Emerson Dixell iChill IC200D EVO Series Wiring diagram

IC200D EVO
(rel. firmware 4.3)

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INDEX
1. GENERAL WARNING..........................................................................................................4
2. ICHILL 205D/IC207D FEATURES..........................................................................................5
3. USER INTERFACE ...............................................................................................................6
4. REMOTE TERMINAL.........................................................................................................12
5. FIRST INSTALLING ...........................................................................................................13
6. PARAMETER PROGRAMMING .........................................................................................13
7. DISPLAY LAYOUT.............................................................................................................19
8. SET POINT VISUALIZATION ..............................................................................................19
9. FUNCTION MENU “ M” KEY .............................................................................................20
10. DISPLAY VISUALIZATION OF VISOGRAPH REMOTE TERMINAL..........................................26
11. HOW TO SWITCH ON / SWITCH OFF THE UNIT .................................................................51
12. SWITCH ON / SWITCH OFF THE CONDENSING UNIT BY DIGITAL INPUT .............................52
13. CHILLER / HEAT PUMP SELECTION ...................................................................................52
14. COMPRESSOR REGULATION ............................................................................................53
15. COMPRESSORS MANAGEMENT .......................................................................................56
16. COMPRESSOR INVERTER CONTROLLED............................................................................59
17. COMPRESSOR RACK ........................................................................................................63
18. COMPRESSORS WITH DIFFERENT CAPACITY POWER ........................................................ 63
19. CIRCUIT MANAGEMENT: SATURATION OR BALANCING....................................................64
20. MAXIMUM OPERATION TIME OF THE COMPRESSOR .......................................................64
21. PUMP DOWN..................................................................................................................64
22. UNLOADING....................................................................................................................66
23. SOLENOID VALVE FOR LIQUID INJECTION ........................................................................68
24. CONDENSING UNIT OPERATION ......................................................................................68
25. EVAPORATOR WATER PUMP / SUPPLY FAN (AIR/AIR UNIT).............................................70
26. WATER PUMP OF CONDENSER SIDE ................................................................................72
27. CYCLIC OPERATION OF THE WATER PUMPS .....................................................................73
28. HOT START......................................................................................................................73
29. LOAD MAINTENANCE ......................................................................................................73
30. CONDENSER FAN REGULATION........................................................................................74
31. ANTI FREEZE HEATERS, INTEGRATION HEATING OR BOILER .............................................78
32. ENERGY SAVING..............................................................................................................80
33. DYNAMIC SETPOINT........................................................................................................82

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34. AUXILIARY RELAYS ..........................................................................................................83
35. AUXILIARY PROPORTIONAL OUTPUTS .............................................................................84
36. PROBE SELECTION FOR REGULATION WITH SELECTABLE PROBE .......................................87
37. DEFROST CYCLE...............................................................................................................88
38. PRODUCTION OF DOMESTIC HOT WATER ........................................................................93
39. SOLAR PANEL MANAGEMENT ....................................................................................... 100
40. UNIT WITH HYBRID EXCHANGERS (AIR / WATER UNIT) .................................................. 101
41. GEOTHERMAL FREE COOLING........................................................................................ 103
42. HEAT RECOVERY FUNCTION .......................................................................................... 106
43. MASTER / SLAVE FUNCTION .......................................................................................... 109
44. OPERATION RELATED TO THE REAL TIME CLOCK ............................................................ 110
45. MESSAGES - ALARM CODES .......................................................................................... 110
46. MANUAL ALARM PROCEDURE....................................................................................... 129
47. ALARMS LIST................................................................................................................. 130
48. ICHILL ANALOG AND DIGITAL OUTPUT CONFIGURATION ............................................... 134
49. I/O EXPANSION ANALOG AND DIGITAL OUTPUT CONFIGURATION................................. 139
50. PARAMETERS LIST......................................................................................................... 144
51. WIRING CONNECTIONS ................................................................................................. 168
52. I/O EXPANSION CONNECTION ....................................................................................... 179
53. IEV ELECTRONIC EXPANSION VALVE CONNECTION......................................................... 181
54. I/O EXPANSION AND IEV ELECTRONIC EXPANSION VALVE CONNECTION ........................ 183
55. POWER SUPPLY FAILURE ............................................................................................... 184
56. INSTALLING AND MOUNTING........................................................................................ 185
57. ELECTRICAL CONNECTIONS............................................................................................ 188
58. ACCESSORIES ................................................................................................................ 188
59. TECHNICAL SPECIFICATIONS .......................................................................................... 190
60. INSTALLATION .............................................................................................................. 191

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1. GENERAL WARNING
1.1 PLEASE READ BEFORE USING THIS MANUAL
This manual is part of the product and should be kept near the instrument for easy and quick reference.
The instrument shall not be used for purposes different from those described hereunder. It cannot be
used as a safety device.
Check the application limits before proceeding.
Dixell Srl reserves the right to change the composition of its products, even without notice, ensuring the
same and unchanged functionality.
1.2 SAFETY PRECAUTIONS
Check the supply voltage is correct before connecting the instrument.
Do not expose to water or moisture: use the controller only within the operating limits avoiding sudden
temperature changes with high atmospheric humidity to prevent formation of condensation
Warning: disconnect all electrical connections before any kind of maintenance.
The instrument must not be opened.
In case of failure or faulty operation send the instrument back to the distributor or to “Dixell S.r.l.” (See
address) with a detailed description of the fault.
Consider the maximum current which can be applied to each relay (see Technical Data).
Ensure that the wires for probes, loads and the power supply are separated and far enough from each
other, without crossing or intertwining.
Fit the probe where it is not accessible by the end user.
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in parallel with
inductive loads could be useful.
The symbol alerts the user of non-insulated “dangerous voltage” within the product area that is
sufficiently high to constitute a risk of electric shock to persons.
The symbol alerts the user of important operating and maintenance (assistance) instructions
found in the documentation attached to the device.
1.3 PRODUCT DISPOSAL (WEEE)
With reference to Directive 2002/96/EC of the European Parliament and of the Council of 27 January
2003 and to the relative national legislation, please note that:
There lies the obligation not to dispose of electrical and electronic waste as municipal waste but
to separate the waste.
Public or private collection points must be used to dispose of the goods in accordance with local
laws. Furthermore, at the end of the product's life, it is also possible to return this to the retailer
when a new purchase is made.
This equipment may contain hazardous substances. Improper use or incorrect disposal can
have adverse effects on human health and the environment.
The symbol shown on the product or the package indicates that the product has been placed on
the market after 13 August 2005 and must be disposed of as separated waste.
Should the product be disposed of incorrectly, sanctions may be applied as stipulated in applicable local
regulations regarding waste disposal.

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2. ICHILL 205D/IC207D FEATURES
FEATURES
IC205D
IC207D
OUTPUT RELAYS
5

7

DIGITAL INPUTS
9 (free voltage)
configurable
configurable
PROBE INPUTS
4 (NTC/PTC)
configurable
configurable
3 (NTC/PTC/0..5V/4..20mA)
configurable
configurable
PROPORTIONAL OUTPUTS
2 0÷10V or PWM outputs
configurable
configurable
1 0÷10V
configurable
configurable
OTHER OUTPUTS
TTL


Output for remote keyboard


LAN


POWER SUPPLY
12 Vac/dc (+15%;-10%)


24 Vac/dc (± 10%)
opt
opt
OTHERS
Internal real time clock
opt
opt
Buzzer
opt
opt
configurable = the function is configurable by parameter
opt = optional
= default

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3. USER INTERFACE
3.1 DISPLAY AND ICONS
°C -°F
BAR-PSI
ON when a temperature or pressure is visualized
Real time clock: ON when the bottom display show the RTC
ON during the programming with time based parameter value
In function menu indicates the defrost delay counting
General alarm: blinking in case of alarm
Domestic hot water: ON when domestic hot water production is active
Vset
Dynamic Set point: ON dybnamic set point or Energy saving are active
Anti freeze heaters/ integration heating / boiler: ON if the heaters are switched ON
Water flow alarm / supply fan overload (air / air unit): blinking in case of water flow alarm or
supply fan overload alarm
Water pump: ON if at least one water pump is actives or if supply fan is active

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Condenser fan: ON if at least one condenser fan is active
ON when the compressor is active
Blinking = when a compressor activation is delayed (minimum OFF time, delay after water
pump activation, etc.)
AUX
ON when an auxiliary output is active
ON when menù button is pressed
ON if the Ichill is swithed ON in cooling or heating
FC
ON when the free cooling is active
ON in defrost
Blinking during defrost activation delay
3.2 UPPER & LOWER DISPLAY CUSTOMIZATION
It is possible to select wich probe has to be visualized on the upper & lower display.
3.3 MAIN DISPLAY (UPPER DISPLAY)
Parameter dP01
PARAMETER
VALUE
DESCRIPTION
CORRESPONDING
LABEL
0
no visualization
No label
1
evaporator water inlet temperature
Ein
2
evaporator water outlet 1 and 2 temperature
Out1 circuit 1
Out2 circuit 2
3
common evaporator water outlet temperature
Eout

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4
common condenser water inlet temperature
Cin
5
condenser 1 or condenser 2 water inlet temperature
CIn1 circuit 1
CIn2 circuit 2
6
condenser 1 or condenser 2 water outlet
Cou1 circuit 1
Cou2 circuit 2
7
common condenser water outlet
Cout
8
outlet temperature
Et
9
free cooling temperature
FCIN
10
remote terminal 1 temperature
trE1
11
remote terminal 2 temperature
trE2
12
combined defrost tempereature
dEF1 circuit 1
dEF2 circuit 2
13
domestic hot water temperature 1
SAn1
14
domestic hot water temperature 2
SAn2
15
solar panel temperature
SoLE
16
Recovery temperature
rEC
17
condenser temperature
Cdt1 circuit 1
Cdt2 circuit 2
3.4 SECONDARY DISPLAY (LOWER DISPLAY)
Parameter dP02
PARAMETER
VALUE
DESCRIPTION
CORRESPONDING
LABEL
0
no visualization
No label
1
evaporator water inlet temperature
Ein
2
evaporator water outlet 1 and 2 temperature
Out1 circuit 1
Out2 circuit 2
3
common evaporator water outlet temperature
Eout
4
common condenser water inlet temperature
Cin
5
condenser 1 or condenser 2 water inlet temperature
CIn1 circuit 1
CIn2 circuit 2
6
condenser 1 or condenser 2 water outlet
Cou1 circuit 1
Cou2 circuit 2
7
common condenser water outlet
Cout
8
outlet temperature
Et
9
free cooling temperature
FCIN
10
remote terminal 1 temperature
trE1
11
remote terminal 2 temperature
trE2

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12
combined defrost tempereature
dEF1 circuit 1
dEF2 circuit 2
13
domestic hot water temperature 1
SAn1
14
domestic hot water temperature 2
SAn2
15
solar panel temperature
SoLE
16
Recovery temperature
rEC
17
condenser temperature
Cdt1 circuit 1
Cdt2 circuit 2
18
condenser pressure
CdP1 circuit 1
CdP2 circuit 2
19
evaporator pressure
LP1 circuit 1
LP2 circuit 2
20
compressor oil pressure
21
real time clock
3.5 FORCED READ - OUT OF THE TOP AND BOTTOM DISPLAY
The dP03 parameter allows to have a pre-defined visualization.
dP03=0
The visualization is defined by parameters dP01 and dP02
dP03 = 1
Top display:
Evaporator water inlet temperature, Ein label.
Bottom display:
Evaporator 1 water outlet temperature, label Out1 or evaporator 2 water outlet temperature, label Out2
dP03 = 2
Top display:
Condenser 1 water inlet temperature, label CIn1 or Condenser 2 water inlet temperature, label CIn2
Bottom display
Condenser 1 water outlet temperature, label COu1 or condenser 2 water outlet temperature, label COu2
dP03 = 3
Top display of the circuit 1:
Condenser temperature Cdt1 / pressure CdP1 or Condenser temperature Cdt2 / pressure CdP2
Bottom display of the circuit 1
Evaporator pressure probe LP1 or Evaporator pressure probe LP2
3.6 VI622 / TI620: REMOTE TERMINAL 1 VISUALIZATION
If dP04=0 the display has the same visualization of the Ichill.
If dP04=1 upper display visualizes the temperature measured by the probe mounted in the remote terminal
1 (remote terminal must have internal temperature sensor)
3.7 VI622 / TI620: REMOTE TERMINAL 2 VISUALIZATION
If dP05=0 the display has the same visualization of the Ichill.
If dP05=1 upper display visualizes the temperature measured by the probe mounted in the remote terminal 2
(remote terminal must have internal temperature sensor)

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3.8 DISPLAY VISUALIZATION IN CONDENSIG UNIT
If the Ichill is used to control a condensing unit (CF03=1):
and a digital input has to be configured as “cooling request”; in case of cooling request the
display shows “OnC”
and a digital input has to be configured as “heating request”; in case of heating request the
display shows “OnH”
If the Ichill is used to control a condensing unit (CF03=1):
and a digital input has to be configured as “regulation request”; in case of cooling request by key
the display shows “OnC”; in STD-BY the display swows “On”, when the digital input is not active
the display shows “OFF”
and a digital input has to be configured as “regulation request”; in case of heating request by key
the display shows “OnH”; in STD-BY the display swows “On”, when the digital input is not active
the display shows “OFF”
3.9 DISPLAY VISUALIZATION IN REMOTE OFF
Digital input configured as remote ON/OFF: the active input sets the unit in OFF (even when the unit is a
condensing unit).
The upper display shows “OF.F ”, the led of the decimal point is blinking.
3.10 DISPLAY VISUALIZATION IN STD-BY
It is possible to customise the visualization of the display when the unit is in STD-BY:
Parameter dP10:
0= the display shows "STD-BY"
1= the display shows what defined by parameters dP1 and dP2
2= the display shows “OFF”
“Stby” visualization

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Probes visualization
“OFF” visualization
3.11 HOW TO READ COMPRESSOR STATUS
if a compressor is disable for maintenance the display shows:
compressor 1 disabled: label c1ds
compressor 2 disabled: label c2ds
compressor 3 disabled: label c3ds
compressor 4 disabled: label c4ds
3.12 KEY FUNCTION
KEY
ACTION
FUNCTION
Push and release
Show chiller set point SetC and heat pump SetH
Push once again
In chiller or heat pump if the Energy saving or the
Dynamic setpoint are enabled it shows the real
setpoint Setr.
Push for 3 seconds
Set point modification
During the programming: push
once
To enter parameter modification or confirm a value
Push when an alarm is showed in
menù ALrM
To reset the alarm
Push once with probe label
showed on the bottom display
(press up or down starting from
default visualization)
To read probes values of circuit 1 or circuit 2
Push once
To read probes value
Pushing once during the
programming
To change the group of parameters, to change the
parameter, to change the value of the parameter

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Push for 1 second during the
programming when the display
visualize Pr1 or Pr2 or Pr3
1 time shows the Pr2 programming level
2 times shows the Pr3 programming level
Push once
To read probes value
Pushing once during the
programming
To change the group of parameters, to change the
parameter, to change the value of the parameter
Push once
To turn ON or turn OFF the controller (in chiller or
heat pump depending from CF58 parameter)
Push once
To turn ON or turn OFF the controller (in chiller or
heat pump depending from CF58 parameter)
Push once
To enter the function Menu
Push for 3 seconds
To set the clock (controller with clock on board)
Pushing once during the
programming
To exit from a group of parameter
3.13 KEY COMBINANTION
KEY
ACTION
FUNCTION
+
Push for 3 seconds together
Enter the programming parameters
Only in Pr3 level: push SET and
DOWN key
Select the parameter level visibility Pr1 / Pr2 / Pr3
+
Push once together
Exit the programming parameters
Push 5 seconds in heat pump
mode
Manual defrost
+
Only in Pr3 programming level:
push SET and then the MENU key
In Pr3 defines if the parameter can be modified or
not in the other levels.
4. REMOTE TERMINAL
The display visualization and the button functions are the same of the Ichill, then refer to previous chapters
of the quick reference guide. VI622

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TI620
5. FIRST INSTALLING
5.1 ON BOARD CLOCK (OPTIONAL)
If giving power supply the bottom display shows “rtC” alternated with a temperature or pressure value, It is
necessary to set the internal clock.
After a power failure, clock back-up battery lasts maximum 3 or 4 days. After this period it is necessary to set
the clock again.
The internal clock is an option and it is not possible to update the instrument; it is necessary to order
the instrument already complete of this features.
5.2 REAL TIME CLOCK SETUP
1. Push MENU key for some seconds until the bottom display shows “Hour” and the top display shows its
value.
2. Push SET one time: the value is blinking
3. Use the Up and Down keys to adjust it. Push SET one time to confirm; automatically the display shows
next parameter
4. Repeat the operations 2. 3. and 4. for all the RTC parameters:
- Min: minutes (0÷60)
- 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)
6. PARAMETER PROGRAMMING
6.1 PROGRAMMING WITH THE “HOT KEY 64”
Download: how to program an instrument with a programmed “Hot Key”6.1.1
1. Power off the instrument
2. Insert the hot key already programmed (by software Wizmate or other instrument)
3. Power on the instrument
4. Automatically the parameters are downloaded
During the download the regulation is locked and the top display shows the “doL” blinking label. At the end
of the download will appear:
“End” if the programming procedure is completely OK, after 30seconds the regulation starts automatically.
“Err” if the programming procedure has found an error and the parameter have not been transferred. In this
case turn off and then on the instrument supply to repeat the operation or remove the hot key, with power
supply off, to restart the regulation.
Upload: How to program a “Hot Key” with the parameters of the instrument6.1.2
1. Power on the instrument
2. Insert the hot key
3. Enter the function Menu

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4. Select the UPL function (on the bottom display)
5. Push SET key and immediately the instrument starts transfer the parameters into the Hot key.
During the upload the regulation is locked and the top display shows the “UPL” blinking label. At the end of
the UPLOAD will appear:
“End” if the programming procedure is completely OK, after 30seconds the regulation starts automatically.
“Err” if the programming procedure has found an error and the parameter have not been transferred.
Repeat the procedure.
To exit the UPL function push the MENU key or wait the time-out (15 sec).
6.2 PROGRAMMING USING THE KEYBOARD
Through the instrument keyboard it is possible to enter the programming. In all the three accessible levels
the user can show and modify both value and visibility of the parameters. To ensure an easy navigation
through the different levels the common parameters have been named and grouped under a family name.
The three levels of programming:
Pr1 User level
Pr2 Maintenance level
Pr3 OEM level
Password default values6.2.1
Password level Pr1 = 1
Password level Pr2 = 2
Password level Pr3 = 3
Each password can be changed; the range is 0 ... 999.
Each parameter has two level: visibility and changeability. Therefore it can be configured as follow:
The parameter can be showed and changed.
The parameter can be showed but not changed.
Enter the Pr1 - Pr2 - Pr3 programming levels6.2.2
Pr1 LEVEL:
Push SET + DOWN together for 3 seconds, the top display shows the PAS label and the bottom display
shows the Pr1 label. The leds cir1/cir2 are blinking (up and down leds) to inform that you now are in PR1
programming level.
Pr2 LEVEL:
From the Pr1 level push the UP key for 2 seconds and the bottom display will show Pr2. The top display still
shows PAS.
Pr3 LEVEL:
From the Pr2 level push the UP key for 2 seconds and the bottom display will show Pr3. The top display still
shows PAS.
After selecting the level push the SET key and the top display will show the 0 blinking value where to insert
the password .
Set the password level using the UP and DOWN keys then confirm with SET key.
Dependening on the password value there will be the different level access, if the password is wrong the
instrument shows the password value again.
ATTENTION:
For all the programming levels Pr1, Pr2, Pr3 CF parametrs (configuration parameters) cannot be
changed if the instrument is switched on.
During the defrost the dF parameters can’t be programmed.
Enter the programming level Pr16.2.3
Enter Pr1 “User level ”:
1. Push SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom display
shows Pr1 labels.
2. Push SET key and the top display shows a blinking 0; pressing UP or DOWN keys insert the Pr1
password. Push SET and, if the value is correct, top display will show the first family of parameters
“ALL”. Otherwise set the password again.
3. Select a parameter group pressing DOWN or UP keys.

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4. Push SET to enter; the bottom display shows the first available parameter label while the top display
shows its value.
The user can shows and modify all the parameters belonging to this family.
Parameter status, leds and bottom display in Pr1
If the selected parameter can not be changed the leds 1 and 2 are blinking.
In Pr1 level the user can not see and change any parameter of Pr2 and Pr3.
The MENU key allows to exit from a family to reselect another without exit the Pr1 level.
To exit completely the programming push SET + UP.
Enter the programming level Pr26.2.4
Enter the Pr2 “maintenance level ”:
1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom
display shows Pr1 labels.
2. Push UP key for 2 seconds and the top display will show Pr2.
3. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr2 password. Push
SET and, if the value is correct, top display will show the first family of parameters “ALL”. Otherwise set
the password again.
4. Select a parameter family with DOWN or UP keys.
5. Push SET to enter, the bottom display shows the first available parameter label while the top display
shows its value.
The user can shows and modify all the paramters belonging to this family.
Parameter status, leds and bottom display in Pr2
Leds 1 / 2 are blinking: the parameter can not be changed.
All the leds are off: the parameter ca not be seen in Pr1 level.
Led 3 is on: the parameter can be seen in Pr1 level.
Leds 1 / 2 are blinking and led 3 is on: the parameter can be showed and changed in Pr2, showed but not
changed in Pr1.
Leds 1 / 2 / 3 are blinking: the parameter can be showed and changed in Pr2 and in Pr21.
In Pr2 level the user can not see and change any parameter of Pr3 level.
The MENU key allows to exit from a family to reselect another without exit the Pr2 level.
The MENU key allows to pass to Pr1 starting from a family label.
To exit completely the programming push SET + UP.
Enter the programming level Pr36.2.5
Enter the Pr3 “OEM level ”:

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1. Push the SET + DOWN keys together for 3 seconds. The top display shows PAS while the bottom
display shows Pr1 labels.
2. Push UP key for 2 seconds and the top display will show Pr2.
1. Push UP key again for 2 seconds and the top display will show Pr3
3. Push SET key and the top display shows a blinking 0, with UP or DOWN insert the Pr3 password. Push
SET and, if the value is correct, top display will show the first family of parameters “ALL”. Otherwise set
the password again.
4. Select a parameter family with DOWN or UP keys.
5. Push SET to enter, the bottom display shows the first available parameter label while the top display
shows its value.
The user can shows and modify all the paramters belonging to this family.
Parameter status, leds and bottom display in Pr3
Leds 1 / 2 are blinking: the parameter can not be changed.
All the leds are off: the parameter is available only in Pr3.
Led 4 on: the parameter can be changed also in Pr2.
Led 4 blinking: the parameter is visible also in Pr2 .
Leds 3 / 4 on: the parameter is available in Pr2 and in Pr1.
Leds 3 / 4 blinking: the parameter is visible in Pr1 and in Pr2.
The MENU key allows to exit from a family to reselect another without exit the Pr2 level.
The MENU key allows to pass to Pr1 starting from a family label.
To exit completely the programming push SET + UP.
How to change a parameter value6.2.6
Enter the programming
1. Push the SET + DOWN keys together for 3 seconds;
2. Select the parameter label with up and down keys;
3. Push SET to enter the parameter value;
4. Change the value with UP or DOWN keys;
5. Push “SET” to confirm, after some seconds the display shows the next parameter;
6. Exit: Push SET + UP together when a parameter label is displayed or wait 15seconds without pushing a
key.
NOTE: a new parameter value is confirmed also after the 15 seconds of timeout is expired (without pushing
SET key to confirm).
Change the Password value
6.2.7
Pr1 LEVEL
1) Enter Pr1 visibility level
2) Select a whatever parameter family.
3) Search “Pr1”label; push SET key to change the value that now is blinking.
4) Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new
value.
5) Top display blinks for some seconds and then shows the next parameter.
6) Exit the programming pushing SET + UP together or wait the timeout.

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Pr2 LEVEL
1. Enter Pr2 visibility level
2. Select a whatever parameter family
3. Search “Pr2” label; push SET key to change the value that now is blinking.
4. Use the UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new
value.
5. Top display blinks for some seconds and then shows the next parameter
6. Exit the programming pushing SET + UP together or wait the timeout.
Inside the Pr2 level it is possible to change also the Pr1 password.
Pr3 LEVEL
1. Enter Pr3 level
2. Select a whatever parameter family
3. Search “Pr3” label; push SET key to change the value that now is blinking.
4. Use UP or DOWN key to insert the NEW PASSWORD value, then push SET to confirm the new value.
5. The top display blinks for some seconds and then shows the next parameter
6. Exit the programming pushing SET + UP together or wait the timeout.
Inside the Pr3 level it is possible to change also the Pr1 and Pr2 passwords.
Move a parameter level from Pr2 to Pr16.2.8
Enter Pr2 programming level
Select the parameter and if the led # 3 is off: the parameter is available only in Pr2.
To show the parameter also in Pr1:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the led 3 should be on, the parameter is now available in Pr1.
To hide the parameter in Pr1:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the led 3 should be off, the parameter is now removed from Pr1.
Move a parameter from Pr3 to Pr2 to Pr16.2.9
Enter Pr3 programming level, here the parameter are all visible:
Select the parameter, if all the leds are off the parameter is available only in Pr3.
To show the parameter also in Pr2 and Pr1:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the leds 3 and 4 should be on, the parameter is now available also in
Pr2 / Pr1.
To show the parameter only in Pr2:
1. Keep pushed SET key;
2. Push 1 time the DOWN key and the leds 3 is off, the parameter is now available also in Pr2.
To show the parameter only in Pr3:
1. Keep pushed SET key
2. Push 1 time the DOWN key and the leds 3 and 4 are off, the parameter is now available only in Pr3.
Visibility and Parameter value locked6.2.10
To set the only visibility and lock the parameter value it is necessary enter Pr3 programming level.
Pr1 PARAMETER VISIBILITY
Enter the Pr3 level
1. Select the parameter;
2. Keep pushed the SET key;
3. Push 1 time the MENU key and the led 3 change from on to blinking: the parameter is visible in Pr1 but
can’t be changed.
Pr2 PARAMETER VISIBILITY
Enter the Pr3 level
1. Select the parameter;
2. Keep pushed the SET key;
3. Push 1 time the MENU key and the led 4 change from on to blinking the parameter is visible in Pr2 but
can’t be changed.
Leds 3 / 4 blinking: the parameter is visible in Pr1 and in Pr2 but in those levels now they can’t be
changed.

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TO SET THE ORIGINAL TAG FOR THE PARAMETER Pr1 / Pr2
1. Keep pushed the SET key;
2. Push one time the MENU key, the leds 3 / 4 turn on, the parameter can be seen and modified in Pr1 and Pr2.
Programming: digital input and output polarity6.2.11
The configuration parameters of :
Digital inputs
Digital outputs (relay)
Proportional output configured as ON/OFF
Analogue input configured as digital input
are composed by a letter and a number.
Letter can be:
o (open) = function associated to the input or output is active when the contact is open
c (close) = function associated to the input or output is active when the contact is closed
The number defines the function associated to the input or output.
Example 1:
The bottom display shows the parameter label CF36 = digital input 7 configuration:
7means that the digital input is configured as “high pressure switch of circuit 1” (see digital input
configuration)
omeans that the digital input is active for open contact, then the high pressure alarm is detected
when the digital input is open.

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7. DISPLAY LAYOUT
Pushing or key it is possible to read the valure of the probes connected to the instrument.
Every probe is identified by a label (see display visualization table).
Example:
Fig.1: upper display shows outlet 1 evaporator temperature, the lower display shows Out1.
Pressing SET key is possible to read the same probe of the second circuit (if configured).
Fig.1
Fig.2: upper display shows outlet 2 evaporator temperature, the lower display shows Out2.
Pressing SET key is possible to read the same probe of the first circuit.
Fig.2
8. SET POINT VISUALIZATION
8.1 READ SET POINT VALUE
Push and release the SET key, the leds of the circuits are off and the set value is displayed.
In stand-by the bottom display shows SetC (set chiller), by pushing SET again the next label is SetH (set
heat pump ).
If the unit is running the only set displayed is related to the running mode.
8.2 MODIFY THE SET POINT
1) Push SET key for at least 3 seconds: the leds of the circuits are off and the set value is blinking.
2) Use the UP or DOWN key to modify the setpoint.
3) Push SET to confirm or wait the timeout (15seconds).

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8.3 READ REAL SETPOINT DURING ENERGY SAVING OR DYNAMIC SETPOINT
Chiller mode: push SET one time, the bottom display shows the SEtC (set chiller) while the top display
shows the set value. Only if the Energy saving or the Dynamic Setpoint are active, pushing another time the
SET key, the bottom display shows “SEtr” (real setpoint), and the top display shows the setpoint that the
unit is really using for the thermoregulation.
Chiller mode: push SET one time, the bottom display shows the SEtH (set Heat pump) while the top display
shows the set value. Only if the Energy saving or the Dynamic Setpoint are active, pushing another time the
SET key, the bottom display shows “SEtr” (real setpoint), and the top diplay shows the setpoint that the unit
is really using for the thermoregulation.
SEtr label appears only if the Energy saving or the Dynamic Setpoint are active.
8.4 HOW TO VISUALIZE DISABLED COMPRESSORS
If a compressor is disabled the lower display visualizes a label:
compressor 1 disabled: label c1ds
compressor 2 disabled: label c2ds
compressor 3 disabled: label c3ds
compressor 4 disabled: label c4ds
compressor 5 disabled: label c5ds
compressor 6 disabled: label c6ds
9. FUNCTION MENU “ M” KEY
The function Menu is composed of the following items:
Read and reset the alarms ALrM
Read and reset the alarm log ALOG
Upload the parameter into the Hot Key UPL
Enable –disable one or the two circuits CrEn
Enable –disable one of the compressors COEn
Read and reset the number of compressor running hour Hour
Read and reset the number of compressor starts-up COSn
Read the compressor discharge temperature COdt
Read the condensing fan speed percentage of the proportional output Cond
Read the percentage of the proportional output 0 ÷ 10 Vdc Pout
Enable –disable evaporator or condenser water pumps PoEn
Time counting to next defrost cycle, under heat pump mode, dF
Read the probe temperatures that enabled to control the auxiliary output uS
Read temperature, Set point and output status of solar panel SoL
Read temperature, Set point and output status of Free cooling FC
Read probe temperature of the remote panels trEM
Read temperature, pressure, set point of the electronic expansion valve 1 Et1
Read temperature, pressure, set point of the electronic expansion valve 2 Et2
Enable / disable recovery function (REC)