EVCO EPK4BHQ1AH Installer manual - Manual (Page 69)

EVCO S.p.A. c-pro 3 NODE kilo AHU | Application manual ver. 1.0
page 69 of 114
SEtH: Set
OFF
T. room
PF02:
ON
WINTER operating mode
6.10.4 Modulating regulation
Generally controlled by an inverter, it carries out a refined heating function: “winter operating mode” or cooling
function: “summer operating mode”. This control mode is focused on saving energy.
The variable fan speed is controlled by the room temperature sensor. The control set point (SEtC, SEtH) and the
proportional band (PF02) needs to be defined, see also the figures below. In order to enable this control select
PF01=3.
Alternatively the variable fan speed can be controlled by the discharge air temperature sensor (PF07).
Each mode of operation (summer/winter) has its own distinct control.
SUMMER operating mode WINTER operating mode
The fan speed is identical for both flow and return fans.
SEtH: Set
PF03: Min.
T. room
PF02:
PF04: Max.
Fan Speed
SEtC (SEtH): Set
PF03: Min.
T. room
PF02:
PF04: Max.
Fan Speed