Technical data
 Ichill 200CX EVO  rev 1.1  14/11/2013 
Pag. 66 of 151 
37. AUXILIARY RELAYS 
Par. uS01 configuration auxiliary relay 1 
Par. uS05 configuration auxiliary relay 2 
0 = Not enabled 
1 = Function enabled, direct action, also if the Ichill is in stand-by or remote off. 
2 = Function enabled, direct action, only if the Ichill is on in chiller or heat pump (not in stand-by or remote 
off) 
3 = Function enabled, inverse action, also if the Ichill is in stand-by or remote off 
4 = Function enabled, inverse action, only if the Ichill is on in chiller or heat pump (not in stand-by or remote 
off). 
To configure the regulation of the auxiliary relay, please refer to uS parameters. 
Auxiliary relay with direct action 
Auxiliary relay with inverse action 
US 1   Auxiliary relay 1 operating mode 
0= Not enabled 
1= Always available with direct action 
2= Available only when the unit is on with direct action 
3= Always available with reverse action 
4= Available only when the unit is on with reverse action 
0 4     
US 2   Analog input configuration for auxiliary relay 1 control. Allows to select which probe value 
Pb1..Pb10 controls the relay 
1 10     
US 3  
Auxiliary relay 1 summer minimum set point 
-30.0 
-22 
0.0 
0 
US5 
°C 
°F 
Bar 
Psi 
Dec 
int 
Dec 
int 
US 4  
Auxiliary relay 1 summer maximum set point 
US5 
70.0 
158 
50.0 
725 
°C 
°F 
Bar 
Psi 
Dec 
int 
Dec 
int 
US 5  
Auxiliary relay 1 summer set point 
US3 US4 
°C 
°F 
Bar 
Psi 
Dec 
int 
Dec 
int 










