MLG31PCB Installation Manual Phase 7 Coin 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 death. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — WHAT TO DO IF YOU SMELL GAS: • Do not try to light any appliance. • Do not touch any electrical switch; do not use any phone in your building.
Retain This Manual In A Safe Place For Future Reference This product embodies 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. OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment or specified in the installation manual included with the dryer.
IMPORTANT YOU MUST DISCONNECT AND LOCK OUT 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, ADJUSTING, INSTALLATION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) STANDARDS. “Caution: Label all wires prior to disconnection when servicing controls. Wiring errors can cause improper operation.
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. WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER/SCREEN IN PLACE, EVEN IF AN EXTERNAL LINT COLLECTION SYSTEM IS USED. IMPORTANT PLEASE OBSERVE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer.
Table of Contents SECTION I SAFETY PRECAUTIONS .............................................................................................3 SECTION II SPECIFICATIONS .........................................................................................................5 SECTION III INSTALLATION PROCEDURES ...............................................................................7 A. B. C. D. E. F. G. H. I. J. Unpacking/Setting Up ....................................................................
SECTION VII ROUTINE MAINTENANCE ......................................................................................34 A. Cleaning ......................................................................................................................................... 34 B. Adjustments ................................................................................................................................... 35 C. Lubrication .........................................................................
SECTION I 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. PERSONAL INJURY OR FIRE COULD RESULT. 1. DO NOT store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. 2.
WARNING: DO NOT use heat for drying articles that contain plastic, foam, sponge rubber, or similarly textured rubber materials. Drying in a heated basket (tumbler) may damage plastics or rubber and may be a fire hazard. 7. A program should be established for the inspection and cleaning of lint in the heating unit area, exhaust ductwork, and inside the dryer. The frequency of inspection and cleaning can best be determined from experience at each location.
SECTION II SPECIFICATIONS MAXIMUM CAPACITY (TOTAL DRY WEIGHT) 60 lbs 27.2 kg BASKET (TUMBLER) DIAMETER 27-1/4” 69.22 cm 30” 76.2 cm 10.1 cu ft 0.286 cu m BASKET (TUMBLER) MOTOR (2 PLACES) 1/3 hp 0.279 kW DOOR OPENING – DIAMETER (2 PLACES) 21-1/2” 54.61 cm BASKET (TUMBLER) DEPTH BASKET (TUMBLER) VOLUME (PER BASKET) GAS VOLTAGE AVAILABLE 115v 1ø 2w 60 Hz APPROX. WEIGHT (UNCRATED) 793 lbs 359.7 kg APPROX. WEIGHT (CRATED) 860 lbs 390.1 kg 136,000 Btu/hr 34,272 kcal/hr 400 cfm 11.
SPECIFICATIONS – GAS ONLY EV 6/17/04 NOTE: Manufacturer reserves the right to make changes in specifications at any time without notice or obligation.
SECTION III INSTALLATION PROCEDURES 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 Z223.1LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (National Electrical Code) or in Canada, the installation must conform to applicable Canadian Standards: CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.
1. The dryer must be installed on a sound level floor capable of supporting its weight. Carpeting must be removed from the floor area that the dryer is to rest on. IMPORTANT: “The dryer must be installed on noncombustible floors only.” 2. The dryer must not be installed or stored in an area where it will be exposed to water or weather. 3. The dryer is for use in noncombustible locations. 4.
8. Dryer must be located in an area where correct exhaust venting can be achieved as noted in this manual (refer to Exhaust Requirements in Section E). IMPORTANT: Dryer should be located where a minimum amount of exhaust duct will be necessary. 9. The dryer must be installed with a proper exhaust duct connection to the outside. 10. The dryer must be installed with provisions for adequate combustion and make-up air supply. CAUTION: This dryer produces combustible lint and must be exhausted to the outdoors.
D. FRESH AIR SUPPLY REQUIREMENTS Air supply (make-up air) must be given careful consideration to ensure proper performance of each dryer. An unrestricted source of 800 cfm (22.65 cmm) is necessary for each dryer. An unrestricted air entrance from the outdoors (atmosphere) of a minimum of 1-1/2 square feet (0.14 square meters) is required for each dryer. This area must be enlarged if louvers or registers cover the opening. It is not necessary to have a separate make-up air opening for each dryer.
E. EXHAUST REQUIREMENTS Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductwork will create excessive back pressure, which results in slow drying, increased use of energy, overheating of the dryer, and shut down of the burner by the airflow (sail) switches, burner hi-limits, or basket (tumbler) hi-heat thermostats. The dryer must be installed with a proper exhaust duct connection to the outside.
2. Single Dryer Venting Where possible, it is suggested to provide a separate exhaust duct for each dryer. The exhaust ductwork should be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible. It is suggested that the use of 90º turns in ducting be avoided; use 30º or 45º angles instead. The shape of the exhaust ductwork is not critical as long as the minimum cross-sectional area is provided.
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3. Multiple Dryer (Common) Venting If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be channeled into a “common main duct.” The individual ducts should enter the bottom or side of the main duct at an angle not more than 45º in the direction of airflow. The main duct should be tapered, with the diameter increasing before each individual 10-inch (25.4 cm) duct (when dryer common exhaust is used) is added. If single 6-inch (15.
To protect the outside end of the horizontal ductwork from the weather, a 90º elbow bent downward should be installed where the exhaust exits the building. If the exhaust ductwork travels vertically up through the roof, it should be protected from the weather by using a 180º turn to point the opening downward. In either case, allow at least twice the diameter of the duct between the duct opening and nearest obstruction.
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F. ELECTRICAL INFORMATION 1. Electrical Requirements It is your responsibility to have ALL electrical connections made by a properly licensed and competent electrician to ensure that the electrical installation is adequate and conforms with local and state regulations or codes. In the absence of such codes, ALL electrical connections, materials, and workmanship must conform to the applicable requirements of the National Electrical Code ANSI/NFPA NO.
3. Grounding Grounding (earth) connections must be provided and installed in accordance with state and local codes. In the absence of these codes, grounding must conform to applicable requirements of the National Electrical Code ANSI/NFPA NO. 70-LATEST EDITION, or in Canada, the installation must conform to applicable Canada Standards: Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LATEST EDITION. The ground connection may be to a proven earth ground at the location service panel.
G. GAS INFORMATION It is your responsibility to have ALL plumbing connections made by a qualified professional to ensure that the gas plumbing installation is adequate and conforms with local and state regulations or codes. In the absence of such codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requirements of the National Fuel Code ANSI Z223.1-LATEST EDITION or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN.CGA-B149.2-M91 (Liquid Propane [L.P.
2. Technical Gas Data a. Gas Specifications TYPE OF GAS NATURAL 3.5 inches W.C. 8.7 mb 10.5 inches W.C. 26.1 mb 6.0 - 12.0 inches W.C. 14.92 - 29.9 mb 11.0 inches W.C. 27.4 mb Manifold Pressure* In-Line Pressure LIQUID PROPANE Shaded areas are stated in metric equivalents * Measured at gas valve pressure tap when gas valve is on. Gas Inlet Size (Each Basket [Tumbler]) 1/2” F.N.P.T.
3. Piping/Connections ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LATEST EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P.] Gas) or LATEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and must be done by a qualified professional.
The size of the main gas supply line (header) will vary depending on the distance this line travels from the gas meter (or in the case of liquid propane [L.P.] gas, the supply tank), the number of tees, other gas-operated appliances on the supply line, etc. Specific information regarding supply line size should be determined by the gas supplier. NOTE: Undersized gas supply piping can create a low or inconsistent pressure, which will result in erratic operation of the burner ignition system.
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H. PREPARATION FOR OPERATION The following items should be checked before attempting to operate the dryer: 1. Read ALL “CAUTION,” “WARNING,” and “DIRECTION” labels attached to the dryer. 2. Check incoming supply voltage to be sure that it is the same as indicated on the dryer data label. 3. GAS MODELS – check to ensure that the dryer is connected to the type of heat/gas indicated on the dryer data label. 4.
4) The dryer will continue through the drying and cooling cycles until the time vended has expired. NOTE: The dryer can be stopped at any time by opening the main loading door or pressing the pause key. To restart the dryer, press appropriate temperature selection key. 5) Upon completion of the drying and cooling cycles, the buzzer will sound, and the dryer will go into the Anti-Wrinkle mode for 99 minutes, or until the main door is opened.
NOTE: Water column (W.C.) pressure requirements (measured at the gas valve pressure tap): Natural Gas .............................. 3.5 Inches (8.7 mb) Water Column. Liquid Propane (L.P.) Gas ........ 10.5 Inches (26.1 mb) Water Column. IMPORTANT: THERE IS NO REGULATOR PROVIDED IN AN L.P. DRYER. The water column pressure must be regulated at the source (L.P. tank) or an external regulator must be added to each dryer. 4. Make a complete operational check of ALL safety-related circuits (i.e.
J. SHUTDOWN INSTRUCTIONS In the case where the dryer is to be shutdown (taken out of service) for a period of time, the following must be performed: 1. Discontinue power to the dryer (both baskets [tumblers]) either at the external disconnect switch or the circuit breaker. 2. Discontinue the gas supply: a. SHUT OFF external gas supply shutoff valve (for both the top basket [tumbler] and the bottom basket [tumbler] where the independent supply line for each basket [tumbler] is used). b.
SECTION IV OPERATING INSTRUCTIONS A. COIN MODE 1. When at least one (1) of the dryer’s pockets is in the ready state and no cycle is in progress, the liquid crystal display (L.C.D.) screen will display a ready prompt depending on the READY PROMPT option in PL01 Control Settings. If the option is set to “READY, INSERT AMOUNT TO START”, the display will read “READY, INSERT $ XX.XX TO START”. If the READY PROMPT option in PL01 is set to “READY”, the display will read “READY.
B. FREE MODE 1. When the controller is in the ready state and no cycle is in progress, the liquid crystal display (L.C.D.) screen will display “SELECT TEMP TO START”. 2. Select temperature by pressing “HI” , “MED” , or “LO” display the Dry Cycle selected and the remaining time. . The cycle will start and the controller will 3. The dryer will continue through the drying and cooling cycles, until the drying time has expired. 4.
E. CLEARING CREDIT/CLEARING CYCLE Credit can be cleared from either dryer pocket by using the following key combination. With the program switch down, press and hold the “PAUSE” key while entering “HI-HI-HI-LO-LO-MED”. The combination is the “HI” key three (3) times followed by the “LO” key two (2) times and then the “MED” key one (1) time. Wait 1-second for the control to prompt the user with “CLEAR CREDIT?” If you want to proceed, simultaneously press the “PAUSE” button and one (1) of the remaining keys.
SECTION V SERVICE/PARTS INFORMATION A. SERVICE Only properly licensed or trained technicians should service the dryer. If service is required, contact the dealer from whom the equipment was purchased. If the dealer cannot be contacted or is unknown, contact the Maytag Co. for a dealer in your area. NOTE: When contacting the Maytag Co., be sure to give them the correct model number and serial number so that your inquiry is handled in an expeditious manner. B.
SECTION VI WARRANTY INFORMATION A. RETURNING WARRANTY CARDS Before any dryer leaves the manufacturer, a warranty card is placed on the back side of the main door glass. These warranty cards are intended to serve the customer, where we record the individual installation date so as to extend the customer’s warranty period. IMPORTANT: A separate warranty card must be completed and returned for each individual dryer. NOTE: Be sure to include the installation date when returning warranty card(s). B.
SECTION VII 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 upon proper air circulation. The accumulation of lint can restrict this airflow.
WARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCTWORK CAN CREATE A POTENTIAL FIRE HAZARD. WARNING: DO NOT OBSTRUCT THE FLOW OF COMBUSTION AIR AND VENTILATION AIR. WARNING: INSPECT AND REMOVE ANY LINT ACCUMULATION, WHICH CAN CAUSE THE BACK DRAFT DAMPER TO BIND OR STICK. NOTE: A back draft damper that is sticking partially closed can result in slow drying and shut down of the heat circuit safety switches and/or thermostats. NOTE: When cleaning dryer cabinet(s), avoid using harsh abrasives.
SECTION VIII DATA LABEL INFORMATION When contacting the Maytag dealer, certain information is required to ensure proper service/parts information. This information is on the data label, which is located in the gas train area (right inside wall near sail switch) behind the middle control (access) door. When contacting the Maytag Co., please have the model number and serial number available. 1. MODEL NUMBER – Describes the size of the dryer and the type of heat (gas, electric, or steam). 2.
SECTION IX PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS KEYBOARD (TOUCH PAD) LAYOUT 1. Liquid Crystal Display 2. Top Pocket HI Key 3. Top Pocket MED Key 4. Top Pocket LO Key 5. Top Pocket PAUSE Key 6. Bottom Pocket HI Key 7. Bottom Pocket MED Key 8. Bottom Pocket LO Key 9.
1. For Models with Johnson Direct Spark Ignition (DSI) Controller (G760) Theory of Operation: Start the drying cycle. When the gas burner ignites within the chosen trial for ignition time (6-seconds), the flame sensor detects gas burner flame and signals the DSI module to keep the gas valve open as long as there is a call for heat. The DSI module will “LOCK OUT” if the gas burner flame is not sensed at the end of the trial for ignition period.
Optional Exhaust Duct Kit P/N 882035 ITEM # QTY P/N DESCRIPTION 1 1 143600 10” X 6” X 6”, Y DUCT 2 1 143519 FLEX DUCT 6” x 4’ LONG 3 1 143509 FLEX DUCT 6” x 8’ LONG 4 2 143536 45º ELBOW 6” NOT ILLUSTRATED 12 150300 #10 x 1/2” SELF-DRILLING SCREW NOT ILLUSTRATED 12’ 117505 ALUMINUM DUCT TAPE Optional Gas Piping Kit P/N 880128 113203-3 Maytag 39
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