EVCO c-pro kilo AHU - Manual (Page 63)

C-PRO KILO AHU APPLICATION MANUAL
Pag. 63
cooling valve opening to dehumidify in order to contrast the continous decrease in
temperature (required by the dehumidification) and rapidly returning to the desired conditions
in temperature. This action has a more immediate effect on temperature and allows for
energy savings, optimizing coil control.
When the dehumidification request is active the action limit’s objective will be to limit the
dehumidificatin in order to prevent continuously cooling the air (caused by dehumidification)
and, as a result, to always request more heat to the heating (and post-heating) coils. This
action optimizes the regulation resulting also in energy savings.
Note. If the delivery air temperature probe is in error this regulation cannot be utilized.
Example 1
Dehumidification request = 80%
Dehumidification limitation = 50%
In this condition the request for dehumidification to the coils will either be 40% or 50% of
the 80% of the effective request.
Example 2
Dehumidification request = 80%
Dehumidification limitation = 25%
In this condition the request for dehumidification to the coils will either be 60% or 25% of
the 80% of the effective request.
Example 3
Dehumidification request = 80%
Dehumidification limitation = 0%
In this condition the request for dehumidification will pass entirely to the coil.
6.10 Humidification
To adjust the comfort of the ambient it is necessary to also consider the humidity in the air
and to regulate it based on a determined Set Point desired percentage (PU01) and at a neutral
SetPoint - Delivery
Pb01
Pb01 x 2
T. Delivery
0 %
100 %
Neutral
Zone
Heating coil
Post-Heating coil
Limited action on cooling
coil for dehumidification
No
limitation
Maximum
limitation