Basic Documentation

Functions
Room temperature setpoint
4
20 | 66
A6V12114068_en--_c
Example
2-pipe heating OR cooling
4-pipe heating AND cooling
P09 < P10
Cooling setpoint adjustable: 18…25 °C
Heating setpoint adjustable: 18…25 °C
Cooling setpoint adjustable: 18…25 °C
Heating setpoint adjustable: 18…25 °C
P09 ≥ P10
Cooling setpoint adjustable: 25…35 °C
Heating setpoint adjustable: 5…21 °C
Use control parameters P11 and P12 to adjust Economy setpoints.
The heating setpoint is 15 °C (factory setting), and cooling setpoint is 30 °C.
Use P65 and P66 to adjust the Protection mode setpoints.
The heating setpoint is 8 °C (frost protection, factory setting) and OFF for cooling.
CAUTION
If a setpoint (Economy or Protection) is set to OFF, the thermostat does not
control the room temperature in the corresponding mode (heating or cooling). As
a result, there is no protective heating or cooling function and thus risk of frost
during heating or risk of overtemperature during cooling!
The Economy setpoints (P11, P12) can be accessed at the Service level;
Protection setpoints (P65, P66) at the Expert level.
4.3.2 Setting and adjusting setpoints
Room temperature setpoints can be:
● Set during commissioning
● Adjusted during runtime
The source can be one of the following:
● Local HMI
● Modbus commissioning tool
● Modbus master device
The thermostat saves the setpoints to
● EEPROM in the form of parameters
The figure below shows the interrelation:
Economy mode
Protection mode
Room temperature:
Comfort setpoint