EVCO EPK4BHQ1AH Installer manual - Manual (Page 83)

EVCO S.p.A. c-pro 3 NODE kilo AHU | Application manual ver. 1.0
page 83 of 114
6.15.3 Step of modulating humidifier with On / Off
To use the modulating humidifier humidifier to associate an analog output (parameters HC). E 'can also be configured
to be used as a digital output relay enabling the humidifier.
In opening the output remains at 0% as long as the request does not become greater than the parameter PU16, then
takes the value of the request. In closing, the output takes the value of the request until it is greater than PU16, then
is maintained at a value of up to PU16 that the request does not go to 0%.
6.15.4 Maximum humidification control
A maximum humidity sensor can be connected to the controller to prevent against excessive humidity in the flow duct.
In case the discharge air humidity exceeds the maximum humidity set point (PU14), the humidification is switched off.
In case the discharge air humidity becomes less than the maximum humidity set point – hysteresis maximum humidity
(PU15), the humidifier is enabled again
Note 1: to use this function it is necessary to enable the maximum setting parameter for discharging the air humidity
control PU13 to 1.
Note 2: in order to utilize this function it is necessary to enable the discharge air humidity sensor, setting parameter
PH47 to 1. When the sensor is in error the maximum humidification control is disabled.
setPointHR
0%
UR%
diffHR
100%
NZ
Min