Norcold N10DCX-10 Manuel D'installation page 8

Connect the Electrical Components
1. Select Wire Size:
Assuming a minimum voltage of 12V is supplied by the vehicle battery, AWG wire size should be selected so that
!
WARNING
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 increases the risk that the refrigerator may not turn back on after drop in
NOTICE
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
or power source 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.
This amp should only be replaced with a 15 amp automotive fuse.
3. Connect the DC power supply wires.
NOTICE
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 power source to the refrigerator.
- The wire connections must be clean, tight and free of corrosion. If any of these items are not correct, a voltage drop to the
refrigerator will occur.
The voltage drop will decrease the cooling performance of the refrigerator. Disconnect the positive (+) DC
!
CAUTION
power supply wire from the battery before you do a "fast charge" of the battery. Failure to disconnect the
positive (+) power supply wire from the battery during a "fast charge" can cause damage to the refrigerator
or other DC appliances.
! Allow the refrigerator to stand upright for 30 minutes before being powered on.
CAUTION
Installation Manual 8