Connecting the refrigerator RUA5208X, RUA6408X, RUA8408X
28
AC power
➤ Connect the refrigerator with the mains plug to an AC socket.
DC power
Please note the following cable sizes:
– 12 V DC vehicle battery connection: ≥ 10 mm
2
– 12 V DC house battery connection: ≥ 1mm
2
– Connection D+: ≥ 0.5 mm
2
– Total cable length: max. 8 m
➤ Protect the DC power supply for the 12 V DC heater with 30 A fuse.
➤ Protect the DC power supply for controls with 3 A fuse.
➤ Run cables to the heating element via a relay or suitable means controlled by an
ignition switch to prevent battery from completely discharging, if the engine is
switched off (fig. p, page 24).
➤ Connect vehicle battery cables to the respective plus and minus terminal
(fig. q 23, page 25).
➤ Connect house battery cables to the respective plus and minus terminal
(fig. q 26, page 25).
D+
In automatic mode, the refrigerator selects the most favourable mode available. The
refrigerator is only operated with DC power when the vehicle engine is running. The
electronics of the refrigerator uses the signal D+ from the vehicle alternator to detect
the running engine.
➤ Connect the D+ connection to the controls (fig. q 25, page 25) with the
respective terminal of the vehicle.
RUA8408X-I-AU.book Seite 28 Montag, 3. Juni 2019 2:40 14
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