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MDG31 / MDG51 / MDG77
Installation/Operator Manual
AVERTISSEMENT: Assurez-vous de bien
WARNING: For your safety the information
suivre les instructions données dans cette
in this manual must be followed to
notice pour réduire au minimum le risque
minimize the risk of fire or explosion and
d’incendie ou d’explosion ou pour éviter
to prevent property damage, personal
tout dommage matériel, toute blessure ou
injury or death.
la mort.
— Do not store or use gasoline or other
— Ne pas entreposer ni
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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. The following “FOR YOUR SAFETY” caution must be posted near the dryer i
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Table of Contents _______ IMPORTANT You must disconnect and lockout the electric supply and the gas supply or the steam supply Safety Precautions ................................4 before any covers or guards are removed from the machine to allow access for cleaning, Specifications ........................................6 adjusting, installation, or testing of any equipment per OSHA standards. Installation Procedures ......................14 Location Requirements ................................
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Do not operate steam dryers with more than 150 psi (10.34 Safety Precautions ____________________ bar) steam pressure. Excessive steam pressure can damage Warning the steam coil and/or harm personnel. For your safety, the information in this manual Replace leaking flexible hoses or other steam fixtures ! must be followed to minimize the risk of fire or immediately. Do not operate the dryer with leaking flexible explosion and to prevent property damage, personal injury, hoses. Personal injury
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Exhaust duct outlet should be checked periodically for NOTES ____________________________________ blockages, and if any found, removed. ___________________________________________ Important A means of restraint must be used to prevent ! ___________________________________________ straining of the gas supply when the appliance is moved. ___________________________________________ An external means of power removal (disconnect device) must be provided by the installer. __________________________
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6 Maytag Co. 113430-3
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113430-3 Telephone: (641) 787-7000 7
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MDG31 Specifications ________________________________________________________________ 13.61 kg MAXIMUM CAPACITY (DRY WEIGHT) 30 lb TUMBLER DIAMETER 30” 76.20 cm TUMBLER DEPTH 27” 68.58 cm 312.62 L TUMBLER VOLUME 11.04 cu ft TUMBLER/DRIVE MOTOR 1/4 hp 0.18 kW BLOWER/FAN MOTOR 1/2 hp 0.37 kW 49.23 cm DOOR OPENING (DIAMETER) 19-3/8” DOOR SILL HEIGHT 14-7/8” 37.78 cm WATER CONNECTION 3/4”-11.5 NH DRYERS PER 20’/40’ CONTAINER 12 / 28 DRYERS PER 48’/53’ TRUCK 34 / 38 VOLTAGE AVAILABLE 120v 1ø 2w
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MDG31 Specifications ________________________________________________________________ 113430-3 Telephone: (641) 787-7000 9
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MDG51 Specifications _________________________________________________________________ MAXIMUM CAPACITY (DRY WEIGHT) 50 lb 22.68 kg 93.98 cm TUMBLER DIAMETER 37” TUMBLER DEPTH 25-3/4” 65.41 cm TUMBLER VOLUME 16.02 cu ft 453.64 L 0.75 kW TUMBLER/DRIVE MOTOR 1 hp BLOWER/FAN MOTOR 1/2 hp 0.37 kW DOOR OPENING (DIAMETER) 27-3/8” 69.55 cm 40.64 cm DOOR SILL HEIGHT 16” WATER CONNECTION 3/4”-11.5 NH DRYERS PER 20’/40’ CONTAINER 10 / 22 DRYERS PER 48’/53’ TRUCK 28 / 30 VOLTAGE AVAILABLE 120-240v 1ø
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MDG51 Specifications _________________________________________________________________ 113430-3 Telephone: (641) 787-7000 11
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MDG77 Specifications ______________________________________________________________ MAXIMUM CAPACITY (DRY WEIGHT) 75 lb 34.02 kg 93.98 cm TUMBLER DIAMETER 37” TUMBLER DEPTH 35-1/2” 90.17 cm TUMBLER VOLUME 22.09 cu ft 625.52 L 0.75 kW TUMBLER/DRIVE MOTOR 1 hp BLOWER/FAN MOTOR 1/2 hp 0.37 kW DOOR OPENING (DIAMETER) 27-3/8” 69.53 cm 40.64 cm DOOR SILL HEIGHT 16” WATER CONNECTION 3/4”-11.5 NH DRYERS PER 20’/40’ CONTAINER 9 / 20 DRYERS PER 48’/53’ TRUCK 25 / 27 VOLTAGE AVAILABLE 120-240V 1ø 2,
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MDG77 Specifications ______________________________________________________________ 113430-3 Telephone: (641) 787-7000 13
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Installation Procedures _______________ Unpacking/Setting Up _________________ Installation should be performed by competent professional Remove protective shipping material (i.e., plastic wrap and in accordance with local, state, and country codes. In the optional shipping box) from the dryer. absence of these codes, the installation must conform to Important applicable American National Standards: ANSI Z223.1-LATEST EDITION (National Fuel Gas Code) or ANSI/NFPA NO. 70- Dryer must be transport
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Domestic Type I (MDG31, MDG51 Only) A = 10-inches (25.4 cm) B = 11-inches (27.94 cm) EXAMPLE: For a bank of 4 MDG31 dryers, 2 unrestricted openings measuring 10-inches by 11-inches (25.4 cm by A = 6-inches (15.24 cm) B = 24-inches (60.96 cm) 27.94 cm) are acceptable. EXAMPLE: For MDG51, 2 unrestricted openings measuring Important 6-inches by 24-inches (15.24 cm by 60.96 cm) are acceptable. Make-up air must be free of dry cleaning solvent If a closet door is installed: unobstructed air openings a
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Important Vertical Venting Exhaust back pressure measured by a When vertical dryer venting is used, the length of the ductwork ! manometer/magnehelic in the exhaust duct must from the dryer to the outside exhaust outlet, must not exceed be no less than 0 and must not exceed 0.6 in WC (1.48 12 feet (3.66 meters). The minimum diameter of this ductwork mb). must be at least 4-inches (10.16 cm) for XXXX, 6-inches (15.24 cm) for MDG31, and 8-inches (20.32 cm) for MDG51 Note and MDG77. Including
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Important Electrical Information _________________ No more than 4 dryers should be connected to 1 ! Electrical Requirements main common duct. All electrical connections must be made by a properly licensed and competent electrician. This is to ensure that the electrical The illustration below shows the minimum cross-sectional installation is adequate and conforms to local, state, and area for multiple dryer round or square venting. These figures national regulations or codes of the country of o
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Warning (Gas Models Only) Dryers built for use with a voltage between 200 ! and 240 must verify the input voltage during installation. If the nominal voltage is outside of the medium tolerances shown on the diagram below, adjust the autotransformer, located near the burner assembly. To adjust the autotransformer wiring, place the red wire on the appropriate tap (HIGH, MED, LOW) of the autotransformer. For additional wiring details, refer to the electrical diagram located on the inside of the c
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Grounding Gas and Steam Models Only A ground (earth) connection must be provided and installed 120-240V Application with Neutral in accordance with local, state, and national regulations or codes of the country of origin. 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
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Important For ease of service, the individual gas supply line ! of each dryer must have its own manual shutoff valve. The dryer and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa) for non-CE dryers or 50 mb for CE dryers. Failure to isolate or disconnect the dryer from supply as noted can cause irreparable damage to the gas valve, voiding the warranty. Note The dryer m
