EVCO c-pro kilo AHU - Manual (Page 52)

C-PRO KILO AHU APPLICATION MANUAL
Pag. 52
6.4 Setting the RTC
When the card remains without tension for a few days, the RTC (Real Time Clock) system
clock discharges requiring it to be reset to the correct date and time while also restoring the
eventual alarm (if enabled, PA40=1). In this case, upon macchine startup the following page
will appear allowing you to set the RTC:
Once the clock has been configured press OK to update the RTC and then enter into the main
application page. Pressing OK to confirm also re-arms the clock alarm (AL28) at which
point the conditions of the alarm have been restored.
In case the alarm doesn’t disappear: apply and release tension to the card and then manually
re-arm the alarm.
Note. This function is enabled only if the paramater PG03=1, that is, if the system clock is
enabled.
6.5 Fans
The central air handling can manage the operation of two fans, one delivery fan and one
pickup fan. Both fans are regulated in the same fashion; the type of regulation is set from the
parameter PF01 (Continous Regulation, On/Off Regulation, Module Regulation, Module
Regulation with steps to enable). Deciding which fans to enable – delivery fan or pickup fan -
can be done from the Constructor Menu using the parameters PG08 e PG09, respectively.
Managing the fans occurs through a Set Point and a differential set by a parameter and the
temperature reading on the probe used to regulate the ambient temperature. Startup and
shutdown can be achieved from a thermoregulatory block and by using the parameter PF05 =
Tempo minimo tra accensione dei ventilatori (Minimum time between fan startup) you can
delay startup between the two fans in order to avoid simultaneous startup of both fans.
Near the positioning of the regulation probe it is possibile to activiate the cycles for the air
quality sensors to “sense” the correct temperature (parameter PG05 and PC05).
6.5.1 Continuous regulation and On/Off
The continous regulation is connected to the status of the central unit; the fans turn on and off
every time the machine is turned on and off. In order to set this regulation select PF01=0.
The On/Off regulation provides ability for startup/shutdown of fans operating from the
regulation Set Point (SEtC, SEtH) and from a differential (PF02) and are compared with the
ambient temperature reading, or from the pickup channel according to where the regulatory
probe is positioned. In order to set this regulation select PF01=1.
Each mode of operation (summer/winter) has its own distinct regulation.