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IC100CX SERVICE MANUAL                                                                                                                      

 
 

 

 Manual IC100CX GB                                                                                     

 

 

 

Page 4 di 20  

UdAy: day of the week (Sun = Sunday,  Mon  = Monday, tuE = Tuesday, UEd = 
Wednesday, tHu = Thursday, Fri = Friday, SAt = Saturday).  
dAy: day of the month(0÷31)  
MntH: Month (1÷12) 
yEAr: Year (00÷99) 

 

H

OT 

K

EY

 

P

ROGRAMMING

 

Download from the Hot Key (previously programmed) to the Instrument 
Memory 

 

The controller has to be not connected to the power supply 

 

Insert the Hot Key into dedicated connector 

 

Connect the controller to the power supply 

 

The download starts and lasts some seconds. 

During this phase the whole regulation is locked and the “dOL” message is flashing. 
“End “ message will appear if the programming result is good, after 15 sec. the 
regulation automatically restarts 
If “Err” message appears the operation has given bad result. Turn the controller off and 
then on again to repeat the operation or restart the normal regulation. 

Upload the Parameter from the Controller to the Hot Key 

The instrument has to be connected to the power supply: 
1.

 

Insert the Hot Key 

2.

 

Push “menu”  

3.

 

Select “UPL” function with the arrow keys 

4.

 

Push “SET” key. The Upload starts immediately. 

During this phase the whole regulation is locked and the “UPL” message is flashing. 
“End “ message will appear if the programming result is good, after 15s the regulation 
automatically restarts. 
If “Err” message appears the operation has given bad result.  Repeat the points 1-4 for a 
new Upload. 

P

ARAMETERS 

P

ROGRAMMING

 

“Pr1” Programming Level (User Level) 

 
How to access the “Pr1” User Level: 
1)

 

Push “SET” 

n

 

key for some seconds; the upper display shows “ALL” (first family 

of parameters).  

 and   icons are flashing. 

2)

 

Using 

o

 and n arrows scroll the other family labels. 

3)

 

Push “SET” to enter and see all the parameter belonging to that family. The display 
shows the first parameter label and its value. 

Scroll the parameter list with 

o

 and n arrows or modify the value as described in 9.4. 

“Pr2” Programming Level (Factory Level) 

Pr2” parameters level is accessible through password: 
1.

 

Enter the “Pr1” level as described in 9.1. 

2.

 

Search parameter “Pr2”; “PAS” label appears on the upper side. 

3.

 

Push “SET”:  the lower display shows “Pas” and the upper display shows “0” 
flashing. 

4.

 

Set the password using 

and keys. 

5.

 

Push SET key to confirm the value. 

How to Move a Parameter from “Pr2” Level to “Pr1”  Level 

Enter the “Pr2” level and select the parameter to move; keeping pressed “SET”  key, 
push and immediately release the n key.  
The led in lower display will light to indicate the presence of the parameter in “Pr1”.  
Then release also SET key. 
To move the parameter in “Pr2” again: keep pressed SET   key and immediately release 
the n key. The led turns off so as the parameter is not more visible in “Pr1” but just in 
“Pr2”
.   

Changing a Parameter Value 

1.

 

Access to programming mode Pr1 or Pr2 

2.

 

Select the parameter to modify 

3.

 

Push “SET” 

4.

 

Modify the value with 

and n keys 

5.

 

Push SET key again to confirm the new value; after some seconds next parameter 

will be displayed 

6.

 

Exit the programming mode: push “SET”  and 

o

 when a parameter label is 

displayed, or wait 15s (time-out) without pushing any keys. 

NOTE: The new parameter value is also confirmed if, after changing it, no SET key is 
pressed for the time-out to exit.  
ATTENTION:  

CF parameters (Configuration parameters) can be modified  
only if the controller is in OFF (digital input) or STD-BY. 

H

OW TO 

C

HANGE THE 

P

ASSWORD

 

To change the password you must know the previous value. This operation is possible 
only starting from Pr2 level. 
1)

 

Enter the Pr1 level 

2)

 

Select a family of parameters (ST, or CF, or SD,…) and push “SET” key 

3)

 

Using 

and keys select the parameter “Pr2”, then push “SET” key. The lower 

display shows “PAS” and  the upper display shows 0 flashing 

4)

 

Use 

n

 and 

o

 keys to input the active PASSWORD; push “SET” to confirm the 

value and enter to Pr2 level 

5)

 

Search “Pr2” parameter with 

n

 and 

keys 

6)

 

Push “SET” key to enter the new value (flashing) 

7)

 

Insert the new password with 

o

 and keys. 

8)

 

Push “SET” key to confirm it. 

9)

 

The upper display will flash for few seconds then, next parameter will be showed. 

10)

 

Exit the programming by pushing “SET” and o together or wait the time-out. 

S

TART 

/

 

S

TOP 

C

HILLER OR 

H

EAT 

P

UMP

 

Press   

  key for 3 seconds: 

 

the unit starts or stops the Chiller cycle if the parameter CF31 =0 

 

the unit starts or stops the Heat Pump cycle if the parameter CF31 =1 

The icon 

  flashes for 3 seconds when the controller is waiting to turn on/off. 

To move from Chiller mode to Heat Pump mode or vice versa, it is necessary to stop the 
current cycle and then restart the new (Chiller 

 STD-BY 

 Heat Pump) .   

  

Press    

 key for 3 seconds: 

 

the unit starts or stops the Heat Pump cycle if parameter CF31 =0 

 

the unit starts or stops the Chiller cycle if parameter CF31 =1 

The icon 

  flashes for 3 seconds when the controller is waiting to turn on/off. 

To move from Chiller mode to Heat Pump mode or vice versa, it is necessary to stop the 
current cycle and then restart the new (Chiller 

 STD-BY 

 Heat Pump) .   

S

TAND

-

 

B

F

UNCTION

 

When the controller is working, it is possible to switch it in std-by mode pushing  

 or 

 key. 

In stand-by is possible: 

 

Display probes value using arrow keys. 

 

Display and modify the set-point. 

 

Enter the “menu” function 

MENU

 

F

UNCTION

 

Access the “menù” to perform the following operations: 
1.

 

Display and reset the active alarms. 

2.

 

Display and reset working hours of compressors and water pumps 

3.

 

Display delay time between two defrost cycles 

4.

 

Upload the parameters map from the controller to the Hot Key (see 8.2). 

5.

 

Display/reset the alarm log. 

During the Menu operations the “menu” icon is on. 

Access to the “menu” 

Push and release the “menu” key. The ” menu” icon is on. 

Exit from the “menu” 

Push and release the “menu key or wait the time out.  
The “menu” icon disappears. 

How to Display the Alarm Events 

Enter the “menu”: 
1.

 

Use 

o

 or n keys to find “ALrM” label 

2.

 

Push and release the “SET” key.  

3.

 

Use 

o

 or n keys to scroll the alarm list. 

To exit the function “menu” push and release the “menu” key or wait the time-out. The 
“menu” icon disappears. 

How to Reset an Alarm Event 

1)

 

Enter the function “menu”. 

2)

 

Use 

o

 or 

n

 keys to find  the “ALrM” label 

3)

 

Push and release the “SET” key the lower display shows the alarm code. 

4)

 

Lower display shows the alarm code. 

Summary of Contents for iCHiLL 100CX

Page 1: ...IC100CX SERVICE MANUAL Manual IC100CX GB Page 1 di 20 iCHiLL 100CX Service Manual ...

Page 2: ...ch is activated When the pump is OFF the led is on flashing to indicate the correct status of the digital input On if at least one water pump is on On if evaporator fans are activated On if a compressor is on On flashing during the delay time for compressor activation On if open collector output is active On if the controller is on in Heat or Cool mode On in case of Low pressure alarm or High pres...

Page 3: ...r digits yellow color configurable by parameter CF43 PB1 PB2 PB3 PB4 Set point parameter value working set point real set point modified from dinamic set point Energy saving or function for units without water storage tank Hysteresis RTC Machine status the display visualizes chiller set point when the unit is on and in chiller mode heating set point when the unit is on and in heat pump mode and OF...

Page 4: ... o when a parameter label is displayed or wait 15s time out without pushing any keys NOTE The new parameter value is also confirmed if after changing it no SET key is pressed for the time out to exit ATTENTION CF parameters Configuration parameters can be modified only if the controller is in OFF digital input or STD BY HOW TO CHANGE THE PASSWORD To change the password you must know the previous v...

Page 5: ...nd upper display shows the value push SET key again when Energy Saving is enabled the lower display shows SEtS Energy saving setpoint and upper display shows the value when Dynamic Set is enabled the lower display shows SEtd dynamic set point and upper display shows the value when the function for units without water storage tank is enabled the lower display shows Setr real set point and upper dis...

Page 6: ...ferential differential chiller Par ST14 CO01 compressor working time x Par ST16 10 Compressor working time is in sec x 10 The function for units without water storage tank is compatible with Energy Saving function or with the Dynamic set point Visualization of the set point on the display Chiller with energy saving or dynamic set point enabled push SET button once SetC set point value from paramet...

Page 7: ...higher than Ar25 set point the Ar26 differential the compressors are switched on Anti freeze support heater 2 Heather ON if outside air temperature Ar21 for more than Ar23 Ar24 time regulation probe Heating set point ST04 2 or real Heating set point ST04 2 if Energy saving or Dynamic set point or function for units without water storage tank are enabled Ar23 delay time starts when outside temperat...

Page 8: ...rm A10 Compressor 2 thermal protection alarm A11 Condenser fan thermal protection alarm A12 Defrost error alarm A13 Compressor 1 maintenance warning A14 Compressor 2 maintenance warning A15 Water pump or supply air fan air air maintenance warning A16 High temperature evaporator inlet water A17 Thermal protection alarm for evaporator water pump supply fan A18 Thermal protection alarm for condenser ...

Page 9: ...tank Parameter Description Min Max Meas Resolution ST10 Chiller unit without water storage tank 0 function disabled 1 function activated 0 1 ST11 Minimum temperature Set point for outlet water in chiller mode unit without water storage tank 50 0 58 110 230 C F Dec int ST12 Maximum temperature Set point for outlet water in HP function unit without water storage tank 50 0 58 110 230 C F Dec int ST13...

Page 10: ... control 2 4 20mA for condensing pressure 3 4 20ma for Dynamic Set point 4 NTC temperature for anti freeze alarm water water 5 NTC high temperature probe of system inlet water 6 0 5V for condensing pressure 0 6 CF07 Pb4 configuration 0 Probe not enabled 1 NTC condensing control 2 Multifunction digital input 3 External air temperature 4 NTC temperature for anti freeze alarm water water 5 NTC temper...

Page 11: ...thermal protection alarm 14 Condenser flow switch alarm 15 not used 0 15 CF11 Pb4 configuration in digital input mode 0 1st compressor thermal protection 1 Condenser fan thermal protection 2 Evaporator flow switch alarm 3 Remote On off 4 Cooling Heating 5 2nd compressor thermal protection 6 2nd compressor or step request Motocondensing unit 7 End defrost 8 Energy Saving 9 Anti Freeze alarm 10 1st ...

Page 12: ...integer CF26 Pb3 Offset 12 0 21 12 0 174 12 0 21 12 0 174 C F Bar Psi Decimal Integer Decimal integer CF27 Pb4 Offset 12 0 21 12 0 21 C F Decimal integer CF28 Chiller or Heat Pump configuration 0 chiller and heat pump selected by keyboard 1 chiller and heat pump selected by digital input 2 chiller and heat pump selected by probe 3 only chiller unit 4 only heat pump unit 0 4 CF29 Automatic Changeov...

Page 13: ...pump 0 10 CF42 Switching time of reversing valve when the compressor is switched off 0 250 CF43 Default viewing of lower display of the controller 0 PB1 visualization 1 PB2 visualization 2 PB3 visualization 3 PB4 visualization 4 Real working set point set point modified from Energy Saving Dynamic set point function for units without water storage tank 5 Unit status 6 Clock 7 No visualization 8 Wok...

Page 14: ...5 C F Decimal integer ES12 Energy saving setpoint offset in heat pump 30 0 54 30 0 54 C F Decimal integer ES13 Energy saving differential in heat pump 0 1 0 25 0 45 C F Decimal integer Pr2 Password value 0 999 Compressor parameters Parameter Description Min Max Meas Resolution CO01 Minimum ON time 0 250 Sec 10Sec CO02 Minimum OFF time 0 250 Sec 10Sec CO03 ON delay time between two compressors or C...

Page 15: ...0 CO33 Minimum speed of modulating pump in operation with enabled compressor Heat Pump 30 100 CO34 Speed of modulating pump in operation with enabled compressor 30 100 CO35 Set point modulating pump in chiller mode evaporator outlet temperature 50 0 58 110 230 C F Dec int CO36 Temperature control band for the modulating pump in chiller function 0 0 0 25 0 45 C F Dec int CO37 Delay for switching of...

Page 16: ... function 30 100 Hot Start Function Parameter Description Min Max Meas Resolution FA25 Hot Start Setpoint 50 0 58 110 230 C F Decimal integer FA26 Hot Start differential 0 1 0 25 0 45 C F Decimal integer Pr2 Password 0 999 Anti freeze Heater parameters Parameter Description Min Max Meas Resolution Ar01 Minimum value of Anti Freeze Setpoint 50 0 58 Ar03 C F Decimal integer Ar02 Maximum value of Ant...

Page 17: ... 0 1 0 25 0 45 C F Dec int Anti freezer alarm in HP function Ar27 Anti freeze alarm set point in heat pump mode Ar01 Ar02 C F Dec int Ar28 Anti freeze alarm differential in heat pump mode 0 0 25 0 45 C F Dec int Evaporator water pump functioning condenser of ambient probe Ar29 Evaporator condenser water pump set point with external temperature regulation 50 0 58 110 230 C F Dec int Ar30 Evaporator...

Page 18: ...1 hour 0 16 AL03 Low pressure alarm with off compressor 0 Not enabled when compressor Off 1 Enabled when compressor Off 0 1 AL04 Water flow Supply fan thermal protection alarm delay after water pump supply air fan starting 0 250 Sec AL05 Maximum duration of the flow switch alarm before it becomes manual and blocks the water pump 0 250 Sec AL06 Water flow Supply fan thermal protection input activat...

Page 19: ...f system inlet high temperature alarm interventions per hour 0 16 AL28 Condenser water flow alarm delay time 0 250 Sec AL29 Maximum duration of the flow switch alarm before it becomes manual and blocks the water pump 0 250 Sec AL30 Minimum activation time for water flow alarm 0 250 Sec AL31 Minimum time with inactive water flow input after alarm event 0 250 Sec AL32 Condenser flow switch alarm con...

Page 20: ...ion relays Pb1 Pb2 Pb4 NTC probe or digital input Pb3 pressure trasducer Tk output for external fan speed controller MF o c out multifunction open collector output for external relay 1 4 Model with 5 internal relays and ratiometric pressure trasducer Pb3 MF ID1 MF ID2 MF ID5 multifunction digital inputs ID3 high pressure digital input ID4 low pressure digital input MF RL2 MF RL3 MF RL4 MF RL5 mult...

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