Function Description - Truma VeGA Instructions De Montage

1 Touch Panel
2 12 V output (EMERGENCY OFF connector at same time)
3 Water connection
4 Gas connection
5 Air inlet (LE) for supply air (from below)
6 Electronic system
7 Water container (internal)
8 Particle filter
9 Combination filter
10 Desulphurisation cartridge
11 Start burner
12 Fuel cell with reformer unit (embedded in insulation)
13 Charge controller
14 Safety/drain valve (FrostControl)
15 Top-up container for deionised water
16 Exhaust air / exhaust gas double duct
17 Exhaust air / exhaust gas outlet
18 Junction box

Function description

The VeGA fuel cell system is a system operated using liquid
gas (propane, butane and mixtures thereof) for providing an
on-board power supply in recreational vehicles with maximum
output of 250 Watts.
The device consists of the following main components:
– Desulphurisation cartridge for removing odourisers and
other sulphurous constituents from the liquid gas
– Start burner for heating up the fuel cell and reformer unit.
– Reformer unit for converting liquid gas into hydrogen
– Fuel cell for electro-chemical conversion of the hydrogen
and (air) oxygen into electricity
Charge controller for charging the on-board battery of the
–
recreational vehicle
– Subsystems for device-internal media supply (liquid gas,
air, water)
– Electronic system for device-internal regulation and
control
– Supply air ducting for supplying reaction air and cooling
air (with air filter)
– Exhaust air / exhaust gas system for combined removal
of exhaust air and exhaust gas
1
16
9
17
12
11
13
10
8
5 / LE
The VeGA fuel cell operates automatically, i.e. it starts auto-
matically from standby depending on the voltage of the
on-board battery. A VeGA charging cycle takes place as per
the following sequence:
– Start-up phase
System start with battery voltage of <12.2 V and heating up
to operating temperature
– Charging phase
Charging with approximately constant power until the final
charging voltage is reached
– Post-charging phase
Depending on the battery capacity and the load that is
present, until the device-internal shut-off criterion is reached
– Cool-down phase
– Standby
7
15
6
2
4
14
3
18
21