Technical data

6 720 611 445 GB (04.05)
Individual settings
27
Entering a setting
B To enter the setting for a function, turn the function
control.
Storing a setting
B Level 1: press and hold the button until the dis-
play shows [ ].
B Level 2: press and hold the and buttons simul-
taneously until the display shows [ ].
After completing the settings
B Reset the temperature controls and the function
control to their original positions.
6.2.2 Setting the anti-cycle time
(Service Function 2.4)
This service function is only active if Service Function
2.7, automatic anti-cycle time, is deactivated.
The anti-cycle time can be set to between 0 and 15 min-
utes (is factory set to 3 minutes).
If the setting 0 is entered, the anti-cycle time is inactive.
The shortest possible anti-cycle time is 1 minute (rec-
ommended for single-pipe and hot-air heating systems).
6.2.3 Setting the maximum boiler flow temper-
ature (Service Function 2.5)
The maximum flow temperature can be set to between
50˚C and 88˚C (factory setting).
6.2.4 Setting the switching difference
(Service Function 2.6)
The switching difference is the permissible divergence
from the specified flow temperature. It can be set in
increments of 1˚C. The adjustment range is 1 to 30˚C
(is factory set to 0˚C). Minimum flow temperature is
30˚C.
6.2.5 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 factory setting is the max. rated heat output.
B Set the room thermostat and thermostatic radiator
valves to max. temperature.
B Press and hold the and buttons simultane-
ously until the display shows = =.
The and buttons will light up.
Fig. 36
B Turn the temperature control until the display
shows 5.0.
After a short delay, the display then shows the set
heating output in percent.
Fig. 37
B 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 41).
B Turn the function control until the display shows the
desired code number.
The display and the and buttons will flash.
B 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!
B Press and hold the and buttons simultane-
ously until the display shows [ ].
The heating output is now stored.
Fig. 38
B Return the temperature controls and to their
original positions.
The display will revert to the boiler flow temperate.
i
If the appliance is connected to an outside
temperature controlled programmer, the
programmer sets the switching difference.
It does not need to be set on the appliance.
i
The full rated heat output is still available
for hot water or charging the hot water cyl-
inder even if the heating output has been
limited.
6 720 611 137-15.1O
6 720 611 137-16.1O
6 720 611 137-17.1O