EVCO EPU2BXP1S1 - Manual (Page 50)

EVCO S.p.A. c-pro 3 micro SAVE/ c-pro 3 kilo SAVE | Application Manual ver. 1.0 | Code 144CP3UKSAE104
EVCO
page 50 of 68
After the (parameter Pr03) delay the by-pass damper is activated to allow defrosting. As soon as the exhaust air
temperature is back above the accepted value the damper is deactivated and the recovery heat exchanger starts
again.
Note: If the anti-freeze probe is in alarm condition the function is disabled.
6.8 Features of the COMPLETE control solution
Al functions of the COMPACT version are included in this version.
Below are listed only the additional features of the COMPLETE control solution.
6.8.1 Post-Ventilation
By setting the parameter PG05=1 it is possible to decide whether to run the fans for a time configured on parameter
PF11, also after unit switch-OFF. If the function is active when the unit stops the fans keep working for further PF11
seconds.
6.8.2 Differential pressure switch
The lack of air flow is signalled via the DI5 Differential Pressure switch digital input. The pressure switch status is
considered after the initial start-up phase of the unit (the length of this phase is configured by parameter PA06). On
expiry of this time if the contact signals a lack of air flow the alarm is signalled immediately. During normal working
the differential pressure switch is monitored continuously. If the contact signals a lack of flow for a period exceeding
the PA06 parameter, the alarm is signalled immediately.
To enable the alarm, set PA05=1.
The differential pressure switch alarm has manual reset. Activation leads to switch-off of the unit taking it into the OFF
due to alarm status.
Unit
ON
OFF
Air Flow
ON
ON
Alarm
PA0 PA0 PA0