Safety Instructions - Truma DuoControl Mode D'emploi

An automatic PRV* safety device integrated in the DuoControl
with limited flow protects the connected consumers against
impermissibly high pressure. As soon as an impermissibly
high pressure arises on the output side, the PRV opens and
blows out the overpressure into the air. The PRV closes auto-
matically after the pressure is reduced
* = Pressure Relief Valve

Safety instructions

– The use of upright gas cylinders from which gas is extracted
in the gas phase is mandatory when operating the
DuoControl gas pressure regulation system. Gas cylinders
from which gas is taken in the liquid phase (e.g. for fork
lifts) must not be used, since they would result in damage
to the gas system.
– High-pressure hoses are required for connecting the gas
cylinders to the gas pressure regulation system. Truma
provides the necessary high-pressure hoses with the most
commonly-used connection variants for European gas cylin-
ders (see Page 73).
Even though it is not always a mandatory requirement,
Truma always recommends the use of high-pressure
hoses with a hose rupture protection (HRP).
– Pressure regulation devices and hoses must be replaced
with new ones no more than 10 years after their date of
manufacture (every 8 years if used commercially). The oper-
ator is responsible for this.
Notes on operating the gas system while driving:
– The device manufacturer's instructions must be followed
before operating a liquid gas device while driving.
– In the case of motor homes built from 01/2007, a safety
shut-off device must be provided in accordance with the
heating appliance directives 2001/56/EC, 2004/78/EC and
2006/119/EC or UN ECE R122 for operating a liquid gas
heater while driving. When a pipe is fractured in an acci-
dent, this prevents gas from being able to escape.
In the case of caravans, since 08/2012 and in accordance
with UN ECE R122 Appendix 8 (Amendment 3) it has been
necessary to provide a safety shut-off device for operating a
liquid gas heater while driving.
For this, Truma supplies a version of the DuoControl gas
pressure regulation system with an integrated crash sensor
(CS). In combination with a high-pressure gas hose with in-
tegrated hose rupture protection (HRP), this DuoControl CS
gas pressure regulation system complies with all of the
relevant standards, regulations and directives and therefore
allows the gas system to be used throughout Europe while
driving.
– For vehicles manufactured before 01/2007 there are no
restrictions for operating the gas system while driving **.
The enclosed stickers (close gas cylinders while driving)
are not used in this case.
** Except for France:
In France, operation of a gas system while driving is only
permitted in type-tested vehicles with first registration as
of 01.01.2007. In older vehicles the operation of the gas
system while driving is also non-permissible in combination
with a safety shut-off device.
Gas cylinders that are not connected to the gas installation
must be closed at all times and provided with protection
caps. Connected gas cylinders are considered to be operat-
ing materials and not hazardous materials (ADR exemption
in accordance with sections 1.1.3.1 and 1.1.3.2 e).
13