AD-1 2 0 ES II
(Ext en ded Side Pan els)
In st allat ion Man u al
WARNING: For your safety the
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.
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.
Ne pas entreposer ni utiliser d’essence ni
d’autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
appareil.
WHAT DO YOU 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.
* If you cannot reach your gas supplier, call the
fire department.
* Ne pas tenter d’allumer d’appareil.
* Ne touchez à aucun interrupteur. Ne pas
vous servir des téléphones se trouvant dans
le bâtiment où vous vous trouvez.
* Évacuez la pièce, le bâtiment ou la zone.
* Appelez immédiatement votre fournisseur de
gaz depuis un voisin. Suivez les instructions
du fournisseur.
* Si vous ne pouvez rejoindre le fournisseur
de gaz, appelez le service des incendies.
Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
L’installation et l’entretien doivent être assurés
par un installateur ou un service d’entretien
qualifié ou par le fournisseur de gaz.
For replacement parts, contact the reseller from which the dryer
was purchased or
American Dryer Corporation
88 Currant Road
Fall River MA 02720-4781
Telephone: (508) 678-9000 / Fax: (508) 678-9447
E-mail: [email protected]
ADC Part No. 113313
122900DX/calbert
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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.
«Attention: Lor des opérations d’entretien
des commandes étiqueter tous fils avant
de les déconnecter. Toute erreur de
câblage peut étre une source de danger et
de panne.»
“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 NOT BE ALLOWED TO PLAY 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, heat
safety circuits 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.
Dryers must not beinstalled or stored in an area where itwill be exposed to water or weather.
The wiring diagram for the dryer is located in the front electrical control box area.
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Ta ble of Con t en t s
SECTION I
IMPORTANT INFORMATION.......................................................................... 3
A. Receiving and Handling ............................................................................................................... 3
B. Safety Precautions ...................................................................................................................... 4
SECTION II
SPECIFICATIONS/COMPONENT IDENTIFICATION .................................. 6
A. Specifications ............................................................................................................................. 6
B. Component Identification ............................................................................................................ 8
SECTION III
INSTALLATION PROCEDURES .................................................................... 10
A. Location Requirements ............................................................................................................. 10
B. Unpacking/Setting Up ................................................................................................................11
C. Dryer Enclosure Requirements .................................................................................................. 14
D. Fresh Air Supply Requirements ................................................................................................. 15
E. Exhaust Requirements ............................................................................................................... 16
F. Electrical Information ................................................................................................................ 22
G. Gas Information........................................................................................................................ 28
H. Steam Information .................................................................................................................... 32
I. Preparation For Operation........................................................................................................ 36
J. Preoperational Tests ................................................................................................................. 37
K. Shut Down Instructions ............................................................................................................. 39
L. Operating Instructions ............................................................................................................... 40
SECTION IV
SERVICE/PARTS INFORMATION ................................................................. 41
A. Service ..................................................................................................................................... 41
B. Parts ........................................................................................................................................ 41
SECTION V
WARRANTY INFORMATION ......................................................................... 42
A. Returning Warranty Cards......................................................................................................... 42
B. Warranty .................................................................................................................................. 42
C. Returning Warranty Parts .......................................................................................................... 42
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SECTION VI
ROUTINE MAINTENANCE ............................................................................ 44
A. Cleaning ................................................................................................................................... 44
B. Adjustments ............................................................................................................................. 46
C. Lubrication ............................................................................................................................... 46
SECTION VII
TROUBLESHOOTING ..................................................................................... 47
Microprocessor Controller (Computer) Models ................................................................................... 47
Timer Models ................................................................................................................................... 53
SECTION VIII
DATA LABEL INFORMATION........................................................................ 58
A. Data Label ............................................................................................................................... 58
SECTION IX
REVERSING TIMER SPIN/DWELL ADJUSTMENTS.................................. 60
SECTION X
PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT
COMPONENTS ................................................................................................ 61
SECTION XI
BURNER AND BASKET (TUMBLER)/LINT CHAMBER MANUAL RESET
HI-LIMIT INSTRUCTIONS ............................................................................. 64
Gas Models Only .............................................................................................................................. 64
Electric or Steam Models Only .......................................................................................................... 65
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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. ALL dryers should be inspected upon receipt and before they are signed for.
2. If there is suspected damage or actual damage, the trucker's receipt should be so noted.
3. If the dryer is damaged beyond repair, it should be refused. Those dryers, which were not damaged in a
damaged shipment, should be accepted, but the number received and the number refused must be noted
on the receipt.
4. If you determine that the dryer was damaged after the trucker has left your location, you should call the
delivering carrier's freight terminal immediately and file a claim. The freight company considers this concealed
damage. This type of freight claim is very difficult to get paid and becomes extremely difficult when more
than a day or two passes after the freight was delivered. It is your responsibility to file freight claims.
Dryer/parts damaged in transit cannot be claimed under warranty.
5. Freight claims are the responsibility of the consignee, and ALL claims must be filed at the receiving end.
ADC assumes no responsibility for freight claims or damages.
6. If you need assistance in handling the situation, please contact theADC Traffic Manager at (508) 678-9000.
IMPORTANT: The dryer must be transported and handled in an upright position at ALL times.
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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. 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 ALLoccupants.
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.
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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 may be a fire hazard.
7. A program should be established for the inspection and cleaning of lint in the heating unit area, exhaust
ductwork, and inside 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 do so will VOID THE WARRANTY.
9. UNDER NO CIRCUMSTANCES should the dryer door switch, lint drawer switch, heat safety circuits
ever be disabled.
WARNING: PERSONAL INJURY OR FIRE COULD RESULT.
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 (8.61 bars) steam pressure. Excessive steam
pressure can damage steam coil and/or harm personnel.
13. Replace leaking flexible hoses or other steam fixtures immediately. DO NOT operate the dryer with
leaking flexible hoses. PERSONAL INJURY MAY RESULT.
14. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE
DRYER.
15. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less
than sixty-six percent (66%), 79 lbs (36 kg) of its rated capacity.
WARNING: 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.
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SECTION II
SPECIFICATIONS/COMPONENT IDENTIFICATION
A. SPECIFICATIONS
MAXIMUM CAPACITY (DRY WEIGHT)
120 lbs.
54.4 kg
BASKET (TUMBLER) DIAMETER
44-1/2”
42-1/2”
3/4 HP
113 cm
107.9 cm
0.560 kw
2.238 kw
79.7 cm
BASKET (TUMBLER) DEPTH
BASKET (TUMBLER) MOTOR
BLOWER MOTOR
3 HP
DOOR OPENING (DIAMETER)
BASKET (TUMBLER) VOLUME
DRYERS PER 20'/40' CONTAINER
DRYERS PER 45'/48' TRUCK
VOLTAGE AVAILABLE
APPROX. WEIGHT (UNCRATED)
APPROX. WEIGHT (CRATED)
HEAT INPUT
31-3/8”
38.2 cu. ft.
1.08 cu. m.
3/7
9/9
208-575v 3ø 3, 4w 50/60 Hz
1,349 lbs.
611.9 kg
675.4 kg
1,489 lbs.
375,000 btu/hr
2,150 cfm
94,500 kcal/hr
60.88 cmm
AIRFLOW
INLET SIZE
1”
VOLTAGE AVAILABLE
208-575v 3ø 3, 4w 50/60 Hz
OVEN SIZE
kw
72
btu/hr
kcal/hr
61,900
AIRFLOW
2,150 cfm 60.88 cmm
246,000
VOLTAGE AVAILABLE
APPROX. WEIGHT (UNCRATED)
APPROX. WEIGHT (CRATED)
HEAT INPUT
208-575v 3ø 3, 4w 50/60 Hz
1,650 lbs.
1,790 lbs.
748.4 kg
811.9 kg
13 Bhp
STEAM CONSUMPTION
AIRFLOW
450 lbs./hr
2,150 cfm
204 kg/hr
60.88 cmm
SUPPLY CONNECTION
RETURN CONNECTION
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
Shaded areas are stated in metric equivalents
1-1/4”
1-1/4”
1/8” F.P.T.
0.75 cfh
0.02 cmh
IMPORTANT: Steam dryers must be provided with a clean, dry, and regulated 80 PSI +/- 10 PSI
(5.51 bars +/- 0.68 bars) air supply.
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
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Specificat ion s
ADG-1 2 0 ES II
ADE-1 2 0 ES II
ADS-1 2 0 ES II
NOTE: Operating height of steam dryer is 89-inches (226.1 cm).
EXHAUST
DUCT DIA.
14"
DIM.
"A"
11-1/4"
DIM.
"B"
9-1/2"
GAS AND
ELECTRIC 35.5 cm 28.6 cm 24.1 cm
16" 9" 9"
40.6 cm 22.9 cm 22.9 cm
STEAM
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
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B. COMPONENT IDENTIFICATION
1. Dryer Front View
Illus. No.
Description
1
2
3
4
5
6
7
Microprocessor Control/Keyboard (touch pad) Panel Assembly (controls)
Control (top access) Door Assembly
Main Door Assembly
Lint Door Assembly
Lint Drawer
Wire Diagram (located behind control door)
Top Console (module) Assembly
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2. Dryer Rear View
Illus. No.
Description
1
2
3
4
5
6*
Basket (tumbler) Drive Motor Assembly
Blower Motor Mount Assembly
Impellor (fan/blower) Assembly
Idler Bearing Mount Assembly
Basket (tumbler) Bearing Mount Assembly
Electric Service Relay Box
7
Heating Unit
8
Data Label and Installation Label
*
Electric service connections are made in this box.
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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 conform to 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 dryer must 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. The dryer is for use in noncombustible locations.
4. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply
Requirements in Section D).
5. Clearance provisions must be made from combustible construction as noted in this manual (refer to
Dryer Enclosure Requirements in Section C).
6. 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).
7. Dryer must be exhausted to the outdoors as noted in this manual (refer to Exhaust Requirements
Section E).
8. 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.
9. The dryer must be installed with a proper exhaust duct connection to the outside.
10. The dryer must be installed with provisions for adequate combustion and make-up air supply.
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CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every 6
months, inspect the exhaust ducting and remove any lint build up.
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. Two (2) are
located at the rear base (remove the back panel for access) and two (2) are located in the bottom of the lint
chamber. To remove the two (2) lag bolts located in the lint chamber area, remove the lint drawer and the three
(3) Phillips head screws securing lint door in place.
1. Leveling Dryer
a. To level dryer, place 4-inch (10.16 cm) square metal shims (refer to illustration above) or other
suitable material under the base pads. It is suggested that the dryer be tilted slightly to the rear.
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2. 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) sets of nuts and washers (B) holding the console (module) to base.
3) Open the control door/control panel and disconnect the white 15-pin plug connector (C)
(illustration below) located in the base of the control box.
4) Disconnect white plug connector located outside back side of the control box (provides power to
heat circuit).
5) Lift the console (module) off the dryer base.
IMPORTANT: The dryer must be transported and handled in an upright position at ALL times.
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3. Exhaust Transition Piece (Gas and Electric Only!)
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 a FIRE HAZARD and will VOID
the manufacturer’s warranty.
012999JEV-GS/cj
P/N: 114092
a. 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:
1) Remove the exhaust transition piece from the
basket (tumbler) and place it on the exhaust
outlet.
2) Using the screws provided, secure the exhaust
transition piece to the dryer.
NOTE: It is recommendedthat this joint be taped
as well as ALL other duct joints to prevent
moisture and lint from escaping into the
building.
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C. DRYER ENCLOSURE REQUIREMENTS
Even though a 12-inch (30.48 cm) clearance is acceptable, it is recommended that the rear of the dryer be
positioned approximately 2 feet (0.60 meters) 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
(10.16 cm) and must not extend more than 4-inches (10.16 cm) to the rear of the dryer front. The bulkhead
facing must not be closed in ALL the way to the top of the dryer. A 2-inch (5.08 cm) clearance is required.
NOTE: Bulkhead facing should not be installed until after dryer is in place. Ceiling area must be
located a minimum of 12-inches (30.48 cm) above the top of the dryer.
IMPORTANT: Even though a minimum of only 12-inches (30.48 cm) is required, 18-inches
(45.72 cm) or more is suggested, for steam dryers and especially in cases where
sprinkler heads are over the dryers.
NOTE: When fire sprinkler systems are located above the dryers, a minimum of 18-inches (45.72 cm)
above the dryer console (module) is suggested. Dryers may be positioned sidewall to sidewall
however, 1 or 2-inches (2.54 cm or 5.08 cm) is suggested between dryers (or wall) for ease
of installation and maintenance. Allowances must be made for the opening and closing of the
control and lint doors.
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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 assure proper performance of each dryer. An
unrestricted source of air is necessary for each dryer. An airflow of 2,150 cfm (cubic feet per minute) - 60.88
cmm (cubic meters per minutes) - must be supplied to each gas, electric, and steam dryer. As a general rule, an
unrestricted air entrance from the outdoors (atmosphere) of a minimum of 3 square feet (0.28 square meters) is
required for each gas, electric, and steam dryer.
To compensate for the use of registers or louvers used over the openings, this make-up air area 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 six (6) gas dryers, two (2) openings measuring 3 feet by 3 feet (0.91
meters by 0.91 meters) 9 square feet (0.84 square meters) is acceptable.
Allowances must be made for remote or constricting passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
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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 will VOID THE WARRANTY.
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 and must be exhausted to the outdoors.
CAUTION: DRYER MUST BE EXHAUSTED TO THE OUTDOORS.
CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCTWORKCAN
CREATE A POTENTIAL FIREHAZARD.
NOTE: When a dryer is exhausted separately, it is recommendedthat a back draft damper be
installed.
NOTE: When dryers are exhausted into a multiple (common) exhaust line, each dryer must be
supplied with a back draft damper.
The exhaust 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 ductwork from the dryer to the outside exhaust outlet must not exceed20
feet (6.09 meters). In the case of multiple (common) dryer venting, the distance from the last dryer to the
outside exhaust outlet must not exceed20 feet (6.09 meters). The shape of the ductwork is not critical so
long as the minimum cross section area is provided. It is suggested that the use of 90º turns in ducting be
avoided; use 30º and/or 45º angles instead. The radius of the elbows should preferably be 1-1/2 times the
diameter of the duct. Excluding basket (tumbler)/dryer elbow connections or elbows used for outside
protection from the weather, no more than two (2) elbows should be used in the exhaust duct run. If more
than two (2) elbows are used, the cross section area of the ductwork must be increased in proportion to
number of elbows added.
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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 ducts to be added should overlap the duct to which it is
connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the building.
Additionally, inspection doors should be installed at strategic points in the exhaust ductwork for periodic
inspection and cleaning of lint from the ductwork.
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 ductwork 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 (i.e., roof or ground level).
IMPORTANT: Exhaust back pressure measured by a manometer at the dryer exhaust duct area must
be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column
(W.C.).
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger than the duct (all the way around).
The duct must be centered within this opening.
a. Outside Ductwork Protection
1) 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, 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.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust
ductwork.
17
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2. Single Dryer Venting
Where possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust duct should
be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns
as possible. It is suggested that the use of 90° turns in ducting be avoided; use 30° and/or 45° angles instead.
The shape of the exhaust ductwork is not critical so long as the minimum cross section area is provided.
IMPORTANT: Minimum duct size for a gas, electric, or steam dryer with a vertical run and not more
than three (3) elbows (including dryer connection and outside outlets) is 16-inches
(40.64 cm) for a round duct or 14-1/2” by 14-1/2” (36.83 cm by 36.83 cm) for a
square duct. DUCT SIZE MUST NOT BE REDUCED ANYWHERE
DOWNSTREAM OF DRYER.
IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust
duct area must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water
column (W.C.).
It is suggested that the ductwork from each dryer (minimum 14-inches [35.56 cm] for a gas dryer or electric
dryer and 16-inches [40.64 cm] for a steam dryer) not exceed 20 feet (6.09 meters) with no more than three
(3) elbows (including dryer connections and outside exhaust outlets). If the ductwork exceeds 20 feet (6.09
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 20 feet (6.09 meters).
The diameter of a round exhaust duct should be increased ten percent (10%) for each additional 15 feet
(4.57 meters). Each 14-inch (35.56 cm) 90° elbow is equivalent to 30 feet (9.14 meters) and each 16-inch
(40.64 cm) 90° elbow is equivalent to 36 feet (10.97 meters).
18
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IMPORTANT: For extended ductwork runs, the cross section area of the duct can only be increased
to an extent. Maximum proportional ductwork runs cannot exceed 20 feet (6.09
meters) more than the original limitations of 20 feet (6.09 meters) with two (2) elbows.
When the ductwork approaches the maximum limits as noted in this manual, a
professional heating, venting, and air conditioning (HVAC) firm should be consulted
for proper venting information.
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 opening must be 2-inches (5.08 cm) larger than the duct (ALL the way around).
The duct must be centered within this opening.
a. Outside Ductwork Protection
1) 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, 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 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 45° in the direction of airflow and should be spaced at least 48-3/8” (122.87
cm) apart. The main duct should be tapered, with the diameter increasing before each individual 14-inch
(35.56 cm) minimum for gas dryers or electric dryers, or 16-inch (40.64 cm) minimum for steam dryers
(duct is added).
IMPORTANT: The dryer is not provided with a back draft damper. When exhausted into a multiple
(common) exhaust line, a back draft damper must be installed at each dryer duct.
IMPORTANT: No more than four (4) dryers should be connected to one (1) main common duct.
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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 21 show the minimum cross section area for multiple dryer round or
square venting. These figures must be increased 10 square inches (64.51 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 20 feet [6.09 meters]) or has numerous elbows (more than two [2]) 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 20 feet (6.09 meters). The diameter of a round exhaust must be
increased ten percent (10%) for each additional 20 feet (6.09 meters). Each 90° 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
20 feet (6.09 meters) more than the original limitations of 20 feet (6.09 meters) with
two (2) elbows. When the ductwork approaches the maximum limits as noted in this
manual, a professional heating, venting, and air conditioning (HVAC) firm should be
consulted for proper venting information.
IMPORTANT: Exhaust back pressure measured by a manometer at each dryer exhaust duct area
must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column
(W.C.).
The duct should besmooth 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 opening must be 2-inches (5.08 cm) larger than the duct (all the way around).
The duct must be centered within this opening.
a. Outside Ductwork Protection
1) 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, 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 nearest obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust
ductwork.
20
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ADG-120ES II and ADE-120ES II (Gas and Electric) with 14” (35.56 cm) Diameter
2,150 cfm (60.88 cmm) Exhaust Connection at Common Duct
ADS-120ES II (Steam) with 16” (40.64 cm) Diameter
2,150 cfm (60.88 cmm) Exhaust Connection at Common Duct
21
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F. ELECTRICAL INFORMATION
1. Electrical Requirements
It is your responsibility to have ALL electrical connections made by a properly licensed and competent
electrician to assure that the electrical installation is adequate and conforms to local and state regulations or
codes. In the absence of such codes, ALL electrical connections, material, and workmanship must conform
to the applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-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 or component failure.
NOTE: Component failure due to improper installation will VOID THE 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, which could cause 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 will VOID THE WARRANTY.
NOTE: Wiring diagrams are affixed to the inside at the top front control door and to the rear upper
back guard/panel.
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2. Electrical Service Specifications
ADG-1 2 0 ES II Reversin g, 3 ø (GAS)
ADS-1 2 0 ES II Reversin g, 3 ø (STE AM)
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT: 208 VAC AND 240 VAC ARE NOT THE SAME. When ordering, specify exact voltage.
NOTES: A. When fuses are used they must be dual element, time delay, current limiting, class RK1 or RK5 ONLY.
Calculate/determine correct fuse valve, 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.
C. Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
FUSING
Dual Element
Time Delay
APPROX.
AMP DRAW
CIRCUIT
BREAKER
SERVICE
VOLTAGE
WIRE
SERVICE
MINIMUM
WIRE SIZE
PHASE
60 Hz
11.8
50 Hz
---
60 Hz 50 Hz 60 Hz 50 Hz
208
240
3ø
3ø
3ø
3ø
3ø
3ø
3/4
3
*
*
*
*
*
*
20
20
15
15
15
15
---
25
---
---
---
---
20
20
15
15
15
15
---
25
---
---
---
---
13.0
---
16.7
8.0
8.4
---
380-400
416
3/4
3/4
3/4
3
---
460/480
575
7.0
5.8
---
* AWG Stranded Type Wire ... size wire as per National Electrical Code or local codes.
(Motor lead type wire is recommended).
IMPORTANT: The dryer must be connected to the electric supply shown on the data label that is
affixed to the left side panel/wall area behind the control door. In the case of 208
VAC or 240 VAC, the supply voltage must match the electric service specifications of
the data label exactly.
WARNING: 208 VAC AND 240 VAC ARE NOT THE SAME. Any damage done to dryer
components due to improper voltage connections will automatically VOID THE
WARRANTY.
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
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ADE-1 2 0 II (7 2 Kw Elect ric)
Reversin g, 3 ø
ELECTRICAL 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 or National Electrical Codes to listed
appliance amp draw data.
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.
B.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
C.
APPROX.
AMP DRAW
OVEN SIZE SERVICE
WIRE
SERVICE
PHASE
(Kw)
VOLTAGE
60 Hz
212
186
---
50 Hz
---
72
72
72
72
72
72
72
72
208
240
3ø
3ø
3ø
3ø
3ø
3ø
3ø
3ø
3
3
3
4
3
4
3
3
190
117
117
108
108
---
380-400
380-400
416
---
---
416
---
460/480
575/600
97
78
---
IMPORTANT: The dryer must be connected to the electric supply shown on the data label that is
affixed to the left side panel/wall area behind the control door. In the case of 208
VAC or 240 VAC, the supply voltage must match the electric service specifications of
the data label exactly.
WARNING: 208 VAC AND 240 VAC ARE NOT THE SAME. Any damage done to dryer
components due to improper voltage connections will automatically VOID THE
WARRANTY.
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
24
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ADE-1 2 0 II (8 0 Kw Elect ric)
Reversin g, 3 ø
ELECTRICAL 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 or National Electrical Codes to listed
appliance amp draw data.
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.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
C.
APPROX.
AMP DRAW
OVEN SIZE SERVICE
WIRE
SERVICE
PHASE
(Kw)
VOLTAGE
60 Hz
234
205
---
50 Hz
80
80
80
80
80
80
80
80
208
240
3ø
3ø
3ø
3ø
3ø
3ø
3ø
3ø
3
3
3
4
3
4
3
3
---
209
130
130
120
120
---
380-400
380-400
416
---
---
416
---
460/480
575/600
107
86
---
NOTE: ADC has discontinued making 80 Kw dryers. This information is for dryers in the field.
IMPORTANT: The dryer must be connected to the electric supply shown on the data label that is
affixed to the left side panel/wall area behind the control door. In the case of 208
VAC or 240 VAC, the supply voltage must match the electric service specifications of
the data label exactly.
WARNING: 208 VAC AND 240 VAC ARE NOT THE SAME. Any damage done to dryer
components due to improper voltage connections will automatically VOID THE
WARRANTY.
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
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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. Providing local codes permit, power connections
to the dryer can be made by the use of a flexible underwriters laboratory listed cord/pigtail (wire size must
conform to rating of the dryer), or the dryer can be hard wired directly to the service breaker. In ALL
cases, a strain relief must be used where the wire(s) enter the dryer electrical service (relay) box.
a. Gas Model and Steam Model Dryers
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. To gain access into this service box, the service cover
(upper back guard) must be removed.
b. Electric Model Dryers
For electric model dryers made to operate at 208 VAC or 240 VAC, the electrical input connection is
made into the terminal block located at the upper rear of the dryer (refer to the illustration on page
27). For electric model dryers made to operate at 380 VAC, 416 VAC, 440 VAC, or 480 VAC, the
electrical input connection is made to the oven relay located at the upper rear of the dryer (refer to the
illustration on page 27). Input connection wiring must be sized properly to handle the dryer's current
draw. This information is printed on the dryer's data label, which is affixed to the left side panel/wall
area behind the control door.
NOTE: A CIRCUIT SERVICING EACH DRYER MUST BE PROVIDED.
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4. 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.
NOTE: A grounding connection (terminal lug) is provided in the dryer's electrical service/relay box at
the rear.
For added personal safety, when possible, it is suggested that a separate ground wire (sized per local codes)
be connected from the ground connection of the dryer to a grounded cold water pipe. DO NOT ground to
a gas or hot water pipe. The grounded cold water pipe must have metal to metal connections ALL the
way to 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. For proper
operation of the microprocessor controller (computer), an earth (zero) ground is
required.
NOTE: Grounding via metallic electrical conduit (pipe) is not recommended.
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G. GAS INFORMATION
It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas
plumbing installation is adequate and conforms to local and state regulations or codes. In the absence of such
codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requirements of
the National Fuel Gas Code ANSI Z223.1-LATEST EDITION, or in Canada, the Canadian Installation Codes
CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-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 valves 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 dryermust be isolated from
the gas supply piping system by closing its individual manual shutoff valve during any pressure test of the gas
supply system at test pressures equal to or less than 1/2 psig (3.5 kPa).
IMPORTANT: Failure to isolate or disconnect the dryer from supply as noted can cause irreparable
damage to the gas valve VOIDING THE WARRANTY.
WARNING: FIRE OR EXPLOSION COULD RESULT.
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 (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/gas indicated on the dryer data label affixed to the left side
panel/wall area behind the control door. If this information does not agree with the type of gas available,
DO NOT operate the 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 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.
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2. Technical Gas Data
a. Gas Specifications
TYPE OF GAS
NATURAL
LIQUID PROPANE
Manifold Pressure*
In-Line Pressure
3.5 inches W.C.
8.7 mb
10.5 inches W.C.
11.0 inches W.C.
26.1 mb
27.4 mb
6.0 - 12.0 inches W.C.
14.92 - 29.9 mb
Shaded areas are stated in metric equivalents
* Measured at outlet side of gas valve pressure tap when gas valve is on.
b. Gas Connections
Inlet connection -------------1-inch N.P.T.
Inlet supply size -------------1-inch N.P.T. (minimum)
Btu/hr input (per dryer)-----375,000 (94,500 kcal/hr)
1) Natural Gas
Regulation is controlled by the dryer's gas valve's internal regulator. Incoming supply pressuremust
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
TYP E OF GAS
(L.P.)
Conversion
Kit
Part Number
ADC
MODEL
NUMBER
BTU
Per Hour
Rating
Natural
Qty. D.M.S.*
#4
Liquid Propane (L.P.)
kcal/hr
Rating
Part
Number
Part
Number
Qty. D.M.S.*
ADG-120ES II 375,000 94,500
3
140832
3
#30
140819
880886
Shaded area is stated in metric equivalent
* Drill Material Size (D.M.S.) equivalents are as follows:
Natural Gas ......................... #4 = 0.2090” (5.3086 mm).
Liquid Propane Gas ............ #30 = 0.1285” (3.2639 mm).
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3. Piping/Connections
ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LATEST
EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane
[L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and
ordinances and must be done by a qualified professional. 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-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-inch N.P.T. 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 regulatormust be
installed in the gas supply line (header) if the (natural) gas pressure exceeds 12.0 inches (29.9 mb) of water
column pressure (W.C.).
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.
A 1/8-inch 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 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 GAS LEAKS WITH A FLAME!!!
ALL components/materials must conform to National Fuel Gas Code Specifications 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 (L.P. Gas) or LATEST EDITION.
It is important that gas pressure regulators meet applicable pressure requirements, and that gas meters be
rated for the total amount of appliance BTUs being supplied.
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IMPORTANT: 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).
NOTE: The dryer must be isolated from the gas supply piping system by closing its individual
manual shutoff valve during any pressure testing of the gas supply piping system at test
pressures equal to or less than 1/2 psig (3.5 kPa).
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H. STEAM INFORMATION
It is your responsibility to have ALL steam plumbing connections made by a qualified professional to assure that
the installation is adequate and conforms to local and state regulations or codes.
IMPORTANT: Failure to comply with the requirements stipulated in this manual can result in
component failure, which will VOID THE WARRANTY.
NOTE: The 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 bars +/- 0.69 bars]).
Refer to Steam Damper Air System Connections, Section H, item 4.
1. Steam Coil 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 to 10.5. These limits are
set to limit the acid attack of the steam coils.
IMPORTANT: Coil failure due to improper PH level will VOID THE WARRANTY.
2. Steam Requirements, High Pressure
a. Inlet ----1-1/4” supply line connection --- qty. one (1) at top manifold.
b. Return --1-1/4” return line connection --- qty. one (1) at bottom manifold.
Operat in g St eam Pressu re
Maximum
125 psig
862.84 kPa
Minimum
100 psig
689.47 kPa
Heat Input (Normal Load)
13 Bhp
Consumption (Approximate)
450 lbs/hr
204 kg/hr
Shaded areas are stated in metric equivalents
3. Installation Instructions
To insure that an adequate supply of steam is provided, be sure that the steam supply and steam return lines
are sized and laid out as stipulated in this manual. Inadequate steam supply and steam return lines are sized
and laid out as stipulated in this manual. Inadequate steam supply 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 steam will VOID THE WARRANTY.
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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 (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) rise along with a drip trap and
check valve. This will prevent any condensate from entering the steam coil.
c. Flexible hoses or couplings must be used. The dryer vibrates slightly when it runs and this will cause the
steam coil connections to crack if they are hard piped to the supply and return mains.
d. Shutoff valves for each dryer should be installed in the supply, return, and drip trap return lines. 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.
1) A trap with a capacity of 1,200 lbs (544 kg) of condensate per hour at 125 PSI (8.61 bars) is needed
for each unit.
f. A 3/4-inch (19.05 mm) 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 safety for 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 (0.31 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.
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4. Steam Damper Air System Connections
The 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 (refer to the bottom illustration on
page 35).
a. Air Requirements
COMPRESSED AIR SUPPLY
AIR PRESSURE
Normal
80 PSI
5.52 bars
4.83 bars
6.21 bars
Minimum Supply
70 PSI
90 PSI
Maximum Supply
Shaded areas are stated in metric equivalents
b. Air Connection
Air connection to system --- 1/8-inch N.P.T.
c. No air regulation or filtration is provided with the dryer. External regulation/filtration of 80 PSI (5.51
bars) must be provided. It is suggested that a regulator/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.
5. Steam Damper System Operation
The steam damper, as shown in the top illustrationon page 35, 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.
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6. Steam Damper Air Piston (Flow Control) Operation Adjustment System
Although the damper operation was tested and adjusted prior to shipping at 80 PSI (5.51 bars), steam damper
operation must be checked before the dryer is put into operation. Refer to page 34 for instructions to check
steam damper system operation. If damper air adjustment is necessary, locate flow control valve and make
necessary adjustments as noted below.
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I. PREPARATION FOR OPERATION
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 located on
the left side panel/wall area behind the control door as shown on page 9. In case of 208 VAC or 240 VAC,
the supply voltage must match the electric service exactly.
3. GAS MODELS - check to assure 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 assure that this important safety
control is functioning.
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 covers have been replaced.
7. Check ALL service doors to assure that they are closed and secured in place.
8. Be sure lint drawer is securely in place.
NOTE: LINT DRAWER MUST BE ALL THE WAY IN PLACE TO ACTIVATE SAFETY
SWITCH OTHERWISE THE DRYER WILL NOT START.
9. Rotate the basket (tumbler) 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 bars]) is on the 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.
2. Make sure the main door is closed and the lint drawer is securely in place.
3. Microprocessor controller (computer) system operational test to start dryer...
a. Light emitting diode (L.E.D.) display will read “FILL.”
b. Press the “E” (preprogrammed) cycle key on the keyboard (touch pad).
c. L.E.D. display will quickly read: “Ld30,” “Lc04,” and “F180” (unless special programs requested).
These codes mean that the dryer is in the timed mode and will operate with heat of 180º F (82º C) for 30
minutes drying time and have a 4 minute cool down period.
d. Dryer will now start and the L.E.D. display will read “Dr30” (dry mode for 30 minutes) and count down
in minutes.
NOTE: The dryer can be stopped at any time by opening main door or by pressing the “CLEAR/
STOP” key. To restart the dryer, press the “ENTER/START” key or preprogrammed cycle
key (i.e., “E”).
NOTE: Pressing keyboard (touch pad) key “A,” “B,” “C,” “D,” and “F,” will also start the dryer. The
six (6) preprogrammed drying cycles (“A” through “F”) have been stored in the
microprocessor controller’s (computer’s) memory. Refer to the computer programming
manual supplied with this dryer for these preprogrammed cycles.
4. Check to insure that the basket (tumbler) starts in the clockwise (CW) direction. Additionally, check the
direction of the blower motor impellor (fan) to insure that impellor (blower/fan) rotates in the clockwise
(CW) direction as viewed from the front. If it is, the phasing is correct. If the phasing is incorrect, reverse
two (2) of the leads at L1, L2, or L3 of the power supply connections made to the dryer.
IMPORTANT: Dryer blower motor (impellor/fan) as viewed from the front must turn in the clockwise
(CW) direction, otherwise dryer efficiency will be drastically reduced and premature
component failure can result.
5. Heat Circuit Operational Test
a. Gas Models
1) When the dryer is first started (during initial start-up), the burner has a tendency not to ignite on the
first attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for
this air to be purged.
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2) The dryer is equipped with a Direct Spark Ignition (DSI) system, which has internal diagnostics. If
ignition is not established after the first attempt, the heat circuit DSI module will “LOCKOUT” until
it is manually reset. To reset the DSI system, open and close main door and restart dryer (press the
“ENTER/START” key).
NOTE: During the purging period, check to be sure that ALL gas shutoff valves are open.
3) Once ignition is established, a gas pressure test should be taken at the gas valve pressure tap of
each dryer to assure that the water column (W.C.) pressure is correct and consistent.
NOTE: Water column pressure requirements (measured at the gas valve pressure tap)...
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.
b. Electric Models
1) Check the oven contactors to insure that the electric oven is cycling properly.
c. Steam Models
1) Check to insure that steam damper is functioning properly.
a) The steam damper should not “slam” (open/closed) when it reaches the end of (piston) travel.
Additionally, the steam damper should not bind or stop during travel. If either of these conditions
occur, the flow control must be adjusted. (Refer to the Cool Down Mode in top illustrationon
page 35 for air adjustment instructions.)
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 the dryer off and make necessary adjustments.
7. A reversing basket (tumbler) dryer should never be operated with less than a 60 lb (27 kg) load (dry
weight). The size of the load will affect the coast-down and dwell (stop) times. The basket (tumbler) must
come to a complete stop before starting in the opposite direction.
a. Microprocessor Controller (Computer) Dryer Models
1) Spin and stop times are not adjustable in the Automatic Mode and have been preprogrammed into
the microprocessor controller (computer) for a 120-second spin time and a 5-second dwell (stop)
time.
2) Spin and stop times are adjustable in the Manual (Timed) Mode.
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b. Dual Timer Dryer Models
1) Spin and stop times are adjustable at the reversing timer.
BASKET 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.
8. Each dryer should be operated through one (1) complete cycle to assure that no further adjustments are
necessary and that ALL components are functioning properly.
9. Make a complete operational check of ALL operating controls.
a. Microprocessor Controller (Computer) Programs and Selections...
1) 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.
b. Dual Timer Dryers Check...
1) Heating Timer
2) Cool Down Timer
3) Temperature Selection Switch
K. SHUT DOWN INSTRUCTIONS
If the dryer is to be shut down (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 in the gas valve burner area.
b. STEAM MODELS...discontinue the steam supply.
1) SHUT OFF external (location furnished) shutoff valve.
2) SHUT OFF internal steam valves in the supply lines and the return lines.
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L. OPERATING INSTRUCTIONS
NOTE: Before attempting to start the dryer make sure that the main door is closed and the lint drawer
is securely in place.
1. To Start The Dryer
a. Microprocessor Controller (Computer) Dryer Models
1) Display will read “FILL” (meaning no cycle in progress).
2) Press the letter on the keyboard (touch pad) corresponding to the cycle desired (i.e., “E”)...
a) The dryer will then start (rotate).
3) Light emitting diode (L.E.D.) display will now show the Cycle In Progress and Cycle Status (i.e.,
“dr30”) meaning that the dryer is in the drying cycle (dry mode for 30 minutes) and count down in
minutes.
NOTE: The dryer can be stopped at any time by opening main door or by pressing the “CLEAR/
STOP” key. To restart the dryer, press the “ENTER/START” key or preprogrammed cycle
key (i.e., “E”).
NOTE: Pressing keyboard (touch pad) key “A,” “B,” “C,” “D,” and “F” will also start the dryer. The
six (6) preprogrammed drying cycles (“A” through “F”) have been stored in the
microprocessor controller’s (computer’s) memory. Refer to the computer programming
manual supplied with this dryer for more specific operating information.
NOTE: Selection (setting) changes can be made at any time during the drying cycle by pressing the
“CLEAR/STOP” key twice. The L.E.D. display will return to “FILL” at which time a new
cycle selection can be made.
b. Dual Timer Dryer Models
1) Select drying time and cool down time desired...
a) Turn heat timer clockwise (CW) to desired time (i.e., 1 minute to 60 minutes).
b) Turn cool down timer clockwise (CW) to desired time (i.e., 0 minutes to 15 minutes).
2) Select drying temperature (“HI TEMP,” “LO TEMP,” or “PERM PRESS”).
3) Push “Push To Start” switch...
a) Dryer will now start.
4) To stop dryer, open the main door.
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SECTION IV
SERVICE/PARTS INFORMATION
A. SERVICE
1. Service must be performed by a qualified trained technician, service agency, or gas supplier. If service is
required, contact the reseller from whom the ADC equipment was purchased. If the reseller cannot be
contacted or is unknown, contact the ADC Service Department for a reseller in your area.
NOTE: When contacting the ADC Service Department, be sure to give them the correct model
numberand serial numberso that your inquiry is handled in an expeditious manner.
B. PARTS
1. Replacement parts should be purchased from the reseller from whom theADC 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 the ADC reseller or the ADC factory be sure to give
them the correct model numberand serial numberso that your parts order can be
processed in an expeditious manner.
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SECTION V
WARRANTY INFORMATION
A. RETURNING WARRANTY CARDS
1. Before any dryer leaves the ADC factory test area, a warranty card is placed on the back side of the main
door glass. These warranty cards are intended to serve the customer where we record the individual
installation date and warranty information to better serve you should you file a warranty claim.
a. If a warranty card did not come with your dryer, contact the ADC Warranty Department or 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 theADC Warranty Department
at (508) 678-9000.
NOTE: Whenever contacting the ADC factory for warranty information, be sure to have the dryer's
model numberand serial numberavailable so that your inquiry can be handled in an
expeditious manner.
C. RETURNING WARRANTY PARTS
ALL dryer or parts warranty claims or inquiries 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.
a. 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 numberand serial numberof 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 refunds will 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 a reply is not received by the ADC
Warranty Department within thirty (30) days from the FAX/letter date, then no
replacements, credits, or refunds will be issued, and the merchandise will be
discarded.
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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 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, inspecty the exhaust ducting and remove any lint build up.
CLEAN THE LINT DRAWER/SCREEN EVERY THIRD OR FOURTH LOAD.
NOTE: Frequency can best be determined at each location.
SUGGESTED CLEANING SCHEDULE
DAILY (beginning of each work shift)
1. Clean lint from screen.
2. Inspect lint screen and replace if torn.
WEEKLY
Clean lint accumulation from lint chamber, thermostat, and microprocessor temperature sensor (sensor bracket)
area.
WARNING: TO AVOID THE HAZARD OF ELECTRICAL SHOCK, DISCONTINUE
ELECTRICAL SUPPLY TO THE DRYER.
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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
Remove lint from around basket (tumbler), drive motors, and surrounding areas. Remove lint from gas valve
burner area with a dusting brush or vacuum cleaner attachment.
NOTE: To prevent damage, avoid cleaning and/or touching ignitor/flame-probe assembly.
Remove lint accumulation from inside control box and at the rear area behind control box.
6 MONTHS
Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer’s internal
exhaust ducting.
Impellor (fan/blower) belts and drive belts should be examined. Cracked and/or seriously frayed belts should
be replaced. Tighten belts when necessary.
WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCTWORK CAN
CREATE A POTENTIAL FIRE HAZARD.
WARNING: DO NOT OBSTRUCT THE FLOW OF COMBUSTION ANDVENTILATION
AIR. CHECK CUSTOMER FURNISHED BACK DRAFTED DAMPERS IN
EXHAUST DUCTWORK. INSPECT AND REMOVE ANY LINT
ACCUMULATION, WHICH CAN CAUSE DAMPER TO BIND OR STICK.
NOTE: A back draft damper that is sticking partially closed can result in slow drying and shutdown of
the heat circuit safety switches or thermostats.
NOTE: When cleaning dryer cabinet(s), avoid using harsh abrasives. A product intended for the
cleaning of appliances is recommended.
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B. ADJUSTMENTS
7 DAYS AFTER INSTALLATION AND EVERY 6 MONTHS THEREAFTER
Inspect bolts, nuts, screws (bearing setscrews), and nonpermanent gas connections (unions, shutoff 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. 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 #2or 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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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.
The experienced technician realizes, however, that a loose connection or broken/shorted wire may be at fault
where electrical components are concerned...and not necessarily the suspected component itself.
Electrical parts should always be checked for failure before being returned to the factory.
The information provided should not be misconstrued as a handbook for use by an untrained person making
repairs.
IMPORTANT: When replacing blown fuses, the replacement must be of the exact rating as the
fuse being replaced.
WARNING: ALL SERVICE ANDTROUBLESHOOTING SHOULD BE PERFORMED BY A
QUALIFIED PROFESSIONAL OR SERVICE AGENCY.
WARNING: WHILE MAKING REPAIRS, OBSERVE ALL SAFETY PRECAUTIONS
DISPLAYED ON THE DRYER OR SPECIFIED IN THIS MANUAL.
MICROPROCESSOR CONTROLLER (COMPUTER) MODELS
A. No light emitting diode (L.E.D.) display (microprocessor controller [computer] models ONLY)...
1. Service panel fuse blown or tripped breaker.
2. Blown control circuit L1 or L2 fuse.
3. Failed microprocessor controller (computer).
B. Drive motor is not operating (does not start)...
1. Failed drive motor contactor (relay).
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2. Failed arc suppressor (A.S.) board.
3. Failed drive motor.
4. Failed microprocessor controller (computer).
C. Drive motor (reversing) operates in one (1) 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. Drive motor operates okay for a few minutes, and then stops and will not restart...
1. Motor is overheating and tripping out on internal overload protector...
a. Motor air vents clogged with lint.
b. Low voltage to the motor.
c. Failed motor.
d. Basket (tumbler) is binding...check for obstruction.
e. Failed idler bearings or basket (tumbler) bearings.
E. Blower motor is not operating (does not start)...
1. Tripped or failed overload protector.
2. Failed blower motor contactor (relay).
3. Failed arc suppressor (A.S.) board.
4. Failed blower motor.
5. Failed microprocessor controller (computer).
F. Blower motor operates okay for a few minutes, and then stops and will not restart...
1. Motor is overheating and tripping out on internal overload protector...
a. Motor air vents clogged with lint.
b. Low voltage to the motor.
c. Failed motor.
d. Failed (out of balance) impellor (fan/blower).
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G. Both drive motor and blower motor are not operating (DO NOT start)...microprocessor
controller (computer) motor indicator dots are on...
1. Failed arc suppressor (A.S.) board.
2. Failed microprocessor controller (computer).
H. Both drive motor and blower motor run a few minutes and then stop...microprocessor controller
(computer) display continues to read time or percent of extraction and ALL indicator dots are
off.
1. Fault in main door switch circuit...
a. Failed main door switch.
b. Main door switch is out of adjustment.
c. Loose connection in door switch circuit.
2. Fault in lint drawer switch circuit...
a. Lint drawer switch is out of proper adjustment.
b. Loose connection in the lint drawer switch circuit.
I. Microprocessor controller (computer) display reads “dSFL”...
1. Fault in microprocessor heat sensing circuit...
a. Blown 1/8-amp (“dSFL”) fuse on microprocessor controller (computer).
b. Failed microprocessor temperature sensor.
c. Failed microprocessor controller (computer).
d. Broken wire or connection somewhere between the microprocessor controller (computer) and the
microprocessor temperature sensor.
J. Microprocessor controller (computer) display reads “door”...
1. Fault (open circuit) in main door or lint drawer switch circuit...
a. Lint drawer is not closed ALL the way.
b. Lint drawer switch is 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.
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f. Failed 24 VAC transformer.
K. Microprocessor controller (computer) will not accept any keyboard (touch pad) entries, i.e.,
light emitting diode (L.E.D.) display reads “FILL” and when keyboard (touch pad) entries are
selected, the L.E.D. display continues to read “FILL”...
1. Failed keyboard (touch pad) label assembly.
2. Failed microprocessor controller (computer).
L. Microprocessor controller (computer) will ONLYaccept certain keyboard (touch pad) entries...
1. Failed keyboard (touch pad) label assembly.
2. Failed microprocessor controller (computer).
M. Microprocessor controller (computer) locks up and L.E.D. display reads erroneous message(s)
or ONLY partial segments...
1. Transient power voltage (spikes)...disconnect power to dryer, wait 1 minute, and reestablish power to dryer.
If problem is still evident...
a. Failed microprocessor controller (computer).
b. Failed keyboard (touch pad) label assembly.
N. Dryer stops during a cycle and L.E.D. display returns to “FILL”...
1. Fault in microprocessor heat sensor circuit...
a. Loose connection in wires between temperature sensor and microprocessor controller (computer).
2. Loose connection somewhere in main power circuit to microprocessor controller (computer).
O. Gas heating unit is not operating (no heat)...no spark at burner area when dryer is first started,
and heat indicator dot is on...
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment or has failed.
b. Sail switch damper is not closing or is fluttering...
1) Lint screen is dirty.
2) Restriction in exhaust ductwork.
2. Fault in burner hi-limit circuit or thermostat.
3. Fault in lint chamber sensor bracket hi-heat (limit) protector thermostat.
4. Failed Direct Spark Ignition (DSI) module.
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5. Failed Direct Spark Ignition (DSI) ignitor/flame-probe assembly.
6. Failed microprocessor controller (computer).
P. No heat (for GAS MODEL ONLY)...ignitor sparks, burner goes on and off right away...
1. DSI ignitor/flame-probe is out of adjustment...reposition closer to the flame area.
2. Sail switch is fluttering...
a. Lint screen is dirty.
b. Restriction in exhaust ductwork.
3. Insufficient make-up air.
4. Failed ignitor/flame-probe assembly.
5. Failed DSI module.
6. Failed gas valve.
Q. No heat (for STEAM MODELS ONLY)...
1. Fault in lint chamber sensor bracket hi-heat (limit) protector thermostat.
2. Failed microprocessor controller (computer).
3. No (external) compressed air to steam damper (80 PSI [5.51 bars] is required).
4. Failed steam damper 24 VAC pneumatic solenoid switch.
5. Failed piston.
6. Steam damper stuck closed.
7. Airflow control valve restricting incoming compressed air.
R. No heat (for ELECTRIC MODELS ONLY)...
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment and/or faulty (failed).
b. Sail switch is not closing or fluttering...
1) Check impellor (fan/blower) motor and rotation direction.
2) Restriction in the location exhaust system.
2. Failed oven hi-limit.
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3. Failed lint compartment automatic (225º F [107.2 ° C]) safety thermostat.
4. Failed oven contactor (relay).
5. Failed microprocessor controller (computer).
S. Dryer operates but is taking too long to dry...
1. Exhaust ductwork run too long or is undersized...back pressure must be no less than 0 and cannot exceed
0.3 inches (0.74 mb) water column (W.C.).
2. Restriction in exhaust ductwork...
a. Exhaust back draft damper is sticking partially closed.
b. Restriction in exhaust ductwork...check ductwork from dryer ALL the way to the outdoors.
3. Low and/or inconsistent gas pressure (for GAS MODELS ONLY).
4. Insufficient make-up air.
5. Poor air/gas mixture at burner...yellow or poor flame pattern; adjust gas burner air adjustment shutters
(for GAS MODELS ONLY).
6. Lint screen is not being cleaned on a regular basis or often enough.
7. Extractors (washers) are not performing properly.
8. Sail switch is fluttering...restriction in exhaust ductwork (for GAS MODELS ONLY).
9. Failed microprocessor controller (computer)...temperature calibration is inaccurate.
10. Failed microprocessor temperature sensor calibration is inaccurate.
11. Failed burner hi-limit (for GAS MODELS ONLY).
12. Failed lint chamber hi-heat protector thermostat.
13. Steam damper system is not functioning properly (for STEAM MODELS ONLY)...
a. Steam damper sticking closed.
b. Leak in the pneumatic system.
c. Flow control incorrectly set.
T. Condensation on main door glass...
1. Too long, undersized, or improperly installed ductwork.
2. Dryer connected to common exhaust duct with another dryer and no back draft damper was installed in
customer furnished ductwork.
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3. Back draft damper is sticking in partially closed position.
U. Dryer is making scraping noise at basket (tumbler) area...
1. Check for object caught in basket (tumbler)/wrapper area.
2. Basket (tumbler) is out of proper alignment...
a. Check both vertical alignment and lateral alignment.
b. Check gap between front panel and basket (tumbler)...setscrews may have come loose, and basket
(tumbler) walked forward or backwards.
3. Loose basket (tumbler) tie rod.
4. Failed basket (tumbler) support.
V. Excessive noise and/or vibration...
1. Dryer is not leveled properly.
2. Impellor (fan) is out of balance...
a. Excessive lint build up on impellor (fan/blower).
b. Failed impellor (fan/blower).
3. Loose basket (tumbler) tie rod.
4. Basket (tumbler) is out of adjustment or adjustment bolts (hardware) are loose.
5. Failed basket (tumbler) support.
6. Loose motor mount.
7. Failed idler bearings or basket (tumbler) bearings.
8. V-belts too tight or too loose.
TIMER MODELS
A. Dryer will not start. Both drive motor and blower motor are not operating (indicator light is off)...
1. Dryer control circuit fuse is blown.
2. Open at location...
a. Service main fuse or circuit breaker.
3. Failed push to start relay.
4. Failed door switch and/or circuit.
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5. Failed heat timer.
6. Failed dual timer relay.
B. Drive motor (ONLY) is not operating (does not start)...
1. Failed drive motor contactor.
2. Failed reversing timer (for Reversing Models ONLY).
3. Failed drive motor.
C. Blower (impellor/fan) motor (ONLY) is not operating (does not start)...
1. Tripped or failed overload.
2. Failed blower (impellor/fan) motor contactor (relay).
3. Failed reversing timer.
4. Failed blower (impellor/fan) motor.
D. Both drive motor and blower (impellor/fan) motor are not operating (DONOT start) and indicator
light is on...
1. Fault with L1 termination at reversing timer (for Reversing Models ONLY).
E. Reversing drive motor operates in one (1) direction ONLY, stops and restarts in same direction
(for Reversing Models ONLY)...
1. Failed reversing contactor (relay).
2. Failed reversing timer.
F. Heating unit is not operating (no heat)...no voltage at heating unit (i.e., gas model Direct Spark
Ignition [DSI] module or steam model damper system pneumatic solenoid)...
GAS MODELS
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment and/or has failed.
b. Sail switch damper is not closing or is fluttering...
1) Check blower (impellor/fan) motor and rotation direction.
2) Restriction in exhaust ductwork.
3) Lint drawer/screen is dirty.
2. Failed burner hi-limit circuit.
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3. Failed lint compartment automatic (225º F [107.2° C]) safety thermostat circuit.
4. Failed Direct Spark Ignition (DSI) module (burner control).
5. Failed DSI ignitor/flame-probe assembly.
6. Failed heat selector switch.
ELECTRIC MODELS
1. Fault in sail switch circuit...
a. Sail switch is out of adjustment and/or has failed.
b. Sail switch is not closing or is fluttering...
1) Check blower (impellor/fan) motor and rotation direction.
2) Restriction in exhaust ductwork.
2. Failed oven hi-limit circuit.
3. Failed lint compartment automatic (225º F [107.2 ° C]) safety thermostat circuit.
4. Failed oven contactor (relay).
5. Failed heat selector switch.
STEAM MODELS
1. Steam damper binding and/or stuck.
2. No (external) compressed air to the steam damper...80 PSI (5.51 bars) is required.
3. Failed lint compartment (225º F [107.2° C]) safety thermostat circuit.
4. Failed steam damper 24 VAC pneumatic solenoid switch.
5. Airflow control valve restricting incoming compressed air.
6. Failed heat selector switch.
7. Failed steam damper piston.
G. Heat unit is not operating for ONLY one (1) temperature selection...
1. Failed thermostat corresponding to selection made.
2. Failed heat selector switch.
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H. Dryer operates but is taking too long to dry load...
1. Heating unit cycling on hi-limit thermostat (for GAS AND ELECTRIC MODELS ONLY).
2. Steam damper binding in partially open position (for STEAM MODELS ONLY).
3. Lint and/or dust accumulation on steam coil fins (for STEAM MODELS ONLY).
4. Housekeeping...
a. Lint screen and lint compartment are not being cleaned on a regular basis.
b. Lint accumulation in location exhaust system.
5. Insufficient make-up air.
6. Failed hi-limit thermostat (for GAS AND ELECTRIC MODELS ONLY).
7. Failed lint compartment (225º F [107.2° C]) safety thermostat circuit.
8. Extractors (washers) are not performing properly.
9. Low and/or inconsistent gas pressure (for GAS MODELS ONLY).
10. Gas supply may have low heating value (for GAS MODELS ONLY).
11. Sail switch is fluttering (for GAS AND ELECTRIC MODELS ONLY)...
a. Restriction in location exhaust system.
12. Fault in electric oven element circuit (for ELECTRIC MODELS ONLY)...
a. Failed element(s).
b. Failed oven contactor (relay).
13. Exceptionally cold/humid or low barometric pressure atmosphere.
14. Blower (impellor/fan) motor rotation direction is incorrect.
I. Dryer is cycling on hi-limit thermostat (for GAS AND ELECTRIC MODELS ONLY)...
1. Blower (impellor/fan) motor rotation direction is incorrect.
2. Insufficient make-up air.
3. Restriction in exhaust system...
a. Undersized exhaust ducting.
4. Lint screen needs cleaning.
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5. Failed hi-limit thermostat.
6. Failed oven contactor (relay) - for ELECTRIC MODELS ONLY.
J. Condensation on main door glass...
1. Too long, undersized, or improperly installed ductwork.
2. Dryer connected to common exhaust duct with another dryer, and no back draft damper was installed in
customer furnished ductwork.
3. Location furnished back draft damper in ductwork is sticking in partially closed position.
K. Dryer is making scraping noise at basket (tumbler) area...
1. Check for object caught in basket (tumbler)/wrapper area.
2. Basket (tumbler) is out of proper alignment...
a. Check both vertical alignment and lateral alignment.
b. Check gap between front panel and basket (tumbler)...setscrews may have come loose, and basket
(tumbler) walked forward or backwards.
3. Loose basket (tumbler) tie rod.
4. Failed basket (tumbler) support.
L. Excessive noise and/or vibration...
1. Dryer is not leveled properly.
2. Impellor (fan/blower) is out of balance...
a. Excessive lint build up on impellor (fan/blower).
b. Failed impellor (fan/blower).
3. Loose basket (tumbler) tie rod.
4. Basket (tumbler) is out of adjustment or adjustment bolts (hardware) are loose.
5. Failed basket (tumbler) support.
6. Loose motor mount.
7. Failed idler bearings or basket (tumbler) bearings.
8. V-belts too loose or too tight.
9. Failed fan (blower) shaft bearings or setscrew(s) may be loose.
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SECTION VIII
DATA LABEL INFORMATION
A. DATA LABEL
Contact American Dryer Corporation
When contacting American Dryer Corporation, certain information is required to insure proper service/parts
information from ADC. This information is on the data label located on the left side panel/wall area behind the
control door. When contacting ADC please have the model numberand serial numberavailable.
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THE DATA LABEL
1. MODEL NUMBER
The model number is an ADC number, which describes the size of the dryer and the
type of heat (gas, electric, or steam).
2. SERIAL NUMBER
The serial number allows ADC to gather information on your particular dryer.
3. MANUFACTURING CODE NUMBER
The manufacturing code number is a number issued by ADC, which describes ALL
possible options on your particular model.
4. TYPE OF HEAT
This describes the type of heat for your particular dryer: gas (either natural gas or
liquid propane [L.P.]) or steam.
5. HEAT INPUT (for GAS DRYERS)
This describes the heat input in British Thermal Units per Hour (BTUH).
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.
9. APPLICABLE APPROVAL SEAL(S)
I.E., Canadian Standards Association International.
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SECTION IX
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).
TIMING LEGEND
SPIN TIME
Adjustment Position Number
Time in Seconds*
1
2
3
4
5
30
60
90
120 150
DWELL (STOP) TIME
Adjustment Position Number
Time in Seconds*
1
5
2
3
4
5
6.3
7.6
8.9 10.2
* Values shown are +/- 1-second.
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SECTION X
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS
1. Microprocessor Controller (Computer) Board
a. Upon completing installation of the replacement microprocessor controller (computer) board, reestablish
power to the dryer.
b. Start the drying cycle.
c. Verify that the motor(s) and the heat indicator dots, in the microprocessor controller (computer) light
emitting diode (L.E.D.) display are on. (Refer to the illustration below.)
d. Verify that motor(s), heat, and door indicator lights on the back side of the microprocessor controller
(computer) board are lit. (Refer to the illustration below.)
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e. Open main door. The dryer must stop and ALL indicator lights on the back side of the microprocessor
controller (computer) board must go out. (Refer to the illustration on the previous page.)
f. Try to restart the dryer with the main door open.
g. The microprocessor controller (computer) board’s light emitting diode (L.E.D.) display must read “DOOR.”
h. Close the main door and restart the dryer.
i. Functional check of microprocessor controller (computer) board is complete.
2. For Models With Johnson Controls Direct Spark Ignition (DSI) Module (G760)
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” L.E.D. flashes).
A steady L.E.D. indicator indicates normal
operation.
No L.E.D. indicator indicates a power or an internal
failure has occurred.
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3. For Direct Spark Ignition (DSI) System Models Manufactured With ADC Module Part No. 880815
a. Upon completing installation of the
replacement DSI module, reestablish power
to the dryer.
b. Starting the drying cycle.
c. The ignition DSI module’s light emitting diode
(L.E.D.) indicator will light “red” for up to
approximately 1.5-seconds (prepurge time).
d. The module’s indicator light will then turn
“green.” The gas valve will be energized and
the ignitor probe will spark for approximately
8-seconds. The burner flame should now
be established.
e. With the burner flame on, remove the flame
sensor wire from the FS terminal of the DSI
module.
f. The burner flame must shut off and the ignition
module must lockout with the DSI module’s
indicator light “red.”
g. Stop the drying cycle, with the flame sensor wire still removed, restart the drying cycle.
h. The ignition module must proceed through the prepurge, with the indicator light “red,” the ignition trial
time of approximately 8-seconds, with the indicator light “green,” and then proceed to lockout with the
indicator light “red.”
i. Functional check of the DSI module is complete.
1) Replace the flame sensor wire from the FS terminal to the DSI module.
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SECTION XI
BURNER AND BASKET (TUMBLER)/LINT CHAMBER
MANUAL RESET HI-LIMIT INSTRUCTIONS
I M P O R T A N T
MANUAL RESET HI-LIMIT INSTRUCTIONS
FOR TIMER OR PHASE 5 WITHOUT HEAT FAULT
(GAS MODELS ONLY)
This dryer was manufactured with a burner and basket (tumbler)/lint chamber burner manual reset hi-limit
thermostat. If either burner manual reset hi-limit thermostat is open prior to the start of the drying cycle, or during
the cycle, the dryer will not recognize the open state of the burner hi-limit thermostat and will start or continue
through the drying cycle with no heat. The applicable manual reset hi-limit thermostat must be reset manually.
This hi-temperature condition may be caused due to a restricted exhaust, poor airflow, or improper burner
oven operation.
The location of the burner manual reset hi-limit switch is on the right side of the burner box.
IMPORTANT
This dryer is equippedwith a burnerhi-
limit and tumbler/lint chamber hi-limit
thermostat which must be reset manually.
WARNING: Discontinue power to dryer
before attempting to reset hi-limit.
ADC P/N:114093
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I M P O R T A N T
MANUAL RESET HI-LIMIT INSTRUCTIONS
FOR TIMER OR PHASE 5 WITHOUT HEAT FAULT
(ELECTRIC OR STEAM MODELS ONLY)
This dryer was manufactured with a burner and basket (tumbler)/lint chamber burner manual reset hi-limit
thermostat. If the manual reset thermostat is open prior to the start of the drying cycle, or during the cycle, the
dryer will not recognize the open state of the burner hi-limit thermostat and will start or continue through the
drying cycle with no heat. The applicable manual reset hi-limit must be reset manually.
This hi-temperature condition may be caused due to a restricted exhaust, poor airflow, or improper heating
unit operation.
The location of the burner manual reset hi-limit switch is in the lint chamber area.
WARNING: Discontinue electrical power to the dryer before attempting to reset hi-limit.
IMPORTANT
This dryer is equipped with a lint
chamber hi-limitthermostat which must be
reset manually.
WARNING: Discontinue power to dryer
before attempting to reset hi-limit.
ADC P/N:114501
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ADC 113313
1 - 02/07/01-25
4* 06/27/01-25
2 - 02/12/01-25
3 - 04/06/01-25
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