EVCO EPH4DXP1CT Installer manual - Manual (Page 38)

Evco S.p.A. c-pro 3 CLIMA sistema | Installer manual ver.1.1 | Code 144CP3CSE114
page 38 of 74
As well as selection of the operational mode, a digital output is linked to the summer/winter functioning mode, which
functions as follows:
Functioning mode State of the digital input
S= SUMMER Summer/Winter output ACTIVE
W= WINTER Summer/Winter output OFF
A typical application of the summer/winter relay is to automatically inform the chiller/heat pump unit of the system
functioning mode.
Note. For the two manual summer/winter change modes (procedures 1 and 2) it is recommended to carry out the
summer/winter change with the machine off.