Velleman VMB1TSW - Manual (Page 17)

Minimum and maximum temperature
The sensor records the minimum and maximum temperature.
These values can be examined or reset via the temperature controller (VMB1TC / VMB1TCW) or through the Velbus
link software via a PC connected to the Velbus PC interface (VMB1USB, VMB1RS of VMBRSUSB).
Differential thermostat
Using two sensors a differential thermostat can be created. When the difference in temperature between both sensors
reaches a certain value, the relay channel can be activated.
To achieve this, the first sensors must know the address of the second one. The second sensor must than be linked
to a relay channel. The temperature difference value is set on the first sensor.
Factory settings
After receiving this module, following factory default settings are already stored into the sensor:
Description Factory default
Zone number No zone
Differential sensor address None
Operating mode Heating
Unjam heating valve Disabled
Unjam heating valve circulation pump Disabled
Desired comfort temperature for heating 22°C
Desired day temperature for heating 20°C
Desired night temperature for heating 15°C
Anti-freeze safeguard 5°C
Heating limit 30°C
Temperature difference (fast heating/cooling or differential thermostat) 3°C
Calibration factor -2.5°C
Hysteresis 0.5°C
Desired comfort temperature for cooling 21°C
Desired day temperature for cooling 23°C
Desired night temperature for cooling 26°C
Lower limit cooling preset range 16°C
Upper limit cooling preset range 36°C
Low temperature alarm 3°C
High temperature alarm 30°C
Default duration temporary mode (sleep timer) 1 hour
Time interval for automatic transmission temperature Disabled
Local control Unlocked
Cycling protection delay 1 minute