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MDG-50

Installation Manual

For replacement parts, contact the distributor from which the dryer

was purchased or contact:

Maytag Co.

403 West Fourth St North

Newton, Iowa 50208

(515) 787-7000

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
vapor and liquids in the vicinity of this or any
other appliance.

WHAT DO YOU DO IF YOU SMELL GAS

* Do not try to light any appliance.
* Do not touch any electrical switch; do not use

any phone in your building.

* Clear the room, building or area of all

occupants.

* Immediately call your gas supplier from a

neighbor's phone.  Follow the gas supplier's
instructions.

* If you cannot reach your gas supplier, call the

fire department.

Installation and service must be performed by a
qualified installer, service agency or the gas
supplier.

AVERTISSEMENT:  Assurez-vous de bien
suivre les instructions données  dans cette
notice pour réduire au minimum  le risque
d’incendie ou d’explosion ou pour éviter tout
dommage matériel, toute blessure ou la mort.

Ne pas entreposer  ni utiliser d’essence ni
d’autres vapeurs ou liquides inflammables dans
le voisinage  de cet appareil ou de tout autre
appareil.

QUE FAIRE SI VOUS SENTEZ UNE ODEUR
DE GAZ:

* Ne pas tenter  d’allumer  d’appareil.
* Ne touchez à aucun interrupteur.  Ne pas

vous servir des téléphones se trouvant dans
le bâtiment où vous vous trouvez.

* Évacuez la pièce, le bâtiment ou la zone.
* Appelez immédiatement votre fournisseur de

gaz depuis un voisin.  Suivez les instructions
du fournisseur.

* Si vous ne pouvez rejoindre le fournisseur

de gaz, appelez  le  service des incendies.

L’installation et l’entretien doivent être assurés
par un installateur ou un service d’entretien
qualifié ou par le fournisseur de gaz.

122298SL/cj

Part No. 113067

Summary of Contents for MDG-50

Page 1: ...ation and service must be performed by a qualified installer service agency or the gas supplier AVERTISSEMENT Assurez vous de bien suivre les instructions donn es dans cette notice pour r duire au min...

Page 2: ...luded with the dryer The following FOR YOUR SAFETY caution must be posted near the dryer in a prominent location FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors or liquids in th...

Page 3: ...RS IN OPERATION DRYERS SHOULD NEVER BE LEFT UNATTENDED WHILE IN OPERATION CAUTION FOR YOUR SAFETY DO NOT DRY MOP HEADS IN THE DRYER DO NOT USE DRYER IN THE PRESENCE OF DRY CLEANING FUMES WARNING UNDER...

Page 4: ...yed on the equipment and or specified in the installation manual included with the dryer WARNING DRYER MUST NEVER BE OPERATED WITHOUT THE LINT FILTER SCREEN IN PLACE EVEN IF AN EXTERNAL LINT COLLECTIO...

Page 5: ...tion Requirements 9 C Dryer Enclosure Requirements 10 D Fresh Air Supply Requirements 11 E Exhaust Requirements 12 F Electrical Information 18 G Gas Information 23 H Preparation For Operation and Star...

Page 6: ...36 SECTION VII TROUBLESHOOTING 37 Microprocessor Controller Computer Models 37 Dual Timer Models 42 SECTION VIII DATA LABEL INFORMATION 45 A Data Label 45 SECTION IX REVERSING TIMER SPIN DWELL ADJUST...

Page 7: ...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 carrie...

Page 8: ...ht any appliance b DO NOT touch any electrical switch c DO NOT use any phone in your building d Clear the room building or area of ALLoccupants e Immediately call your gas supplier from a neighbor s p...

Page 9: ...rical Codes Parts 1 2 CSA C22 1 1990 or LATEST EDITION NOTE Failure to do so will VOID THE WARRANTY 9 UNDER NO CIRCUMSTANCES should the dryer door switches lint drawer switch or heat safety circuit ev...

Page 10: ...gation MAXIMUM CAPACITY DRY WEIGHT 50 lbs 22 7 kg BASKET TUMBLER DIAMETER 32 3 4 83 2 cm BASKET TUMBLER DEPTH 37 1 2 95 3 cm BASKET TUMBLER MOTOR 3 4 HP 0 560 kw DOOR OPENING DIAMETER 21 1 2 54 61 cm...

Page 11: ...7 NOTE Manufacturer reserves the right to make changes in specifications at any time without notice or obligation Specifications MDG 50...

Page 12: ...is provided and master key for both the control door and lint door should be made accessible because it will be needed throughout various phases in the installation of the dryer The dryer can be moved...

Page 13: ...ible locations 4 Provisions for adequate air supply must be provided as noted in this manual refer to Fresh Air Supply Requirements in Section D 5 Clearance provisions must be made from combustible co...

Page 14: ...important for proper and efficient operation Dryers may be positioned sidewall to sidewall However a 1 16 minimum allowancemust be made for opening and closing of the control door and the lint door I...

Page 15: ...alled with provisions for adequate combustion and make up air supply The dryer must be installed with provisions for adequate combustion and make up air supply EXAMPLE For a bank of eight 8 dryers 12...

Page 16: ...h will collect lint When adding ducts the ducts to be added should overlap the duct to which it is connected ALL ductwork joints must be taped to prevent moisture and lint from escaping into the build...

Page 17: ...es must be used HORIZONTAL VENTING When horizontal single 8 inch venting is used the ductwork to the outlet cannot exceed 30 feet refer to Illus A below This calculation of 30 feet compensates or allo...

Page 18: ...an only be increased to an extent For extended ductwork runs a professional heating venting and air conditioning HVAC firm should be consulted for proper venting information VERTICAL VENTING When vert...

Page 19: ...e 1 main common duct with a vertical run NOTE Distance between dryer single ducts being connected to the main common duct must be a minimum of 34 1 4 dryer width Ductwork should be laid out in such a...

Page 20: ...16 MAN4218 HORIZONTAL VENTING ILLUS C VERTICAL VENTING ILLUS D MAN4230...

Page 21: ...cleaning 9 Wherever the ductwork passes through combustible materials the opening must be 2 inches larger than the duct all the way around The duct must be centered within this opening 10 The outside...

Page 22: ...ted branch circuit IMPORTANT USE ONLY COPPER CONDUCTOR CABLE of proper ampacity and insulation in accordance with electric codes for making service connections NOTE The use of aluminum wire will VOID...

Page 23: ...the dryer to a grounded cold water pipe DO NOT ground to a gas pipe or hot water pipe The grounded cold water pipe must have metal to metal connection ALL the way to the electrical ground If there ar...

Page 24: ...ord or 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 th...

Page 25: ...ectrical input connections to the dryer are the 3 phase 3 power leads L1 L2 L3 and sometimes Neutral and ground Single phase 1 power for the control circuit is done internally to the dryer No single p...

Page 26: ...in specifications at any time without notice or obligation MDG 50 GAS ELECTRICAL SERVICE SPECIFICATIONS PER DRYER IMPORTANT 208 VAC AND 230 240 VAC ARE NOT THE SAME When ordering specify exact voltage...

Page 27: ...ause irreparable damage to the gas valve which will VOID THE WARRANTY WARNING FIRE OR EXPLOSION COULD RESULT 1 Gas Supply The gas dryer installation must meet the American National Standard National F...

Page 28: ...e pressure measured at each gas valve pressure tap must be a consistent 10 5 inches water column W C There is no regulator or regulation provided in an L P dryer The water column pressure must be regu...

Page 29: ...ed The dryer is provided with a 1 2 inch N P T inlet pipe connection located at the upper rear area of the dryer The minimum pipe size supply line to the dryer is 1 2 inch N P T For ease in servicing...

Page 30: ...ANT Pipe joint compounds that resist the action of natural gas and L P gas must be used IMPORTANT Test ALL connections for leaks by brushing on a soapy water solution liquid detergent works well WARNI...

Page 31: ...ach sail switch adjustment must be checked to assure that this important safety control is functioning 5 Check bolts nuts screws terminals and fittings for tightness 6 Be sure that ALL gas shutoff val...

Page 32: ...stablished after one 1 time the heat circuit in the DSI module will lockout until it is manually reset To reset the DSI system open and close the main door and restart the dryer a A gas pressure test...

Page 33: ...r and fan is rotating in the wrong direction this will not only drastically reduce drying efficiency but it can also cause premature component failure J PREOPERATIONAL INSTRUCTIONS COIN MODELS 1 Autom...

Page 34: ...ying and cooling cycles showing time counting downward IMPORTANT If the door is opened during a cycle both the heat and motor will stop However the microprocessor controller computer will continue to...

Page 35: ...E at which time the dryer will shut off NOTES 1 If the anti wrinkle program is active the L E D display will continue to read donE and the microprocessor controller computer will proceed through the a...

Page 36: ...h To Start switch 4 To stop dryer open the main door K SHUT DOWN INSTRUCTIONS If the dryer is to be shut down taken out of service for a period of time the following must be performed 1 Discontinue po...

Page 37: ...tag Company Service Department be sure to give them the correct model and serial numberso that your inquiry is handled in an expeditious manner B PARTS 1 Replacement parts should be purchased from the...

Page 38: ...mer as a record installation date of that specific dryer so as to extend the customer s warranty period IMPORTANT A separate warranty card must be completed and returned for each individual dryer NOTE...

Page 39: ...MMABLE VAPORS AND LIQUIDS NOTE Suggested time intervals shown are for average usage which is considered six 6 to eight 8 operational running hours per day IMPORTANT Dryer produces combustible lint and...

Page 40: ...ect bolts nuts screws bearing setscrews grounding connections and nonpermanent gas connections unions shutoff valves and orifices Motor and drive belts should be examined Cracked or seriously frayed b...

Page 41: ...o the factory The information provided should not be misconstrued as a handbook for use by an untrained person making repairs IMPORTANT When replacing blown fuses the replacement must be of the exact...

Page 42: ...struction e Failed idler bearings or basket tumbler bearings E Blower motor is not operating does not start 1 Failed blower motor contactor relay 2 Failed arc suppressor A S board for Reversing Models...

Page 43: ...controller computer c Broken wire or connection somewhere between the microprocessor controller computer and the microprocessor temperature sensor J Microprocessor controller computer display reads d...

Page 44: ...ntroller computer O Gas heating unit is not operating no heat no spark at burner area when dryer is first started and heat indicator is on 1 Fault in sail switch circuit a Sail switch is out of adjust...

Page 45: ...ned on regular basis 7 Extractors washers are not performing properly 8 Sail switch is fluttering restriction in exhaust ductwork 9 Failed microprocessor controller computer temperature calibration is...

Page 46: ...rt 6 Loose motor mount 7 Failed idler or basket tumbler bearings 8 V belts either too tight or too loose U Main burners are burning with a yellow flame 1 Burner air shutters are out of adjustment 2 In...

Page 47: ...y stops and restarts in same direction for Reversing Models ONLY 1 Failed reversing contactor relay 2 Failed reversing timer F Heating unit is not operating ALL temperature selections 1 Fault in sail...

Page 48: ...erforming properly 7 Low or inconsistent gas pressure 8 Gas supply may have low heating value 9 Sail switch is fluttering a Restriction in location exhaust system 10 Exceptional cold or humidity or lo...

Page 49: ...information from manufacturer This information is on the data label that is affixed to the left side panel area behind the top control access door When contacting manufacturer please have the modelan...

Page 50: ...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 or steam 5 HEAT INPUT for GAS DRYERS This describes t...

Page 51: ...area of the dryer Both the dwell stop time and basket tumbler spin time are adjustable by mode selection switches located on the electronic timer as noted in the illustration below TIMING LEGEND SPIN...

Page 52: ...uter board reestablish power to the dryer b Start the drying cycle c Verify that the motors and the heat indicator dots in the microprocessor controller computer light emitting diode L E D display are...

Page 53: ...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 a...

Page 54: ...conds The burner flame should now be established e With the burner flame on remove the flame sensor wire from the FS terminal of the DSI module f Theburnerflamemustshutoffandtheignition module must lo...

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