EVCO EPK4BHQ1AH Installer manual - Manual (Page 71)

EVCO S.p.A. c-pro 3 NODE kilo AHU | Application manual ver. 1.0
page 71 of 114
6.10.6 Static Pressure control
When a discharge air static pressure is connected to the controller it is possible to control the fans based on the
discharge air static pressure. The discharge air static pressure is proportionally integral (PI) controlled.
Pa
Discharge air pressure
Fan Control Signal
PF03
PF04
Maximum speed
Minimum speed
Discharge air static
pressure setpoint
- Pb/2 + Pb/2
The discharge air static pressure set point is smoothly ramped from 0 to its target set point when the central unit is
started. The ramp time is defined by parameter PF11, static pressure control set point ramp.
PF01: control mode fans
PF03: Minimum fan speed
PF04: maximum fan speed
P11 Static pressure control set point ramp
P12 Static pressure control set point
P13: Static pressure control proportional band
P14: Static pressure control integral time
PH48: Enable Static pressure sensor
PH01: Minimum value threshold for the pressure sensor
PH02: Maximum value threshold for the pressure sensor.
The fan speed is identical for both flow and return fans.