Instruction/ maintenance manual of the product ML-190 ADC
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ML-175 / ML-190 Ser vice Manual Phase 6 / Phase 7 Micr opr ocessor Contr ols 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 ADC Part No.
2 American Dryer Corporation 450431 - 3 R etain T his Manual in a Saf e Place for Future Ref er ence This product embodies advanced concepts in engineering, design, and safety . If this product is properly maintained, it will provide many years of safe, ef ficient, and trouble free operation.
450431 - 3 www .amdry .com 3 T a ble of Contents ________ List of Acronyms _____________________ DSI Direct S park Ignition HSI Hot Surface Ignition in wc Inches of Water Column L.E.D. Light Emitting Diode L . P . Liquid Propane OP L On-Premise Laundry (Non-Coin) OSHA Occupational Safety and Health Administration T .
4 American Dryer Corporation 450431 - 3 ▲ WARNING ! Dry only water-washed fabrics. Do not dry articles spotted or washed in dry cleaning solvents, a combustible detergent, or “all purpose” cleaners. Fire or explosion could result. Do not dry rags or articles coated with gasoline, kerosene, paint, or wax.
450431 - 3 www .amdry .com 5 Daily (Beginning) of each work shift. Clean lint from the drawer/screen. Inspect lint screen and replace if torn. W eekl y Clean lint accumulation from lint chamber , thermostat, and microprocessor temperature sensor (sensor bracket) area.
6 American Dryer Corporation 450431 - 3 ! IMPORT ANT : Make-up air must be provided from a source free of dry cleaning fumes. Make-up air that is contaminated by dry cleaning fumes will result in irreparable damage to motors and other dryer components.
450431 - 3 www .amdry .com 7 Gas Bur ner Assembly Gas heated dryers are equipped with a gas burner assembly consisting of four burner tubes, gas valve, ignitor , flame- probe, sail switch, and hi-limit thermostat.
8 American Dryer Corporation 450431 - 3 Idler Shaft Assembly The idler shaft is located on the left side of the machine and is just above the blower motor . The idler shaf t assembly consists of one 1 1-inch (27.94 cm) drive wheel and two pillow block bearings.
450431 - 3 www .amdry .com 9 Main Door Switch The main door switch is located near the main door hinge. When the main door opens, the switch will also open, preventing the dryer from operating. The main door switch is a safety device and should never be disabled.
10 American Dryer Corporation 450431 - 3 Lint Drawer The lint drawer is located at the bottom of the dryer in the lint compartment. Simply grab the lint drawer handle, slide out the drawer , brush off the lint, and slide the drawer back in.
450431 - 3 www .amdry .com 11 T o Replace Microprocessor T emperature Sensor Probe Discontinue electrical power to the dryer . Remove lint drawer . Remove six screws securing lint door and remove lint door . Remove microprocessor sensor bracket assembly from dryer .
12 American Dryer Corporation 450431 - 3 T o Replace Gas V alve (Refer to burner illustration on the next page) Discontinue electrical power to the dryer . Close shutoff valve(s) in gas supply line. Disconnect gas valve wiring. NOTE: Identify location of each wire for correct reinstallation.
450431 - 3 www .amdry .com 13 T o Convert from Natural Gas to L.P . Gas NOTE: All dryers are sold as natural gas, unless otherwise specified at the time the dryer order was placed. For L.P . gas the dryer must be converted as follows. Remove the four screws which secure the top cap assembly .
14 American Dryer Corporation 450431 - 3 Discontinue electrical power to the dryer . Remove lint drawer . Remove two screws securing lint door and remove lint door . Locate sensor bracket assembly and the four Hex head screws securing bracket assembly to the tumbler wrapper .
450431 - 3 www .amdry .com 15 T o Inst all New Main Door Glass Remove main door assembly from dryer (follow main door removal procedure). Lay main door on flat surface with front of door face up. Remove the four #10-32 Acorn nuts. Remove glass and clean all old sealant off main door .
16 American Dryer Corporation 450431 - 3 Tighten the two bolts under the drive shaft clockwise to raise the tumbler and counterclockwise to lower the tumbler . The bolts should be tightened in even increments in order to ensure that the shaft runs p arallel with the base of the dryer .
450431 - 3 www .amdry .com 17 Remove the four bolts holding the two speed reducing shaft pillow block bearings in place and remove shaft assembly from dryer . T o remove front or rear pulley follow steps in “T o Replace Drive Shaft Pulleys”. Loosen and remove the two setscrews in the front/rear pillow block bearing.
18 American Dryer Corporation 450431 - 3 Bask et and Suppor t T o Replace T umbler and T umbler Support Discontinue electrical power to the dryer . Follow procedure for removal of main door assembly . Follow procedure for removal of front panel assembly .
450431 - 3 www .amdry .com 19 Remove old motor pulley and bushing and place on new motor . Follow “T o Replace Motor Pulley”. Reverse these steps to replace drive motor . T o Replace Impellor Motor (Fan Shaft Drive – 50/60 Hz Gas and Steam Models) Discontinue electrical power to the dryer .
20 American Dryer Corporation 450431 - 3 T o Replace Lint Drawer Switch Disconnect electrical power to the dryer . Remove lint drawer and lint door . Disconnect both 4-pin connectors at the rear of the lint switch cover . Remove the one or two screws holding the lint switch cover on.
450431 - 3 www .amdry .com 21 Overload for impellor (fan) motor is tripping... Either an exceptionally low or high voltage supply . Motor bearing failure. Motor vents are blocked with lint. Failed motor . Failed overload. Out of balance impellor (fan).
22 American Dryer Corporation 450431 - 3 bURNER CONTROL FAIL – This routine monitors the ignition control’s gas valve output response. If the valve output signal is not present from the ignition control within the valve time limits the Phase 6 microprocessor controller (computer) determines the ignition control has failed.
450431 - 3 www .amdry .com 23 L.E.D. Display Indicator Number 5 Air Jet Circuit Indicator – OPTIONAL This indicator dot is on at the end of each cycle for approximately 60-seconds. Phase 6 OPL Microprocessor Controller (Computer) Relay Output L.E.D.
24 American Dryer Corporation 450431 - 3 If the dryer is active (running) and the lint door is opened the “LINT” L.E.D. indicator will go out and the display will read “LINT dOOR.” The dryer will stop until the lint drawer has been closed, at which time the L.
450431 - 3 www .amdry .com 25 Input / Output Board L.E.D. Indicators Inputs ESTOP – (RED L.E.D.): This L.E.D. will indicate the status of the E-STOP . If the E-ST OP has been pressed, then the L.E.D. is on. GAS_V – (RED L.E.D.): This L.E.D. will indicate the status of the gas valve.
26 American Dryer Corporation 450431 - 3 Data Label When contacting ADC, cert ain information is required to ensure proper service/part s information. This information is on the data label, located on the top right corner of the dryer , viewed from the rear (refer to illustration).
450431 - 3 www .amdry .com 27 Notes ___________________________________________________________________________________________________________________________ ________________________________________.
ADC Part No. 450431 3 - 06/17/08 - 0.
An important point after buying a device ADC ML-190 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought ADC ML-190 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data ADC ML-190 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, ADC ML-190 you will learn all the available features of the product, as well as information on its operation. The information that you get ADC ML-190 will certainly help you make a decision on the purchase.
If you already are a holder of ADC ML-190, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime ADC ML-190.
However, one of the most important roles played by the user manual is to help in solving problems with ADC ML-190. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device ADC ML-190 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
