Operation Manual

Gas system
8
85Caravan - 14-09 - EN
Operating modes The DuoControl switching facility has two operating modes:
z Winter operation "On and heating"
z Summer operation "On"
Putting into operation:
 Open the regulator taps on the gas bottles (Fig. 80,1 and 6).
 Use the knob (Fig. 80,4) on the switching valve (Fig. 80,3) to select the gas bottle
which is to be the primary source of gas (primary bottle).
Always turn the knob as far as it will go.
 Switch on the DuoControl switching facility at the operating unit (Fig. 81).
To do so, set the rocker switch (Fig. 81,7) to winter operation "On and heating"
(Fig. 81,2) or to summer operation "On" (Fig. 81,4). The switching valve is now
vented. The yellow indicator lamp (Fig. 81,1) lights up when winter operation
has been selected and the regulator defroster is switched on.
Switching off:  Set the rocker switch (Fig. 81,7) to " " (Fig. 81,3). The yellow indicator lamp
(Fig. 81,1) goes out.
 Close the regulator taps on the gas bottles (Fig. 80,1 and 6).
Remote display The indicator lamps on the operating unit (Fig. 81,5 and 6) indicate in the vehicle
interior whether the primary bottle is ready for operation.
Changing gas bottles If the green indicator lamp (Fig. 81,6) goes out during operation and the red indi-
cator lamp (Fig. 81,5) lights up, the gas bottle selected as the primary bottle is
empty and has to be changed. The reserve bottle continues supplying the gas
appliances with gas.
Changing gas bottles:
 Close the regulator tap on the empty gas bottle.
 Unscrew the gas tube from the gas bottle.
 Connect the full gas bottle to the gas tube.
 Open the regulator tap on the gas bottle.
 Set the knob on the switching valve with half a turn, so that the newly replaced
gas bottle will serve as a reserve bottle.
 Press the button for the hose break guard at the high-pressure hose to activate
it.
 If necessary, press the reset button at the crash sensor.
X When changing gas bottles, do not smoke or create any open fire.