EVCO CT1SA0040101 - Manual (Page 20)

Stop leavening specifications
CT1SA0040101
Vers. 1.11
20/36
19. DEHUMIDIFICATION
This function is always active when the humidity probe is enabled. By setting parameter P32 = zero, the humidity probe
will be enabled. Dehumidification occurs by using the solenoid valve and the compressor switching on or by setting
parameter P71 = 2, when output K3 can be used to control a humidity extraction fan or a dehumidifier..
19.1. Dehumidification with compressor
This type of dehumidification is possible when parameter P71 is different from 2.
The graphs below display the management modes.
Case 1
Setpoint+zm+ist
Setpoint
Sonda Umidità
Setpoint+zm
Setpoint
P44
P29
tempo
Elettrovalvola
Compressore
On
Off
Off
On
The solenoid valve is switched on for a period of time determined by parameter P44. If within this time the humidity
probe drops below the setpoint + dead zone value, the solenoid valve will switch off and the compressor will switch on for
the ‘on’ enforced time determined by parameter P29.
If the probe drops below the setpoint + dead zone value before time P44 is over, the solenoid valve will switch off and
the compressor will switch on for the period of time determined by parameter P29.
If parameter P71 is set at 1 (output K3 does not manage the solenoid valve, only the light in the cell), dehumidification
will only require the compressor, which will be activated P44 seconds after the dehumidification request.