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American Dryer Corp. ADG-330D manual

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Table of contents for the manual

  • Page 1

    ADG-320D and ADG-330D 24 VAC Phase 5 Dual Microprocessor Controller (DMC) Mechanical/Electrical Service Procedures 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 www .amdry .com 062094 ADC Part No. 450303[...]

  • Page 2

    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[...]

  • Page 3

    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 OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) ST ANDARDS. DO NOT STORE OR USE GASOLINE OR[...]

  • Page 4

    IMPOR T ANT PLEASE OBSER VE ALL SAFETY PRECAUTIONS displayed on the equipment and specified in the installation manual included with the dryer . W ARNING DR YER MUST NEVER BE OPERA TED WITHOUT THE LINT FIL TER 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 [...]

  • Page 5

    Table of Contents SECTION I ROUTINE MAINTENANCE .................................................................................... 3 A. Cleaning ..................................................................................................................................... 3 B. Adjustments ....................................................[...]

  • Page 6

    SECTION III TROUBLESHOOTING ........................................................................................... 2 8 SECTION IV ELECTRICAL TROUBLESHOOTING ................................................................ 3 6 SECTION V DA T A LABEL INFORMA TION ............................................................................. 4 1 A[...]

  • Page 7

    3 SECTION I 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 u[...]

  • Page 8

    4 Remove lint accumulation from around the openings in the dryer ’ s back panels. Remove lint from gas valve burner train area with a dusting brush or vacuum cleaner attachment. Remove any lint accumulation from coin acceptor area, including the optical switch. Inspect and remove lint accumulation in customer furnished exhaust ductwork system and[...]

  • Page 9

    5 SECTION II MECHANICAL A. TO REMOVE LINT DRA WER 1. Pull out lint drawer 3/4’ s of the way (approximately 20 inches [50.8 cm]). 2. Reach up into the back of the lint drawer and pull down the retainer (hinge) that is attached to the top of the lint drawer . 3. The lint drawer can now be removed. 4. Reverse procedure for reinstalling the lint draw[...]

  • Page 10

    6 IMPOR T ANT : When removing the gas valve train assembly , be careful not to snag or damage the gas valve train wiring disconnected in Step #6 . 8. Reverse procedure to reinstall the gas valve train assembly . NOTE: Be sure to open ALL gas shutoff valves closed prior to removing the gas valve train assembly . 9. Reestablish power to the dryer . D[...]

  • Page 11

    7 5. Pull up the two (2) metal fingers where the door switch harness is secured to the frame and right side panel of the dryer . 6. Remove ALL nine (9) screws from the front panel. There are four (4) on the left side, four (4) on the right side, and one (1) at the bottom of the panel behind the control door . 7. Gently remove the front panel assemb[...]

  • Page 12

    8 4. T o disassemble bracket assembly from dryer , disconnect the two (2) harness connectors. 5. T o remove the temperature sensor and the connecting harness with its connectors: a . Disassemble microprocessor sensor probe from the bracket by removing the 1/4” push on fastener from the outside of the bracket. b. Remove harness connectors by squee[...]

  • Page 13

    9 10 . The belt will come out from the front of the dryer between the basket (tumbler) and the wrapper . 1 1 . Reverse procedure to install new belt. IMPOR T ANT : Be sure to set the proper belt tension at idler adjustment (follow Belt/Idler T ension Adjustment Procedure in Section K ). 12 . Reestablish power to the dryer . I. TO REMOVE/REPLACE MOT[...]

  • Page 14

    10 14 . Align impellor (fan/blower) to the center of the blower housing hole and remove impellor (fan/blower) by grasping fan with both hands and pulling outward. The key will also come off of the motor shaft in this procedure. 15 . Return to the front of the dryer and disconnect the wiring harness from the motor . 16 . Disassemble the motor from t[...]

  • Page 15

    11 J. TO REMOVE/REPLACE IMPELLOR (F AN/BLOWER) 1. Discontinue power to the dryer . 2. Remove the lint drawer, the control/lint door , and the control box from the dryer (follow Control Box Removal Procedure in Section D ). NOTE: If lower basket (tumbler) is being serviced, the control box does not have to be removed. 3. Loosen, ( DO NOT remove) the[...]

  • Page 16

    12 14 . The impellor (fan/blower) must now be adjusted/centered in the blower housing. Align the center of the motor shaft (at impellor [fan/blower]/shaft bearing), so that the center of the motor shaft is exactly 8- inches (20.32 cm) from the left side panel. a . Once the impellor (fan/blower) is properly centered, tighten the two (2) nuts of the [...]

  • Page 17

    13 L. TO REMOVE DUAL MICROPROCESSOR CONTROLLER (DMC) COMPUTER P ANEL ASSEMBL Y 1. Discontinue power to the dryer . 2. Remove the lint drawer and the control door from the dryer (follow Lint Drawer and Control/Lint Door Removal Procedures in Section A and Section B ). 3. Remove screw in the lower right hand corner of the control panel, securing the [...]

  • Page 18

    14 IMPOR T ANT : When installing the new Dual Microprocessor Controller (DMC) computer , make sure that the transformer on the DMC computer is located at the bottom area of the control panel. 9. Reverse S tep #1 through Step #6 . NOTE: When reconnecting the optic switch harness connector for single coin acceptor models, connect the harness to the l[...]

  • Page 19

    15 O. TO REPLACE COIN ACCEPT OR 1. Discontinue power to the dryer . 2. Remove the lint drawer and the control door from the dryer (follow Lint Drawer and Control/Lint Door Removal Procedures in Section A and Section B ). 3. Remove the screw located in the bottom right hand corner of the control panel. 4. Disconnect the optic switch connector(s) fro[...]

  • Page 20

    16 Q. BASKET (TUMBLER) ALIGNMENT - VER TICAL (REFER T O P AGE 17 ) 1. Discontinue power to the dryer . 2. Remove the upper half of the rear split back guard panel to either the top or the bottom basket (tumbler), depending on which basket (tumbler) is being serviced. 3. Loosen the four (4) hex head bolts on the sides of the bearing box (two [2] on [...]

  • Page 21

    17 b. T o decrease gap R, loosen (turn counterclockwise [CCW]) adjustment bolt B and tighten (turn clockwise [CW]) adjustment bolt A. c . T o increase gap L, loosen (turn counterclockwise [CCW]) adjustment bolt B and tighten (turn clockwise [CW]) adjustment bolt A. d. T o decrease gap L, loosen (turn counterclockwise [CCW]) adjustment bolt A and ti[...]

  • Page 22

    18 S. T O REPLACE BASKET (TUMBLER) AND/OR BASKET (TUMBLER) SUPPOR T 1. Discontinue power to the dryer . 2. Remove the lint drawer and the control/lint door from the dryer (follow Lint Drawer and Control/Lint Door Removal Procedures in Section A and Section B ). 3. If lower basket (tumbler) is being serviced, proceed to S tep #4 . If upper basket (t[...]

  • Page 23

    19 14. Make the necessary vertical alignment and lateral alignment adjustments (follow Basket [T umbler] V ertical Alignment and Basket [T umbler] Lateral Alignment Pr ocedures in Section Q and Section R ). 15 . Reinstall both the upper and lower halves of the rear split back guard panels removed in S tep #6 . 16 . Make the necessary belt/idler adj[...]

  • Page 24

    20 4. Remove front panel from the basket (tumbler) being serviced (follow Front Panel Removal Procedure in Section E ). 5. Remove belt from dryer (follow Belt Removal Procedure in Section H ). 6. Remove the upper half of the rear split back guard panel to either the top or the bottom basket (tumbler), depending on which basket (tumbler) is being se[...]

  • Page 25

    21 V . TO REPLACE 330º (BURNER) HI-LIMIT SWITCH (THERMOST A T) NOTE: The 330º (burner) hi-limit switch (thermostat) is located on the burner box chamber at the rear of dryer . 1. Discontinue power to the dryer . 2. Remove the lower half of the split back guard panel to either the top or the bottom basket (tumbler), depending on which basket (tumb[...]

  • Page 26

    22 X. TO REPLACE MAIN DOOR SWITCH 1. Discontinue power to the dryer . 2. Open the main door completely . 3. Remove the two (2) Phillips head screws holding the main door switch housing in place. 4. Disconnect the main door switch wires from the switch (two [2] yellow wires). 5. Disassemble door switch by removing the two (2) nuts and washers holdin[...]

  • Page 27

    23 Z. TO REPLACE IGNIT OR/PROBE ASSEMBL Y 1. Discontinue power to the dryer . 2. Remove the lint drawer, the control/lint door , and the gas valve train assembly from dryer (follow Gas V alve T rain Removal Pr ocedure in Section C ). 3. T o replace either ignitor probe or flame sensor probe, simply remove Phillips head screw holding device to brack[...]

  • Page 28

    24 10 . Reinstall the control/lint door and the lint drawer removed in S tep #3 . 1 1 . Open ALL shutof f valves closed in S tep #2 . 12 . Reestablish power to the dryer . BB. TO CONVER T DR YER FROM NA TURAL GAS T O LIQUID PROP ANE (L.P .) GAS 1. Discontinue power to the dryer . 2. Close ALL gas shutof f valves in gas supply line to the dryer . 3.[...]

  • Page 29

    25 13 . Reestablish power to the dryer . CC. TO REPLACE COIN V AUL T 1. Discontinue power to the dryer . 2. Remove both the upper and lower lint drawers and the control/lint doors from the dryer (follow Lint Drawer and Control/Lint Door Removal Pr ocedures in Section A and Section B ). 3. Remove the control box and the lower front panel from the dr[...]

  • Page 30

    26 EE. TO INST ALL NEW MAIN DOOR GLASS 1. Remove the main door assembly from the dryer (follow Main Door Removal Procedure in Section DD ). 2. Lay main door on flat surface with front of door face down. 3. Apply a narrow bead of silicone ( ADC P/N: 170730) ALL around the main door area where the glass will rest. IMPOR T ANT : This area must be comp[...]

  • Page 31

    27 3. Remove the main door switch housing from the front panel (follow Main Door Switch Replacement Procedure in Section X ). 4. Disassemble main door hinge from the front panel by removing the four (4) nuts securing hinge to back side of the front panel. 5. Position the new hinge, so that the part of the hinge that the main door is secured to, is [...]

  • Page 32

    28 SECTION III TROUBLESHOOTING The information provided is a quick reference to help isolate the most probable component(s) associated with the difficulty described. The experienced technician realizes, however, that a loose connection or broken or shorted wire may be at fault where electrical components are concerned...not necessarily the suspect [...]

  • Page 33

    29 D . The dryer will not stop, even with no cycle (light emitting diode [L.E.D.] display reads “FILL”) in progress... 1. Failed motor contactor/relay . E . The dryer operates for a few minutes, and with the dual microprocessor controller (DMC) computer motor L.E.D. indicator dot on, the motor stops, and then after a period of time restarts on [...]

  • Page 34

    30 3. Parameter in Program Location 01 (PL01) set incorrectly . a . Bad coin program should be set for “bCrS” and not “bCLO.” I. Dual Microprocessor Controller (DMC) computer light emitting diode (L.E.D.) display reads “dSFL”... 1. L.E.D. display consistently reads “dSFL” and will not clear ... a . DMC computer 1/8-amp (Slo-Blo) fus[...]

  • Page 35

    31 K . Dual Microprocessor Controller (DMC) computer light emitting diode (L.E.D.) display reads “SEFL”... The “SEFL” display condition indicates a rotational sensor circuit failure, which means that there is a fault somewhere in the basket (tumbler) rotation detection circuit...or ...the DMC computer program related to this circuit (PL01) [...]

  • Page 36

    32 If dryer does not have optional battery back up... 1. Loose connection somewhere in the power sourc to the dryer . 2. Loose connection in main power circuit to the dual microprocessor controller (DMC) computer . 3. Improper grounding of the dryer or the DMC computer ground connections to the panel or the dryer are not proper . 4. Failed DMC comp[...]

  • Page 37

    33 4. Failed Direct Spark Ignition (DSI) module. 5. Failed gas valve. R . No heat (gas models only)...ignitor sparks, burner goes on and off right away ... 1. DSI flame sensor (probe) is out of adjustment...reposition closer to the flame area. 2. Failed DSI flame sensor probe. 3. Sail switch is fluttering... a . Lint drawer/screen is dirty or clogg[...]

  • Page 38

    34 4. Failed steam damper 24 V AC pneumatic solenoid switch. 5. Failed steam damper piston. U . Dr yer 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. Low and/or inconsistent gas pressure (gas model[...]

  • Page 39

    35 W . Dryer is making scraping noise at basket (tumbler) area... 1. Check for object(s) caught in the basket (tumbler) wrapper area. 2. Basket (tumbler) is out of proper alignment... a . Check both the vertical alignment and lateral alignment. b. Check gap between the front panel and the basket (tumbler) front...setscrews may have come loose and b[...]

  • Page 40

    36 SECTION IV ELECTRICAL TROUBLESHOOTING NOTE: Diagrams used in this section include: B474721, B47261 1, B483751, and ALL the revisions (a revision is the letter after the number ‘ie’...B474721 B.) NOTE: A VOL T/OHM meter is needed for this section. A . No Display Condition... 1. Check top pocket circuit breaker panel for this particular dryer [...]

  • Page 41

    37 If voltage is present: a . Manually push down the top of the contactor . If motor turns, replace the contactor . b. If motor does not turn, problem is bad wire(s) or termination(s) from contactor down to the motor or faulty motor . NOTE: Make sure high voltage (1 10-240V) is present across the top half of the contactor . If voltage is not presen[...]

  • Page 42

    38 7. If no voltage, replace the computer . D . “No Heat” Condition (electric models) NOTE: The following sections must be performed with the appropriate output light emitting diode (L.E.D.) and appropriate L.E.D. indicator dots on. Make sure sail switch damper is closing properly . IMPOR T ANT : By no means should the sail switch be tampered w[...]

  • Page 43

    39 NOTE: In the following steps, when checking the voltage leave one of your meter leads attached to terminal block #7 or any good ground connection. NOTE: The following sections must be performed with the appropriate output light emitting diode (L.E.D.) and appropriate L.E.D. indicator dots on. 1. Check for voltage across the two (2) black wires o[...]

  • Page 44

    40 4. Check for voltage on pin #2 (yellow wire) of the computer 9-pin connector (top 9-pin connector is for the top basket [tumbler] and bottom 9-pin connector is for the bottom basket [tumbler]). If voltage is present, replace the computer . 5. If the above steps were performed correctly , the problem could be a bad wire(s) or termination(s), from[...]

  • Page 45

    41 SECTION V DA T A LABEL INFORMA TION A. DA T A LABEL Contact American Dryer Corporation 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 inside of the control door . When contacting ADC , please have the model num[...]

  • Page 46

    42 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[...]

  • Page 47

    43 B . TESTING AND ADJUSTING GAS PRESSURE There are two (2) types of devices commonly used to measure water column pressure. They are spring/mechanical-type gauge and manometer . The spring/ mechanical-type gauge is not recommended, because it is easily damaged and not always accurate. A manometer is simply a glass or transparent plastic tube with [...]

  • Page 48

    44 C. L.E.D. DISPLA Y CODES A Automatic Cycle (Slope Program Factor) ACOn Accumulative Coin Adrt Maximum Auto Dryness T ime AF At Amount for Additional T ime AGt Active Anti-W rinkle Guard Time AtIn Accumulative T ime AtS t Amount to Start AUtO Automatic Mode (Patent No. 4,827,627) b Automatic Cycle (Heat Loss [offset] Factor) bCLO Bad Coin Lockout[...]

  • Page 49

    45 SECTION VI PHASE 5 DUAL MICROPROCESSOR CONTROLLER (DMC) SYSTEM DIAGNOSTICS ALL major circuits, including door , lint drawer , microprocessor temperature sensor, heat and motor circuits are monitored. The Phase 5 DMC computer will inform the user , via the light emitting diode (L.E.D.) display and at the outputs of each relay (and door switch cir[...]

  • Page 50

    46 4. “ Hot ” a . Indicates a possible overheating condition. The Phase 5 Dual Microprocessor Controller (DMC) computer monitors the temperature in the dryer at ALL times. If the Phase 5 DMC computer detects that the temperature in the dryer has exceeded 170º F (77º C), it will disable ALL the outputs (shut the dryer down), the tone (buzzer) [...]

  • Page 51

    47 2. “ HEA T ” Output light emitting diode (L.E.D.) Indicator a . If the dryer is started and there is no heat, yet the Phase 5 Dual Microprocessor Controller (DMC) computer display heat circuit indicator dot is on, but the “HEA T” output L.E.D. indicator is off, then the fault is in the Phase 5 DMC computer itself. If both the heat indica[...]

  • Page 52

    48 SECTION VII PHASE 5 DUAL MICROPROCESSOR CONTROLLER (DMC) PROGRAMMING LIMITS P h ase 5 Du al M i cro processo r C on troller P ro grammi n g L i mi ts Pr og r a m Loc a t ion Par am et er Ran ge I n cr em en t s PL0 2 “ PdrY ” A uto Cycle p erc e n tage of dr yness 90% to 100% 1 PL0 3 “ HI ” D rying Te m p er ature 110º F to 150º F 43º[...]

  • Page 53

    ADC 450303 1- 04/04/94-10 2- 06/03/94-100 3* 11/21/94-200 4 - 05/08/95-50 5* 10/30/95-200 6* 12/03/96-200 7 - 01/30/98-50 8* 06/05/98-50 9- 09/10/98-100 10 - 08/12/99-100 11 - 06/08/00-100 12 - 09/26/00-75 13 - 09/07/01-100 14 - 04/11/03-10 15 * 06/13/03-15[...]