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8.2.2
Upper limit
In the first case, the following must be observed:
Even in the absence of an upper limit the temperature increase cannot continue indefinitely, as with the increase of the room
temperature:
•
the sensible capacity of the unit increases and the latent capacity increases;
•
the relative humidity decreases (up to three percentage points for each degree).
It should also be considered that the sensible power of the unit is very often higher than that requested by the maximum ambient
thermal load.
For all the units, there is an absolute upper limit managed according to the step shown in the graph below.
Dehumidification is deactivated if room temperature exceeds the limit set out in the following formula:
The dehumidifier will restore normal operation when the room temperature value falls below the "Cooling setpoint" parameter
value.
The cooling Setpoint parameter is in the "Setpoint" menu.
The cooling differential parameter is under the "Regulations" menu, which can be accessed by entering the "Service"
password.
For the default values, see the parameters table.
Version 38
Dehumidify
ON
P50.01
2 * P20.18 Differential
Figure 8-2: upper dehumidification limit graph.
���������� ���������� = �������� ������ [��50.01] + (�������� ������������������������ [��20.18] ∗ 2)
T
(°C)
ambient
147
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