The grey
side of the 
ECL Card
Extended service
Service parameter(s) 20-21
32e
20  Optimization based on room / outdoor temperature
Circuit
Setting range Factory setting
(I) / (II)
ON / OFF (OFF) / (OFF)
The optimized start and stop time can be based on either room or 
outdoor temperature.
ON:   Optimization based on room temperature, if 
measured.
OFF:   Optimization based on outdoor 
temperature. Use this setting if the room 
temperature is not measured.
21  Total stop
Circuit Setting range Factory setting
I / (II) ON / OFF OFF / (OFF)
Decide whether you want a total stop during the setback 
temperature period.
ON:   The desired flow temperature is lowered 
to 10 °C. The min. setting of the flow 
temperature (line 2, section 22) is overruled.
                    Desired flow 
                    temp. (°C)
   
                    10 °C
            Time
OFF:  No total stop
                    Desired flow 
                    temp. (°C)
                    10 °C
            Time