Hoval UltraGas 2 - Important Notices; Approved Fuels

1. Important notices
Dear customer,
With the UltraGas
®
2, you have acquired a product manu-
factured according to the state-of-the-art and to the high-
est quality standards.
For the correct installation and operation of your
UltraGas
®
2, all applicable laws, regulations and stan-
dards must be complied with as well as the regulations
of the responsible energy supply company. If you have
any questions, please contact the installer of your heating
system.
Assembly and installation of the heat generator are only
allowed to be carried out by a trained gas appliance spe-
cialist from a licensed specialist company. Before com-
missioning, an installation inspection must be carried out
and the heating system must be approved by the gas
board.
To guarantee safe and trouble-free operation, operate
your heat generator in accordance with these operating
instructions at all times.
The heat generator is only allowed to be used for its in-
tended purpose and with fuels for which it was designed
and which have been approved by Hoval.
Do not carry out any modications to the system, otherwi-
se all claims under the warranty will be waived. Conver-
sion kits must be installed and the installation approved
by a Hoval customer service technician or a licenced gas
appliance specialist.
Reliable and safe functioning of a heat generator, as well
as the achievement of optimum e󰀩ciency and clean com-
bustion are only possible and guaranteed if the system is
cleaned, serviced and checked at least once every year.
Please note the instructions in the operating and installa-
tion instructions.
In the event of a fault or in the event of damage, please
contact the Hoval customer service technician to inquire
about the necessary repairs. In the meantime, shut down
the unit to avoid any damage.
To shorten the duration of a service call, switch
o󰀨 the heat generator half an hour before the
arrival of the Hoval customer service techni
-
cian or the licensed gas appliance specialist.
Reason: The heat generator must have
cooled down su󰀩ciently before work can be
carried out on the heat generator. If the heat
generator is operating, there is a risk of burns
from touching hot surfaces.
Provided it is used correctly, your heat generator will en-
sure you enjoy a well heated home for many years.
Hoval customer service
If you have any doubts with regard to the operation of
your heat generator, or if faults a󰀨ect its correct functio-
ning, please contact a Hoval customer service technician.
Our trained customer service technicians will be pleased
to help you.
An optimally set heat generator can not only save you a
lot of trouble, but also a lot of money.
Take advantage of the Hoval customer service o󰀨erings
for regular maintenance, to prolong the service life and
warranty period of your heat generator, and inquire about
a service agreement with extended warranty. Your custo-
mer service consultant will be pleased to advise you!
You will nd the addresses on the last page.
Please pay particular attention to the information in these
operating instructions.
1.1 Approved fuels
UltraGas
®
2 is approved for burning the following fuels:
• Natural gas E
• Natural gas E with a hydrogen content (H
2
) of up to 20 %
• Propane according to DIN 51662
• Biomethane according to EN 16723
In relation to natural gas G20 (100 % methane):
With a hydrogen content (H
2
) of up to 20 %
in accordance with DVGW ZP3100, an output
reduction of up to 7 % is possible.
4
4 219 321 / 03
IMPORTANT NOTES