Question
How do I work with +Active Air fan ?
Answer
The fan must run at a minimum speed of 40%.
The Active Air fan is used in the following situations:
In the example above the fan speed is from 40 to 100% when the greenhouse temperature is from 21 (= 20 +1) to 27 (= 20 + 1 + 6) °C.
In this case we first try to cool the greenhouse by using the outside air valve and after that by using the fans.