Burstner A 650, Instruction Manual

Page: 91 / 262

91
A-Modell - 11/12 - Ausgabe 09/11 - 2096161 - BUE-0036-10EN
Gas system
7
„
Connect the external gas device to the connection point (Fig. 108,1).
„
Open the gas isolator tap (Fig. 108,2).
7.6 Crash protection unit switching facility (special
equipment)
The crash protection unit is an automatic switching facility with a control unit
for a two-bottle gas system. The switching facility automatically switches gas
supply from the primary bottle to the reserve bottle as soon as the primary
bottle is either empty or no longer ready for operation. The gas appliances may
still continue operation. The switching facility is suitable for all commercial gas
bottles from 3 kg to 33 kg. In the event of an accident or a too high angle of the
vehicle the gas supply will automatically be interrupted.
Construction of the unit The crash protection unit consists of two flow restrictors with manual release
button (Fig. 109,6) a reversing valve (Fig. 109,4) with pressure regulator
(Fig. 109,2), an electrovalve (Fig. 109,5) and the operating unit with tricol-
oured LED. The reversing valve is installed between the two gas tubes
(Fig. 109,1).
Use the knob (Fig. 109,3) on the reversing valve to select which of the gas bot-
tles is to be used as a primary bottle and which is to be used as a reserve
bottle.
X
Do not use the switching facility in closed spaces.
Z
When the vehicle is equipped with the crash protection unit the living area
heater may be operated during the journey.
Z
If the vehicle is equipped with a panel of the DT series and the switching
facility is operated via this panel, the operating unit is redundant.
Z
Also read the manufacturer's instruction manual.
Fig. 109 Crash protection unit switching facility