American Dryer Corp. AD-236 User manual

AD-236 Installation Manual
Phase 5 / Gas DSI
ADC Part No. 113047-21
AVERTISSEMENT:Assurez-vousdebien
suivrelesinstructionsdonnéesdanscette
noticepour réduireau minimumle risque
d’incendie ou d’explosion ou pour éviter
toutdommagematériel,touteblessureou
lamort.
—Ne pas entreposer ni utiliser d’essence
nid’autres vapeursou liquides
inflammablesà proximité decet
appareilou de toutautre appareil.
—QUE FAIRESIVOUSSENTEZ UNE
ODEURDE GAZ:
●Nepas tenterd’allumerd’appareils.
●Netouchezà aucuninterrupteur. Ne
pasvous servirdestéléphones se
trouvantdansle bâtiment.
●Évacuezla pièce,lebâtiment oula
zone.
●Appelezimmédiatement votre
fournisseurde gazdepuisunvoisin.
Suivezlesinstructionsdufournisseur.
●Sivous nepouvez rejoindrele
fournisseurde gaz,appelez leservice
desincendies.
—L’installation et l’entretien doivent être
assurés par un installateur ou un
service d’entretien qualifié ou par le
fournisseurdegaz.
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
vicinityof thisor anyother appliance.
— WHATTODO IFYOUSMELLGAS:
●Donot tryto lightany appliance.
●Donottouchanyelectrical switch;
donotuseanyphone inyour
building.
●Cleartheroom, building or areaof
alloccupants.
●Immediatelycallyourgassupplier
froma neighbor’sphone. Follow
thegas supplier’sinstructions.
●Ifyoucannotreachyourgas
supplier, callthe firedepartment.
— Installation and service must be
performedbyaqualifiedinstaller,service
agencyor thegas supplier.
American Dryer Corporation
88CurrantRoad
FallRiverMA02720-4781USA
Telephone:[phone] / Fax: [phone]
e-mail:[e-mail]
www.adclaundry.com

Retain This Manual In ASafe 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.
“IMPORTANTNOTETOPURCHASER”
Informationmust beobtained from yourlocal gassupplier on
the instructions to be followed if the user smells gas. These
instructionsmustbepostedinaprominentlocationnearthedryer.
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:
DATEOFPURCHASE____________________________________________ MODELNO. ______________________________
RESELLER’SNAME ________________________________________________________________________________________
Serial Number(s) ________________________________________________________________________________________
________________________________________________________________________________________
________________________________________________________________________________________
Replacement parts can be obtained from your reseller or the ADCfactory. Whenordering replacement partsfrom the factory,
you can FAX your order to ADC at [phone] or telephone your order directly to the ADC Parts Department at (508)
678-9000. Pleasespecify the dryermodel numberand serialnumberin addition tothe descriptionand partnumber, sothat
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 to refer to the technical instructions which will provide the necessary information 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
AD-236 (Gas DSI)
POUR VOTRE SÉCURITÉ
Ne pas entreposer ni utiliser d’essence
nid’autres vapeursou liquides
inflammablesà proximité decet
appareilou de toutautre appareil.
FOR YOUR SAFETY
Do not store or use gasoline
orother flammablevapors
andliquids inthe vicinityof
thisor anyother appliance.

IMPORTANT
YOUMUSTDISCONNECTANDLOCKOUTTHEELECTRICSUPPLYANDTHEGAS
SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE
MACHINETOALLOWACCESSFORCLEANING,ADJUSTING,INSTALLATION,OR
TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health
Administration)STANDARDS.
WARNING
CHILDRENSHOULDNOTBEALLOWEDTOPLAYONORNEARTHEDRYER(S).
CHILDRENSHOULDBESUPERVISEDIFNEARDRYERSINOPERATION.
CAUTION
DRYERSSHOULDNEVERBELEFTUNATTENDEDWHILEINOPERATION.
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.
IntheStateofMassachusetts,thefollowinginstallationinstructionsapply:
■Installationsand repairsmustbeperformed by a qualified or licensed contractor,
plumber,orgasfitterqualifiedorlicensedbytheStateofMassachusetts.
■Ifusingaballvalve,itshallbeaT-handletype.
■Aflexiblegasconnector,whenused,mustnotexceed3feet.
“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. Deserreursdecâblage peuvent entraîner
unfonctionnement inadéquat et dangereux.»
!WARNING

IMPORTANT
PLEASEOBSERVEALLSAFETYPRECAUTIONSdisplayedontheequipmentand/or
specified in the installation manual included with the dryer.
Dryer mustnot be installed or stored in an area where it willbe exposed to wateror 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).
FORYOURSAFETY
DONOTDRYMOPHEADSINTHEDRYER.
DONOTUSEDRYERINTHEPRESENCEOFDRYCLEANINGFUMES.
WARNING
UNDER NO CIRCUMSTANCES should the dryer doorswitches, lint drawer switch,
or heat safety circuit ever be disabled.
Do not modify this appliance.
The dryer must never be operated with any of the back guards, outer tops, or service
panelsremoved. PERSONALINJURYORFIRECOULDRESULT.
DRYERMUSTNEVERBEOPERATEDWITHOUTTHELINTFILTER/SCREENIN
PLACE,EVENIFANEXTERNALLINTCOLLECTIONSYSTEMISUSED.
If the hi-limit switch trips, a service call is required to investigate the reason and
resolve the issue.

SECTION I
IMPORTANT INFORMATION ...............................................................................3
A. ReceivingandHandling ............................................................................................................... 3
B. SafetyPrecautions ...................................................................................................................... 4
SECTION II
SPECIFICATIONS.....................................................................................................6
A. Specifications ............................................................................................................................. 6
SECTION III
INSTALLATION PROCEDURES ........................................................................... 8
A. Unpacking/SettingUp ................................................................................................................. 8
B. LocationRequirements ............................................................................................................... 9
C. DryerEnclosureRequirements .................................................................................................. 10
D. FreshAirSupplyRequirements ................................................................................................. 10
E. ExhaustRequirements ............................................................................................................... 12
F. ElectricalInformation ................................................................................................................ 16
G. GasInformation ........................................................................................................................ 19
H. PreparationFor Operation/Start-Up ......................................................................................... 23
I. PreoperationalTest ................................................................................................................... 23
J. ShutdownInstructions............................................................................................................... 25
SECTION IV
OPERATING INSTRUCTIONS.............................................................................26
A. StartingTheDryer .................................................................................................................... 26
SECTION V
SERVICE/PARTS INFORMATION ......................................................................28
A. Service ..................................................................................................................................... 28
B. Parts ........................................................................................................................................ 28
SECTION VI
WARRANTY INFORMATION...............................................................................29
A. ReturningWarrantyCards......................................................................................................... 29
B. Warranty .................................................................................................................................. 29
C. ReturningWarrantyParts .......................................................................................................... 29
Table of Contents

SECTION VII
ROUTINE MAINTENANCE ..................................................................................31
A. Cleaning ................................................................................................................................... 31
B. Adjustments ............................................................................................................................. 32
C. Lubrication ............................................................................................................................... 32
SECTION VIII
DATA LABEL INFORMATION .............................................................................33
A. DataLabel ............................................................................................................................... 33
SECTION IX
TROUBLESHOOTING ...........................................................................................35
SECTION X
PROCEDURE FOR FUNCTIONAL CHECK
OF REPLACEMENT COMPONENTS................................................................40
SECTION XI
BURNER/BASKET (TUMBLER)
HI-LIMIT MANUAL RESET INSTRUCTIONS..................................................43

113047-21 www.adclaundry.com 3
SECTIONI
IMPORTANTINFORMATION
A. RECEIVINGAND HANDLING
The dryer is shipped in a protective stretch wrap cover with protective cardboard corners and top cover (or
optional box) as a means of preventing damage in transit. Upon delivery, the dryer and/or packaging, and
wooden skid should be visually inspected for shipping damage. If any damage whatsoever is noticed, inspect
further before delivering carrier leaves.
Dryers damaged in shipment:
1. ALL dryers should be inspected upon receipt and before they are signed for.
2. If there is suspected damage or actual damage, the trucker’s receipt should be so noted.
3. If the dryer is damaged beyond repair, it should be refused. Those dryers, which were not damaged in a
damaged shipment should be accepted, but the number received and the number refused must be noted
on the receipt.
4. If you determine that the dryer was damaged after the trucker has left your location, you should call the
delivering carrier’s freight terminal immediately and file a claim. The freight company considers this
concealed damage. This type of freight claim is very difficult to get paid and becomes extremely difficult
when more than a day or two passes after the freight was delivered. It is your responsibility to file freight
claims. Dryer/parts damaged in transit cannot be claimed under warranty.
5. Freight claims are the responsibility of the consignee, and ALL claims must be filed at the receiving end.
ADC assumes no responsibility for freight claims or damages.
6. If you need assistance in handling the situation, please contact the ADCTraffic Manager at [phone].
IMPORTANT: Thedryermustbe transportedand handledin an uprightposition atALLtimes.

4 American Dryer Corp. 113047-21
B. SAFETY PRECAUTIONS
WARNING: Foryoursafety,theinformationinthismanualmustbefollowed tominimizetheriskof
fireorexplosion orto preventpropertydamage, personalinjury,orlossof life.
WARNING: Thedryermust neverbe operated with anyofthebackguards, outer tops, or
servicepanelsremoved.PERSONALINJURYORFIRECOULD RESULT.
1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
2. DO NOT spray aerosols in the vicinity of this appliance while it is in operation.
3. 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.
4. WHAT TO DO IF YOU SMELL GAS...
a. DO NOT try to light any appliance.
b. DO NOT touch any electrical switch.
c. DO NOT use any phone in your building.
d. Clear the room, building, or area of ALLoccupants.
e. Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.
f. If you cannot reach your gas supplier, call the fire department.
5. Installation and service must be performed by a qualified installer, service agency, or gas supplier.
6. Dryer(s) must be exhausted to the outdoors.
7. 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: Dryonly waterwashed fabrics. DONOTdry articlesspotted orwashed in drycleaning
solvents,acombustibledetergent,industrialchemicals,or“allpurpose”cleaner.
EXPLOSIONCOULDRESULT.
WARNING: DONOT dry ragsor articlescoated orcontaminated withgasoline, kerosene,oil, paint,
orwax. EXPLOSION COULDRESULT.
WARNING: DONOTdrymop heads. Contaminationby waxorflammable solventswill createa
firehazard.
WARNING: DONOTuseheat fordrying articlesthat containplastic, foam,sponge rubber, or
similarlytexturedrubberlikematerials. Dryinginaheated basket(tumbler)maydamage
plasticsor rubberand maybe a firehazard.

113047-21 www.adclaundry.com 5
8. The possible presence of residual quantities of aggressive or decomposed chemicals in the load may produce
damage to the machine and harmful fumes.
9. A program shouldbeestablished 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: Thecollectionof lintinthe burnerareaand exhaustductworkcan createapotential fire
hazard.
10. For personal safety, the dryer mustbeelectrically grounded in accordance with local codes 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: Failureto doso willVOIDTHEWARRANTY.
11. UNDER NO CIRCUMSTANCES should the dryer door switches, lint drawer switch, or heat safety
circuit ever be disabled.
WARNING: PERSONALINJURYOR FIRECOULDRESULT.
12. This dryer is not to be used in the presence of dry cleaning solvents or fumes.
13. Remove articles from the dryer as soon as the drying cycle has been completed.
WARNING: Articlesleftin thedryerafterthe dryingandcoolingcycles havebeencompletedcan
createa firehazard.
14. READ AND FOLLOW ALL CAUTION AND DIRECTION LABELS ATTACHED TO THE
DRYER.
15. For safety, proper operation, and optimum performances, the dryer must not be operated with a load less
than sixty-six percent (66%), 40 lb (18.14 kg) of its rated capacity.
WARNING: YOUMUSTDISCONNECTANDLOCKOUTTHEELECTRICSUPPLYAND
THEGAS SUPPLYBEFOREANYCOVERS OR GUARDSARE REMOVED
FROMTHEMACHINETOALLOWACCESS FORCLEANING,
ADJUSTING,INSTALLATION, ORTESTINGOFANYEQUIPMENTPER
OSHA(Occupational SafetyandHealthAdministration)STANDARDS.
IMPORTANT: Dryer must beinstalledin alocation/environment,which theambient
temperatureremainsbetween 40° F(4.44°C) and 130°F(54.44°C).
CE ONLY
IMPORTANT: This appliancemustonlybeinstalled andoperatedinthecountry ofdestination
indicatedon thedryer’s dataplate. If theappliance isto be installedand operatedin a
countryother thanthe oneindicatedon thedata plate,a dataplateamendment must
beobtainedfromAmericanDryer Corporation.
IEC335 applies.

6 American Dryer Corp. 113047-21
SECTIONII
SPECIFICATIONS
A. SPECIFICATIONS
NOTE: ADCreservestherightto makechangesinspecifications atanytime withoutnoticeor
obligation.
MAXIMUM CAPACITY (DRY WEIGHT) PER POCKET 30 lb 13.6 kg
TUMBLER DIAMETER 27-1/4” 69.22 cm
TUMBLER DEPTH 30” 76.2 cm
TUMBLER VOLUME PER POCKET 10.1 cu ft 286 L
TUMBLER/DRIVE MOTOR PER POCKET 1/2 hp 0.373 kW
BLOWER/FAN MOTOR PER POCKET 1/2 hp 0.373 kW
DOOR OPENING (DIAMETER) 21-1/2” 54.61 cm
DOOR SILL HEIGHT TOP POCKET / BOTTOM POCKET 51-1/4” / 13-1/2” 130.2 cm / 34.3 cm
WATER CONNECTION N / A
DRYERS PER 20’/40’ CONTAINER 11 / 22
DRYERS PER 48’/53’ TRUCK 30 / 33
VOLTAGE AVAILABLE 120-240V 1,3ø 2,3w 50/60 Hz
APPROXIMATE NET WEIGHT 850 lb 385.5 kg
APPROXIMATE SHIPPING WEIGHT 900 lb 408.2 kg
AIRFLOW PER POCKET 60 Hz 400 cfm 11.33 cmm
50 Hz 333 cfm 9.44 cmm
HEAT INPUT PER POCKET 80,000 Btu/hr 20,160 kcal/hr
EXHAUST CONNECTION (DIAMETER) 8” 20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNECTION 3/4” M.N.P.T.
VOLTAGE AVAILABLE
N / A
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WEIGHT
AIRFLOW PER POCKET
EXHAUST CONNECTION (DIAMETER) PER POCKET
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
OVEN SIZE PER POCKET
kW Btu/hr kcal/hr
VOLTAGE AVAILABLE
N / A
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WEIGHT
AIRFLOW PER POCKET
STEAM CONSUMPTION PER POCKET
OPERATING STEAM PRESSURE
EXHAUST CONNECTION (DIAMETER) PER POCKET
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
BOILER HORSEPOWER (NORMAL LOAD) PER POCKET
SUPPLY CONNECTION PER POCKET
RETURN CONNECTION PER POCKET
GAS
Shaded areas are stated in metric equivalents 1/25/11
ELECTRICSTEAM

113047-21 www.adclaundry.com 7
SPECIFICATIONS
ADG-236 (GAS)
NOTE: ADCreservestherightto makechangesinspecifications atanytime withoutnoticeor
obligation.

8 American Dryer Corp. 113047-21
SECTIONIII
INSTALLATIONPROCEDURES
Installation should be performed by competent technicians in accordance with local and state codes. In the
absence of these codes, the installation mustconform to applicableAmerican National Standards:ANSI Z223.1-
LATEST EDITION (National Fuel Gas Code) orANSI/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 CSAC22.1-1990 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.
NOTE: Theaccess keysfor theservicedoors areincluded intheinformation packetshipped inthe
basket (tumbler). These keys shouldbe removed andput in asafe place, yet made
accessiblebecausethey willbe neededthroughoutvarious phasesintheinstallation ofthe
dryer.
Dryers are shipped with a coin box and coin box faceplate ONLY. The coin box lock is not included and
must be purchased elsewhere or the lock can be ordered as a parts order from the ADC Parts Department at
[phone].
The dryer can be moved to its final location while still attached to the skid or with the skid removed. To unskid
the dryer, locate and remove the four (4) bolts securing the base of the dryer to the wooden skid. Two (2) are
at the rear of the base and two (2) are located in the front. Once the bolts are removed, slide the dryer off of the
skid.
With the skid removed, to make it easier to slide the dryer into its final position, slightly lower ALL the 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. The hex head adjustment bolts for the two (2) front leveling legs
are located directly behind the lower access door and the rear two (2) adjustments are directly behind the lower
rear back (guard) panel.

113047-21 www.adclaundry.com 9
B. LOCATION REQUIREMENTS
Before installing the dryer, be sure the location conforms to local codes and ordinances. In the absence of such
codes or ordinances the location must conform with the National Fuel Gas Code ANSI.Z223.1 LATEST
EDITION, or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-
M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [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: “Thedryermustbeinstalledonnoncombustiblefloors only.”
2. The dryer must not be installed or stored in an area where it will be exposed to water and/or weather.
3. The dryer is for use in noncombustible locations.
4. Provisions for adequate air supply must be provided as noted in this manual (refer to Fresh Air Supply
Requirements in Section D).
5. Clearance provisions must be made
fromcombustible construction as noted
in this manual (refer to Dryer
Enclosure Requirements in Section
C). Even though a 12-inch (30.48 cm)
clearance is acceptable, it is
recommended that the rear of the dryer
bepositionedapproximately2feet(0.61
meters) away from the nearest
obstruction (i.e., wall) for ease of
installation, maintenance, and service.
(Refer to the illustration at right.)
6. Provisions must be made for adequate
clearances for servicing and for
operation as noted in this manual (refer
to Dryer Enclosure Requirements
in Section C).
7. Dryer must be exhausted to the
outdoors as noted in this manual (refer
to Exhaust Requirements in Section
E).
8. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual
(refer to Exhaust Requirements in Section E).
IMPORTANT: Dryershouldbelocatedwherea minimumamount ofexhaustduct willbe necessary.
9. The dryer must be installed with a proper exhaust duct connection to the outside.

10 American Dryer Corp. 113047-21
10. The dryer must be installed with provisions for adequate combustion and make-up air supply.
CAUTION: Thisdryer producescombustible lintand mustbeexhaustedto theoutdoors. Every 6
months,inspecttheexhaustductingand removeanylintbuildup.
IMPORTANT: Dryer must beinstalledin alocation/environment,which theambient
temperatureremainsbetween 40° F(4.44°C) and 130°F(54.44°C).
C. DRYER ENCLOSURE REQUIREMENTS
Bulkheads and partitions must be made of noncombustible materials and must be located a minimum of
12-inches (30.48 cm) above the dryer outer top, except along the front of the dryer which may be partially closed
in if desired.
NOTE: Allowancesmustbemade foropening thecontrol door.
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 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 on the previous page for details.
NOTE: Airconsiderationsareimportant forproperandefficient operation.
IMPORTANT: Even thoughaminimum ofonly12-inches(30.48 cm)isrequired, 18-inches(45.72
cm)or moreissuggested. The additionalclearance isadvantageous forease of
installationandservice.
IMPORTANT: When firesprinklersystems arelocatedabovethe dryers,aminimum of18-inches
(45.72cm) abovethe dryerconsole (module)is required. Dryersmay bepositioned
sidewalltosidewall,however, a1/16”(1.5875mm)minimumallowanceis required
betweendryers(or wall)forease ofinstallationand maintenance. Allowancesmust
bemade forthe openingand closingof thecontrol doorand thelintdoor.
D. FRESH AIR SUPPLYREQUIREMENTS
This appliance may only be installed in a room that meets the appropriate ventilation requirements specified in
the national installation regulations.
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.

113047-21 www.adclaundry.com 11
To compensate for the use of registers or louvers used over the openings, this make-up air must be increased by
approximately thirty-three percent (33%). Make-up air openings should not be located in an area directly near
where exhaust vents exit the building.
It is not necessary to have 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.
EXAMPLE: For a bank of eight (8) dryers, a total make-up air opening of 12 square feet (1.12 square meters)
is required. Two (2) unrestricted openings measuring 2 feet by 3 feet (6 square feet) (0.61 meters
by 0.92 meters [0.56 square meters]) are acceptable.
Allowances must be made for remote or constricting passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
IMPORTANT: Make-upairmustbeprovided froma sourcefreeof drycleaning solventfumes.
Make-upairthatiscontaminatedbydry cleaningsolventfumeswillresultin
irreparabledamage tothe motorsand otherdryercomponents.
NOTE: Componentfailureduetodrycleaning solventfumeswillVOIDTHEWARRANTY.
Air supply (make-up air) must be given careful consideration to assure proper performance of each dryer. An
unrestricted source of 800 cfm (cubic feet per minute) (22.66 cmm [cubic meters per minute]) 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 (0.41 square meters) is required for each dryer. The area must be enlarged if louvers or
registers cover the openings. The dryer must be installed with provisions for adequate combustion and
make-up air supply.

12 American Dryer Corp. 113047-21
E. EXHAUST REQUIREMENTS
Exhaust ductwork shouldbe 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,
andshutdownof the burner by the airflow (sail) switches, burner hi-limits,orbasket(tumbler)hi-limitthermostats.
The dryer must be installed with a proper exhaust duct connection to the outside.
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: Thisdryer producescombustible lintand mustbeexhausted tothe outdoors.
CAUTION: IMPROPERLYSIZEDORINSTALLEDEXHAUSTDUCTWORK CAN
CREATEAPOTENTIALFIREHAZARD.
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. When single dryer venting is used, the length of ductwork from the dryer to the
outside exhaust outlet must not exceed 20 feet (6.1 meters). In the case of multiple (common) dryer venting,
the distance from the last dryer to the outside exhaust outlet must not exceed 20 feet (6.1 meters). The shape
of the ductwork is not critical so long as the minimum cross-sectional area is provided.
1. Single DryerVenting
Where possible, it is suggested to provide a separate exhaust duct for each dryer. 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. It is suggested that the use of 90° turns be avoided; use 30° and/or 45° bends
instead. The radius of the elbows should preferably be 1-1/2 times the diameter of the duct. The shape
of the ductwork is not critical so long as the minimum cross-sectional area is provided.
IMPORTANT: Exhaust backpressuremeasuredby amanometer/magnehelicintheexhaust duct
mustbeno less than 0 and mustnotexceed0.3 in WC (0.74 mb) with both baskets
(tumblers)operating.
NOTE: Itis recommendedthatexhaust orbooster fansnot beused in theexhaust ductworksystem
exceptwhere necessarytomaintain exhaustback pressure(inthe exhaustduct) betweenzero
and0.3 inchwatercolumn withboth baskets(tumblers) operating. Whereemployed,booster
fansmustnot activatethedryer airflowprovingswitch(sail switch)whenthe dryerisnotin
operation.
It is suggested that the ductwork from each dryer must not exceed 20 feet (6.1 meters) with no more than
two (2) elbows. If the ductwork exceeds 20 feet (6.1 meters) or has numerous elbows, the cross-sectional
area of the ductwork must be increased in proportion to the length or number of elbows in it.
IMPORTANT: For extended ductworkruns, thecross-sectional areaof the ductworkcan onlybe
increasedto anextent. Maximumproportional ductworkruns cannotexceed20feet
(6.1meters)more thantheoriginal limitationsof20 feet(6.1meters) withtwo(2)
elbows. Whentheductworkapproaches themaximumlimitsas notedinthismanual,
aprofessionalheating,venting,and airconditioning(HVAC)firmshouldbeconsulted
forproperventinginformation.

113047-21 www.adclaundry.com 13
NOTE: Asper theNational FuelGas Code, “Exhaustducts forType2 clothesdryers shall be
constructedofsheetmetal orothernoncombustiblematerial. Such ductsshallbeequivalent in
strengthand corrosionresistanceto ductsmade ofgalvanized sheetsteelnot lessthan 0.0195
inches(26gauge [0.50mm])thick.”
ALL ductwork shouldbe 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: Whentheexhaust ductworkpassesthrough awall,ceiling,or roofmadeof combustible
materials,the openingmustbe2-inches(5.08 cm)larger thanthe duct(allthe wayaround).
Theductmustbecenteredwithin thisopening.
a. Outside Ductwork Protection
1) To protect the outside end of the horizontal ductwork from the weather, a 90° elbow bent downward
should be installed where the exhaust exits the building. If the ductwork travels vertically up
through the roof, it should be protected from the weather by using a 180° turn to point the opening
downward. In either case, allow at least twice the diameter of the duct between the duct opening
and the nearest obstruction.
IMPORTANT: DONOTusescreens, louvers, orcaps onthe outside openingof the exhaust
ductwork.

14 American Dryer Corp. 113047-21
2. Multiple Dryer (Common) Venting
If it is not feasible to provide a separate exhaust duct for each dryer, ducts from individual dryers may be
channeled into a “common main duct.” The individual ducts should enter the bottom or the side of the main
duct at an angle not more than 45° in the direction of the airflow. The main duct should be tapered with
the diameter increasing before each individual 8-inch (20.32 cm) duct is added.
IMPORTANT: No more thaneight (8) dryersshould beconnected to one(1) main commonduct
(refertothe illustrationonthefollowing page).
The main duct may be any shape so long as the minimum cross-sectional area is provided. The illustration
on the following page shows the minimum cross-sectional area for multiple dryer venting. These figures
must be increased in proportion as the result of whatever changes or additions are made to this ductwork
run. Two (2) examples are if ductwork length from last dryer to where duct exits the building exceeds
limits noted (20 feet [6.1 meters]) or, if ductwork runs from last dryer to where duct exits the building has
more than two (2) elbows (including outside protection).
NOTE: Refertotheillustrationonthefollowingpagefor examplesofmultipledryer(common)
venting.
IMPORTANT: For extended ductworkruns, thecross-sectional areaof the ductworkcan onlybe
increasedto anextent. Maximumproportional ductworkruns cannotexceed20 feet
(6.1meters)more thantheoriginal limitationsof20 feet(6.1meters) withone(1)
elbow. When theductworkapproachesthe maximumlimitsasnoted inthismanual, a
professionalheating,venting,andairconditioning (HVAC)firmshouldbeconsulted
forproperventinginformation.
IMPORTANT: Exhaust backpressuremeasuredby amanometer/magnehelicintheexhaust duct
mustbeno less than 0 and mustnotexceed0.3 in WC (0.74 mb) with both baskets
(tumblers)operating.
NOTE: Itis recommendedthatexhaust orbooster fansnot beused in theexhaust ductworksystem
exceptwhere necessarytomaintain exhaustback pressure(inthe exhaustduct) betweenzero
and0.3 inchwatercolumn withboth baskets(tumblers) operating. Whereemployed,booster
fansmustnot activatethedryer airflowprovingswitch(sail switch)whenthe dryerisnotin
operation.
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. ALLductwork joints mustbetaped 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: Whentheexhaust ductworkpassesthrough awall,ceiling,or roofmadeof combustible
materials,the openingmustbe2-inches(5.08 cm)larger thanthe duct(allthe wayaround).
Theductmustbecentered withinthisopening.

113047-21 www.adclaundry.com 15
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.

16 American Dryer Corp. 113047-21
F. ELECTRICAL INFORMATION
1. Electrical Requirements
It is your responsibility to have ALL electrical connections made by a properly licensed and competent
electrician to assure that the electrical installation is adequate and conforms to local and state regulations or
codes. In the absence of such codes, ALL electrical connections, 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 tocomplywith thesecodesorordinances, ortherequirements stipulatedinthis
manual,canresultinpersonalinjuryorcomponentfailure.
NOTE: ComponentfailureduetoimproperinstallationwillVOIDTHEWARRANTY.
A separate circuit servicing each dryer must be provided. The dryer must be connected with copper wire
only. DO NOT use aluminum wire, which could cause a fire hazard.
NOTE: TheuseofaluminumwirewillVOIDTHEWARRANTY.
2. 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 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 (sized per local codes)
be connected from the ground connection of the dryer to a grounded cold water pipe. DO NOT ground to
a gas pipe or hot water pipe. The grounded cold water pipe must have metal to metal connection ALL
the way to electrical ground. If there are any nonmetallic interruptions, such as, a meter, pump, plastic,
rubber, or other insulating connectors, they must be jumped out with no. 4 copper wire and securely
clamped to bare metal at both ends.
IMPORTANT: For personal safetyand proper operation,the dryer mustbe grounded.
3. Electrical Connections
Awirediagram is located on the inside of the control(service)
box for connection data.
a. Single-Phase (1ø) Hookup
TheelectricalinputconnectionsonALLsingle-phase (1ø)
dryers are made into the junction box located at the upper
rear of the dryer. A separate circuit servicing each dryer
basket (tumbler) must be provided.