Benutzeranleitung / Produktwartung ML-170 des Produzenten American Dryer Corp.
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122999SL/tcosta ADC Part No. 450429 ML-145 / ML-170 Service Manual Phase 6 Microprocessor Controls and Timer Controls American Dryer Corporation 88 Currant Road Fall River, MA 02720-4781 Telephone: (508) 678-9000 / Fax: (508) 678-9447 e-mail: techsupport@amdry.
Retain This Manual In A Safe Place For Future Reference 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.
IMPORTANT YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANING, ADJUST- ING, INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA (Occupational Safety and Health Administration) STANDARDS.
WARNING The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL INJURY or FIRE COULD RESULT. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation and operator's manual included with the dryer.
Table of Content SECTION I IMPOR T ANT INFORMA TION .......................................................................... 3 A. Safety Precautions ....................................................................................................
SECTION V SER VICING ....................................................................................................... 16 Introduction ..............................................................................................................
3 SECTION I IMPOR T ANT INFORMA TION A. SAFETY PRECAUTIONS WARNING: 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. WARNING: The dryer must never be operated with any of the back guards, outer tops, or service panels removed.
4 WARNING: DO NOT dry mop heads. Contamination by wax or flammable solvents will create a fire hazard. WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or similarly textured rubber materials. Drying in a heated tumbler (basket) may damage plastics or rubber and also may be a fire hazard.
5 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 duct work system. The frequency of cleaning can best be determined from experience at each location.
6 NOTE: To prevent damage, avoid cleaning and/or touching ignitor/flame-probe assembly. Remove lint accumulation from inside control box and at rear area behind control box. 6 MONTHS Inspect and remove lint accumulation in customer furnished exhaust duct work system and from dryer’s internal exhaust ducting.
7 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: National Fuel Gas Code ANSI.
8 IMPORTANT: Failure to comply with these codes or ordinances and/or the requirements stipulated in this manual can result in personal injury or component failure. The gas dryer installation must meet the American National Standard, National Fuel Gas Code ANSI Z223.
9 NOTE: Water column pressure requirements (measured at the pressure tap on the gas valve body): Natural Gas - 3.5 inches water column (8.7 mb). L.P. Gas - 10.5 inches water column (26.1 mb). 6. If computer program changes are required, refer to the Phase 6 OPL Operator’s Manual ( ADC Part No.
10 SECTION IV DESCRIPTION OF PAR TS A. CONTROL PANEL (MICROPROCESSOR) Opening the control panel will allow access to the major components which include the microprocessor computer board and the keyboard (touchpad). The keyboard (touchpad) inputs to the computer what temperature and program has been selected.
11 D. HSI (HOT SURF ACE IGNITION) MODULE (Gas Models ONL Y ) The HSI (Hot Surface Ignition) system consists of a microprocessor (computer) based control module, along with an ignitor/flame-probe assembly. This control utilizes a 24 V carbide ignitor and a rectified flame sensor/probe signal to locally control ALL basic functions in the gas burner.
12 G . BLOWER MOT OR and IMPELLOR (GAS and STEAM) The impellor is shaft driven. The blower motor drives the shaft on which the impellor is mounted. This enables the impellor to run at a higher RPM, thereby producing a higher airflow. (CFM). H. IDLER ASSEMBL Y (Viewing from the rear of the dryer.
13 J. TUMBLER (BASKET) The tumbler (basket) consists of four (4) ribs and four (4) perforated panels, along with a front and back, which are screwed together as an assembly. The tumbler (basket) also consists of tie rods, which support the tumbler (basket) from the front to back.
14 M. HI-LIMIT (Gas Models ONL Y ) A hi-limit thermostat is located at the burner. This is a manual reset disc-type thermostat set at 330º F (166º C). If the flame in the burner should get too hot, this thermostat will shut off the burner. This is generally caused by low airflow through the dryer.
15 P . LINT DRA WER SWITCH The lint drawer switch is located in the lint compartment and attached to the side of the lint drawer track. The lint drawer switch insures that the dryer will operate only when the lint drawer is completely closed. This is a safety device and should never be disabled.
16 SECTION V SER VICING INTRODUCTION ALL electrical and mechanical service or repairs should be made with the electrical power to the dryer disconnected (power off). WARNING: PERSONAL INJURY COULD RESULT. The information provided in this section should not be misconstrued as a device for use by an untrained person making repairs.
17 8. Reestablish electrical power to the dryer. To Replace Keyboard (Touchpad) Label Assembly 1. Discontinue electrical power to the dryer. 2. Unplug keyboard (touchpad) ribbon from rear of the microprocessor computer. 3. Slowly peel off and remove keyboard (touchpad) label assembly from control panel.
18 B. IGNITION CONTROLS To Remove Hot Surface Ignitor (Refer to above burner illustration) 1. Discontinue electrical power to the dryer. 2. Disconnect the two (2) wires connecting the ignitor to the HSI module. 3. Disassemble ignitor from burner by removing the self tapping screw.
19 7. Remove valve mounting bracket, manifold, and piping from gas valve. 8. Reverse procedure for installing new gas valve. WARNING: Test ALL connections for leaks by brushing on a soapy water solution. WARNING: NEVER TEST FOR LEAKS WITH A FLAME !!! To Replace Main Burner Orifices 1.
20 2. To Adjust Water Column Pressure (natural gas only, L.P. gas must be regulated at source): a. Remove the slotted vent cap on the top of the valve. b. Turn the slotted adjustment screw located on the top of the valve next to the terminals. Turn clockwise (CW) to increase manifold pressure and counterclockwise (CCW) to decrease.
21 5. Remove the screws securing the burner tube rest to the oven and remove this rest. 6. Remove screws securing the flame probe, and HSI Ignitor burner box cover plate to the oven. 7. Remove burner tubes by sliding them out. 8. Replace by reversing procedure.
22 To Replace Lint Compartment Hi-Heat Protector (225º F [107º C]) Thermostat This thermostat is part of the “sensor bracket assembly” and is secured to the underside of the tumbler (basket) wrapper in the lint compartment. As a safety device, this thermostat will open (shut off) the heating unit circuit if an excessive temperature occurs.
23 To Adjust Sail Switch 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 return to the burner wall. The sail switch should close to restart the burner ignition cycle.
24 To Install New Main Door Glass 1. Remove main door assembly from dryer (follow main door removal procedure). 2. Lay main door on flat surface with the front of the door facing up. 3. Remove the four (4) acorn nuts securing the glass. 4. Remove glass and clean ALL old sealant off main door.
25 To Replace Main Door Hinge Blocks 1. Discontinue electrical power to the dryer. 2. Follow procedure for removal of main door assembly. 3. Disassemble bottom hinge block from front panel by removing the Allen head screws located inside the hinge block.
26 To Replace Small Idler Pulley 1. Loosen V-belts. Rotate pulley and roll V-belts out of grooves. 2. Remove cap screws from the bushings. 3. Insert cap screws in tapped removal holes and tighten evenly until bushing becomes loose on shaft. Refer to figure “A” on previous page.
27 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”.
28 5. Turn these bolts clockwise (CW) evenly to raise tumbler (basket) or counterclockwise (CCW) evenly to lower tumbler (basket). 6. Rotate tumbler (basket) from front and check alignment with front door opening.
29 5. Remove tumbler (basket) belts. 6. Remove tumbler (basket) pulley. 7. Remove tumbler (basket) assembly and support. a. Loosen the two (2) set screws on both the pillow block bearing collars. b. Remove the retaining rings from the grooves of the tumbler (basket) shaft.
30 4. Loosen lateral adjustment jam nuts and bolts. (Refer to illustration in section G “Tumbler (Basket) Alignment”) 5. Loosen set screws (2) from rear pillow block bearing collar. 6. Remove the rear bearing bolts, securing bearing to bearing mount.
31 6. Slide bearing off the shaft. 7. Replace bearing by reversing procedure. 8. Align idler pulley with tumbler (basket) pulley before tightening bolts. 9. Reestablish electrical power to the dryer. To Replace Rear Idler Shaft Pillow Block Bearing 1.
32 V-Belt Tension Adjustment (Motor to Idler) 1. Discontinue electrical power to the dryer. 2. Loosen the nuts on the four (4) studs holding the drive motor mount to the back of the dryer. 3. Loosen the jam nuts on the adjustment screw on the top of the motor mount.
33 9. Reestablish electrical power to the dryer. To Replace Impellor Motor (Fan Shaft Drive - Gas and Steam Models 50 & 60 Hz) 1. Discontinue electrical power to the dryer. 2. Remove drive belts. 3. Disconnect wiring harness from motor. 4. Remove bolts holding motor to mount and replace with new motor.
34 L. LINT DRA WER ASSEMBL Y To Replace Lint Screen 1. Pull out lint drawer. 2. Remove lint screen from lint drawer. 3. Drop new lint screen in place. 4. Slide lint drawer back into dryer. To Replace Lint Drawer Switch 1. Disconnect electrical power to the dryer.
35 SECTION VI TROUBLESHOOTING IMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MACHINE TO ALLOW ACCESS FOR CLEANIN G , ADJUSTIN G , INSTALLATION, or TESTING OF ANY EQUIPMENT per OSHA (Occupational Safety and Health Administration) STANDARDS.
36 C. Display is reading “Rotation Sensor Fail.” 1. Magnet and rotation read switch are out of adjustment. 2. Trunnion shaft has moved forward. 3. Magnet is missing. 4. Rotation read switch is broken. 5. Broken V-belt. 6. Faulty drive motor. 7. Faulty wiring connection between read switch and computer.
37 E. Display is reading “Sail Switch Fail.” 1. Sail switch is out of adjustment. 2. Sail switch is hung up. 3. Customer has an exhaust booster fan that draws too much air. 4. Faulty wiring connection between computer and sail switch. 5. Faulty computer.
38 I. Display is reading “Burner Control Failure.” 1. Faulty flame probe. 2. Faulty HSI (Hot Surface Ignition) module. 3. Faulty wiring connection between HSI module and gas valve or between gas valve and Phase 6 computer. 4. Faulty computer. J. Display is reading “Burner Flame Failure.
39 N. Display is reading “Hot.” 1. Lint screen is dirty. 2. Exhaust is clogged. 3. Lint drawer is not closed ALL the way. 4. Faulty computer. 5. Faulty temp sensor. O. Dryer operates but is taking too long to dry... 1. An inadequate exhaust duct work system.
40 Q. Overload for impellor (fan) motor is tripping... 1. Either an exceptionally low or high voltage supply. 2. Motor bearing failure. 3. Motor vents are blocked with lint. 4. Failed motor. 5. Failed overload. 6. Out of balance impellor (fan). 7. Insufficient make-up air.
41 SECTION VII ELECTRICAL TROUBLESHOOTING The information provided will help isolate the most probable components 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.
42 SECTION VIII PHASE 6 OPL SYSTEM DIAGNOSTICS IMPORTANT: YOU MUST DISCONNECT and LOCKOUT THE ELECTRIC SUPPLY and THE GAS SUPPLY or THE STEAM SUPPLY BEFORE ANY COVERS or GUARDS ARE REMOVED FROM THE MA.
43 6. bURNER CONTRL 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.
44 11. ROTATE SENSOR FAIL - Indicates a rotational sensor circuit failure meaning that there is a fault somewhere in the tumbler (basket) rotating circuit, or the Phase 6 OPL microprocessor controller (computer) program related to this circuit (Program Location 2) is set incorrectly.
45 4. L.E.D. DISPLA Y INDICA T OR NUMBER 4 a. On Indicator: 1) This indicator dot is on whenever a cycle is in progress. Additionally, when the Anti-Wrinkle program is active, the indicator dot will be on whenever the Phase 6 OPL microprocessor controller (computer) is in the Guard On Time program.
46 1. “FAN” (BLOWER) Output L.E.D. (light emitting diode) Indicator a . If the dryer is started and the blower motor is not operating, yet both the Phase 6 OPL microprocessor controller (computer) display fan indicator dot and power supply input L.
47 6. “FUSE” (MAIN FUSE) Input L.E.D. Indicator a . Should be on ALL the time (even if the dryer is not running). If the L.E.D. (light emitting diode) is not on; then the display will read “CHECK MAIN FUSE.” If the main fuse is good then the fault is on the Phase 6 microprocessor controller (computer).
48 12. “FLAME” (bURNER CONTROL FAIL) Input L.E.D. Indicator a. 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 microprocessor determines the ignition control has failed.
49 SECTION IX L.E.D. DISPLA Y/CODES The L.E.D. (light emitting diode) display informs the operator of cycle status, program verification, and displays important diagnostic codes and fault codes. A. L.E.D. DISPLA Y OPERA TING ST A TUS 1. Cycles in Progress a.
50 1) Illustration No. 1 a) FORWARD INDICATOR - this indicator dot is functional for dryer models with the Reversing Action Option ONLY. This indicator dot will be on when the tumbler (basket) is in the forward (clockwise [CW]) direction.
51 C. L.E.D. CODES 1. Display Codes A ALL REV ANTI WRINKL dELAY TIME ANTI WRINKL GUARd ACTIVE ANTI WRINKL GUARd ON TIME AUTO CYCLE b bURNER CONTROL FAIL bURNER FLAME FAIL bURNER SAFETY FAIL bUZZ bUZZ .
52 2. Fault Codes bURNER CONTROL F AIL - GAS MODELS ONL Y POWER (24 V AC) IS NOT EVIDENT A T GAS V AL VE b URNER FLAME F AIL - The Phase 6 Microprocessor Controller (Computer) DOES NOT SENSE FLAME VER.
53 D. COMPUTER LOGIC and WIRING DIAGRAM 1. Operator enters desired selection(s). 2. Information entered is sent to the microcontroller via the keyboard (touchpad). 3. The input information is sorted/processed and executed by the microcomputer chip. 4.
54 A. No Display Condition... 1. Check main fuses or circuit breaker. 2. Check blower motor overload...If tripped, reset. 3. Check fuse 1 or fuse 2 and if either are blown, replace. 4. Check to make sure “ EMERGENCY STOP” (E-Stop) button is not depressed.
55 C. Drive motor works in forward mode but does not reverse, blower motor runs... 1. If computer dot (second one from left) does not come on, check program to see if set for reverse. 2. If set for reverse, replace computer. 3. Check for voltage across the coil of the reversing contactor located in the rear panel box.
56 E. “No Heat” Drive and Blower Motors Run (Gas Models)... 1. Check for voltage across L1 and GND of the HSI module. If no voltage is present, then check for voltage from terminal #14 on the blower contactor to ground. If no voltage is present, the problem is with blower contactor.
57 G. “Door” Condition NOTE: Make sure main door is closed. Also, if checking either switch, the plunger must be depressed. 1. Check L.E.D. (light emitting diode) input light “door” on the component side of the computer. If the light is on, replace the computer.
58 SECTION X TECHNICAL INFORMA TION The following section contains various technical information important to the service person in servicing and maintaining the dryer.
59 B. DA T A LABEL Contacting American Dryer Corporation (ADC) When contacting ADC , certain information is required to insure proper service/parts information. This information is on the data label, located on the top right corner of the dryer, viewed from the rear (refer to illustration).
60 C. USING A MANOMETER How to Use a Manometer 1. With dryer in nonoperating mode, remove plug on the gas valve pressure tap. 2. Attach plastic tubing to pressure tap. Fitting is supplied with manometer (refer to illustration). 3. Attach manometer to dryer using magnet.
61 D. ML-170 T OOL LIST Straight Head Screwdriver Phillips Head Screwdriver Sensor Pin and Socket Tool (P/N 122801) Pliers 1/4” Nut Driver 3/8” Open End Wrench 5/8” Open End Wrench 5/8” Deep S.
ADC 450429 1 - 02/18/00-25.
Ein wichtiger Punkt beim Kauf des Geräts American Dryer Corp. ML-170 (oder sogar vor seinem Kauf) ist das durchlesen seiner Bedienungsanleitung. Dies sollten wir wegen ein paar einfacher Gründe machen:
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Jedoch ist die eine der wichtigsten Rollen, die eine Bedienungsanleitung für den Nutzer spielt, die Hilfe bei der Lösung von Problemen mit American Dryer Corp. ML-170. Sie finden dort fast immer Troubleshooting, also die am häufigsten auftauchenden Störungen und Mängel bei American Dryer Corp. ML-170 gemeinsam mit Hinweisen bezüglich der Arten ihrer Lösung. Sogar wenn es Ihnen nicht gelingen sollte das Problem alleine zu bewältigen, die Anleitung zeigt Ihnen die weitere Vorgehensweise – den Kontakt zur Kundenberatung oder dem naheliegenden Service.
