EVCO EPU2LXP1CH Installer manual - Manual (Page 76)

EVCO S.p.A. c-pro 3 micro CHIL | Application manual ver. 1.0 | Codice 144CP3CHE104
page 76 of 120
8.19 Miscellaneous Management
8.19.1 Set point variation by schedule timer
Via parameter PH28 it is possible to adjust the setpoint by the schedule timer (set relative parameters of scheduler). Actual control
setpoint depends by the working day and relative offset.
8.19.2 Dynamic set point
Via parameter Dynamic set point enable PH27, it is possible to perform compensation of the dynamic set point on outdoor air
temperature. In this case, the control set point will take on a value between the standard set point (equivalent to the External-
temperature initial threshold) and the set point plus a Dynamic offset (equivalent to the External-temperature final threshold), both for
chiller and heat pump operation. Between the two compensation points, movement is linear, and the curve takes on a different
meaning, according to the offset sign.
With offsets of less than zero value, behavior is as follows:
The parameters referred to this function are the following:
• PC64 = Maximum dynamic offset for summer operation (chiller)
• PC65 = Compensation start temperature for dynamic summer set point
• PC66 = Compensation stop temperature for dynamic summer set point.
With offsets greater than zero, behavior is as follows:
The parameters referred to this function are the following:
• PC67 = Maximum dynamic offset for winter operation (heat pump)
• PC68 = Compensation-start temperature for dynamic winter set point
• PC69 = Compensation- stop temperature for dynamic winter set point.
SP + PC67
SP
Set Point
Outdoor T
PC68 PC69
SP
SP + PC64
Set Point
Outdoor T
PC65 PC66