5
Gas condensing boiler R0XXX
Models and output
Application possibilities
Description
Models and output
The R0XXX is a condensing and
modulating gas boiler with one or
two pre-mix burners and
avaliable in 7 types within an
output range from 60 to 200 kW.
Application possibilities
The R0XXX is applicable for all
central heating sytems built
according to EN12828 with a maxi-
mum target temperature of 90*C.
In cascade applications (max. 8
boilers with boiler/cascade control-
ler) the R0XXX can cover installati-
ons up to 1600 kW.
Preferred applications are central
heating and sanitary hot water
production in multi-family buildings,
municipal and industrial buildings.
Description
The R0XXX is a fully modulating
condensing boiler with one or two
pre-mix burners. The control unit of
the boiler adapts the modulation
ratio automatically to the heat de-
mand requested by the system.
This is done by controlling the
speed of the fan. As a result, the
mixing system will adapt the gas
ratio to the chosen fan speed, in
order to maintain the best possible
combustion figures and therewith
the best efficiency. The flue gases
created by the combustion are
transported downwards through
the heat exchanger and leave at
the boiler at the top into the chim-
ney connection.
The return water from the system
enters the boiler in the lower sec-
tion, where is the lowest flue gas
temperature in the boiler. In this
section condensation takes place.
The water is being transported
upwards through the heat ex-
changer, in order to leave the boil-
er at the flow connection. The
cross flow working principle (water
up, flue gas down) ensures the
most efficient combustion results.
