EVCO EPH4DXP1SA - Manual (Page 27)

EVCO S.p.A. c-pro 3 hecto MCSA | User manual ver. 2.0 | Code 144MCSAE204
page 27 of 52
Flow/return probe alarm
The machine operates normally when the alarm conditions have been restored.
4.3 Summer/winter operating mode
There are several procedures that allow to set the operating mode of the MCSA module depending on the configuration
parameters.
Via the Mode parameter in the User menu
Setting – Position on the Mode parameter and, pressing the ENTER key, modify the values using the UP and DOWN
keys. Confirm by pressing ENTER again.
Via supervising protocol
Setting – Send the operational mode change control from protocol, via the relative status.
Using the Summer/Winter from digital input control
Setting - With contact open the unit is in winter” operating mode, with contact closed in “summer” operating mode.
This control has priority with respect to the supervision protocol control.
Using summer/winter switch-over function
Setting – Switch-over from summer to winter takes place when the external temperature remains below the value
established with parameter PC11 (Winter automatic switch-over threshold) for the time period established with PC13
(Summer/Winter automatic switch-over delay).
Vice versa, switch-over from winter to summer takes place when the external temperature remains below the value
established with parameter PC12 (Summer automatic switch-over threshold) for the time period established with PC13
(Summer/Winter automatic switch-over delay).
This control has priority with respect to the digital input control.