American Dryer Corp AD-464 User Manual

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AD-464 /ML-460

Phase 7

Service Manual

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

031504SCOSTA/gbennett

ADC Part No. 450260

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, andtrouble-freeoperation.

Only qualified technicians should service this equipment.

Observe all safety precautions displayed on the equipment or specified in the installation manual included with the dryer.

The following “FOR YOUR SAFETY” caution must be posted near the dryer in a prominent location.

FOR YOUR SAFETY

Do not store or use gasoline or other flammable vapors or liquids in the vicinity of this or any other appliance.

POUR VOTRE SÉCURITÉ

Ne pas entreposer ni utiliser d’essence ni d’autres vapeurs ou liquides inflammables dans le voisinage de cet appareil ou de yout 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.

 

 

Important

 

 

 

 

 

For your convenience, log the following information:

DATEOFPURCHASE

__________________________ MODEL NO. _______________________________________

RESELLER’SNAME

_______________________________________________________________________________

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 toADC at (508)678-9447or telephone your order directly to theADC 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.

The illustrations on the following pages may not depict your particular dryer exactly. The illustrations are a composite from the various dryer models. Be sure to check descriptions of the parts thoroughly before ordering.

“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 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.

Please observe all safety precautions displayed on the equipment and specified in the installation manual included with the dryer.

For Your Safety

Do not store or use gasoline or other flammable vapor and liquids in the vicinity of this or any other appliance.

Do not dry mop heads in the dryer.do not use dryer in the presence of dry cleaning fumes.

Caution

Dryers should never be left unattended while in operation.

Warning

Children should not be allowed to play on or near the dryers.

Children should be supervised if near dryer(s) in operation.

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 or screen in place, even if an external lint collection system is used.

The wiring diagram for the dryer is located in the front electrical control box area.

Table of Contents

 

Reference Guide (Front) ...............................

2

Reference Guide (Left Side) ..........................

3

Reference Guide (Right Side) ........................

4

Reference Guide (Right Side) ........................

5

Safety Precautions........................................

6

Routine Maintenance ....................................

7

Cleaning ..................................................................

7

Lubrication ..............................................................

7

Adjustments ...........................................................

8

Installation Requirements ............................

8

Enclosure/Air Supply/Exhaust Requirements ..........

8

Electrical And Gas Requirements ............................

8

Operational Service Check Procedure .....................

9

Component Description/Replacement ..........

9

Gas Burner and Ignition System .............................

9

Pilot Gas Supply Line ............................................

11

Main Gas Supply Line ............................................

11

Natural Gas and Liquid Propane (L.P.) Gas

 

Conversion Instructions .........................................

15

Steam Heat System ..............................................

15

Tilting System Description ....................................

17

Air Jet System ......................................................

20

Blower (Squirrel Cage Fan) Motor Assembly .........

21

Blower (Squirrel Cage Fan)

 

Electrical Components ..........................................

23

Filter/Regulator Assembly .....................................

24

Compressed Air System .......................................

25

Door Systems .......................................................

26

Control and Electrical System ...............................

29

Basket (Tumbler) System .....................................

35

Safety Devices ......................................................

39

Top of Tumbler (Basket) ........................................

40

Phase 7 Non-Coin System Diagnostics .......

41

Diagnostic L.E.D. Display Fault Messages ...........

41

Input/Output (I/O) Board L.E.D. Indicators .............

41

Troubleshooting and Replacement .............

44

Procedure for Functional Check of

 

Replacement Components .........................

47

Sensor Activated Fire Extinguishing

 

(S.A.F.E.) System ..........................................

47

Reference Guide

(Front)

2

American Dryer Corp.

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Reference Guide

(Left Side)

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3

Reference Guide

(Right Side)

4

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Reference Guide

(Right Side)

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SAFETYPRECAUTIONS__________

Warning

For your safety, the information in this manual must

!be followed to minimize the risk of fire or explosion or to prevent property damage, personal injury, or

loss of life.

The dryer must never be operated with any of the back guards, outer tops, or service panels removed. Personal injury or fire could result.

Caution

The dryer should never be left unattended while in

!operation.

Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance.

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.

What To Do If You Smell Gas ________

Do not try to light any appliance.

Do not touch any electrical switch.

Do not use any phone in your building.

Clear the room, building, or area of all occupants.

Immediately call your gas supplier from a neighbor’s phone. Follow the gas supplier’s instructions.

If you cannot reach your gas supplier, call the fire department.

Installation and service must be performed by a qualified installer, service agency, or gas supplier.

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 rubberlike materials. Drying in a heated basket (tumbler) may damage plastics or rubber and also may be a fire hazard.

A program should be established for the inspection and cleaning of lint in the burner area, exhaust ductwork, and area around the back of the dryer. The frequency of inspection and cleaning can best be determined from experience at each location.

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-LATESTEDITION or in Canada, the Canadian Electrical Codes Parts 1 & 2 CSAC22.1-1990or LATEST EDITION.

Note

Failure to electrically ground the dryer properly will

!void the warranty.

Under no circumstances should the dryer door switches, lint drawer switch, or heat safety circuit, ever be disabled.

Warning

Personal injury or fire could result should the dryer

!door switches, lint drawer switch, or heat safety circuit, ever be disabled.

This dryer is not to be used in the presence of dry cleaning solvents or fumes.

Remove articles from the dryer as soon as the drying cycle has been completed.

Warning

Articles left in the dryer after the drying and cooling

!cycles have been completed can create a fire hazard.

Read and follow all caution and direction labels attached to the dryer.

Warning

YOU MUST DISCONNECT AND LOCKOUT THE ! ELECTRIC SUPPLY AND THE GAS SUPPLY OR THE STEAM SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational

Safety and Health Administration) STANDARDS.

Important

Label all wires prior to disconnection when servicing ! the microprocessor controller (computer) and the ignition module. Wiring errors can cause improper

and dangerous operation.

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ROUTINEMAINTENANCE_________

Cleaning ______________________________

A 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

Remove power from the dryer before performing any

!maintenance on the dryer.

Suggested time intervals shown are for average usage which is considered six (6) to eight (8) operational (running) hours per day.

Suggested Cleaning Schedule

Every Third or Fourth Load

Clean the lint screen. A clogged lint screen will cause poor dryer performance. The lint screen is located in the lint drawer in the base of the dryer. Pull out the lint drawer, brush the lint off the lint screen, and remove the lint. Inspect the lint screen and replace if torn.

Clean the lint screen from the power burner booster fan located on the right side panel.

Note

!The frequency of cleaning the lint screens can best be determined from experience at each location.

Weekly

Remove the panels on each side of the basket (tumbler) section and remove any lint accumulation from the basket (tumbler) drive motor, drive shafts, gear reducer, drive belts, drive wheels, and drive shaft bearings.

Warning

To avoid the hazard of electrical shock, discontinue

!electrical supply to the dryer.

Monthly

Empty the compressed air filter bowl.

Note

Regulator pressure is to

!be set at 80 psi (5.51 bar).

Clean any lint accumulation from the gas valve and burner area at the top of the dryer, the fan (impellor) motor, and the fan (impellor) bearings located in the dryer base.

Every 6 Months

Steam Models - Clean the steam coil fins. We suggest using compressed air and a vacuum cleaner with brush attachment.

Note

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 any local air

conditioning supply house.

Inspect and remove any lint accumulation in customer furnished exhaust ductwork system and from the 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.

When cleaning the dryer cabinet(s), avoid using harsh abrasives. A product intended for the cleaning of appliances is recommended.

Clean off any lint accumulation on top of the temperature probe and the hi-limitswitch located above the lint basket.

Lubrication ___________________________

Monthly

The two (2) bearings that support the impellor/fan shaft must be lubricated. Use Shell Alvania #2 grease or its equivalent. Generically, this grease would be described as a NLGI Grade 2 multipurpose industrial grease with a lithium thickener and mineral base oil.

Every 3 Months

The four (4) bearings that support the drive and idler shafts must be lubricated. Use Shell Alvania #2 grease or its equivalent. Generically, this grease would be described as a NLGI Grade 2 multipurpose industrial grease with a lithium thickener and mineral base oil.

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Every 6 Months

Change gear oil in basket (tumbler) shaft gear reducer.

Remove the drain plug (located at the bottom rear of the reducer).

After oil is completely drained, replace the drain plug.

Remove the vent plug and pour in 1.48 quarts (1.4 liters)

of Mobil Oil DTE HH5G (I.S.O. viscosity grade 460), SAE 90, or its equivalent.

Adjustments _________________________

7 Days After Installation and Every 6 Months Thereafter

Inspect bolts, nuts, screws, setscrews, nonpermanent gas connections (unions, shutoff valves, orifices), and grounding connections. Fan (impellor) V-belts,along with the motor and drive belts should be examined and replaced if necessary. Tighten looseV-beltswhen necessary. Complete operational check of controls and valves. Complete operational check of all safety devices (door switches, lint drawer switch, sail switch, burner, andhi-limitthermostats).

INSTALLATIONREQUIREMENTS____

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-LATESTEDITION (National Fuel Gas Code) or ANSI/NFPA NO.70-LATESTEDITION (National Electrical Code) or in Canada, the installation must conform to applicable Canadian Standards:CAN/CGA-B149.1-M91(Natural Gas) orCAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing) or Canadian Electrical Codes Parts 1 & 2 CSAC22.1-1990or LATEST EDITION (for Electrical Connections).

Enclosure/Air Supply/Exhaust Requirements ________________________

Note

The following information is very brief and general.

!For a detailed description, refer to the installation manual included with the dryer.

Bulkheads and partitions around the dryer should be made of noncombustible materials. Allowances should be made for the opening and closing of the control door and lint door. Also, allowances should be made in the rear for ease of maintenance. (Refer to the 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-upair 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 ensure proper performance of each dryer.

Important

Make-upair must be provided from a source free of! dry cleaning fumes.Make-upair that is contaminated by dry cleaning fumes will result in irreparable damage to the motors and other dryer

components.

Exhaust ductwork should be designed and installed by a competent technician. Improperly sized ductwork 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 chamberhi-heatprotector thermostat. (Refer to the installation manual for more details.)

Caution

Improperly sized or installed exhaust ductwork can

!create a potential fire hazard.

Electrical and Gas Requirements ___

It is your responsibility to have all electrical connections made by a properly licensed and competent electrician 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-LATESTEDITION, or in Canada, the Canadian Electrical Codes Parts 1 & 2 CSAC22.1-1990or LATEST EDITION.

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