Evco c-pro 3 nano CHIL User Manual

EVCO S.p.A. c-pro 3 nano CHIL | Application manual ver. 1.0 | Code 144CP3NCHE104
page 58 of 90
8.8.2 Mono phase Fan Control
Management of mono phase control of the condensers’ fans with a digital output for each fan.
The condenser’s fan switches on when the condenser pressure exceeds the condenser setpoint + condenser pressure differential. The
condenser fan switches off when the condenser pressure drops below the condenser setpoint, also see the figure below.
Mode = Operating mode (0 = summer)
PF11 = Summer Setpoint (SP) condensation control
PF12 = Summer differential condenser control
The condenser fan switches on when the condenser pressure drops below the condenser setpoint – condenser pressure differential. The
condenser fan switches off when the pressure exceeds the condenser setpoint.
Mode = Operating mode (1 = winter)
PF21 = Winter setpoint (SP) condenser control
PF22 = Winter differential condenser control
8.8.3 Condenser Valve Control
On the water/water machine, during summer operation, the water that supplies the condensation circuit is controlled by the
condensation pressure with a valve (that can be a two-way solenoid valve or a motorised pressure valve, which performs modulation
with a 0-10 V signal generated by the control). Control of the condenser is performed in a way similar to that of fan speed. Control of
the condenser valve is the proportional integral type.
To be able to use just a proportional control you just need to set the integral time on zero (PF16=0, PF26=0). By setting an integral
time greater than zero you will get a more precise control, the integral part has the task of bringing the output rapidly, reducing the
error introduced by the saline solution proportional component (the integral component is disabled by default).
8.8.4 Single Condenser
On the dual circuit machines you can choose to use just one circuit to manage condensation. To enable dysfunction you must set
PG11=1. Condensation is done by the fan in the Circuit #1, using the maximum condensation pressure/temperature values acquired by
the respective transducers.
The analogue/digital output is always relative to Circuit #1.
Press.
Fan
PF11+ PF12 PF11
ON
PF11 = Summer Setpoint condensation
control
PF12 = Summer differential condensation
control
OFF
Press.
PF21 PF21-PF22
ON
PF21 = Winter setpoint condensation
control
PF22 = Winter differential
condensation control
OFF
Fan

Evco c-pro 3 nano CHIL Specifications

General

Brand	Evco
Model	c-pro 3 nano CHIL
Category	Controller
Language	English