Table of Contents
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Table of Contents
Related Manuals for ADC ML-175
Summary of Contents for ADC ML-175
- Page 1 ML-175 / ML-190 Service Manual Phase 6 / Phase 7 Microprocessor Controls 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. 450431-3...
- Page 2 Replacement parts can be obtained from your reseller or the ADC factory. When ordering replacement parts from the factory, you can FAX your order to ADC at +1 (508) 678-9447 or telephone your order directly to the ADC Parts Department at +1 (508) 678-9000. Please specify the dryer model number and serial number in addition to the description and part number, so that your order is processed accurately and promptly.
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Page 3: Table Of Contents
Table of Contents ________ IMPORTANT You must disconnect and lockout the electric supply and the gas supply or the steam supply Important Information ..........4 before any covers or guards are removed from Safety Precautions ..........4 the machine to allow access for cleaning, Routine Maintenance .......... -
Page 4: Important Information
If the guidelines in this section WARNING are met, an ADC dryer will provide many years of efficient, trouble free, and – most importantly – safe operation. WARNING The collection of lint in the burner area and exhaust ductwork can create a potential fire hazard. -
Page 5: Adjustments
If fins are bent, straighten by using a fin addition of a grease fitting, which can be obtained comb, which is available from local air-conditioning supply elsewhere, or from ADC by ordering kit P/N 882159, which houses. includes two fittings. -
Page 6: Electrical And Gas Requirements
If computer program changes are required, refer to the assure that the electrical installation is adequate and Phase 6 OPL Operator’s Manual (ADC P/N 113022) for conforms to local and state regulations or codes. In the details. -
Page 7: Gas Burner Assembly
Reversing Relay Panel Gas Burner Assembly Lifting the control door will reveal the reversing relay box. Gas heated dryers are equipped with a gas burner assembly Located on the back of the relay box is the reversing relay consisting of four burner tubes, gas valve, ignitor, flame- panel. -
Page 8: Idler Shaft Assembly
Idler Shaft Assembly Tumbler Shaft Support The idler shaft is located on the left side of the machine and The tumbler shaft support is located in the rear, is just above the blower motor. The idler shaft assembly approximately at the center of the dryer. The arrangement consists of one 11-inch (27.94 cm) drive wheel and two pillow consists of a tumbler shaft support bracket, two high impact block bearings. -
Page 9: Main Door Switch
Main Door Switch Burner Hi-Limit (Gas Models Only) The main door switch is located near the main door hinge. A burner hi-limit thermostat is located on the burner. This is When the main door opens, the switch will also open, a manual reset disc-type thermostat set at 330°... -
Page 10: Servicing
Servicing ______________________________ Lint Drawer Introduction The lint drawer is located at the bottom of the dryer in the lint compartment. Simply grab the lint drawer handle, slide out All electrical/mechanical service or repairs should be made the drawer, brush off the lint, and slide the drawer back in. with the electrical power to the dryer disconnected (power off). - Page 11 Discontinue electrical power to the dryer. connector, wires, and probe from bracket assembly. Unplug keypad ribbon from rear of computer. Install new sensor probe assembly (ADC P/N 880251) by Slowly peel off and remove keypad label assembly from reversing procedure.
- Page 12 NOTE: Manometers are available from the factory by ordering ADC P/N 122804. To Test Gas Water Column Pressure: Connect water column test gauge connection to gas valve pressure tap (1/8”...
- Page 13 WARNING To 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. Test all connections for leaks by brushing on a gas the dryer must be converted as follows. soapy water solution.
- Page 14 Reverse procedure for installing new thermostat. To Adjust Sail Switch Reestablish electrical power to the dryer. With the dryer operating at a high temperature setting, pull the sail switch away from the burner. The sail switch should open and extinguish the burner. Let the sail switch damper To Replace Lint Compartment return to the burner wall.
- Page 15 Remove glass and clean all old sealant off main door. This area must be completely cleaned for correct bonding. Pulleys Apply a narrow bead of silicone (ADC P/N 170730) all around main door area where glass will rest. To Replace Drive Shaft Pulleys...
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Page 16: Tumbler Alignment
IMPORTANT: Tighten screws evenly and progressively. Never allow the sheave to be drawn in contact with the flange of the bushing. This gap should measure from 1/8” to 1/4”. Proper cap screw torque is 30 ft.-lb. If greater tightening forces are applied, excess pressures will be created in the hub of the mounted sheave, which may cause it to crack. - Page 17 To Replace Rear Tumbler Shaft Support Wheels Disconnect electrical power to the dryer. Remove the four nuts securing the rear support box to the dryer. Remove the center Allen head bolt and Teflon ® washer. Loosen the individual wheel bolts so the rear of the box can be removed.
- Page 18 Basket and Support V-Belt Replacement (Drive Shaft To Speed Reducing Shaft) To Replace Tumbler and Tumbler Support Discontinue electrical power to the dryer. Discontinue electrical power to the dryer. Remove the lint drawer. Follow procedure for removal of main door assembly. Remove the lint door.
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Page 19: Lint Drawer Assembly
Remove old motor pulley and bushing and place on new Loosen the four bolts securing the fan shaft assembly to motor. Follow “To Replace Motor Pulley”. the base of the dryer. Reverse these steps to replace drive motor. NOTE: Models with rear access, it may be easier to remove this plate, to remove the two rear fan shaft assembly bolts. -
Page 20: Troubleshooting
To Replace Lint Drawer Switch No L.E.D. display on microprocessor controller (computer)... Disconnect electrical power to the dryer. Open circuit breaker switch or blown fuse. Remove lint drawer and lint door. Tripped blower motor overload. Disconnect both 4-pin connectors at the rear of the lint switch cover. -
Page 21: Phase 6 Opl System Diagnostics
Phase 6 OPL System Diagnostics ___ Overload for impellor (fan) motor is tripping... Either an exceptionally low or high voltage supply. IMPORTANT: You must disconnect and lockout the electric supply and the gas supply or the steam supply Motor bearing failure. before any covers or guards are removed from the Motor vents are blocked with lint. -
Page 22: L.e.d. Display Indicators
bURNER CONTROL FAIL – This routine monitors the ignition ROTATE SENSOR FAIL – Indicates a rotational sensor circuit control’s gas valve output response. If the valve output signal failure meaning that there is a fault somewhere in the is not present from the ignition control within the valve time tumbler rotating circuit, or the Phase 6 OPL microprocessor limits the Phase 6 microprocessor controller (computer) controller (computer) program related to this circuit (program... -
Page 23: Phase 6 Opl Microprocessor Controller (Computer) Relay Output L.e.d. Indicators
L.E.D. Display Indicator Number 5 “FOR” (FORWARD) Output L.E.D. Indicator (for optional reversing model ONLY) Air Jet Circuit Indicator – OPTIONAL If the dryer is started and the blower motor is operating, but This indicator dot is on at the end of each cycle for the drive (tumbler) motor is not, yet the Phase 6 OPL approximately 60-seconds. -
Page 24: Phase 7 Opl System Diagnostics
If the dryer is active (running) and the lint door is opened the “POWER SUPPLY” Input L.E.D. Indicator “LINT” L.E.D. indicator will go out and the display will read Should be on at all times (even if the dryer is not running). “LINT dOOR.”... -
Page 25: Technical Information
Technical Information ________________ Input / Output Board L.E.D. Indicators Inputs The following section contains various technical information important to the service person in servicing and maintaining ESTOP – (RED L.E.D.): This L.E.D. will indicate the status of the dryer. the E-STOP. If the E-STOP has been pressed, then the L.E.D. -
Page 26: Data Label
ADC, please have the model number and serial number readily accessible. Information on the Data Label Model number — The model number is an ADC number which describes the size of the dryer and the type of heat (gas or steam). - Page 27 Notes ___________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ _________________________________________________________________________________________________________________________________ 450431 - 3 www.amdry.com...
- Page 28 ADC Part No. 450431 3 - 06/17/08 - 0...