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11

E.  EXHAUST REQUIREMENTS

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, and shutdown of the

burner by the airflow (sail) switch, burner hi-limits, or lint chamber hi-limit protector thermostat.  The dryer 

must

be

 installed with a proper exhaust duct connection to the outside.

When possible, it is suggested to provide a separate (single) exhaust duct for each dryer.

CAUTION:

This dryer produces combustible lint and 

must be

 exhausted to the outdoors.

CAUTION: IMPROPERLY

 

SIZED

 

OR

 

INSTALLED

 

EXHAUST

 

DUCTWORK

 

CAN

CREATE

 

A

 

POTENTIAL

 

FIRE

 

HAZARD.

The exhaust ductwork 

should be

 laid out in such a way that the ductwork travels as directly as possible to the

outdoors with as few turns as possible.  The shape of the ductwork is not critical as long as the minimum cross

section area is provided.  Single or independent dryer venting is recommended.

It is suggested that the use of 90° turns be avoided; use 30° or 45° angles instead.

The ductwork 

should be

 smooth inside with no projections from sheet metal screws or other obstructions,

which 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 building.  Additionally,

inspection doors

 should be

 installed at strategic points in the exhaust ductwork for periodic inspection and

cleaning.

IMPORTANT:

When connecting ductwork to the dryer exhaust duct, be sure that when screws are

used they 

DO NOT

 restrict the operation (both opening and closing) of the damper.

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 than the duct (all the way around).

The duct 

must be

 centered within this opening.

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 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 either case, allow at least

twice the diameter of the duct between the duct opening and the nearest obstruction (i.e., roof or ground level).

IMPORTANT:

DO NOT

 use screens, louvers, or caps on the outside opening of the exhaust

ductwork.

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.).

IMPORTANT: It is recommended

 that exhaust or booster fans not be used in the exhaust ductwork

system.

Содержание MDG50PNH

Страница 1: ...l thefiredepartment Installation and service must be performed by a qualified installer service agency or the gas supplier AVERTISSEMENT Assurez vous de bien suivrelesinstructionsdonn esdanscettenotic...

Страница 2: ...inflammables proximit decet appareil ou de tout autre appareil We have tried to make this manual as complete as possible and hope you will find it useful The manufacturer reserves the right to make c...

Страница 3: ...tion WARNING UNDER NO CIRCUMSTANCES should the dryer door switch lint drawer switch or heat safety circuit ever be disabled IMPORTANT YOUMUSTDISCONNECTANDLOCKOUTTHEELECTRICSUPPLYANDTHEGAS SUPPLY BEFOR...

Страница 4: ...cluded with the dryer WARNING DRYER MUST NEVER BE OPERATEDWITHOUTTHE LINTFILTER SCREEN IN PLACE EVENIFANEXTERNALLINTCOLLECTIONSYSTEMISUSED Dryer must not be installed or stored in an area where it wil...

Страница 5: ...equirements 9 D FreshAirSupplyRequirements 10 E ExhaustRequirements 11 F ElectricalInformation 17 G GasInformation 20 H Preparation For Operation Start Up 24 I PreoperationalTests 25 J PreoperationalI...

Страница 6: ...ubrication 31 D LintDrawerRemoval 32 SECTION VII DATA LABEL INFORMATION 33 SECTION VIII PROCEDURE FOR FUNCTIONAL CHECK OF REPLACEMENT COMPONENTS 35 SECTION IX MANUAL RESET BURNER HI LIMIT INSTRUCTIONS...

Страница 7: ...ch c 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 y...

Страница 8: ...or switch lint drawer switch or heat safety circuit ever be disabled WARNING PERSONALINJURYOR FIRE COULD RESULT should the dryer door switch lint drawer switch or heat safety circuit ever be disabled...

Страница 9: ...Manufacturerreservestherighttomakechangesinspecificationsatanytimewithoutnoticeor obligation 0 080 3 7 5 7 OEV NJ 6 7 780 5 0 7 5 FP 6 7 780 5 37 FP 6 7 780 5 02725 KS N 225 23 1 1 0 7 5 FP 6 7 780 5...

Страница 10: ...6 NOTE Manufacturerreservestherighttomakechangesinspecificationsatanytimewithoutnoticeor obligation Specifications...

Страница 11: ...er IMPORTANT Dryer must be transported and handled 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 t...

Страница 12: ...Requirements in Section D 5 Clearance provisions must be made from noncombustible construction as noted in this manual refer to Dryer Enclosure Requirements in Section C 6 Provisions must be made for...

Страница 13: ...d for ease of maintenance 1 inch 2 54 cm maximum for electric dryers A minimum of 12 inches 30 48 cm above the dryer s outer top except along the front of the dryer which may be closed if desired NOTE...

Страница 14: ...ributed equally to the dryers The dryer must be installed with provisions for adequate combustion and make up air supply EXAMPLE For a bank of eight 8 dryers two 2 unrestricted openings measuring 3 fe...

Страница 15: ...t to which it is connected ALL ductwork joints must be taped to prevent moisture and lint from escaping into the building Additionally inspection doors should be installed at strategic points in the e...

Страница 16: ...over 20 feet 6 1 meters a minimum size of 10 inches 25 4 cm must be used HORIZONTAL VENTING When a single 8 inch 20 32 cm horizontal vent is used the ductwork to the outlet cannot exceed 20 feet 6 1 m...

Страница 17: ...elbows used exceeds the above noted specifications the cross sectional area of the ductwork must be increased in proportion to the number of elbows or duct run added IMPORTANT For extended ductwork r...

Страница 18: ...s being connected to the main common duct must be a minimumof34 1 4 87cm dryerwidth Ductwork should be laid out in such a manner where allowances are made at rear area of the dryer for removal of rear...

Страница 19: ...15 HORIZONTAL VENTING Illus C VERTICAL VENTING Illus D...

Страница 20: ...he ductwork for periodic inspection and cleaning 9 Whenever the ductwork passes through combustible materials the opening must be 2 inches 5 08 cm larger than the duct all the way around The duct must...

Страница 21: ...cted branch circuit The dryer must be connected with copper wire only DO NOT use aluminum wire which could cause a fire hazard The copper conductor wire cable must be of proper ampacity and insulation...

Страница 22: ...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 are any nonmetallic interruptions suc...

Страница 23: ...oth cases a strain relief must be installed where the wiring enters the dryer IMPORTANT Aseparate protected circuit must be provided to each dryer Single Phase 1 Wiring Connections Hookup The electric...

Страница 24: ...ed can cause irreparable damage to the gas valve which will VOIDTHEWARRANTY WARNING FIRE OR EXPLOSION COULD RESULTdue to failure of isolating or disconnecting the gas supply as noted 1 Gas Supply The...

Страница 25: ...the gas valve s internal pressure regulator blocked open so that the gas pressure must be regulated upstream of the dryer The pressure measured at each gas valve pressure tap must be a consistent 10 5...

Страница 26: ...pliance Btus being supplied The dryer is provided with a 1 2 N P T inlet pipe connection extending out the back area of the burner box The minimum pipe size supply line to the dryer is 1 2 pipe For ea...

Страница 27: ...operation A 1 8 N P T plugged tap accessible for a test gauge connection must be installed in the main gas supply line immediately upstream of each dryer IMPORTANT Pipe joint compounds that resist th...

Страница 28: ...ted at the factory prior to shipping However each sail switch adjustment must be checked to ensure that this important safety control is functioning 5 Check bolts nuts screws terminals and fittings fo...

Страница 29: ...e ignitions total of three 3 ignition attempts If there is no flame after the third ignitionattemptthemodulewilllockoutuntilitismanuallyreset Toresettheignitionsystem open and close the main door and...

Страница 30: ...in progress 2 Press the letter on the keyboard touch pad corresponding to the cycle desired i e key E to start rotate the dryer 3 L E D display will now show Cycle In Progress and Cycle Status meanin...

Страница 31: ...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...

Страница 32: ...acting the Maytag Co be sure to give them the correct model number and serialnumber sothatyourinquiryishandledinanexpeditiousmanner B PARTS Replacement parts should be purchased from the dealer from w...

Страница 33: ...pleted and returned for each individual dryer NOTE Besuretoincludetheinstallationdatewhenreturningthewarrantycard s B WARRANTY For a copy of the manufacturer s commercial warranty covering your partic...

Страница 34: ...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 exhaust...

Страница 35: ...ng connections and nonpermanent gas connections unions shutoff valves and orifices Motor and drive belts should be examined Cracked or seriously frayed belts should be replaced Tighten loose V belts w...

Страница 36: ...r pull drawer out approximately halfway Rotate move lint drawer stop hinge refer to the illustration below downward and pull the drawer out IMPORTANT After replacing the lint drawer back into the drye...

Страница 37: ...tain information is required to ensure 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 the...

Страница 38: ...h describes ALL possible options 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...

Страница 39: ...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...

Страница 40: ...tion No L E D indicator indicates a power or an internal failure has occurred 3 For Models with Fenwal Controls DSI Module 128937 Theory of Operation Start the drying cycle When the gas burner ignites...

Страница 41: ...re has dropped below 100 F 38 C The clear stop button on the Phase 7 keyboard touch pad must be pressed to clear the error condition The open burner hi limit must be reset manually prior to the start...

Страница 42: ...onremainsorreignites While the water jet s are activated the basket tumbler will jog to move the water throughout theload Themicroprocessorwilldisplaythatthesystemwasactivatedandwillcontinue to displa...

Страница 43: ...e 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 re...

Страница 44: ...e 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 seali...

Страница 45: ...r 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...

Страница 46: ...of the temperature and the control will display S A F E SYSTEM WAS ACTIVATED If the temperature has dropped below trip point the control will turn off the water prior to 10 minutes SYSTEM RESET After...

Страница 47: ...corrected the control will continue to monitor the condition for 1 minute before exiting S A F E SYSTEM DISABLED mode SHORTED WATER VALVE This message indicates that the water valve is shorted or tha...

Страница 48: ...Maytag113308 4 02 02 04 150...

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