The room thermostat regulates heating and/or cooling in a room via digital outputs on/off for
valves in 2 or 4 pipe installations and for 3-speed fan control. The touch screen shows the
actual operating state and is also used to access all parameters, such as setpoint, hysteresis,
fan speed etc. The unit has a built-in room temperature sensor. The change-over (between
heating and cooling at 2 pipe installation) can be controlled by selecting the mode on the
display or via a digital input connected to any potential free contact (e.g. heat pump in COOL
mode). Functions such as mould protection and automatic valve exercise ensures a proper
functionality and a problem free work over the time.
The display behaves differently depending on the mode and the state that the controller is
currently operating in. The thermostat can be in one of the following states:
• Off: Energy stop state where the controller neither heats nor cools. No background light is lit,
only the On/Off button is shown and usable.
• Occupied: Comfort (Standard) state or if a presence detector is connected and someone is in
the room. Optimal heating and cooling takes place.
• Standby: Energy saving state where reduced heating or cooling takes place.
FUNCTION
HANDLING
EN
DE
FR
ES
IT
NL
SV
NO
DK
FI
PL
CZ
HU
HR
SI
ET
LV
PT
LT