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Set boiler temperature in °C
Voltage signal in V
By means of the adjustment channels TMax and TMin the maximum and minimum
values for the set boiler temperature can be defi ned.
When the Sen. fl ow option is activated, the controller monitors whether the heat
generator actually reaches the desired set temperature and, if necessary, adjusts the
voltage signal accordingly. In order to do so, the controller checks the temperature
at the boiler fl ow sensor when the interval has elapsed. If the temperature meas-
ured deviates from the set boiler temperature by more than the hysteresis, the
voltage signal is adapted by the Correction value. This process will be repeated
until the temperature measured is identical to the set boiler temperature.
When the Min. runt. option is activated, a minimum runtime can be adjusted for
the demand.
Pump
For loading pumps, the shared relays Pump 1 and Pump 2 are available. Concern-
ing a demand, the options Delay and Overrun can be activated for the shared
relays. The demand can either be time- or temperature controlled. For tempera-
ture-dependent control an allocated boiler sensor is required.
The Delay option is used for switching on the loading pump with a delay to a de-
mand. If the adjusted minimum temperature at the allocated sensor is exceeded or
the adjusted duration has elapsed, the allocated output switches on. The Overrun
option is used for switching off the loading pump with a delay to a demand. If the
temperature falls below the adjusted remaining boiler temperature or the adjusted
duration has elapsed, the allocated output switches off.
Valve
Valves and parallel relays can use the shared relays Valve 1 and Valve 2. These
shared relays are energised individually or along with a reference relay (e. g. loading
pump).
Note
If the 0-10 V demand is used for DHW heating, the voltage signal will always
be identical to TMax.
10.2 Heating circuits
The controller has 2 mixed weather-compensated heating circuits and is able to
control up to 5 external mixed heating circuits by means of extension modules.
If one or more extension modules are connected, they have to be registered with
the controller. Only registered modules will be available in the heating circuit se-
lection.
If New HC… is selected for the fi rst time, the fi rst heating circuit is allocated to
the controller.
In the heating circuit menu, relays for the heating circuit pump and the heating
circuit mixer can be selected.
3 relays are required for a mixed heating circuit.
In the System parameter, a selection can be made between Heat, Cool and
Heat/Cool.
If the measured fl ow temperature deviates from the set fl ow temperature, the
mixer will be activated in order to adjust the fl ow temperature correspondingly.
The mixer runtime can be adjusted with the parameter Interval.
Summary of Contents for DeltaSol MX
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