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Individual settings
6.2.4
Setting the maxim CH flow temperature
(Service Function 2.5)
The maximum CH flow temperature can be set to
between 35 °C and 88 °C (factory setting).
6.2.5
Setting the switching difference
(Service Function 2.6)
If the appliance is connected to an out-
i
side-temperature controlled programmer,
the programmer sets the switching differ-
ence.
It does not need to be set on the appli-
ance.
The switching difference is the permissible divergence
from the specified CH flow temperature. It can be set in
increments of 1 K. The adjustment range is 1 to 30 K (is
factory set to 0 K). The minimum CH flow temperature
is 30 °C.
6.2.6
Setting the heating output
(Service Function 5.0)
The heating output can be set to any level between min.
rated heat output and max rated heat output to limit it to
the specific heat requirements.
The full rated heat output is still available
i
for hot water or charging the hot water cyl-
inder even if the heating output has been
limited.
The factory setting is the max. rated heat output.
y Set the room thermostat and thermostatic radiator
valves to max. temperature.
y Press and hold the
ously until the display shows = =.
The
and
buttons will light up.
Fig. 36
28
and
buttons simultane-
6 720 610 332-50.1O
y Turn the temperature control
shows 5.0.
After a short delay, the display then shows the set
heating output in percent.
6 720 610 332-51.1O
Fig. 37
y Refer to the settings tables for heating and cylinder
charging output to obtain the relevant code for the
desired heating output in kW (see page 42).
y Turn the temperature control
shows the desired code number.
The display and the
y Measure the gas flow rate and compare with the fig-
ures specified for the code number displayed. If fig-
ures do not match, adjust the code number!
y Press and hold the
ously until the display shows [ ].
The heating output is now stored.
Fig. 38
y Return the temperature controls
original positions.
The display will revert to the CH flow temperate.
6.3
Setting the gas/air ratio
Refer to section 7.1 for details of the method of setting
the gas/air ratio.
until the display
until the display
and
buttons will flash.
and
buttons simultane-
6 720 610 332-52.1O
and
to their
6 720 610 596 GB (01.07)
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