Norcold MRFT15 Montageanleitung

DUAL VOLTAGE REFRIGERATORS

120 VOLTS AC AND 12/24 VOLTS DC

MRFT15

MRFT40

MRFT60

INSTALLATION AND OWNER’S

MANUAL

Service Information

Ifserviceorpartsarerequired,contactthenearestNorcoldServiceCenter. Tofindan

authorizedNorcoldServiceCenternear you,pleasetelephone theNorcoldCustomer

SupportDept.at 800-543-1219 (option-1) or visit our web site at www.norcold.com.

NorcoldCustomer Support Dept.

Telephone: 800-543-1219

Fax: 937-497-3183

WebSite: www.norcold.com

ModelNo. Serial No.

PrintedinJapan

11/03

PartNo.622732B

PartNo.54903122000

NORCOLD AC/DC Models - Two Year Limited Warranty Policy

Norcold,Inc. warrantsthat when properly installedandplacedunder normal service and use its

refrigerationequipment is free from defectsinmaterial and workmanship for twoyearscom-

mencingfrom the original date ofpurchaseofthe new equipment.

Limitations of Warranty

1. This Warrantyis theonlywarranty for a NorcoldAC/DCrefrigerator. This Warranty does not

extendto glassware, electriclightbulbs, and replaceablefuses.

2. Thiswarranty does not apply to partsandassemblies that have been subjected to misuse,

improperinstallation,abnormal service,transitdamage, recharging ofcoolingsystem,

accident,fire, improper repair,tamperingorabuse.

3. Irrespectiveofthe nature of the warranty protection offeredor claimed, theperiodofwarranty

shallin no case extend beyond twoyearscommencingfromthe original date of purchase of

thenew equipment.

Limitation of Remedy

1.The responsibility of NORCOLD under this or any warranty is limited to the repairor replace-

ment(at NORCOLD’S option) of the defective partorassembly.

2. Innoeventand under no circumstancesshall NORCOLD be responsible under this Limited

Warranty for any other charge whatsoever, including but not limited to charges or claimsfor

labor,lost business, lost time, lostprofits,loss of use, or any kind of incidentalor consequen-

tialdamages, however denominatedordescribed. Theremedy under thiswarrantyislimited

torepair orreplacement.

3. Somestatesdo not allowtheexclusionor limitationof incidentalorconsequential damages,

sothe above exclusionmaynotapply to you.

Disclaimer of Other Warranties

ThisWarranty is expresslyinlieuofallotherwarrantieseither expressed or implied. All other

warranties,expressed or implied, includinganywarrantyof merchantability orfitnessfora

particularpurpose,arehereby disclaimedandexcluded.

Legal Rights

ThisWarranty gives you specific legal rights,and you may have otherlegalrightswhichvary

fromstateto state.

Safety Awareness

Readthis manual carefullyandunderstandthe contentsbeforeyouinstallthe refrigerator.

Beaware of possible safety hazards whenyouseethe safetyalert symbol on the refrigerator

andinthismanual. Asignalword follows the safety alert symbol and identifies the danger of the

hazard. Carefully read thedescriptionsofthesesignalwordstofully know their meanings. They

areforyour safety.

WARNING: Thissignalwordmeans a hazard, which if ignored, can causedangerous

personalinjury, death, or muchpropertydamage.

CAUTION: Thissignalwordmeansahazard,whichifignored,cancausesmall

personalinjury or muchpropertydamage.

Model No. and Serial No.

Themodel and serial number are on a labelwhichisonthecompressor cover near the

portablehandleandon the coverofthismanual.

General

Therefrigerator should be placed on a level and solidsurface. Thecompressorhasshock

mountsto allowtherefrigeratoroperation during transit.

Besuretherefrigeratorisnotin direct sunlight or near a gas stove, a heater,orotherheat-

generatingappliances. Avoidplacingyourrefrigerator in an areawhereitcould be acciden-

tallysplashed or sprayed with water whichcouldentertheelectrical compartmentof the

refrigerator.

Your refrigerator was thoroughlycleanedbeforeshipment from the factory. Itis advisable,

however,to clean the interior once more before using. Wipe the interior with a cloth and

warmwater. Then wipe with a dry cloth.

Operation

Thisrefrigeratoroperatesoneither 120 volts (60 hertz)ACcurrent from a standardwall

receptacleor12/24 voltsDC currentfroma battery in your car,boat,trailer, camper, etc. If both

powersupplies are available, the refrigerator will select andoperateon ACvoltage. Ifthe AC

powerbecomes unavailable,therefrigerator will switchoperationto DCvoltage.

CAUTION: Neverstore combustible materials near the refrigerator. Storingcombus-

tiblematerials near therefrigeratorcreatesa safety hazardandalso decreases the

ventilationof thecoolingsystemwhich decreases therefrigeratorperformance.

Donot touch the evaporator or other metalpartsinside the refrigeratorcabinetwithwet

handsbecause they can freezetotherefrigerator.

Alwaysdisconnect all power sourcesfromtherefrigerator when doingroutinemainte-

nance.Have service workdoneonlyby a qualifiedservicetechnician.

Agreenpower light illuminates when the refrigerator is “ON”.

Therefrigerator temperature iscontrolledby a thermostatcontrol. Number“1”(“REF”) is the

warmestand number “5”(“FREEZE”)is the coldest thermostatposition. Forefficient operation,

changethe thermostat control according to thetypesoffoodstored and the ambient tempera-

ture.

Topreservefrozenfood,turn the thermostatcontrolknob to the “5”(“FREEZE”)position.

Toturnofftherefrigerator,turnthethermostatcontrol to the “OFF” position. If you are not going

tousetherefrigeratorforan extended period of time:

- Removethefoodfromtherefrigerator.

- Removethepower plug(s) from the socket.

- Cleananddrytheinside of the refrigerator.

- Allowthedoor to be open a small amount.

Cooling Unit Basics

Thecooling unit of your Norcold refrigerator makes heat. Thisheat must be removed quickly

and efficiently in order for the refrigerator to have its maximum cooling performance. When the

refrigerator is in an enclosed space, the temperature within the space will rise quickly and will

reducethe cooling performance of the refrigerator. Continuedoperationat high temperatures

candamage the refrigerator compressor and othercomponents.

A free flow of air (ventilation) through the refrigerator condenser coils and around the

compressor is necessary for the refrigerator to operate correctly. While Norcold refrigerators

aremade to operate in moresevere conditions than typical household refrigerators, you should

notoperate the refrigerator in high ambient temperatures. This will result in poorperformance

andpossiblefoodspoilage

Convection Basics

Whenventilatinganenclosedspace,

consider the facts of natural convection,

that cool air falls and warm air rises. The

idealventilationdesignwilluse natural

convection and provide a path for cool

air to enter below the refrigerator and

warmer air to exit above the refrigerator.

The design of the refrigerator allows this

to occur if there is a ventilation opening

above the refrigerator. The heat created

by the refrigerator can then flow freely

out of the enclosed space rather than be

trapped within it.

Air in

Air out

Storage

When storing portable refrigerators/freezers,

make sure that there are no obstructions

(luggage, etc.) around the refrigerator while it

isoperating. Make sure that there is adequate

ventilationspaceto the refrigerator. Locate

the ventilation space in an area that allows

naturalconvection through the refrigerator

condensercoils and around the compressor.

Understanding Ventilation for Norcold Portable Refrigerators/Freezers

For the maximum cooling efficiency and the lowest power consumption, use the following

guidelines. These are especially important when using the refrigerator under a counter or in an

enclosedspace.

- Make sure that there are at least 3 inches

of clearance on all three sides of the

compressorcompartment.

- When using the refrigerator in an

enclosed space such as an RV

basement,makesure that there are at

least 48 square inches of ventilation area

abovethe compressor compartment.

- Theventilationarea should open into

the living area of the vehicle.

CAUTION: Morethan48square inches of ventilation area will improve the

operating efficiency of the refrigerator. Less than 48 square inches of ventila-

tion area will result in poor refrigeration performance, continuous compressor

operation,and a shortened refrigerator life.

StoringFood

Store fresh foods in covered dishes, inplastic bags, in foil wrap, etc.to prevent them from

becomingdryandfromtransferring odors to other stored foods.

Store frozen food in the freezer compartmentfor several daysifthe thermostatcontrol isatthe

“5”(“FREEZE”) position. If frozen food is allowedtothaw,DO NOTattempt to refreeze it.

3”

Protection System

Your refrigerator has an over currentprotectionsystem in the electronic circuit to prevent

damagetotheinverterwhichmayoccurduetoareverse polarity connection.

Iftherefrigerator does not operate and the green powerlightdoes not come on, check the fuse,

whichislocatedin the cigarette plug body of the DC power cord, andthepolarityofthe DC

powersupply. Ifthe refrigerator still does not operate,anotherproblemcanexistintheinverter.

Havean authorized NorcoldServiceCentercheck the refrigerator.

ModelsMRFT15andMRFT40 onlyhavean10Ampglassfusethat islocatedinthecigarette

lighterplugbodyoftheDCpowercord.

ModelMRFT60 only has a15Ampglassfusethatis located in the fuseholderoftheDC power

cord.

Defrosting

It is normal for frost to collect on the freezer plate inside the refrigerator. Excess frost de-

creasesthe cooling performance of the refrigerator. Defrost therefrigerator as necessary.

CAUTION: Donotusesharpobjects, a hair dryer, a heat gun, etc. to defrost the

refrigerator. Damage to the interior of the refrigerator can occur.

-Turn thethermostatcontrolto “OFF”.

- Removeallfood from the refrigerator.

- Put dry towels (etc.) inside the refrigerator to absorb the excess water.

- Remove the wet towels (etc.) and dry the inside of the refrigerator

- Turnthe thermostat control to the desiredsetting.

- Putthefoodinthe refrigerator.

Cleaning

Agoodtime to clean the refrigerator is just afteryoudefrostit.

Cleanthe inside of the refrigerator asoften as necessary to avoid foododors:

- Removeallfood from the refrigerator.

NOTE: Donot use abrasivecleaners,chemicals,or scouring padsbecausethey can damage

theinsideoftherefrigerator.

- Washtheinside of the refrigerator and the door gasket withasolutionof liquid dish

detergentand warm water.

- Rinse with clean water and dry.

- Aftercleaning,putathincoatingofpetroleum jelly on the hinge side of the gasket to keep it

softandtopreventitfromrolling.

Over cooling drains your battery

Whenthe ambienttemperatureisbetween 70°and90° F,keepthethermostatat the“3“position

toavoidan excessive drain of the battery. When making ice, or storing frozenfoods,turn the

thermostatto the coldest setting“5“.

Check the Battery Charge Level

IftheDCvoltage to therefrigeratoris lessthan10.7volts,the coolingperformanceof therefrigera-

torwillimmediately decrease. Make sure that the battery is fully charged.

Afullychargedbattery willhave aspecific gravityreading ofbetween 1.260and1.280. Thebattery

voltageis best indicated whenthe refrigerator is “ON” and the batterycharging system is “OFF”.

Chargethebattery when the specific gravity reading is less than 1.200.

CAUTION:

- Neveruseabattery charger,anAC/DCconverter, a rectifier, or etc.insteadofabattery

tooperate the refrigerator on DC power. Theseelectricaldevicescausehigh ripples or

surgevoltageswhich can damagetherefrigerator.

- Neverusea commercial inverter or converter to operate the refrigerator onAC power.

Theseelectricaldevices do not hold the constant frequencythatis necessary for the

refrigerator.

- Onlyusea“quick charger” on the battery if the thermostat control isturnedto“OFF”. If

a“quickcharger” is used on the battery while the thermostat control is “ON”,damage

tothe refrigerator can occur.

Install the Lifting Handles

(ModelsMRFT40 and MRFT60 only)

Liftinghandlesare packed insidetherefrigerator.

Usingthe screw provided, install the lifting handles on

the ends of the refrigerator as shown.

Connect the Power Supply

Thisrefrigeratoroperatesoneither120volts(60 hertz)AC current in your home or 12/24 volts

DCcurrentfromabatteryinyour car,boat,trailer, camper, etc. If both power supplies are

available,therefrigerator will select and operate on AC voltage. If an ACpowersupply

becomesunavailable, the refrigerator willswitchoperationto DC voltage.

Connect the AC power supply

- Turnthe thermostatcontrolknob totheOFF position.

- Putthe square plug end of theAC power cord into theAC

connectorof the refrigerator.

- Putthe standard plug end of theACpowercord into any

standardACreceptacle.

- Donotuse an extension cord.

Connect the DC power supply

Thebatteryvoltage varies with the type of vehicle. Most

Americancars and boatsuse a 12 voltsystem. A12/24volt

battery with a negative ground is necessary to operate the

refrigeratoronDCpower.

For Models MRFT15 and MRFT40 only

- Turn the thermostatcontrolknobtothe OFF position.

- Putthesquare plug end of the DC power cordintothe DC connector of the refrigerator.

- Putthecigarettelighter plug end of the DC power cord into thecigarettelighterof the

vehicle.

NOTE: Whennotusingtherefrigerator, remove the plug from the cigarette lighter to prevent

dischargeofthe battery.

ForModel MRFT60 only:

- Turnthe thermostatcontrolknob totheOFF position.

- Putthesquareplug end of the DC power cord into the DC connector of therefrigerator.

- Connect the two wires from the other end of the DC power cord to the battery of the

vehicle.

CAUTION: Onlyconnect the refrigerator directly to the battery. Becausetheyoften

generatehighvoltagepulsesandcausetransistordefectsin the inverter, no other

switches,lead wires, or electrical equipment should sharethewiring between the

refrigeratorandbattery.

As the distance from the vehicle battery to the refrigerator increases, the correctAWG wire size

alsoincreases. If he wire size is toosmall for the distance, a voltagedrop occurs. The voltage

dropdecreasesthecoolingperformanceoftherefrigerator.

1. Norcoldrecommendsthat you use the following wire sizes:

- Measurethedistancefromthe vehicle battery to the refrigerator:

- If the distance is less than 19 feet, use 14AWG wire on DC 12 volt series or 16AWG

onDC24voltseries.

- If the distance is between 19 and 32 feet, use 12 AWG wire on DC 12 volt series or

14AWG on DC 24 volt series.

- If the distance is more than 32 feet, use 10AWG wire on DC 12 volt series or 12

AWG on DC 24 volt series.

NOTE: Itisnotrecommendedtolocatetherefrigeratormorethan32feetfromthe

battery.

- Twist the lead wires to reduce the radio interference and induction ofahighvoltagesurge

fromthe outside (SeeArt01518).

2. OnMRFT60 models only, installa 15Amp fuse in theDCwiring circuit near the battery to

protectthe refrigerator against reverse polarity or a short circuit.

Electrical equipment

Battery

CORRECT

INCORRECT

Twist lead wires

Refrigerator

Battery

Refrigerator

Art01518

For your reference

Thewiring diagram shownbelowisrecommended for dual batteryhookup(SeeArt01516).

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