Connecting the refrigerator RMDX21, RMDX25
34
S+ (RMDX25 only)
In automatic mode, the refrigerator is first powered with DC power from the
vehicle's own solar system. The refrigerator electronics uses the S+ signal
of the solar charge controller to detect a solar system. The solar charge
controller must have an AES output and produce sufficient current to run the
refrigerator.
➤ Connect the S+ connection on the controller (fig. t G, page 14) to the
respective terminal of the solar charge controller.
Suitable solar charge controllers are available from specialist dealers.
The manufacturer recommends, for example:
z Büttner MT 300-S
(www.buettner-elektronik.de)
z Votronic MPP 240 Duo Digital
(www.votronic.de)
7.3 Connecting an AES refrigerator (optional)
See fig. v, page 16
Connection to suit motor home or caravan with the D+ wire connected to the
vehicle alternator or ignition switch.
No house battery recharging from the vehicle.
The D+ connection is taken to the vehicle alternator.
See fig. w, page 16
Anderson plug controlled by vehicle relay to the ignition switch. Power can
only be supplied if the engine is running.
No house battery recharging from the vehicle.
See fig. x, page 17
Using a fridge movement switch to add 12 Vg to the D+ connection wire,
only when the vehicle is moving.
No house battery recharging from the vehicle.
The D+ is turned on and off via an optional fridge movement switch.
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