Gas system
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2999828 - 05/18 - EHG-0012-00EN
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Fig. 43 Gas bottles with DuoCon-
trol
Fig. 44 DuoControl regulating system
The DuoControl regulating system consists of a reversing valve (Fig. 43,4)
and a crash sensor (Fig. 43,5). The DuoControl regulating system is in-
stalled between the gas tubes (Fig. 43,3) with hose break guard (Fig. 43,1).
The knob (Fig. 44,1) on the reversing valve is used to select which of the
gas bottles is to be used as primary bottle and which is to be used as re-
serve bottle.
The status of the gas supply is indicated in the inspection window
(Fig. 44,2):
Green: Gas is taken out of the primary bottle.
Red: Gas is taken out of the reserve bottle.
The operation with only one gas bottle is allowed but in this case the open
connection must be closed with a blind cover (Fig. 44,4).
The crash sensor blocks the gas supply in the event of a significant impact
(e.g. accident). The crash sensor is put into operation with the green reset
button (Fig. 44,3).
The hose break guard (Fig. 43,1) blocks the gas flow if the connected hose
breaks. The hose break guard must be activated by pressing the green but-
ton.
The DuoControl regulating system can be heated (defroster). If winter oper-
ation is set at the operating unit, the DuoControl regulating system will be
heated automatically. Thus, faults of the gas system due to frost in winter
are prevented.
1 Yellow indicator lamp, defroster
2 Winter operation position
3 OFF position
4 Summer operation position
5 Red indicator lamp, primary bottle
empty
6 Green indicator lamp, supply from
primary bottle
7 Rocker switch
Fig. 45 Operating unit (DuoControl)
Construction of the unit
Crash sensor
Hose break
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