Installation Manual 7
Electrical current necessary:
DC Operation N10DC models - 12 volts DC voltage (10.4 volts min. - 15.4 volts max.)
Make no changes to any of the electrical wiring supplied with the refrigerator. Any changes that you would make to the electrical wiring
will void the warranty.
Connect the 12 volts DC supply:
To reduce the risk of electrical interference from other DC appliances and induction from voltage
spikes:
- The refrigerator must have an independent ltered 12volt DC supply.
- Route the DC power supply wires including the fuses directly from the battery to the refrigerator.
- To connect the DC power supply wires, it is recommended to install 1/4” insulated female spade
terminals or Stocko connector W2041.100G to the connecting wire. (See Art 02740)
The use of a battery in parallel and between the refrigerator and any electrically ltered DC power converter
or battery charger used to supply DC power to the refrigerator is recommended. If an electrically ltered DC
power converter is used alone it must have maximim DC ripple voltage of less than or equal to 250mV.
As the distance from the vehicle battery to the refrigerator increases, the correct AWG wire size also increases. If the wire size is too
small for the distance, a voltage drop occurs. The voltage drop decreases the cooling performance of the refrigerator.
1. Select Wire Size :
Assuming a minimum voltage of 12V is supplied by the vehicle battery, AWG wire size should be selected
so that the voltage drop from the vehicle battery or power converter is no more than 0.3V.
- Recommend Wire Size :
- If the distance is 0 - 12 feet, use #12 AWG min. wire size.
- If the distance is 12-20 feet, use #10 AWG min. wire size.
- If the distance is over 20 feet, use #8 AWG min. wire size.
- To accommodate connectors when #8 AWG wire is used, a smaller gauge wire may be spliced in.
- Longer than recommended lengths for each wire size may be used if the voltage drop from the power source is less than 0.3V.
Using longer than recommended lengths incresases the risk that the refrigerator may not turn back on after drop in
supply voltage; especially when power is supplied from a battery.
2. To protect the DC power supply wiring, install a fuse or circuit breaker in the positive (+) DC power supply wire as close to the battery
as possible. The fuse should be sized according to the ANSI/RVIA Standard for Low Voltage Systems in Conversion and Recreational
Vehicles.
- There is a 15 amp automotive fuse in the DC circuit at the refrigerator power supply leads to protect the controls of the refrigerator.
3. Connect the DC power supply wires.
If the DC power supply leads are attached incorrectly, the refrigerator will not operate.
- Connect the positive (+) DC power supply lead to the red wire [99] of the refrigerator.
- Connect the negative (-) DC power supply lead to the black wire [224] of the refrigerator.
- Make sure that:
- Each DC power supply lead is attached to the correct polarity wire of the refrigerator power supply.
- The chassis or the vehicle frame is not used as one of the conductors.
- The DC power supply wires including the fuses are routed directly from the battery to the refrigerator.
Connect the Electrical Components
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NOTICE
(RED)
(WHITE)
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ART 02740
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