American Dryer Corp. ML-55 Installation manual

ML-55II Installation Manual
Phase 7, Non-Coin
Warning: For your safety the information
in this manual must be followed to
minimize the risk of fire or explosion or to
prevent property damage, personal injury
or death.
Avertissement: Assurez-vous de bien
suivre les instructions données dans cette
notice pour réduire au minimum le risque
d’incendie ou d’explosion ou pour éviter
tout dommage matériel, toute blessure ou
la mort.
— Do not store or use gasoline or other flammable vapors and liquids in the vicinity of
this or any other appliance.
— Ne pas entreposer ni utiliser d’essence ni
d’autres vapeurs ou liquides inflammables
à proximité de cet appareil ou de tout autre
appareil.
— What To Do If You Smell Gas
• Do not try to light any appliance.
• Do not touch any electrical switch; do
not use any phone in your building.
• Clear the room, building or area of all
occupants.
• Immediately call your gas supplier from
a neighbor’s phone. Follow the gas
supplier’s instructions.
• If you cannot reach your gas supplier,
call the fire department.
— Installation and service must be performed
by a qualified installer, service agency or
the gas supplier.
— Que Faire Si Vous Sentez Une
Odeur De Gaz
• Ne pas tenter d’allumer d’appareils.
• Ne touchez à aucun interrupteur. Ne
pas vous servir des téléphones se
trouvant dans le bâtiment.
• Évacuez la pièce, le bâtiment ou la
zone.
• Appelez immédiatement votre
fournisseur de gaz depuis un voisin.
Suivez les instructions du fournisseur.
• Si vous ne pouvez rejoindre le
fournisseur de gaz, appelez le service
des incendies.
— L’installation et l’entretien doivent être
assurés par un installateur ou un service
d’entretien qualifié ou par le fournisseur de
gaz.
American Dryer Corporation
88 Currant Road
Fall River MA 02720-4781
Telephone: (508) 678-9000 / Fax: (508) 678-9447
e-mail: techsupport@amdry.com
www.amdry.com
ADC Part No. 113345
Retain This Manual In A Safe Place For Future Reference
American Dryer Corporation products embody advanced concepts in engineering, design, and safety. If this product
is properly maintained, it will provide many years of safe, efficient, and trouble free operation.
ONLY qualified technicians should service this equipment.
OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with
the dryer.
The following “FOR YOUR SAFETY” caution must be posted near the dryer in a prominent location.
Pour Votre Sécurité
For Your Safety
Do not store or use gasoline or
other flammable vapors and liquids
in the vicinity of this or any other
appliance.
Ne pas entreposer ni utiliser
d’essence ni d’autres vapeurs ou
liquides inflammables à proximité
de cet appareil ou de tout autre
appareil.
We have tried to make this manual as complete as possible and hope you will find it useful. ADC
reserves the right to make changes from time to time, without notice or obligation, in prices,
specifications, colors, and material, and to change or discontinue models. The illustrations included in
this manual may nor depict your particular dryer exactly.
Important
For your convenience, log the following information:
DATE OF PURCHASE _____________
ML-55 Phase 7
MODEL NO. _______________________________
RESELLER’S NAME ____________________________________________________________
Serial Number(s) ________________________________________________________________
_________________________________________________________________
_________________________________________________________________
Replacement parts can be obtained from your reseller or the ADC factory. When ordering
replacement parts from the factory, you can FAX your order to ADC at (508) 678-9447 or
telephone your order directly to the ADC Parts Department at (508) 678-9000. Please specify the dryer
model number and serial number in addition to the description and part number, so that your order
is processed accurately and promptly.
“Important Note To Purchaser”
Information must be obtained from your local gas supplier on the
instructions to be followed if the user smells gas. These instructions
must be posted in a prominent location near the dryer.
Important
You must disconnect and lock out the electric
supply and the gas supply or the steam supply
before any covers or guards are removed from
the machine to allow access for cleaning,
adjusting, installation, or testing of any
equipment per OSHA (Occupational Safety and
Health Administration) standards.
Please observe all safety precautions displayed
on the equipment and/or specified in the
installation manual included with the dryer.
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).
“Caution: Label all wires prior to disconnection
when servicing controls. Wiring errors can cause
improper operation.”
«Attention: Au moment de l’entretien des
commandes, étiquetez tous les fils avant de les
débrancher. Des erreurs de câblage peuvent
entraîner un fonctionnement inadéquat et
dangereux.»
Caution
Dryers should never be left unattended while in
operation.
Warning
Children should not be allowed to play on or near
the dryer(s).
Children should be supervised if near dryers in
operation.
Under no circumstances should the dryer door
switch, lint drawer switch, or the heat safety circuit
ever be disabled.
The dryer must never be operated with any of
the back guards, outer tops, or service panels
removed. Personal injury or fire could result.
Dryer must never be operated without the lint
filter/screen in place, even if an external lint
collection system is used.
For Your Safety
Do not dry mop heads in the dryer.
Do not use dryer in the presence of dry cleaning
fumes.
Dryer must not be installed or stored in an area
where it will be exposed to water or weather.
The wiring diagram for the dryer is located in the
front electrical control box area.
Table of Contents __________
Safety Precautions ....................................... 2
Specifications/Component Identification ..... 3
Specifications ...................................................................... 3
Component Identification .................................................... 4
Installation Procedures ................................ 4
Location Requirements ...................................................... 4
Unpacking/Setting Up ......................................................... 5
Dryer Enclosure Requirements ......................................... 5
Fresh Air Supply Requirements ......................................... 6
Exhaust Requirements ....................................................... 6
Electrical Information .......................................................... 8
Gas Information ................................................................. 11
Steam Information ............................................................. 12
Preparation For Operation/Start-Up .................................. 15
Preoperational Tests ........................................................ 15
Preoperational Instructions .............................................. 16
Shutdown Instructions ...................................................... 16
Service/Parts Information .......................... 17
Service ............................................................................... 17
Parts ................................................................................... 17
Warranty Information ................................. 17
Returning Warranty Card .................................................. 17
Warranty ............................................................................. 17
Returning Warranty Parts .................................................. 17
Routine Maintenance ................................. 18
Cleaning ............................................................................ 18
Adjustments ...................................................................... 18
Lubrication ......................................................................... 18
Procedure for Functional Check of
Replacement Components ......................... 19
Data Label Information ............................... 20
Manual Reset Burner Hi-Limit Instructions 20
Phase 7 ............................................................................. 20
Dual Timer ......................................................................... 20
Fire Suppression System (F.S.S.) ................ 21
SAFETY PRECAUTIONS __________
Warning
Note
!
Failure to electrically ground the dryer properly will
void the warranty.
For your safety, the information in this manual must
be followed to minimize the risk of fire or explosion
or to prevent property damage, personal injury, or
loss of life.
Under no circumstances should the dryer door switch, lint
drawer switch, or the heat safety circuit ever be disabled.
The dryer must never be operated with any of the back guards,
outer tops, or service panels removed. Personal injury or fire
could result.
Personal injury or fire could result should the dryer
door switch, lint drawer switch, or the heat safety
circuit ever be disabled.
!
Warning
!
Do not store or use gasoline or other flammable vapors and
liquids in the vicinity of this or any other appliance.
This dryer is not to be used in the presence of dry cleaning
solvents or fumes.
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.
Remove articles from the dryer as soon as the drying cycle
has been completed.
What to do if You Smell Gas
Warning
!
• 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.
Dryer(s) must be exhausted to the outdoors.
Although ADC produces a very versatile dryer, there are some
articles that, due to fabric composition or cleaning method,
should not be dried in it.
Warning
Dry only water washed fabrics. Do not dry articles
spotted or washed in dry cleaning solvents, a
combustible detergent, or “all purpose” cleaner.
Explosion could result.
!
Do not dry rags or articles coated or contaminated with
gasoline, kerosene, oil, paint, or wax. Explosion could result.
Do not dry mop heads. Contamination by wax or flammable
solvents will create a fire hazard.
Do not use heat for drying articles that contain plastic, foam,
sponge rubber, or similarly textured rubber materials. Drying
in a heated basket (tumbler) may damage plastics or rubber
and may be a fire hazard.
A program should be established for the inspection and
cleaning of lint in the heating unit area, exhaust ductwork,
and inside the dryer. The frequency of inspection and cleaning
can best be determined from experience at each location.
Articles left in the dryer after the drying and cooling
cycles have been completed can create a fire
hazard.
Do not operate steam dryers with more than 125 psi (8.6 bar)
steam pressure. Excessive steam pressure can cause
damage to 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.
The normal pH level for copper type steam coils must be
maintained between a value of 8.5 to 9.5. For steel type
steam coils the pH level must be maintained between a value
of 9.5 to 10.5. These limits are set to limit the acid attack of
the steam coils.
Important
!
Coil failure due to improper pH level will void the
warranty.
Read and follow all caution and direction labels attached to
the dryer.
For safety, proper operation, and optimum performance, the
dryer must not be operated with a load less than sixty-six
percent (66%), 36 lbs (16 kg) of its rated capacity.
Warning
You must disconnect and lock out the electric supply
and the gas supply or the steam supply before any
covers or guards are removed from the machine to
allow access for cleaning, adjusting, installation, or testing of
any equipment per OSHA (Occupational Safety and Health
Administration) standards.
!
Important
!
Dryer must be installed in a location/environment,
which the ambient temperature remains between
40º F (4.44º C) and 130º F (54.44º C).
Warning
!
The collection of lint in the burner area and exhaust
ductwork can create a potential fire hazard.
For personal safety, the dryer must be electrically grounded
in accordance with local codes and/or the National Electrical
Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the
Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or
LATEST EDITION.
2
American Dryer Corp.
113345-9
SPECIFICATIONS/COMPONENT
IDENTIFICATION ________________
Specifications _________________________
MAXIMUM CAPACITY (DRY WEIGHT)
TUMBLER DIAMETER
Note
!
TUMBLER DEPTH
TUMBLER VOLUME
TUMBLER/DRIVE MOTOR
DOOR OPENING (DIAMETER)
WATER CONNECTION
DRYERS PER 20’/40’ CONTAINER
DRYERS PER 48’/53’ TRUCK
VOLTAGE AVAILABLE
APPROX. NET WEIGHT
APPROX. SHIPPING WEIGHT
AIRFLOW
HEAT INPUT
INLET PIPE CONNECTION
OVEN SIZE
kW
Btu/hr
kcal/hr
20
68,250
17,200
30
102,400
25,800
VOLTAGE AVAILABLE
APPROX. NET WEIGHT
APPROX. SHIPPING WEIGHT
AIRFLOW
STEAM CONSUMPTION
OPERATING STEAM PRESSURE
COMPRESSED AIR CONNECTION
COMPRESSED AIR VOLUME
BOILER HP (NORMAL LOAD)
SUPPLY CONNECTION
RETURN CONNECTION
ADC reserves the right to make changes in
specifications at any time without notice or obligation.
Dryer Notes
Ductwork size varies with installation conditions.
Exhaust static pressure must be no less than 0 and
must not exceed 0.3 inches (0.74 mb) water column.
Gas
!
Steam Dryer Notes
Operating height of steam dryer is 81-inches
(205.74 cm).
Size of piping varies with installation conditions.
Contact factory for assistance.
Steam dryers must be provided with clean, dry, regulated
80 psi + 10 psi (5.5 bar + 0.69 bar) air supply.
Steam*
Shaded areas are stated in metric equivalents
*
113345-9
25 kg
94 cm
76.2 cm
0.528 cu m
0.56 kW
79.7 cm
30”
18.67 cu ft
3/4 hp
31-3/8”
3/4-11.5 NH
10 / 20
26 / 28
120-480v
1,3ø
2,3,4w
50/60 Hz
585 lb
269.9 kg
645 lb
292.6 kg
600 cfm
17 cmm
160,000 Btu/hr
40,320 kcal/hr
3/4” F.N.P.T.
Electric
!
55 lb
37”
120-480v
1,3ø
2,3,4w
50/60 Hz
625 lb
283.5 kg
675 lb
306.2 kg
600 cfm
17 cmm
144.7 lb/hr
65.7 kg/hr
125 psi max
8.6 bar
1/8” F.N.P.T.
0.75 cfh
0.02 cmh
4.2 Bhp
1” F.N.P.T.
1” F.N.P.T.
12/01/04
Specify air-operated steam damper system or electromechanical steam damper system when
ordering. Air-operated steam damper system must be provided with a clean, dry, regulated 80
psi ± 10 psi (5.52 bar ± 0.68 bar). Air connection is 1/8” N.P.T. Air volume requirement is 0.75
cfh (0.02 cmh).
www.amdry.com
3
Component Identification _____________
Dryer Front View
INSTALLATION PROCEDURES _____
Installation should be performed by competent technicians
in accordance with local and state codes. In the absence of
these codes, the installation must conform to applicable
American National Standards: ANSI Z223.1-LATEST EDITION
(National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST
EDITION (National Electrical Code) or in Canada, the
installation must conform to applicable Canadian Standards:
CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for
General Installation and Gas Plumbing) or Canadian
Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST
EDITION (for Electrical Connections).
Location Requirements ________________
Illus. No. Description
1
2
3
4
5
Controls
Control (top access) Door Assembly
Main Door Assembly
Lint Compartment Area (lint screen located behind door)
Data Label and Installation Label
Dryer Rear View
Before installing the dryer, be sure the location conforms to
local codes and ordinances. In the absence of such codes
or ordinances the location must conform with the National
Fuel Gas Code ANSI.Z223.1 LATEST EDITION, or in Canada,
the installation must conform to applicable Canadian
Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/
CGA-B149.2-M91 (L.P. Gas) or LATEST EDITION (for General
Installation and Gas Plumbing).
The dryer must be installed on a sound level floor capable of
supporting its weight. Carpeting must be removed from the
floor area that the dryer is to rest on.
Important
!
“The dryer must be installed on noncombustible floors
only.”
The dryer must not be installed or stored in an area where it
will be exposed to water and/or weather.
The dryer is for use in noncombustible locations.
Provisions for adequate air supply must be provided as noted
in this manual (refer to Fresh Air Supply Requirements).
Clearance provisions must be made from noncombustible
construction as noted in this manual (refer to Dryer Enclosure
Requirements).
Provisions must be made for adequate clearances for
servicing and for operation as noted in this manual (refer to
Dryer Enclosure Requirements).
Dryer must be exhausted to the outdoors as noted in this
manual (refer to Exhaust Requirements).
Dryer must be located in an area where correct exhaust venting
can be achieved as noted in this manual (refer to Exhaust
Requirements).
Important
!
Dryer should be located where a minimum amount
of exhaust duct will be necessary.
The dryer must be installed with a proper exhaust duct
connection to the outside.
Illus. No. Description
1
2
3*
4
5
6
7
8
9
Heating Unit
1/8” Compressed Air Supply Inlet
(Note: located behind the electric service relay box on
steam models only)
Electric Service Relay Box
Basket (tumbler) Bearing Mount Assembly
Idler Bearing Mount Assembly
Blower Motor Assembly (reversing models only)
Leveling Leg (rear)
Basket (tumbler) Drive Motor Assembly
Dryer Exhaust
The dryer must be installed with provisions for adequate
combustion and make-up air supply.
Caution
!
This dryer produces combustible lint and must be
exhausted to the outdoors. Every 6 months, inspect
the exhaust ducting and remove any lint build up.
Important
!
Dryer must be installed in a location/environment,
which the ambient temperature remains between
40º F (4.44º C) and 130º F (54.44º C).
* Electric service connections for gas and steam models are made in this box.
4
American Dryer Corp.
113345-9
Unpacking/Setting Up _________________
Remove protective shipping material (i.e., plastic wrap, and/
or optional shipping box) from dryer.
Important
!
Dryer must be transported and handled in an upright
position at all times.
The dryer can be moved to its final location while still attached
to the skid or with the skid removed. To unskid the dryer,
locate and remove the four (4) bolts securing the base of the
dryer to the wooden skid. Two (2) are at the rear base (remove
the back panel for access), and two (2) are located in the
bottom of the lint chamber. To remove the two (2) bolts located
in the lint chamber area, remove the lint door.
With the skid removed, to make it easier to slide the dryer into
its final position, slightly lower all four (4) leveling legs, so
that the dryer will slide on the legs instead of the base frame.
The lint coops of all dryers are supported during shipping by
a bracket. Remove this bracket before starting the dryer.
Leveling Dryer
The dryer is equipped with four (4) leveling legs, one (1) at
each corner of the base. Two (2) are located at the rear of the
dryer base, and two (2) are located in the lint chamber (coop).
To increase bearing life and improve efficiency, the dryer
should be tilted slightly to the rear.
Dryer Enclosure Requirements________
Bulkheads and partitions should be
made of noncombustible materials
and must be located a minimum of
12-inches (30.48 cm) (18-inches
[45.72 cm] or more is recommended
for
ease
of
installation,
maintenance, and service) above
the dryer outer top, except along the
front of the dryer which may be
partially closed in if desired. The
clearance between the bulkhead
header and the dryer must be a
minimum of 4-inches (10.16 cm) and
must not extend more than 4-inches
(10.16 cm) to the rear of the front.
The bulkhead facing must not be
closed in all the way to the top of the
dryer. A 1-inch (2.54 cm) clearance
is required.
Note
!
Allowances must be made
for opening the control
door.
Dryers may be positioned sidewall
to sidewall. However, a 1/16” (1.58
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 above for details.
!
Note
Air considerations are important for proper and
efficient operation.
113345-9
Important
When fire sprinkler systems are located above the
dryers, a minimum of 18-inches (45.72 cm) above
the dryer console (module) is required. Dryers may
be positioned sidewall to sidewall however, a 1/16” (1.58 mm)
minimum allowance is required between dryers (or wall) for
ease of installation and maintenance. Allowances must be
made for the opening and closing of the control door and the
lint door.
!
www.amdry.com
5
Important
Note
Even though a minimum of only 12-inches (30.48
cm) is required, 18-inches (45.72 cm) or more is
suggested.
The additional clearance is
advantageous for ease of installation and service.
!
Fresh Air Supply Requirements _______
When the dryer is operating, it draws in room air, heats it,
passes this air through the basket (tumbler), and exhausts it
out of the building. Therefore, the room air must be continually
replenished from the outdoors. If the make-up air is
inadequate, drying time and drying efficiency will be adversely
affected. Ignition problems and sail switch “fluttering”
problems may result, as well as premature motor failure from
overheating.
Air supply (make-up air) must be given careful consideration
to ensure proper performance of each dryer. An unrestricted
source of air is necessary for each dryer. An airflow of 600
cfm (cubic feet per minute [17 cmm] [cubic meters per minute])
must be supplied to each gas, electric, and steam dryer. As
a general rule, an unrestricted air entrance from the outdoors
(atmosphere) of a minimum of 1-1/4 square foot (0.12 square
meters) is required for each dryer. The dryer must be installed
with provisions for adequate combustion and make-up air
supply.
!
Component failure due to dry cleaning solvent fumes
will void the warranty.
Exhaust Requirements _________________
General Exhaust Ductwork Information
Exhaust ductwork should be designed and installed by a
qualified professional. Improperly sized ductwork will create
excessive back pressure which results in slow drying,
increased use of energy, overheating of the dryer, and
shutdown of the burner by the airflow (sail) switches, burner
hi-limits, or basket (tumbler) hi-heat thermostats. The dryer
must be installed with a proper exhaust duct connection to
the outside.
Caution
!
This dryer produces combustible lint and must be
exhausted to the outdoors.
Improperly sized or installed exhaust ductwork can create a
potential fire hazard.
Important
!
It is recommended that exhaust or booster fans not
be used in the exhaust ductwork system.
The ductwork should be laid out in such a way that the
ductwork travels as directly as possible to the outdoors with
as few turns as possible. Single or independent dryer venting
is recommended.
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 four (4) dryers, two (2)
unrestricted openings measuring 2 feet by 1-1/4 feet
(0.61 meters by 0.38 meters) are acceptable.
Allowances must be made for remote or constricting
passageways or where dryers are located at excessive
altitudes or predominantly low pressure areas.
Important
Make-up air must be provided from a source free of
dry cleaning solvent fumes. Make-up air that is
contaminated by dry cleaning solvent fumes will
result in irreparable damage to the motors and other dryer
components.
!
6
Horizontal Venting
When single dryer venting is used, the length of the ductwork
from the dryer to the outside exhaust outlet must not exceed
30 feet (9.1 meters). The minimum diameter of this ductwork
must be at least 8-inches (20.32 cm). In the case of multiple
(common) dryer venting, the distance from the last dryer to
the outside exhaust outlet must not exceed 15 feet
(4.6 meters). The shape of the ductwork is not critical as
long as the minimum cross-sectional area is provided. It is
American Dryer Corp.
113345-9
suggested that the use of 90° turns be avoided; use 30°
and/or 45° angles instead. The radius of the elbows should
preferably be 1-1/2 times the diameter of the duct. Including
basket (tumbler)/dryer elbow connections or elbows used
for outside protection from the weather, no more than one (1)
elbow should be used in the exhaust duct run. If more than
one (1) elbow is used, the cross-sectional area of the
ductwork must be increased. All ductwork should be smooth
inside with no projections from sheet metal screws or other
obstructions, which will collect lint. When adding ducts, the
duct to be added should overlap the duct to which it is to be
connected. All ductwork joints must be taped to prevent
moisture and lint from escaping into the building. Inspection
doors should be installed at strategic points in the exhaust
ductwork for periodic inspection and cleaning of lint from the
ductwork.
Vertical Venting
When single dryer venting is used, the length of the ductwork
from the dryer to the outside exhaust outlet must not exceed
15 feet (4.6 meters). The minimum diameter of this ductwork
must be at least 8-inches (20.32 cm). In the case of multiple
(common) dryer venting, the distance from the last dryer to
the outside exhaust outlet must not exceed 15 feet
(4.6 meters). The shape of the ductwork is not critical as
long as the minimum cross-sectional area is provided. It is
suggested that the use of 90º turns be avoided; use 30º
and/or 45º angle instead. The radius of the elbows should
preferably be 1-1/2 times the diameter of the duct. Including
basket (tumbler)/dryer elbow connections or elbows used
for outside protection from the weather, no more than three
(3) elbows should be used in the exhaust duct run. If more
than three (3) elbows are used, the cross-sectional area of
the ductwork must be increased. All ductwork should be
smooth inside with no projections from sheet metal screws
or other obstructions, which will collect lint. When adding
ducts, the duct to be added should overlap the duct to which
it is to be connected. All ductwork joints must be taped to
prevent moisture and lint from escaping into the building.
Inspection doors should be installed at strategic points in
the exhaust ductwork for periodic inspection and cleaning of
lint from the ductwork.
Important
!
Do not use screens, louvers, or caps on the outside
opening of the exhaust ductwork.
Single Dryer Venting
When possible, it is suggested to provide a separate exhaust
duct for each dryer. The exhaust duct should be laid out in
such a way that the ductwork travels as directly as possible
to the outdoors with as few turns as possible. It is suggested
that the use of 90° turns in the ducting be avoided; use 30°
and/or 45° angles instead. The shape of the exhaust ductwork
is not critical as long as the minimum cross section area is
provided.
Important
Minimum duct size for a dryer that is vented
horizontally is 8-inches (20.32 cm) for a round duct
or an equivalent of 54 square inches (348.4 square
centimeters). The duct size must not be reduced anywhere
downstream of the dryer.
!
Exhaust back pressure measured by a manometer at each
basket (tumbler) exhaust duct area must be no less than 0
and must not exceed 0.3 inches (0.74 mb) of water column
(W.C.).
Minimum duct size for a dryer that is vented vertically is
8-inches (20.32 cm) for a round duct or an equivalent of 54
square inches (348.4 square centimeters). The duct size
must not be reduced anywhere downstream of the dryer.
Important
Exhaust back pressure measured by a manometer
in the exhaust duct must be no less than 0 and
must not exceed 0.3 inches (0.74 mb) of water
column (W.C.).
!
Minimum ductwork diameter for horizontal and vertical
venting is 8-inches (20.32 cm).
Note
When the exhaust ductwork passes through a wall,
ceiling, or roof made of combustible materials, the
opening must be 2-inches (5.08 cm) larger than
the duct (all the way around). The duct must be centered
within this opening.
!
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 0.0195-inches (26 gauge [0.05 mm])
thick.”
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.
113345-9
www.amdry.com
7
Important
For extended ductwork runs, the
cross section area of the
ductwork can only be
increased to an extent. When the
ductwork approaches the maximum
limits noted in this manual, a
professional heating, ventilating, and
air-conditioning (HVAC) firm should be
consulted
for
proper
venting
information.
!
All ductwork should be smooth inside
with no projections from sheet metal
screws or other obstructions, which will
collect lint. When adding ducts, the duct
to be added should overlap the duct to
which it is to be connected. All ductwork
joints must be taped to prevent moisture
and lint from escaping into the building.
Inspection doors should be installed at
strategic points in the exhaust ductwork
for periodic inspection and cleaning of
lint from the ductwork.
Note
When the exhaust ductwork
passes through a wall, ceiling,
or roof made of combustible
materials, the opening must be 2-inches
(5.08 cm) larger than the duct (all the way around). The duct
must be centered within this opening.
!
Outside Ductwork Protection
To protect the outside end of the horizontal ductwork from the
weather, a 90° elbow bent downward should be installed
where the exhaust exits the building. If the 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
!
Do not use screens, louvers, or caps on the outside
opening of the exhaust ductwork.
Electrical Information ________________
Electrical Requirements
All electrical connections must be made by a properly licensed
and competent electrician. This is to ensure that the electrical
installation is adequate and conforms to local and state
regulations or codes. In the absence of such codes, all
electrical connections, materials, and workmanship must
conform to the applicable requirements of the National
Electrical Code ANSI/NFPA NO. 70-LATEST EDITION or in
Canada, the Canadian Electrical Codes Parts 1 & 2 CSA
C22.1-1990 or LATEST EDITION.
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.
ADC 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 230/240 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 230/240 VAC are not the same. Any
damage done to dryer components due to improper
voltage connections will automatically void the
warranty.
!
Important
!
Each dryer should be connected to an independently protected
branch circuit. The dryer must be connected with copper
wire only. Do not use aluminum wire; it could create a fire
hazard. The copper conductor wire/cable must be of proper
ampacity and insulation in accordance with electric codes
for making all service connections.
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
!
8
Component failure due to improper installation will
void the warranty.
American Dryer Corp.
113345-9
Electrical Service Specifications
Important
!
Figures shown are for non-reversing models only. For
reversing models contact the factory.
Gas and Steam Models only
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
MPORTANT:208 VAC and 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.
B. Circuit breakers are thermal-magnetic (industrial) motor curve type
ONLY. For others, calculate/verify correct breaker size according to
appliance amp draw rating and type of breaker used.
C. Circuit breakers for 3-phase (3Ø) dryers must be 3-pole type.
For added personal safety, when possible, it is suggested
that a separate ground wire (no. 18 minimum) be connected
from the ground connection of the dryer to a grounded cold
water pipe. Do not ground to a gas pipe or hot water pipe.
The grounded cold water pipe must have metal-to-metal
connection all the way to the electrical ground. If there are
any nonmetallic interruptions, such as, a meter, pump, plastic,
rubber, or other insulating connectors, they must be jumped
out with no. 4 copper wire and securely clamped to bare
metal at both ends.
Important
NOTES: A.
APPROX.
SERVICE
WIRE
MINIMUM CIRCUIT
PHASE
AMP DRAW
VOLTAGE
SERVICE
WIRE SIZE BREAKER
120
208
240
208
240
380/400
416
460/480
1ø
1ø
1ø
3ø
3ø
3ø
3ø
3ø
2
2
2
3
3
4**
4**
3
60 Hz
50 Hz
12
7.1
6.5
3.3
3.1
----2.1
----4.8
--3.5
2.2
2.3
---
*
*
*
*
*
*
*
*
20
15
15
15
15
15
15
15
11/30/04
* AWG Stranded Wire Type – size wire as per National Electrical Code or
local codes.
** 3-Wire available.
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.
ELECTRICAL SERVICE SPECIFICATIONS (PER DRYER)
IMPORTANT:
208 VAC AND 240 VAC ARE NOT THE SAME . When
ordering, specify exact voltage.
NOTES:
A. When fuses are used they must be dual element, time
delay, current limiting, class RK1 or RK5 ONLY.
Calculate/determine correct fuse value, by applying either
local and/or National Electrical Codes to listed appliance
amp draw data.
B. Circuit breakers are thermal-magnetic (industrial) type
ONLY. For others, calculate/verify correct breaker size
according to appliance amp draw rating and type of breaker
used.
C. Circuit breakers for 3-phase (3ø) dryers must be 3-pole
type.
SERVICE
VOLTAGE
PHASE
208
240
1ø
1ø
208
240
480
3ø
3ø
3ø
WIRE
SERVICE
APPROX.
AMP DRAW
60 Hz
50 Hz
!
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.
Electrical Connections
A wiring diagram is located inside the control box for
connection data.
If local codes permit, power to the dryer can be made by the
use of a flexible U.L. listed power cord/pigtail (wire size must
conform to rating of dryer), or the dryer can be hard wired
directly to the service breaker panel. In both cases, a strain
relief must be installed where the wiring enters the dryer.
Gas and Steam Models only
Important
!
A separate protected circuit must be provided to each
dryer.
Single-Phase (1ø) Wiring Connections/Hookup
The electrical input connections on all single-phase (1ø) gas
dryers and steam dryers are made into the rear service box
located at the upper left area of the dryer.
CIRCUIT
BREAKER
20 kW ELECTRIC
2
2
103
90
–
88
125
125
–
77
–
125
100
50
30 kW ELECTRIC
3
3
3
90
79
38
11/30/04
Grounding
A ground (earth) connection must be provided and installed
in accordance with state and local codes. In the absence of
these codes, grounding must conform to applicable
requirements of the National Electrical Code ANSI/NFPA NO.
70-LATEST EDITION, or in Canada, the installation must
conform to applicable Canada Standards: Canadian Electrical
Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION.
The ground connection may be to a proven earth ground at
the location service panel.
113345-9
www.amdry.com
9
Single-Phase Electrical Lead Connections
Black
+
Positive
White or Red
+
Neutral
or L2
Green
+
Ground
3-Phase (3ø) Wiring Connections/Hookup
The electrical connections on all 3-phase (3ø) gas and steam
dryers are made into the rear service box located at the upper
left area of the dryer. The electrical connections are made at
the power distribution block located in the service box. The
ground connection is made to the copper lug, also provided
in this box. To gain access, the service box cover must be
removed.
For 110V Applications
For 208-230/240V Applications
The neutral will only be used on 4-wire service. This is typical for 380-416V,
50 Hz.
Electrically Heated Models Only
The only 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. No
single-phase (1ø) input connection is required on a 3-phase
(3ø) dryer.
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.
A ground lug is provided in the rear electrical box to connect your service
ground.
10
American Dryer Corp.
113345-9
The electrical input connections are made at the electric oven
contactor located inside the assembly at the rear center upper
section of the dryer. The ground connection is made to a
copper lug also provided in this area. To gain access, remove
oven rear service cover.
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 dryer data label. 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 ADC
factory.
Important
!
Any burner changes or conversions must be made
by a qualified professional.
The input ratings shown on the dryer data label are for
elevations 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 ADC factory.
Important
!
A strain relief must be used where the input wiring
enters the oven assembly.
Important
!
This gas dryer is not provided with an internal gas
supply shutoff and an external gas supply shutoff
must be provided.
Gas Information ______________________
Technical Gas Data
It is your responsibility to have all plumbing connections made
by a qualified professional to ensure that the gas plumbing
installation is adequate and conforms with local and state
regulations or codes. In the absence of such codes, all
plumbing connections, materials, and workmanship must
conform to the applicable requirements of the National Fuel
Gas Code ANSI Z223.1-LATEST EDITION, or in Canada, the
Canadian Installation Codes CAN/CGA-B149.1-M91 (Natural
Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas) or
LATEST EDITION.
Gas Specifications
Failure to comply with these codes or ordinances,
and/or the requirements stipulated in this manual,
can result in personal injury and improper operation
of the dryer.
!
The dryer and its individual shutoff valves must be
disconnected from the gas supply piping system during any
pressure testing of that system at test pressures in excess
of 1/2 psig (3.5 kPa). The dryer must be isolated from the
gas supply piping system by closing its individual manual
shutoff valve during any pressure test of the gas supply
system at test pressures equal to or less than 1/2 psig
(3.5 kPa).
Important
Failure to isolate or disconnect the dryer from supply
as noted can cause irreparable damage to the gas
valve, which will void the warranty.
Warning
!
Natural
Liquid
Propane
Manifold Pressure*
In-Line Pressure
3.5 inches W.C.
6.0-12.0 inches W.C.
8.7 mb
14.92 - 29.9 mb
10.5 inches W.C.
11.0 inches W.C.
26.1 mb
27.4 mb
Shaded areas are stated in metric equivalents
Important
!
Type of Gas
Fire or explosion could result due to failure of isolating
or disconnecting the gas supply as noted.
* Measured at gas valve pressure tap when the gas valve is on.
Gas Connections
Inlet connection ..................... 3/4” N.P.T.
Inlet supply size .................... 3/4” Diameter Pipe (min.)
Btu/hr input (per dryer) ......... 160,000 (40,320 kcal/hr)
Natural Gas
Regulation is controlled by the dryer’s gas valve’s internal
regulator. Incoming supply pressure must be consistent
between a minimum of 6.0 inches (14.92 mb) and a maximum
of 12.0 inches (29.9 mb) water column (W.C.) pressure.
Liquid Propane (L.P.) Gas
Dryers made for use with L.P. gas have the gas valve’s internal
pressure regulator blocked open so that the gas pressure
must be regulated upstream of the dryer. The pressure
measured at each gas valve pressure tap must be a
consistent 10.5 inches (26.1 mb) water column. There is no
regulator or regulation provided in an L.P. dryer. The water
column pressure must be regulated at the source (L.P. tank)
or an external regulator must be added to each dryer.
Gas Supply
The gas dryer installation must meet the American National
Standard...National Fuel Gas Code ANSI Z223.1-LATEST
EDITION, or in Canada, the Canadian Installation Codes CAN/
CGA-B149.1 M91 (Natural Gas) or CAN/CGA-B149.2-M91 (L.P.
Gas) or LATEST EDITION, as well as local codes and
ordinances and must be done by a qualified professional.
113345-9
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11
TYPE OF GAS
Natural
Liquid Propane
Btu/hr
Rating
kcal/hr
Rating
Qty.
D.M.S.*
Part No.
Qty.
D.M.S.*
Part No.
160,000
40,320
3
#29
140820
3
#48
140804
Consistent gas pressure is essential at all gas connections.
It is recommended that a 3/4-inch (19.05 mm) pipe gas loop
be installed in the supply line servicing a bank of dryers. An
in-line pressure regulator must be installed in the gas supply
line (header) if the (natural) gas pressure exceeds 12.0
inches (29.9 mb) of water column pressure (W.C.).
Liquid Propane Conversion Kit Part Number 881598
Note
Shaded area is stated in metric equivalent
A water column (W.C.) test pressure of 3.5 inches
(8.7 mb) for natural gas and 10.5 inches (26.1 mb)
for liquid propane (L.P.) dryers is required at the
gas valve pressure tap of each dryer for proper and safe
operation.
!
* Drill Measurement Size (D.M.S.) equivalents are as follows:
Natural Gas ............. #29 = 0.1360” (3.4544 mm).
Liquid Propane Gas .. #48 = 0.0760” (1.9304 mm).
Piping/Connections
All components/materials must conform to National Fuel Gas
Code Specifications ANSI Z223.1-LATEST EDITION, or in
Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGAB149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION
(for General Installation and Gas Plumbing), as well as local
codes and ordinances and must be done by a qualified
professional. It is important that gas pressure regulators
meet applicable pressure requirements, and that gas meters
be rated for the total amount of all the appliance Btus being
supplied.
A 1/8” N.P.T. plugged tap, accessible for a test gauge
connection, must be installed in the main gas supply line
immediately upstream of each dryer.
Important
!
Pipe joint compounds that resist the action of natural
gas and L.P. gas must be used.
Test all connections for leaks by brushing on a soapy water
solution (liquid detergent works well).
The dryer is provided with a 3/4” N.P.T. inlet pipe connection
located at the rear upper left side of the dryer. The minimum
pipe size (supply line) to the dryer is 3/4” diameter. For ease
in servicing, the gas supply line of each dryer must have its
own 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).
The size of the main gas supply line (header) will vary
depending on the distance this line travels from the gas meter
or, in the case of (L.P.) gas, the supply tank, other gas-operated
appliances on the same line, etc. Specific information
regarding supply line size should be determined by the gas
supplier.
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).
!
Warning
!
Note
!
Note
Undersized gas supply piping can create a low or
inconsistent pressure, which will result in erratic
operation of the burner ignition system.
Never test for leaks with a flame!!!
Steam Information _____________________
It is your responsibility to have all plumbing connections made
by a qualified professional to ensure that the steam plumbing
installation is adequate and conforms with local and state
regulations or codes.
Important
!
Failure to comply with the requirements stipulated
in this manual can result in component failure,
which will void the warranty.
Note
The dryer is manufactured with a pneumatic
(piston) damper system, which requires an
external supply of air of 0.75 cfh at 80 psi ± 10
psi (0.02 cmh at 5.52 bar ± 0.68 bar]).
!
Steam Coil pH Level
The normal pH level for copper type steam coils must be
maintained between a value of 8.5 to 9.5. For steel type
steam coils the pH level must be maintained between a
value of 9.5 to 10.5. These limits are set to limit the acid
attack of the steam coils.
Important
!
Coil failure due to improper pH level will void the
warranty.
Steam Requirements – High Pressure
Inlet: 1” supply line connection, qty. one (1) at top manifold.
Return: 1” return line connection, qty. one (1) at bottom
manifold.
12
American Dryer Corp.
113345-9
Operating Steam Pressure
Maximum
125 psig*
Heat Input (Normal Load)
Consumption (Approximate)
861.84 kPa
4.2 Bhp
144.7 lbs/hr
65.7 kg/hr
Shaded areas are stated in metric equivalents
*The minimum operating pressure is 100 psig (689.47 kPa) for optimum results.
Installation Instructions
To ensure an adequate supply of steam is provided, be sure
that the steam supply lines and steam return lines are sized
and laid out as stipulated in this manual. Inadequate steam
supply lines and steam return lines or improper steam
plumbing will result in poor performance and can cause
component failure. Clean, dry steam must be provided to the
dryer.
Important
!
Steam coil failure due to water hammer by wet steam
will void the warranty.
The pressure of the condensate in the steam supply line will
cause water hammer and subsequent heat exchanger
(steam coil) failure. The steam supply connection into the
main supply line must be made with a minimum 10-inch
(25.4 cm) riser. This will prevent any condensate from draining
towards the dryer.
113345-9
The steam supply line to the dryer must include a 12-inch
(30.48 cm) riser along with a drip trap and check valve. This
will prevent any condensate from entering the steam coil.
Flexible hoses or couplings must be used. The dryer vibrates
slightly when it runs and this will cause the steam coil
connections to crack if they are hard piped to the supply and
return mains.
Shutoff valves for each dryer should be installed in the supply
line, return line, and drip trap return line. This will allow the
dryer to be isolated from the supply main and the return main
if the dryer needs maintenance work.
Install an inverted bucket steam trap and check valve at least
12-inches (30.48 cm) below the steam coil as close to the
coil as possible; a trap with a capacity of 400 lbs (181.5 kg) of
condensate per hour at 125 psi (8.6 bar) is needed for each
unit.
The supply line and the return line should be insulated. This
will save energy and provide for the safety of the operator and
maintenance personnel.
Water pockets in the supply line, caused by low points, will
provide wet steam to the coil possibly causing steam coil
damage. All horizontal runs of steam supply piping should
be pitched 1/4-inch (6.35 mm) for every 1 foot (0.30 meters)
back towards the steam supply header causing the
condensate in the line to drain to the header. Install a bypass
trap in any low point to eliminate wet steam.
www.amdry.com
13
Steam Damper Air System Connections
The dryer is manufactured with a pneumatic (piston) damper
system, which requires an external supply of compressed
air. The air connection is made to the steam damper solenoid
valve, which is located at the rear inner top area of the dryer
just in front of the electric service relay box.
Air Requirements
COMPRESSED
AIR SUPPLY
AIR PRESSURE
Normal
80 psi
5.51 bar
Minimum Supply
70 psi
4.82 bar
Maximum Supply
90 psi
6.21 bar
Shaded areas are stated in metric equivalents
Air Connection
Air connection to system — 1/8” N.P.T.
No air regulator or filtration is provided with the dryer. External
regulation/filtration of 80 psi (5.52 bar) must be provided. It is
suggested that a regulator/filter gauge arrangement be
added to the compressed air line just before the dryer
connection. This is necessary to ensure that correct and
clean air pressure is achieved.
Steam Damper Air Piston (Flow Control) Operation
Adjustment
Although the steam damper operation was tested and
adjusted prior to shipping at 80 psi (5.52 bar), steam damper
operation must be checked before the dryer is put into
operation. Refer to the previous page for instructions to check
steam damper operation. If steam damper adjustment is
necessary, locate the flow control valve and make the
necessary adjustments as noted below.
Steam System Operation
The steam damper shown in Diagram 1, allows the coil to
stay constantly charged eliminating repeated expansion and
contraction. When the damper is opened, the air immediately
passes through the already hot coil, providing instant heat to
start the drying process. When the damper is closed, ambient
air is drawn directly into the basket (tumbler), allowing a rapid
cool down (Diagram 2).
Diagram 1 shows the damper in the heating (open) mode,
allowing heat into the basket (tumbler).
Diagram 2 shows the damper in the cool down (closed)
mode, pulling ambient air directly into the basket (tumbler)
without passing through the coils.
Note
!
14
With the dryer off or with no air supply, the steam
damper is in cool down mode as shown in Diagram
2.
American Dryer Corp.
113345-9
Preparation For Operation/Start-Up ___
The following items should be checked before attempting to
operate the dryer:
A gas pressure test should be taken at the gas valve pressure
tap of each dryer to ensure that the water column (W.C.)
pressure is correct and consistent.
Note
• Read
all “CAUTION,” “WARNING,” and “DIRECTION”
labels attached to the dryer.
• Check incoming supply voltage to be sure that it is the
same as indicated on the dryer data label. In the case of
208 VAC or 230/240 VAC, the supply voltage must match
the electric service specifications of the data label exactly.
• Gas Models – check to ensure that the dryer is connected
to the type of heat/gas indicated on the dryer data label.
• Gas
and Electric Models – the sail switch damper
assembly was installed and adjusted at the factory prior
to shipping. However, each sail switch adjustment must
be checked to ensure that this important safety control is
functioning. (Refer to Preoperational Tests for Sail Switch
Adjustment).
• Gas Models – be sure that all gas shutoff valves are in
the open position.
• Be sure all side and base panels are on the dryer.
• Check all service doors to ensure that they are closed
and secure.
• Be sure the lint door is securely in place.
• Rotate the basket (tumbler/drum) by hand to be sure it
moves freely.
• Check
bolts, nuts, screws, terminals, and fittings for
security.
• Steam Models – check to ensure air supply (80 psi [5.52
!
Natural Gas .............. 3.5 Inches (8.7 mb) W.C.
Liquid Propane (L.P.) Gas ....... 10.5 Inches (26.1 mb) W.C.
Important
There is no regulator provided in an L.P. dryer. The
water column pressure must be regulated at the
source (L.P. tank), or an external regulator must be
added to each dryer.
!
Steam Dryers
Check to ensure that steam damper is functioning properly
The steam damper should not “slam” (open or closed) when
it reaches the end of (piston) travel. Additionally, the steam
damper should not bind and/or stop during travel. If either of
these conditions exist refer to air adjustment instructions in
the Steam Information section.
Electrically Heated Dryers
Check to ensure that electric oven/contactor assembly is
activating.
Make a complete operational check of all safety related
circuits:
• Door switch(es)
• Hi-Limit thermostats
• Sail switch (for gas and electric models only)
bar]) is connected to the dryers.
• Steam Models – check to ensure all steam shutoff valves
are open.
• Steam Models – check steam damper operation.
• Check basket (tumbler) bearing setscrews to ensure they
are all tight.
Preoperational Tests __________________
All dryers are thoroughly tested and inspected before leaving
the factory. However, a preoperational test should be
performed before the dryer is publicly used. It is possible
that adjustments have changed in transit or due to marginal
location (installation) conditions.
Turn on electric power to the dryer.
Open all shutoff valves (gas and steam models only).
Refer to the Operating Instructions for starting your particular
model dryer.
Gas Dryers
When a gas dryer is first started (during initial start-up), it has
a tendency not to ignite on the first ignition attempt. This is
because the gas supply piping is filled with air, so it may take
a few minutes for the air to be purged from the lines.
Note
!
During the purging period, check to be sure that all
gas shutoff valves are open.
Gas dryers are equipped with an ignition system, which has
internal diagnostics. If ignition is not established within three
(3) times, the heat circuit in the module will lock out until it is
manually reset. To reset the ignition system, open and close
the main door and restart the dryer.
113345-9
Water column pressure requirements (measured at
the pressure tap of the gas valve body):
Note
To check for proper sail switch operation (for gas and
electric models only), open the main door and while
holding main door switch plunger in, start dryer.
Dryer should start but heat circuit should not be activated
(on). If the heat system is activated, the sail switch is
improperly adjusted and must be adjusted by bending the
actuator arm of the sail switch toward the burner box. If the
actuator arm is bent too far toward the burner box of the
dryer, the dryer may not have heat when needed. After any
adjustment to the sail switch, the above procedure must be
repeated to verify proper operation of the sail switch.
!
The dryer should be operated through one (1) complete cycle
to ensure that no further adjustments are necessary and that
all components are functioning properly.
Basket (Tumbler) Coating
The basket (tumbler) is treated with a protective coating. We
suggest dampening old garments or cloth material with a
solution of water and nonflammable mild detergent and
tumbling them in the basket (tumbler) to remove this coating.
Make a complete operational check of all operating controls.
For microprocessor models check controller (computer)
programs/selections. Each microprocessor controller
(computer) has been preprogrammed by the factory with the
most commonly used parameter (program) selections. If
computer program changes are required, refer to the
computer programming manual, which was shipped with
the dryer.
www.amdry.com
15
Check the electric service phase sequence (3-phase [3ø]
models only). While the dryer is operating, check to see if the
blower wheel (impellor/fan) is rotating in the proper direction.
Looking from the front, the blower wheel (impellor/fan) should
spin in the clockwise (CW) direction. If it is, the phasing is
correct. If the phasing is incorrect, reverse two (2) of the three
(3) leads at connections L1, L2, and L3 of the power supply
to the dryer.
Important
If the blower wheel (impellor/fan) is rotating in the
wrong direction, it will drastically reduce drying
efficiency and it can also cause premature
component failure.
!
Reversing basket (tumbler) dryers should never be operated
with less than a 36 lb (16 kg) load (dry weight), since the
load’s weight effects the basket (tumbler) coast time during
a direction reversal command. It is important that the basket
(tumbler) comes to a complete stop prior to starting in
opposite direction.
Microprocessor Models
Spin and dwell (stop) times are not adjustable in the Automatic
Mode and have been preprogrammed into the microprocessor
controller (computer) for 120-seconds spin time in the forward
direction, 120-seconds in the reverse direction and a
5-second dwell (stop) time.
Once the Cool Down Cycle begins at the end of the heat
cycle, the L.E.D. display will read “COOL DOWN TEMP ___/
___ MINUTES REMAINING”. At the end of the heat cycle, the
dryer will shut off the heat and continue the fan and basket
(tumbler) until the Cool Down Time or temperature is reached.
Important
For more detailed information regarding the
microprocessor controller (computer) on your dryer,
refer to the microprocessor user’s manual included
with the dryer.
!
Dual Timer Dryers
• Turn drying timer knob for a time of 20 minutes.
• Select “High Temp.”
• Push “Push to Start” switch.
• To stop dryer, open the main door.
Spin and dwell (stop) times are adjustable at the reversing
timer.
Spin and dwell (stop) times are adjustable in the Manual
(timed) Mode.
Dual Timer Models
Both dwell (stop) time and the basket (tumbler) spin time are
adjustable.
Check to ensure that all setscrews (i.e., basket [tumbler] drive,
idler, etc.) are tight.
Preoperational Instructions ___________
The light emitting diode (L.E.D.) display reads “READY” (no
cycle in progress).
Press the letter on the keyboard (touch pad) corresponding
to the cycle desired (i.e., key “D”).
Note
!
“0-40” will require the “Start/Enter” l key to be
pressed after the number is selected in order to
accept the selection and start drying.
The dryer will then start. (I.E., blower, basket [tumbler], and
heat).
The L.E.D. display will read “MANUAL DRYING CYCLE D,
00:00 MIN REMAIN”.
If the dryer is to be shutdown (taken out of service) for a
period of time, the following must be performed:
Discontinue power to the dryer either at the external disconnect
switch or the circuit breaker.
Discontinue the heat supply:
Gas Models – discontinue the gas supply.
• Shut off external gas supply shutoff valve.
• Shut off internal gas supply shutoff valve located in the
gas valve burner area.*
Steam Models – discontinue the steam supply.
Note
!
Shutdown Instructions _________________
Press and hold the “Up Arrow” to view the basket
(tumbler) temperature at any time.
The dryer can be stopped at any time by pressing
the “Stop/Clear” O key, at this time the dryer will go into a
cycle pause. If the “Stop/Clear” O key is pressed again at
this point, the cycle that was in progress will be cancelled and
returned to the “READY” state.
• Shut off external (location furnished) shutoff valve.
• Shut off internal steam valves in the supply lines and the
return lines.
* For models where so equipped.
Press and hold the “Down Arrow” to view the basket (tumbler)
RPM.
When the programmed drying time has expired, the Phase 7
non-coin microprocessor controller (computer) will proceed
into the Cool Down Cycle.
16
American Dryer Corp.
113345-9
SERVICE/PARTS INFORMATION ____
Service _______________________________
Service must be performed by a qualified trained technician,
service agency, or gas supplier. If service is required, contact
the reseller from whom the ADC equipment was purchased.
If the reseller cannot be contacted or is unknown, contact the
ADC Service Department for a reseller in your area.
Returning Warranty Parts______________
All dryer or parts warranty claims or inquiries should be
addressed to the ADC Warranty Parts Department. To
expedite processing, the following procedures must be
followed:
No parts are to be returned to ADC without prior written
authorization (“Return Material Authorization” [R.M.A.]) from
the factory.
Note
When contacting the ADC Service Department, be
sure to give them the correct model number and
serial number so that your inquiry is handled in an
expeditious manner.
!
Parts __________________________________
Replacement parts should be purchased from the reseller
from whom the ADC equipment was purchased. If the reseller
cannot be contacted or is unknown, contact the ADC Parts
Department for a reseller in your area. Parts may also be
purchased directly from the factory by calling the ADC Parts
Department at (508) 678-9000 or you may FAX in your order
at (508) 678-9447.
Note
When ordering replacement parts from the ADC
reseller or the ADC factory be sure to give them the
correct model number and serial number so that
your parts order can be processed in an expeditious manner.
!
WARRANTY INFORMATION _______
Returning Warranty Card _____________
Before any dryer leaves the ADC factory test area, a warranty
card is placed on the back side of the main door glass. These
warranty cards are intended to serve the customer where we
record the individual installation date and warranty information
to better serve you should you file a warranty claim.
If a warranty card did not come with your dryer, contact the
ADC Warranty Department or the ADC Service Department
at (508) 678-9000.
A separate warranty card must be completed and
returned for each individual dryer.
Note
!
Be sure to include the installation date when returning
the warranty card(s).
Warranty ______________________________
For a copy of the ADC commercial warranty covering your
particular dryer(s), contact the ADC reseller from whom you
purchased the equipment and request a dryer warranty form.
If the reseller cannot be contacted or is unknown, warranty
information can be obtained from the factory by contacting
the ADC Warranty Department at (508) 678-9000.
Note
Whenever contacting the ADC factory for warranty
information, be sure to have the dryer’s model
number and serial number available so that your
inquiry can be handled in an expeditious manner.
!
113345-9
!
An R.M.A. is valid for only thirty (30) days from date of
issue.
The R.M.A. issued by the factory, as well as any other
correspondence pertaining to the returned part(s), must be
included inside the package with the failed merchandise.
Each part must be tagged with the following information:
• Model number and serial number of the dryer from which
part was removed.
• Nature of failure (be specific).
• Date of dryer installation.
• Date of part failure.
• Specify whether the part(s)
being returned is for a
replacement, a credit, or a refund.
Note
!
If a part is marked for a credit or a refund, the invoice
number covering the purchase of the replacement
part must be provided.
Warranty tags (ADC P/N 450064) are available at “no charge”
from ADC upon request.
The company returning the part(s) must clearly note the
complete company name and address on the outside of the
package.
All returns must be properly packaged to ensure that they
are not damaged in transit. Damage claims are the
responsibility of the shipper.
Important
Important
!
Note
!
No replacements, credits, or refunds will be issued
for merchandise damaged in transit.
All returns should be shipped to the ADC factory in such a
manner that they are insured and a proof of delivery can be
obtained by the sender.
Shipping charges are not the responsibility of ADC. All returns
should be “prepaid” to the factory. Any “C.O.D.” or “Collect”
returns will not be accepted.
Important
No replacements, credits, or refunds will be issued if
the claim cannot be processed due to insufficient
information. The party filing the claim will be notified
in writing, either by “FAX” or “Certified Mail – Return Receipt
Requested,” as to the information necessary to process claim.
If reply is not received by the ADC warranty department within
thirty (30) days from the fax/letter date, then no replacements,
credits, or refunds will be issued, and the merchandise will
be discarded.
!
www.amdry.com
17
ROUTINE MAINTENANCE ________
Cleaning ______________________________
A program and/or schedule should be established for
periodic inspection, cleaning, and removal of lint from various
areas of the dryer, as well as throughout the ductwork system.
The frequency of cleaning can best be determined from
experience at each location. Maximum operating efficiency
is dependent upon proper air circulation. The accumulation
of lint can restrict this airflow. If the guidelines in this section
are met, an ADC dryer will provide many years of efficient,
trouble free, and most importantly safe operation.
Warning
!
Lint from most fabrics is highly combustible. The
accumulation of lint can create a potential fire
hazard.
Keep dryer area clear and free from combustible materials,
gasoline, and other flammable vapors and liquids.
Note
!
Suggested time intervals shown are for average usage
which is considered six (6) to eight (8) operational
(running) hours per day.
Important
!
Dryer produces combustible lint and must be
exhausted to the outdoors. Every 6 months, inspect
the exhaust ducting and remove any lint buildup.
Suggested Cleaning Schedule
Every Second or Third Load
Clean the lint screen every second or third load. A clogged
lint screen will cause poor dryer performance. The lint screen
is located behind the lint door in the base of the dryer. Open
the lint door, brush the lint off the lint screen, and remove the
lint. Inspect lint screen and replace if torn.
Note
!
The frequency of cleaning the lint screen can best be
determined from experience at each location.
Weekly
Clean lint accumulation from lint chamber, thermostat, and
microprocessor temperature sensor (sensor bracket) area.
Warning
!
To avoid the hazard of electrical shock, discontinue
electrical supply to the dryer.
Steam Models
Clean the steam coil fins. We suggest using compressed
air and a vacuum cleaner with brush attachment.
Note
!
To prevent damage, avoid cleaning and/or touching
ignitor/flame-probe assembly.
Every 6 Months
Inspect and remove lint accumulation in customer furnished
exhaust ductwork system and from dryer’s internal exhaust
ducting.
Note
!
The accumulation of lint in the exhaust ductwork can
create a potential fire hazard.
Do not obstruct the flow of combustion and
ventilation air. Check customer furnished back draft dampers
in the exhaust ductwork. Inspect and remove any lint
accumulation, which can cause the damper to bind or stick.
A back draft damper that is sticking partially closed can result
in slow drying and shutdown of heat circuit safety switches or
thermostats.
When cleaning the dryer cabinet(s), avoid using harsh
abrasives. A product intended for the cleaning of appliances
is recommended.
Adjustments ___________________________
7 Days After Installation and Every 6 Months
Thereafter
Inspect bolts, nuts, screws, setscrews, grounding
connections, and nonpermanent gas connections (unions,
shutoff valves, and orifices). Motor and drive belts should be
examined. Cracked or seriously frayed belts should be
replaced. Tighten loose V-belts when necessary. Complete
operational check of controls and valves. Complete
operational check of all safety devices (door switches, lint
drawer switch, sail switch, burner and hi-limit thermostats).
Lubrication _____________________________
The motor bearings and under normal/most conditions the
basket (tumbler) bearings are permanently lubricated. It is
physically possible to relubricate the basket (tumbler)
bearings if you choose to do so even though this practice
may not be necessary. Use Shell Alvania #2 grease or its
equivalent. Generically, this grease would be described as
an NLGI grade 2 multipurpose industrial grease with a lithium
thickener and mineral base oil. The basket (tumbler)
bearings used in the dryer do not have a grease fitting.
Provisions are made in the bearings housing for the addition
of grease fitting which can be obtained elsewhere.
Warning
When cleaning steam coil fins, be careful not to bend
the fins. If fins are bent, straighten by using a fin
comb, which is available from local air conditioning
supply house.
!
90 Days
• Remove lint from around basket (tumbler), drive motors,
and surrounding areas.
• Remove lint from gas valve burner area with a dusting
brush or vacuum cleaner attachment.
• Clean any lint accumulation in and around both the blower
and drive motor casing openings.
18
American Dryer Corp.
113345-9
PROCEDURE FOR FUNCTIONAL
CHECK OF REPLACEMENT
COMPONENTS _________________
Microprocessor Controller (Computer)
Board _________________________________
Upon completing installation of the replacement
microprocessor controller (computer) board, reestablish
power to the dryer.
Start the drying cycle by pressing any of the preset cycles in
letters A-F.
For Models with Johnson Direct Spark
Ignition (DSI) Controller (G760) ________
Theory of Operation:
Start the drying cycle. When the gas burner ignites within the
chosen trial for ignition time (6-seconds), the flame sensor
detects gas burner flame and signals the DSI module to
keep the gas valve open as long as there is a call for heat.
The DSI module will “Lock Out” if the gas burner flame is not
sensed at the end of the trial for ignition period. The trial for
ignition period will be repeated for a total of three (3) retries/
trials (the initial try and two [2] more retries/trials). If the flame
is not sensed at the end
of the third retry/trial
(inter-purge period
of 30-seconds) the
DSI module will
“Lock Out” (light
emitting
diode
[L.E.D.] diagnostic
indicator flashes).
A steady L.E.D.
indicator indicates
normal operation.
No L.E.D. indicator
indicates a power
or an internal
failure
has
occurred.
For Models with Fenwal Controls DSI
Module (128937) _______________________
Verify that the applicable indicator lights on the
microprocessor controller (computer) board are lit. (Refer to
the illustration below.)
Theory of Operation:
Start the drying cycle. When the gas burner ignites within the
chosen trial for ignition time (8-seconds), the flame sensor
detects gas burner flame and signals the DSI module to
keep the gas valve open as long as there is a call for heat.
The DSI module will “Lock Out” if the gas burner flame is not
sensed at the end of the trial for ignition period. The trial for
ignition period will be repeated for a total of three (3) retries/
trials (the initial try and two [2] more retries/trials). If the flame
is not sensed at the end of the third retry/trial (inter-purge
period of 30-seconds), the DSI module will “Lock Out” (a red
L.E.D. diagnostic indicator will flash).
An unlit red L.E.D.
diagnostic indicator
indicates normal
operation.
A lit green L.E.D.
diagnostic indicator
indicates
dryer
controller is calling
for heat and that all
interlocks have
been satisfied.
113345-9
www.amdry.com
19
DATA LABEL INFORMATION ______
MANUAL RESET BURNER HI-LIMIT
INSTRUCTIONS ________________
Phase 7 ________________________________
This dryer was manufactured with a manual reset burner
Hi-Limit thermostat, which is monitored by the Phase 7
computer. If the burner Hi-Limit is open prior to the start of
the drying cycle, the dryer will start momentarily and then
shut down, the Phase 7 computer will display “BURNER HIGH
LIMIT FAULT” with an audio indication.
If the burner Hi-Limit opens during a drying cycle, the Phase
7 computer will also display the same error code described
above, along with an audio indication. If the drum temperature
is above 100° F (38° C), the dryer will continue to run with no
heat for 3 minutes or until the drum temperature has dropped
below 100° F (38° C). The clear/stop button on the Phase 7
keyboard (touch pad) must be pressed to clear the error
condition. The open burner Hi-Limit must be reset “manually”
prior to the start of the next cycle.
Dual Timer _____________________________
This dryer was manufactured with a manual reset burner
Hi-Limit thermostat. If the burner Hi-Limit is open prior to the
start of the drying cycle, or during the cycle, the dryer will not
recognize the open state of the burner Hi-Limit and will start
or continue through the drying cycle with no heat. Manual
reset Hi-Limit must be reset manually.
When contacting American Dryer Corporation, certain
information is required to ensure proper service/parts
information from ADC. This information is on the data label
that is affixed to the upper left side panel area behind the top
control (access) door. When contacting ADC, please have
the model number and serial number available.
This hi-temperature condition may be caused due to a
restricted exhaust, poor airflow, or improper burner operation.
The location of the burner Hi-Limit is on the right side of the
burner box, looking at the burner from the back of the dryer.
Warning
!
Discontinue power to dryer before attempting to reset
Hi-Limit.
1. Model Number
The model number is an ADC number, which describes
the size of the dryer and the type of heat (gas, electric, or
steam).
2. Serial Number
The serial number allows ADC to gather information on
your particular dryer.
3. Manufacturing Code Number
The manufacturing code number is a number issued by
ADC, which describes all possible options on your
particular model.
4. Type of Heat
This describes the type of heat for your particular dryer:
gas (either natural gas or liquid propane [L.P.] gas),
electric, or steam.
5. Heat Input (for Gas Dryers)
This describes the heat input in British Thermal Units
per Hour (Btu/hr).
6. Orifice Size (for Gas Dryers)
Gives the number drill size used.
7. Electric Service
This describes the electric service for your particular
model.
8. Gas Manifold Pressure (for Gas Dryers)
This describes the manifold pressure taken at the gas
valve tap.
20
American Dryer Corp.
113345-9
FIRE SUPPRESSION SYSTEM
(F.S.S.) _____________________
F.S.S. In Action
Installation _____________________________
Requirements
The F.S.S. must be supplied with a minimum water pipe size
of 1/2” and be provided with 40 psi +/- 20 psi (2.75 bar +/1.37 bar) of pressure. For use of optional manual bypass, a
second source with the same piping and pressure
requirements is required.
Flexible 1/2-inch feeds must be provided to avoid damage to
electric water solenoid valve by vibration.
Important
!
Flexible supply line/coupling must be used. Solenoid
valve failure due to hard plumbing connections will
void warranty.
If the rear area of the dryer, or the water supply is located in an
area where it will be exposed to cold/freezing temperatures,
provisions must be made to protect these water lines from
freezing.
Warning
!
If the water in the supply line or water solenoid valve
freezes, the F.S.S. will be inoperative!!
Important
!
The exclusive Fire Suppression System (F.S.S.) will extinguish
fires that may start in the drying basket (tumbler). A series of
sensors positioned throughout the basket (tumbler) and
interfaced with the microprocessor will trigger the F.S.S. water
jet(s) to quickly extinguish the flames. The water jet(s) remain
on for 2 minutes and will automatically activate again if a fire
condition remains or reignites. While the water jet(s) are
activated, the basket (tumbler) will jog to move the water
throughout the load. The microprocessor will display that
the system was activated and will continue to display until
the dryer is attended to.
Water Connections _____________________
The water connection is made to the 3/4”-11.5 NH hose
adapter of the electric water solenoid valve, located at the
rear upper midsection of the dryer (refer to the photo).
The water solenoid valve has a 3/8” M.P.T. connection supplied
with a 3/4”-11.5 NH hose adapter to provide the minimum
1/2-inch supply (feed) line. Flexible supply line/coupling must
be used in an effort to avoid damaging the electric water
solenoid valve.
Before You Start ______________________
Check local codes and permits
Call your local water company or the proper municipal
authority for information regarding local codes.
Important
It is your responsibility to have all plumbing
connections made by a qualified professional to
ensure that the plumbing installation is adequate
and conforms to local, state, and federal regulations or codes.
!
It is the installation or owners responsibility to see that the
necessary or required water, water pressure, pipe size, or
connections are provided. Manufacturer assumes no
responsibility if the F.S.S. is not connected, installed, or
maintained properly.
113345-9
Appliance is to be connected to the water mains using
a new hose-set and the old hose-sets should not be
reused.
Note
The 3/4”-11.5 NH is a standard hose coupling screw
thread. It is not to be confused with 3/4” N.P.T. The
sealing of an NH connection is made with a washer
opposed to the mating threads of an N.P.T. assembly. The
two (2) thread designs are not compatible.
!
Important
Flexible supply line/coupling must be used. Solenoid
valve failure due to hard plumbing connections will
void warranty. It is recommended that a filter or
strainer be installed in the water supply line.
!
www.amdry.com
21
Typical Water Supply
Optional Manual Bypass
Provisions are made in the dryer’s F.S.S. for
the installation of an optional manual
bypass. Depending on the model dryer, the
connections for the manual bypass are
made at the “T” or “four way” fitting located
in the outlet supply side of the water solenoid
valve. The use and connections of this
manual bypass are at the option or discretion
of the owner.
The water connection for the manual bypass
is made to the “T” or “four way” fitting which
has a 3/8” F.P.T. and a coupling must be
used to provide the minimum 1/2” supply
(feed) line.
If the rear area of the dryer, or the water
supply is located in an area where it will be
exposed to cold/freezing temperatures,
provisions must be made to protect these
water lines from freezing.
Warning
!
If the water in the supply line or water
solenoid valve freezes, the F.S.S.
will be inoperative!!
The manual ball cock shutoff valve must be
located outside of the dryer at a distance from the dryer where
it is easily accessible.
Electrical Requirements ______________
No independent external power source or supply connection
is necessary. The 24 volt power to operate the F.S.S. is
accomplished internally in the dryer (from the dryer controls).
Warning
!
Electrical power must be provided to the dryer at all
times. If the main electrical power supply to the
dryer is disconnected, the F.S.S. is inoperative!!
F.S.S. Theory Of Operation ____________
While the dryer is in an idle state, or 20-seconds after the
heat turns off, the Phase 7 control monitors the thermistor
probe, located in the top of the basket (tumbler) chamber,
and records the minimum temperature. If the minimum
recorded thermistor probe temperature is greater than 120°
F (48° C) and the control detects a 50° rise in temperature,
this will be the trip point and the F.S.S. routine will activate.
22
While a drying cycle is in process and the heat has turned on
at least once, the Phase 7 control monitors the exhaust
temperature transducer. If the drying cycle temperature set
point is set greater than 160° F (71° C) and the control detects
an exhaust temperature rise 25° F greater than set point, this
will be the trip point and the F.S.S. routine will activate. If set
point is below 160° F (71° C), the trip point will be 185° F
(85° C).
Once the F.S.S. routine is activated, the control will display
“F.S.S. ACTIVATED” and water will be injected into the basket
(tumbler) chamber. Any time water is being injected into the
basket (tumbler), the basket (tumbler) drive will turn the load
for 1-second every 15-seconds. This process will continue
for a minimum of 2 minutes. After the 2 minutes have elapsed,
the control will check if the temperature remained above trip
point; if so, the water will remain on. The control will continue
to check if the temperature is above trip point every 30seconds. If the water has been on for a constant 10 minutes,
the water will be turned off, regardless of the temperature,
and the control will display “F.S.S. WAS ACTIVATED”. If the
temperature has dropped below trip point, the control will
turn off the water prior to 10 minutes.
American Dryer Corp.
113345-9
System Reset _________________________
After the microprocessor determines that the situation is under
control and shuts the water being injected into the basket
(tumbler) off, the microprocessor display will read “F.S.S. WAS
ACTIVATED”, and the horn/tone will sound until reset manually.
To reset the microprocessor once the control displays “ F.S.S.
WAS ACTIVATED”, press the red “Stop/Clear” key on the
keyboard (touch pad).
F.S.S. Water Valve Check _____________
The operation of the water solenoid valve can be tested to
ensure that the water supply system and valve are functional.
Before attempting a system check, be sure that all water
supply shutoff valves to the dryer are in the Open position; the
dryer must be in the “READY” mode with no cycle loaded or in
progress.
• Press and hold the red “Stop/Clear” key (while in “READY”
mode and no cycle is in progress).
• Press and hold the “A” key.
• Water valve will open and water will be dispensed into
basket (tumbler) area as long as both keys are held.
The Phase 7 non-coin microprocessor controller (computer)
will prompt the user to perform a F.S.S. valve check at every
4000 hours to ensure proper functionality. At the 4000 hour
mark, the control will wait for end of the cycle and then will
prompt the user to “PLEASE EMPTY TUMBLER, THEN PRESS
THE ‘STOP/CLEAR’ AND ‘A’ KEYS TO TEST THE WATER
VALVE.” When the ‘STOP/CLEAR’ and ‘A’ keys are pressed,
the control will activate the F.S.S. water valve for 2 seconds, at
which point the control will prompt the user with the following
message: “IF WATER DID NOT TURN ON, CALL FOR
SERVICE. THANK YOU.”
Shorted Water Valve
This message indicates that the water valve is shorted or
that the wiring to the valve is shorted. If this condition is
detected, the Phase 7 non-coin control will continue to monitor
the condition for a period of 5 minutes before entering F.S.S.
DISABLED mode. Once the condition is corrected, the control
will continue to monitor the condition for 1 minute before exiting
F.S.S. DISABLED mode.
Water Not Connected
This indicates that there is no water pressure at the water
valve. This will occur if water is not connected to the dryer, or
if there is low water pressure in the water line coming to the
dryer. This could also signify a defective pressure switch or
defective wiring to the pressure switch. If this condition is
detected, the Phase 7 non-coin control will continue to monitor
the condition for a period of 5 minutes before entering F.S.S.
DISABLED mode. Once the condition is corrected, the control
will continue to monitor the condition for 1 minute before exiting
F.S.S. DISABLED mode.
Starting a Cycle When Computer is in
“F.S.S. is Disabled” Mode _______________
When the F.S.S. is disabled, the user can still start a cycle.
However, when a cycle is started, the control will display the
following message: “F.S.S. IS DISABLED. PRESS ‘START’
TO CONTINUE.” This message will be displayed every time
a cycle is started, until the disabling condition has been
corrected.
Note
!
The control will not let the user continue until the valve
test has been completed.
F.S.S. Diagnostics _____________________
In the event that the Phase 7 non-coin microprocessor
controller (computer) detects a fault in the F.S.S. system, the
control will display the message “F.S.S. DISABLED…READY.”
To find out why the F.S.S. is disabling, press and hold the red
“Stop/Clear” and green “Start” keys. This will cause the control
to display a diagnostic message, as detailed in the “F.S.S.
Diagnostics Messages” section.
F.S.S. Diagnostics Messages __________
Open Thermistor Probe
This message indicates that the F.S.S. thermistor probe either
is not connected or is damaged. If this condition is detected,
the Phase 7 non-coin control will immediately enter F.S.S.
DISABLED mode.
Shorted Thermistor Probe
This message indicates that the F.S.S. thermistor probe is
damaged or the wiring is shorted. If this condition is detected,
the Phase 7 non-coin control will immediately enter F.S.S.
DISABLED mode.
Disconnected Water Valve
This message indicates that the water valve is open or that it
is not connected to the control. If this condition is detected,
the Phase 7 non-coin control will continue to monitor the
condition for a period of 5 minutes before entering F.S.S.
DISABLED mode. Once the condition is corrected, the control
will continue to monitor the condition for 1 minute before exiting
F.S.S. DISABLED mode.
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