ADC Phase 5 Microprocessor AD-170 User manual

American Dryer Corporation
88 Currant Road
Fall River, MA 02720-4781
Telephone: [phone] / Fax: [phone]
E-mail: [e-mail]
123096MFM/tf ADC Part No. 450400
AD-170
Service Manual
Phase 5 Microprocessor Controls
and
Timer Controls
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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 properly licensed technicians should service this equipment.
OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation/
operator's manual included with the dryer.
WARNING:UNDER NO CIRCUMSTANCES should the door switch or the heat circuit devices
ever be disabled.
WARNING:The dryer must never be operated with any of the back guards, outer tops, or
service panels removed. PERSONAL INJURY or FIRE COULD RESULT.
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.
Important
For your convenience, log the following information:
Replacement parts can be obtained from your distributor or the ADC factory. When ordering replacement parts
from the factory, you can FAX your order to ADC at [phone] or telephone your orders 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.
The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a
composite of the various dryer models. Be sure to check the descriptions of the parts thoroughly before
ordering.
INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE USER
SMELLS GAS MUST BE POSTED IN A PROMINENT LOCATION. THE
INSTRUCTIONS TO BE POSTED SHALL BE OBTAINED FROM THE
LOCAL GAS SUPPLIER.
DATE OF PURCHASE MODEL NO.
DISTRIBUTORS NAME
Serial Number(s)
AD-170
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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 (Occupational Safety and Health
Administration) STANDARDS.
WARNING
The dryer must never be operated with any of the back guards, outer tops,
or service panels removed. PERSONAL INJURY or FIRE COULD
RESULT.
CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR NEAR
THE DRYER(S).
WARNING
CHILDREN SHOULD BE SUPERVISED IF NEAR DRYER(S) IN
OPERATION.
CAUTION
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION.
DRYER(S) SHOULD NEVER BE LEFT UNATTENDED WHILE IN
OPERATION.
CAUTION
VERIFY PROPER OPERATION AFTER SERVICING.
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DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE
VAPOR AND LIQUIDS IN THE VICINITY OF THIS OR ANY OTHER
APPLIANCE.
FOR YOUR SAFETY
DO NOT DRY MOP HEADS IN THE DRYER.
DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES.
IMPORTANT
PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the
equipment and/or specified in the installation/operator's manual included with
the dryer.
Dryer(s) 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 in the front electrical control box
area.
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Table of Contents
SECTION I
Important Information ..................................................................................................................................... 3
A. Safety Precautions .......................................................................................................................................... 3
SECTION II
Maintenance ....................................................................................................................................................... 4
A. Cleaning .......................................................................................................................................................... 4
B. Adjustments .................................................................................................................................................... 5
C. Lubrication ...................................................................................................................................................... 5
SECTION III
Installation Requirements ................................................................................................................................. 6
A. Enclosure, Air Supply, and Exhaust Requirements ........................................................................................ 6
B. Electrical and Gas Requirements .................................................................................................................... 7
C. Operational Service Check Procedure ............................................................................................................ 7
SECTION IV
Desciption of Parts ............................................................................................................................................. 8
A. Computer Panel Assembly.............................................................................................................................. 8
B. Control Box ..................................................................................................................................................... 8
C. DSI Module
(for Gas Models ONLY) ............................................................................................................................... 8
D. Gas Burner Assembly ..................................................................................................................................... 9
E. Drive Motor ..................................................................................................................................................... 9
F. Blower Motor and Impellor
(for 60 Hz Gas Models ONLY) ..................................................................................................................... 9
G. Blower Motor and Impellor
(for 50/60 Hz Steam Models and 50 Hz Gas Models) .................................................................................. 9
H. Idler Assembly .............................................................................................................................................. 10
I. Tumbler Bearing and Pulley Arrangement.................................................................................................... 10
J. Basket (Tumbler) ........................................................................................................................................... 10
K. Main Door Switch ........................................................................................................................................ 11
L. Sail Switch
(for Gas Models ONLY) ............................................................................................................................. 11
M. Hi-Limit
(for Gas Models ONLY) ............................................................................................................................. 11
N. Automatic Reset Thermostat ....................................................................................................................... 12
O. Lint Drawer ................................................................................................................................................... 12
P. Lint Drawer Switch ....................................................................................................................................... 12
Q. Steam Damper System ................................................................................................................................. 12
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SECTION V
Servicing ........................................................................................................................................................... 13
A. Computer Controls ....................................................................................................................................... 14
B. Ignition Controls .......................................................................................................................................... 16
C. Thermostats .................................................................................................................................................. 21
D. Sail Switch Assembly
(for Gas Models ONLY) ............................................................................................................................. 22
E. Front Panel and Main Door Assemblies ....................................................................................................... 23
F. Pulleys .......................................................................................................................................................... 26
G. Basket Assembly........................................................................................................................................... 28
H. Bearings
(refer to illustrations in Section F "Pulleys") .............................................................................................. 30
I. V-Belts
(refer to illustrations in Section F "Pulleys") .............................................................................................. 32
J. Motors .......................................................................................................................................................... 33
K. Impellor ........................................................................................................................................................ 35
L. Lint Drawer Assembly ................................................................................................................................. 35
SECTION VI
Troubleshooting ............................................................................................................................................... 36
1. No display on computer ............................................................................................................................. 36
2. Computer will not accept key pad entries .................................................................................................. 36
3. Dryer will not start, but computer display indicators are on ...................................................................... 37
4. Drive motor runs, burner is on, but basket will not turn ............................................................................ 37
5. Drive motor and blower start, computer display heat indicator is on, but there is no heat ........................ 37
6. Dryer operates, probe sparks, but gas does not flow .................................................................................. 38
7. Dryer operates, probe sparks but there is no ignition even though gas is evident ..................................... 38
8. Dryer operates but is taking too long to dry ............................................................................................... 38
9. Thermal overload for drive motor is tripping ............................................................................................. 39
10. Overload for impellor (fan) motor is tripping ............................................................................................. 39
11. Dryer is cycling on burner hi-limit safety thermostat ................................................................................. 39
12. Display reads "dSFL" (Dryer Sensor Circuit Failure)................................................................................. 40
13. Dryer does not start...display reads "door" .................................................................................................. 40
14. There is excessive vibration coming from the basket (tumbler) ................................................................. 40
SECTION VII
Electrical Troubleshooting .............................................................................................................................. 41
A. Phase 5 OPL System Diagnostics................................................................................................................. 42
B. LED Display Indicators ................................................................................................................................ 43
C. LED Display/Codes ...................................................................................................................................... 46
D. Computer Logic and Wiring Diagram .......................................................................................................... 49
SECTION VIII
Technical Information ..................................................................................................................................... 56
A. Motor Plate (High and Low Voltage) ........................................................................................................... 56
B. Data Label ..................................................................................................................................................... 57
C. Using a Manometer....................................................................................................................................... 58
D. AD-170 Tool List .......................................................................................................................................... 59
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SECTION I
A. Safety Precautions
1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other
appliance.
2. 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.
3. Dryer must be exhausted to the outdoors.
4. Although ADC's dryer is a very versatile machine, 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" cleaners. Fire or
explosion could result.
WARNING: DO NOT dry rags or articles coated with gasoline, kerosene, paint, or wax. Fire or
explosion could result.
WARNING: DO NOT dry mopheads. 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 rubberlike materials. Drying in a heated tumbler may damage
plastic or rubber and also may be a fire hazard.
5. A program should be established for the inspection and cleaning of lint in the burner area and exhaust duct
work. The frequency of cleaning can best be determined from experience at each location.
WARNING: The collection of lint in the burner area and exhaust duct work can create
a potential fire hazard.
6. For personal safety, the dryer must be electrically grounded in accordance with local codes and/or the
National Electric Code ANSI/NFPA No. 70-LATEST EDITION.
7. Under no circumstances should the dryer door or lint drawer switch(es) or heat safety devices ever be
disabled.
8. Read and follow ALL causion and direction labels attached to dryer.
WARNING: CHILDREN SHOULD NOT BE ALLOWED TO PLAY ON OR IN THE
DRYER(S). CHILDREN SHOULD BE SUPERVISED IF NEAR DRYER(S)
IN OPERATION.
Important Information
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A. 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 duct work 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.
SUGGESTED INTERVAL FUNCTION
DAILY Clean Lint screen. Inspect lint screen and replace if torn.
90 DAYS Remove lint accumulation from lint chamber thermostats and sensors.
WARNING: To avoid the hazard of electrical shock, discontinue electrical supply to dryer.
90 DAYS Remove lint from the motor air vents and surrounding area.
90 DAYS Inspect and tighten ALL set screws (i.e.; pulleys, idler bearings,
tumbler bearings).
IMPORTANT: Lint accumulation will restrict internal motor air flow, causing overheating and
irreparable damage. Motor failure due to lint accumulation will VOID THE
MANUFACTURER'S WARRANTY.
120 DAYS On gas and electric models remove lint from gas burner area with a
dusting brush or vacuum cleaner attachment.
On steam dryers, clean the coil. Proper cleaning of steam coils is
necessary to prevent lint build-up between the fins. When cleaning the
coil, be extremely careful not to bend the aluminum fins, which will
also reduce airflow. If the fins are bent, straighten them by using a
comb. Fin combs are available from local air conditioning supply
houses. Regular cleaning will prevent lint build-up and blockage of
the coil.
SECTION II
Routine Maintenance
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6 MONTHS Inspect and remove lint accumulation in customer-furnished exhaust
duct work system. Inspect exhaust back draft dampers to insure they
are not binding. Inspect and remove ALL lint accumulation from in
and around control box area, including coin acceptors. Clean lint
accumulation from around tumbler wrapper area.
WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCT WORK CAN
CREATE A POTENTIAL FIRE HAZARD.
AS REQUIRED In cleaning and care of the cabinet, avoid using harsh abrasives. A
product intended for the cleaning of appliances is recommended.
B. Adjustments
SUGGESTED INTERVAL FUNCTION
6 MONTHS Motor and drive beltsshould be examined. Cracked or seriously frayed
belts should be replaced. Tighten loose belts when necessary, and
check belt alignment.
6 MONTHS Complete operational check of controls and valves.
6 MONTHS Complete operational check of ALL safety devices (door switches,
sail switch, burner and lint chamber thermostats.)
12 MONTHS Inspect bolts, nuts, screws, non-permanent gas connections, (unions,
orifices, etc.) electrical terminals, and grounding connections.
C. Lubrication
Lubrication is necessary on the fan bearings (2) 50 & 60Hz steam models, and 50Hz gas models ONLY. This
should be performed every 90 days.
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Installation should be performed by competent technicians in accordance with local and state codes. In the
absence of these codes, installation must conform to applicable AMERICAN NATIONAL STANDARDS:
National Fuel Gas Code ANSI Z223.1-LATEST EDITION
and/or
National Electric Code ANSI/NFPA No. 70-LATEST EDITION
A. Enclosure, Air Supply, and Exhaust Requirements
NOTE: The following information is very brief and general. For detailed description, refer
to the Installation Manual supplied with dryer.
Bulkheads and partitions around the dryer should be made of noncombustible materials. Allowancesshould be
made for the opening and closing of the control door and lint door. Also, allowancesshould be made in the rear
for ease of maintenance. (Refer to appropriate Installation Manual for recommended distances and minimum
allowances required.)
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 on gas dryers may result, and you also could have premature motor failure
from overheating. The air supply must be given careful consideration to insure proper performance of each
dryer.
IMPORTANT: Make-up air must be provided from a source free of dry cleaning fumes.
Make-up air that is contaminated by dry cleaning fumes will result in
irreparable damage to motors and other dryer components.
Exhaust duct work should be designed and installed by a competent technician. Improperly sized duct work
will create excessive back pressure which will result in slow drying, increased use of energy, and shutdown of
the burner by the airflow (sail) switch, burner hi-limit or lint chamber hi-heat protector thermostat. (Refer to
appropriate Installation Manual for more detail.)
CAUTION: IMPROPERLY SIZED OR INSTALLED EXHAUST DUCT WORK CAN
CREATE A POTENTIAL FIRE HAZARD.
SECTION III
Installation Requirements
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