User manual
1592022700 User manual iCHILL 200CX  Rel. 1.0 22/04/2009 
CO 20   
Operative mode of the condenser pump 
0= Not enabled 
1= ON/OFF: continuous operation type 1 
When the unit is running in Chiller or Heat Pump the pump is running. In std-by 
or remote OFF mode, the pump is OFF. 
2= ON/OFF: on if called by compressor 
When a compressor is running, the pump is running. 
3= ON/OFF: continuous operation type 2 
When  the  unit  is  running  in  Chiller or Heat Pump  or  in  STD-By  or  in  OFF,  the 
pump is running. 
4= Modulation: continuous operation type 1 
When the unit is running in Chiller or Heat Pump the pump is running. In std-by 
or remote OFF mode, the pump is OFF. 
5= Modulation: on if called by compressor 
When a compressor is running, the pump is running. 
6= Modulation: continuous operation type 2 
When  the  unit  is  running  in  Chiller or Heat Pump  or  in  STD-By  or  in  OFF,  the 
pump is running. 
0  6     
CO 21   
Delay time to switch off the pump starting from compressor deactivation or when 
the unit is placed in std-by 
0  250  Min   
CO 22   
Number of running hours for condenser pump rotation  0  999  10Hr  10Hr 
CO 23   
Contemporary working time of the pumps during rotation  0  250  Sec   
Load maintenance 
CO 24   
Compressor 1: number of working hour to signalling maintenance warning  0  999  10 Hr  10 Hr 
CO 25   
Compressor 2: number of working hour to signalling maintenance warning  0  999  10 Hr  10 Hr 
CO 26   
Evaporator pump / supply fan: number of working hour to signalling maintenance 
warning 
0  999  10 Hr  10 Hr 
CO 27   
Support  evaporator  pump  /  supply fan:  number  of  working  hour  to  signalling 
maintenance warning 
0  999  10 Hr  10 Hr 
CO 28   
Condenser pump: number of working hour to signalling maintenance warning  0  999  10 Hr  10 Hr 
CO 29   
Support  condenser  pump:  number  of  working  hour  to  signalling  maintenance 
warning 
0  999  10 Hr  10 Hr 
Pump down 
CO 30   
Pump down operating mode (See pump down ON/OFF function) 
0= Not enabled 
1= Pump down enabled only during the switching off 
2= Pump down enabled during the switching off and switching on 
3= in Chiller mode pump down enabled only during the switching off 
4= in Chiller mode pump down enabled during the switching off and switching on 
0  4     
CO 31   
Pump–down pressure setpoint (See pump down ON/OFF function)  0 
0 
50.0 
725 
Bar 
psi 
Dec 
int 
CO 32   
Pump-down pressure differential (See pump down ON/OFF function)  0 
0 
14.0 
203 
Bar 
psi 
Dec 
int 
CO 33   
Maximum pump–down  time duration  at start-up and stop  (See  pump down 
ON/OFF function) 
0  250  Sec   
Evaporator Unloading 
CO 34   
Unloading compressor setpoint in chiller to prevent high temperature of the 
evaporator water inlet (See unloading function). 
-50 
-58 
70.0 
158 
°C 
°F 
Dec 
int 
CO 35   
Unloading Differential. From high temperature of the evaporator water inlet (See 
unloading function). 
0.1 
1 
25.0 
45 
°C 
°F 
Dec 
int 
CO 36   
Delay time to  engage the Unloading function from high temperature of the 
evaporator water inlet (See unloading function). 
0  250  Sec  10sec 
CO 37   
Maximum unloading duration time to keep activated the Unloading function from 
high temperature of the evaporator water inlet (See unloading function). 
0  250  Min   
CO 38   
Unloading compressor setpoint in  chiller to  prevent low  temperature of  the 
evaporator water inlet (See unloading function). 
-50 
-58 
70.0 
158 
°C 
°F 
Dec 
int 
CO 39   
Unloading Differential  to  prevent  low  temperature of  the  evaporator  water inlet 
(See unloading function). 
0.1 
1 
25.0 
45 
°C 
°F 
Dec 
int 
CO 40   
Maximum unloading duration time to keep activated the Unloading function from 
low temperature of the evaporator water inlet (See unloading function). 
0  250  Min   
Condenser Unloading 
CO 41   
Unloading  compressor  setpoint.  From  temperature  /  pressure  in  chiller  mode 
(See unloading function). 
0 
0 
50.0 
725 
Bar 
psi 
Dec 
int 
CO 42   
Unloading  Differential.  From  temperature  /  pressure  in  chiller  mode  (See 
unloading function). 
0.0 
0 
14.0 
203 
Bar 
Psi 
Dec 
int 
CO 43   
Unloading compressor setpoint. From temperature / pressure in HP mode (See 
unloading function). 
0 
0 
50.0 
725 
Bar 
psi 
Dec 
int 
CO 44   
Unloading Differential. From temperature / pressure in HP mode (See unloading 
function). 
0.0 
0 
14.0 
203 
Bar 
Psi 
Dec 
int 
CO 45   
Maximum unloading duration time from temperature/pressure control.  0  250  Min   
CO 46   
Number of steps for circuit with active unloading 
1= 1
st
 step 
2= 2
nd
 step 
3= 3
rd
 step 
1  3     










