American Dryer Corp. AD-758DV manuale d’uso

AD-758DV (Gas DSI/Electric/Steam) Installation Manual For replacement parts, contact the reseller from which the dryer was purchased or American Dryer Corporation 88 Currant Road Fall River, MA 02720-4781 T elephone: (508) 678-9000 / Fax: (508) 678-9447 e-mail: techsupport@amdry .com w ww .amdry .com W ARNING: For your safety the information in thi[...]

Retain This Manual In A Safe Place For Futur e Refer ence 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. OBSER VE ALL SAFETY P[...]

IMPOR T ANT YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y OR THE STEAM SUPPL Y BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING , ADJUSTING , INST ALLA TION, OR TESTING O F ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) ST ANDARDS. W ARNING CHILDREN SHOULD NOT B[...]

W ARNING The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY OR FIRE COULD RESUL T . IMPOR T ANT PLEASE OBSER VE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer . W ARNING DR YER MUST NEVER BE OPERA TED WITHOUT THE [...]

Table of Contents SECTION I IMPOR T ANT INFORMA TION ............................................................................... 3 A. Receiving and Handling ............................................................................................................... 3 B. Safety Precautions .....................................................[...]

SECTION VI ROUTINE MAINTENANCE .................................................................................. 4 2 A. Cleaning .................................................................................................................................... 42 B. Adjustments .....................................................................[...]

3 SECTION I IMPOR T ANT INFORMA TION A. RECEIVING AND HANDLING The dryer is shipped in a protective stretch wrap cover with protective cardboard corners and top cover (or optional box) as a means of preventing damage in transit. Upon delivery , the dryer and/or packaging, and wooden skid should be visually inspected for shipping damage. If any dama[...]

4 B. SAFETY PRECAUTIONS W ARNING: 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. W ARNING: The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY OR FIRE COULD R[...]

5 7. 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. W ARNING: The collection of lint in the burner area and exhaust ductwork can create a potential f[...]

6 NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation. SECTION II SPECIFICA TIONS/COMPONENT IDENTIFICA TION A. SPECIFICA TIONS STEAM GAS ELECTRIC * AD-758DV 50 Hz 1-phase (1ø) non-reversing dryers use a 3/4 HP (0.56 kw) motor . ALL AD-758DV reversing dryers are supplied with two (2) 3-phase (3ø)[...]

7 Specifications AD-758DV (Gas/Electric/Steam) NOTE: ADC reserves the right to make changes in specifications at any time without notice or obligation.[...]

8 B. COMPONENT IDENTIFICA TION 1. Dryer Front V iew Illus. No. Description 1 Controls 2 Control (top access) Door Assembly 3 Main Door Assembly 4 Lint Compartment Area (lint screen located behind lint door or left sidewall) 5 Data Label and Installation Label (affixed to the upper left side panel area behind the top control [access] door)[...]

9 2. Dryer Rear V iew Illus. No. Description 1 Heating Unit 2 Electric Service Relay Box 3 Basket (tumbler) Bearing Mount Assembly 4 Idler Bearing Mount Assembly 5 Blower Motor Assembly (for reversing models only) 6 Leveling Legs (rear) 7 Basket (drive) Motor Assembly 8 Dryer Exhaust[...]

10 SECTION III INST ALLA TION 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- LA TEST EDITION (National Fuel Gas Code) or ANSI/NF P A NO. 70-LA TEST EDITION (National Ele[...]

11 CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors. Every six (6) months, inspect the exhaust ducting and remove any lint build up. B. UNP ACKING/SETTING UP Remove protective shipping material (i.e., plastic wrap and/or optional shipping box) from dryer . IMPOR T ANT : Dryer must be transported and handled in an [...]

12 C . D R YER 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  s outer top, except along the front of the dryer which may be partially cl[...]

13 D . F R E S H AIR SUPPL Y 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 aff[...]

14 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, b[...]

15 IMPOR T ANT : Exhaust back pressure measured by a manometer in the exhaust duct must be no less than 0 and must not exceed 0.3 inches (0.75 mb) of water column (W .C.). 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 ar[...]

16 IMPOR T ANT : 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, venting, and air conditioning (HV AC) firm should be consulted for proper venting information. ALL ductwork should be smooth inside with[...]

17 3. Multiple (Common) Dryer V enting IMPOR T ANT : 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, venting, and air conditioning (HV AC) firm should be consulted for proper venting information. ALL d[...]

18 IMPOR T ANT VENTING REMINDERS 1. Ductwork size and installation should be done by a qualified professional. 2. The dryer must be exhausted to the outdoors. 3. Ductwork should be routed as short as possible to the outdoors with as few elbows as possible. 4. A void 90° turns, use 30° or 45° turns instead. 5. For single dryer venting, the size o[...]

19 F . ELECTRICAL INFORMA TION 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,[...]

20 2) Electric Models ONL Y ALL electrically heated dryers must be connected to the electric service shown on the dryer  s data label, which is affixed to the upper left side panel area behind the top control (access) door . The connecting wires must be properly sized to handle the rated current. NOTE: Electrically heated service (amperage) spec[...]

21 If local codes permit, power to the dryer can be made by the use of a flexible U.L. listed power cord or 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 . S I N G LE- P H AS E ( 1 Ø ) E L [...]

22 5. 3-Phase (3ø) W iring Connections/Hookup (For Non-Reversing 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 is done internally to the dryer . No single-phase (1ø) input connection is required on a[...]

23 6. 3-Phase (3ø) W iring Connections/Hookup (for Reversing Models Only) The electrical connections on ALL 3-phase (3ø) gas dryers 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 are[...]

24 CAUTION: The dryer must be grounded. A ground lug has been provided for this purpose. IMPOR T ANT : A CIRCUIT SERVICING EACH DR YER MUST BE PROVIDED. The only electrical connections to the dryer are the 3-phase (3ø) leads (L1, L2, L3, and sometimes neutral) and ground. NOTE: Electrically heated service (amperage) specifications/requirements are[...]

25 IMPOR T ANT : Figures shown are for non-reversing models ONL Y . For reversing models, contact the factory . IMPOR T ANT : The dryer must be connected to the electric supply shown on the data label that is affixed to the upper left side panel area behind the top control (access) door . In the case of 208 V AC or 240 V AC, the supply voltage must[...]

26 G . GAS INFORMA TION It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms to local and state regulations or codes. In the absence of such codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requireme[...]

27 2. T echnical Gas Data a . Gas Specifications b. Gas Connections Inlet connection ------------------- 3/4  N. P .T . Inlet supply size ------------------- 3/4 N.P .T . (minimum) Btu/hr input (per dryer) ---------- 175,000 (44,100 kcal/hr) 1) Natural Gas Regulation is controlled by the dryer  s gas valve s internal regulator . Incomin[...]

28 3. Piping/Connections ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LA TEST EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P .] Gas) or LA TEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and must be done [...]

29 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.) pre[...]

30 H. STEAM INFORMA TION 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. Care must be exercised when leveling steam dryers into final position. After leveling the dryer, check the downward pi[...]

31 IMPOR T ANT : Steam coil failure due to water hammer by wet steam will VOID THE W ARRANTY . 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 preven[...]

32 4. S team Damper Air System Connections The ADS-758DV 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. a . Air Requi[...]

33 c . Air Regulation No air regulator or filtration is provided with the dryer . External regulation/filtration of 80 PSI (5.51 bars) 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 insure that correct and clean air pressure is ac[...]

34 6. S team Damper Air Piston (Flow Control) Operation Adjustment Damper operation was tested and adjusted prior to shipping at 80 PSI (5.51 bars). If damper air adjustment is necessary , locate the flow control valve and make the necessary adjustments as noted below .[...]

35 I. PREP ARA TION FOR OPERA TION/ST AR T -UP The following items should be checked before attempting to operate the dryer: 1. Read ALL  CAUTION ,  W ARNING , 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 upper lef[...]

36 J. PREOPERA TIONAL 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. T urn on electric power to the dryer . 2. Ref[...]

37 NOTE: T o 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[...]

38 K. P REOPERA TIONAL INSTRUCTIONS OPL MODELS 1. T o start the dryer: a . Microprocessor controller (computer) dryers 1) The light emitting diode (L.E.D.) display will read FILL. 2) Press the E on the keyboard (touch pad). 3) The L.E.D. display will quickly show Ld30, LC04, F180. The dryer will start, and the L.E.D. d[...]

39 SECTION IV SER VICE/P AR TS INFORMA TION A. SER VICE 1. 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 b e contacted or is unknown, contact the ADC Service Department for a reseller in yo[...]

40 SECTION V WARRANTY INFORMA TION A. RETURNING W ARRANTY 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[...]

41 2. Each part must be tagged with the following information: a. Model number and serial number of the dryer from which part was removed. b. Nature of failure (be specific). c . Date of dryer installation. d. Date of part failure. e . Specify whether the part(s) being returned is for a replacement, a credit, or a refund. NOTE: If a part is marked [...]

42 SECTION VI ROUTINE MAINTENANCE 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 ductwork system. The frequency of cleaning can best be determined from experience at each location. Maximum operating efficiency is dependent [...]

43 W ARNING: 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 houses. 90 DA YS Inspect and remove lint accumulation in customer furnished exhaust ductwork system and from dryer  s internal exhaust ducting. W ARNING: THE ACCUMULA[...]

44 D. LINT DR A WER REMOV AL T o remove the lint drawer from the dryer pull drawer out approximately halfway . Rotate/move lint drawer stop hinge (refer to the illustration below ) downward and pull drawer out. IMPOR T ANT : After replacing the lint drawer back into the dryer , be sure to rotate/move hinge back to the upward stop position.[...]

45 SECTION VII TROUBLESHOOTING IMPOR T ANT : YOU MUST DISCONTINUE AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y OR THE STEAM SUPPL Y BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE DR YER TO ALLOW ACCESS FOR CLEANING , ADJUSTING , INST ALLA TION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) ST ANDARDS[...]

46 3. Failed drive motor . 4. Failed microprocessor controller (computer). C. Drive motor ( r eversing) operates in one (1) dir ection ONL Y, stops and r estarts in same direction... 1. Failed drive motor contactor (relay). 2. Failed arc suppressor (A.S.) board (for Reversing Models Only). 3. Failed microprocessor controller (computer). D . Drive m[...]

47 1. Fault in main door switch circuit. 2. Blown fuse (2-amp very fast acting fuse [if applicable]). 3. Failed arc suppressor (A.S.) board (for Reversing Models Only). 4. Failed microprocessor controller (computer). 5. Failed 24 V AC transformer . H. Both drive motor and blower motor run a few minutes and then stop...microprocessor controller (com[...]

48 L . Micr oprocessor controller (computer) will ONL Y accept certain keyboard (touch pad) entries... 1. Failed keyboard (touch pad) label assembly . 2. Failed microprocessor controller (computer). M . Microprocessor controller (computer) locks up and light emitting diode (L.E.D.) display reads erroneous message(s) or ONL Y partial segments... 1. [...]

49 b. Sail switch damper is not closing or is fluttering... 1) Lint screen is dirty . 2) Restriction in exhaust ductwork. 2. Fault in burner hi-limit circuit or tripped manual reset hi-limit. 3. Fault in lint chamber sensor bracket or tripped manual reset hi-heat protector thermostat. 4. Failed Direct Spark Ignition (DSI) module. 5. Failed DSI igni[...]

50 Q . Dryer operates but is taking too long to dry ... 1. Exhaust ductwork run too long or is undersized...back pressure must be no less than 0 and must not exceed 0.3 inches (0.75 mb) of water column (W .C.). 2. Restriction in exhaust ductwork... a . Exhaust back draft damper is sticking partially closed. b. Restriction in ductwork...check ductwo[...]

51 3. Loose basket (tumbler) tie rod. 4. Failed basket (tumbler) support. T . Excessive noise and/or vibration... 1. Dryer is not leveled properly . 2. Impellor (fan/blower) is out of balance... a . Excessive lint build up on impellor (fan/blower). b. Failed impellor (fan/blower). 3. Loose basket (tumbler) tie rod. 4. Basket (tumbler) is out of adj[...]

52 6. Failed dual timer relay . B . Drive motor (O NL Y) is not operating... 1. Failed drive motor contactor . 2. Failed reversing timer (for Reversing Models Only). 3. Failed drive motor . C . Blower motor ( ONL Y) is not operating... 1. Failed impellor (fan/blower) motor contactor (relay). 2. Failed blower (impellor/fan) motor . D . Both drive mo[...]

53 ELECTRIC MODELS ONL Y 1. Fault in sail switch circuit... a . Sail switch is out of adjustment or has failed. b. Sail switch is not closing or fluttering... 1) Check blower (impellor/fan) motor and rotation direction. 2) Restriction in location exhaust system. 2. Failed oven hi-limit circuit. 3. T ripped lint compartment manual reset (225º F [10[...]

54 6. Failed hi-limit thermostat (for Electric Models Only). 7. Extractors (washers) are not performing properly . 8. Low and/or inconsistent gas pressure (for Gas Models Only). 9. Gas supply may have low heating value (for Gas Models Only). 10 . Sail switch is fluttering (for Gas and Electric Models Only)... a . Restriction in location exhaust sys[...]

55 When contacting American Dryer Corporation certain information is required to insure proper service/parts information from ADC . This information is on the data label af fixed 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. SECTION VIII DA T A [...]

56 THE DA T A 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 . 3. MANUF ACTURING CODE NUMBER The manufacturing code number is a number issued by ADC, which desc[...]

57 SECTION IX 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 (a[...]

58 SECTION X 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. c. V erify that the motor(s) and the heat indicator dots, in the microprocesso[...]

59 e . Open main door . The dryer must stop and ALL indicator lights on the back side of the microprocessor controller (computer) board must go out. (Refer to the illustration on the previous page.) f . T ry to restart the dryer with the main door open. g . The microprocessor controller (computer) board s light emitting diode (L.E.D.) display mu[...]

60 SECTION XI BURNER AND BASKET (TUMBLER)/LINT CHAMBER MANUAL RESET HI-LIMIT INSTRUCTIONS IMPOR T ANT MANUAL RESET HI-LIMIT INSTRUCTIONS FOR DUAL TIMER OR PHASE 5 WITHOUT HEA T F AUL T (GAS MODELS ONL Y ) This dryer was manufactured with a burner manual reset hi-limit and basket (tumbler)/lint chamber hi-limit thermostat. If either burner manual re[...]

61 IMPOR T ANT MANUAL RESET HI-LIMIT INSTRUCTIONS FOR DUAL TIMER OR PHASE 5 WITHOUT HEA T F AUL T (ELECTRIC OR STEAM MODELS ONL Y) This dryer was manufactured with a manual reset basket (tumbler)/lint chamber hi-limit thermostat. If the manual reset thermostat is open prior to the start of the drying cycle, or during the cycle, the dryer will not r[...]

ADC 113156 1- 08/28/00-25 2- 09/29/00-25 3- 10/13/00-100 4* 01/09/01-100 5 * 06/20/01-100 6 * 12/03/01-100[...]