dixell EMERSON iCHiLL IC70CX User manual

IC70CX
(doc. rel. 1.1)

IC70CX Pag. 2 of 23
Index
1. GENERAL WARNING...........................................................................................................................................3
2. HARDWARE.........................................................................................................................................................4
3. FRONT PANEL.....................................................................................................................................................5
4. FIRST INSTALLATION.........................................................................................................................................6
5. PARAMETER PROGRAMMING WITH “HOTKEY”................................................................................................6
6. PARAMETER PROGRAMMING............................................................................................................................6
7. HOW TO LOCK THE KEYBOARD........................................................................................................................7
8. MAXIMUM AND MINIMUM TEMPERATURE MEMORIZATION.............................................................................7
9. SET POINT VISUALIZATION AND MODIFICATION..............................................................................................7
10. HOW TO SWITCH ON OR SWITCH OFF THE INSTRUMENT ...............................................................................7
11. ALARMS............................................................................................................................................................. 13
12. SERIAL COMMUNICATION................................................................................................................................14
13. PARAMETERS...................................................................................................................................................15
14. INSTALLATION AND MOUNTING...................................................................................................................... 21
15. ELECTRICAL CONNECTIONS ........................................................................................................................... 21
16. CONNECTIONS.................................................................................................................................................. 21
17. TECHNICAL DATA............................................................................................................................................. 23

IC70CX Pag. 3 of 23
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 usedas a safety device.
Check the applicationlimits before proceeding.
Dixell Srl reserves the right to change the composition of its products, even without notice,
ensuring the same andunchangedfunctionality.
1.2 Safety Precautions
Check the supply voltage iscorrect before connecting theinstrument.
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.
Fit the probe whereit is not accessible by theEnd User. The instrument must not be opened.
In case of failure or faulty operation sendtheinstrument backto thedistributor orto “Dixell S.r.l.”
(see address) with a detailed description of thefault.
Consider themaximum currentwhichcan be appliedtoeach relay(see TechnicalData).
Ensure that the wires for probes, loads and the power supply are separated and far enough
from each other, without crossing or intertwining.
In case of applications in industrial environments, the use of mains filters (our mod. FT1) in
parallel with inductive loads could be useful.

IC70CX Pag. 4 of 23
2. Hardware
N° OF KEYS
6

RELAY OUTPUT
4

DIGITAL INPUT
1
Config
PROBES
2
(
NTC
o
P
tc
)
Config
SERIAL
OUTPUT
TTL
(
ModBusRtu
protocol
)

SUPPLY
230
Vac
(± 10%)

110
Vac (± 10%)
Opt
DISPLAY
3
digit with decimal point

OTHER
Buzzer
Opt
Config. = configurable by parameter
Opt = optional
= standard

IC70CX Pag. 5 of 23
3. Front panel
3.1 Display symbol
LED
MEANING
Lighted
Compresso
r ON
Blink
Compressor
start up phase
Lighted
Defrost on going
Blink
Dripping time on going
Lighted
Fan ON
Blink
Fan start up phase
Lighted
Alarm ON
Lighted
Anti legionella cycle on going
Lighted
Heater ON
°C/°F
Lighted
Unit of measure
°C/°F
Blink
Parameter programming phase
3.2 Keys
MEANING
Enable/disable the compressor
(pre
ss
3 sec
onds
)
Start manual defrost
SET
S
et point
visalization
To
read
max. stored temperature;
in programming mode it browses the parameter codes o
r increases the
displayed value;
to enable the anti-legionella cycle.
To
read
min stored temperature;
in programming mode it browses the parameter codes or decreases the
displayed value.
Switch on/off the controller

IC70CX Pag. 6 of 23
4. First installation
4.1 How to set current time
Following first power on or after a pediod of power off it’s necessary to program the time and day:
1. Enter the Pr1 programming menu, by pushing the SET + keys for 3s.
2. The rtc parameter is displayed. Push the SET key to enter the real time clock menu.
3. The Hur (hour) parameter is displayed.
4. Push the SET and set current hour by o keys, then push SET to confirm the value.
5. Repeat the same operations on the Min (minutes) and dAy (day) parameters.
To exit: Push SET+ keys or wait for 15 secs without pushing any keys.
5. Parameter programming with “Hotkey”
5.1 Upload (parameters copy from instrument to HotKey)
1. The instrument has to be ON
2. Insert the Hotkey into the 5 ways connector, then press key.
3. The display shows “uPL” blinking
4. At the end the display shows:
“End”: programming operation is successful
“Err”: programming operation is not succesful. By pressing key is possible to repeat the operation.
5.2 Download (parameters copy from HotKey toinstrument)
The Hotkey has to be already programmed with a parameter map compatible with the instrument:
1. The instrument must not be powered
2. Insert the Hotkey into the 5 ways connector
3. Provide voltage to the instrument: DOWNLOAD procedure starts automatically. The display visualizes “doL” blinking
4. At the end the display shows:
“End” programming operation is successful
“Err” programming operation is not succesful. remove the HotKey and repeat operation above.
6. Parameter programming
6.1 How to change a parameter value (Pr1 level)
1. Enter the Programming mode by pressing the Set + keys for 3 seconds (“°C” or “°F” LED starts blinking).
2. Select the parameter to change then press the “SET” key to display its value
3. Use or to change its value.
4. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15seconds without pressing any key.
NOTE: the new value is stored even if the procedure ends for time out.
6.2 How to change a parameter value in the hiddenmenu (Pr2 level)
1. Enter the Programming mode by pressing the Set + keys for 3 seconds (“°C” or “°F” LED starts blinking).
2. When a parameter is showed, press Set + for 7 seconds; “Pr2” label is showed followed by first parameter on the
list.
3. Select the parameter to change, then press the “SET” key to display its value.
4. Use or to change its value.
5. Press “SET” to store the new value and move to the following parameter.
To exit: Press SET + UP or wait 15seconds without pressing any key.
NOTE: the new value is stored even if the procedure ends for time out.

IC70CX Pag. 7 of 23
6.3 How to move a parameter from the hidden menu(Pr2) to the first level (Pr1) and viceversa
Each parameter present in the HIDDEN MENU can be removed or moved into “THE FIRST LEVEL” (user level) by pressing
“SET + ”.
In HIDDEN MENU when a parameter is present in First Level the decimal point is on.
7. How to lock the keyboard
7.1 Lock the keyboard
1. Keep pressed + (together) keys for more than 3 seconds.
2. “POF” message will be displayed and the keyboard will be locked. At this point it will be possible only to see the set
point or the Max o Min stored temperature.
3. If a key is pressed more than 3 seconds, “POF” message will be displayed.
7.2 Unlock the keyboard
Keep pressed + (together) keys for more than 3 seconds, till the “Pon” message will be displayed.
8. Maximum and minimum temperature memorization
8.1 How to see minimum temperature
1. Press and release the key.
2. “Lo” message will be displayed followed by the minimum temperature recorded.
3. By pressing the key again or by waiting 5 seconds the normal visualization will be restored.
8.2 How to see the max temperature
1. Press and release the key.
2. The “Hi” message will be displayed followed by the maximum temperature recorded.
3. By pressing the key again or by waiting 5 seconds the normal display will be restored.
8.3 How to reset maximum and minimum recorded temperature
1. Hold press the SET key for more than 3 seconds, while the max or min temperature is displayed (rSt message will be
displayed)
2. To confirm the operation the “rSt” message starts blinking and the normal temperature will be displayed.
9. Set point visualization and modification
9.1 HOW TO READTHE SETPOINT
Push and immediately release “SET” key: the display will show the Set point value.
Push and immediately release “SET” key or wait 5 seconds to display the normal visualization.
9.2 HOW TO CHANGE THE SETPOINT
1. Push the “SET” key for more than 2 seconds to change the Set point value;
2. The value of the set point will be displayed and the “°C” or “°F” led starts blinking;
3. To change the Set value push the or keys within 10 seconds
4. To memorise the new set point value push “SET” key again or wait 10 seconds.
10. How to switch on or switch off the instrument
By pressing key it is possible to switch off (if previously was ON) or switch on (if previously was ON) the instrument.
After a power on is possible to delay the loads regulation setting C01 parameter.

IC70CX Pag. 8 of 23
The type of the probes can be selected by C05 parameter:
C05=PTC PTC probes are used
C05=NTC NTC probes are used
The unit of measure of the temperature can be:
C06=°C temperatures are showed in °C
C06=°F temperatures are showed in °F
For °C visualization it is possible to choose if the temperature has to be showed with decimal point or not:
C07=DE temperatures are showed with decimal point
C07=°F temperatures are showed without decimal point
10.1 Compressor
The compressor is used to maintain the set point temperature (S01 parameter).
It is possible to set a minimum OFF time (parameter C02) to avoid consecutive short cycles of the compressor.
If the regulation probe is faulty, the compressor will run with ON/OFF cycles defined by C03 and C04 parameters.
10.2 Heaters
Heaters can be used to integrate the compressor to produce hot water; to the compressor contribution is possible to add
electrical heaters contribution ifthe boiler temperature falls below a determined value set by parameter.

IC70CX Pag. 9 of 23
10.3 Compressor and heaters regulation in relation to ambienttemperature
It is possible to set an ambient temperature (parameter S08) under witch the heaters, if not previously ON, are switched ON.
It is also possible to switch OFF the compressor if the ambient temperature falls below a determined temperature (parameter
S10).

IC70CX Pag. 10 of 23
10.4 How to disable the compressor
It is possible to disable the compressor pressing key for 3 seconds.
If the heaters are available, they are used to substitute the compressor.
If the compressor is disabled, it remains in that state also after a power off.
10.5 Fan
Fan operation mode can be set by F01 parameter:
F01 = C_n fan runs with the compressor, OFF in defrost
F01 = o_n fan always ON, OFF in defrost
F01 = C_Y fan runs with the compressor, ON in defrost
F01 = o_Y fan always ON, ON in defrost
It is possible to switch off the fan if evaporator temperature falls below “F02” (Temperature to stop fan).
It is possible to set a delay to restart the fan after a defrost.

IC70CX Pag. 11 of 23
10.6 Anti legionella cycle
The Anti-Legionella cycle is a procedure used to eliminate legionella bacteria; during the cycle the water temperature is
increased to S12 set point for a period of time defined by parameter S16 (expressed in tens of minutes).
Anti-legionella cycle can be activeted:
At Power-On: if the parameter S14=y, the cycle is activated every time the instrument is switched on.
Manually: by pressing key for 3seconds it is possible to activate/deactivate antilegionella cycle.
Day of the week: internal clock is used (clock has to work correctly). The cycle is activated once a week (day
can be set by S17 parameter) at a determined hour (parameter S15) and the temperature will be maintained for
S16 time. If the internal clock goes on error during anti legionella cycle, the cycle ends when S16 time is
elapsed.
Time S16 starts counting when the water temperature reach S12 set point.
To start the cycle is necessary:
a. the instrument mustn’t be on alarm
b. the instrument mustn’t be OFF (stand-by)
c. a relay has to be configured as heaters
d. S16 parameter has to be bigger than zero
e. S17 parameter has to be set different to “nu” (not used)
Anti legionella cycle operationmode
if boiler temperature il lower than compressor set point, only the compressor is switched on
if boiler temperature is between compressor set point and anti legionella set point (S12 > boiler temperature >
S01), only heaters are switched on. Differential of regulation is S02 for both set point (compressor and anti
legionella)
if boiler temperature is higher than anti legionella set point, both compressor and heaters are off

IC70CX Pag. 12 of 23
ANTI-LEGIONELLA TIME OUT ALARM
When the cycle starts, the controller activates the compressor or the heaters until the temperature reaches the set point
value legionella.
If the compressor can not be activated because an alarm block it, the heaters are switched on to substitute the compressor.
When the anti legionella cycle starts, a maxim time to reach the set point starts counting; if the set is not reached within this
time, the message "LGN" is showed and the cycle is interrupted.
The alarm can be silenced and removed by pressing a button.
10.7 Defrost
To disable the defrost set parameter d05=0.
Two defrost operation mode are selectable:
d01=EL defrost with electrical heaters (compressor OFF in defrost and dripping time)
d01=in hot gas defrost (compressor On in defrost and OFF during dripping time)
Defrost is doneby interval time set by d03 parameter; if d06>0, the defrost is delayed by this time.
The defrost lasts maximum d05 time; when d05 time is elapsed and the defrost is still ongoing, it ends.
If d05=0, the defrost is disabled.
During defrost the high and lower temperature alarm (HA and LA) are disabled; after defrost the alarms detection restart after
20 minutes (time fixed and not modifiable).
After the defrost the dripping time starts and lasts d07 time.

IC70CX Pag. 13 of 23
Defrost visualization
It is possible to chooose what to visualize during defrost and dripping time.
If d08=it (visualization of the temperature measured when the defrost starts) it valid only if C02=P1 or C02=dtr,
otherwise the display shows actual temperature.
Defrost visualization:
parameter d08 = rt default temperature visualization (parameter C22)
parameter d08= it default temperature when defrost is started
parameter d08= SEt set point visualization
parameter d08= dEF “dEF” label visualization
Dripping time visualization:
parameter d08= rt default temperature visualization (parameter C22)
parameter d08= it = SEt =dEF default temperature when defrost is started
Visualization during d06 start defrost delay time:
parameter d08= rt default temperature visualization (parameter C22)
parameter d08= it = SEt =dEF default temperature when defrost is started
MANUAL START DEFROST
It is possible to start the defrost pressing key for 2 seconds.
In case of manual defrost procedure, the d06 delay is not considered.
11. Alarms
Temperature alarms:
can be absolute or relative to the set point (selection by parameter A01)
it is possible to choose the reference probe (parametrs A02 and A10)
alarm signalling can be delayed by A06 and A14 parameters
compressor and heater can be switched off in case of temperature alarm (parametrs A07, A08, A16 and A17)
tempereature alarm detection can be delayed at the power by A09 and A15 parameters
Temperature alarm detection is disabled in the following cases:
delay at power on (parameter C01)
defrost, dripping time or anti legionella cycle on going
for 20 minutes after the defrost
11.1 Alarm codes
Message
Cause
Outputs
“P1”
Room probe failure
Compressor
off or cycles for
“C
03
” and “C
04
”
time
“P2”
Evaporator
probe
failure
Defrost end
s
for maximum duration
“P3”
Third probe failure
Outputs unchanged
“P4”
Fourth probe failure
Outputs unchanged
“HA”
Maximum temperature alarm
See parameters
A07, A08, A16 and A17
“LA”
Minimum temperature alarm
See parameters
A07, A08, A16 and A17
"HA2"
Condenser high temperature
It depends on the “A
17
” parameter
"LA2"
Condenser low temperature
It depends on the “
A16
” parameter
“EA”
External alarm
Output unchanged
“CA”
Serious external alarm
(C15=bAL)
All output
s OFF

IC70CX Pag. 14 of 23
Message
Cause
Outputs
“CA”
Pressure switch alarm
(C15=PAL)
All outputs OFF
“rtc”
Real time clock alarm
Alarm output ON; Other outputs unchanged; Defrosts according to par.
“
d03
”
Set real time clock has to be set
rtF
Real time clock board failure
Alarm output ON; Other outputs
unchanged
.
Defrosts according to par. “d03”
11.2 Alarm reset
P1”, “P2”, and “P4” probe alarms start some seconds after the fault of the related probe; they automatically reset some
seconds afterthe probe restarts normal operation.
Check connections before replacing the probe.
Temperature alarms “HA”, “LA” “HA2” and “LA2” automatically stop as soon as the temperature returns to normal values.
Alarms “EA” and “CA” (with C15=bAL) recover as soon as the digital input is disabled; if the digital input is configured as
pressostat (C15=bAL), reset is manually after switching off the Ichill.
rtC alarm resets after clock setting; rtF alarm means hardware problem and is necessary to replace the Ichill.
Alarm Lgn recovers by pressing a key, regulation on SET.
11.3 Other messages
Pon
Keyboard unlocked
PoF
Keyboard locked
noP
In programming mode
: none parameter is present in Pr1
On the display or in dP2, dP3, dP4: the selected probe is nor enabled
12. Serial communication
The controller has a serial output that can be used for:
upload and download of the parameter map by HotKey
upload and download of the parameter map by Wizmate software
XWEB supervising system
Serial address can be set by C26 parameter.

IC70CX Pag. 15 of 23
13. Parameters
rtC Access to clock menu
Hur Hour
Min Minutes
dAy Day of the week
S 01
Set point S03 S04 0,1 °C / 1°F
S 02
Differential 0,1°C ÷ 25,5°C
1°F ÷ 45°F 0,1°C / 1°F
S 03
Minimum value of the set point
-
55,0°C ÷ S01
-
67°F ÷ S01
0,1°C / 1°F
S 04
Maximum value of the set point S01 ÷ 150,0°C
S01 ÷ 302°F 0,1°C / 1°F
S 05
Set point heater for integration to compressor -55,0°C ÷ 110°C
-67°F ÷ 230 °F
S 06
Differential heater for integration to compressor 0,1°C ÷ 25,5°C
1°F ÷ 45°F
S 07
heater activation delay 0 ÷ 255 (min.) 1 minute
S 08
Set point heater on evaporator probe -55,0°C ÷ 110°C
-67°F ÷ 230 °F
S 09
Differential heater on evaporator probe 0,1°C ÷ 25,5°C
1°F ÷ 45°F
S 10
Set point to switch off compressor on evaporator probe -55,0°C ÷ 110°C
-67°F ÷ 230 °F
S 11
Differential to switch on compressor on evaporator probe 0,1°C ÷ 25,5°C
1°F ÷ 45°F
S 12
Set point for anti legionella cycle
-
55.0°C ÷ 150,0°C
-67°F ÷ 302°F
S 13
Time to reach anti legionella set point 0 ÷ 24H0(144) 10 minute
S 14
First defrost after start-up n(0) - Y(1) -
S 15
Antilegionella start time 0 ÷ 23h5 (143) 10 minutes
S 16
Antilegionella duration 0 ÷ 255 (min.) 1 minute
S 17
Day to activate anti legionella cycle Sun(0) ÷ SAt(6) -
nu(7)
C 01
Delay to start regulation at start up 0 ÷ 255 (min.) 1 minute
C 02
Compressor anti-short cycle delay 0 ÷ 50 (min.) 1 minute
C 03
Compressor ON time if regulation faulty probe 0 ÷ 255 (min.) 1 minute
C 04
Compressor OFF time if regulation faulty probe 0 ÷ 255 (min.) 1 minute
C 05
Probe selection PtC(0) - ntC(1)
C 06
Temperature unit of measure °C(0) - °F(1) -
C 07
Temperature visualization resolution dE(0) - in(1) -
C 08
Pb2 Evaporator probe presence n(0) - Y(1) -
C 09
Pb3 probe presence n(0) - Y(1) -
C 10
Pb4 probe presence n(0) - Y(1) -

IC70CX Pag. 16 of 23
C 11
Pb1 Regulation probe calibration
-
12,0°C ÷ 12,0°C
-
21°F ÷ 21°F
0,1°C / 1°F
C 12
Pb2 Evaporator probe calibration
-
12,0°C ÷ 12,0°C
-
21°F ÷ 21°F
0,1°C / 1°F
C 13
Pb3 probe calibration
-
12,0°C ÷ 12,0°C
-21°F ÷ 21°F 0,1°C / 1°F
C 14
Pb4 probe calibration
-
12,0°C ÷ 12,0°C
-21°F ÷ 21°F 0,1°C / 1°F
C 15
Digital input 1 configuration
EAL(0) - bAL(1) -
PAL(2) - onF(3) -
C 16
Digital input 1 polarity OP(0) - CL(1) -
C 17
Second relay configuration
dEF(0)
-
FAn(1)
-
ALr(2) - AUS(3) -
OnF(4)
-
HEt(5)
-
C 18
Third relayconfiguration
dEF(0) - FAn(1) -
ALr(2) - AUS(3) -
OnF(4) - HEt(5) -
C 19
Fourth relay configuration dEF(0) - ALr(1) -
C 20
Not used
C 21 Not used
C 22 Not used
C 23
Firmware Release (only reading)
C 24
Map code (only reading)
C 25
Serial address 1 ÷ 247
C 26
Kind of action for auxiliary relay CL(0) - Ht(1)
C 27
Set point of auxiliary relay -55.0°C ÷ 150,0°C
-67°F ÷ 302°F
C 28
Differential of auxiliary relay
0,1°C ÷ 25,5°C
1°F ÷ 45°F
C 29
Auxiliary relay status during defrost n(0) - Y(1)
C 30
Probe selection for auxiliary relay
nP(0) - P1(1) -P2(2) -
P3(3) - P4(4)
C 31
Probe 1 value (only visualization) (probe value)
C 32
Probe 2 value (only visualization) (probe value)
C 33
Probe 3 value (only visualization) (probe value)
C 34
Probe 4 value (only visualization) (probe value)
d01
Defrost selection EL(0) - in(1) -
d02
Defrost end temperature
-
55.0°C ÷ 50.0°C
-67°F ÷ 122°F 1°C / 1°F
d03
Interval between defrost cycles 0 ÷ 255 (ore) 1 hour
d04
Interval between defrost cycles time resolution Hur(0) - Min(1) -
d05
Maximum duration of the defrost 0 ÷ 255 (min.) 1 minute
d06
Start defrost delay 0 ÷ 255 (min.) 1 minute
d07
Draining time 0 ÷ 255 (min.) 1 minute
d08
Visualization during defrost
rt(0)
-
it(1)
-
SEt(2)
-
dEF(3)
-
F 01
Fan operating mode C_n(0) - O_n(1) -
C_Y(2) - O_Y(3) -
F 02
Fan stop temperature
-
55.0°C ÷ 50.0°C
-67°F ÷ 122°F 1°C / 1°F
F 03
Fan delay after defrost 0 ÷ 255 (min.) 1 minute

IC70CX Pag. 17 of 23
F 04
Fan on time with compressor off 0÷15 (min.) 1°C / 1°F
F 05
Fan off time with compressor off 0÷15 (min.) 1°C / 1°F
A 01
Temperature alarms configuration rE(0) - Ab(1) -
A 02
Probe selection for temperature alarms
nP(0)
-
P1(1)
-
P2(2)
-
P3(3) - P4(4)
-
A 03
Set point maximum temperature alarm
°C[0.0° ÷ 50.0° oALL
÷ 150,0°]
°F[0° ÷ 90° o ALL ÷
0,1°C / 1°F
A 04
Set point minimum temperature alarm
°C[0.0° ÷ 50.0° o
-
55.0° ÷ ALU]
°F[0° ÷ 90° o
-
67.0°
0,1°C / 1°F
A 05
Differential for temperature alarm
[0,1°C ÷
25,5°C] [1°F
÷ 45°F]
A 06
Temperature alarm delay 0 ÷ 255 (min.) 1 minute
A 07
Compressor and heaters off in case of low temperature alarm n(0) - Y(1)
A 08
Compressor and heaters off in case of high temperature alarm n(0) - Y(1)
A 09
Temperature alarm detection delay at start up 0 ÷ 24H0(144) 10 minutes
A 10
Probe selection for temperature alarm 2 nP(0) - P1(1) -P2(2) -
P3(3) - P4(4)
A 11
Low temperature alarm 2 set point (absolute temperature) [-55.0°C ÷ 150,0°C]
[-67°F ÷ 302°F]
A 12
High temperature alarm 2 set point (absolute temperature) [-55.0°C ÷ 150,0°C]
[-67°F ÷ 302°F] 0,1°C / 1°F
A 13
Temperature alarm 2 differential [0,1°C ÷ 25,5°C] [1°F
÷ 45°F]
A 14
Temperature alarm 2 delay
0 ÷ 254 (min.) ,
255=nU
1 minute
A 15
Temperature alarm delay at power-on 0 ÷ 24H0(144)
A 16
Compressor and heaters switched off in case of low temperature alarm 2 n(0) - Y(1)
A 17
Compressor and heaters switched off in case of high temperature alarm 2 n(0) - Y(1) -
A 18
Alarm relay switched off bypushing a key n(0) - Y(1) -
A 19
Digital input 1 alarm delay 0 ÷ 255 (min.) 1 minute
A 20
Number of activation of pressure switch 0 ÷ 15
A 21
Alarm relaypolarity OP(0) - CL(1) -

IC70CX Pag. 18 of 23
rtC Real time clock menu: to set the time and date and defrost start time.
TO SET CURRENT TIME AND WEEKLY HOLIDAYS
Hur Current hour (0 ÷ 23 h)
Min Current minute (0 ÷ 59min)
dAY Current day of the week (Sun ÷ SAt)
REGULATION
S01 Set point Regulation set point (S3 S04)
S02 Differential (0,1 ÷ 25,5°C / 1÷255 °F) Intervention differential for set point
S03 Minimum Set Point: (- 50°C÷C01/-58°F÷C01): Set the minimum value for set point
S04 Maximum Set Point: (S01÷110°C/ S01÷230°F). Set the maximum value forset point.
S05 Set point resistance for integration to compressor Set point activation of the resistance as integration to the
compressor
S06 Differential resistance for integration to compressor (0,1°C 25,5°C): Differential for resistence regulation as
integration to the compressor
S07 Resistance activation delay: delay to switch on the resistence
S08 Set point resistance on evaporator probe: Set point for resistance activation
S09 Differential resistance on evaporator probe: Differential for resistance regulation
S10 Set point to switch off compressor on evaporator probe: Set point to switch off the compressor if evaporator
temperature falls below a determined temperature
S11 Differential to switch on compressor on evaporator probe: Differential of compressor de-activation
S12 Set point for anti legionella cycle: Set point of the anti legionella cycle
S13 Time to reach anti legionella set point: maximum time to reach the anti-legionella set point
S14 Anti legionella cycle at start-up; this parameter allow to enable the anti legionella cycle at the power on
S15 Antilegionella start time; hour of anti legionella cycle activation
S16 Antilegionella duration; the anti legionella temperature has to be maintained for this time;
S17 Day to activate anti legionella cycle; day of anti legionella cycle activation
COMPRESSOR
C01 Outputs activation delay at start up: (0÷255 min) This function is enabled at the initial start up of the instrument and
inhibits any output activation for the period of time set in the parameter.
C02 Anti-short cycle delay: (0÷50 min) minimum interval between compressor stop andfollowing restart.
C03 Compressor ON time with faulty probe: (0÷255 min) time during which the compressor is active in case of faulty
thermostat probe. With CO3=0 compressor is always OFF.
C04 Compressor OFF time with faulty probe: (0÷255 min) time during which the compressor is OFF in case of faulty
thermostat probe. With CO4=0 compressor is always active.
CONFIGURATION
C05 Type of probe: (Ptc = probe PTC; ntc= probe NTC).
C06 Temperature measurement unit: °C = Celsius; °F = Fahrenheit.
When the measurement unit is changed, temperature set point and hysteresis have to be checked and modified if
necessary.
C07 Resolution (only for °C): (in = 1°C; dE = 0.1 °C) allows decimal point displaying.
C08 Evaporator probe presence (P2): (n = Not present: defrost stops by time; y =present: defrost stops by temperature).
C09 Pb3 probe presence
C10 Pb4 probe presence
C11 Pb1 Thermostat probe calibration: (-12.012.0°C) allows to adjust reading value of thermostat probe
C12 Pb2 Evaporator probe calibration (P2): (-12.012.0°C) allows to adjust reading value of evaporator probe
C13 Pb3 probe calibration
C14 Pb4 probe calibration
C15 Digital input configuration:
EAL = signalling alarm; bAL = alarm to stop the machine; PAI = pressure switch alarm; onF = remote ON/OFF
C16 Digital input polarity: oP= the digital input is activated by opening the contact. CL= the digital input is activated by
closing the contact.
C17 Second relay configuration (dEF - FAn – ALr - AUS - OnF- HEt)
C18 Third relay configuration (dEF - FAn – ALr - AUS - OnF- HEt)

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C19 Fourth relay configuration (dEF - FAn – ALr - AUS - OnF- HEt)
C20 Not used
C21 Not used
C22 Not used
C23 Software release (only reading)
C24 Parameter table code (only reading)
C25 Serial address (0÷244)
C26 Kind of action of auxiliary regulation; CL =cooling, HT = heating
C27 Set point auxiliary regulation Auxiliary regulation set point
C28 Differential auxiliary regulation Auxiliary regulation differential
C29 Auxiliary regulation stopped during defrost; allows to stop auxiliary regulation during defrost
C30 Auxiliary regulation probe selection
C31 Thermostat probe visualization: it allows to read thermostat probe
C32 Evaporator probe visualization: it allows to read evaporator probe
C33 Third probe visualization: it allows to read third probe
C34 Fourth probe visualization: it allows to read fourth probe
DEFROST
d01 Defrost type: EL = electrical heater; in = hot gas.
d02 End defrost temperature: (-50÷50 °C/ -58÷122°F) sets the end defrost temperature.
d03 Interval between defrost cycles: (0÷120 h) Determines the time interval between the beginning of two defrostcycles.
d04 Resolution for d03: Sets the resolution for the d03 parameter (Hur = hours, Min = minutes).
d05 Maximum length for defrost: (0÷255min) If C08=n (not evaporator probe: timed defrost) it sets the defrost duration, if
C08=y (defrost end based on temperature) it sets the maximum length for defrost.
d06 Start defrost delay: (0÷59min) This is useful when different defrost start times are necessary to avoid overloading the
plant.
d07 Drip time: (0120 min) time interval between reaching defrost termination temperature and the restoring of the control’s
normal operation. This time allows the evaporator to eliminate water drops that might have formed due to defrost.
d08 Temperature displayed during defrost: (rt = real temperature; it = temperature at defrost start; SEt = set point; dEF =
“dEF” label)
FAN
F01 Fans operating mode:
C-n= runs with the compressor, OFF during defrost;
o-n = continuous mode, OFF during defrost;
C-Y = runs with the compressor, ON during defrost;
o-Y = continuous mode, ON during defrost
F02 Fans stop temperature: (-50÷50°C/122°F) evaporator temperature above which fans are OFF.
F03 Fans delay after defrost: (0÷255min) Interval between end of defrost and evaporator fans start.
F04 Fan ON time: (0÷15 min) with F01 = C_n or C_y (fan activated in parallel with compressor), it sets the evaporator fan
ON cycling time when the compressor is off. With F05 =0 and F06 ≠ 0 the fan are always off, with F05=0 and F06 =0
the fan are always off.
F05 Fan OFF time: (0÷15 min) with F01 = C_n or C_y (fan activated in parallel with compressor), it sets the evaporator fan
off cycling time when the compressor is off. With F05 =0 and F06 ≠ 0 the fan are always off, with F05=0 and F06 =0 the
fan are always off.
TEMPERATURE ALARMS
A01 Temperature alarms configuration:(Ab; rE)
Ab= absolute temperature: alarm temperature is given by the ALL or ALU values
rE = temperature alarms are referred to the set point.
A02 Probe selection for boiler temperature alarm: P1 = Probe 1; P2 = Probe 2; P3 =Probe 3; P4 = Fourth probe
A03 Maximum temperature alarm: (SET÷110°C; SET÷230°F) when this temperature is reached the alarm is enabled,
after the “A06” delay time.
A04 Minimum temperature alarm: (-50.0 ÷ SET°C; -58÷230°F) when this temperature is reached the alarm is enabled,
after the “ALd” delay time.
A05 Differential for temperature alarm/fan recovery: (0,1÷25,5°C; 1÷45°F) Intervention differential for recovery of
temperature alarm. It’s also used for the restart of the fan when the F02 temperature is reached.
A06 Temperature alarm delay: (0÷255 min) time interval between the detection of an alarm condition and alarm signalling.
A07 Compressor and heater off with boiler low temperature alarm:

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n = no: compressor keeps on working; Y = yes, compressor is switched off till the alarm is present, in any case
regulation restarts after C02 time at minimum
A08 Compressor and heater off with boiler high temperature alarm:
n = no: compressor keeps on working; Y = yes, compressor is switched off till the alarm is present, in any case
regulation restarts after C02 time at minimum
A09 Exclusion of temperature alarm at startup: (from 0.0 min to 23.5h) time interval between the detection of the
temperature alarm condition after instrument power on and alarm signalling.
A10 Probe selection for temperature alarm 2: nP = no probe; P1 =thermostat probe; P2 = evaporator probe; P3
=configurable probe; P4 = Probe 4.
A11 Set point low temperature alarm 2:(-55÷150°C) when this temperature is reached the LA2 alarm is signalled,
possibly after the A14 delay
A12 Set point high temperature alarm 2:(-55÷150°C) when this temperature is reached the HA2 alarm is signalled, after
the A14 delay.
A13 Differential for temperature 2:(0,1÷25,5°C; 1÷45°F).
A14 Termperature alarm 2 delay: (0÷255 min) time interval between the detection of the condenser alarm condition and
alarm signalling.
A15 Temperature alarm exclusion at start up: (from 0.0 min to 23.5h, res. 10min).
A16 Compressor and heater off with low temperature alarm of boiler:n = no: compressor and heater keep on working;
Y = yes, compressor and heater are switched off till the alarm is present, in any case regulation restarts after C02 time
at minimum.
A17 Compressor and heater off with high temperature alarm of condenser:n = no: compressor and heater keeps on
working; Y = yes, compressor and heater are switched off till the alarm is present, in any case regulation restarts after
C02 time at minimum.
A18 Alarm relay silencing:
n= silencing disabled: alarm relay stays on till alarm condition lasts,
y =silencing enabled: alarm relay is switched OFF by pressing akey during an alarm.
A19 (0255 min)
with C15= EAL or C15 = bAL digital input alarm delay: delay between the detection of the external alarm condition
and its signalling.
with C15 = PAL: time for pressure switch function: time interval to calculate the number of the pressure switch
activation.
A20 Pressure switch number: (0 15) Number of activation of the pressure switch, during the “A19” interval, before
signalling the alarm event (C15= PAL)
If the A20 activation in the did time is reached, switch off and on the instrument to restart normal regulation.
A21 Alarm relay polarity