Radiant R1K 50, User Manual, Page: 9 / 16

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R1K 50 RAIN - RAD - ING - Man.Ut. - 1901.1_firm.L224C_AHS
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3. USE
USER
1.1.5. START-UP
Before starting the boiler make sure that it is
powered and that the gas tap below the boiler is
open.
To start the boiler press the function key ‘ ’ and
select the desired operating mode. If the symbol
is displayed fixed, it means that the function was
activated.
1.1.6. OPERATING MODE
ONLY HEATING MODE
In this mode the boiler meets only the demands of
heating.
To switch the boiler to ONLY HEATING operating
mode, press the function key ‘
’, the symbol ‘
’ will appear fixed on the display, indicating that
the function is enabled.
Whenever heating energy is needed to heat the
rooms the automatic start-up system will start the
burner; this is indicated by displaying the symbol ‘
’ blinking.
ADJUSTING THE HEATING TEMPERATURE
You can adjust the temperature using keys ‘ ’ and
‘ ’ of the heating circuit :
· press key ‘ ’ to decrease the temperature.
· press key ‘ ’ to increase the temperature.
The heating temperature adjustment field ranges
from 30 °C to 80 °C (25 °C – 45 °C for floor systems).
OFF MODE
In this mode the boiler no longer meets the heating
demands, the anti-freeze and pump anti-locking
systems still remain active.
To switch the boiler to OFF operating mode, press
the function key ‘
’, the symbol ‘ ’ will
appear fixed on the display, indicating that the
function is enabled (for non condensing models
will appear the message ‘OFF’).
If the boiler was previously running, it will be turned
off and the post-ventilation and post-circulation
functions will be enabled.
If you have to deactivate the boiler for a long period
of time, proceed as follows:
› contact the Technical support centre that will
empty the water system, where no anti-freeze is
intended, and will cut off the power, water and
gas supply.
› Or leave the boiler in OFF operating mode
keeping active the electrical and gas supplies so
that the anti-freeze function may activate.