34 User Manual
DOL 534 • DOL 539
Selection of humidity control principle
Higher heat consumption
Maintains the set humidity
Increases ventilation. The humidity is
ventilated out of the house.
When the temperature drops, the heat
is increased in order to maintain the
inside temperature.
Heating consumption drops
Possible to regulate humidity without heat
Does not maintain the set humidity
The animals must be able to tolerate the
temperature drop at high humidity.
The inside temperature that is
controlled as it is reduced so that
ventilation can be increased.
Highest heat consumption
Maintains the set humidity
Increases heat supply.
Humidity and heat are removed
through ventilation when the
temperature gets too high.
3.3.2.1 Humidity Ventilation
This function is not active in Combi-Tunnel houses, when they are ventilated according to the Tunnel principle.
When DOL 53X is set up to control humidity according to the principle of humidity ventilation, it will reduce a
too high humidity level by increasing ventilation gradually. The increased air change will make the inside
temperature fall. To maintain the temperature of heating temperature, the heating system will gradually supply
more heating.
Humidity ventilation makes it possible to keep the house air humidity on the set humidity.
Example 12: Humidity ventilation
(Setup menu:
Max. humidity ventilation.
35 %)
3.3.2.2 Temperature Reduction
DOL 53X can control the house humidity according to the humidity control principle with temperature
reduction when the animals can tolerate a temperature drop at high air humidity. This function limits the use of
heating in the house but cannot keep the air humidity at the humidity setpoint.
NB In your daily work, you should only adjust humidity via Humidity setpoint.
3.3.2.2.1 Temperature Reduction with Heat Supply
When DOL 53X has been set up to control humidity according to the temperature reduction principle, the
controller will adjust a too high humidity level by reducing the inside temperature by a few degrees
(Reduction).
At a lower temperature setting, DOL 53X will thus increase ventilation and consequently the change of air.
When this has made the inside temperature drop, ventilation will decrease to minimum ventilation in order to
limit the heat loss from the ventilation.
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