American Dryer Corp AD-24 Phase 7 User Manual
AD-24 Installation Manual
Phase 7
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 department.
— 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 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 USA
T elephone: +1 (508) 678-9000 / Fax: +1 (508) 678-9447
e-mail: techsupport@amdry .com
www.amdry.com
ADC Part No. 113222- 5
Retain This Manual in a Safe Place for Future R eference
This product embodies 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 Y OUR SAFETY
Do not store or use gasoline
or other flammable vapors
and liquids in the vicinity of
this or any other appliance.
We have tried to make this manual as complete as possible and hope you will find it useful. The manufacturer
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 VO TRE 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 ___________________________________________________________________________________
AD-24 Phase 7
SERIAL NUMBER(S) ___________________________________________________________________________________
____________________________________________________________________________________________________
____________________________________________________________________________________________________
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 NO TE T O 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 LOCKOUT THE ELECTRIC SUPPL Y 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. 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
DRYERS 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 SUPER VISED IF NEAR DR YERS IN OPERATION.
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 switch, 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...................................................................................................... 5
SECTION III
INST ALLA TION PROCEDURES.............................................................................. 7
A. Unpacking/Setting Up ................................................................................................................. 7
B. Location of the Dryer.................................................................................................................. 7
C. Dryer Enclosure Requirements .................................................................................................... 8
D. Fresh Air Supply Requirements ................................................................................................... 9
E. Exhaust Requirements ............................................................................................................... 10
F. Electrical Information ................................................................................................................ 16
G . Gas Information ........................................................................................................................ 21
H. Preparation for Operation/Start-Up........................................................................................... 24
I. Preoperational T ests ................................................................................................................. 24
J. Preoperational Instructions........................................................................................................ 26
K. Shutdown Instructions............................................................................................................... 28
SECTION IV
SER VICE/P AR TS INFORMA TION ........................................................................ 29
A. Service ..................................................................................................................................... 29
B. Parts ........................................................................................................................................ 29
SECTION V
W ARRANTY INFORMA TION ................................................................................ 30
A. Returning Warranty Cards......................................................................................................... 30
B. Warranty .................................................................................................................................. 30
C. Returning Warranty Parts .......................................................................................................... 30
SECTION VI
ROUTINE MAINTENANCE ...................................................................................32
A. Cleaning ................................................................................................................................... 32
B. Adjustments ............................................................................................................................. 33
C. Lubrication ............................................................................................................................... 33
SECTION VII
DATA LABEL INFORMATION............................................................................. 34
SECTION VIII
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS ................................................................36
SECTION IX
SENSOR ACTIVATED FIRE EXTINGUISHING (S.A.F.E.) SYSTEM ...........3 9
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 RESUL T.
A. Keep dryer area clear and free from combustible materials, gasoline, and other flammable vapors and liquids.
B. 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.
C. WHAT TO DO IF YOU SMELL GAS:
1. DO NOT try to light any appliance.
2. DO NOT touch any electrical switch.
3. DO NOT use any phone in your building.
4. Clear the room, building, or area of ALL occupants.
5. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’ s instructions.
6. If you cannot reach your gas supplier, call the fire department.
D. Installation and service must be performed by a qualified installer, service agency , or gas supplier .
E. Dryer(s) must be exhausted to the outdoors.
F. 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 RESUL T.
WARNING: DO NOT dry rags or articles coated or contaminated with gasoline, kerosene, oil, paint,
or wax.
EXPLOSION COULD RESUL T.
WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a
fire hazard.
113222-5 www.amdry.com 3
WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or
similarly textured materials. Drying in a heated basket (tumbler) may damage
plastics or rubber and may be a fire hazard.
G. A program should be established for the inspection and cleaning of lint in the heating unit area, exhaust
ductwork, and inside the dryer. The frequency of inspection and cleaning can best be determined from
experience at each location.
WARNING: The collection of lint in the burner area and exhaust ductwork can create a potential fire
hazard.
H. 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 dryer properly will VOID THE WARRANTY.
I. UNDER NO CIRCUMSTANCES should the dryer door switch, lint door switch, or heat safety circuit
ever be disabled.
W ARNING: PERSONAL INJUR Y OR FIRE COULD RESULT should the dryer door switch,
lint door switch, or heat safety circuit ever be disabled.
J. This dryer is not to be used in the presence of dry cleaning solvents or fumes.
K. 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.
CAUTION: Label ALL wires prior to disconnection when servicing controls. W iring errors cause
improper and dangerous operation. Verify proper operation after servicing.
L. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE
DRYER.
M. For safety, proper operation, and optimum performance, the dryer must not be operated with a load less
than sixty-six percent (66%), 13 lb (5.89 kg) of its rated capacity .
W ARNING: YOU MUST DISCONNECT AND LOCK OUT THE ELECTRIC SUPPL Y
AND THE GAS SUPPL Y 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) ST ANDARDS.
IMPORTANT : Dryer must be installed in a location/environment, which the ambient
temperature remains between 40º F (4.44º C) and 130º F (54.44º C).
4 American Dryer Corp. 113222-5
SECTION II
SPECIFICATIONS
MAXIMUM CAPACITY (DRY WEIGHT) 20 lb
TUMBLER DIAMETER 27-1/4”
TUMBLER DEPTH 24”
TUMBLER VOLUME 8. 10 c u ft
TUMBLER/DRIVE MO TO R 1/ 2 h p
BLOWER/FAN MOTOR N / A
DOOR OP E NING (DIAMETER) 2 1-1/ 2”
DOOR SILL HEIGHT 28-1/3”
WATER CONN ECTION* 3/4” F.N.P.T.
DRYERS PER 20 ’/4 0’ CONTAINER 1 4 / 30
DRYERS PER 48 ’/5 3’ TRUCK 4 2 / 47
VOLTAGE AVAILABLE 120-480V 1,3ø 2,3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 42 6 lb
APPROXIMATE SHIPPING WE IGHT 46 1 l b
kcal/hr
15,500
17,200
20,600
60 Hz
50 Hz
60 Hz
50 Hz
60 Hz
50 Hz
400 cfm
333 cfm
400 cfm
333 cfm
N / A
AIRFLOW
HEAT INPUT 60,000 Btu/hr
EXHAUS T CONNECTION (DIAMETER) 6”
COMPRESSED A IR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNECTION 1/2” M .N. P.T.
VOLTAGE AVAILABLE 208-480V 1,3ø 2,3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 42 6 lb
APPROXIMATE SHIPPING WE IGHT 46 1 l b
AIRFLOW
EXHAUS T CONNECTION (DIAMETER) 6”
COMPRESSED A IR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
Electric Gas
kW Btu/hr
18 61,400
20 68,200
24 81,900
VOLTAGE AVAILABLE
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WE IGHT
AIRFLOW
STEAM C ONSUMPTION
OPERATING STEAM PRESSURE
EXHAUS T CONNECTION (DIAMETER)
Steam
COMPRESSED A IR CONNECTION
COMPRESSED AIR VOLUME
BOILER HORSEPOWER (NORMAL LOAD)
SUPPLY CONNE CTION
RETURN CONNECTION
Shaded areas are stated in metric equivalents 10/04/06
* Water supply must be 40 psi +/- 20 psi (2.75 bar +/- 1.37 bar) for fire suppression system to operate properly.
OVEN SIZE
9.07 kg
69.22 cm
60.96 cm
229.37 L
0.37 kW
54.61 cm
71.91 cm
193.23 kg
209.11 kg
11.33 cmm
9.44 cmm
15,120 kcal/hr
15.24 cm
193.23 kg
209.11 kg
11.33 cmm
9.44 cmm
15.24 cm
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
113222-5 www.amdry.com 5
Specifications
NOTE: ADC reserves the right to make changes in specifications at any time without notice or
obligation.
6 American Dryer Corp. 113222-5
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 S tandards: 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 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. UNPACKING/SETTING UP
Remove protective shipping material (i.e., plastic wrap, and/or optional shipping box) from dryer.
The dryer can be moved to its final location while still attached to the skid or with the skid removed. T o 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. Once the bolts are removed, slide
the dryer off the skid.
With the skid removed, to make it easier to slide the dryer into its final position, slightly lower
leveling legs, so that the dryer will slide on the legs instead of the base frame. The dryer is equipped with four (4)
leveling legs, one (1) at each corner of the dryer base. Two (2) are located at the rear of the dryer base, and two
(2) are located in the lint chamber.
T o increase bearing life and improve efficiency, the dryer should be tilted slightly to the rear .
ALL four (4)
B. LOCATION OF THE DRYER
Before installing the dryer, be sure the location conforms to local codes and ordinances. In the absence of such
codes or ordinances the location must conform with the National Fuel Gas Code ANSI.Z223.1 LATEST EDITION,
or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural
Gas) or CAN/CGA-B149.2-M91 (L.P . Gas) or LATEST EDITION (for General Installation and Gas Plumbing).
1. The dryer must be installed on a sound level floor capable of supporting its weight. Carpeting must be
removed from the floor area that the dryer is to rest on.
IMPORTANT: “The dryer must be installed on noncombustible floors only .”
2. The dryer must not be installed or stored in an area where it will be exposed to water and/or weather.
3. The dryer is for use in noncombustible locations.
4. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply
Requirements in
5. Clearance provisions must be made from noncombustible construction as noted in this manual (refer to
Dryer Enclosure Requirements in
113222-5 www.amdry.com 7
Section D).
Section C).
6. Provisions must be made for adequate clearances for servicing and for operation as noted in this manual
(refer to Dryer Enclosure Requirements in
7. Dryer must be exhausted to the outdoors in an area where correct exhaust venting can be achieved as
noted in this manual (refer to Exhaust Requirements in
8. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual
(refer to Exhaust Requirements in
Section E).
Section C).
Section E).
IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary.
9. The dryer must be installed with a proper exhaust duct connection to the outside.
10. The dryer must be installed with provisions for adequate combustion and make-up air supply.
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 40º F (4.44º C) and 130º F (54.44º C).
C. DR YER ENCLOSURE REQUIREMENTS
Bulkheads and partitions should 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 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.
NOTE: Allowances must be made for opening the control door .
IMPORTANT: If the dryer is installed in a closet type enclosure there must be no other fuel burning
appliance installed in the same closet.
Dryers may be positioned sidewall to sidewall. However, a 1/16” (1.5875 mm) minimum allowance must be
made for 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 below for details.
X = 12-inch (30.48 cm) minimum, 24-inches (60.96 cm) is suggested for ease of maintenance.
8 American Dryer Corp. 113222-5
NOTE: Air considerations are important for proper and efficient operation.
D. FRESH AIR SUPPLY REQUIREMENTS
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 400 cfm (cubic feet per minute)
(11.3 cmm [cubic meters per minutes]) must be supplied to each gas dryer . As a general rule, an unrestricted air
entrance from the outdoors (atmosphere) of a minimum of 1 square foot (0.093 square meters) is required for
each dryer. If registers or louvers are installed over the openings, then the area must be increased. It
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 the dryers. The
dryer must be installed with provisions for adequate combustion and make-up air supply.
EXAMPLE: For a bank of eight (8) dryers, two (2) unrestricted openings measuring 2 feet by 2 feet
(0.61 meters by 0.61 meters) are acceptable.
is not
IMPORTANT: Make-up air openings should not be located in an area directly near where exhaust
vents exit the building.
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.
113222-5 www.amdry.com 9
E. EXHAUST REQUIREMENTS
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-limit thermostats.
(Refer to the illustrations on
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
CREA TE A POTENTIAL FIRE HAZARD.
When possible, it is desirable to provide a separate exhaust air duct for each dryer. The duct should go as directly
as possible to the outside air. Avoid sharp 90º right-angle turns in ducting; use 30º or 45º angles instead. The
radius of the elbows should preferably be 1-1/2 times the diameter of the duct. To protect the outside end of
the duct from the weather, it may be bent downwards as indicated on page 11 and page 12. Leave at least twice
the diameter of the duct as clearance between the duct opening and the nearest obstruction. If the exhaust duct
goes through the roof, it may be protected from the weather by using a 180º turn to point the opening down. Allow
at least twice the diameter of the duct as clearance from the nearest obstruction.
DO NOT use screens, louvers, or caps on the outside opening of the exhaust ductwork. The ducting should be
smooth inside with no projections from sheet metal screws or other obstructions, which will collect lint. Additionally ,
inspection doors should be installed at strategic points in the exhaust ductwork for periodic inspection and
cleaning.
page 11 and page 12 for details.) The dryer must be installed with a proper exhaust
Inadequate exhaust facilities may cause high temperature limit switches or airflow switches to shut off the
dryers. DO NOT disable the switches, which are provided for your safety. Instead, investigate the exhaust
ducting. Any obstruction or air friction due to numerous elbows/fittings in the ducting will slow the passage of air
through the system with resulting inefficiency and potential fire hazard.
IMPORTANT: Exhaust back pressure measured by a manometer at the dryer’s exhaust duct area
must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column
(W.C.).
NOTE: When the exhaust ductwork passes through a wall, ceiling, or roof made of combustible
materials, the opening must be 2-inches (5.08 cm) larger than the duct (all the way around).
The duct must be centered within this opening.
IMPORTANT: The dryer exhaust duct must not be connected to any gas vent, chimney , wall, ceiling,
or concealing space of a building.
IMPORTANT: It is recommended that exhaust or booster fans not be used in the exhaust ductwork
system.
NOTE: As per the National Fuel Gas Code, “Exhaust ducts for type 2 clothes dryers shall be
constructed of sheet metal or other noncombustible material. Such ducts shall be equivalent in
strength and corrosion resistance to ducts made of galvanized sheet steel not less than 26
gauge (0.0195-inches [0.50 mm]) thick.”
10 American Dryer Corp. 113222-5
SINGLE DRYER VENTING
IMPORTANT: A minimum exhaust duct size of 6-inches (15.24 cm) must be used.
For a 6-inch (15.24 cm) horizontal run where a maximum of one (1) elbow is used (refer to the illustration
below), the ductwork from the dryer outlet must not exceed 8 feet (2.44 meters).
If the length of the duct run or quantity of elbows used exceeds the above noted specifications, the
cross-sectional area of the ductwork must be increased in proportion to the number of elbows or duct run added.
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 noted in
this manual, a professional heating, ventilating, and air-conditioning (HVAC) firm
should be consulted for proper venting information.
When single 6-inch (15.24 cm) venting is used, for a horizontal run, the ductwork from the dryer to the outside
outlet cannot exceed 8 feet (2.44 meters) in total length. This calculation of 8 feet (2.44 meters) compensates
or allows for the use of a maximum of one (1) elbow (which is the outside outlet protection). Refer to the
illustration above.
113222-5 www.amdry.com 11
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