Norcold DC-3984 Owners & Installation Manual

Also see for DC-3984: Parts list Owners and installation manual

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Norcold DC-3984 Owners & Installation Manual Manual pdf 8 page image

Installation and Owner’s Manual 8This refrigerator operates on 12/24 volts DC current from abattery.CAUTION: Only connect the refrigerator directly to thebattery. Because they often generate high voltage pulsesand cause transistor defects in the inverter, no otherswitches, lead wires, or electrical equipment shouldshare the wiring between the refrigerator and battery.When using either a converter or a battery charger, make surethat they are connected in parallel between the battery and therefrigerator. Do not use a converter or battery charger to supplythe DC power directly to the refrigerator because these twodevices do not supply filtered DC power (See Art01521).Correct ................................................................................. 1Incorrect ............................................................................... 2Refrigerator .......................................................................... 3Battery charger or AC/DC converter, etc. .............................. 4Transistorized DC power supply ......................................... 5Condenser ........................................................................... 6Battery .................................................................................. 7As the distance from the vehicle battery to the refrigeratorincreases, the correct AWG wire size also increases. If the wiresize is too small for the distance, a voltage drop occurs. Thevoltage drop decreases the cooling performance of the refrig-erator.Connect the 12 Volt DC SupplyInstall the RefrigeratorThe refrigerator should be installed only on a solid surface inthe vehicle.1. Align the mounting rails on the bottom of the refrigerator [1]with the mounting rails on the bottom of the refrigeratorenclosure [2] (See Art01652).2. Carefully push the refrigerator completely into the enclosure.3. Open the door of the refrigerator.4. Align the hole in the mounting rail on the bottom of therefrigerator and the hole in the mounting rail on the bottom ofthe refrigerator enclosure.5. Put the mounting screw down through the opening [3] in thebottom trim of the refrigerator (See Art01651).CAUTION: Make sure that the mounting screw is notcross-threaded in the mounting flanges. Cross-thread-ing will damage the mounting flange and/or the screw.6. Turn the mounting screw down into the mounting rails.7. Tighten the mounting screw.VentilationThis refrigerator is made for a built-in installation. Correctventilation is necessary for the correct operation of therefrigerator and to increase the life of the refrigerator coolingsystem.Correct ventilation allows the natural air flow that is necessaryfor good refrigeration. Cooler air comes in through a lowerintake vent, goes around the refrigerator coils where it removesthe excess heat from the refrigerator components, and goes outthrough a side exhaust vent. If this air flow is blocked ordecreased, the refrigerator will not cool correctly.The refrigerator has a fan which will operate only when theambient temperature is higher than approximately 95° F.CAUTION: The refrigerator has built in vents on the rightand left sides. Make sure that the flow of air throughthese vents is not blocked in any way. Blockage of airthrough these vents can cause:- shortened life of the refrigerator cooling unit.- poor cooling performance of the refrigerator.- continuous operation of the refrigerator.- fast battery discharge.- void of the refrigerator warranty.1. Norcold recommends that you use the following wire andfuse sizes:- Measure the distance from the vehicle battery to therefrigerator:- If the distance is less than 12 feet, use 16 AWG wireand a 10 Amp fuse.- If the distance is between 12 and 20 feet, use 14 AWGwire and a 10 Amp fuse.- If the distance is more than 20 feet, use 12 AWG wireand a 10 Amp fuse.- Twist the lead wires to reduce the radio interference andinduction of a high voltage surge from the outside (SeeArt01518).Correct ................................................................................. 1Incorrect ............................................................................... 2Refrigerator .......................................................................... 3Battery .................................................................................. 4Electrical equipment ............................................................ 5Twisted lead wires ............................................................... 6NOTE: This wiring is already in the vehicle. It is locatedbehind the wall trim panel.2. Push the DC connector of the refrigerator completely into theDC plug of the vehicle.

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