EVCO EPU2BXP1S1 - Manual (Page 46)

EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
page 46 of 68
6.7 Functionality of the COMPACT control solution
This control solution offers the base functionality present also in the "complete" solution.
6.7.1 Supply and return fans
The program manages two fans, supply and return. For the two fans is expected to ON / OFF control with three steps
or analog output. . The working is the same for both fan except for the case of Recovery heat exchanger antifreeze
protection and in function with two pressure probes.
The adjustment is based on the parameter distinct PF01, which distinguishes a manual adjustment with automatic and
automatic sensor signal is likely:
•
PF01=0 manual regulation
• PF01=1 automatic regulation without presence sensor
• PF01=2 automatic regulation with presence sensor
•
PF01=3 automatic regulation with CO2 sensor
La regolazione può controllare direttamente la velocità dei ventilatori (PF00=0), oppure controllare la portata dei
ventilatori (PF01=1).
If the speed is controlled all the configuration parameters will modify directly the speed of the fans
(PF02/PF03/PF04/PF05/PF12/PF13) with a choice V1/V2/V3. Instead in the case of flow control these parameters will
be to choose the setpoint adjustment V1/V2/V3 pressostativa (PF33/PF34/PF35).
In ON/OFF regulation (parameter PG10=0) the 3 speeds (V1, V2, V3) are activated each by a dedicated relay.
In regulation with speed variator inverter (parameter PG10=1) the three speeds are determined by the value defined
by the parameters PF21, PF22 and PF23, or it can run in the complete control of the ramp (see the sections on
Regulations).
6.7.1.1 Manual regulation
The fans work at the MANUAL Speed/capacity set via the PF02 parameter.
6.7.1.2 Automatic regulation without presence sensor
Two time periods are defined: ECONOMY time band and COMFORT time band. A working speed is defined for each
time period, respectively ECONOMY Speed/capacity (parameter PF04) and COMFORT Speed/capacity (parameter
PF03). The fans are controlled at the Speed/capacity defined in the relevant time periods. The following parameters
must be used
•
PT01: start of COMFORT time band.
• PF03: fans Speed/capacity in COMFORT band.
• PT02: start of ECONOMY time band.
• PF04: fans Speed/capacity in ECONOMY band.
For each day of the week it is possible to define whether this day is a working or non-working day, parameters
PT11=Sunday, PT12, PT13, PT14, PT15, PT16, PT17):
- Working days: the regulation is the normal automatic type for ECONOMY e COMFORT time period;
- Non-working days: the Speed/capacity are determined by parameter PF13, due to defect V0.
Note: If the RTC system clock is in alarm condition it is possible to set the PF05 parameter to determine at which
speed both fans must function.