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AD-360X2 Mechanical/Electrical Service Procedure 101802SRS/wmarelli ADC Part No. 450213 American Dryer Corporation 88 Currant Road Fall River , MA 02720-4781 T elephone: (508) 678-9000 / Fax: (508) 678-9447 e-mail: techsupport@amdry .
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.
IMPOR T ANT YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS 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.
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.
SECTION I IMPOR T ANT INFORMA TION ............................................................................... 3 A. Safety Precautions ................................................................................................................
SECTION VI BCD-1 TYPE MODULE .......................................................................................... 2 9 A. Introduction ...............................................................................................................
3 SECTION I IMPOR T ANT INFORMA TION 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 and/or user should consult the local gas supplier for proper instructions to be followed in the event the user smells gas.
4 SECTION II 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.
5 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 S UGGESTED INTER V AL 6 MONTHS Drive belts should be examined. Cracked or seriously frayed belts should be replaced.
6 SECTION III INST ALLA TION REQUIREMENTS 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.
7 B. ELECTRICAL AND GAS REQUIREMENTS 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.
8 The dryer must be connected to the type of gas (natural or liquid propane [L.P .]) indicated on the dryer data label. If this information does not agree with the type of gas available, contact the reseller who sold the dryer or contact the ADC factory .
9 SECTION IV DESCRIPTION OF P AR TS A. CONTROL PANEL The coin panel assembly consists of the coin operator , a display board, and the keyboard (touch pad) label. The coin acceptor is used to acknowledge that the proper coin has been put through the acceptor .
10 D. DOOR SWITCH (HINGE BLOCK) The main door switch is located behind the main door on the right hand side. When the main door is opened, the switch will also open, preventing the dryer from operating. The main door switch is a safety device and should never be disabled.
11 H. IDLER ARM AND IMPELLOR MOUNT ASSEMBL Y The idler assembly is located in the back of the dryer , which is attached to the drive motor assembly . The main purpose of the idler assembly is to reduce the speed of the motor , in turn increasing the torque of the basket (tumbler) pulley .
12 K. GAS BURNER The gas burner assembly consists of two (2) burner tube orifices (the orifice has a hole in it to allow gas to flow through). The hole size varies with different elevation Btus, gas valve (which can be up for natural or liquid propane [L.
13 N. LINT DRA WER SWITCH The lint drawer switch is located under the basket (tumbler) on the right side. It is another added safety device that stops the operation of the dryer , when the lint drawer is opened. This device and the door switch are the two (2) safety switches designed to halt the basket (tumbler).
14 Q. REAR BASKET (TUMBLER) DRIVE WHEELS There is a left and right basket (tumbler) drive wheel bracket assembly . This allows the basket (tumbler) to spin freely without bearings or basket (tumbler) support shaft. R. ROT A TIONAL SENSOR ASSEMBL Y The Rotational Sensor Assembly is located in the rear of the dryer .
15 SECTION V SER VICE A. INTRODUCTION ALL electrical or mechanical service or repairs should be made with the electrical power to the dryer disconnected (power off). W ARNING: PERSONAL INJURY COULD RESUL T . The information provided in this section should not be misconstrued as a device for use by an untrained person making repairs.
16 5. Disconnect the keyboard (touch pad) connector from the computer board keyboard (touch pad) harness (simply pull straight out). 6. Disconnect the 9-pin main computer harness from the computer (squeeze the one [1] tab on the connector and pull straight back).
17 TO REMOVE OPTIC SWITCH 1. Disconnect power to the dryer . 2. Remove top or bottom coin panel. 3. Remove optic switch from the coin acceptor (one [1] screw). 4. Unplug optic switch connector . 5. Remove optic switch from the dryer . 6. Reverse procedure for installing new optic switch.
18 REPLACE BURNER TUBE ASSEMBL Y (Refer to the illustration below ) 1. Discontinue power to the dryer . 2. Remove the four (4) hex nuts that hold the burner hood bracket to the burner box. 3. Remove the two (2) hex nuts that hold the burner tube to the burner box.
19 C. BURNER CONTROLS (GAS) The illustration below shows you the gas valve assembly and the gas chamber . TO REPLACE MAIN BURNER ORIFICE 1. Discontinue power to the dryer . 2 . Remove back guard. 3. Remove screws securing gas valve bracket to the burner box, and remove the two (2) screws securing pipe bracket.
20 T O TEST AND ADJUST GAS (W A TER COLUMN [W .C.]) PRESSURE There are two (2) types of devices commonly used to measure water column pressure. They are spring/ mechanical type gauges and manometers. The spring/mechanical type gauge is not recommended because it is easily damaged and not always accurate.
21 T O CONVER T FROM NA TURAL T O LIQUID PROP ANE (L.P .) GAS 1. Disconnect electrical power to the dryer . 2. Close ALL shutoff valves in dryer gas supply line. 3. Disconnect gas valve wiring. NOTE: Identify location of each wire for correct reinstallation.
22 T O REPLACE D IRECT SP ARK IGNITION ( DSI) MODULE 1. Discontinue power to the dryer . 2. Remove the back guard. 3. Remove the wires connected to the terminal strip at the bottom of the module. 4. Remove the four (4) nuts securing the module to the mounting bracket.
23 T O REMOVE THE TEMPER A TURE SENSOR OR HIGH HEA T PROTECT OR 1. High Heat Protector a . Discontinue power to dryer . b. Remove the lint drawer from the dryer . c . Remove the two (2) free spin wash nuts that is securing the temperature sensor bracket to the dryer .
24 E. SAIL SWITCH ASSEMBL Y The sail switch is a heat circuit safety device, which controls the heat circuit only . When the dryer is operating and there is proper airflow , the sail switch damper pulls in and closes the sail switch, providing ALL the other heat related circuits are functioning properly .
25 F . FRONT P ANEL AND MAIN DOOR ASSEMBLIES TO REPLACE MAIN DOOR SWITCH 1. Discontinue power to the dryer . 2. Open main door . 3. Remove the two (2) Phillips head screws holding the main door switch in place. 4. Disassemble door switch bracket by removing the two (2) nuts holding the door switch to the housing, and remove the door switch.
26 T O REPLACE FRONT P ANEL 1. Discontinue power to the dryer . 2. Remove the computer panels. 3. Remove the kick trim plate. 4. Remove lint screen drawers from the dryer . 5. Remove the screws securing the front panel to the dryer . 6. Disconnect the 4-pin door switch harness connector from the lint drawer switch box, top and bottom.
27 TO REPLACE ROT A TIONAL SENSOR SWITCH 1. Discontinue electrical power to the dryer . 2. Remove the magnetic rotational sensor switch from the bracket by loosening the nuts. 3. Depress the tabs on the rotational sensor harness plug and pull apart, then remove the sensor switch.
28 BASKET (TUMBLER) REMOV AL 1. Disconnect power to the dryer . 2. Remove the control panels and kick trim plate. 3. Remove the front panel, and disconnect the door switches. 4. Now remove the motor separator panel if removing the top basket (tumbler).
29 SECTION VI BCD-1 TYPE MODULE A. INTRODUCTION The Direct Spark Ignition (DSI) system operates at 24 V AC and is a discrete component based gas ignition control (DSI module) system, which utilizes a line frequency spark as an ignition source. Safe proof of flame is accomplished through flame rectification.
30 The module also provides for safe proof of ignition. If a flame is not sensed by the flame-probe electrode (of the ignitor/flame-probe assembly) within a specified time frame, the module will de-ener gize the gas valve and the ignitor/flame-probe assembly , and go into the LOCKOUT mode.
31 IMPOR T ANT : THE GAP SETTING ON THE IGNIT OR/FLAME-PROBE ASSEMBL Y IS CRITICAL. d. The Direct Spark Ignition (DSI) 24 V AC gas valve(s) used are of the redundant type, which means the gas valve is actually two (2) gas valves in one (1); one (1) in series with the other .
32 C. G-760 DIRECT SP ARK IGNITION (DSI) FLOWCHAR T 1. Normal Operation (Summary) On a call for heat by the dryers’ controls, 24 V AC is applied to the DSI module at which time the modules’ light emitting diode (L.E.D.) indicator will light “GREEN” indicating that power has been established to the module.
33 D. TROUBLESHOOTING The troubleshooting information provided in this manual is intended for use only by qualified service technician. Observe ALL safety precautions displayed on the equipment or specified in the installation/operator’ s manual included with the dryer .
34 1. Direct Spark Ignition (DSI) T roubleshooting T erms (Definitions) a. LOCKOUT Mode - DSI module “GREEN” light emitting diode (L.E.D.) indicator light blinks continuously . This indicates there is a system fault and most likely the fault is that the DSI module was not able to ignite the gas.
35 2) Direct Spark Ignition (DSI) module light emitting diode (L.E.D.) indicator lights “GREEN” for up to approximately 1.5-seconds (prepur ge). This indicates that ALL the controls (including ALL the safety circuits) are functioning and power is being supplied to the DSI module.
36 1) T o ef fectively use this information or the flowcharts (on page 37 , page 38 , and page 39 ), each step must be completed in sequence, performing whatever tests are suggested.
37 d. Troubleshooting Flowchart - Quick Reference... First V isual Check NO SP ARK AND SYSTEM DOES NOT WORK Repl ace trans former . Deter mine why volt age is not present . Is po wer avail able at pr imary? NO YES Are therm ostats cont acts and limi t control c ontacts clos ed? NO YES Clos e conta cts.
38 e . T roubleshooting Flowchart - Quick Reference... Second V isual Check SP ARK PRESENT BUT MAIN BURNER DOES NOT COME ON Is main valve wi ring securely attached to term inal M.
39 f . T roubleshooting Flowchart - Quick Reference... Third V isual Check MAIN BURNER LIGHTS BUT DOES NOT ST A Y ON Is f lame sensor cable secu rely atta ched to ter minal 4? NO YES Does conti nuity .
40 3. T roubleshooting/System Detailed Diagnosis When the dryer calls for heat, 24 V AC from the step down transformer is applied to the “THS” and “GND” (ground) terminals of the Direct Spark Ignition (DSI) module. The DSI module light emitting diode (L.
41 a ) Connect water column (W .C.) test gauge (manometer) to the gas valve pressure tap (1/8” N.P .T .). b) Start the dryer ...with the burner on, the correct water column reading in inches should be: Natural Gas .................................. 3.
42 NOTE: T o reset the Direct Spark Ignition (DSI) module if it is in the LOCKOUT mode, open and close the main door , then restart the dryer . (a ) T o check and/or set the 1/8” gap, use a DSI Ignitor gap feeler gauge (refer to the illustration on page 41 ) or similar type device to determine the gap size.
43 NOTE: T o reset the Direct Spark Ignition (DSI) module if it is in the LOCKOUT mode, open and close the main door , then restart the dryer . 4) DSI Module If there is some sort of operational inter.
44 a ) Primary Side This is the incoming voltage side -120 V AC, 208 V AC, 230/240 V AC - of the transformer . b) Secondary Side This is the step down side - 24 V AC - of the transformer .
45 (e ) One (1) YELLOW or ORANGE wire supplies the 24 V AC signal for the control and/ or DSI circuit. (Refer to specific wiring diagram with the dryer for connection point.
46 DIRECT SP ARK IGNITION (DSI) SYSTEM COMPONENTS 24 V AC DIRECT SP ARK IGNITION (DSI) TRANSFORMER ADC PN 141403 G760 DIRECT SP ARK MODULE ADC PN 128935.
47 SECTION VII TROUBLESHOOTING The information provided will help isolate the most probable components associated with the difficulty described. The experienced technician realizes that a loose connection or broken or shorted wire may be at fault where electrical components are concerned, however , not necessarily the suspected component itself.
48 IMPOR T ANT : The Phase 5 coin microprocessor controller (computer) has its own internal heat sensing circuit fuse protection, located on the back side of the controller .
49 NOTE: If the dryer is started (the light emitting diode [L.E.D.] display indicator dots are on) and there are no outputs (heat and/or motor output L.E.D.s are off) and the “ dOOr ” input L.E.D. is on, the fault is in the Phase 5 microprocessor controller (computer) itself.
50 B. NO HEA T CONDITION (BLOWER IS ON) The following procedure must be performed with the microprocessor controller (computer) display in the normal operating mode, the heat indicator dot on, and the light emitting diode (L.E.D.) output light is on. V oltage is 24 V AC unless otherwise specified.
51 1. With the heat indicator on check for voltage at J1 connector 9-pin connector pin #8 (orange wire to ground) if 24 volt is present. 2. If no voltage (24 V AC) check for loose connection at 9-pin connector or problem may be faulty microprocessor .
52 C. NO ST AR T CONDITION Follow this test procedure, providing that the microprocessor controller (computer) is functioning where the display is in the normal operating mode and the motor indicator dot is on, and the light emitting diode (L.E.D.) motor output light is on.
53 D. NO DISPLA Y CONDITION NOTE: Regardless of the voltage (120-240 V AC) make sure the voltage selector switch is set to 1 15 V AC. 1. Check power supply . (Dryer voltage 1 10v , 208v , 220v) (Circuit breaker box or fuse panel) 2. Check fuse 2 (3/4-amp Slo-Blo) if blown, replace it.
54 E. “dSFL” DISPLA Y CONDITION When the display reads “ dSFL ” this condition indicates a fault in the microprocessor controller (computer) heat circuit. This circuit includes the microprocessor controller (computer), microprocessor temperature sensor (located in lint compartment) and wires to and from these two (2) points.
55 F . “dOOr” DISPLA Y CONDITION When the display reads “ dOOr ,” this indicates that there is a fault (open circuit) somewhere in the microprocessor controller ’ s (computer ’ s) door switch circuit. Include the door switch, microprocessor controller (computer) and the wires to end from these two (2) points.
56 SECTION VIII 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 ensure proper service or parts information from ADC . This information is on the data label, which is af fixed to the left side panel/wall area behind the bottom control panel.
57 4. TYPE OF HEA T This describes the type of heat for your particular dryer: gas (either natural gas or liquid propane [L.P .] gas), electric, or steam. 5. HEA T INPUT (for GAS DR YERS) This describes the heat input in British Thermal Units per Hour (Btu/hr).
58 C. LIGHT EMITTING DIODE (L.E.D.) DISPLAY CODES A Automatic Cycle (Slope Program Factor) ACOn Accumulative Coin Adrt Maximum Auto Dryness T ime AF A t Amount For Additional T ime AGt Active Anti-W rinkle Guard Time AtIn Accumulative T ime AtSt Amount Start AUtO Automatic Mode (Patent No.
59 The revision number is located on the top right hand corner of the diagram. It is a six (6) digit number followed by a letter to distinguish the version dates (refer to the illustration ). Y our particular model will be different depending on the date of manufacturing and options available.
60.
ADC 450213 1- 08/18/03-25.
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