The control sequence can be set via P02.

The following sequences can be activated in the thermostat.

The available sequences depend on the application (selected via P01, see Control parameters).


P02 = 1

P02 = 2

P02 = 3

P02 = 4

P02 = 5


Available for basic application

Heating only

Cooling only

H/C changeover auto via external water temperature sensor or remote switch

Manually select heating or cooling sequence (using HMI)

Heating and cooling sequence, 4-pipe


2-pipe with electric heater







1) For manual changeover with 4-pipe applications, see 4-pipe fan coil unit.

  • 4-pipe manual changeover (P02 = 4) means activating either cooling or heating outputs