Zehnder IRS Manual De Instrucciones página 37

Press P1 or P2 briefly to activate/deactivate programme P1 or P2. Symbol P1
or P2 is displayed on the screen to indicate it has been activated.
A frame appears around symbol P1 or P2 when the programme start time is
reached and it continues to be displayed throughout the duration of the programme.
To suspend the programme while it is in progress, press P1 or P2 briefly.
The frame around symbol P1 or P2 will disappear. The programme will continue to be
repeated as usual over the following days.
P1 activated P1 non activated
EN
Use 37