Basic Documentation

Functions
Room temperature setpoint
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4.3 Room temperature setpoint
4.3.1 Description
The factory setting for the Comfort basic setpoint is 21 °C and can be changed in
the thermostat’s EEPROM via P08.
The Comfort setpoint can be adjusted via the +/- buttons.
When "Temporary comfort setpoint" is enabled via P69, the Comfort setpoint
adjusted via the + / - buttons is set back to the Comfort basic setpoint stored in P08
only when the operating mode is changed.
For energy saving purposes, the setpoint setting range can be limited to minimum
(P09) and maximum (P10).
● If the minimum limit P09 is set lower than the maximum limit P10, both heating
and cooling can be adjusted between these 2 limits.
● For heating or cooling applications (e.g. 2-stage):
– The setting range in cooling mode is P09…35 °C in place of 5…35 °C
– The setting range in heating mode is 5…P10 °C in place of 5…35 °C
● For heating and cooling applications (e.g. 4-pipe):
– The cooling and heating setpoint can be adjusted
– The setting range in cooling mode is P09…35 °C in place of 5…35 °C
– The setting range in heating mode is 5…P10 °C in place of 5…35 °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), the cooling setpoint is 30 °C.
Use P65 and P66 to adjust the Protection setpoints.
The heating setpoint is 8 °C (frost protection, factory setting) and OFF for cooling.
Comfort mode
Temporary setpoint
Setpoint limitation
P09 < P10
P09 ≥ P10
Economy mode
Protection mode