Room sensor
Select the reference sensor for the room temperature.
Room Reference (Night)
Set room temperature for the night-time mode If the temperature is exceeded at the room sensor outside the set times, the relay
will turn off.
Room Reference (Day)
Set room temperature for the daytime mode If the temperature is exceeded at the room sensor at the set times, the relay will turn
off.
Periods
Thermostat activity times
Set the desired periods of time when the thermostat should be active. For each weekday, three times can be specified, fur-
thermore, you can copy individual day to other days. Outside the set times the thermostat is switched off.
Heat quantity
Constant flow
If “Constant flow” is activated as the type of heat quantity metering, the approximate heat from the manually entered values for
antifreeze, its concentration and the flow from the system and the measured sensor values from the collector and storage are cal-
culated. Additional information about antifreeze, its concentration and the flow of the system is required. Additionally through the
setting offset ∆T, a correction factor can be set for the heat quantity collection. Since the collector temperature and the storage tem-
perature can be used for the heat quantity metering, depending on the system, there may be deviations from the displayed col-
lected temperature to the actual previous temperature or the displayed storage temperature to the actual return temperature.
Through the setting Offset ∆T, this deviation can be corrected.
Example: displayed collector temperature 40°C, read previous temperature 39°C, displayed storage temperature 30°C, read
return temperature 31° means a setting of -20% (displayed ∆T 10K, actual ∆T 8K => -20% correction value)
The heat quantity data in the “Constant flow” mode only consists of calculated values for the functional inspection of
the system.
Flow temperature sensor (X)
In this menu, it is set which sensor is used to measure the return flow temperature.
Return flow sensor
In this menu, you can set which sensor is used to measure the return flow temperature.
Glycol type
In this menu, the antifreeze used is set. If none is used, please set glycol proportion to 0.
Glycol percentage
The percentage of antifreeze in the medium.
Flow rate supply flow (X)
Nominal system flow.
The flow of the system in liters per minute, which is used as calculation basis for heat metering.
Offset ∆T
Correction factor for the temperature difference for heat metering
Since the collector temperature and the storage temperature can be used for the heat quantity metering, depending on the sys-
tem, there may be deviations from the displayed collected temperature to the actual previous temperature or the displayed stor-
age temperature to the actual return temperature. This deviation can be corrected with the adjustment value Offset ΔT
Example: displayed collector temperature 40°C, read previous temperature 39°C, displayed storage temperature 30°C, read
return temperature 31° means a setting of -20% (displayed ∆T 10K, actual ∆T 8K => -20% correction value)
VFS (X)
The type used of direct sensor is set in this menu.
VFS - Position
This menu is used to set whether the direct sensor was mounted in supply or return flow.
To prevent damage to the Vortex Flow sensor it is highly recommended to place it in the return flow. If contrary to this
recommendation it is used in the supply line, the maximum temperature has to be considered. (0 ° C to 100 ° C con-
tinuous operation and short term -25 ° C to 120 ° C)
Reference sensor
The sensor to be used for heat metering is set here.
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