Energy hold off: In energy saving mode, the room temperature is reduced to building protection level, i.e. eitherthe heating setpoint is significantly reduced or the cooling setpoint is significantly increased, forinstance in a room with an open window.
Stand-by: The room temperature is reduced to stand-by level, i.e. either the heating setpoint is slightlyreduced or the cooling setpoint is slightly increased, for instance in a room that is temporarilyunoccupied.
Frost: The frost protection function is activated if the actual room temperature falls below 10°C.
Boost: The room can be ventilated with the maximum volume flow (max) or heated up with themaximum capacity.
Supply air temperature limiter: An optional mounted sensor allows to control the supply air temperature to a maximum of 50°C.
Vmax at heating: For electrical reheaters the air volume at the heating condition can optionally be increased.
Output mode: The do3 output mode can be set accordingly to the application to
– stage for one-stage electrical reheater or on/off radiator valve
– binary for two-stage electrical reheaters (stage I: ¹/₃, stage II: ²/₃) which will be ¹/₃, ²/₃, ³/₃
Soft start (Roll-out feature): The build-in start-up and roll-out of the stage control provides temperature excess protection. This helps to avoid service calls due to switched-off safety chains and reduces the electrical load after a power-fail.
External setpoint shift: An external DC 0...10 V signal at the analog input ai2 can be used to shift the basic setpoint 0...10 K, for instance for the summer/winter compensation.