MAXIDRY AD-30V User manual

AD-30V Installation Manual
Phase 7 / Dual Timer / S.A.F.E. System
ADC Part No. 113229-19
WARNING:Foryoursafetytheinformation
in this manual must be followed to
minimize the risk of fire or explosion and
to prevent property damage, personal
injuryordeath.
— Do not store or use gasoline or other
flammable vapors and liquids in the
vicinityofthis or any otherappliance.
— WHATTODO IFYOUSMELLGAS:
●Donottry to lightanyappliance.
●Donottouchanyelectricalswitch;
donotuseanyphoneinyour
building.
●Clearthe room, building or area of
alloccupants.
●Immediatelycallyourgassupplier
froma neighbor’sphone. Follow
thegassupplier’sinstructions.
●Ifyoucannotreachyour gas
supplier, call thefiredepartment.
— Installation and service must be
performedbyaqualifiedinstaller,service
agencyorthe gas supplier.
AVERTISSEMENT:Assurez-vousdebien
suivrelesinstructionsdonnéesdanscette
noticepourréduire au minimum lerisque
d’incendie ou d’explosion ou pour éviter
toutdommagematériel,touteblessureou
lamort.
—Ne pas entreposer ni utiliser d’essence
nid’autresvapeurs ou liquides
inflammablesà proximité decet
appareilou de toutautre appareil.
—QUEFAIRE SI VOUSSENTEZUNE
ODEURDE GAZ:
●Nepas tenter d’allumerd’appareils.
●Netouchezàaucuninterrupteur. Ne
pasvous servir destéléphones se
trouvantdanslebâtiment.
●Évacuezla pièce, lebâtiment ou la
zone.
●Appelezimmédiatementvotre
fournisseurdegazdepuis un voisin.
Suivezlesinstructionsdufournisseur.
●Sivousnepouvez rejoindre le
fournisseurdegaz, appelez le service
desincendies.
—L’installation et l’entretien doivent être
assurés par un installateur ou un
service d’entretien qualifié ou par le
fournisseurdegaz.
American Dryer Corporation
88CurrantRoad
FallRiverMA02720-4781USA
Telephone:[phone] / Fax:[phone]
e-mail:[e-mail]
www.adclaundry.com

2 American Dryer Corp. 113229-19
“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
instructionsmustbe posted inaprominentlocation near thedryer.
FOR YOUR SAFETY
Do not store or use gasoline
orotherflammablevapors
andliquidsin the vicinityof
thisoranyother appliance.
POUR VOTRE SÉCURITÉ
Ne pas entreposer ni utiliser d’essence
nid’autresvapeurs ou liquides
inflammablesà proximité decet
appareilou de toutautre appareil.
Wehavetriedto make this manual as complete as possible andhopeyouwillfindituseful. Themanufacturer 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:
DATEOFPURCHASE ______________________________________________________MODELNO. _________________
RESELLER’S NAME __________________________________________________________________________________
SERIAL NUMBER(S) __________________________________________________________________________________
____________________________________________________________________________________________________
____________________________________________________________________________________________________
Replacement parts can be obtained from your reseller or theADC factory. When ordering replacement parts from the
factory, you can FAX your order to ADC at [phone] or telephone your order directly to the ADC Parts
Departmentat+1(508) 678-9000. Pleasespecifythedryermodel numberandserialnumberinadditiontothedescription
and part number, so that your order is processed accurately and promptly.
These instructions are only valid if the following country code is on the appliance… If this code is not present on the
appliance,it is necessary toreferto the technical instructionswhich will provide the necessaryinformation concerning
the modification of the appliance to the condition of use for the country.
In accordance with EN ISO 3166-1, the names of countries shall be represented by the following codes:
GB United Kingdom
IE Ireland
Retain This Manual in a Safe Place for Future Reference
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.
AD-30V

113229-19 www.adclaundry.com 3
List of Acronyms _____________________
D.M.S. Drill Measurement Size
DSI Direct Spark Ignition
HVAC Heating, Ventilating, and Air-Conditioning
in WC Inches of Water Column
L.C.D. Liquid Crystal Display
L.E.D. Light Emitting Diode
L.P. Liquid Propane
OSHA Occupational Safety
and Health Administration
R.M.A. Return Material Authorization
S.A.F.E. Sensor Activated Fire Extinguishing
UL Underwriters Laboratory
Table of Contents ______________
IMPORTANT
You must disconnect and lockout the electric supply and the
gas supply or the steam supply before any covers or guards
are removed from the machine to allow access for cleaning,
adjusting,installation,or testing ofanyequipment per OSHA
standards.
Please observe all safety precautions displayed on the
equipmentand/orspecifiedinthe installationmanual included
with the dryer.
Beforeinstallation, checkthat thelocaldistributionconditions,
natureof gasand pressure,andadjustment ofthe appliances
are compatible.
CAUTION
Dryer(s) should never be left unattended while in operation.
When discarding or storing your old clothes dryer,
remove the door.
Lorsque vous entreposez ou mettez votre sécheuse
au rebut, enlevez-en la porte.
“Caution:Label allwirespriortodisconnection whenservicing
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
etdangereux.»
WARNING
Childrenshould notbe allowedto playon ornear thedryer(s).
Children should be supervised if near dryer(s) in operation.
Under no circumstances should the dryer door switch(es),
lint door/drawer switch(es), or heat safety circuit(s) ever be
disabled.
Do not modify this appliance.
Thedryermustneverbe operatedwith anyofthe backguards
or service panels removed. Personal injury or fire could
result.
Thedryer mustnever beoperated withoutthelint filter/screen
in place, even if an external lint collection system is used.
If the hi-limit switch trips, a service call is required to
investigate the reason and resolve the issue.
FOR YOUR SAFETY
Do not dry mop heads in the dryer. Do not use dryer in
the presence of dry cleaning fumes.
The dryers must not be installed or stored in an area where
it will be exposed to water and/or weather.
Thewiringdiagram for thedryeris located behindthecontrol
panel.
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.
In the State of Massachusetts, the following
installation instructions apply:
■Installations and repairs must be
performed by a qualified or licensed
contractor, plumber, or gasfitter qualified or
licensed by the State of Massachusetts.
■If using a ball valve, it shall be a T-handle
type.
■A flexible gas connector, when used, must
not exceed 3 feet.
!WARNING
Safety Precautions ....................................................4
Specifications .............................................................5
Installation Procedures............................................7
Unpacking / Setting Up...............................................7
Location Requirements ..............................................7
Dryer Enclosure Requirements .................................7
Fresh Air Supply Requirements ................................8
Exhaust Requirements...............................................8
Electrical Information................................................10
Gas Information........................................................14
Steam Information ....................................................15
Preparation For Operation / Start-Up ......................18
Preoperational Test ..................................................18
Preoperational Instructions .....................................19
Shutdown Instructions ............................................20
Service / Parts Information ...................................20
Service .....................................................................20
Parts..........................................................................20
Warranty Information..............................................20
Returning Warranty Cards ......................................20
Warranty ..................................................................20
Returning Warranty Parts .......................................21
Routine Maintenance ..............................................21
Cleaning ....................................................................21
Adjustments .............................................................22
Lubrication................................................................22
Data Label Information ...........................................23
Procedure for Functional Check
of Replacement Components ..............................24
Manual Reset Burner Hi-Limit Instructions ......25
S.A.F.E. System .........................................................26
Non-Coin Programming .........................................30
Coin Programming ..................................................31

4 American Dryer Corp. 113229-19
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.
The dryer must never be operated with any of the
back guards, outer tops, or service panels removed.
Personal injury or fire could result.
Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.
Do not spray aerosols in the vicinity of this appliance while
it is in operation.
Purchaser and 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.
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 gas supplier.
Dryers must be exhausted to the outdoors.
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, industrial chemicals, or “all
purpose” cleaner. Explosion could result.
Do not dry rags or articles coated or contaminated
with gasoline, kerosene, oil, paint, or wax. Explosion
could result.
Do not dry mop heads. Contamination by wax or
flammable solvents will create a fire hazard.
Do not use heat for drying articles that contain plastic,
foam, sponge rubber, or similarly textured rubber
materials. Drying in a heated tumbler may damage
plastics or rubber and may be a fire hazard.
The possible presence of residual quantities of aggressive
or decomposed chemicals in the load may produce damage
to the machine and harmful fumes.
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.
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.
Under no circumstances should the dryer door switch, lint
door switch, or heat safety circuit ever be disabled.
!WARNING
Personal injury or fire could result should the dryer
door switch, lint door switch, or heat safety circuit
ever be disabled.
This dryer is not to be used in the presence of dry cleaning
solvents or fumes.
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.
Read and follow all caution and direction labels attached to
the dryer.
For safety, proper operation, and optimum performance, the
dryer must not be operated with a load less than sixty-six
percent, 19 lb (8.61 kg) of its rated capacity.
!WARNING
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 standards.
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).
CE ONLY
IMPORTANT: This appliance must only be installed and
operated in the country of destination indicated on the
dryer’s data plate. If the appliance is to be installed and
operated in a country other than the one indicated on the
data plate, a data plate amendment must be obtained
from American Dryer Corporation.
IEC335 applies.

113229-19 www.adclaundry.com 5
Specifications _____________________________________________________________________
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RETEMAIDRELBMUT”4/3-23 mc2.38
HTPEDRELBMUT”8/5-52 mc1.56
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ROTOMEVIRD/RELBMUT
gnisreveR/gnisreveR-noN ph2/1/ph2/1 *Wk373.0/Wk373.0
ROTOMNAF/REWOLB
gnisreveR/gnisreveR-noN ph2/1/ph— *Wk373.0/Wk—
)RETEMAID(GNINEPOROOD”2/1-12 mc16.45
THGIEHLLISROOD”8/1-33 mc51.48
NOITCENNOCRETAW HN5.11-4/3
)aciremAhtroN(
.T.P.S.B”4/3 )aciremAhtroNedistuO(
RENIATNOC’04/’02REPSREYRD 62/21
KCURT’35/’84REPSREYRD 23/03
ELBALIAVAEGATLOV zH06/05w4,3,2ø3,1V084-021
THGIEWTENETAMIXORPPAbl435 gk242
THGIEWGNIPPIHSETAMIXORPPAbl175 gk952
WOLFRIA zH06 mfc064 mmc31
zH05 mfc383 mmc58.01
TUPNITAEHrh/utB000,001 rh/lack002,52
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WOLFRIA zH06 mfc064 mmc31
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42009,18 006,02
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THGIEWTENETAMIXORPPAbl395 gk962
THGIEWGNIPPIHSETAMIXORPPAbl136 gk682
WOLFRIA zH06 mfc064 mmc31
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ERUSSERPMAETSGNITAREPOxamisp521 rab6.8
)RETEMAID(NOITCENNOCTSUAHXE”8mc23.02
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NOITCENNOCYLPPUS .T.P.N.F”1
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GAS
ELECTRIC
STEAM**
Shaded areas are stated in metric equivalents 1/5/04
* Reversing dryer available with 3-phase (3ø) 1/2 hp (0.373 kW) motor standard.
** Specify air-operated or electromechanical steam damper system. Air-operated steam damper system must be provided with
clean, dry and regulated 80 psi ± 10 psi (5.51 bar ± 0.68 bar) air supply.
NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.

6 American Dryer Corp. 113229-19
Specifications _____________________________________________________________________
NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.

113229-19 www.adclaundry.com 7
Installation Procedures ______________
Installation should be performed by competent technicians
in accordance with local and state codes. In the absence of
these codes, the installation must conform to applicable
American National Standards: ANSI Z223.1-LATEST
EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-
LATEST EDITION (National Electrical Code) or in Canada,
the installation must conform to applicable Canadian
Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/
CGA-B149.2-M91(L.P. Gas)or LATESTEDITION (forGeneral
Installation and Gas Plumbing) or Canadian Electrical
Codes Parts 1 & 2 CSAC22.1-1990 or LATEST EDITION (for
Electrical Connections).
Unpacking / Setting Up _______________
Remove protective shipping material (i.e., plastic wrap and
optional shipping box) from dryer.
IMPORTANT: Dryer must be transported and handled in
an upright position at all times.
The dryer can be moved to its final location while still
attached to the skid or with the skid removed. To unskid the
dryer, locate and remove the four bolts securing the base of
the dryer to the wooden skid. Two are at the rear base
(remove the back panel for access), and two are located in
the bottom of the lint chamber. To remove the two bolts
located in the lint chamber area, remove the lint door.
With the skid removed, to make it easier to slide the dryer
into its final position, slightly lower all four leveling legs, so
that the dryer will slide on the legs instead of the base frame.
Leveling Dryer
The dryer is equipped with four leveling legs, one at each
corner of the base. Two are located at the rear of the dryer
base, and two are located in the lint chamber (coop). To
increase bearing life and improve efficiency, the dryer should
be tilted slightly to the rear.
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
FuelGasCodeANSI.Z223.1LATESTEDITION, orin 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 LATESTEDITION (forGeneral
Installation and Gas Plumbing).
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.”
The dryer must not be installed or stored in an area where it
will be exposed to water and/or weather.
The dryer is for use in noncombustible locations.
Provisions for adequate air supply must be provided as
noted in this manual (refer to Fresh Air Supply
Requirements).
Clearance provisions must be made from noncombustible
construction as noted in this manual (refer to Dryer
Enclosure Requirements).
Provisions must be made for adequate clearances for
servicing and for operation as noted in this manual (refer to
Dryer Enclosure Requirements).
Dryer must be exhausted to the outdoors as noted in this
manual (refer to Exhaust Requirements).
Dryer must be located in an area where correct exhaust
venting can be achieved as noted in this manual (refer to
Exhaust Requirements).
IMPORTANT: Dryer should be located where a minimum
amount of exhaust duct will be necessary.
The dryer must be installed with a proper exhaust duct
connection to the outside.
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).
Dryer Enclosure Requirements ______
Bulkheads and partitions should be made of
noncombustible materials and must be located a minimum
of 12-inches (30.48 cm) above the dryer’s outer top;
18-inches (45.72 cm) for steam dryers, except along the
front of the dryer, which may be closed if desired.
NOTE: Allowances must be made for opening the control
door.
With the exception of the floor, clearances shown are for
combustible construction.
X = 12-inch (30.48 cm) minimum, 24-inches (60.96 cm) is suggested for ease
of maintenance.
* 1-inch (2.54 cm) maximum for electric dryers.
** 18-inch (45.72 cm) minimum for steam dryers.

8 American Dryer Corp. 113229-19
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, and shutdown of the burner by the
airflow (sail) switch, burner hi-limits, or lint chamber hi-limit
protector thermostat. The dryer must be installed with a
proper exhaust duct connection to the outside.
When possible, it is suggested to provide a separate (single)
exhaust duct for each dryer.
The design of the flue system shall be such that any
condensate formed when operating the appliance from cold
shall either be retained and subsequently re-evaporated or
discharged.
CAUTION: This dryer produces combustible lint and
must be exhausted to the outdoors.
Improperly sized or installed exhaust ductwork can
create a potential fire hazard.
IMPORTANT: Exhaust back pressure measured by a
manometer/magnehelic in the exhaust duct must be no
less than 0 and must not exceed 0.3 in WC (0.74 mb).
NOTE: It is recommended that exhaust or booster fans
not be used in the exhaust ductwork system except where
necessary to maintain exhaust back pressure (in the
exhaust duct) between zero and 0.3 inch water column.
Where employed, booster fans must not activate the dryer
airflow proving switch (sail switch) when the dryer is not in
operation.
The exhaust ductwork should be laid out in such a way that
the ductwork travels as directly as possible to the outdoors
with as few turns as possible. The shape of the ductwork is
not critical as long as the minimum cross section area is
provided. Single or independent dryer venting is
recommended.
It is suggested that the use of 90° turns be avoided; use 30°
or 45° angles instead.
The ductwork should be smooth inside with no projections
from sheet metal screws or other obstructions, which will
collect lint. When adding ducts, the ducts to be added should
overlap the duct to which it is connected. All ductwork joints
must be taped to prevent moisture and lint from escaping
into the building. Additionally, inspection doors should be
installed at strategic points in the exhaust ductwork for
periodic inspection and cleaning.
IMPORTANT: When connecting ductwork to the dryer
exhaust duct, be sure that when screws are used they do
not restrict the operation (both opening and closing) of the
damper.
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.
NOTE: Air considerations are important for proper and
efficient operation.
Dryers may be positioned sidewall to sidewall. However, a
1/16” (1.59 mm) minimum allowance must be made for
opening and closing of the control 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 on previous page for details.
Fresh Air Supply Requirements ______
This appliance may only be installed in a room that meets
the appropriate ventilation requirements specified in the
national installation regulations.
The 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. As
a general rule, an unrestricted air entrance from the outdoors
(atmosphere) of a minimum of 1-1/2 square feet (0.14
square meters) is required for each dryer. If registers or
louvers are installed over the openings, then the area must
be increased. It is not necessary to have separate
make-up air openings for each dryer. Common make-up
air openings are acceptable. However, they must be set up
in such a manner that the make-up air is distributed equally
to the dryers. The dryer must be installed with provisions
for adequate combustion and make-up air supply.
Example: For a bank of eight dryers, two unrestricted
openings measuring 3 feet by 2 feet (0.914 meters by 0.61
meters) are acceptable.
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.

113229-19 www.adclaundry.com 9
To protect the outside end of the horizontal ductwork from
the weather, a 90° elbow bent downward should be installed
where the exhaust exits the building. If the ductwork travels
vertically up through the roof, it should be protected from the
weather by using a 180° turn to point the opening downward.
In either case, allow at least twice the diameter of the duct
between the duct opening and the nearest obstruction (i.e.,
roof or ground level).
IMPORTANT: Do not use screens, louvers, or caps on the
outside opening of the exhaust ductwork.
Exhaust back pressure measured by a manometer/
magnehelic in the exhaust duct must be no less than 0
and must not exceed 0.3 in WC (0.74 mb).
NOTE: It is recommended that exhaust or booster fans
not be used in the exhaust ductwork system except where
necessary to maintain exhaust back pressure (in the
exhaust duct) between zero and 0.3 inch water column.
Where employed, booster fans must not activate the dryer
airflow proving switch (sail switch) when the dryer is not in
operation.
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 gauges
(0.0195-inches [0.50 mm]) thick.”
Single Dryer Venting
Horizontal Venting
When a single 8-inch (20.32 cm) horizontal vent is used,
the ductwork to the outlet cannot exceed 68 feet (20.7
meters), refer to Illus. A below. This calculation of 68 feet
(20.7 meters) compensates or allows for the use of a
maximum of only one elbow, (which is the outside outlet
protection).
Illus. A
Vertical Venting
When vertical single 8-inch (20.32 cm) venting is used (refer
to Illus. B below), the ductwork from the dryer to the outside
outlet cannot exceed 55 feet (16.7 meters). This calculation
compensates for the use of a maximum of three elbows
including the two elbows creating the 180° (turned
downward) outside outlet.
Illus. B
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 duct can only be increased to an
extent. For extended ductwork runs, a professional HVAC
firm should be consulted for proper venting information.
Multiple Dryer (Common) Venting
If it is not feasible to provide separate exhaust ducts for
each dryer, ducts for individual dryers may be channeled
into a common main duct. Each dryer is provided with a
back draft damper. The individual ducts should enter the
bottom or side of the main duct at an angle not more than
45° in the direction of the airflow.
The main common duct may be any shape as long as the
minimum cross-sectional area is provided. The main duct
should be tapered with the diameter increasing before each
individual 8-inch (20.32 cm) duct is added (refer to Illus. C
for horizontal venting and Illus. D for vertical venting on the
following page).
IMPORTANT: No more than four dryers maximum should
be connected to one main common duct with a vertical
run.
NOTE: Distance between dryer single ducts being
connected to the main common duct must be a minimum
of 34-1/4” (87 cm) dryer width.
Ductwork should be laid out in such a manner where
allowances are made at rear area of the dryer for removal
of rear service panels or guards.

10 American Dryer Corp. 113229-19
The illustrations below show the minimum cross section area for
multiple dryer venting. These figures must be increased in
proportion if the main duct run from the last dryer to where it
exhausts has numerous elbows or is unusually long.
IMPORTANT: For extended ductwork runs, the cross section
area of the duct can only be increased to an extent. For
extended ductwork runs, a professional HVAC firm should be
consulted for proper venting information.
Refer below for Multiple Dryer Horizontal Venting and Vertical
Venting examples/illustrations.
Horizontal Venting
Illus. C
Vertical Venting
Illus. D
!WARNING
Dryer must never be operated without the lint
filter/screen in place, even if an external lint
collection system is used.
IMPORTANT: It is recommended that exhaust or
booster fans not be used in the exhaust ductwork
system.
Electrical Information ____________
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
CSAC22.1-1990 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
could 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.
An individual ground circuit must be provided to
each dryer, do not daisy chain.
Component failure due to improper voltage
application will void the warranty.
The manufacturer reserves the right to make
changes in specifications at any time without notice
or obligation.
IMPORTANT: A separate protected circuit must be
provided to each dryer.
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.
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
impropervoltage connectionswill automatically
void the warranty.