ADC SL20 Administrator Guide

SL20 / SL31 / SL50 / SL75
Installation/Operator Manual
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.
— WHAT TO DO IF YOU SMELL GAS:
• Do not try to light any appliance.
• Do not touch any electrical switch.
• Do not use any phone in your
building.
• Clear the room, building or area of all
occupants.
• Immediately call your gas supplier
from a neighbor’s phone. Follow the
gas supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be
performed by a qualified installer, service
agency or the gas supplier.
AVERTISSEMENT: Assurez-vous de bien
suivre les instructions données dans cette
notice pour réduire au minimum le risque
d’incendie ou d’explosion ou pour éviter
tout dommage matériel, toute blessure ou
la mort.
— 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.
ADC Part No. 113403-17
American Dryer Corporation
88 Currant Road
Fall River MA 02720-4781 USA
Telephone: [phone] / Fax: [phone]
e-mail: [e-mail]
www.amdry.com

2 American Dryer Corp. 113403-17
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.
IMPORTANT
For your convenience, log the following information:
DATE OF PURCHASE _________________________________________________________ MODEL NO. ______________
RESELLER’S NAME ___________________________________________________________________________________
SERIAL NUMBER(S) ___________________________________________________________________________________
____________________________________________________________________________________________________
____________________________________________________________________________________________________
Replacement parts can be obtained from your reseller or the ADC factory. When ordering replacement parts from the
factory, you can FAX your order to ADC at [phone] or telephone your order directly to the ADC Parts
Department at [phone]. 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.
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
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.
FOR YOUR SAFETY
Do not store or use gasoline
or other flammable vapors
and liquids in the vicinity of
this or any other appliance.
POUR VOTRE SÉCURITÉ
Ne pas entreposer ni utiliser d’essence
ni d’autres vapeurs ou liquides
inflammables à proximité de cet
appareil ou de tout autre appareil.
“IMPORTANT NOTE TO PURCHASER”
Information must be obtained from your local gas supplier on the
instructions to be followed if the user smells gas. These
instructions must be posted in a prominent location near the dryer.

113403-17 www.amdry.com 3
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 of any equipment per OSHA standards.
Please observe all safety precautions displayed on
the equipment and/or specified in the installation
manual included with the dryer.
Before installation, check that the local distribution
conditions, nature of gas and pressure, and
adjustment of the 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 all wires prior to disconnection when
servicing controls. Wiring errors can cause improper
operation.”
«Attention:Au moment de l’entretien des commandes,
étiquetez tous les fils avant de les débrancher. Des
erreurs de câblage peuvent entraîner un
fonctionnement inadéquat et dangereux.»
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.
The wiring diagram for the dryer is located behind the
control panel.
Table of Contents __________________
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
Children should not be allowed to play on or near
the dryer(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.
The dryer must never be operated with any of
the back guards, outer tops, or service panels
removed. Personal injury or fire could result.
The dryer must never be operated without the
lint 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.
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.
!WARNING
List of Acronyms _________________________
HVAC Heating, Ventilating, and Air-Conditioning
in WC Inches of Water Column
L.C.D. Liquid Crystal Display
L.P. Liquid Propane
OSHA Occupational Safety and Health Administration
R.M.A. Return Material Authorization
UL Underwriters Laboratory
Safety Precautions ................................................................ 4
SL20 Specifications ............................................................... 6
SL31 Specifications ............................................................... 8
SL50 Specifications ............................................................. 10
SL75 Specifications ............................................................. 12
Installation Procedures ...................................................... 14
Location Requirements ........................................................ 14
Unpacking / Setting Up ......................................................... 14
Dryer Enclosure Requirements ........................................... 14
Fresh Air Supply Requirements .......................................... 15
Exhaust Requirements ......................................................... 15
Electrical Information ............................................................ 17
Gas Information.................................................................... 20
Steam Information ................................................................ 25
Water Information ................................................................ 26
Preparation for Operation / Start-Up ................................... 27
Preoperational Test .............................................................. 27
Preoperational Instructions ................................................. 28
Shutdown Instructions ........................................................ 28
Service / Parts Information ............................................... 29
Service ................................................................................. 29
Parts ...................................................................................... 29
Warranty Information .......................................................... 29
Returning Warranty Cards .................................................. 29
Warranty .............................................................................. 29
Returning Warranty Parts ................................................... 29
Routine Maintenance .......................................................... 30
Data Label Information ....................................................... 31
Programming........................................................................ 32

4 American Dryer Corp. 113403-17
Safety Precautions ___________________
!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
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.
Failure to properly install, maintain, and/or operate
dryer according to this manual and operator’s
manuals included with dryer may result in conditions,
which can cause serious injury, death and/or property
damage.
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 the manufacturer 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,
combustible detergents, 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.
Items that have been spotted or soaked with vegetable
or cooking oil constitute a fire hazard and should not
be placed in a tumble dryer.
Do not dry mop heads. Contamination by wax or
flammable solvents will create a fire hazard.
!WARNING
Do not use heat for drying articles that contain plastic,
foam, sponge rubber, or similarly textured rubber
materials. Drying in a heated tumbler may damage
plastics or rubber and also may be a fire hazard.
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.
Do not operate steam dryers with more than 150 psi (10.34
bar) steam pressure. Excessive steam pressure can
damage the steam coil and/or harm personnel.
Replace leaking flexible hoses or other steam fixtures
immediately. Do not operate the dryer with leaking flexible
hoses. Personal injury may result.
!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 and/or country codes. In the
absence of these codes use 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.
!WARNING
Personal injury or fire could result should the dryer
door switch, lint door/drawer, or heat safety circuit
ever be disabled.
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.
For safety, proper operation, and optimum performance, the
dryer must not be operated with a load less than 66% of its
rated capacity.
!WARNING
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 of any equipment per OSHA standards.

113403-17 www.amdry.com 5
NOTES _____________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
____________________________________________________________
IMPORTANT: The 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).
The operation of this appliance may affect the operation of
other types of gas appliances, which take their air for safe
combustion from the same room. If in doubt, consult the
appliance manufacturer(s).
Use this dryer only for its intended purpose, drying fabrics.
The “Cool Down” Cycle of tumble dryers should be used to
reduce the temperature of the items. They should not be
removed from the tumble dryer or piled or stacked while
hot.
Fabric softeners or similar products should not be used in
a tumble dryer to eliminate the effects of the static electricity,
unless this practice is specifically recommended by the
manufacturer of the fabric softener or product.
!WARNING
To reduce the risk of personal injury, install lockable
doors to prevent public access to the rear of the
dryers.
Exhaust duct outlet should be checked periodically for
blockages, and if any found, removed.
IMPORTANT: A means of restraint must be used to
prevent straining of the gas supply when the appliance is
moved.
An external means of power removal (disconnect device)
must be provided by the installer.
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.
!WARNING
This appliance must only operate with the gas type
indicated on the dryer’s data plate. If the appliance is
converted (gas type is changed), a data plate
amendment must be obtained from American Dryer
Corporation.
This appliance may cause spillage of products of
combustion from an open-flue appliance fitted in the
same room, and that such an appliance shall be tested
for clearance of products with the appliance in
operation and all windows and doors closed.

6 American Dryer Corp. 113403-17
SL20 Specifications _______________________________________________________________
NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.
MAXIMUM CAPACITY (DRY WEIGHT) 20 lb 9.07 kg
TUMBLER DIAMETER 25-3/4”65.41 cm
TUMBLER DEPTH 24”60.96 cm
TUMBLER VOLUME 7-1/2 cu ft 212.38 L
TUMBLER/DRIVE MOTOR 1/4 hp 0.19 kW
BLOWER/FAN MOTOR 1/3 hp 0.25 kW
DOOR OPENING (DIAMETER) 19-3/8”49.21 cm
DOOR SILL HEIGHT 13”33.02 cm
WATER CONNECTION 3/4”-11.5 NH
(North America)
3/4”B.S.P.T. (Outside North America)
DRYERS PER 20’/40’CONTAINER 42 / 84
DRYERS PER 48’/53’TRUCK 96 / 108
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 245 lb 111.13 kg
APPROXIMATE SHIPPING WEIGHT 265 lb 120.20 kg
AIRFLOW 60 Hz 230 cfm 6.51 cmm
50 Hz 191 cfm 5.40 cmm
HEAT INPUT 40,000 Btu/hr 10,080 kcal/hr
EXHAUST CONNECTION (DIAMETER) 4”10.16 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNECTION 3/8”M.N.P.T.
3/8”M.B.S.P.T.
(CE and Australia Only)
VOLTAGE AVAILABLE 200-416V 1,3ø2,3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 245 lb 111.13 kg
APPROXIMATE SHIPPING WEIGHT 265 lb 120.20 kg
AIRFLOW 60 Hz 230 cfm 6.51 cmm
50 Hz 191 cfm 5.40 cmm
EXHAUST CONNECTION (DIAMETER) 4”10.16 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
OVEN SIZE
kW Btu/hr kcal/hr
4.1 13,843 3,488
5.0 17,065 4,300
5.4 18,430 4,644
5.6 19,112 4,816
6.1 20,819 5,246
6.5 22,184 5,590
6.8 23,208 5,848
7.4 25,255 6,364
7.5 25,597 6,450
8.1 27,644 6,966
VOLTAGE AVAILABLE
N / A
APPROXIMATE NET WEIGHT
APPROXIMATE SHIPPING WEIGHT
AIRFLOW
STEAM CONSUMPTION
OPERATING STEAM PRESSURE
EXHAUST CONNECTION (DIAMETER)
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
BOILER HORSEPOWER (NORMAL LOAD)
SUPPLY CONNECTION
RETURN CONNECTION
Shaded areas are stated in metric equivalents 4/12/10
GASELECTRICSTEAM

113403-17 www.amdry.com 7
SL20 Specifications _______________________________________________________________

8 American Dryer Corp. 113403-17
MAXIMUM CAPACITY (DRY WEIGHT) 30 lb 13.61 kg
TUMBLER DIAMETER 30”76.20 cm
TUMBLER DEPTH 27”68.58 cm
TUMBLER VOLUME 11.04 cu ft 312.62 L
TUMBLER/DRIVE MOTOR 1/4 hp 0.19 kW
BLOWER/FAN MOTOR 1/2 hp 0.37 kW
DOOR OPENING (DIAMETER) 19-3/8”49.21 cm
DOOR SILL HEIGHT 14-7/8”37.78 cm
WATER CONNECTION 3/4 ”-11.5 NH
(North America)
3/4”B.S.P.T. (Outside North America)
DRYERS PER 20’/40’CONTAINER 12 / 28
DRYERS PER 48’/53’TRUCK 34 / 38
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 285 lb 129.27 kg
APPROXIMATE SHIPPING WEIGHT 310 lb 140.61 kg
AIRFLOW 60 Hz 360 cfm 10.19 cmm
50 Hz 300 cfm 8.49 cmm
HEAT INPUT 55,000 Btu/hr 13,860 kcal/hr
EXHAUST CONNECTION (DIAMETER) 6”15.24 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNECTION 1/2”M.N.P.T.
3/8”M.B.S.P.T.
(CE and Australia Only )
VOLTAGE AVAILABLE 200-416V 1,3ø2,3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 285 lb 129.27 kg
APPROXIMATE SHIPPING WEIGHT 310 lb 140.61 kg
AIRFLOW 60 Hz 360 cfm 10.19 cmm
50 Hz 300 cfm 8.49 cmm
EXHAUST CONNECTION (DIAMETER) 6”15.24 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
OVEN SIZE
kW Btu/hr kcal/hr
7.9 26,962 6,794
8.3 28,327 7,138
9.0 30,716 7,740
11.3 38,566 9,719
12.4 42,320 10,665
12.5 42,661 10,751
13.5 46,074 11,611
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 305 lb 138.35 kg
APPROXIMATE SHIPPING WEIGHT 330 lb 149.69 kg
AIRFLOW 60 Hz 360 cfm 10.19 cmm
50 Hz 300 cfm 8.49 cmm
STEAM CONSUMPTION 63 lb/hr 28.58 kg/hr
OPERATING STEAM PRESSURE 150 psi max 10.34 bar
EXHAUST CONNECTION (DIAMETER) 6”15.24 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
BOILER HORSEPOWER (NORMAL LOAD) 1.75 Bhp
SUPPLY CONNECTION 1/2”F.N.P.T.
RETURN CONNECTION 1/2”M.N.P.T.
SL31 Specifications _______________________________________________________________
NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.
GAS
ELECTRIC
STEAM
Shaded areas are stated in metric equivalents 9/30/05

113403-17 www.amdry.com 9
SL31 Specifications _______________________________________________________________

10 American Dryer Corp. 113403-17
SL50 Specifications _______________________________________________________________
NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.
Shaded areas are stated in metric equivalents 4/30/07
MAXIMUM CAPACITY (DRY WEIGHT) 50 lb 22.68 kg
TUMBLER DIAMETER 37”93.98 cm
TUMBLER DEPTH 25-3/4”65.41 cm
TUMBLER VOLUME 16.02 cu ft 453.64 L
TUMBLER/DRIVE MOTOR 3/4 hp 0.56 kW
BLOWER/FAN MOTOR 1/2 hp 0.37 kW
DOOR OPENING (DIAMETER) 27-3/8”69.53 cm
DOOR SILL HEIGHT 16”40.64 cm
WATER CONNECTION 3/4”-11.5 NH
(North America)
3/4”B.S.P.T. (Outside North America)
DRYERS PER 20’/40’CONTAINER 10 / 22
DRYERS PER 48’/53’TRUCK 28 / 30
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 545 lb 247.21 kg
APPROXIMATE SHIPPING WEIGHT 565 lb 256.28 kg
AIRFLOW 60 Hz 525 cfm 14.87 cmm
50 Hz 437 cfm 12.37 cmm
HEAT INPUT 90,000 Btu/hr 22,680 kcal/hr
EXHAUST CONNECTION (DIAMETER) 8”20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNEC TION 1/2”M.N.P.T.
1/2”F. B.S .P.T.
(CE and Australia Only)
VOLTAGE AVAILABLE 120-600V 1,3ø2,3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 545 lb 247.21 kg
APPROXIMATE SHIPPING WEIGHT 565 lb 256.28 kg
AIRFLOW 60 Hz 525 cfm 14.87 cmm
50 Hz 437 cfm 12.37 cmm
EXHAUST CONNECTION (DIAMETER) 8”20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
OVEN SIZE
kW Btu/hr kcal/hr
13.4 45,869 11,559
14.7 50,136 12,634
14.8 50,545 12,737
16.0 54,606 13,761
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 545 lb 247.21 kg
APPROXIMATE SHIPPING WEIGHT 565 lb 256.28 kg
AIRFLOW 60 Hz 525 cfm 14.87 cmm
50 Hz 437 cfm 12.37 cmm
STEAM CONSUMPTION 127.5 lb/hr 57.83 kg/hr
OPERATING STEAM PRESSURE 150 psi max 10.34 bar
EXHAUST CONNECTION (DIAMETER) 8”20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
BOILER HORSEPOWER (NORMAL LOAD) 3.75 Bhp
SUPPLY CONNECTION 3/4”F.N.P.T.
RETURN CONNECTION 3/4”M.N.P.T.
GASELECTRICSTEAM

113403-17 www.amdry.com 11
SL50 Specifications _______________________________________________________________

12 American Dryer Corp. 113403-17
NOTE: The manufacturer reserves the right to make changes in specifications at any time without notice or obligation.
MAXIMUM CAPACITY (DRY WEIGHT) 75 lb 34.02 kg
TUMBLER DIAMETER 37”93.98 cm
TUMBLER DEPTH 35-1/2”90.17 cm
TUMBLER VOLUME 22.09 cu ft 625.52 L
TUMBLER/DRIVE MOTOR 3/4 hp 0.56 kW
BLOWER/FAN MOTOR 1/2 hp 0.37 kW
DOOR OPENING (DIAMETER) 27-3/8”69.53 cm
DOOR SILL HEIGHT 16”40.64 cm
WATER CONNECTION 3/4”-11.5 NH
(North America)
3/4”B.S.P.T. (Outside North America)
DRYERS PER 20’/40’CONTAINER 9 / 20
DRYERS PER 48’/53’TRUCK 25 / 27
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 600 lb 272.16 kg
APPROXIMATE SHIPPING WEIGHT 620 lb 281.23 kg
AIRFLOW 60 Hz 560 cfm 15.86 cmm
50 Hz 466 cfm 13.19 cmm
HEAT INPUT 110,000 Btu/hr 27,720 kcal/hr
EXHAUST CONNECTION (DIAMETER) 8”20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
INLET PIPE CONNECTION 1/2”M.N.P.T.
1/2”F.B.S .P.T.
(CE and Australia Only )
VOLTAGE AVAILABLE 200-416V 1,3ø2,3,4w 50/60 Hz
APPROXIMATE NET WEIGHT 600 lb 272.16 kg
APPROXIMATE SHIPPING WEIGHT 620 lb 281.23 kg
AIRFLOW 60 Hz 560 cfm 15.86 cmm
50 Hz 466 cfm 13.19 cmm
EXHAUST CONNECTION (DIAMETER) 8”20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
OVEN SIZE
kW Btu/hr kcal/hr
18.5 63,105 15,902
20.3 69,000 17,000
22.0 75,084 18,921
VOLTAGE AVAILABLE 120-240V 1ø2w 50/60 Hz
APPROXIMATE NET WEIGHT 600 lb 272.16 kg
APPROXIMATE SHIPPING WEIGHT 620 lb 281.23 kg
AIRFLOW 60 Hz 560 cfm 15.86 cmm
50 Hz 466 cfm 13.19 cmm
STEAM CONSUMPTION 136 lb/hr 61.69 kg/hr
OPERATING STEAM PRESSURE 150 psi max 10.34 bar
EXHAUST CONNECTION (DIAMETER) 8”20.32 cm
COMPRESSED AIR CONNECTION N / A
COMPRESSED AIR VOLUME N / A
BOILER HORSEPOWER (NORMAL LOAD) 4 Bhp
SUPPLY CONNECTION 3/4”F.N.P.T.
RETURN CONNECTION 3/4”M.N.P.T.
SL75 Specifications _______________________________________________________________
Shaded areas are stated in metric equivalents 4/30/07
GASELECTRICSTEAM

113403-17 www.amdry.com 13
SL75 Specifications _______________________________________________________________

14 American Dryer Corp. 113403-17
Installation Procedures ______________
Installation should be performed by competent professional
in accordance with local, state, and country 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 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).
Location Requirements ______________
Before installing the dryer, be sure the location conforms to
local, state, and country codes. 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).
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.
The dryer must not be installed or stored in an area where it
will be exposed to water and/or weather.
Dryers installed in residential garages must be elevated
18-inches (45.72 cm) above the floor.
Provisions for adequate air supply must be provided as
noted in this manual (refer to Fresh Air Supply Requirements
section).
Clearance provisions must be made from combustible
construction as noted in this manual (refer to Dryer
Enclosure Requirements section).
Provisions must be made for adequate clearances for
servicing and for operation as noted in this manual (refer to
Dryer Enclosure Requirements section).
The dryer must be installed with a proper exhaust duct
connection to the outside as noted in this manual (refer to
Exhaust Requirements section).
The dryer must be located in an area where correct exhaust
venting can be achieved as noted in this manual (refer to
Exhaust Requirements section).
IMPORTANT: The dryer should be located where a
minimum amount of exhaust ducting will be necessary.
The dryer must be installed with adequate clearance for air
openings into the combustion chamber.
CAUTION: This dryer produces combustible lint and
must be exhausted to the outdoors. Every 6 months,
inspect the exhaust ducting and remove any lint
buildup.
IMPORTANT: The 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).
Unpacking / Setting Up _______________
Remove protective shipping material (i.e., plastic wrap and
optional shipping box) from the 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 remove
the skid from the SL20, simply lift the unit off of the skid; for
the SL31, SL50, or SL75, locate and remove the two bolts
securing the base of the dryer to the wooden skid. One is
located at the center rear and the other is at the center front.
With the skid removed, use caution and assure all four
leveling legs are fully retracted, if the dryer is to be slid into
its final position.
Leveling Dryer
The dryer is equipped with four leveling legs, one at each
corner of the base. For optimum performance the dryer
should be level front-to-back and side-to-side.
Dryer Enclosure Requirements _______
Commercial Type II
(SL20, SL31, SL50, SL75)
Bulkheads and partitions should be made of
noncombustible material.
NOTE: Allowances must be made for opening the control
door.
A The requirement to allow the door to open completely
for the SL20 is 30-inches (76.2 cm), SL31 is 33-inches
(83.8 cm), and the SL50 and SL75 are 40-inches (101.6
cm).
B A minimum overhead clearance of 6-inches (15.24 cm)
is required.
C Dryer should be positioned a minimum of 12-inches
(30.48 cm) away from the nearest obstruction. 24-inches
(60.96 cm) is recommended for ease of installation,
maintenance, and service.
D 1/16”(1.5875 mm) minimum is required.
E Flooring should be level or below dryer cabinet for ease
of removing panels during maintenance.
F Dryers may be positioned sidewall to sidewall, however
a 1/16”(1.5875 mm) minimum allowance must be made
for the opening and closing of the control door, along
with the removal of panels during maintenance.

113403-17 www.amdry.com 15
Domestic Type I
(SL20, SL31, SL50 Only)
EXAMPLE: For SL50, two unrestricted openings measuring
6-inches by 24-inches (15.24 cm by 60.96 cm) are
acceptable.
If a closet door is installed: unobstructed air openings are
required. The air openings shall be located 3-inches
(7.62 cm) from the lower opening (above floor level) and
upper opening (below ceiling). The total free area of the air
openings in the door shall not be less than 130 inch2
(838.708 cm2) for SL20; 179 inch2(1154.836 cm2) for SL31;
and 293 inch2(1890.319 cm2) for SL50. Louvered doors
with equivalent air openings are acceptable.
No other fuel-burning appliance shall be installed in the
same closet as the dryer.
Fresh Air Supply Requirements ______
When the dryer is operating, it draws in room air, heats it,
passes this air through the 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. The dryer must be installed with provisions for
adequate combustion and make-up air supply.
Air supply (make-up air) must be given careful consideration
to ensure proper performance of each dryer. Fresh air
ventilation openings shall not be blocked and/or sealed. As
a general rule, an unrestricted air entrance from the outdoors
of 110 inch2(710 cm2) is required for each SL75, 90 inch2
(580 cm2) for each SL50, 55 inch2(354 cm2) for each SL31,
and 40 inch2(258 cm2) for each SL20. (Based on 1 inch2
[6.5 cm2] per 1,000 Btu [252 kcal].)
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.
To compensate for the use of registers or louvers used over
the openings, this area must be increased by approximately
33%. 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 high altitudes
or predominantly low pressure areas.
EXAMPLE: For a bank of four SL31 dryers, two unrestricted
openings measuring 10-inches by 11-inches (25.4 cm by
27.94 cm) are acceptable.
IMPORTANT: Make-up air must be 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.
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.
The dryer shall not be exhausted into any gas vent, chimney,
wall, ceiling or concealed space of a building.
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.
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. There should be a minimum
6-inch (15.24 cm) clearance between the back guard and
the first bend in the ductwork for ease of servicing. Single or
independent dryer venting is recommended. 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. All ductwork should
be smooth inside with no projections from sheet metal
screws or other obstructions, which will collect lint. When
adding ducts, overlap the duct being connected. All ductwork
joints must be taped to prevent moisture and lint from
escaping into the building. Back draft dampers must be
installed in all commonly ducted systems. Inspection doors
should be installed at strategic points in the exhaust
ductwork for periodic inspection and cleaning of lint from
the ductwork.
NOTE: Component failure due to dry cleaning solvent
fumes will void the warranty.
A = 6-inches (15.24 cm)
B = 24-inches (60.96 cm)
A = 10-inches (25.4 cm)
B = 11-inches (27.94 cm)

16 American Dryer Corp. 113403-17
NOTE 1 Opening from combustible materials must be 2-inches (5.08 cm)
larger than the duct (all the way around). The duct must be centered
within this opening.
NOTE 2 Distance should be 2 times the diameter of the duct to the nearest
obstruction.
Multiple Dryer (Common) Venting
IMPORTANT: For extended ductwork runs, the cross-
sectional area of the ductwork can only be increased to an
extent. When the ductwork approaches the maximum
limits as noted in this manual, a professional HVAC firm
should be consulted for proper venting information.
If it is not feasible to provide separate exhaust ducts for
each dryer, ducts from individual dryers may be channeled
into a “common main duct.”The individual ducts should
enter the bottom or side of the main duct at an angle not
more than 45ºin the direction of airflow. The main duct
should be tapered, with the diameter increasing before each
individual duct is added.
IMPORTANT: It is recommended that exhaust or booster
fans not be used in the exhaust ductwork system.
Exhaust back pressure measured by a manometer/
magnehelic in the exhaust duct must be no less than 0
and must not exceed 0.6 in WC (1.48 mb).
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.
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.”
The ductwork for this appliance must be suitable for the
appliance category in accordance with national installation
regulations of the country of destination.
Outside Ductwork Protection
To protect the outside end of the horizontal ductwork from
the weather, a 90°elbow bent downward should be installed
where the exhaust exits the building. If the 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 (refer
to the diagram).
IMPORTANT: Do not use screens, louvers, or caps on the
outside opening of the exhaust ductwork.
Single Dryer Venting
IMPORTANT: For extended ductwork runs, the cross-
sectional area of the ductwork can only be increased to an
extent. When the ductwork approaches the maximum
limits as noted in this manual, a professional HVAC firm
should be consulted for proper venting information.
Horizontal Venting
When horizontal dryer venting is used, the length of the
ductwork from the dryer to the outside exhaust outlet, must
not exceed 20 feet (6.10 meters). The minimum diameter
of this ductwork must be at least 4-inches (10.16 cm) for
SL20, 6-inches (15.24 cm) for SL31, and 8-inches (20.32
cm) for SL50 and SL75. Including tumbler/dryer elbow
connections or elbows used for outside protection from the
weather, no more than one elbow should be used in the
exhaust duct run. If more than one elbow is used, the cross-
sectional area of the ductwork must be increased.
Vertical Venting
When vertical dryer venting is used, the length of the ductwork
from the dryer to the outside exhaust outlet, must not exceed
12 feet (3.66 meters). The minimum diameter of this
ductwork must be at least 4-inches (10.16 cm) for SL20,
6-inches (15.24 cm) for SL31, and 8-inches (20.32 cm) for
SL50 and SL75. Including tumbler/dryer elbow connections
or elbows used for outside protection from the weather, no
more than three elbows should be used in the exhaust duct
run. If more than three elbows are used, the cross-sectional
area of the ductwork must be increased.
A = 20 feet (6.10 meters)
B = SL20 –4”(10.16 cm)
SL31 –6”(15.24 cm)
SL50, SL75 –8”(20.32 cm)
C = 12 feet (3.66 meters)
D = SL20 –4”(10.16 cm)
SL31 –6”(15.24 cm)
SL50, SL75 –8”(20.32 cm)

113403-17 www.amdry.com 17
IMPORTANT: No more than four dryers should be
connected to one main common duct.
The illustration below shows the minimum cross-sectional
area for multiple dryer round or square venting. These
figures must be increased if the main duct run from the last
dryer to where it exhausts to the outdoors is longer than 12
feet (3.656 meters) or has more than one elbow in it.
NOTE 1 Opening from combustible materials must be 2-inches (5.08 cm) larger
than the duct (all the way around). The duct must be centered within
this opening.
NOTE 2 Distance should be 2 times the diameter of the duct to the nearest
obstruction.
Multiple Dryer Venting with 4-Inch (10.16 cm) Diameter
230 cfm (6.51 cmm) Exhaust Connections at Common Duct
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,
state, and national regulations or codes of the country of
origin. In the absence of such codes, all electrical
connections, materials, and workmanship must conform to
the applicable requirements of the National Electrical Code
ANSI/NFPA NO. 70-LATEST EDITION or in Canada, the
Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or
LATEST EDITION.
IMPORTANT: Failure to comply with these codes or
ordinances, and/or the requirements stipulated in this
manual can result in personal injury or component failure.
NOTE: Component failure due to improper installation will
void the warranty.
Each dryer should be connected to an independently
protected branch circuit. The dryer must be connected with
copper wire only. Do not use aluminum wire, which could
cause 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 improper voltage
connections will automatically void the warranty.
NUMBER OF DRYERS 4 3 2 1
MINIMUM CROSS-
SECTIONAL AREA
SQ IN 80 80 54 30
SQ CM 516.1 516.1 348.4 193.55
MINIMUM ROUND
DUCT DIAMETER
IN 10 10 8 6
CM 25.4 25.4 20.32 15.24
SL20
A = SL20 4-inch (10.16 cm)
SL31 6-inch (15.24 cm)
SL50 8-inch (20.32 cm)
SL75 8-inch (20.32 cm)
B =12 feet (3.656 meters)
NUMBER OF DRYERS 4 3 2 1
MINIMUM CROSS-
SECTIONAL AREA
SQ IN 120 120 80 54
SQ CM 774.2 774.2 516.1 348.4
MINIMUM ROUND
DUCT DIAMETER
IN 12 12 10 8
CM 30.48 30.48 25.4 20.32
Multiple Dryer Venting with 8-Inch (20.32 cm) Diameter
525 cfm (14.87 cmm) Exhaust Connections at Common Duct
SL50
NUMBER OF DRYERS 4 3 2 1
MINIMUM CROSS-
SECTIONAL AREA
SQ IN 120 120 80 54
SQ CM 774.2 774.2 516.1 348.4
MINIMUM ROUND
DUCT DIAMETER
IN 12 12 10 8
CM 30.48 30.48 25.4 20.32
Multiple Dryer Venting with 8-Inch (20.32 cm) Diameter
560 cfm (15.86 cmm) Exhaust Connections at Common Duct
SL75
NUMBER OF DRYERS 4 3 2 1
MINIMUM CROSS-
SECTIONAL AREA
SQ IN 80 80 54 30
SQ CM 516.1 516.1 348.4 193.55
MINIMUM ROUND
DUCT DIAMETER
IN 10 10 8 6
CM 25.4 25.4 20.32 15.24
SL31
Multiple Dryer Venting with 6-Inch (15.24 cm) Diameter
360 cfm (10.19 cmm) Exhaust Connections at Common Duct

18 American Dryer Corp. 113403-17
Electric Models Only
All electrically heated dryers must be connected to the electric
service shown on the dryer’s data label. The connecting
wires must be properly sized to handle the rated current.
1/11/13
!WARNING (Gas Models Only)
Dryers built for use with a voltage between 200 and
240 must verify the input voltage during installation.
TERM LINE VOLTAGE
50 Hz 60 Hz
HIGH
260
226
283
249
MED
239
208
260
230
LOW
217
189
236
208
If the nominal voltage is
outside of the medium
tolerances shown on the
diagram below, adjust
the autotransformer,
located near the burner
assembly. To adjust the
autotransformer wiring,
place the red wire on the
appropriate tap (HIGH,
MED, LOW) of the autotransformer. For additional
wiring details, refer to the electrical diagram located
on the inside of the control panel.
Electrical Service Specifications
Gas Models Only
1/11/13
ELECTRICAL SERVICE SPECIFICATIONS
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 230/240 VAC ARE NOT THE SAME. When ordering,
specify exact voltage.
When fuses are used they must be dual element, time delay, current
limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse
value, by applying either local and/or National Electrical Codes to
listed appliance amp draw data.
Circuit breakers are thermal-magnetic (industrial) motor curve type
ONLY. For others, calculate/verify correct breaker size according to
appliance amp draw rating and type of breaker used.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
SERVICE
VOLTAGE PHASE WIRE
SERVICE
APPROX.
AMP DRAW CIRCUIT
BREAKER
60 Hz 50 Hz
SL20 Gas
120 1ø28.9—15
200 1ø27.77.8 15
208 1ø27.6—15
220 1ø27.37.4 15
230 1ø27.37.3 15
240 1ø27.27.0 15
SL31 Gas
120 1ø210.3—15
200 1ø28.78.8 15
208 1ø28.4—15
220 1ø28.18.1 15
230 1ø2—7.4 15
240 1ø27.77.0 15
SL50 Gas
120 1ø215.6—20
200 1ø210.5—20
208 1ø210.5—20
220 1ø2 10.0 10.7 20
230 1ø2—10.8 20
240 1ø2 9.7 10.2 20
SL75 Gas
120 1ø215.6—20
200 1ø210.5—20
208 1ø210.5—20
220 1ø2 10.0 10.7 20
230 1ø2—10.8 20
240 1ø29.7—20
ELECTRICAL SERVICE SPECIFICATIONS
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 230/240 VAC ARE NOT THE SAME. When ordering,
specify exact voltage.
When fuses are used they must be dual element, time delay, current
limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse
value, by applying either local and/or National Electrical Codes to
listed appliance amp draw data.
Circuit breakers are thermal-magnetic (industrial) type ONLY. For
others, calculate/verify correct breaker size according to appliance
amp draw rating and type of breaker used.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
SERVICE
VOLTAGE PHASE WIRE
SERVICE OVEN kW
APPROX.
AMP DRAW CIRCUIT
BREAKER
60 Hz 50 Hz
SL20
200 1ø2 5.6 32.7 32.7 45
208 1ø2 4.1 24.2 —35
208 1ø2 6.1 34.0 —45
220 1ø2 4.6 25.5 —40
220 1ø2 6.8 35.6 —45
230 1ø25.0—26.4 35
230 1ø27.4—36.8 50
240 1ø2 5.4 27.1 —35
240 1ø2 8.1 38.4 38.4 50
208 3ø3 6.5 22.7 —30
220 3ø3 6.8 22.4 —30
230 3ø37.5—23.5 30
240 3ø3 8.1 24.1 —40
380 3ø4 6.8 14.9 15.0 20
400 3ø47.5—15.5 20
416 3ø48.1—15.8 20
SL31
200 1ø2 12.5 68.4 67.7 90
208 1ø2 7.9 43.8 —60
208 1ø2 13.5 70.7 —90
220 1ø2 7.5 36.9 —40
220 1ø211.3—56.8 80
230 1ø28.3—41.3 60
230 1ø2 12.4 —59.1 80
240 1ø2 9.0 42.7 —60
240 1ø2 13.5 61.5 —80
208 3ø3 13.5 43.3 —60
220 3ø3 11.3 35.3 —50
230 3ø3 12.4 —36.5 50
240 3ø3 13.5 37.7 —50
380 3ø4 11.3 22.8 22.6 40
400 3ø4 12.4 —23.1 40
416 3ø4 13.5 —23.7 40
SL50
200 1ø2 14.8 82.1 —110
208 1ø2 16.0 85.1 —110
220 1ø2 13.4 68.8 69.4 90
230 1ø2 14.7 —72.3 100
240 1ø2 16.0 74.2 75.1 100
200 3ø3 14.8 —51.0 70
208 3ø3 16.0 52.6 —70
220 3ø3 13.4 43.0 43.6 60
230 3ø3 14.7 —45.3 60
240 3ø3 16.0 46.0 —60
380 3ø4 13.4 28.0 28.6 40
400 3ø4 14.8 —29.8 40
416 3ø4 16.0 —30.7 40
SL50 Dual Voltage 480 / 120
120 1ø2 0.0 13.2 —15
480 3ø3 16.0 19.2 —25
SL50 Dual Voltage 480 / 240
240 1ø20.06.5—15
480 3ø3 16.0 19.2 —25
SL50 Dual Voltage 600 / 120
120 1ø2 0.0 13.2 —15
600 3ø3 16.0 15.4 —20
SL50 Dual Voltage 600 / 240
240 1ø20.06.5—15
600 3ø3 16.0 15.4 —20
SL75
200 1ø2 20.3 109.8 —150
208 1ø2 22.0 113.9 —150
220 1ø2 18.5 91.7 92.3 125
230 1ø220.3—96.3 125
240 1ø2 22.0 99.2 —125
208 3ø3 22.0 69.2 —90
220 3ø3 18.5 56.2 56.8 80
230 3ø320.3—59.1 80
240 3ø3 22.0 60.4 —80
380 3ø4 18.5 35.6 —45
380 3ø4 18.5 —36.2 50
400 3ø420.3—37.8 50
416 3ø422.0—39.1 50

113403-17 www.amdry.com 19
1/11/13
Grounding
A ground (earth) connection must be provided and installed
in accordance with local, state, and national regulations or
codes of the country of origin. In the absence of these codes,
grounding must conform to applicable requirements of the
National Electrical Code ANSI/NFPA NO. 70-LATEST
EDITION, or in Canada, the installation must conform to
applicable Canada Standards: Canadian Electrical Codes
Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION. The
ground connection may be to a proven earth ground at the
location service panel.
For added personal safety, when possible, it is suggested
that a separate ground wire (size 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 the electrical ground.
If there are any nonmetallic interruptions, such as, a meter,
pump, plastic, rubber, or other insulating connectors, they
must be jumped out with a wire (size per local codes) and
securely clamped to bare metal at both ends.
IMPORTANT: For personal safety and proper operation,
the dryer must be grounded.
Provisions are made for ground connection in each dryer at
the electrical service connection area.
200-240V Application without Neutral
CAUTION: The dryer must be grounded. A ground lug
has been provided for this purpose.
Input connection wiring must be sized properly to handle
the dryer’s current draw. This information is printed on the
dryer’s data label.
IMPORTANT: A strain relief must be used where the input
wiring enters the oven assembly.
Steam Models Only !WARNING
Electrical Grounding Instructions –This dryer is
equipped with a 3-prong (grounding) plug for your
protection against shock hazard and should be
plugged directly into a properly grounded 3-prong
receptacle. Do not cut or remove the grounding prong
from this plug.
Electrical Connections
A wiring diagram is located behind the control panel for
connection data.
If local codes permit, power to the dryer can be made by the
use of a flexible UL listed power cord/pigtail (wire size must
conform to rating of dryer), or the dryer can be hard wired
directly to the service breaker panel. In both cases, a strain
relief must be installed where the wiring enters the dryer.
For CE Models Only
The means for disconnection from the supply must be
incorporated into wiring having a minimum contact
separation of 3.0 mm in all poles.
Single-Phase (1ø)
Wiring Connections / Hookup
The electrical input connections are made into the rear
service box located at the upper right area of the dryer. The
ground connection is made to the copper lug, also provided
in this box. To gain access, the service box cover must be
removed.
Gas and Steam Models Only
120-240V Application with Neutral
ELECTRICAL SERVICE SPECIFICATIONS
IMPORTANT:
NOTES: A.
B.
C.
208 VAC AND 230/240 VAC ARE NOT THE SAME. When ordering,
specify exact voltage.
When fuses are used they must be dual element, time delay, current
limiting, class RK1 or RK5 ONLY. Calculate/determine correct fuse
value, by applying either local and/or National Electrical Codes to
listed appliance amp draw data.
Circuit breakers are thermal-magnetic (industrial) motor curve type
ONLY. For others, calculate/verify correct breaker size according to
appliance amp draw rating and type of breaker used.
Circuit breakers for 3-phase (3ø) dryers must be 3-pole type.
SERVICE
VOLTAGE PHASE WIRE SERVICE
APPROX.
AMP DRAW CIRCUIT
BREAKER
60 Hz 50 Hz
SL31 Steam
120 1ø29.3—15
208 1ø26.26.0 15
220 1ø25.65.5 15
230 1ø2—5.4 15
240 1ø25.1—15
SL50 Steam
120 1ø214.4—20
200 1ø28.2—20
208 1ø28.2—20
220 1ø27.88.4 20
230 1ø2—8.5 20
240 1ø27.6—20
SL75 Steam
120 1ø214.4—20
200 1ø28.2—20
208 1ø28.2—20
220 1ø27.88.4 20
230 1ø2—8.5 20
240 1ø27.6—20

20 American Dryer Corp. 113403-17
Gas Information ______________________
It is your responsibility to have all plumbing connections,
materials, and workmanship conform to local and state
regulations or codes of the country of destination. In the
absence of such codes, all plumbing connections, materials,
and workmanship must conform to the applicable local
requirements. In the USA this is the National Fuel Gas Code
ANSI Z223.1-LATEST EDITION, or in Canada, the Canadian
Installation Codes CAN/CGA-B149.1-M91 (Natural Gas) or
CAN/CGAB149.2-M91 (L.P. Gas) or LATEST EDITION.
Electrically Heated Models Only
The electrical input connections are made at the rear service
box located at the right upper section of the dryer. The ground
connection is made to a copper lug also provided in this
area. To gain access, remove rear service cover.
208-416 Volt Applications
The electrical input connections to the dryer are the 3-phase
(3ø) power leads (L1, L2, L3, and sometimes neutral) and
ground. Single-phase (1ø) power for the control circuit and
for any single-phase (1ø) motors (if present) is done
internally to the dryer by the factory at the oven contactor.
The neutral will only be used on 4-wire service. This is
typical for 380-416V, 50 Hz.
440-480 Volt Applications
The electrical input connections to the dryer are made
through two different terminal blocks, one for the 3-phase
(3ø) power to supply the oven and one for the single-phase
(1ø) power for the motor and controls.
CAUTION: The dryer must be grounded. A ground lug
has been provided for this purpose.
Input connection wiring must be sized properly to handle
the dryer’s current draw. This information is printed on the
dryer’s data label.
Electric Models Only
Single-Phase (1ø) Wiring Connections / Hookup
3-Phase (3ø) Wiring Connections / Hookup
In Australia, the fuel gas code is AS 5601/AG 601, local
authority, gas, electricity, and any other relevant statutory
regulations.
It is important that gas pressure regulators meet applicable
pressure requirements, and that gas meters be rated for the
total amount of all the appliance Btu being supplied.
IMPORTANT: Failure to comply with these codes or
ordinances, and/or the requirements stipulated in this
manual, can result in personal injury and improper
operation of the dryer.
For ease of service, the individual gas supply line of each
dryer must have its own manual shutoff valve.
The dryer and its individual shutoff valve must be
disconnected from the gas supply piping system during
any pressure testing of that system at test pressures in
excess of 1/2 psig (3.5 kPa) for non-CE dryers or 50 mb for
CE dryers.
Failure to isolate or disconnect the dryer from supply as
noted can cause irreparable damage to the gas valve,
voiding the warranty.
NOTE: The dryer must be isolated from the gas supply
piping system by closing its individual manual shutoff
valve during any pressure test of the gas supply system at
test pressures equal to or less than 1/2 psig (3.5 kPa) for
non-CE dryers or 50 mb for CE dryers.
!WARNING
Fire or explosion could result due to failure of isolating
or disconnecting the gas supply as noted.
NOTE: Undersized gas piping will result in ignition
problems, slow drying, increased use of energy, and can
create a safety hazard.
The dryer must be connected to the type of heat/gas indicated
on the data label and pressure must be confirmed. If this
information does not agree with the type of gas available, do
not operate the dryer. Contact the reseller who sold the dryer
or contact the manufacturer.
The input ratings shown on the data label are for elevations
up to 2,000 feet (610 meters), unless elevation requirements
of over 2,000 feet (610 meters) were specified at the time the
dryer order was placed with the factory. The adjustment or
conversion of dryers in the field for elevations over 2,000 feet
(610 meters) is made by changing each burner orifice. If this
conversion is necessary, contact the reseller who sold the
dryer or contact the manufacturer.
IMPORTANT: If connection to this appliance is made with a
flexible hose, it must be suitable for the appliance category
in accordance with national installation regulations of the
country of destination, and if in doubt the installer must
contact the supplier. The manufacturer of this appliance
does not recommend the use of flexible gas supply line/
hose. An external gas supply shutoff must be provided.
CE and Australian Dryers
There is an N.P.T. to B.S.P.T. adaptor included with each dryer,
which must be installed to the gas inlet. The adaptor is
shipped in the tumbler.
IMPORTANT: Pipe joint compounds that resist the action of
natural, propane, and butane gases must be used.