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Maytag MDG76PC - page 1
MDG76PC (Phase 7.3 Coin Gas DSI) Installation Manual 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 death. — Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other appliance. — W ...
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Maytag MDG76PC - page 2
“IMPOR T ANT NOTE T O PURCHASER” Information must be obtained from your local gas supplier on the instructions to be followed if the user smells gas. These instructions must be posted in a prominent location near the dryer . FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other a ...
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Maytag MDG76PC - page 3
IMPOR T ANT YOU MUST DISCONNECT AND LOCKOUT THE ELECTRIC SUPPL Y AND THE GAS SUPPL Y BEFORE ANY COVERS OR GUARDS ARE REMOVED FROM THE MACHINE T O ALLOW ACCESS FOR CLEANING , ADJUSTING , INST ALLA TION, OR TESTING OF ANY EQUIPMENT PER OSHA (Occupational Safety and Health Administration) ST ANDARDS. W ARNING CHILDREN SHOULD NOT BE ALLOWED T O PLA Y O ...
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Maytag MDG76PC - page 4
W ARNING The dryer must never be operated with any of the back guards, outer tops, or service panels r emoved. PERSONAL INJUR Y OR FIRE COULD RESUL T . IMPOR T ANT PLEASE OBSER VE ALL SAFETY PRECAUTIONS displayed on the equipment and/or specified in the installation manual included with the dryer . Dryer must not be installed or stored in an area w ...
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Maytag MDG76PC - page 5
SECTION I IMPOR T ANT INFORMA TION ............................................................................... 3 A. Receiving and Handling ............................................................................................................... 3 B . Safety Precautions ...................................................................... ...
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Maytag MDG76PC - page 6
SECTION V DA T A LABEL INFORMA TION ............................................................................. 3 3 A. Data Label ............................................................................................................................... 33 SECTION VI PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS ................... ...
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Maytag MDG76PC - page 7
3 SECTION I IMPOR T ANT INFORMA TION A. RECEIVING AND HANDLING The dryer is shipped in a protective stretch wrap cover with protective cardboard corners and top cover (or optional box) as a means of preventing damage in transit. Upon delivery , the dryer and/or packaging, and wooden skid should be visually inspected for shipping damage. If any dama ...
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Maytag MDG76PC - page 8
4 B. 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 INJUR Y OR FIRE COULD ...
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Maytag MDG76PC - page 9
5 7. A program should be established for the inspection and cleaning of lint in the burner area, exhaust ductwork, and area around the back of the dryer . The frequency of inspection and cleaning can best be determined from experience at each location. W ARNING: The collection of lint in the burner area and exhaust ductwork can create a potential f ...
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Maytag MDG76PC - page 10
6 SECTION II SPECIFICA TIONS/COMPONENT IDENTIFICA TION A. SPECIFICA TIONS Gas Shaded areas are stated in metric equivalents * A minimum of 3/4” pipe must be supplied to the gas inlet for each dryer . NOTE: Manufacturer reserves the right to make changes in specifications at any time without notice or obligation. 052103 BA S K ET ( TU MBLER) D I A ...
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Maytag MDG76PC - page 11
7 Specifications MDG76PC NOTE: Manufacturer reserves the right to make changes in specifications at any time without notice or obligation. ...
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Maytag MDG76PC - page 12
8 B. COMPONENT IDENTIFICA TION 1. Dryer Front V iew Illus. No. Description 1 Controls 2 Control (top access) Door Assembly 3 Main Door Assembly 4 Lint Compartment Area (lint screen located behind door) 5 Data Label and Installation Label (affixed to the left side panel area behind the top control [access] door) ...
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Maytag MDG76PC - page 13
9 2. Dryer Rear V iew Illus. No. Description 1 Heating Unit 2 * Electric Service Relay Box 3 Basket (tumbler) Bearing Mount Assembly 4 Idler Bearing Mount Assembly 5 Basket (tumbler) (drive) Motor Assembly (for reversing models ONL Y) 6 Blower Motor Assembly 7 Dryer Exhaust * Electric service connections for gas models are made in this box. ...
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Maytag MDG76PC - page 14
10 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- LA TEST EDITION (National Fuel Gas Code) or ANSI/NFP A NO. 70-LA TEST EDITION (National Elec ...
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Maytag MDG76PC - page 15
11 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. Every 6 months, inspect the exhaust ducting and remove any lint build up. IMPOR T ANT : Dryer must be installed in a location/environment, which the ambient tempera ...
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Maytag MDG76PC - page 16
12 c . Remove the four (4) self-taping screws on the burner box that secure it to the top of the dryer shown in the illustration below . d. Remove the two (2) self-taping screws on the back electrical box and pull through ALL associated wires from the motor to this electrical box (refer to the illustration below ). e . Reverse procedure for install ...
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Maytag MDG76PC - page 17
13 C. DR YER ENCLOSURE REQUIREMENTS Bulkheads and partitions should be made of noncombustible materials and must be located a minimum of 12-inches (30.48 cm) (18-inches [45.72 cm] or more is recommended for ease of installation, maintenance, and service) above the dryer outer top, except along the front of the dryer which may be partially closed in ...
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Maytag MDG76PC - page 18
14 D. FRESH AIR SUPPL Y REQUIREMENTS When the dryer is operating, it draws in room air , heats it, passes this air through the basket (tumbler), and exhausts it out of the building. Therefore, the room air must be continually replenished from the outdoors. If the make-up air is inadequate, drying time and drying efficiency will be adversely affecte ...
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Maytag MDG76PC - page 19
15 E. EXHAUST REQUIREMENTS 1. General Exhaust Ductwork Information 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 shutdown of the burner by the airflow (sail) switches, ...
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Maytag MDG76PC - page 20
16 NOTE: As per the National Fuel Gas Code, “Exhaust ducts for type 2 clothes dryers shall be constructed of sheet metal or other noncombustible material. Such ducts shall be equivalent in strength and corrosion resistance to ducts made of galvanized sheet steel not less than 0.0195-inches (26 gauge [0.05 mm]) thick.” IMPOR T ANT : Exhaust back ...
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Maytag MDG76PC - page 21
17 IMPOR T ANT : Exhaust back pressure measured by a manometer in the exhaust duct must be no less than 0 and must not exceed 0.3 inches (0.74 mb) of water column. IMPOR T ANT : Minimum duct size for a dryer that is vented vertically is 12-inches (30.48 cm) for a round duct or an equivalent of 80 square inches (516.1 square centimeters). THE DUCT S ...
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Maytag MDG76PC - page 22
18 a . Outside Ductwork Protection 1) T o protect the outside end of the horizontal ductwork from the weather , a 90° elbow bent downward should be installed where the exhaust exits the building. If the ductwork travels vertically up through the roof, it should be protected from the weather by using a 180° turn to point the opening downward. In e ...
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Maytag MDG76PC - page 23
19 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 assure that the electrical installation is adequate and conforms to local and state regulations or codes. In the absence of such codes, ALL electrical connections, materials, ...
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Maytag MDG76PC - page 24
20 2. Electrical Service Specifications IMPOR T ANT : The dryer must be connected to the electric supply shown on the data label that is affixed to the left side panel area behind the top control (access) door . IMPOR T ANT : The wire size must be properly sized to handle the related current. NOTE: Manufacturer reserves the right to make changes in ...
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Maytag MDG76PC - page 25
21 3. Grounding A ground (earth) connection 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/NFP A NO. 70-LA TEST EDITION, or in Canada, the Canadian Electrical Codes Parts 1 & 2 CSA C22.1-1990 or LA TEST ...
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Maytag MDG76PC - page 26
22 If local codes permit, power to the dryer can be made by the use of a flexible U.L. listed power cord/pigtail (wire size must conform to rating of dryer), or the dryer can be hard wired directly to the service breaker panel. In both cases, a strain relief must be installed where the wiring enters the dryer . NOTE: A CIRCUIT SER VICING EACH DR YE ...
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Maytag MDG76PC - page 27
23 G . GAS INFORMA TION It is your responsibility to have ALL plumbing connections made by a qualified professional to assure that the gas plumbing installation is adequate and conforms to local and state regulations or codes. In the absence of such codes, ALL plumbing connections, materials, and workmanship must conform to the applicable requireme ...
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Maytag MDG76PC - page 28
24 2. T echnical Gas Data a . Gas Specifications * Measured at gas valve pressure tap when the gas valve is on. b. Gas Connections Inlet connection ---- 3/4” N.P .T . Inlet supply size ---- 3/4” N.P .T . (minimum) Btu/hr input --------- 204,000 (51,408 kcal/hr) 1) Natural Gas Regulation is controlled by the dryer ’ s gas valve’ s internal r ...
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Maytag MDG76PC - page 29
25 3. Piping/Connections ALL components/materials must conform to National Fuel Gas Code Specifications ANSI Z223.1-LA TEST EDITION, or in Canada, CAN/CGA-B149.1-M91 (Natural Gas) or CAN/CGA-B149.2-M91 (Liquid Propane [L.P .] Gas) or LA TEST EDITION (for General Installation and Gas Plumbing), as well as local codes and ordinances and must be done ...
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Maytag MDG76PC - page 30
26 Consistent gas pressure is essential at ALL gas connections. It is recommended that a 3/4-inch (19.050 mm) pipe gas loop be installed in the supply line servicing a bank of dryers. An in-line pressure regulator must be installed in the gas supply line (header) if the (natural) gas pressure exceeds 12.0 inches (29.9 mb) of water column (W .C.) pr ...
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Maytag MDG76PC - page 31
27 H. PREP ARA TION FOR OPERA TION/ST AR T -UP The following items should be checked before attempting to operate the dryer: 1. Read ALL “ CAUTION ,” “ W ARNING ,” 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 affixed to the left side ...
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Maytag MDG76PC - page 32
28 I. PREOPERA TIONAL TESTS ALL dryers are thoroughly tested and inspected before leaving the factory . However , a preoperational test should be performed before the dryer is publicly used. It is possible that adjustments have changed in transit or due to marginal location (installation) conditions. 1. T urn on electric power to the dryer . a . Op ...
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Maytag MDG76PC - page 33
29 NOTE: T o check for proper sail switch operation, open the main door and while holding main door switch plunger in, start dryer . Dryer should start but heat circuit should not be activated (on). If the heat system is activated, the sail switch is improperly adjusted and must be adjusted by bending the actuator arm of the sail switch toward the ...
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Maytag MDG76PC - page 34
30 6. Check to insure that ALL setscrews (i.e., basket [tumbler] drive, idler , etc.) are tight. J. PREOPERA TIONAL INSTRUCTIONS 1. COIN MODELS a . Microprocessor Controller (computer) 1) When the microprocessor controller (computer) is in the ready state, the liquid crystal display (L.C.D.) screen will display “Ready , Insert $XX.XX (amount) to ...
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Maytag MDG76PC - page 35
31 SECTION IV 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 ...
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Maytag MDG76PC - page 36
32 90 DA YS 1. Remove lint from around basket (tumbler), drive motors, and surrounding areas. 2. Remove lint from gas valve burner area with a dusting brush or vacuum cleaner attachment. 3. Clean any lint accumulation in and around both the blower and drive motor casing openings. EVERY 6 MONTHS Inspect and remove lint accumulation in customer furni ...
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Maytag MDG76PC - page 37
33 SECTION V DA T A LABEL INFORMA TION A. DA T A LABEL Contact Maytag Co. When contacting the Maytag dealer , or the Maytag Co. , certain information is required to insure proper service/ parts information. This information is on the data label affixed to the left side panel area behind the top control (access) door . When contacting Maytag Co. , p ...
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Maytag MDG76PC - page 38
34 THE DA T A LABEL 1. MODEL NUMBER The model number is an Maytag Company number , which describes the size of the dryer and the type of heat (gas, electric, or steam). 2. SERIAL NUMBER The serial number allows Maytag to gather information on your particular dryer . 3. MANUF ACTURING CODE NUMBER The manufacturing code number is a number issued by t ...
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Maytag MDG76PC - page 39
35 SECTION VI PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 1. Microprocessor Controller (Computer) Board a . Phase 7 Coin Models 1) Upon completing installation of the replacement microprocessor controller (computer) board, reestablish power to the dryer . 2) Start the drying cycle by pressing any temperature selection keys (HI, LO, PP) ...
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Maytag MDG76PC - page 40
36 2. For Models W ith Johnson Controls Direct Spark Ignition (DSI) Module (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 D ...
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Maytag MDG76PC - page 41
Part No. 113184 1- 04/23/03-25 2 - 05/14/03-25 3 * 05/27/03-CODE B ...
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