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14

C.  DRYER ENCLOSURE REQUIREMENTS

Even though a 12-inch (30.48 cm) clearance is acceptable, it is recommended that the rear of the dryer be
positioned approximately 2 feet (0.60 meters) from the nearest obstruction (i.e., wall) for ease of installation,
maintenance, and service.  Bulkheads and partitions 

should be

 made from noncombustible materials.  The

clearance between the bulkhead header and the dryer 

must be

 a minimum of 4-inches (10.16 cm) and must not

extend more than 4-inches (10.16 cm) to the rear of the dryer front.  The bulkhead facing 

must not be

 closed

in 

ALL

 the way to the top of the dryer.  A 2-inch (5.08 cm) clearance is required.

NOTE:

Bulkhead facing 

should not be

 installed until after dryer is in place.  Ceiling area

 must be

located a minimum of 12-inches (30.48 cm) above the top of the dryer.

NOTE:

When fire sprinkler systems are located above the dryers, a minimum of 18-inches (45.72 cm)
above the dryer console (module) is suggested.  Dryers may be positioned sidewall to
sidewall, however, 1 or 2-inches (2.54 or 5.08 cm) is suggested between dryers (or wall) for
ease of installation and maintenance.  Allowances 

must be

 made for the opening and closing of

the control and lint doors.

Summary of Contents for MDG-120PVV

Page 1: ...e gas supplier AVERTISSEMENT Assurez vous de bien suivrelesinstructionsdonnéesdanscettenotice pour réduire au minimum le risque d incendie ou d explosion ou pour éviter tout dommage matériel touteblessureoulamort Ne pas entreposer ni utiliser d essence ni d autres vapeurs ou liquides inflammables à proximité de cet appareil ou de tout autre appareil QUEFAIRESIVOUSSENTEZUNEODEUR DEGAZ Ne pas tenter...

Page 2: ...ns colors and material and to change or discontinue models The illustrations included in this manual may not depict your particular dryer exactly Important For your convenience log the following information DATE OFPURCHASE ________________________________ MODEL NO __________________________________________ DEALER SNAME _______________________________________________________________________________...

Page 3: ...PERATION CAUTION DRYERSSHOULDNEVERBELEFTUNATTENDEDWHILEINOPERATION FORYOUR SAFETY DONOTDRYMOPHEADSINTHEDRYER DONOTUSEDRYERINTHEPRESENCEOFDRYCLEANINGFUMES WARNING UNDER NO CIRCUMSTANCES should the dryer door switch lint drawer switch or the heat safety circuits ever be disabled Caution Label all wires prior to disconnection when servicing controls Wiring errors can cause improper operation Attentio...

Page 4: ...included with the dryer WARNING DRYER MUST NEVER BE OPERATEDWITHOUTTHELINTFILTER SCREENIN PLACE EVENIFANEXTERNALLINTCOLLECTIONSYSTEMISUSED Dryer must not be installed or stored in an area where it will be exposed to water or weather The wiring diagram for the dryer is located in the front electrical control box area IMPORTANT Dryer must be installed in a location environment which the ambient temp...

Page 5: ...rEnclosureRequirements 14 D FreshAirSupplyRequirements 15 E ExhaustRequirements 16 F ElectricalInformation 22 G GasInformation 26 H Preparation For Operation 30 I PreoperationalTests 31 J ShutdownInstructions 33 K OperatingInstructions 34 SECTION IV SERVICE PARTS INFORMATION 35 A Service 35 B Parts 35 SECTION V WARRANTY INFORMATION 36 A ReturningWarrantyCards 36 B Warranty 36 SECTION VI ROUTINE MA...

Page 6: ...EDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 43 SECTION X SENSOR ACTIVATED FIRE EXTINGUISHING S A F E SYSTEM 45 Installation 46 SensorActivatedFireExtinguishing S A F E SystemTheoryofOperation 49 SystemReset 49 Non Coin S A F E System Check Procedure 49 SensorActivatedFireExtinguishing S A F E SystemPartsBreakDown 50 ...

Page 7: ...e not damaged in a damaged shipment should be accepted but the number received and the number refused must be noted on the receipt 4 If you determine that the dryer was damaged after the trucker has left your location you should call the delivering carrier s freight terminal immediately and file a claim The freight company considers this concealed damage This type of freight claim is very difficul...

Page 8: ...DO NOT use any phone in your building d Clear the room building or area of ALL occupants e Immediately call your gas supplier from a neighbor s phone Follow the gas supplier s instructions f If you cannot reach your gas supplier call the fire department 4 Installation and service must be performed by a qualified installer service agency or gas supplier 5 Dryer s must be exhausted to the outdoors 6...

Page 9: ...CUMSTANCES should the dryer door switch lint drawer switch or the heat safety circuits ever be disabled WARNING PERSONALINJURYOR FIRE COULD RESULT 10 This dryer is not to be used in the presence of dry cleaning solvents or fumes 11 Remove articles from the dryer as soon as the drying cycle has been completed WARNING Articlesleftinthedryerafterthedryingandcoolingcycleshavebeencompletedcan create a ...

Page 10: ...KET TUMBLER DIAMETER 44 1 2 113 cm BASKET TUMBLER DEPTH 42 1 2 107 9 cm BASKET TUMBLER MOTOR 3 4 hp 0 560 kW BLOWER MOTOR 3 hp 2 238 kW DOOR OPENING DIAMETER 31 3 8 79 7 cm BASKET TUMBLER VOLUME 38 2 cu ft 1 08 cu m AIRFLOW 2 150 cfm 60 88 cmm S A F E WATER CONNECTION 3 4 11 5 NH VOLTAGE AVAILABLE 208 575v 3ø 3 4w 50 60 Hz APPROX WEIGHT UNCRATED 1 349 lbs 611 9 kg APPROX WEIGHT CRATED 1 489 lbs 67...

Page 11: ...7 NOTE Manufacturerreservestherighttomakechangesinspecificationsatanytimewithoutnoticeor obligation Specifications Gas ...

Page 12: ...Illus No Description 1 Microprocessor Control Keyboard touch pad Panel Assembly controls 2 Control top access Door Assembly 3 Main DoorAssembly 4 Lint DoorAssembly 5 Lint Drawer 6 Wire Diagram located behind control door 7 Top Console module Assembly ...

Page 13: ... Assembly 2 Blower Motor Mount Assembly 3 Impellor fan blower Assembly 4 Idler Bearing MountAssembly 5 Basket tumbler Bearing Mount Assembly 6 Electric Service Relay Box 7 Heating Unit 8 Data Label and Installation Label Electric service connections are made in this box ...

Page 14: ...al Installation and Gas Plumbing 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 Thedryermustbeinstalledonnoncombustiblefloorsonly 2 The dryer must not be installed or stored in an area where it will be exposed to water and or weather 3 The dryer is for use in noncombustible l...

Page 15: ...ndled in an upright position atALL times The dryer can be moved to its final location while still attached to the skid or with the skid removed To unskid the dryer locate and remove the four 4 lag bolts securing the base of the dryer to the wooden skid Two 2 are located at the rear base remove the back panel for access and two 2 are located in the bottom of the lint chamber To remove the two 2 lag...

Page 16: ...uts and washers B holding the console module to base 3 Open the control door control panel and disconnect the white 15 pin plug connector C illustration below located in the base of the control box 4 Disconnect white plug connector located outside back side of the control box provides power to heat circuit 5 Lift the console module off the dryer base IMPORTANT The dryer must be transported and han...

Page 17: ...E It is recommended that this joint be taped as well as ALL other duct joints to prevent moistureandlintfromescapingintothe building WARNING An exhaust duct transition piece is shipped inside of the dryer s tumbler and must be installed on the dryer s exhaust duct with the hardware provided BEFORE location venting is connected to the dryer THIS EXHAUST DUCT TRANSITION PIECE MUST BE INSTALLED FIRST...

Page 18: ...the rear of the dryer front The bulkhead facing must not be closed in ALL the way to the top of the dryer A 2 inch 5 08 cm clearance is required NOTE Bulkhead facing should not be installed until after dryer is in place Ceiling areamust be located a minimum of 12 inches 30 48 cm above the top of the dryer NOTE When fire sprinkler systems are located above the dryers a minimum of 18 inches 45 72 cm...

Page 19: ... the outdoors atmosphere of a minimum of 3 square feet 0 28 square meters is required for each dryer To compensate for the use of registers or louvers used over the openings this make up air area must be increased by approximately thirty three percent 33 Make up air openings should not be located in an area directly near where exhaust vents exit the building It is not necessary to have a separate ...

Page 20: ...uld be laid out in such a way that the ductwork travels as directly as possible to the outdoors with as few turns as possible Single or independent dryer venting is recommended When single dryer venting is used the ductwork from the dryer to the outside exhaust outlet must not exceed 20 feet 6 09 meters In the case of multiple common dryer venting the distance from the last dryer to the outside ex...

Page 21: ... the duct between the duct opening and the nearest obstruction i e roof or ground level IMPORTANT Exhaust back pressure measured by a manometer at the dryer exhaust duct area must be no less than 0 and must not exceed 0 3 inches 0 74 mb of water column W C NOTE When the exhaust ductwork passes through a wall ceiling or roof made of combustible materials the opening must be 2 inches 5 08 cm larger ...

Page 22: ...T Exhaust back pressure measured by a manometer at each basket tumbler exhaust duct area must be no less than 0 and must not exceed 0 3 inches 0 74 mb of water column W C It is suggested that the ductwork from each dryer minimum 14 inches 35 56 cm not exceed 20 feet 6 09 meters with no more than three 3 elbows including dryer connections and outside exhaust outlets If the ductwork exceeds 20 feet ...

Page 23: ...r than the duct all the way around The duct must be centered within this opening a Outside Ductwork Protection 1 To 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 exhaust ductwork travels vertically up through the roof it should be protected from the weather by using a 180 turn to point th...

Page 24: ...ating ventilating andair conditioning HVAC firmshouldbe consultedforproperventinginformation IMPORTANT Exhaust back pressure measured by a manometer at each dryer exhaust duct area must be no less than 0 and must not exceed 0 3 inches 0 74 mb of water column W C The duct should be smooth inside with no projections from sheet metal screws or other obstructions which will collect lint When adding du...

Page 25: ...21 14 35 56 cm Diameter 2 150 cfm 60 88 cmm Exhaust Connection at Common Duct ...

Page 26: ...r CAN CGA B149 2 M91 Liquid Propane L P Gas or LATEST EDITION IMPORTANT Failure to comply with these codes or ordinances and or the requirements stipulated inthismanualcanresultinpersonalinjuryorcomponentfailure NOTE ComponentfailureduetoimproperinstallationwillVOIDTHEWARRANTY Each dryer should be connected to an independently protected branch circuit The dryer must be connected with copper wire o...

Page 27: ...SERVICE SPECIFICATIONS PER DRYER IMPORTANT NOTES A B C 208 VAC AND 230 240 VAC ARE NOT THE SAME When ordering specify exact voltage When fuses are used they must be dual element time delay current limiting class RK1 or RK5 ONLY Calculate determine correct fuse value by applying either local and or National Electrical Codes to listed appliance amp draw data Circuit breakers are thermal magnetic ind...

Page 28: ...ble underwriters laboratory listed cord pigtail wire size must conform to rating of the dryer or the dryer can be hard wired directly to the service breaker In ALL cases a strain relief must be used where the wire s enter the dryer electrical service relay box a Gas Model Dryers These electrical connections are made at the terminal block located in the electric service relay box at the rear upper ...

Page 29: ... rear For added personal safety when possible it is suggested that a separate ground wire sized per local codes be connected from the ground connection of the dryer to a grounded cold water pipe DO NOT ground to a gas or hot water pipe The grounded cold water pipe must have metal to metal connections ALL the way to electrical ground If there are any nonmetallic interruptions such as a meter pump p...

Page 30: ...rreparable damage to the gas valve VOIDINGTHEWARRANTY WARNING FIRE OR EXPLOSION COULD RESULT 1 Gas Supply The gas dryer installation must meet the American National Standard National Fuel Gas Code ANSI Z223 1 LATEST EDITION or in Canada the Canadian Installation Codes CAN CGA B149 1 M91 Natural Gas or CAN CGA B149 2 M91 L P Gas or LATEST EDITION as well as local codes and ordinances and must be do...

Page 31: ...he gas pressure must be regulated upstream of the dryer The pressure measured at each gas valve pressure tap must be a consistent 10 5 inches 26 1 mb water column There is no regulator or regulation 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 Shaded area is sated in metric equivalent Drill Measurem...

Page 32: ...gnitionsystem Consistent gas pressure is essential at ALL gas connections It is recommended that a 1 inch 2 54 cm 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 pressure W C IMPORTANT A water column pressure of 3 5 inches 8 ...

Page 33: ...stem during any pressure testing of that system at test pressures in excess of 1 2 psig 3 5 kPa NOTE Thedryermustbeisolatedfromthegassupplypipingsystembyclosingitsindividualmanual shutoffvalveduringanypressuretestingofthegassupplypipingsystemattestpressuresequal to or less than 1 2 psig 3 5 kPa ...

Page 34: ...MODELS the sail switch damper assembly was installed and adjusted at the factory prior to shipping However each sail switch adjustment must be checked to assure that this important safety control is functioning 5 GAS MODELS be sure that ALL gas shutoff valves are in the open position 6 Be sure ALL back panels guards and electric box covers have been replaced 7 Check ALL service doors to assure tha...

Page 35: ...pening the main door or by pressing the STOP red key To restart the dryer press the START green key or a preprogrammed cycle key i e E NOTE Selection settings changescanbemadeatanytimeduringthedryingcyclebypressingthe STOP red key twice The L E D display will return to REAdY at which time a new cycle selection can be made 2 Check to insure that the basket tumbler starts in the clockwise CW directi...

Page 36: ... 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 heat burner does activate shut the dryer off and make necessary adjustments 5 A reversing basket tumbler dryer should never be operated with less than a 85 lb 38 kg load dry weight The size of the load will affect the coast down and dwell stop times The ba...

Page 37: ... was shipped with the dryer b Dual Timer Dryers Check 1 Heating Timer 2 Cool Down Timer 3 Temperature Selection Functions J SHUTDOWN INSTRUCTIONS If 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 either at the external disconnect switch or the circuit breaker 2 Discontinue the gas or steam supply a GAS MODELS d...

Page 38: ...ed drying cycles A through F have been stored in the microprocessor controller s computer s memory RefertotheProgrammingManualsuppliedwiththedryer formorespecificoperatinginstructions NOTE The dryer can be stopped at any time by opening the main door or by pressing the STOP red key To restart the dryer press the START green key or a preprogrammed cycle key i e E NOTE Selection settings changescanb...

Page 39: ...ing the Maytag Co be sure to give them the correct model number and serialnumber sothatyourinquiryishandledinanexpeditiousmanner B PARTS 1 Replacement parts should be purchased from the dealer from whom the Maytag equipment was purchased If the Maytag dealer cannot be contacted or is unknown contact the Maytag Co for a dealer in your area NOTE When ordering replacement parts from the Maytag dealer...

Page 40: ...ompleted and returned for each individual dryer NOTE Besuretoincludetheinstallationdatewhenreturningthewarrantycard s B WARRANTY For a copy of the manufacturer s commercial warranty covering your particular dryer s contact the Maytag dealer from whom you purchased the equipment and request a dryer warranty form If the dealer cannot be contacted or is unknown warranty information can be obtained fr...

Page 41: ...ATEAPOTENTIALFIRE HAZARD WARNING KEEPDRYERAREACLEAR AND FREE FROM COMBUSTIBLE MATERIALS GASOLINE AND OTHER FLAMMABLE VAPORS AND LIQUIDS NOTE Suggested time intervals shown are for average usage which is considered six 6 to eight 8 operational running hoursperday IMPORTANT Dryer produces combustible lint and must be exhausted to the outdoors Every 6 months inspecttheexhaustductingandremoveanylintbu...

Page 42: ...mpellor fan belts and drive belts should be examined Cracked and or seriously frayed belts should be replaced Tighten belts when necessary WARNING THEACCUMULATION OF LINT IN THE EXHAUST DUCTWORK CAN CREATEAPOTENTIALFIRE HAZARD WARNING DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR CHECK CUSTOMER FURNISHED BACK DRAFTED DAMPERS IN EXHAUST DUCTWORK INSPECT AND REMOVEANYLINT ACCUMULATION W...

Page 43: ...itch sail switch burner and hi limit thermostats C LUBRICATION The motor bearings and under normal most conditions the basket tumbler and idler bearings are permanently lubricated It is physically possible to relubricate the basket tumbler and idler bearings if you choose to do so even though this practice is not necessary Use ShellAlvania 2 or its equivalent The basket tumbler and idler bearings ...

Page 44: ...ng Maytag certain information is required to insure proper service parts information from Maytag This information is on the data label affixed to the left side panel wall area behind the control door When contacting Maytag please have the model number and serial number available ...

Page 45: ... on your particular model 4 TYPE OF HEAT This describes the type of heat for your particular dryer gas either natural gas or liquid propane L P gas electric or steam 5 HEAT INPUT for GAS DRYERS This describes the heat input in British Thermal Units per Hour Btu hr 6 ORIFICE SIZE for GAS DRYERS Gives the number drill size used 7 ELECTRIC SERVICE This describes the electric service for your particul...

Page 46: ...ea of the dryer Both the dwell stop time and basket tumbler spin time are adjustable by mode selection switches located on the electronic timer refer to the illustration below SPIN TIME Adjustment Position Number 1 2 3 4 5 Time in Seconds 30 60 90 120 150 DWELL STOP TIME Adjustment Position Number 1 2 3 4 5 Time in Seconds 5 6 3 7 6 8 9 10 2 Values shown are 1 second ...

Page 47: ... installation of the replacement microprocessor controller computer board reestablish power to the dryer b Start the drying cycle by pressing any of the preset cycles in letters A F c Verify that the applicable indicator lights on the back side of the microprocessor controller computer board are lit Refer to the illustration below ...

Page 48: ... call for heat The DSI module will LOCKOUT if the gas burner flame is not sensed at the end of the trial for ignition period The trial for ignition period will be repeated for a total of three 3 retries trials the initial try and two 2 more retries trials If the flame is not sensed at the end of the third retry trial inter purge period of 30 seconds the DSI module will LOCKOUT L E D flashes A stea...

Page 49: ...ionremainsorreignites While the water jet s are activated the basket tumbler will jog to move the water throughout the load The microprocessor will display that the system was activated and will continue to display until the dryer is attended to We have tried to make this manual as complete as possible and hope you will find it useful ADC reserves the right to make changes from time to time withou...

Page 50: ... system must be supplied with a minimum water pipe size of 1 2 and be provided with 40 psi 20 psi 2 75 bar 1 37 bar of pressure For use of optional manual bypass a second source with the same piping and pressure requirements is required Flexible 1 2 feeds must be provided to avoid damage to electric water solenoid valve by vibration IMPORTANT Flexiblesupplyline couplingmustbeused Solenoidvalvefail...

Page 51: ...ine coupling must be used in an effort to avoid damaging the electric water solenoid valve NOTE The 3 4 11 5 NH is a standard hose coupling screw thread It is not to be confused with 3 4 N P T The sealing of an NH connection is made with a washer opposed to the mating threads of an N P T assembly The two 2 thread designs are not compatible IMPORTANT Flexiblesupplyline couplingmustbeused Solenoidva...

Page 52: ...ar area of the dryer or the water supply is located in an area where it will be exposed to cold freezing temperatures provisions must be made to protect these water lines from freezing WARNING If the water in the supply line or water solenoid valve freezes the S A F E system will be INOPERATIVE The manual ball cock shutoff valve must be located outside of the dryer at a distance from the dryer whe...

Page 53: ...ve trip point if so water will remain on The control will continue to check if temperature is above trip point every 30 seconds If the water has been on for a constant 10 minutes the water will be turned off regardless of the temperature If the temperature has dropped below trip point the control will turn off the water prior to 10 minutes SYSTEM RESET After the microprocessor determines that the ...

Page 54: ... thoroughly before ordering We have tried to make this manual as complete as possible and hope you will find it useful ADC reserves the right to make changes from time to time without notice or obligation in prices specifications colors and material and to change or discontinue models Illus No Part No Qty Description 1 165114 1 S A F E System Solenoid Valve 24V 50 60 Hz 2 143220 1 3 8 F P T Brass ...

Page 55: ...2752 1 S A F E System Temperature Probe Assembly includes illus nos 1 through 5 2 154007 2 Push On Fastener 3 390390 1 Sensor Bracket ONLY 4 150301 2 8 18 x 7 16 Phillips Pan Head TEK Screw 5 122647 1 Connector ONLY does not include terminals ...

Page 56: ...Maytag113395 1 01 06 03 25 2 09 03 03 25 ...

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