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ADC AD-75D II Installation Manual

(gas/electric/steam)
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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.
Do not store or use gasoline or other flammable
vapor and liquids in the vicinity of this or any
other appliance.
WHAT DO YOU 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.
122299MS/tcosta
AD-75D II
(Gas/Electric/Steam)
Installation Manual
For replacement parts, contact the reseller from which the dryer
AVERTISSEMENT: Assurez-vous de bien
suivre les instructions données dans cette
notice pour réduire au minimum le risque
d'incendie ou d'explosion ou pour éviter tout
dommage matériel, toute blessure ou la mort.
Ne pas entreposer ni utiliser d'essence ni
d'autres vapeurs ou liquides inflammables dans
le voisinage de cet appareil ou de tout autre
appareil.
QUE FAIRE SI VOUS SENTEZ UNE ODEUR
DE GAZ:
* Ne pas tenter d'allumer d'appareil.
* Ne touchez à aucun interrupteur. Ne pas
vous servir des téléphones se trouvant dans
le bâtiment où vous vous trouvez.
* 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.
was purchased or
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. 113121

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Summary of Contents for ADC AD-75D II

  • Page 1 For replacement parts, contact the reseller from which the dryer was purchased or 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 122299MS/tcosta ADC Part No. 113121...
  • Page 2 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.
  • Page 3 IMPORTANT YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPLY AND THE GAS SUPPLY OR THE STEAM SUPPLY BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUSTING, INSTALLATION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) STANDARDS.
  • Page 4 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. WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer.

  • Page 5: Table Of Contents

    Table of Contents SECTION I IMPORTANT INFORMATION ................3 A. Receiving and Handling ....................... 3 B. Safety Precautions ........................4 SECTION II SPECIFICATIONS/COMPONENT IDENTIFICATION ........6 A. Specifications ..........................6 B. Component Identification ......................8 SECTION III INSTALLATION PROCEDURES ................. 10 A.
  • Page 6 SECTION VI ROUTINE MAINTENANCE .................. 44 A. Cleaning ........................... 44 B. Adjustments ..........................45 C. Lubrication ..........................46 SECTION VII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ......................47 SECTION VIII REVERSING TIMER SPIN/DWELL ADJUSTMENTS........50 SECTION IX DATA LABEL INFORMATION ................51 A.

  • Page 7: Important Information

    5. Freight claims are the responsibility of the consignee, and ALL claims must be filed at the receiving end. ADC assumes no responsibility for freight claims or damages. 6. If you need assistance in handling the situation, please contact the ADC Traffic Manager at (508) 678-9000.

  • Page 8: Safety Precautions

    4. Installation and service must be performed by a qualified installer, service agency, or gas supplier. 5. Dryer(s) must be exhausted to the outdoors. 6. 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.
  • Page 9 7. 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. WARNING: The collection of lint in the burner area and exhaust ductwork can create a potential fire hazard.

  • Page 10: Specifications/Component Identification

    ** A minimum of 3/4” pipe must be supplied to the gas inlet for each dryer. IMPORTANT: Steam dryers must be provided with clean, dry, regulated 80 PSI +/- 10 PSI (5.51 bars +/- 0.68 bars) air supply. NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.

  • Page 11: Specifications

    Specifications ADG-75D (Gas) ADE-75 (Electric) ADS-75 (Steam) NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.

  • Page 12: Component Identification

    B. COMPONENT IDENTIFICATION 1. Dryer Front View Illus. No. Description Controls Control (top access) Door Assembly Main Door Assembly Lint Compartment Area (lint screen located behind door) Data Label and Installation Label (located on the left side panel area behind the top control [access] door)
  • Page 13 2. Dryer Rear View Illus. No. Description Heating Unit 1/8-inch Compressed Air Supply Inlet (behind electric service relay box for steam units only) Electric Service Relay Box Basket (Tumbler) Bearing Mount Assembly Idler Bearing Mount Assembly Blower Motor Assembly Leveling Leg (rear) Basket (Tumbler) (Drive) Motor Assembly (reversing models only) Dryer Exhaust Electric service connections for gas and steam models are made in this box.

  • Page 14: Installation Procedures

    SECTION III 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-B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing) or Canadian Electrical Codes Parts 1 &...

  • Page 15: Unpacking/Setting Up

    B. 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.

  • Page 16: Dryer Enclosure Requirements

    C. 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.

  • Page 17: Fresh Air Supply Requirements

    D. 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.

  • Page 18: Exhaust Requirements

    E. EXHAUST REQUIREMENTS 1. 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.
  • Page 19 IMPORTANT: Minimum ductwork diameter for horizontal venting is 10-inches (25.4 cm) and for vertical venting the minimum is 12-inches (30.48 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.
  • Page 20 IMPORTANT: Minimum duct size for a dryer that is vented vertically is 12-inches (30.48 cm) for a round duct or an equivalent of 120 square inches (774 square centimeters). THE DUCT SIZE MUST NOT BE REDUCED ANYWHERE DOWNSTREAM OF THE DRYER. IMPORTANT: For extended ductwork runs, the cross section area of the ductwork can only be increased to an extent.
  • Page 21 3. Multiple Dryer (Common) Venting If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be channeled into a “common main duct.” The individual ducts should enter the bottom or side of the main duct at an angle not more than 45º...

  • Page 23: Electrical Information

    F. ELECTRICAL INFORMATION 1. Electrical Requirements It is your responsibility to have ALL electrical connections made by a properly licensed and competent electrician to assure that the electrical installation is adequate and conforms to local and state regulations or codes. In the absence of such codes, ALL electrical connections, materials, and workmanship must conform to the applicable requirements of the National Electrical Code ANSI/NFPA NO.
  • Page 24 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. NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.
  • Page 25 VOID THE WARRANTY. NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation. IMPORTANT: 3-phase (3ø) figures shown are for a 3 wire service only.
  • Page 26 3. 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 &...
  • Page 27 Single-Phase (1Ø) Electrical Connections Leads Black White Green Positive Neutral Ground If local codes permit, power to a gas or steam 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.
  • Page 28 If local codes permit, power to a gas or steam 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 ALL cases, a strain relief must be installed where the wiring enters the dryer.
  • Page 29 3) 3-Phase (3Ø) Wiring Connections/Hookup “Reversing Models Only” 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. Electrical connections for electrically heated dryers are made in the electric oven area located at the upper rear area of the dryer.
  • Page 30 a) 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.

  • Page 31: Gas Information

    The dryer must be connected to the type of heat/gas indicated on the dryer data label affixed to the left side panel area behind the top control (access) door. 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.
  • Page 32 2. Technical Gas Data a. Gas Specifications TYPE OF GAS NATURAL LIQUID PROPANE Manifold Pressure* 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb In-Line Pressure 6.0 - 12.0 inches W.C. 14.92 - 29.9 mb 11.0 inches W.C. 27.4 mb Shaded areas are stated in metric equivalents * Measured at outlet side of gas valve pressure tap when gas valve is on.
  • Page 33 3. 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/CGA-B149.2-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.
  • Page 34 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 (W.C.) pressure.

  • Page 35: Steam Information

    H. STEAM INFORMATION It is your responsibility to have ALL plumbing connections made by a qualified professional to assure 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.
  • Page 36 a. The pressure of the condensate in the steam supply 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.
  • Page 37 4. Steam Damper Air System Connections The ADS-75D 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.
  • Page 38 5. Steam Damper System Operation The ADS-75D steam damper shown in Diagram 1 in the illustration below, 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).
  • Page 39 6. Steam Damper Air Piston (Flow Control) Operation Adjustment Although the steam damper operation was tested and adjusted prior to shipping at 80 PSI (5.51 bars), steam damper operation must be checked before the dryer is put into operation. Refer to page 34 for instructions to check steam damper system operation.

  • Page 40: Preparation For Operation/Start-Up

    I. PREPARATION FOR OPERATION/START-UP The following items should be checked before attempting to operate the dryer: 1. Read ALL “CAUTION,” “WARNING,” and “DIRECTION” labels attached to the dryer. 2. Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label affixed to the left side panel area behind the top control (access) door.

  • Page 41: Preoperational Tests

    J. 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. 1.
  • Page 42 Electrically Heated Dryers Check to insure that electric oven/contactor assembly is activating. 3. Make a complete operational check of ALL safety related circuits: a. Door Switch(es) b. Hi-Limit Thermostats c. Sail Switch (for gas and electric models only) 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.

  • Page 43: Preoperational Instructions

    7. Reversing Models Only Basket (tumbler) dryer should never be operated with less than a 30 lb (14 kg) load (dry weight). The size of the load will affect the coast-down and dwell (stop) times. The basket (tumbler) must come to a complete stop before starting in opposite direction.

  • Page 44: Shut Down Instructions

    L. SHUT DOWN INSTRUCTIONS If the dryer is to be shut down (taken out of service) for a period of time, the following must be performed: 1. Discontinue power to the dryer either at the external disconnect switch or the circuit breaker. 2.

  • Page 45: Service/Parts Information

    1. 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.

  • Page 46: Warranty Information

    A. RETURNING WARRANTY CARDS 1. 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.
  • Page 47 IMPORTANT: No replacements, credits, or refunds will be issued for merchandise damaged in transit. 5. 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.

  • Page 48: Routine Maintenance

    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.

  • Page 49: Adjustments

    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 1. Remove lint from around basket (tumbler), drive motors, and surrounding areas. 2.

  • Page 50: Lubrication

    DO NOT have a grease fitting. Provisions are made in the bearing housing for the addition of a grease fitting which can be obtained elsewhere, or from ADC by ordering kit Part No. 882159 (includes two [2] fittings).

  • Page 51: Procedure For Functional Check Of Replacement Components

    SECTION VII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 1. Microprocessor Controller (Computer) Board a. Upon completing installation of the replacement microprocessor controller (computer) board, reestablish power to the dryer. b. Start the drying cycle by pressing any of the preset cycles in letters A-F. c.
  • Page 52 d. Verify that the motor(s), heat, and door indicator lights, on the back side of the microprocessor controller (computer) board are lit. (Refer to the illustration below.) e. Open main door. The dryer must stop and ALL output indicator lights on the back side of the microprocessor controller (computer) board must go out.
  • Page 53 2. For Models With Johnson Controls Direct Spark Ignition (DSI) Module (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.

  • Page 54: Reversing Timer Spin/Dwell Adjustments

    SECTION VIII REVERSING TIMER SPIN/DWELL ADJUSTMENTS Dual timer models with “reversing option” have an electric reversing timer in the electric service box, which is located in the upper rear area of the dryer. Both the dwell (stop) time and basket (tumbler) spin time are adjustable by mode selection switches located on the electronic timer (as noted in the illustration below).

  • Page 55: Data Label Information

    When contacting American Dryer Corporation certain information is required to insure proper service/parts information from ADC. This information is on the data label located on the left side panel area behind the top control (access) door. When contacting ADC please have the model number and serial number available.
  • Page 56 THE DATA LABEL 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.

  • Page 57: Troubleshooting

    SECTION X TROUBLESHOOTING 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.
  • Page 58 2. Microprocessor controller (computer) motor indicator dot and relay output light emitting diode (L.E.D.) indicator dots are on, but motor output L.E.D. indicator is off... a. Failed microprocessor controller (computer). C. Drive motor (for reversing models only) operates in one (1) direction only...stops and restarts in the same direction...
  • Page 59 b. Low voltage to motor. c. Failed motor. d. Failed blower (impellor/fan) is out of balance. G. Both drive motor and blower (impellor/fan) motor (for reversing models only) are not operating (does not start), microprocessor controller (computer) motor indicator dots and relay output light emitting diode (L.E.D.) indicators are on...
  • Page 60 a. Main door is not closed ALL the way. b. Main door switch is out of proper adjustment. c. Failed lint main door switch. d. Broken wire/connection in main door wiring circuit. 2. Failed 24 VAC step down transformer. L. Microprocessor controller (computer) light emitting diode (L.E.D.) display reads “door” and the microprocessor controller (computer) “DOOR”...
  • Page 61 R. Microprocessor controller (computer) light emitting diode (L.E.D.) display reads “SEFL”... 1. Rotational sensor circuit failure, fault somewhere in the basket (tumbler) rotation or circuit... a. Basket (tumbler) is not rotating... 1) Broken or loose V-belts. 2) Failure in drive motor circuit. (Refer to Section B, Section C, and Section D on page 53 and page 54.) b.
  • Page 62 b. Sail switch damper is not closing or is fluttering... 1) Lint screen is dirty. 2) Restriction in the exhaust ductwork. 3) No exhaust airflow... a) Failed impellor (fan/blower). b) Fault in blower (impellor/fan) motor circuit (for reversing models only). 2.
  • Page 63 b) Restriction in exhaust ductwork. c. Ignitor does not spark and module locks out (“RED” indicator stays on). 1) Fault in high voltage (HV) wire, break or loose connection. 2) Failed ignitor probe assembly. 3) Failed Direct Spark Ignition (DSI) module. ELECTRIC MODELS...
  • Page 64 4. Impellor (fan/blower) is rotating in the wrong direction (for 3-phase [3ø] models only). 5. Lint screen is dirty or is not being cleaned often enough. 6. Inadequate airflow... a. Impellor (fan/blower) failure. GAS MODELS... 1. Low and/or inconsistent gas pressure. Natural gas pressure ......
  • Page 65 STEAM MODELS 1. Low steam supply... a. Steam trap is too small. b. Supply line is too small. 2. Low steam pressure. 3. Insufficient make-up air. 4. Lint screen is dirty or is not being cleaned often enough. 5. Restriction in the exhaust ductwork. 6.
  • Page 66 a. Not enough make-up air. b. Restriction in the exhaust ductwork. c. Gas pressure is too high. d. Impellor (fan/blower) is rotating in the wrong direction (for 3-phase [3ø] models only). e. Burner orifice size (drill material size [D.M.S.]) too large for application (i.e., high elevation). AA.

  • Page 67: Dual Timer Models

    9. Failed motor bearing. DUAL TIMER MODELS A. Dryer will not start, both drive motor and blower (impellor/fan) motor are not operating (DO NOT start) and indicator light is off... 1. Service panel fuse blown or tripped breaker. 2. Dryer control circuit L1 or L2 1/2-amp (slo blo) fuse is blown. 3.
  • Page 68 b. Low voltage to motor. c. Failed motor. d. Basket (tumbler) is binding, check for an obstruction. e. Failed idler bearings or basket (tumbler) bearings. E. Fan/blower motor is not operating (does not start)... 1. Failed blower (impellor/fan) motor contactor (relay). 2.
  • Page 69 b) Fault in blower (impellor/fan) motor circuit (for reversing models only). 2. Tripped manual reset burner hi-limit. 3. Tripped manual reset basket (tumbler) hi-limit. ELECTRIC MODELS... 1. Fault in sail switch circuit... a. Sail switch is out of adjustment or has failed. b.
  • Page 70 1) Ignitor probe assembly is out of adjustment or has failed. 2) Severe air turbulence. 3) Failed Direct Spark Ignition (DSI) module. 4) Failed gas valve. b. Ignitor sparks, burner lights but goes off right away... 1) DSI ignitor flame probe is out of adjustment, or has failed. 2) Sail switch is fluttering...
  • Page 71 Dryer operates but is taking too long to dry... 1. Exhaust ductwork run is too long or is undersized, back pressure must be no less than 0 and cannot exceed 0.3 inches (0.74 mb) water column (W.C.). 2. Restriction in exhaust ductwork... a.
  • Page 72 4. Impellor (fan/blower) is rotating in the wrong direction only (for 3-phase [3ø] models only). 5. Failed electric element(s). 6. Sail switch is fluttering... a. Restriction in the exhaust ductwork. b. Sail switch is not adjusted properly. STEAM MODELS 1. Low steam pressure. 2.
  • Page 73 d. Impellor (fan/blower) is rotating in the wrong direction (for 3-phase [3ø] models only). e. Burner orifice size (drill material size [D.M.S]) too large for application (i.e., high elevation). L. Condensation on main door glass... 1. Too long, undersized, or improperly installed ductwork. 2.

  • Page 74: Burner And Basket (Tumbler)/Lint Chamber Manual Reset Hi-Limit Instructions

    The location of the manual reset hi-limit switch is on the right side of the burner box. IMPORTANT This dryer is equipped with a burner hi-limit and tumbler/lint chamber hi-limit thermostat which must be reset manually. warning: Discontinue power to dryer before attempting to reset hi-limit. ADC P/N:114093...

  • Page 75: Electric Or Steam Models

    The location of the manual reset hi-limit is in the lint chamber area. WARNING: Discontinue power to dryer before attempting to reset hi-limit. IMPORTANT This dryer is equipped with a lint chamber hi-limit thermostat which must be reset manually WARNING: Discontinue power to dryer before attempting to reset hi-limit. ADC P/N:114501...
  • Page 76 ADC 113121 1 - 12/30/99-25 2 - 12/30/99-100 3 - 01/17/00-25 4 - 01/18/00-250 5 - 03/03/00-250 6 - 05/26/00-500 7 - 10/19/00-500 8 * 09/25/01-500...

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