EVCO c-pro nano CHIL - Manual (Page 109)

C-PRO NANO CHIL AND C-PRO MICRO CHIL – APPLICATION MANUAL
Pag. 109
- PF15 = Summer maximum speed forcing differential (Y)
- PF26 = Inverter forcing minimum value
- PF27 = Speed-up time
- PF31 = Fan low-speed limit
- PF32 = Fan high-speed limit
- PF33 = Fan regulation enable below set point
- PF34 = Fan switching OFF differential below set point (X)
The following figure illustrates the behaviour of continuous regulation in the case of winter
operation (heat pump). In this particular regulation, the proportional band is completely shifted
below the set point.
- Mode = Operating mode (1 = Winter)
- PF21 = Winter condensation regulation set point (SP)
- PF22 = Winter condensation regulation differential
- PF23 = Winter maximum speed forcing enable
- PF24 = Winter maximum speed forcing set point (SPF)
- PF25 = Winter maximum speed forcing differential (Y)
- PF26 = Inverter forcing minimum value
- PF27 = Speed-up time
- PF31 = Fan low-speed limit
- PF32 = Fan high-speed limit
- PF33 = Fan regulation enable above set point
- PF34 = Fan switching OFF differential above set point (X)
In order to select this regulation, it is also necessary to set the parameters associated with the
analogue outputs of condensing fans:
- HF31: Position of condensing fan analogue output, Circuit # 1
Pressure
Speed
SP SP + X SP - diff
Low speed
High
speed
Max.
speed
SPF
SPF + Y