EN - How to work with +Active Air heating

Question

How do I work with +Active Air heating?

 Answer 

The Active Air heating is used in the following situations:

The computed temperature of the heating element is between the minimum and maximum temperature.

The pump is switched on when the computed temperature is higher than "temperature pump on".

When the outside air temperature is lower than the "frost protection threshold" then the temperature of the element is controlled on 10 °C in the example above.

The heating element can be used in 2 different situations:

1. To control the air temperature into the tube
   
2. As heating circuit like a rail pipe circuit or a grow pipe circuit to control the greenhouse temperature
   

1. To control the air temperature into the tube

The setpoint of the air temperature into the tube. 

The air temperature into the tube is linked to the computed heating temperature.

2. As heating circuit like a rail pipe circuit or a grow pipe circuit to control the greenhouse temperature

The heating element is now starting later than the rail pipe or grow pipe.

If you only want to control the inlet temperature (Unit), the above I actions must be set to 0.

Otherwise the temperature precontrol is influenced by the difference between the greenhouse temperature and the set heating temperature.

• Related Articles

• EN - How to work with +Active Air valve

  Question How do I work with +Active Air valve?  Answer  The Active Air valve is used in the following situations: In the example above the valve is opened from 0 to 100% when the greenhouse temperature is from 20 to 22 (=20 + 2) °C. With the ...

• EN - How to work with +Active Air fan

  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 ...

• EN - How to work with +Active Air cooling

  Question How do I work with +Active Air cooling?  Answer  The pad wall can be controlled in 5 stages by the cooling program. In the example above the cooling is starting when the greenhouse temperature is higher than 22 °C. With the influence ...

• EN - How to work with +Active Air in a (semi) closed greenhouse

       Question How to work with +Active Air in a (semi) closed greenhouse?  Answer  The climate settings: The standard settings ventilation temperature leeside and windside are set to 35 °C and are hidden. Cooling 1 can be a pad wall and cooling 2 can ...

• EN - How to work with +Active Air overpressure

  Question How do I work with +Active Air overpressure?  Answer  The Active Air overpressure is used in the following situations: In these situations the maximum overpressure is 15 Pa (in practice between 10 and 15). During recirculation a minimum ...