American Dryer ML-78III User Manual
ML-78III Installation Manual
Phase 7 / Dual Timer
WARNING: For your safety the information
in this manual must be followed to
minimize the risk of fire or explosion and
to prevent property damage, personal
injury or death.
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinity of this or any other appliance.
— WHA T T O DO IF YOU SMELL GAS:
●
Do not try to light any appliance.
●
Do not touch any electrical switch;
do not use any phone in your
building.
●
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 dep artment.
— Installation and service must be
performed by a qualified installer , service
agency or the gas supplier .
A VERTISSEMENT : 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.
—Ne pas entreposer ni utiliser d’essence
ni d’autres vapeurs ou liquides
inflammables à proximité de cet
appareil ou de tout autre appareil.
—QUE F AIRE SI VOUS SENTEZ UNE
ODEUR DE GAZ:
●
Ne pas tenter d’allumer d’appareils.
●
Ne touchez à aucun interrupteur . Ne
pas vous servir des téléphones se
trouvant dans le bâtiment.
●
Évacuez la pièce, le bâtiment ou la
zone.
●
Appelez immédiatement votre
fournisseur de gaz depuis un voisin.
Suivez les instructions du fournisseur .
●
Si vous ne pouvez rejoindre le
fournisseur de gaz, appelez le service
des incendies.
—L’installation et l’entretien doivent être
assurés par un installateur ou un
service d’entretien qualifié ou par le
fournisseur de gaz.
American Dryer Corporation
88 Currant Road
Fall River MA 02720-4781 USA
T elephone: +1 (508) 678-9000 / Fax: +1 (508) 678-9447
e-mail: techsupport@amdry.com
www.amdry.com
ADC Part No. 113240 -7
Retain This Manual In A Safe Place For Future Reference
American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product is
properly maintained, it will provide many years of efficient, trouble free, and most importantly , safe operation.
ONLY qualified technicians should service this equipment.
OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with
the dryer.
The following “FOR YOUR SAFETY” caution must be posted near the dryer in a prominent location.
FOR YOUR SAFETY
Do not store or use gasoline or
other flammable vapors and
liquids in the vicinity of this or
any other appliance.
W e have tried to make this manual as complete as possible and hope you will find it useful. ADC reserves the right to make
changes from time to time, without notice or obligation, in prices, specifications, colors, and material, and to change or
discontinue models. The illustrations included in this manual may not depict your particular dryer exactly.
POUR VOTRE SÉCURITÉ
Ne pas entreposer ni utiliser d’essence
ni d’autres vapeurs ou liquides
inflammables à proximité de cet
appareil ou de tout autre appareil.
Important
For your convenience, log the following information:
DATE OF PURCHASE_______________________________________________________ MODEL NO. __________________
RESELLER’S NAME _______________________________________________________________________________________
SERIAL NUMBER(S) _______________________________________________________________________________________
ML-78 PH7
__________________________________________________________________________________________________________
__________________________________________________________________________________________________________
Replacement parts can be obtained from your reseller or the ADC factory. When ordering replacement parts from the factory ,
you can F AX your order to ADC at +1 (508) 678-9447 or telephone your order directly to the ADC Parts Department at +1 (508)
678-9000. Please specify the dryer model number and serial number in addition to the description and part number, so that
your order is processed accurately and promptly.
“IMPORT ANT NOTE TO PURCHASER”
Information must be obtained from your local gas supplier on
the instructions to be followed if the user smells gas. These
instructions must be posted in a prominent location near the dryer .
!
▲ WARNING
Proposition 65
Use of this product could expose you to substances from fuel combustion
that contain chemicals known to the State of California to cause cancer,
birth defects and other reproductive harm.
IMPORTANT
YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPL Y AND THE GAS
SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE
MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING , INSTALLA TION, OR
TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health
Administration) STANDARDS.
“Caution: Label all wires prior to
disconnection when servicing
controls. W iring errors can cause
improper operation.”
«Attention: Au moment de l’entretien des commandes,
étiquetez tous les fils avant de les débrancher. Des
erreurs de câblage peuvent entraîner un fonctionnement
inadéquat et dangereux.»
CAUTION
DR YERS SHOULD NEVER BE LEFT UNA TTENDED WHILE IN OPERA TION.
WARNING
CHILDREN SHOULD NOT BE ALLOWED TO PLA Y ON OR NEAR THE DRYER(S).
CHILDREN SHOULD BE SUPERVISED IF NEAR DRYERS IN OPERA TION.
FOR YOUR SAFETY
DO NOT DR Y MOP HEADS IN THE DRYER.
DO NOT USE DR YER IN THE PRESENCE OF DR Y CLEANING FUMES.
WARNING
UNDER NO CIRCUMSTANCES should the dryer door switches, lint door switch, or
heat safety circuit ever be disabled.
WARNING
The dryer must never be operated with any of the back guards, outer tops, or service
panels removed. PERSONAL INJURY OR FIRE COULD RESUL T.
WARNING
DRYER MUST NEVER BE OPERA TED WITHOUT THE LINT FIL TER/SCREEN IN
PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED.
IMPORTANT
PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or
specified in the installation manual included with the dryer.
Dryer must not be installed or stored in an area where it
The wiring diagram for the dryer is located in the front electrical control box area.
will be exposed to water or weather.
IMPORTANT
Dryer must be installed in a location/environment, which the ambient temperature
remains between 40° F (4.44° C) and 130° F (54.44° C).
Table of Contents
SECTION I
SAFETY PRECAUTIONS ......................................................................................... 3
SECTION II
SPECIFICATIONS/COMPONENT IDENTIFICATION .....................................5
A. Specifications ............................................................................................................................. 5
B. Component Identification ............................................................................................................ 7
SECTION III
INSTALLATION PROCEDURES ........................................................................... 9
A. Location Requirements ............................................................................................................... 9
B. Unpacking/Setting Up ............................................................................................................... 10
C. Dryer Enclosure Requirements .................................................................................................. 11
D. Fresh Air Supply Requirements ................................................................................................. 12
E. Exhaust Requirements ............................................................................................................... 13
F. Electrical Information ................................................................................................................ 17
G . Gas Information ........................................................................................................................ 22
H. Preparation for Operation/Start-Up........................................................................................... 26
I. Preoperational T ests ................................................................................................................. 27
J. Preoperational Instructions........................................................................................................ 29
K. Shutdown Instructions............................................................................................................... 30
SECTION IV
SERVICE/PARTS INFORMATION ...................................................................... 3 1
A. Service ..................................................................................................................................... 31
B. Parts ........................................................................................................................................ 31
SECTION V
WARRANTY INFORMATION............................................................................... 3 2
A. Returning Warranty Cards......................................................................................................... 32
B. Warranty .................................................................................................................................. 32
C. Returning Warranty Parts .......................................................................................................... 32
SECTION VI
ROUTINE MAINTENANCE .................................................................................. 34
A. Cleaning ................................................................................................................................... 34
B. Adjustments ............................................................................................................................. 35
C. Lubrication ............................................................................................................................... 35
SECTION VII
DATA LABEL INFORMATION ............................................................................. 3 6
SECTION VIII
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS ................................................................ 38
SECTION IX
MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS ...............................40
A. Phase 7 .................................................................................................................................... 40
B. Dual T imer ................................................................................................................................40
SECTION X
FIRE SUPPRESSION SYSTEM (F.S.S.) ..............................................................41
SECTION I
SAFETY PRECAUTIONS
WARNING: For your safety, the information in this manual must be followed to minimize the risk of
fire or explosion or to prevent property damage, personal injury, or loss of life.
WARNING: The dryer must never be operated with any of the back guards, outer tops, or
service panels removed. PERSONAL INJURY OR FIRE COULD RESULT.
1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
2. Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the
user smells gas. The instructions should be posted in a prominent location.
3. WHAT TO DO IF YOU SMELL GAS:
a. DO NOT try to light any appliance.
b. DO NOT touch any electrical switch.
c. DO NOT use any phone in your building.
d. Clear the room, building, or area of ALL occupants.
e. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
f. If you cannot reach your gas supplier, call the fire department.
4. Installation and service must be performed by a qualified installer, service agency, or gas supplier.
5. Dryers 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.
3
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 burner area, exhaust ductwork,
and area around the back of the dryer. The frequency of inspection and cleaning can best be determined
from experience at each location.
WARNING: The collection of lint in the burner area and exhaust ductwork can create a potential fire
hazard.
8. For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the
National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the Canadian Electrical
Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.
NOTE: Failure to electrically ground the dryer properly will VOID THE WARRANTY.
9. UNDER NO CIRCUMSTANCES should the dryer door switches, lint door switch, or heat safety circuit
ever be disabled.
WARNING: PERSONAL INJURY OR FIRE COULD RESULT should the dryer door switches,
lint door switch, or heat safety circuit ever be disabled.
10. This dryer is not to be used in the presence of dry cleaning solvents or fumes.
11. Remove articles from the dryer as soon as the drying cycle has been completed.
WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can
create a fire hazard.
12. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE
DRYER.
13. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less
than sixty-six percent (66%), 50 lb (22.7 kg) of its rated capacity.
WARNING: YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPLY
AND THE GAS 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.
IMPORTANT: Dryer must be installed in a location/environment, which the ambient
temperature remains between 40° F (4.44° C) and 130° F (54.44° C).
4
SPECIFICATIONS/COMPONENT IDENTIFICATION
A. SPECIFICATIONS
MAXIMUM CAPACITY (DRY WEIGHT) 75 lb 34.02 kg
TUMBLER DIAMETER 44 -1 /2 ”
TUMBLER DEPTH 24-7/8”
TUMBLER VOLUME 22.40 cu ft
TUMB LER/DRIVE MOTOR 1 hp *
BLOWER/FAN MOTOR N / A
DOOR OPENING (DIAMETER) 31-3 / 8 ”
DOOR S ILL HEIGHT 31 ”
WATER CONNECTION 3/4 ”- 11 .5 NH
DRYERS PER 20’ /40 ’ C ONTAINER 1 0 / 2 0
DRYERS PER 48’/53’ TRUCK 2 5 / 2 7
VOLTAGE AVAILABLE 115-460v 1 ,3ø 3,4w 5 0/60 Hz
APPROXIMATE NET WEIGHT 888 lb
APPROXIMATE SHIPPING WEIGHT 938 lb
AIRFLOW 60 Hz 1,200 cfm
HEAT INPUT 204,000 Btu/hr
EXHAUST CONNECTION (DIAMETER) 10 ”
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNECTION 3/4” F.N.P.T.
VOLTAGE AVAILABLE 208-460v 3 ø 3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 888 lb
APPROXIMATE SHIPPING WEIGHT 938 lb
AIRFLOW 60 Hz 1,200 cfm
EXHAUST CONNECTION (DIAMETER) 10 ”
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
Electric GasSteam
kW Btu/hr
24 81,900
36 122,900
VOLTAGE AVAILABLE N / A
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WEIGHT
AIRFLOW
STEAM CONSUMPTION
OPERATING STEAM PRESSURE
EXHAUST CONNECTION (DIAMETER)
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
BOILER HORSEPOWER (NORMAL LOAD)
SUPPLY CONNECTION
RETURN CONNE CTION
Shaded areas are stated in metric equivalents 5/4/05
* For single-phase (1ø) dryers use 1 motor: 1 hp drive/fan. For 3-phase (3ø) non-reversing dryers use
1 motor: 1 hp drive/fan and for 3-phase (3ø) reversing dryers use 2 motors: 1 hp fan and 1/2 hp drive.
SECTION II
50 Hz 1,000 cfm
50 Hz 1,000 cfm
OVEN SIZE
kcal/hr
20,638
30,970
3/4” B.S.P.T.
3/4” B.S.P.T.
113 .03 c m
63.20 cm
634.30 L
0.75 kW
79.71 cm
78.74 cm
(North America)
(Outside North Ameri ca)
402.79 kg
425.47 kg
33.98 cmm
28.32 cmm
51,407 kcal/hr
25.40 cm
(CE and Australia Only)
402.79 kg
425.47 kg
33.98 cmm
28.32 cmm
25.40 cm
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
5
Specifications
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
6
B. COMPONENT IDENTIFICATION
1. Dryer Front View
Illus. No. Description
1 Controls
2 Control (top access) Door Assembly
3 Main Door Assembly
4 Lint Compartment Area (lint screen located behind door)
5 Data Label and Installation Label
7
2. Dryer Rear View
Illus. No. Description
1 Heating Unit
2 Outer Top Area
3* Electric Service Relay Box
4 Basket (tumbler) Bearing Mount Assembly
5 Idler Bearing Mount Assembly
6 Basket (tumbler) (drive) Motor Assembly (for reversing models only)
7 Blower Motor Assembly
8 Dryer Exhaust
* Electrical service connections are made in this box.
8
SECTION III
INSTALLATION PROCEDURES
Installation should be performed by competent technicians in accordance with local and state codes. In the
absence of these codes, the installation must conform to applicable American National Standards: ANSI Z223.1LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical
Code) or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91
(Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] 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-B149.1M91 (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. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply
Requirements in Section D).
4. Clearance provisions must be made from noncombustible construction as noted in this manual (refer to
Dryer Enclosure Requirements in Section C).
5. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual
(refer to Dryer Enclosure Requirements in Section C).
6. Dryer must be exhausted to the outdoors as noted in this manual (refer to Exhaust Requirements in
Section E).
7. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual
(refer to Exhaust Requirements in Section E).
IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary.
8. The dryer must be installed with a proper exhaust duct connection to the outside.
9. The dryer must be installed with adequate clearance for air openings into the combustion chamber.
9
CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every 6
months, inspect the exhaust ducting and remove any lint buildup.
IMPORTANT: Dryer must be installed in a location/environment, which the ambient
temperature remains between 40° F (4.44° C) and 130° F (54.44° C).
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 unskid
the dryer, locate and remove the four (4) bolts securing the base of the dryer to the wooden skid. Two (2) are
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) bolts located in the lint chamber area, remove the lint door.
To increase bearing life and improve efficiency, the dryer should be tilted slightly to the rear.
The lint coop is supported during shipping by a bracket. REMOVE THIS BRACKET BEFORE STARTING
THE DRYER.
If more headroom is needed when moving dryer into position, the top console (module) may be removed.
To Remove Top Console (Module)
1. Disconnect the ground wire (A) at the
rear upper left hand corner of dryer.
2. Remove the four (4) sets of nuts and
washers (B) holding the console (module)
to base.
3. Open the control door/control panel and
disconnect the white 9-pin plug connector
(C) located in the base of the control box.
4. Disconnect motor harness(es) (D)
located in rear electrical box.
5. Disconnect 2-pin connector (E) located
in rear electrical box. (On some dryers,
this is optional.)
6. Lift the console (module) off the dryer
base.
10
C. DRYER ENCLOSURE REQUIREMENTS
Bulkheads and partitions must be made of noncombustible materials and must be located a minimum of
12-inches (30.48 cm), 18-inches (45.72 cm) or more is recommended for ease of installation, maintenance, and
service above the dryer outer top, except along the front of the dryer, which may be partially closed in if desired.
The clearance between the bulkhead header and the dryer must be a minimum of 4-inches (10.16 cm) and must
not extend more than 4-inches (10.16 cm) to the rear of the front. The bulkhead facing must not be closed in
ALL the way to the top of the dryer. A 1-inch (2.54 cm) clearance is required.
NOTE: Allowances must be made for opening the control door.
Dryers may be positioned sidewall to sidewall. However, a 1/16” (1.587 mm) minimum allowance must be
made for the opening and closing of the control door and the lint door. It is suggested that the dryer be positioned
about 2 feet (0.61 meters) away from the nearest obstruction for ease of installation, maintenance, and service
(to be measured from the back guard). Refer to the illustration above for details.
NOTE: Air considerations are important for proper and efficient operation.
IMPORTANT: Even though a minimum of only 12-inches (30.48 cm) is required behind the dryer,
18-inches (45.72 cm) or more is suggested (especially when vertical venting is used).
The additional clearance is advantageous for ease of installation and service.
IMPORTANT: When fire sprinkler systems are located above the dryers, a minimum of 18-inches
(45.72 cm) above the dryer console (module) is required. Dryers may be positioned
sidewall to sidewall, however, a 1/16” (1.587 mm) minimum allowance is required
between dryers (or wall) for ease of installation and maintenance. Allowances must
be made for the opening and closing of the control door and the lint door.
11
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
sail switch “fluttering” problems may result, as well as premature motor failure from overheating.
Air supply (make-up air) must be given careful consideration to ensure proper performance of each dryer. An
unrestricted source of air is necessary for each dryer. An airflow of 1,200 cfm (cubic feet per minute)
(33.98 cmm [cubic meters per minute]) must be supplied to each gas dryer. As a general rule, an unrestricted
air entrance from the outdoors (atmosphere) of a minimum of 1-1/2 square feet (0.41 square meters) is required
for each dryer. The dryer must be installed with provisions for adequate combustion and make-up air supply.
will be adversely affected. Ignition problems and
To compensate for the use of registers or louvers used over the openings, this make-up air must be increased by
approximately thirty-three percent (33%). Make-up air openings should not be located in an area directly near
where exhaust vents exit the building.
It
is not necessary to have separate make-up air openings for each dryer. Common make-up air openings are
acceptable. However, they must be set up in such a manner that the make-up air is distributed equally to ALL
the dryers.
EXAMPLE: For a bank of four (4) dryers, two (2) unrestricted openings measuring 2 feet by 1-1/2 feet
(0.60 meters by 0.45 meters) (6 square feet [0.56 square meters]) are acceptable.
Allowances must be made for remote or constricting passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes.
Make-up air that is contaminated by dry cleaning solvent fumes will result in
irreparable damage to the motors and other dryer components.
NOTE: Component failure due to dry cleaning solvent fumes will VOID THE WARRANTY.
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