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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 ut
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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 Safety Precautions ................................4 supply and the gas supply before any covers or guards are removed from the machine to allow MDG31 Specifications...........................6 access for cleaning, adjusting, installation, or testing of any equipment per OSHA standards. MDG51 Specifications...........................8 Please observe all safety precautions displayed MDG77 Specifications.............
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A program should be established for the inspection and Safety Precautions ____________________ cleaning of lint in the burner area, exhaust ductwork, and Warning area around the back of the dryer. The frequency of inspection and cleaning can best be determined from experience at For your safety, the information in this manual ! each location. must be followed to minimize the risk of fire or explosion and to prevent property damage, personal injury, Warning or loss of life. The collection of lin
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Warning NOTES ____________________________________ To reduce the risk of personal injury, install ! lockable doors to prevent public access to the rear ___________________________________________ of the dryers. ___________________________________________ Exhaust duct outlet should be checked periodically for blockages, and if any found, removed. ___________________________________________ Important ___________________________________________ A means of restraint must be used to prevent ! strai
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MDG31 Specifications ________________________________________________________________ MAXIMUM CAPACITY (DRY WEIGHT) 30 lb 13.61 kg 76.20 cm TUMBLER DIAMETER 30” 68.58 cm TUMBLER DEPTH 27” 312.62 L TUMBLER VOLUME 11.04 cu ft 0.18 kW TUMBLER/DRIVE MOTOR 1/4 hp 0.37 kW BLOWER/FAN MOTOR 1/2 hp 49.23 cm DOOR OPENING (DIAMETER) 19-3/8” 37.78 cm DOOR SILL HEIGHT 14-7/8” WATER CONNECTION N / A DRYERS PER 20’/40’ CONTAINER 12 / 28 DRYERS PER 48’/53’ TRUCK 34 / 38 VOLTAGE AVAILABLE 120V 1ø 2w 60
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MDG31 Specifications ________________________________________________________________ 113430-9 Telephone: (641) 787-7000 7
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MDG51 Specifications _________________________________________________________________ MAXIMUM CAPACITY (DRY WEIGHT) 50 lb 22.68 kg TUMBLER DIAMETER 37” 93.98 cm TUMBLER DEPTH 25-3/4” 65.41 cm 453.64 L TUMBLER VOLUME 16.02 cu ft TUMBLER/DRIVE MOTOR 1 hp 0.75 kW BLOWER/FAN MOTOR 1/2 hp 0.37 kW 69.55 cm DOOR OPENING (DIAMETER) 27-3/8” DOOR SILL HEIGHT 16” 40.64 cm WATER CONNECTION 3/4”-11.5 NH (North America) 3/4” B.S.P.T. (Outside North America) DRYERS PER 20’/40’ CONTAINER 10 / 22 DRYERS PER 48’
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MDG51 Specifications _________________________________________________________________ 113430-9 Telephone: (641) 787-7000 9
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MDG77 Specifications ______________________________________________________________ 34.02 kg MAXIMUM CAPACITY (DRY WEIGHT) 75 lb 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 (North America) 3/4” B.S.P.T. (Outside North America) DRYERS PER 20’/40’ CONTAINER 9 / 20 DRYERS PER 48’/53
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MDG77 Specifications ______________________________________________________________ 113430-9 Telephone: (641) 787-7000 11
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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 27.94 cm) are acceptable. A = 6-inches (15.24 cm) B = 24-inches (60.96 cm) Important EXAMPLE: For MDG51, 2 unrestricted openings measuring Make-up air must be free of dry cleaning solvent ! 6-inches by 24-inches (15.24 cm by 60.96 cm) are acceptable. fumes. Make-up air that is contaminated by dry cleaning
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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 mb). 12 feet (3.66 meters). The minimum diameter of this ductwork must be at least 6-inches (15.24 cm) for MDG31, and 8-inches Note (20.32 cm) for MDG51 and MDG77. Including tumbler/dryer elbow connections o
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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) Grounding Dryers built for use with a voltage between 200 A ground (earth) connection must be provided and installed ! and 240 must verify the input voltage during in accordance with local, state, and national regulations or installation. If the nominal voltage is outside of the codes of the country of origin. In the absence of these codes, medium tolerances shown on the diagram below, adjust grounding must conform to applicable requirements of the the autotransformer
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Important Gas Models Only For ease of service, the individual gas supply line 120-240V Application with Neutral ! 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
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Heat Input/Gas Consumption/Orifice (Injector) Data (For Non-CE [European] Models Only) Gas Specifications for Non-CE Approved Dryers** Nominal Supply Gross Burner Orifice Orifice Size Gas Heating Value Pressure Heat Input Pressure Model (Injector) Type 3 Quantity Btu/ft in WC Btu/hr kW DMS mm in WC 7.0-13.0 16.12 4.089 3.0 Natural 1,000 55,000 20 1 MDG31 *Liquid Propane 2,500 11.0 55,000 16.12 44 2.184 1 10.0 Natural 1,000 7.0-13.0 90,000 26.38 29 3.454 2 3.0 MDG51 *Liquid Propane 2,500 11.0
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Important Piping/Connections Pipe joint compounds that resist the action of ! natural, L.P., and butane gases must be used. MDG31 MDG51 MDG77 Test all connections for leaks by brushing on a soapy water 1/2” 1/2” 1/2” 1/2” solution (liquid detergent works well). CE dryer connections will be B.S.P.T., all others will be N.P.T. Warning There should be a minimum 6-inch (15.24 cm) clearance ! Never test for leaks with a flame!!! between the back guard and the first bend in the gas piping for ease of
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Locate the gas train and disconnect the union, 3 electrical Unregulated Gas Valve plugs, and the gas train mounting screws from the burner. Regulate (govern) gas externally (refer to “Supply Pressure” Carefully slide the gas train out of the gas train enclosure. in chart on page 18) to the correct gas pressure for the gas (The carbon ignitor located at the far end of the gas train is being used. Operate dryer through 1 complete cycle to ensure very fragile.) proper operation. Remove 2 burner tu
