EVCO EPH4DXP1CT Installer manual - Manual (Page 37)

Evco S.p.A. c-pro 3 CLIMA sistema | Installer manual ver.1.1 | Code 144CP3CSE114
page 37 of 74
The machine On/Off key is the ESC key, pressed for about 2 seconds.
The remote On/Off input (when present) can be configured via the parameters:
- PH02: Enables the function
- PH34 : Sets the NC, NO logic for the digital contact
5.13.1 OFF state due to alarm
When the machine is on, a further state exists OFF due to alarm, which switches the nit and all devices off until the
alarm condition has been reset. If digital consent is missing in this state from supervisor or switch-off is requested
from key, the power plant goes into the relative OFF state. The alarms that cause this state are:
- Delivery 1 probe alarm
- Delivery 2 probe alarm
The machine works normally again when the alarm has been reset.
5.14 Summer/winter functioning mode
The operational mode can assume the following values:
E/I keyboard parameter Description
S= SUMMER Summer functioning mode
W= WINTER Winter functioning mode
There are procedures that allow to set the c-pro 3 CLIMA sistema functioning mode:
1) Via the parameter regarding S/W keyboard in the maintenance menu
Setting - Be positioned on the S/W keyboard parameter and, pressing the ENTER key, modify the value using
the UP and DOWN keys. Confirm by pressing ENTER again.
2) Via supervision protocol (function enabled by parameter PH03)
Setting - Send the operational mode change control via relative state from protocol.
This control has priority with respect to the S/W control from keyboard
3) Using the Summer/Winter from digital input control PH03
Setting - With contact open the unit is in “winter” functioning mode, with contact closed in “summer”
functioning mode.
4) Using Summer/Winter automatic switch-over function PH03
Setting - Switch-over from summer to winter takes place when the external temperature remains above the
value established with the PH05 parameter for the time established by the PH06 parameter
Conversely, switch-over from winter to summer takes place when the external temperature remains below
the value established with the PH04 parameter for the time established by the PH06 parameter
This control has priority with respect to the S/W control from digital input