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For the underfloor installation, a value that is safe for this type of heating should be set, usually 55C. The valve
will close when the installation reaches the set temperature and when it continues to grow the regulator will
switch off the CH pump. For radiator heating, a maximum value needs to be set, i.e. 96C. For this setting, the
emergency valve will discharge the heat into the installation and the CH pump will not be blocked in the
installation protection function. Therefore, in a particular situation, the regulator will discharge the heat into
the installation as an emergency.
Minimum temperature behind a valve
The temperature behind the mixing valve, which will be maintained even when heat demand will be lower, can
be set. For example, the room temperature is reached, but we want to keep the warm floor effect, then by
setting, for example 35C, we feel comfort throughout the entire heating period.
Valve opening time
Enter the number of seconds specified on the valve actuator. For example, for a time of 2.5 minutes enter 150
seconds.
Reaction time adjustment
Adjustment of the mixing valve reaction time is necessary when the valve operates with high frequency (over-
regulation) or very slow. Generally, for a properly chosen valve, there is no need to change this parameter. The
default setting equals five and this is an average value. The operation of the valve can be slowed down by
changing the parameter to, e.g. 2. To make the reaction faster, we change the parameter to 7. The range is
from 1 up to 10.
Additional boiler temperature
Stable operation without closing the valve to protect the boiler requires a higher temperature in the boiler than
in the CH installation. The temperature in the boiler is determined as follows: required CH temperature +
parameter value. Note: This parameter changes the boiler temperature only when the mixing valve is active
(see
Turn on valve control
).
Circuit control
In this option, the Installer determines the method the user will use to set the heating temperature. The
following methods are available:
• Manual
• Thermostat
• Ther external sensor
• Room external sensor
MANUAL
The heating temperature is set, i.e. the temperature of water in the CH installation. The user has no additional
control possibilities.
THERMOSTAT
The CH temperature is set by the user, but the user has an additional parameter to use -
Heating temperature
decrease.
NOTE:
