: The dryer must be connected to the electric supply shown on the data label. In the  
case of 208 VAC or 240 VAC, the supply voltage must match the electric service  
specifications of the data label exactly.  
IMPORTANT: The wire size must be properly sized to handle the related current.  
WARNING: 208 VAC AND 240 VACARE NOT THE SAME. Any damage done to dryer  
components due to improper voltage connections will automatically VOID THE  
WARRANTY.  
NOTE: Component failure due to improper voltage application willVOIDTHEWARRANTY.  
NOTE: The manufacturer reserves the right to make changes in specifications at any time without  
notice or obligation.  
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2. Electrical Service Specifications  
Gas and Steam Models Only  
ELECTRIC SERVICE SPECIFICATIONS (PER DRYER)  
208 VAC AND 240 VAC ARE NOT THE SAME. When ordering,  
specify exact voltage.  
IMPORTANT:  
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. Circuit breakers are thermal-magnetic (industrial) motor curve type  
ONLY. For others, calculate/verify correct breaker size according to  
appliance amp draw rating and type of breaker used.  
APPROX.  
AMP DRAW  
SERVICE  
VOLTAGE  
WIRE  
SERVICE  
CIRCUIT  
BREAKER  
PHASE  
60 Hz 50 Hz  
208  
240  
380/400  
416  
440  
460/480  
3ø  
3ø  
3ø  
3ø  
3ø  
3ø  
3
3
4*  
4*  
4*  
3
14.4  
14.0  
--  
--  
--  
--  
15.9  
8.4  
8.7  
8.6  
--  
20  
20  
15  
15  
15  
15  
7.5  
*3-Wire is available. Customer must contact the factory to special order 3-wire systems.  
4/15/04  
3. Grounding  
A ground (earth) connection must be provided and installed in accordance with state and local codes. In  
the absence of these codes, grounding must conform to applicable requirements of the National Electrical  
Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the installation must conform to applicable  
Canada Standards: Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION. The  
ground connection may be to a proven earth ground at the location service panel.  
For added personal safety, when possible, it is suggested that a separate ground wire be connected from the  
ground connection of the dryer to a grounded cold water pipe. DO NOT ground to a gas pipe or hot  
water pipe. The grounded cold water pipe must have metal-to-metal connection ALL the way to the  
electrical ground. If there are any nonmetallic interruptions, such as, a meter, pump, plastic, rubber, or other  
insulating connectors, they must be jumped out with no. 4 copper wire and securely clamped to bare metal  
at both ends.  
IMPORTANT: For personal safety and proper operation, the dryer must be grounded.  
Provisions are made for ground connection in each dryer at the electrical service connection area.  
4. Electrical Connections  
A wiring diagram is located inside the control box for connection data.  
If local codes permit, power to the dryer can be made by the use of a flexible U.L. listed power cord/pigtail  
(wire size must conform to rating of dryer), or the dryer can be hard wired directly to the service breaker  
panel. In both cases, a strain relief must be installed where the wiring enters the dryer.  
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Gas and Steam Models Only  
IMPORTANT: A separate protected circuitmust beprovided  
to each dryer.  
3-Phase (3ø) Wiring Connections/Hookup  
The electrical connections on ALL 3-phase (3ø) gas and steam  
dryers are made into the rear service box located at the upper left  
area of the dryer. The electrical connections are made at the  
power distribution block located in the service box. The ground  
connection is made to the copper lug, also provided in this box.  
To gain access, the service box cover must be removed.  
The neutral will only be used on 4-wire service. This is typical for  
380-416V, 50 Hz.  
G. GAS INFORMATION  
It is your responsibility to have ALL plumbing connections made by a qualified professional to ensure 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 workmanshipmust 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-M91 (Liquid Propane [L.P.] Gas) or LATEST  
EDITION.  
IMPORTANT: Failure to comply with these codes or ordinances, and/or the requirements stipulated  
in this manual, can result in personal injury and improper operation of the dryer.  
The dryer and its individual shutoff 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 (3.5 kPa). 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).  
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IMPORTANT: Failure to isolate or disconnect dryer from supply as noted can cause irreparable  
damage to the gas valvesVOIDING THE WARRANTY.  
WARNING: FIRE OR EXPLOSION COULD RESULT DUETO FAILURE OF  
ISOLATINGOR DISCONNECTING THE GAS SUPPLYAS NOTED.  
1. Gas Supply  
The gas dryer installation must meet the American National Standard...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-M91 (liquid propane [L.P.] Gas) or LATEST EDITION, as well as local codes  
and ordinances and must be done by a qualified professional.  
NOTE: Undersized gas piping will result in ignition problems, slow drying, increased use of energy, and  
can create a safety hazard.  
The dryer must be connected to the type of heat or gas indicated on the dryer data label. 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.  
The input ratings shown on the dryer data label are for elevations of up to 2,000 feet (609.6 meters), unless  
elevation requirements of over 2,000 feet (609.6 meters) were specified at the time the dryer order was  
placed with the factory. The adjustment or conversion of dryers in the field for elevations over 2,000 feet  
(609.6 meters) is made by changing each burner orifice. If this conversion is necessary, contact the  
reseller who sold the dryer or contact the ADC factory.  
IMPORTANT: This gas dryeris not provided with an internal gas supply shut off and an external gas  
supply shut off must be provided.  
2. Technical Gas Data  
a. Gas Specifications  
TYPE OF GAS  
NATURAL  
LIQUID PROPANE  
8.7 mb  
14.92 - 29.9 mb  
26.1 mb  
27.4 mb  
Manifold Pressure*  
In-Line Pressure  
3.5 inches W.C.  
10.5 inches W.C.  
11.0 inches W.C.  
6.0 - 12.0 inches W.C.  
Shaded areas are stated in metric equivalents  
b. Gas Connections  
Inlet connection .......... 1” N.P.T.  
Inlet supply size .......... 1” Diameter Pipe (minimum)  
Btu/hr input ................. 270,000 (68,040 kcal/hr)  
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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 6.0 inches (14.92 mb) and a maximum of 12.0 inches  
(29.9 mb) water column (W.C.) pressure.  
2) Liquid Propane (L.P.) Gas  
Dryers made for use with L.P. gas have the gas valve’s internal pressure regulator blocked open so  
that the gas pressure must be regulated upstream of the dryer. The pressure measured at each  
gas valve pressure tap must be a consistent 10.5 inches (26.1 mb) water column. There is no  
regulator or regulation provided in an L.P. dryer. The water column pressure must be regulated at  
the source (L.P. tank) or an external regulator must be added to each dryer.  
Liquid  
Propane  
Conversion Kit  
Part Number  
TYPE OF GAS  
Natural  
Liquid Propane  
kcal/hr  
Rating  
Btu/hr  
Rating  
Qty. D.M.S.* Part No. Qty. D.M.S.* Part No.  
#23 140856 #41 #41 140811  
68,040  
270,000  
4
881016  
Shaded area is stated in metric equivalent  
* Drill Material Size (D.M.S.) equivalents are as follows:  
Natural Gas ........................#23 = 0.154” (3.9116 mm).  
L.P. Gas .............................#41 = 0.096” (2.4384 mm).  
3. Piping and Connections  
ALL components/materials must conformto 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 (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. 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 Btus being  
supplied.  
The dryer is provided with a 1” 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” diameter. For ease of servicing, the gas  
supply line of each dryer must have its own shutoff valve.  
The size of the main gas supply line (header) will vary depending on the distance this line travels from the  
gas meter or, in the case of L.P. gas, the supply tank, other gas operated appliances on the same supply line,  
etc. Specific information regarding supply line size should be determined by the gas supplier.  
NOTE: Undersized gas supply piping can create a low or inconsistent pressure, which will result in  
erratic operation of the burner ignition system.  
Consistent gas pressure is essential at ALL gas connections. It is recommended that a 1-inch (2.54 cm)  
pipe gas loop be installed in the supply line servicing a bank of dryers. An in-line pressure regulator must  
be installed in the gas supply line (header) if the (natural) gas pressure exceeds 12.0 inches (29.9 mb) of  
W.C. pressure.  
IMPORTANT: A water column pressure of 3.5 inches (8.7 mb) for natural gas and 10.5 inches  
(26.1 mb) for L.P. dryers is required at the gas valve pressure tap of each dryer for  
proper and safe operation.  
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A 1/8” N.P.T. plugged tap, accessible for a test gauge connection, must be installed in the main gas supply  
line immediately upstream of each dryer.  
IMPORTANT: Pipe joint compounds that resist the action of natural and liquid propane (L.P.) gases  
must be used.  
IMPORTANT: Test ALL connections for leaks by brushing on a soapy water solution (liquid  
detergent works well).  
WARNING: NEVER TEST FOR LEAKSWITH AFLAME!!!  
IMPORTANT: The dryer and its individual shutoff valvemust bedisconnected from the gas supply  
piping system during any pressure testing of that system at test pressures in excess of  
1/2 psig (3.5 kPa).  
IMPORTANT: This gas dryeris not provided with an internal gas supply shut off and an external gas  
supply shut off must be provided.  
NOTE: The dryermust 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).  
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H. STEAM INFORMATION  
It is your responsibility to have ALL steam plumbing connections made by a qualified professional to ensure 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 willVOID THEWARRANTY.  
NOTE: Thuis dryer 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 bar +/- 0.68 bar]).  
Refer to Steam Damper Air System Connections, Section H, item 3.  
IMPORTANT: STEAM pH LEVEL – The normal pH level for copper type steam coils must be  
maintained between a value of 8.5 to 9.5. For steel type steam coils, the pH level  
must be maintained between a value of 9.5 and 10.5. These limits are set to limit the  
acid attack of the steam coils.  
1. Steam Requirements, High Pressure  
a. Inlet ----- 1” supply line connection – qty. one (1) at top manifold.  
b. Return -- 1” return line connection – qty. one (1) at bottom manifold.  
Operating Steam Pressure  
861.84 kPa  
11 Bhp  
170.09 kg/hr  
Maximum  
125 psig*  
Heat Input (Normal Load)  
Consumption (Approximate)  
375 lbs/hr  
Shaded areas are stated in metric equivalents  
* The minimum operating pressure is 100 psig (689.47 kPa) for optimum results.  
2. Installation Instructions  
To insure that an adequate supply of steam is provided, be sure that the steam supply lines and steam return  
lines are sized and laid out as stipulated in this manual. Inadequate steam supply lines and steam return  
lines or improper steam plumbing will result in poor performance and can cause component failure. Clean,  
dry, and regulated steam must be provided to the dryer.  
IMPORTANT: Steam coil failure due to water hammer by wet steamVOIDS THE WARRANTY.  
a. The pressure of the condensate in the steam supply line will cause water hammer and subsequent heat  
exchanger (steam coil) failure. The steam supply line connection into the main supply line must be  
made with a minimum 12-inch (30.48 cm) riser. This will prevent any condensate from draining towards  
the dryer.  
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.  
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d. Shutoff valves for each dryer should be installed in the supply, return, and drip trap return lines. This  
will allow the dryer to be isolated from the supply and return mains if the dryer needs maintenance  
work.  
e. Install an inverted bucket steam trap and check valve for each unit at least 12-inches (30.48 cm) below  
steam coil as close to the coil as possible. A trap with a capacity of 1,000 lbs (454 kg) of condensate per  
hour at 125 psi (8.62 bar) is needed for each unit.  
f. A vacuum breaker should be installed for each unit in the piping. This will prevent the condensing  
steam from causing a vacuum inside the coil and possibly damaging the coil.  
g. The supply and return lines should be insulated. This will save energy and provide for the safety of the  
operator and maintenance personnel.  
h. Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly  
causing coil damage. ALL horizontal runs of steam supply piping should be pitched 1/4-inch  
(6.35 mm) for every 1 foot (0.30 meters) back towards the steam supply header causing any condensate  
in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.  
IMPORTANT: Flexible hoses and couplingsmust be used. Coil failure due to hard plumbing  
connections will VOIDTHE WARRANTY.  
3. Steam Damper Air System Connections  
This dryer 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 Pressure  
Air Supply  
5.51 bar  
4.82 bar  
6.21 bar  
Normal  
80 psi  
70 psi  
90 psi  
Minimum Supply  
Maximum Supply  
Shaded areas are stated in metric equivalents  
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b. Air Connection  
Air connection to system --- 1/8” N.P.T.  
c. No air regulation or filtration is provided with the dryer. External regulation and filtration of 80 psi  
(5.51 bar) must be provided. It is suggested that a regulator or filter gauge arrangement be added to  
the compressed air line just before the dryer connection. This is necessary to insure that correct and  
clean air pressure is achieved.  
4. Steam Damper System Operation  
The steam damper, as shown in the illustration below, allows the coil to stay constantly charged eliminating  
repeated expansion and contraction. When the damper is opened, the air immediately passes through the  
already hot coil, providing instant heat to start the drying process. When the damper is closed, ambient air  
is drawn directly into the basket (tumbler), allowing a rapid cool down.  
Diagram 1 shows the damper in the heating (open) mode, allowing heat into the basket (tumbler).  
Diagram 2 shows the damper in the cool down (closed) mode, pulling ambient air directly into the basket  
(tumbler) without passing through the coils.  
NOTE: With the dryer off or with no air supply, the damper is in the cool down mode as shown in  
Diagram 2.  
MAN0595  
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 bar), steam damper  
operation must be checked before the dryer is put into operation. Refer to page 28 for instructions to  
check steam damper operation. If damper air adjustment is necessary, locate flow control valve and make  
necessary adjustments as noted below.  
MAN5223  
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I. WATER INFORMATION  
BEFORE YOU START!  
CHECK LOCAL CODES AND PERMITS  
Call your local water company or the proper municipal authority for information regarding local codes.  
IMPORTANT: It is your responsibility to haveALL plumbing connections made by a qualified  
professional to ensure that the plumbing installation is adequate and conforms to local,  
state, and federal regulations or codes.  
IMPORTANT: It is the installation or owners responsibility to see that the necessary or required  
water, water pressure, pipe size, or connections are provided. Manufacturer assumes  
no responsibility if the fire suppression systemis not connected, installed, or  
maintained properly.  
INSTALLATION  
1. Requirements  
The fire suppression system must be supplied with a minimum water pipe size of 1/2” and be provided with  
40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) of pressure. For use of optional manual bypass, a second source  
with the same piping and pressure requirements is required.  
Flexible 1/2 feeds must be provided to avoid damage to electric water solenoid valve by vibration.  
IMPORTANT: Flexible supply line/coupling must be used. Solenoid valve failure due to hard  
plumbing connectionsWILLVOID WARRANTY.  
If the rear area of the dryer, or the water supply is located in an area where it will be exposed to  
cold/freezing temperatures, provisions must be made to protect these water lines from freezing.  
WARNING: If the water in the supply line or water solenoid valve freezes, the fire suppression system  
will be INOPERATIVE!!  
IMPORTANT: Appliance is to be connected to the water mains using a new hose-set and the old  
hose-sets should not be reused.  
2. Water Connections:  
The water connection is made to the 3/4”-11.5 NH hose adapter  
of the electric water solenoid valve, located at the rear upper  
midsection of the dryer (refer to the photo).  
The water solenoid valve has a 3/8” M.P.T. connection supplied with  
a 3/4”-11.5 NH hose adapter to provide the minimum  
1/2-inch supply (feed) line. Flexible supply line/coupling must be  
used in an effort to avoid damaging the electric water solenoid valve.  
NOTE: The 3/4”-11.5 NH is a standard hose coupling screw thread. Itis not to be confused with  
3/4” N.P.T. The sealing of an NH connection is made with a washer opposed to the mating  
threads of an N.P.T. assembly. The two (2) thread designs are not compatible.  
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IMPORTANT: Flexible supply line/couplingmust be used. Solenoid valve failure due to hard  
plumbing connectionsWILL VOID WARRANTY. It is recommended that a filter  
or strainer be installed in the water supply line.  
Typical water supply:  
OPTIONAL MANUAL BYPASS  
Provisions are made in the dryer’s fire suppression system for the installation of an optional manual bypass.  
Depending on the model dryer, the connections for the manual bypass are made at the “T” or “four way” fitting  
located in the outlet supply side of the water solenoid valve. The use and connections of this manual bypass are  
at the option or discretion of the owner.  
The water connection for the manual bypass is made to the “T” or “four way” fitting which has a 3/8” F.P.T. and  
a coupling must be used to provide the minimum 1/2” supply (feed) line.  
If the rear area of the dryer, or the water supply is located in an area where it will be exposed to cold/freezing  
temperatures, provisions must be made to protect these water lines from freezing.  
WARNING: If the water in the supply line or water solenoid valve freezes, the fire suppression system  
will be INOPERATIVE!!  
The manual ball cock shutoff valve must be located outside of the dryer at a distance from the dryer where it  
is easily accessible.  
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3. Electrical Requirements  
No independent external power source or supply connection is necessary. The 24 volt power to operate the  
fire suppression system is accomplished internally in the dryer (from the dryer controls).  
WARNING: Electrical powermust be provided to the dryer at ALL times. If the main electrical  
power supply to the dryer is disconnected, the fire suppression system is  
INOPERATIVE!!  
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. In the case  
of 208 VAC or 240 VAC, the supply voltage must match the electric service exactly.  
3. GAS MODELS - check to ensure that the dryer is connected to the type of heat/gas indicated on the dryer  
data label.  
4. GAS MODELS - the sail switch damper assembly was installed and adjusted at the factory prior to  
shipping. However, each sail switch adjustment must be checked to ensure that this important safety  
control is functioning. (Refer to page 29 for sail switch adjustment.)  
5. GAS MODELS - be sure that ALL gas shutoff valves are in the open position.  
6. Be sure ALL back panels (guards) and electric box cover have been replaced.  
7. Check ALL service doors to ensure that they are closed and secured in place.  
8. Be sure the lint drawer is closed and securely in place.  
NOTE: Lint drawer must be all the way in place to activate safety switch otherwise the dryerwill not  
start.  
9. Rotate the basket (tumbler/drum) by hand to be sure it moves freely.  
10. Check bolts, nuts, screws, terminals, and fittings for security.  
11. STEAM MODELS - check to insure air supply (80 psi [5.51 bar]) is supplied to dryer.  
12. STEAM MODELS - check to insure ALL steam shutoff valves are open.  
13. STEAM MODELS - check steam damper operation.  
14. Check basket (tumbler) bearing setscrews to insure they are ALL tight.  
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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.  
Open ALL shutoff valves (gas models only).  
2. Refer to the Operating Instructions for starting your particular model dryer.  
3. Gas Dryers  
a. When a gas dryer is first started (during initial start-up), it has a tendency not to ignite on the first ignition  
attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for the air  
to be purged from the lines.  
NOTE: During the purging period, check to be sure that ALL gas shutoff valves are open.  
NOTE: Gas dryers are equipped with a Direct Spark Ignition (DSI) system, which has internal  
diagnostics. If ignitionis not established within three (3) times, the heat circuit in the DSI  
module will lockout until it is manually reset. To reset the DSI system, open and close the main  
door and restart the dryer.  
b. A gas pressure test should be taken at the gas valve pressure tap of each dryer to ensure that the  
water column (W.C.) pressure is correct and consistent.  
NOTE: Water column pressure requirements (measured at the pressure tap of the gas valve body):  
Natural Gas ........................... 3.5 Inches (8.7 mb) water column.  
Liquid Propane (L.P.) Gas ...... 10.5 Inches (26.1 mb) water column.  
IMPORTANT: There is no regulator provided in an L.P. dryer. The water column pressure must be  
regulated at the source (L.P. tank), or an external regulator must be added to each  
dryer.  
4. Steam Dryers  
Check to insure that steam damper is functioning properly.  
The steam damper should not “slam” (open or closed) when it reaches the end of (piston) travel. Additionally,  
the steam damper should not bind and/or stop during travel. If either of these conditions occur, the flow  
control must be adjusted. (Refer to the bottom illustration on page 24 for air adjustment instructions.)  
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)  
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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. The dryer should be operated through one (1) complete cycle to ensure that no further adjustments are  
necessary and that ALL components are functioning properly.  
BASKET (TUMBLER) COATING  
The basket (tumbler) is treated with a protective coating. We suggest dampening old garments or cloth material  
with a solution of water and nonflammable mild detergent and tumbling them in the basket (tumbler) to remove  
this coating.  
7. Make a complete operational check of ALL operating controls.  
Microprocessor controller (computer) programs/selections:  
Each microprocessor controller (computer) has been preprogrammed by the factory with the most commonly  
used parameter (program) selections. If computer program changes are required, refer to the computer  
programming manual, which was shipped with the dryer.  
8. Check the electric service phase sequence. While the dryer is operating, check to see if the blower wheel  
(impellor/fan) is rotating in the proper direction. Looking from the front, the blower wheel (impellor/fan)  
should spin in the clockwise (CW) direction. If it is, the phasing is correct. If the phasing is incorrect,  
reverse two (2) of the three (3) leads at connections L1, L2, or L3 of the power supply to the dryer.  
IMPORTANT: If the blower wheel (impellor/fan) is rotating in the wrong direction, it will drastically  
reduce drying efficiency, and it can also cause premature component failure.  
9. Reversing basket (tumbler) dryers should never be operated with less than a 50 lb (22.68 kg) load (dry  
weight), since the load’s weight effects the basket (tumbler) coast time during a direction reversal command.  
It is important that the basket (tumbler) comes to a complete stop prior to starting in opposite direction.  
Microprocessor Models  
a. Spin and dwell (stop) times are not adjustable in the Automatic Mode and have been preprogrammed  
into the microprocessor controller (computer) for 120-seconds spin time and a 5-second dwell (stop)  
time.  
b. Spin and dwell (stop) times are adjustable in the Manual (timed) Mode.  
10. Check to insure that ALL setscrews (i.e., basket [tumbler] drive, idler, etc.) are tight.  
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K. PREOPERATIONAL INSTRUCTIONS  
To start the dryer ( microprocessor controller [computer] dryers):  
1. The light emitting diode (L.E.D.) display will read “REAdY.”  
2. Press the “E” on the keyboard (touch pad).  
3. The dryer will start and the L.E.D. display will flash “dRYING MANUAL CYCLE,” “dRYTEMP 180º F,”  
“COOL TEMP 80º F,” “30 REMAIN,” and “dRUM TEMP.”  
Refer to the User’s Manual for detailed operating instructions.  
L. SHUTDOWN INSTRUCTIONS  
If the dryer is to be shutdown (taken out of service) for a period of time, the following must be performed:  
1. Discontinue power to the dryer either at the external disconnect switch or the circuit breaker.  
2. Discontinue the gas or steam supply:  
a. GAS MODELS - discontinue the gas supply.  
1) SHUT OFF external gas supply shutoff valve.  
2) SHUT OFF internal gas supply shutoff valve located at the gas valve train area.  
b. STEAM MODELS - discontinue the steam supply.  
SHUT OFF external steam valves in the supply lines and the return lines.  
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SECTION IV  
SERVICE/PARTS INFORMATION  
A. SERVICE  
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.  
NOTE: When contacting theADC Service Department, be sure to give them the correct model  
number andserial number so that your inquiry is handled in an expeditious manner.  
B. PARTS  
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.  
NOTE: When ordering replacement parts from theADC reseller or theADC factory be sure to give  
them the correct model number and serial number so that your parts order can be  
processed in an expeditious manner.  
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SECTION V  
WARRANTYINFORMATION  
A. RETURNING WARRANTY CARDS  
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.  
If a warranty card did not come with your dryer, contact the ADC Warranty Department or the ADC Service  
Department at (508) 678-9000.  
IMPORTANT: A separate warranty card must be completed and returned for each individual dryer.  
NOTE: Be sure to include the installation date when returning the warranty card(s).  
B. WARRANTY  
For a copy of the ADC commercial warranty covering your particular dryer(s), contact the ADC reseller from  
whom you purchased the equipment and request a dryer warranty form. If the reseller cannot be contacted or  
is unknown, warranty information can be obtained from the factory by contacting the ADC Warranty Department  
at (508) 678-9000.  
NOTE: Whenever contacting theADC factory for warranty information, be sure to have the dryer’s  
model number andserial numberavailable so that your inquiry can be handled in an  
expeditious manner.  
C. RETURNING WARRANTY PARTS  
ALL dryer or parts warranty claims or inquires should be addressed to the ADC Warranty Parts Department.  
To expedite processing, the following procedures must be followed:  
1. No parts are to be returned to ADC without prior written authorization (“Return Material Authorization”  
[R.M.A.]) from the factory.  
NOTE: An R.M.A. is valid for only thirty (30) days from date of issue.  
The R.M.A. issued by the factory, as well as any other correspondence pertaining to the returned part(s),  
must be included inside the package with the failed merchandise.  
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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. 450064) are available at “no charge” from ADC upon request.  
3. The company returning the part(s) must clearly note the complete company name and address on the  
outside of the package.  
4. ALL returns must be properly packaged to insure that they are not damaged in transit. Damage claims  
are the responsibility of the shipper.  
IMPORTANT: No replacements, credits, or refundswill 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.  
6. Shipping charges are not the responsibility of ADC. ALL returns should be “prepaid” to the  
factory. Any “C.O.D.” or “COLLECT” returns will not be accepted.  
IMPORTANT: No replacements, credits, or refunds will be issued if the claim cannot be processed  
due to insufficient information. The party filing the claim will be notified in writing,  
either by “FAX” or “CERTIFIED MAIL - Return Receipt Requested,” as to the  
information necessary to process claim. If reply is not received by the ADC  
Warranty Department within thirty (30) days from the FAX/letter date, then no  
replacements, credits, or refundswill be issued, and the merchandisewill be  
discarded.  
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SECTIONVI  
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 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. If the guidelines in this section are met, an ADC  
dryer will provide many years of efficient, trouble free, and most importantly safe operation.  
WARNING: LINT FROM MOST FABRICS IS HIGHLY COMBUSTIBLE. THE  
ACCUMULATION OF LINT CAN CREATE A POTENTIAL FIRE HAZARD.  
WARNING: KEEP DRYER AREA CLEAR AND FREE FROM COMBUSTIBLE  
MATERIALS, GASOLINE, AND OTHER FLAMMABLE VAPORS AND  
LIQUIDS.  
NOTE: Suggested time intervals shown are for average usage which is considered six (6) to eight (8)  
operational (running) hours per day.  
IMPORTANT: Dryer produces combustible lint and must be exhausted to the outdoors. Every 6  
months, inspect the exhaust ducting and remove any lint buildup.  
Clean lint from lint drawer/screen every third or every fourth load. Inspect lint screen and replace if torn.  
NOTE: The frequency can be determined at each location.  
WEEKLY  
Clean lint accumulation from the lint chamber, thermostat, and microprocessor temperature sensor (sensor  
bracket) area.  
WARNING: TOAVOID THE HAZARD OF ELECTRICAL SHOCK, DISCONTINUE  
ELECTRICAL POWER SUPPLY TO THE DRYER.  
STEAM DRYERS  
Clean the steam coil fins. We 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. Clean any lint accumulation in and around both the blower and drive motor casing openings.  
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NOTE: To prevent damage, avoid cleaning and/or touching ignitor/flame-probe assembly.  
4. Remove lint accumulation from inside control box and at rear area behind control box.  
EVERY 6 MONTHS  
Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer’s internal  
exhaust ducting.  
WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCTWORK CAN  
CREATE A POTENTIAL FIRE HAZARD.  
WARNING: DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION  
AIR. CHECK BACK DRAFT DAMPERS IN THE EXHAUST DUCTWORK.  
INSPECT AND REMOVE ANY LINT ACCUMULATION, WHICH CAN CAUSE  
THE DAMPER TO BIND OR STICK.  
NOTE: A back draft damper that is sticking partially closed can result in slow drying and shutdown of  
heat circuit safety switches or thermostats.  
NOTE: When cleaning the dryer cabinets, avoid using harsh abrasives. A product intended for the  
cleaning of appliances is recommended.  
B. ADJUSTMENTS  
7 DAYS AFTER INSTALLATION AND EVERY 6 MONTHS THEREAFTER  
Inspect bolts, nuts, screws, setscrews, grounding connections, and nonpermanent gas connections (unions, shutoff  
valves, and orifices). 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. Complete  
operational check of ALL safety devices (door switch, lint drawer switch, sail switch, burner, and hi-limit  
thermostats).  
C. LUBRICATION  
The motor bearings and under normal/most conditions the basket (tumbler) and idler bearings are permanently  
lubricated. It is physically possible to relubricate 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. 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.  
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D. LINT DRAWER REMOVAL  
To remove the lint drawer from the dryer pull drawer out approximately halfway. Rotate and move lint drawer  
stop hinge (refer to the illustration below) downward and pull drawer out.  
IMPORTANT: After reinstalling the lint drawer back into the dryer, be sure to rotate/move the hinge  
back to the upward stop position.  
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SECTIONVII  
DATALABEL INFORMATION  
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.  
1. MODEL NUMBER – Describes the style of dryer and type of heat (gas, electric, or steam).  
2. SERIAL NUMBER – Allows the manufacturer to gather information on your particular dryer.  
3. MANUFACTURING CODE NUMBER – The number issued by the manufacturer, which describesALL possible options  
on your particular model.  
4. TYPE OF HEAT – This describes the type of heat for your particular dryer, gas (either natural gas or liquid propane [L.P.]  
gas), electric, or steam.  
5. HEAT INPUT (for GAS DRYERS) – This describes the heat input in British Thermal Units per Hour (Btu/hr).  
6. ORIFICE SIZE (for GAS DRYERS) – Gives the number drill size used.  
7. ELECTRIC SERVICE – This describes the electric service for your particular model.  
8. GAS MANIFOLD PRESSURE (for GAS DRYERS) – This describes the manifold pressure taken at the gas valve tap.  
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SECTIONVIII  
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. Verify that the applicable indicator lights on the back side of the microprocessor controller (computer)  
board are lit. (Refer to the illustration below.)  
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2. For Models with Direct Spark Ignition (DSI) Module (Type I)  
Theory of Operation:  
Start the drying cycle. When the gas burner ignites within the  
chosen trial for ignition time (6-seconds), the flame sensor detects  
gas burner flame and signals the DSI module to keep the gas  
valve open as long as there is a call for heat. The DSI module  
will “LOCKOUT” if the gas burner flame is not sensed at the  
end of the trial for ignition period. The trial for ignition period will  
be repeated for a total of three (3) retries/trials (the initial try and  
two [2] more retries/trials). If the flame is not sensed at the end  
of the third retry/trial (inter-purge period of 30-seconds) the DSI  
module will “LOCKOUT” (light emitting diode [L.E.D.] diagnostic  
indicator flashes).  
A steady L.E.D. indicator indicates normal operation.  
No L.E.D. indicator indicates a power or an internal failure has occurred.  
3. For Models with DSI Module (Type II)  
Theory of Operation:  
Start the drying cycle. When the gas burner ignites within the  
chosen trial for ignition time (8-seconds), the flame sensor detects  
gas burner flame and signals the DSI module to keep the gas  
valve open as long as there is a call for heat. The DSI module  
will “LOCK OUT” if the gas burner flame is not sensed at the  
end of the trial for ignition period. The trial for ignition period will  
be repeated for a total of three (3) retries/trials (the initial try and  
two [2] more retries/trials). If the flame is not sensed at the end  
of the third retry/trial (inter-purge period of 30-seconds), the DSI  
module will “LOCK OUT” (a red L.E.D. diagnostic indicator will  
flash).  
An unlit red L.E.D. diagnostic indicator indicates normal operation.  
A lit green L.E.D. diagnostic indicator indicates dryer controller is calling for heat and that ALL interlocks  
have been satisfied.  
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SECTION IX  
MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS  
A. PHASE 7  
This dryer was manufactured with a manual reset burner hi-limit thermostat, which is monitored by the Phase 7  
computer. If the burner hi-limit is open prior to the start of the drying cycle, the dryer will start momentarily and  
then shut down, the Phase 7 computer will display “BURNER HIGH LIMIT FAULT” with an audio indication.  
If the burner hi-limit opens during a drying cycle, the Phase 7 computer will also display the same error code  
described above, along with an audio indication. If the drum temperature is above 100° F (38° C), the dryer will  
continue to run with no heat for 3 minutes or until the drum temperature has dropped below 100° F (38° C). The  
clear/stop button on the Phase 7 keyboard (touch pad) must be pressed to clear the error condition. The open  
burner hi-limit must be reset “manually” prior to the start of the next cycle.  
B. DUAL TIMER  
This dryer was manufactured with a manual reset burner hi-limit thermostat. If the burner hi-limit 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 and will start or continue through the drying cycle with no heat. Manual reset hi-limit must be reset  
manually.  
This hi-temperature condition may be caused due to a restricted exhaust, poor airflow, or improper burner  
operation.  
The location of the burner hi-limit is on the right side of the burner box, looking at the burner from the back of the  
dryer.  
WARNING: Discontinue power to dryer before attempting to reset hi-limit.  
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