Technical data

Ichill 200CX EVO rev 1.1 14/11/2013
Pag. 85 of 151
Winter operation mode:
If the machine is switched on and external temperature or condenser temperature/pressure is inside the
differential:
• machine in chiller and temperature/pressure inside the differential dF29: exchanger 2 ON
• machine in chiller and temperature/pressure inside the differential dF30: exchanger 1 and exchanger
2 ON
• machine in heat pump and temperature/pressure inside the differential dF33: exchanger 2 ON
• machine in heat pump and temperature/pressure inside the differential dF34: exchanger 1 and
exchanger 2 ON
In chiller when first compressor starts both exchangers are ON for dF36 time; after this time the regulation
follows diagrams above.
If dF36=0 the regulation follows diagrams above also at the start up.
In defrost this regulation is disabled.
In STD-BY or remote OFF the status of the exchangers is hybrid exchanger 1=ON, hybrid exchanger
2=OFF.
The set point is related to the status of the machine:
• if the machine is producing cooled water and domestic hot water, reference set point is chiller set
point
• if the machine is producing only domestic hot water, reference set point is heat pump set point
43. GEOTHERMAL FREE COOLING
Outputs managed: