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The following graph shows how this function works:
P50.09
ON
OFF
Dehumidification therefore remains enabled for a time equal to the "Max DH time" parameter (expressed in minutes). When this
time elapses the compressor is disabled for a time equal to the "Max waiting time" parameter (expressed in minutes) and then
compressor operation is enabled once again.
The parameters used to configure this function are under the "Safety" menu, which can be accessed by entering the "Factory"
password.
For the default values, see the parameters table.
8.2.7
Post - heating
If heating resources are present it is possible to enable them for post-heating, that is, heating the air after it crosses the cooling
coil. This makes it possible to avoid prematurely interrupting the dehumidification function to reach the previously described
lower limit.
For this purpose, the activation of the heating resources must not be distributed inside the heating differential band as it would
be expected for heating as, in this case, maximum heating power would occur simultaneously with dehumidification disabling.
Therefore, the heating power must be distributed over an ambient temperature band, so that the maximum heating power occurs
at a value that is not only higher than the previously indicated lower limit, but also relatively distant from the same.
This allows the heat resources, after being enabled, to effectively change the ambient air temperature before it reaches the
lower dehumidification limit. This is particularly important in small environments, where the activation of the dehumidification
causes a quick decrease of the temperature.
As a result, the post-heating resources are enabled in sequence on the first half of the heating band, as shown in the following
figures.
The heat resources available for post-heating can be the electric heaters.
Version 38
P14.11
P14.12
Figure 8-7: timed dehumidification adjustment graph.
P14.11= Maxi m um dehumidification cycle ON time
P14.12= Minimum delay for new dehumidification cycle
T
(°C)
ambien t
Compressor
Time (min)
150
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