Installation manual | American Dryer Corp. AD-81 III Clothes Dryer User Manual

AD-81 III Installation Manual
Gas/Steam Models/Phase 7
WARNING: For your safety the information in
this manual must be followed to minimize the
risk of fire or explosion or to prevent property
damage, personal injury or death.
AVERTISSEMENT: Assurez-vous de bien
suivre les instructions données dans cette notice
pour réduire au minimum le risque d’incendie
ou d’explosion ou pour éviter tout dommage
matériel, toute blessure ou la mort.
— Do not store or use gasoline or other flammable
vapors 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 à
proximité de cet appareil ou de tout autre
appareil.
— WHAT TO 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 department.
— Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.
— QUE FAIRE 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
Telephone: (508) 678-9000 / Fax: (508) 678-9447
E-mail: techsupport@amdry.com
www.amdry.com
111902JEV/mcronan
ADC Part No. 113159
Retain This Manual In A Safe Place For Future Reference
American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product is
properly maintained, it will provide many years of safe, efficient, and trouble free operation.
ONLY qualified technicians should service this equipment.
OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with
the dryer.
The following “FOR YOUR SAFETY” caution must be posted near the dryer in a prominent location.
FOR YOUR SAFETY
POUR VOTRE SÉCURITÉ
Do not store or use gasoline or
other flammable vapors 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 à proximité de cet
appareil ou de tout autre appareil.
We 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.
Important
For your convenience, log the following information:
AD-81 III
DATE OF PURCHASE _______________________________ MODEL NO. __________________________________________
RESELLER’S NAME _______________________________________________________________________________________
Serial Number(s)
________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
Replacement parts can be obtained from your reseller or the ADC factory. When ordering replacement parts from the factory,
you can FAX your order to ADC at (508) 678-9447 or telephone your order directly to the ADC Parts Department at (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.
“IMPORTANT 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.
IMPORTANT
YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPLY AND THE GAS
SUPPLY OR THE STEAM SUPPLY BEFORE ANY COVERS OR GUARDS ARE
REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING,
ADJUSTING, INSTALLATION, OR TESTING OF ANY EQUIPMENT PER OSHA
(Occupational Safety and Health Administration) STANDARDS.
“Caution: Label all wires prior to
disconnection when servicing controls. Wiring
errors can cause improper operation.”
«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
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, or
the heat circuit safety devices 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 RESULT.
WARNING
DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN
PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED.
IMPORTANT
PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or
specified in the installation manual included with the dryer.
Dryer must not be installed or stored in an area where it will be exposed to water or weather.
The wiring diagram for the dryer is located in the front electrical control box area.
IMPORTANT
Dryer must be installed in a location/environment, which the ambient temperature
remains between 40° F (4.44° C) and 130° F (54.44° C).
Table of Contents
SECTION I
SAFETY PRECAUTIONS .................................................................................................... 2
SECTION II
SPECIFICATIONS/COMPONENT IDENTIFICATION ..................................................... 4
A. Specifications .................................................................................................................................... 4
B. Component Identification .................................................................................................................. 6
SECTION III
INSTALLATION PROCEDURES ........................................................................................ 8
A.
B.
C.
D.
E.
F.
G.
H.
I.
I.
J.
K.
L.
Location Requirements ..................................................................................................................... 8
Unpacking/Setting Up ....................................................................................................................... 9
Dryer Enclosure Requirements ....................................................................................................... 10
Fresh Air Supply Requirements ....................................................................................................... 10
Exhaust Requirements .....................................................................................................................11
Electrical Information...................................................................................................................... 16
Gas Information .............................................................................................................................. 18
Steam Information .......................................................................................................................... 22
Water Information .......................................................................................................................... 25
Preparation For Operation/Start-Up ................................................................................................ 27
Preoperational Tests ....................................................................................................................... 28
Preoperational Instructions .............................................................................................................. 30
Shutdown Instructions ..................................................................................................................... 30
SECTION IV
SERVICE/PARTS INFORMATION ................................................................................... 31
A. Service ........................................................................................................................................... 31
B. Parts ............................................................................................................................................... 31
SECTION V
WARRANTY INFORMATION ........................................................................................... 32
A. Returning Warranty Cards .............................................................................................................. 32
B. Warranty ........................................................................................................................................ 32
C. Returning Warranty Parts ............................................................................................................... 32
SECTION VI
ROUTINE MAINTENANCE .............................................................................................. 34
A.
B.
C.
D.
Cleaning ......................................................................................................................................... 34
Adjustments .................................................................................................................................... 35
Lubrication ..................................................................................................................................... 35
Lint Drawer Removal ..................................................................................................................... 36
SECTION VII
DATA LABEL INFORMATION ......................................................................................... 37
SECTION VIII
PROCEDURE FOR FUNCTIONAL CHECK OF
REPLACEMENT COMPONENTS ................................................................................... 38
SECTION IX
MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS ................................................ 40
A. Phase 7 ............................................................................................................................... 40
B. Dual Timer ........................................................................................................................... 40
SECTION I
SAFETY PRECAUTIONS
WARNING: For your safety, the information in this manual must be followed to minimize the risk of
fire or explosion or to prevent property damage, personal injury, or loss of life.
WARNING: The dryer must never be operated with any of the back guards, outer tops, or
service panels removed. PERSONAL INJURY OR FIRE COULD RESULT.
1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
2. Purchaser/user should consult the local gas supplier for proper instructions to be followed in the event the
user smells gas. The instructions should be posted in a prominent location.
3. WHAT TO DO IF YOU SMELL GAS:
a. DO NOT try to light any appliance.
b. DO NOT touch any electrical switch.
c. DO NOT use any phone in your building.
d. Clear the room, building, or area of ALL occupants.
e. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
f. If you cannot reach your gas supplier, call the fire department.
4. Installation and service must be performed by a qualified installer, service agency, or gas supplier.
5. Dryer(s) must be exhausted to the outdoors.
6. Although ADC produces a very versatile dryer, there are some articles that, due to fabric composition or
cleaning method, should not be dried in it.
WARNING: Dry only water washed fabrics. DO NOT dry articles spotted or washed in dry
cleaning solvents, a combustible detergent, or “all purpose” cleaner.
EXPLOSION COULD RESULT.
WARNING: DO NOT dry rags or articles coated or contaminated with gasoline, kerosene, oil, paint,
or wax. EXPLOSION COULD RESULT.
WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a
fire hazard.
WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or
similarly textured rubberlike materials. Drying in a heated basket (tumbler) may damage
plastics or rubber and may be a fire hazard.
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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 switch, lint drawer switch, or the heat circuit
safety devices ever be disabled.
WARNING: PERSONAL INJURY OR FIRE COULD RESULT SHOULD THE DRYER
DOOR SWITCH, LINT DRAWER SWITCH, OR THE HEAT CIRCUIT
SAFETY DEVICES EVER BE DISABLED.
10. This dryer is not to be used in the presence of dry cleaning solvents or fumes.
11. Remove articles from the dryer as soon as the drying cycle has been completed.
WARNING: Articles left in the dryer after the drying and cooling cycles have been completed can
create a fire hazard.
12. DO NOT operate steam dryers with more than 125 psi (8.62 bar) steam pressure. Excessive steam
pressure can damage steam coil and/or harm personnel.
13. Replace leaking flexible steam hoses or other steam fixtures immediately. DO NOT operate dryer with
leaking flexible hoses. PERSONAL INJURY MAY RESULT.
14. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO DRYER.
15. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less
then sixty-six percent (66%), 50 lbs (22.68 kg) of its rated capacity.
IMPORTANT: YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPLY
AND THE GAS SUPPLY OR THE STEAM SUPPLY 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).
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3
SECTION II
SPECIFICATIONS/COMPONENT IDENTIFICATION
A. SPECIFICATIONS
Steam*
Gas
TUMBLER DIAMETER
TUMBLER DEPTH
TUMBLER VOLUME
TUMBLER MOTOR
BLOWER MOTOR
DOOR OPENING (DIAMETER)
EXHAUST CONNECTION (DIAMETER)
AIRFLOW
DRYERS PER 20’/40’ CONTAINER
DRYERS PER 48’/53’ TRUCK
WATER CONNECTION**
VOLTAGE AVAILABLE
APPROX. NET WEIGHT
APPROX. SHIPPING WEIGHT
HEAT INPUT
INLET PIPE CONNECTION
VOLTAGE AVAILABLE
APPROX. NET WEIGHT
APPROX. SHIPPING WEIGHT
COMPRESSED AIR VOLUME
COMPRESSED AIR CONNECTION
STEAM CONSUMPTION
OPERATING STEAM PRESSURE
BOILER HP NORMAL LOAD
SUPPLY CONNECTION
RETURN CONNECTION
37”
36”
22.4 cu ft
1/2 hp
3 hp
21-1/2”
14”
1,700 cfm
94 cm
91.5 cm
0.634 cu m
0.373 kW
2.2 kW
54.6 cm
35.56 cm
48.14 cmm
10 / 20
24 / 26
3/4”-11.5 NH
208-480v 3ø 3, 4w 50/60 Hz
377.8 kg
833 lbs
400.5 kg
883 lbs
68,040 kcal/hr
270,000 Btu/hr
1” F.N.P.T.
208-480v 3ø 3, 4w 50/60 Hz
420.9 kg
928 lbs
443.6 kg
978 lbs
0.02 cmh
0.75 cfh
1/8” F.N.P.T.
170.5 kg/hr
375 lbs/hr
8.6 bar
125 psi max
11
1” F.N.P.T.
1” F.N.P.T.
Shaded areas are stated in metric equivalents
4/27/04
* Air-operated steam damper system must be provided with clean, dry and regulated 80 psi +/- 10 psi (5.51 bar +/- 0.69 bar) air supply.
** Water supply must be 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) for the fire suppression system to operate properly.
IMPORTANT: Steam dryers must be provided with a clean, dry, and regulated 80 psi +/- 10 psi
(5.51 bar +/- 0.68 bar) air supply. Air volume requirement is 0.75 cfh (cubic feet per
hour) (0.02 cmh [cubic meters per hour]).
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
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Specifications
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.
1
2
3
4
5
6
6
Description
Microprocessor Control/Keyboard (touch pad) Panel Assembly (controls)
Control (top access) Door Assembly
Main Door Assembly
Lint Compartment Area (located behind front panel)
Lint Drawer
Data Label and Installation Label
American Dryer Corp.
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2. Dryer Rear View
Illus. No.
1
2
3*
4
5
6
7
8
9
Description
Heating Unit
1/8” Compressed Air Supply Inlet
(behind electric service relay box for steam units only)
Electric Service Relay Box
Basket (tumbler) Bearing Mount Assembly
Idler Bearing Mount Assembly
Blower Motor Assembly
Leveling Leg (rear)
Basket (tumbler) Drive Motor Assembly (reversing models only)
Dryer Exhaust
* Electric service connections for gas and steam models are made in this box.
NOTE: 1/8-inch compressed air supply inlet (for steam models only) is located behind the electric
service relay box (not illustrated).
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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 Z223.1LATEST 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 combustible construction as noted in this manual (refer to Dryer
Enclosure Requirements in Section C).
5. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual
(refer to Dryer Enclosure Requirements in Section C).
6. The dryer must be installed with a proper exhaust duct connection to the outside as noted in this manual
(refer to Exhaust Requirements in Section E).
7. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual
(refer to Exhaust Requirements in Section E).
IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary.
8. The dryer must be installed with adequate clearance for air openings into the combustion chamber.
CAUTION: This dryer produces combustible lint 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).
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WARNING
An exhaust duct transition piece is shipped inside of the dryer’s
tumbler and MUST be installed on the dryer’s
exhaust duct, with the hardware provided, BEFORE
location venting is connected to the dryer.
THIS EXHAUST DUCT TRANSITION PIECE
MUST BE INSTALLED FIRST!
Failure to observe this installation requirement may result in
damage to the dryer, create a FIRE HAZARD and will VOID
the manufacturer’s warranty.
012999JEV-GS/cj
P/N: 114092
B. UNPACKING/SETTING UP
1. Inside the basket (tumbler) of this dryer is an exhaust transition piece that must be installed on the outlet of
the exhaust before any further venting is connected. To do this,
follow the procedures listed below:
a. Remove the exhaust transition piece from the basket
(tumbler) and place it on the exhaust outlet.
b. Using the screws provided, secure the exhaust transition
piece to the dryer.
NOTE: It is recommended that this joint be taped as well as
ALL other duct joints to prevent moisture and lint
from escaping into the building.
2. Leveling Dryer
The dryer is equipped with four (4) leveling legs, one (1) at
each corner of the dryer base. Two (2) are located in the rear
of the dryer base, and two (2) are located in the lint chamber.
To increase bearing life and improve efficiency, the dryer should
be tilted slightly to the rear.
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C. DRYER ENCLOSURE REQUIREMENTS
Bulkheads and partitions should be made of noncombustible material.
NOTE: Allowances must be made for opening the control door.
A 30-inches (76.2 cm) for optimum opening of load door.
B The maximum thickness of the bulkhead is 4-inches (10.16 cm). For electric dryers the maximum thickness
of the bulkhead is 1-inch (2.54 cm) within 3-inches (7.62 cm) from the top of the control door.
C For gas and electric dryers a minimum overhead clearance of 12-inches (30.48 cm) is required, providing no
sprinkler is located above the dryer. For steam dryers or if a sprinkler is located above the dryer, 18-inches
(45.72 cm) is required
D Dryer should be positioned 12-inches (30.48 cm) away from the nearest obstruction and 24-inches
(60.96 cm) is recommended for ease of installation, maintenance, and service.
E 2-inch (5.08 cm) minimum is required for opening the control door.
F Flooring should be level or below dryer cabinet for ease of removing panels during maintenance.
G Dryers may be positioned sidewall to sidewall, however a 1/16” (1.5875 mm) minimum allowance must be
made for the opening and closing of the control door, along with the removal of panels during maintenance.
D. FRESH AIR SUPPLY REQUIREMENTS
When the dryer is operating, it draws in room air, heats it, passes this air through the basket (tumbler), and
exhausts it out of the building. Therefore, the room air must be continually replenished from the outdoors. If the
make-up air is inadequate, drying time and drying efficiency will be adversely affected. Ignition problems and
sail switch “fluttering” problems may result, as well as premature motor failure from overheating.
Air supply (make-up air) must be given careful consideration to ensure proper performance of each dryer. An
unrestricted source of air is necessary for each dryer. An airflow of 1,700 cfm (cubic feet per minute) (48.14
cmm [cubic meters per minute]) must be supplied to each dryer. As a general rule, an unrestricted air entrance
from the outdoors (atmosphere) of a minimum of 2-1/2 square feet (0.23 square meters) is required for each
dryer. The dryer must be installed with provisions for adequate combustion and make-up air supply.
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To compensate for the use of registers or louvers used over the openings, the air must be increased by
approximately thirty-three percent (33%). Make-up air openings should not be located in an area directly near
where exhaust vents exit the building.
It is not necessary to have a separate make-up air opening for each dryer. Common make-up air openings are
acceptable. However, they must be set up in such a manner that the make-up air is distributed equally to ALL
the dryers. The dryer must be installed with provisions for adequate combustion and make-up air supply.
EXAMPLE: For a bank of four (4) dryers, two (2) openings measuring 2 feet by 2-1/2 feet (0.61 meters
by 0.76 meters) are acceptable.
Allowances must be made for remote or constricting passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
IMPORTANT: Make-up air must be provided from a source free of dry cleaning solvent fumes.
Make-up air that is contaminated by dry cleaning solvent fumes will result in
irreparable damage to the motors and other dryer components.
NOTE: Component failure due to dry cleaning solvent fumes 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: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCTWORK CAN
CREATE A POTENTIAL FIRE HAZARD.
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The ductwork should be laid out in such a way that the ductwork travels as directly as possible to the
outdoors with as few turns as possible. Single or independent dryer venting is recommended.
When single dryer venting is used, the length of the ductwork from the dryer to the outside exhaust outlet
must not exceed 15 feet (4.57 meters). The minimum diameter of this ductwork must be at least
14-inches (35.56 cm). In the case of multiple (common) dryer venting, the distance from the last dryer to
the outside exhaust outlet must not exceed 15 feet (4.57 meters). The shape of the ductwork is not
critical as long as the minimum cross section area is provided. It is suggested that the use of 90° turns be
avoided; use 30° and/or 45° angles instead. The radius of the elbows should preferably be 1-1/2 times
the diameter of the duct. Including basket (tumbler) dryer elbow connections or elbows used for outside
protection from the weather, no more than three (3) elbows should be used in the exhaust duct run. If
more than three (3) elbows are used, the cross section area of the ductwork must be increased in proportion
to the number of elbows added.
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork
system.
ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions,
which will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be
connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the
building. Inspection doors should be installed at strategic points in the exhaust ductwork for periodic
inspection and cleaning of lint from the ductwork.
IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust
duct area must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water
column (W.C.).
IMPORTANT: Minimum ductwork diameter is 14-inches (35.56 cm).
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger than the duct (all the way around).
The duct must be centered within this opening.
Outside Ductwork Protection
To protect the outside end of the horizontal ductwork from the weather, a 90º elbow bent downward should
be installed where the exhaust exits the building. If the ductwork travels vertically up through the roof, it
should be protected from the weather by using a 180º turn to point the opening downward. In either case,
allow at least twice the diameter of the duct opening and the nearest obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust
ductwork.
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2. Single Dryer Venting
When possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust duct should
be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns
as possible. It is suggested that the use of 90° turns in the ducting be avoided; use 30° and/or 45° angles
instead. The shape of the exhaust ductwork is not critical as long as the minimum cross section area is
provided.
IMPORTANT: Minimum duct size for a dryer is 14-inches (35.56 cm) for a round duct or
12-1/2” x 12-1/2” (31.75 cm x 31.75 cm) for a square duct. THE DUCT SIZE
MUST NOT BE REDUCED ANYWHERE DOWNSTREAM OF THE
DRYER.
IMPORTANT: Exhaust back pressure measured by a manometer at each basket (tumbler) exhaust
duct area must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water
column (W.C.).
It is suggested that the ductwork from each dryer not exceed 15 feet (4.57 meters) with no more than three
(3) elbows. If the ductwork exceeds 15 feet (4.57 meters) or has numerous elbows, the cross section area
of the ductwork must be increased in proportion to the length and number of elbows in it. In calculating
duct size, the cross section area of a square or rectangular duct must be increased by twenty percent
(20%) for each additional 15 feet (4.57 meters). The diameter of a round exhaust duct should be increased
ten percent (10%) for each additional 15 feet (4.57 meters). Each 90º elbow is equivalent to an additional
30 feet (9.14 meters), and each 45º elbow is equivalent to an additional 15 feet (4.57 meters).
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork
system.
IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be
increased to an extent. When the ductwork approaches the maximum limits as noted
in this manual, a professional heating, ventilating, and air-conditioning (HVAC) firm
should be consulted for proper venting information.
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ALL ductwork should be smooth inside with no projections from sheet metal screws or other obstructions,
which will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be
connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the
building. Inspection doors should be installed at strategic points in the exhaust ductwork for periodic
inspection and cleaning of lint from the ductwork.
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger than the duct (all the way around).
The duct must be centered within this opening.
Outside Ductwork Protection
To protect the outside end of the horizontal ductwork from the weather, a 90° elbow bent downward
should be installed where the exhaust exits the building. If the exhaust ductwork travels vertically up
through the roof, it should be protected from the weather by using a 180º turn to point the opening downward.
In either case, allow at least twice the diameter of the duct between the duct opening and the nearest
obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust
ductwork.
3. Multiple Dryer (common) Venting
If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be
channeled into a “common main duct.” The individual ducts should enter the bottom or side of the main
duct at an angle not more than 45º in the direction of airflow and should be spaced at least 38-1/4” (97.15
cm) apart. The main duct should be tapered, with the diameter increasing before each individual duct
is added.
IMPORTANT: No more than four (4) dryers should be connected to one (1) main common duct.
The main duct may be any shape as long as the minimum cross-sectional area is provided. The illustration
on page 15 shows the minimum cross section area for multiple dryer round or square venting. These
figures must be increased 10 square inches (64.52 square centimeters) when rectangular main ducting is
used, and the ratio of duct width to depth should not be greater than 3-1/2 to 1. These figures must be
increased in proportion if the main duct run to the last dryer to where it exhausts to the outdoors is unusually
long (over 15 feet [4.57 meters]) or has numerous (more than three [3]) elbows in it. In calculating
ductwork size, the cross section area of a square or rectangular duct must be increased twenty percent
(20%) for each additional 15 feet (4.57 meters). The diameter of a round exhaust must be increased ten
percent (10%) for each additional 15 feet (4.57 meters). Each 90º elbow is equivalent to an additional 30
feet (9.14 meters) and each 45º elbow is equivalent to an additional 15 feet (4.57 meters).
IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be
increased to an extent. Maximum proportional ductwork runs, cannot exceed 15 feet
(4.57 meters) more than the original limitations of 15 feet (4.57 meters) with three (3)
elbows. When the ductwork approaches the maximum limits as noted in this manual,
a professional heating, ventilating, and air-conditioning (HVAC) firm should be
consulted for proper venting information.
IMPORTANT: Exhaust back pressure measured by a manometer at each dryer exhaust duct area
must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column
(W.C.).
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The ductwork should be smooth inside with no projections from sheet metal screws or other obstructions,
which will collect lint. When adding ducts, the duct to be added should overlap the duct to which it is to be
connected. ALL ductwork joints must be taped to prevent moisture and lint from escaping into the
building. Inspection doors should be installed at strategic points in the exhaust ductwork for periodic
inspection and cleaning of lint from the ductwork.
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger than the duct (all the way around).
The duct must be centered within this opening.
Outside Ductwork Protection
To protect the outside end of the horizontal ductwork from the weather, a 90º elbow bent downward should
be installed where the exhaust exits the building. If the exhaust ductwork travels vertically up through the
roof, it should be protected from the weather by using a 180º turn to point the opening downward. In
either case, allow at least twice the diameter of the duct between the duct opening and nearest obstruction.
IMPORTANT: DO NOT use screens, louvers, or caps on the outside opening of the exhaust
ductwork.
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork
system.
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F. ELECTRICAL INFORMATION
1. Electrical Requirements
ALL electrical connections must be made by a properly licensed and competent electrician. This
is to ensure that the electrical installation is adequate and conforms to local and state regulations or codes.
In the absence of such codes, ALL electrical connections, materials, and workmanship must conform to
the applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION or in
Canada, the Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.
IMPORTANT: Failure to comply with these codes or ordinances, and/or the requirements stipulated
in this manual can result in personal injury or component failure.
NOTE: Component failure due to improper installation 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, it can create a fire hazard. The copper conductor
wire/cable must be of proper ampacity and insulation in accordance with electric codes for making ALL
service connections.
NOTE: The use of aluminum wire will VOID THE WARRANTY.
IMPORTANT: A separate protected circuit must be provided to each dryer.
NOTE: An individual ground circuit must be provided to each dryer, do not daisy chain.
IMPORTANT: The dryer must be connected to the electric supply shown on the data label. In the
case of 208 VAC or 240 VAC, the supply voltage must match the electric service
specifications of the data label exactly.
IMPORTANT: The wire size must be properly sized to handle the related current.
WARNING: 208 VAC AND 240 VAC ARE NOT THE SAME. Any damage done to dryer
components due to improper voltage connections will automatically VOID THE
WARRANTY.
NOTE: Component failure due to improper voltage application will VOID THE WARRANTY.
NOTE: The manufacturer reserves the right to make changes in specifications at any time without
notice or obligation.
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2. Electrical Service Specifications
Gas and Steam Models Only
ELECTRIC SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT:
NOTES:
208 VAC AND 240 VAC ARE NOT THE SAME. When ordering,
specify exact voltage.
A.
When fuses are used they must be dual element, time delay, current
limiting, class RK1 or RK5 ONLY.
Calculate/determine correct fuse value, by applying either local and/or
National Electrical Codes to listed appliance amp draw data.
B. Circuit breakers are thermal-magnetic (industrial) motor curve type
ONLY. For others, calculate/verify correct breaker size according to
appliance amp draw rating and type of breaker used.
SERVICE
VOLTAGE
PHASE
WIRE
SERVICE
208
240
380/400
416
440
460/480
3ø
3ø
3ø
3ø
3ø
3ø
3
3
4*
4*
4*
3
APPROX.
AMP DRAW
60 Hz
50 Hz
14.4
14.0
---7.5
-15.9
8.4
8.7
8.6
--
CIRCUIT
BREAKER
*3-Wire is available. Customer must contact the factory to special order 3-wire systems.
20
20
15
15
15
15
4/15/04
3. Grounding
A ground (earth) connection must be provided and installed in accordance with state and local codes. In
the absence of these codes, grounding must conform to applicable requirements of the National Electrical
Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the installation must conform to applicable
Canada Standards: Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION. The
ground connection may be to a proven earth ground at the location service panel.
For added personal safety, when possible, it is suggested that a separate ground wire be connected from the
ground connection of the dryer to a grounded cold water pipe. DO NOT ground to a gas pipe or hot
water pipe. The grounded cold water pipe must have metal-to-metal connection ALL the way to the
electrical ground. If there are any nonmetallic interruptions, such as, a meter, pump, plastic, rubber, or other
insulating connectors, they must be jumped out with no. 4 copper wire and securely clamped to bare metal
at both ends.
IMPORTANT: For personal safety and proper operation, the dryer must be grounded.
Provisions are made for ground connection in each dryer at the electrical service connection area.
4. Electrical Connections
A wiring diagram is located inside the control box for connection data.
If local codes permit, power to the dryer can be made by the use of a flexible U.L. listed power cord/pigtail
(wire size must conform to rating of dryer), or the dryer can be hard wired directly to the service breaker
panel. In both cases, a strain relief must be installed where the wiring enters the dryer.
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Gas and Steam Models Only
IMPORTANT: A separate protected circuit must be provided
to each dryer.
3-Phase (3ø) Wiring Connections/Hookup
The electrical connections on ALL 3-phase (3ø) gas and steam
dryers are made into the rear service box located at the upper left
area of the dryer. The electrical connections are made at the
power distribution block located in the service box. The ground
connection is made to the copper lug, also provided in this box.
To gain access, the service box cover must be removed.
The neutral will only be used on 4-wire service. This is typical for
380-416V, 50 Hz.
G. GAS INFORMATION
It is your responsibility to have ALL plumbing connections made by a qualified professional to ensure that the
gas plumbing installation is adequate and conforms to local and state regulations or codes. In the absence of
such codes, ALL plumbing connections, materials, and 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 valve must be disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa). The dryer must be isolated
from the gas supply piping system by closing its individual manual shutoff valve during any pressure testing of the
gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).
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IMPORTANT: Failure to isolate or disconnect dryer from supply as noted can cause irreparable
damage to the gas valves VOIDING THE WARRANTY.
WARNING: FIRE OR EXPLOSION COULD RESULT DUE TO FAILURE OF
ISOLATING OR DISCONNECTING THE GAS SUPPLY AS NOTED.
1. Gas Supply
The gas dryer installation must meet the American National Standard...National Fuel Gas Code ANSI
Z223.1-LATEST EDITION, or in Canada, the Canadian Installation Codes CAN/CGA-B149.1 M91 (Natural
Gas) or CAN/CGA-B149.2-M91 (liquid propane [L.P.] Gas) or LATEST EDITION, as well as local codes
and ordinances and must be done by a qualified professional.
NOTE: Undersized gas piping will result in ignition problems, slow drying, increased use of energy, and
can create a safety hazard.
The dryer must be connected to the type of heat or gas indicated on the dryer data label. If this information
does not agree with the type of gas available, DO NOT operate dryer. Contact the reseller who sold the
dryer or contact the ADC factory.
IMPORTANT: Any burner changes or conversions must be made by a qualified professional.
The input ratings shown on the dryer data label are for elevations of up to 2,000 feet (609.6 meters), unless
elevation requirements of over 2,000 feet (609.6 meters) were specified at the time the dryer order was
placed with the factory. The adjustment or conversion of dryers in the field for elevations over 2,000 feet
(609.6 meters) is made by changing each burner orifice. If this conversion is necessary, contact the
reseller who sold the dryer or contact the ADC factory.
IMPORTANT: This gas dryer is not provided with an internal gas supply shut off and an external gas
supply shut off must be provided.
2. Technical Gas Data
a. Gas Specifications
TYPE OF GAS
NATURAL
Manifold Pressure*
In-Line Pressure
3.5 inches W.C.
LIQUID PROPANE
8.7 mb
6.0 - 12.0 inches W.C. 14.92 - 29.9 mb
10.5 inches W.C.
26.1 mb
11.0 inches W.C.
27.4 mb
Shaded areas are stated in metric equivalents
b. Gas Connections
Inlet connection .......... 1” N.P.T.
Inlet supply size .......... 1” Diameter Pipe (minimum)
Btu/hr input ................. 270,000 (68,040 kcal/hr)
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1) Natural Gas
Regulation is controlled by the dryer’s gas valve’s internal regulator. Incoming supply pressure
must be consistent between a minimum of 6.0 inches (14.92 mb) and a maximum of 12.0 inches
(29.9 mb) water column (W.C.) pressure.
2) Liquid Propane (L.P.) Gas
Dryers made for use with L.P. gas have the gas valve’s internal pressure regulator blocked open so
that the gas pressure must be regulated upstream of the dryer. The pressure measured at each
gas valve pressure tap must be a consistent 10.5 inches (26.1 mb) water column. There is no
regulator or regulation provided in an L.P. dryer. The water column pressure must be regulated at
the source (L.P. tank) or an external regulator must be added to each dryer.
TYPE OF GAS
Btu/hr
Rating
kcal/hr
Rating
Qty.
D.M.S.*
Part No.
Qty.
D.M.S.*
Part No.
Liquid
Propane
Conversion Kit
Part Number
270,000
68,040
4
#23
140856
#41
#41
140811
881016
Natural
Liquid Propane
Shaded area is stated in metric equivalent
* Drill Material Size (D.M.S.) equivalents are as follows:
Natural Gas ........................ #23 = 0.154” (3.9116 mm).
L.P. Gas ............................. #41 = 0.096” (2.4384 mm).
3. Piping and Connections
ALL components/materials must 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 (L.P. Gas)
or LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances
and must be done by a qualified professional. It is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for the total amount of ALL the appliance Btus being
supplied.
The dryer is provided with a 1” N.P.T. inlet pipe connection extending out the back area of the burner box.
The minimum pipe size connection (supply line) to the dryer is 1” diameter. For ease of servicing, the gas
supply line of each dryer must have its own shutoff valve.
The size of the main gas supply line (header) will vary depending on the distance this line travels from the
gas meter or, in the case of L.P. gas, the supply tank, other gas operated appliances on the same supply line,
etc. Specific information regarding supply line size should be determined by the gas supplier.
NOTE: Undersized gas supply piping can create a low or inconsistent pressure, which will result in
erratic operation of the burner ignition system.
Consistent gas pressure is essential at ALL gas connections. It is recommended that a 1-inch (2.54 cm)
pipe gas loop be installed in the supply line servicing a bank of dryers. An in-line pressure regulator must
be installed in the gas supply line (header) if the (natural) gas pressure exceeds 12.0 inches (29.9 mb) of
W.C. pressure.
IMPORTANT: A water column pressure of 3.5 inches (8.7 mb) for natural gas and 10.5 inches
(26.1 mb) for L.P. dryers is required at the gas valve pressure tap of each dryer for
proper and safe operation.
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A 1/8” N.P.T. plugged tap, accessible for a test gauge connection, must be installed in the main gas supply
line immediately upstream of each dryer.
IMPORTANT: Pipe joint compounds that resist the action of natural and liquid propane (L.P.) gases
must be used.
IMPORTANT: Test ALL connections for leaks by brushing on a soapy water solution (liquid
detergent works well).
WARNING: NEVER TEST FOR LEAKS WITH A FLAME!!!
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).
IMPORTANT: This gas dryer is not provided with an internal gas supply shut off and an external gas
supply shut off must be provided.
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 ensure that
the installation is adequate and conforms to local and state regulations or codes.
IMPORTANT: Failure to comply with the requirements stipulated in this manual can result in
component failure, which will VOID THE WARRANTY.
NOTE: Thuis dryer is manufactured with a pneumatic (piston) damper system, which requires an
external supply of clean, dry, and regulated air (80 psi +/- 10 psi [5.51 bar +/- 0.68 bar]).
Refer to Steam Damper Air System Connections, Section H, item 3.
IMPORTANT: STEAM pH LEVEL – The normal pH level for copper type steam coils must be
maintained between a value of 8.5 to 9.5. For steel type steam coils, the pH level
must be maintained between a value of 9.5 and 10.5. These limits are set to limit the
acid attack of the steam coils.
1. Steam Requirements, High Pressure
a. Inlet ----- 1” supply line connection – qty. one (1) at top manifold.
b. Return -- 1” return line connection – qty. one (1) at bottom manifold.
Operating Steam Pressure
Maximum
125 psig*
Heat Input (Normal Load)
861.84 kPa
11 Bhp
Consumption (Approximate)
375 lbs/hr
170.09 kg/hr
Shaded areas are stated in metric equivalents
* The minimum operating pressure is 100 psig (689.47 kPa) for optimum results.
2. Installation Instructions
To insure that an adequate supply of steam is provided, be sure that the steam supply lines and steam return
lines are sized and laid out as stipulated in this manual. Inadequate steam supply lines and steam return
lines or improper steam plumbing will result in poor performance and can cause component failure. Clean,
dry, and regulated steam must be provided to the dryer.
IMPORTANT: Steam coil failure due to water hammer by wet steam VOIDS THE WARRANTY.
a. The pressure of the condensate in the steam supply line will cause water hammer and subsequent heat
exchanger (steam coil) failure. The steam supply line connection into the main supply line must be
made with a minimum 12-inch (30.48 cm) riser. This will prevent any condensate from draining towards
the dryer.
b. The steam supply piping to the dryer must include a 12-inch (30.48 cm) riser along with a drip trap and
check valve. This will prevent any condensate from entering the steam coil.
c. Flexible hoses or couplings must be used. The dryer vibrates slightly when it runs and this will cause
the steam coil connections to crack if they are hard piped to the supply and return mains.
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d. Shutoff valves for each dryer should be installed in the supply, return, and drip trap return lines. This
will allow the dryer to be isolated from the supply and return mains if the dryer needs maintenance
work.
e. Install an inverted bucket steam trap and check valve for each unit at least 12-inches (30.48 cm) below
steam coil as close to the coil as possible. A trap with a capacity of 1,000 lbs (454 kg) of condensate per
hour at 125 psi (8.62 bar) is needed for each unit.
f. A vacuum breaker should be installed for each unit in the piping. This will prevent the condensing
steam from causing a vacuum inside the coil and possibly damaging the coil.
g. The supply and return lines should be insulated. This will save energy and provide for the safety of the
operator and maintenance personnel.
h. Water pockets in the supply line, caused by low points, will provide wet steam to the coil possibly
causing coil damage. ALL horizontal runs of steam supply piping should be pitched 1/4-inch
(6.35 mm) for every 1 foot (0.30 meters) back towards the steam supply header causing any condensate
in the line to drain to the header. Install a bypass trap in any low point to eliminate wet steam.
IMPORTANT: Flexible hoses and couplings must be used. Coil failure due to hard plumbing
connections will VOID THE WARRANTY.
3. Steam Damper Air System Connections
This dryer is manufactured with a pneumatic (piston) damper system, which requires an external supply of
compressed air. The air connection is made to the steam damper solenoid valve, which is located at the
rear inner top area of the dryer just above the electric service relay box.
a. Air Requirements
Compressed
Air Supply
Normal
Minimum Supply
Maximum Supply
Air Pressure
80 psi
70 psi
90 psi
5.51 bar
4.82 bar
6.21 bar
Shaded areas are stated in metric equivalents
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b. Air Connection
Air connection to system --- 1/8” N.P.T.
c. No air regulation or filtration is provided with the dryer. External regulation and filtration of 80 psi
(5.51 bar) must be provided. It is suggested that a regulator or filter gauge arrangement be added to
the compressed air line just before the dryer connection. This is necessary to insure that correct and
clean air pressure is achieved.
4. Steam Damper System Operation
The steam damper, as shown in the illustration below, allows the coil to stay constantly charged eliminating
repeated expansion and contraction. When the damper is opened, the air immediately passes through the
already hot coil, providing instant heat to start the drying process. When the damper is closed, ambient air
is drawn directly into the basket (tumbler), allowing a rapid cool down.
Diagram 1 shows the damper in the heating (open) mode, allowing heat into the basket (tumbler).
Diagram 2 shows the damper in the cool down (closed) mode, pulling ambient air directly into the basket
(tumbler) without passing through the coils.
NOTE: With the dryer off or with no air supply, the damper is in the cool down mode as shown in
Diagram 2.
MAN0595
5. Steam Damper Air Piston (flow control) Operation Adjustment
Although the damper operation was tested and adjusted prior to shipping at 80 psi (5.51 bar), steam damper
operation must be checked before the dryer is put into operation. Refer to page 28 for instructions to
check steam damper operation. If damper air adjustment is necessary, locate flow control valve and make
necessary adjustments as noted below.
MAN5223
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I. WATER INFORMATION
BEFORE YOU START!
CHECK LOCAL CODES AND PERMITS
Call your local water company or the proper municipal authority for information regarding local codes.
IMPORTANT: It is your responsibility to have ALL plumbing connections made by a qualified
professional to ensure that the plumbing installation is adequate and conforms to local,
state, and federal regulations or codes.
IMPORTANT: It is the installation or owners responsibility to see that the necessary or required
water, water pressure, pipe size, or connections are provided. Manufacturer assumes
no responsibility if the fire suppression system is not connected, installed, or
maintained properly.
INSTALLATION
1. Requirements
The fire suppression system must be supplied with a minimum water pipe size of 1/2” and be provided with
40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) of pressure. For use of optional manual bypass, a second source
with the same piping and pressure requirements is required.
Flexible 1/2 feeds must be provided to avoid damage to electric water solenoid valve by vibration.
IMPORTANT: Flexible supply line/coupling must be used. Solenoid valve failure due to hard
plumbing connections WILL VOID WARRANTY.
If the rear area of the dryer, or the water supply is located in an area where it will be exposed to
cold/freezing temperatures, provisions must be made to protect these water lines from freezing.
WARNING: If the water in the supply line or water solenoid valve freezes, the fire suppression system
will be INOPERATIVE!!
IMPORTANT: Appliance is to be connected to the water mains using a new hose-set and the old
hose-sets should not be reused.
2. Water Connections:
The water connection is made to the 3/4”-11.5 NH hose adapter
of the electric water solenoid valve, located at the rear upper
midsection of the dryer (refer to the photo).
The water solenoid valve has a 3/8” M.P.T. connection supplied with
a 3/4”-11.5 NH hose adapter to provide the minimum
1/2-inch supply (feed) line. Flexible supply line/coupling must be
used in an effort to avoid damaging the electric water solenoid valve.
NOTE: The 3/4”-11.5 NH is a standard hose coupling screw thread. It is not to be confused with
3/4” N.P.T. The sealing of an NH connection is made with a washer opposed to the mating
threads of an N.P.T. assembly. The two (2) thread designs are not compatible.
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IMPORTANT: Flexible supply line/coupling must be used. Solenoid valve failure due to hard
plumbing connections WILL VOID WARRANTY. It is recommended that a filter
or strainer be installed in the water supply line.
Typical water supply:
OPTIONAL MANUAL BYPASS
Provisions are made in the dryer’s fire suppression system for the installation of an optional manual bypass.
Depending on the model dryer, the connections for the manual bypass are made at the “T” or “four way” fitting
located in the outlet supply side of the water solenoid valve. The use and connections of this manual bypass are
at the option or discretion of the owner.
The water connection for the manual bypass is made to the “T” or “four way” fitting which has a 3/8” F.P.T. and
a coupling must be used to provide the minimum 1/2” supply (feed) line.
If the rear area of the dryer, or the water supply is located in an area where it will be exposed to cold/freezing
temperatures, provisions must be made to protect these water lines from freezing.
WARNING: If the water in the supply line or water solenoid valve freezes, the fire suppression system
will be INOPERATIVE!!
The manual ball cock shutoff valve must be located outside of the dryer at a distance from the dryer where it
is easily accessible.
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3. Electrical Requirements
No independent external power source or supply connection is necessary. The 24 volt power to operate the
fire suppression system is accomplished internally in the dryer (from the dryer controls).
WARNING: Electrical power must be provided to the dryer at ALL times. If the main electrical
power supply to the dryer is disconnected, the fire suppression system is
INOPERATIVE!!
I. PREPARATION FOR OPERATION/START-UP
The following items should be checked before attempting to operate the dryer:
1. Read and follow ALL “CAUTION,” “WARNING,” and “DIRECTION” labels attached to the dryer.
2. Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label. In the case
of 208 VAC or 240 VAC, the supply voltage must match the electric service exactly.
3. GAS MODELS - check to ensure that the dryer is connected to the type of heat/gas indicated on the dryer
data label.
4. GAS MODELS - the sail switch damper assembly was installed and adjusted at the factory prior to
shipping. However, each sail switch adjustment must be checked to ensure that this important safety
control is functioning. (Refer to page 29 for sail switch adjustment.)
5. GAS MODELS - be sure that ALL gas shutoff valves are in the open position.
6. Be sure ALL back panels (guards) and electric box cover have been replaced.
7. Check ALL service doors to ensure that they are closed and secured in place.
8. Be sure the lint drawer is closed and securely in place.
NOTE: Lint drawer must be all the way in place to activate safety switch otherwise the dryer will not
start.
9. Rotate the basket (tumbler/drum) by hand to be sure it moves freely.
10. Check bolts, nuts, screws, terminals, and fittings for security.
11. STEAM MODELS - check to insure air supply (80 psi [5.51 bar]) is supplied to dryer.
12. STEAM MODELS - check to insure ALL steam shutoff valves are open.
13. STEAM MODELS - check steam damper operation.
14. Check basket (tumbler) bearing setscrews to insure they are ALL tight.
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J. PREOPERATIONAL TESTS
ALL dryers are thoroughly tested and inspected before leaving the factory. However, a preoperational test
should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or
due to marginal location (installation) conditions.
1. Turn on electric power to the dryer.
Open ALL shutoff valves (gas models only).
2. Refer to the Operating Instructions for starting your particular model dryer.
3. Gas Dryers
a. When a gas dryer is first started (during initial start-up), it has a tendency not to ignite on the first ignition
attempt. This is because the gas supply piping is filled with air, so it may take a few minutes for the air
to be purged from the lines.
NOTE: During the purging period, check to be sure that ALL gas shutoff valves are open.
NOTE: Gas dryers are equipped with a Direct Spark Ignition (DSI) system, which has internal
diagnostics. If ignition is not established within three (3) times, the heat circuit in the DSI
module will lockout until it is manually reset. To reset the DSI system, open and close the main
door and restart the dryer.
b. A gas pressure test should be taken at the gas valve pressure tap of each dryer to ensure that the
water column (W.C.) pressure is correct and consistent.
NOTE: Water column pressure requirements (measured at the pressure tap of the gas valve body):
Natural Gas ........................... 3.5 Inches (8.7 mb) water column.
Liquid Propane (L.P.) Gas ...... 10.5 Inches (26.1 mb) water column.
IMPORTANT: There is no regulator provided in an L.P. dryer. The water column pressure must be
regulated at the source (L.P. tank), or an external regulator must be added to each
dryer.
4. Steam Dryers
Check to insure that steam damper is functioning properly.
The steam damper should not “slam” (open or closed) when it reaches the end of (piston) travel. Additionally,
the steam damper should not bind and/or stop during travel. If either of these conditions occur, the flow
control must be adjusted. (Refer to the bottom illustration on page 24 for air adjustment instructions.)
5. Make a complete operational check of ALL safety related circuits:
a. Door switch(es)
b. Hi-limit thermostats
c. Lint drawer switch
d. Sail switch (for gas models only)
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NOTE: To check for proper sail switch operation (for gas models only), open the main door and while
holding main door switch plunger in, start dryer. Dryer should start but heat circuit should not
be activated (on). If heat (burner) does activate, shut dryer off and make necessary
adjustments.
6. The dryer should be operated through one (1) complete cycle to ensure that no further adjustments are
necessary and that ALL components are functioning properly.
BASKET (TUMBLER) COATING
The basket (tumbler) is treated with a protective coating. We suggest dampening old garments or cloth material
with a solution of water and nonflammable mild detergent and tumbling them in the basket (tumbler) to remove
this coating.
7. Make a complete operational check of ALL operating controls.
Microprocessor controller (computer) programs/selections:
Each microprocessor controller (computer) has been preprogrammed by the factory with the most commonly
used parameter (program) selections. If computer program changes are required, refer to the computer
programming manual, which was shipped with the dryer.
8. Check the electric service phase sequence. While the dryer is operating, check to see if the blower wheel
(impellor/fan) is rotating in the proper direction. Looking from the front, the blower wheel (impellor/fan)
should spin in the clockwise (CW) direction. If it is, the phasing is correct. If the phasing is incorrect,
reverse two (2) of the three (3) leads at connections L1, L2, or L3 of the power supply to the dryer.
IMPORTANT: If the blower wheel (impellor/fan) is rotating in the wrong direction, it will drastically
reduce drying efficiency, and it can also cause premature component failure.
9. Reversing basket (tumbler) dryers should never be operated with less than a 50 lb (22.68 kg) load (dry
weight), since the load’s weight effects the basket (tumbler) coast time during a direction reversal command.
It is important that the basket (tumbler) comes to a complete stop prior to starting in opposite direction.
Microprocessor Models
a. Spin and dwell (stop) times are not adjustable in the Automatic Mode and have been preprogrammed
into the microprocessor controller (computer) for 120-seconds spin time and a 5-second dwell (stop)
time.
b. Spin and dwell (stop) times are adjustable in the Manual (timed) Mode.
10. Check to insure that ALL setscrews (i.e., basket [tumbler] drive, idler, etc.) are tight.
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K. PREOPERATIONAL INSTRUCTIONS
To start the dryer ( microprocessor controller [computer] dryers):
1. The light emitting diode (L.E.D.) display will read “REAdY.”
2. Press the “E” on the keyboard (touch pad).
3. The dryer will start and the L.E.D. display will flash “dRYING MANUAL CYCLE,” “dRY TEMP 180º F,”
“COOL TEMP 80º F,” “30 REMAIN,” and “dRUM TEMP.”
Refer to the User’s Manual for detailed operating instructions.
L. SHUTDOWN INSTRUCTIONS
If the dryer is to be shutdown (taken out of service) for a period of time, the following must be performed:
1. Discontinue power to the dryer either at the external disconnect switch or the circuit breaker.
2. Discontinue the gas or steam supply:
a. GAS MODELS - discontinue the gas supply.
1) SHUT OFF external gas supply shutoff valve.
2) SHUT OFF internal gas supply shutoff valve located at the gas valve train area.
b. STEAM MODELS - discontinue the steam supply.
SHUT OFF external steam valves in the supply lines and the return lines.
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SECTION IV
SERVICE/PARTS INFORMATION
A. SERVICE
Service must be performed by a qualified trained technician, service agency, or gas supplier. If service is
required, contact the reseller from whom the ADC equipment was purchased. If the reseller cannot be contacted
or is unknown, contact the ADC Service Department for a reseller in your area.
NOTE: When contacting the ADC Service Department, be sure to give them the correct model
number and serial number so that your inquiry is handled in an expeditious manner.
B. PARTS
Replacement parts should be purchased from the reseller from whom the ADC equipment was purchased. If
the reseller cannot be contacted or is unknown, contact the ADC Parts Department for a reseller in your area.
Parts may also be purchased directly from the factory by calling the ADC Parts Department at (508) 678-9000
or you may FAX in your order at (508) 678-9447.
NOTE: When ordering replacement parts from the ADC reseller or the ADC factory be sure to give
them the correct model number and serial number so that your parts order can be
processed in an expeditious manner.
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SECTION V
WARRANTY INFORMATION
A. RETURNING WARRANTY CARDS
Before any dryer leaves the ADC factory test area, a warranty card is placed on the back side of the main door
glass. These warranty cards are intended to serve the customer where we record the individual installation date
and warranty information to better serve you should you file a warranty claim.
If a warranty card did not come with your dryer, contact the ADC Warranty Department or the ADC Service
Department at (508) 678-9000.
IMPORTANT: A separate warranty card must be completed and returned for each individual dryer.
NOTE: Be sure to include the installation date when returning the warranty card(s).
B. WARRANTY
For a copy of the ADC commercial warranty covering your particular dryer(s), contact the ADC reseller from
whom you purchased the equipment and request a dryer warranty form. If the reseller cannot be contacted or
is unknown, warranty information can be obtained from the factory by contacting the ADC Warranty Department
at (508) 678-9000.
NOTE: Whenever contacting the ADC factory for warranty information, be sure to have the dryer’s
model number and serial number available so that your inquiry can be handled in an
expeditious manner.
C. RETURNING WARRANTY PARTS
ALL dryer or parts warranty claims or inquires should be addressed to the ADC Warranty Parts Department.
To expedite processing, the following procedures must be followed:
1. No parts are to be returned to ADC without prior written authorization (“Return Material Authorization”
[R.M.A.]) from the factory.
NOTE: An R.M.A. is valid for only thirty (30) days from date of issue.
The R.M.A. issued by the factory, as well as any other correspondence pertaining to the returned part(s),
must be included inside the package with the failed merchandise.
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2. Each part must be tagged with the following information:
a. Model number and serial number of the dryer from which part was removed.
b. Nature of failure (be specific).
c. Date of dryer installation.
d. Date of part failure.
e. Specify whether the part(s) being returned is for a replacement, a credit, or a refund.
NOTE: If a part is marked for a credit or a refund, the invoice number covering the purchase of the
replacement part must be provided.
NOTE: Warranty tags (ADC Part No. 450064) are available at “no charge” from ADC upon request.
3. The company returning the part(s) must clearly note the complete company name and address on the
outside of the package.
4. ALL returns must be properly packaged to insure that they are not damaged in transit. Damage claims
are the responsibility of the shipper.
IMPORTANT: No replacements, credits, or 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 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, inspect the exhaust ducting and remove any lint buildup.
Clean lint from lint drawer/screen every third or every fourth load. Inspect lint screen and replace if torn.
NOTE: The frequency can be determined at each location.
WEEKLY
Clean lint accumulation from the lint chamber, thermostat, and microprocessor temperature sensor (sensor
bracket) area.
WARNING: TO AVOID THE HAZARD OF ELECTRICAL SHOCK, DISCONTINUE
ELECTRICAL POWER SUPPLY TO THE DRYER.
STEAM DRYERS
Clean the steam coil fins. We suggest using compressed air and a vacuum cleaner with brush attachment.
NOTE: When cleaning steam coil fins, be careful not to bend the fins. If the fins are bent, straighten by
using a fin comb, which is available from any local air conditioning supply house.
90 DAYS
1. Remove lint from around basket (tumbler), drive motors, and surrounding areas.
2. Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment.
3. Clean any lint accumulation in and around both the blower and drive motor casing openings.
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NOTE: To prevent damage, avoid cleaning and/or touching ignitor/flame-probe assembly.
4. Remove lint accumulation from inside control box and at rear area behind control box.
EVERY 6 MONTHS
Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer’s internal
exhaust ducting.
WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCTWORK CAN
CREATE A POTENTIAL FIRE HAZARD.
WARNING: DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION
AIR. CHECK BACK DRAFT DAMPERS IN THE EXHAUST DUCTWORK.
INSPECT AND REMOVE ANY LINT ACCUMULATION, WHICH CAN CAUSE
THE DAMPER TO BIND OR STICK.
NOTE: A back draft damper that is sticking partially closed can result in slow drying and shutdown of
heat circuit safety switches or thermostats.
NOTE: When cleaning the dryer cabinets, avoid using harsh abrasives. A product intended for the
cleaning of appliances is recommended.
B. ADJUSTMENTS
7 DAYS AFTER INSTALLATION AND EVERY 6 MONTHS THEREAFTER
Inspect bolts, nuts, screws, setscrews, grounding connections, and nonpermanent gas connections (unions, shutoff
valves, and orifices). Motor and drive belts should be examined. Cracked or seriously frayed belts should be
replaced. Tighten loose V-belts when necessary. Complete operational check of controls and valves. Complete
operational check of ALL safety devices (door switch, lint drawer switch, sail switch, burner, and hi-limit
thermostats).
C. LUBRICATION
The motor bearings and under normal/most conditions the basket (tumbler) and idler bearings are permanently
lubricated. It is physically possible to relubricate the basket (tumbler) and idler bearings if you choose to do so
even though this practice is not necessary. Use Shell Alvania #2 or its equivalent. The basket (tumbler) and idler
bearings used in the dryer DO NOT have a grease fitting. Provisions are made in the bearing housing for the
addition of a grease fitting, which can be obtained elsewhere, or from ADC by ordering kit Part No. 882159
(basket [tumbler] only), which includes two (2) fittings.
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D. LINT DRAWER REMOVAL
To remove the lint drawer from the dryer pull drawer out approximately halfway. Rotate and move lint drawer
stop hinge (refer to the illustration below) downward and pull drawer out.
IMPORTANT: After reinstalling the lint drawer back into the dryer, be sure to rotate/move the hinge
back to the upward stop position.
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SECTION VII
DATA LABEL INFORMATION
When contacting American Dryer Corporation, certain information is required to insure proper service/parts
information from ADC. This information is on the data label located on the left side panel area behind top control
(access) door. When contacting ADC, please have the model number and serial number available.
1. MODEL NUMBER – Describes the style of dryer and type of heat (gas, electric, or steam).
2. SERIAL NUMBER – Allows the manufacturer to gather information on your particular dryer.
3. MANUFACTURING CODE NUMBER – The number issued by the manufacturer, which 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.]
gas), electric, or steam.
5. HEAT INPUT (for GAS DRYERS) – This describes the heat input in British Thermal Units per Hour (Btu/hr).
6. ORIFICE SIZE (for GAS DRYERS) – Gives the number drill size used.
7. ELECTRIC SERVICE – This describes the electric service for your particular model.
8. GAS MANIFOLD PRESSURE (for GAS DRYERS) – This describes the manifold pressure taken at the gas valve tap.
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SECTION VIII
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS
1. Microprocessor Controller (computer) Board
a. Upon completing installation of the replacement microprocessor controller (computer) board, reestablish
power to the dryer.
b. Start the drying cycle by pressing any of the preset cycles in letters A-F.
c. Verify that the applicable indicator lights on the back side of the microprocessor controller (computer)
board are lit. (Refer to the illustration below.)
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2. For Models with Direct Spark Ignition (DSI) Module (Type I)
Theory of Operation:
Start the drying cycle. When the gas burner ignites within the
chosen trial for ignition time (6-seconds), the flame sensor detects
gas burner flame and signals the DSI module to keep the gas
valve open as long as there is a call for heat. The DSI module
will “LOCKOUT” if the gas burner flame is not sensed at the
end of the trial for ignition period. The trial for ignition period will
be repeated for a total of three (3) retries/trials (the initial try and
two [2] more retries/trials). If the flame is not sensed at the end
of the third retry/trial (inter-purge period of 30-seconds) the DSI
module will “LOCKOUT” (light emitting diode [L.E.D.] diagnostic
indicator flashes).
A steady L.E.D. indicator indicates normal operation.
No L.E.D. indicator indicates a power or an internal failure has occurred.
3. For Models with DSI Module (Type II)
Theory of Operation:
Start the drying cycle. When the gas burner ignites within the
chosen trial for ignition time (8-seconds), the flame sensor detects
gas burner flame and signals the DSI module to keep the gas
valve open as long as there is a call for heat. The DSI module
will “LOCK OUT” if the gas burner flame is not sensed at the
end of the trial for ignition period. The trial for ignition period will
be repeated for a total of three (3) retries/trials (the initial try and
two [2] more retries/trials). If the flame is not sensed at the end
of the third retry/trial (inter-purge period of 30-seconds), the DSI
module will “LOCK OUT” (a red L.E.D. diagnostic indicator will
flash).
An unlit red L.E.D. diagnostic indicator indicates normal operation.
A lit green L.E.D. diagnostic indicator indicates dryer controller is calling for heat and that ALL interlocks
have been satisfied.
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SECTION IX
MANUAL RESET BURNER HI-LIMIT INSTRUCTIONS
A. PHASE 7
This dryer was manufactured with a manual reset burner hi-limit thermostat, which is monitored by the Phase 7
computer. If the burner hi-limit is open prior to the start of the drying cycle, the dryer will start momentarily and
then shut down, the Phase 7 computer will display “BURNER HIGH LIMIT FAULT” with an audio indication.
If the burner hi-limit opens during a drying cycle, the Phase 7 computer will also display the same error code
described above, along with an audio indication. If the drum temperature is above 100° F (38° C), the dryer will
continue to run with no heat for 3 minutes or until the drum temperature has dropped below 100° F (38° C). The
clear/stop button on the Phase 7 keyboard (touch pad) must be pressed to clear the error condition. The open
burner hi-limit must be reset “manually” prior to the start of the next cycle.
B. DUAL TIMER
This dryer was manufactured with a manual reset burner hi-limit thermostat. If the burner hi-limit is open prior
to the start of the drying cycle, or during the cycle, the dryer will not recognize the open state of the burner
hi-limit and will start or continue through the drying cycle with no heat. Manual reset hi-limit must be reset
manually.
This hi-temperature condition may be caused due to a restricted exhaust, poor airflow, or improper burner
operation.
The location of the burner hi-limit is on the right side of the burner box, looking at the burner from the back of the
dryer.
WARNING: Discontinue power to dryer before attempting to reset hi-limit.
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ADC 113159
2 - 05/05/04-25
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