American Dryer Corp. MLG31PCB manual

RETAIN THESE INSTRUCTIONS IN A SAFE PLACE FOR FUTURE REFERENCE 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[...]

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 t[...]

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. WARNING CHILDREN SHOULD NOT BE ALLOWED T[...]

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 manual included with the dryer. WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTE[...]

Table of Contents SECTION I SAFETY PRECAUTIONS ............................................................................................. 3 SECTION II SPECIFICA TIONS ......................................................................................................... 5 SECTION III INST ALLA TION PROCEDURES ..................................[...]

SECTION VII ROUTINE MAINTENANCE ...................................................................................... 34 A. Cleaning ......................................................................................................................................... 34 B. Adjustments ............................................................[...]

113203-3 Maytag 3 SECTION I SAFETY PRECAUTIONS W ARNING: 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. W ARNING: The dryer must never be operated with any of the back guards, outer tops, or service panels removed. PERSONAL I[...]

4 Maytag 113203-3 W ARNING: 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 du[...]

113203-3 Maytag 5 SECTION II SPECIFICA TIONS GAS MAXIMUM CAPACITY (TOTAL DRY WEIGHT) 60 lbs 27.2 kg BASKET (TUMBLER) DIAMETER 27-1/4” 69.22 cm BASKET (TUMBLER) DEPTH 30” 76.2 cm BASKET (TUMBLER) VOLUME (PER BASKET) 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 VOL[...]

6 Maytag 113203-3 NOTE: Manufacturer reserves the right to make changes in specifications at any time without notice or obligation. SPECIFICA TIONS – GAS ONL Y EV 6/17/04[...]

113203-3 Maytag 7 SECTION III INST ALLA TION 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 Z223.1- LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70-LATEST EDITION (N[...]

8 Maytag 113203-3 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[...]

113203-3 Maytag 9 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. 1[...]

10 Maytag 113203-3 D. FRESH AIR SUPPL Y 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[...]

113203-3 Maytag 11 E. EXHAUST REQUIREMENTS Exhaust ductwork should be designed and installed by a qualified professional. Improperly sized ductw ork 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 ba[...]

12 Maytag 113203-3 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 30[...]

113203-3 Maytag 13[...]

14 Maytag 113203-3[...]

113203-3 Maytag 15 3. Multiple Dryer (Common) Venting If it is not feasible to provide separate exhaust ducts for each dryer, ducts from individual dryers may be chan neled 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 sh[...]

16 Maytag 113203-3 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, a[...]

113203-3 Maytag 17[...]

18 Maytag 113203-3 F . ELECTRICAL INFORMA TION 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 conne[...]

113203-3 Maytag 19 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 Stan[...]

20 Maytag 113203-3 G . GAS INFORMA TION 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 ap[...]

113203-3 Maytag 21 2. Technical Gas Data a. Gas Specifications Shaded areas are stated in metric equivalents * Measured at gas valve pressure tap when gas valve is on. F.N.P.T. = Female National Pipe Thread b. Natural Gas Regulation is controlled by each gas valve’s internal regulator. Incoming supply pressure must be consistent between a minimum[...]

22 Maytag 113203-3 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 [...]

113203-3 Maytag 23 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 t[...]

24 Maytag 113203-3[...]

113203-3 Maytag 25 H. PREP ARA TION FOR OPERA TION 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 – che[...]

26 Maytag 113203-3 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 buzz[...]

113203-3 Maytag 27 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 REGULA T OR PROVIDED IN AN L.P . DR YER . The water column pressure mu[...]

28 Maytag 113203-3 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 s[...]

113203-3 Maytag 29 SECTION IV OPERA TING 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 [...]

30 Maytag 113203-3 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” . The cycle will start and the controller will display the Dry Cycle selected and the rema[...]

113203-3 Maytag 31 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 [...]

32 Maytag 113203-3 SECTION V SER VICE/P AR TS INFORMA TION A. SER VICE 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 [...]

113203-3 Maytag 33 SECTION VI W ARRANTY INFORMA TION A. RETURNING W ARRANTY 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. IMP[...]

34 Maytag 113203-3 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 efficie[...]

113203-3 Maytag 35 W ARNING: THE ACCUMULATION OF LINT IN THE EXHAUST DUCTWORK CAN CREATE A POTENTIAL FIRE HAZARD. W ARNING: DO NOT OBSTRUCT THE FLOW OF COMBUSTION AIR AND VENTILA TION AIR. W ARNING: INSPECT AND REMOVE ANY LINT ACCUMULA TION, WHICH CAN CAUSE THE BACK DRAFT DAMPER TO BIND OR STICK . NOTE: A back draft damper that is sticking partiall[...]

36 Maytag 113203-3 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 an[...]

113203-3 Maytag 37 SECTION IX PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS KEYBOARD (TOUCH PAD) LA YOUT 1. Liquid Crystal Display 2. Top Pocket HI Key 3. T op P ocket MED K ey 4. Top Pocket LO Key 5. T op P ocket PAUSE K ey 6. Bottom Pocket HI Key 7. Bottom Pocket M ED Key 8. Bottom Pocket LO Key 9. Bottom Pocket PAUSE Key[...]

38 Maytag 113203-3 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 hea[...]

113203-3 Maytag 39 Optional Exhaust Duct Kit P/N 882035 Optional Gas Piping Kit P/N 880128 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” N OT I LLUSTRA TED 12 150300 #10 x 1/2” SELF-DRILLING SCREW N OT I LLUSTRA TED 12’ 1 1[...]

Part No. 113203 3-03/15/05-14[...]