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List of temperature parameters
Description
Units
Range
St1 Temperature set point 1
Degrees
rt4 to rt6
St2 Temperature set point 2
Degrees
rt5 to rt7
rt0
St1 and St2 dependency
Range
Ind / dEP
rt1
Differencial for St1
Degrees
0.1 to 20.0
rt2
Differencial for St2
Degrees
0.1 to 20.0
rt3
Band differencial
Degrees
0.1 to 20.0
rt4
Minimum value for St1
Degrees
-99.9 to rt6
rt5
Minimum value for St2
Degrees
-99.9 to rt7
rt6
Maximum value for St1
Degrees
rt4 to 302
rt7
Maximum value for St2
Degrees
rt5 to 302
rt8
Operation mode
Range
ono/rEF/nEU
dt0 Defrosting type
Range
fRES/InV
dt1 Max. defrosting temperature Degrees
-99.9 to 302
dt2 Max. defrosting time
Minutes
0 to 240
dt3 Defrosting interval time
hh:mm
0.0 to 18.0
dt4 Defrosting displayed temp.
Range
off/on/-d-
At0 Alarm differencials
Degrees
0.1 to 20.0
At1 Maximum probe 1 alarm
Degrees
0.1 to 99.9
At2 Minimum probe 1 alarm
Degrees
0.1 to 99.9
At3 Alarm check time
hh:mm
0.0 to 18.0
ct0 Minimum stop time output 1
Minutes
0 to 240
ct1 Minimum stop time output 2
Minutes
0 to 240
ct2 Operation output 1
Range
DIr/Inv
ct3 Operation output 2
Range
DIr/Inv
ct4 Default operation output 1
%ON
0 to 100
ct5 Default operation output 2
%ON
0 to 100
ct6 Continuous cycle time
Minutes
0 to 240
Pt0 Temp. probe adjustment
Degrees
-20.0 to 20.0
Pt1 Decimal point
Option
no/yES
Pt2 Temperature units
Range
ºC/ºF
Pt3 Number of temp. probes
Range
1 / 2
H0
Set default settings
Command
H1
Keypad protection
Option
no/yES
H2
Communication setup
Numeric
0 to 999
H3
Access code to parameters
Numeric
0 to 999
Temperature parameter programming
Set Points (St1,St2) are the only parameters the user can
access without code protection.
•Press SET T. Current value of St1 appears flashing and led OUT 1
flashes.
•The value can be modified with the UP and DOWN arrows.
•Press SET again to confirm St1. Current value of St2 appears
flashing and led OUT 2 flashes.
•The value can be modified with the UP and DOWN arrows.
•Press SET to enter St2 value and exit.
Access to all code protected parameters.
•Press SET T for 8 secs. The access code value 0 is shown on the
display (unit comes with code set at 0 from factory).
• Select the correct code with the UP and DOWN arrows.
•Press SET T to enter the code. If the code is correct, the first
parameter label is shown on the display (St1).
• Move to the desired parameter with the UP and DOWN.
•Press SET T to view the value on the display.
• The value can be modified with the UP and DOWN arrows.
•Press SET to enter the value.
• Repeat until all necessary parameters are modified.
•Press SET and DOWN at the same time to quit programming or
wait one minute and the display will automatically exit programming
mode.
*The keyboard code can be reset to ZERO by turning
off the controller and turning it on again while
keeping the SET T key depressed.
Set default settings
• Access parameter H0 as explained. 0 will appear.
• Press SET T or SET H for 8 seconds. Pro will appear on the display
if the Set Point is correct and Epr will appear if it is not correct.
• Press SETT+DOWN or SETH+DOWN to exit or wait 1 minute.
Temperature control process
• Independent ON/OFF control
If rt8=ono and rt0=Ind, each output is associated to a particular Set.
If ct2=dir, output 1 will connect when TS1 >= St1+rt1 (where TS1 is
the temperature of probe 1) and will disconnect when TS1 <= St1.
Temperature
Probe 1
St1+rt1
St1
ct0
Output 1 ON
Time
ct0 is the minimum stop time. Once the output is disconnected, it is
not connected again until ct0 minutes later.
If ct2=Inv, output 1 will connect when TS1 <= St1-rt1 and will
disconnect when TS1 >= St1.
Temperature
Probe 1
St1
St1-rt1
ct0
Output 1 ON
Time
The output 2 is handled in the same manner but controlled by St2,
using rt2 as differential, ct3 as indicator of direct or reverse
connection, and ct1 as minimum stop time.
• Dependent ON/OFF control
If rt8=ono and rt0=dEP, output 1 works as in Independent ON/OFF
control, but output 2 works as follows:
If ct3=dir, output 2 will connect when TS1 >= St1+St2+rt2 (where
TS1 is the temperature of probe 1) and will disconnect when TS1
<= St1+St2.
Temperature
Probe 1
St1+St2+rt2
St1+St2
ct1
Output 2 ON
Time
ct1 is the minimum stop time.
If ct3=Inv, output 2 will connect when TS1 <= St1+St2-rt2 and will
disconnect when TS1 >= St1+St2.
Temperature
Probe 1
St1+St2
St1+St2-rt2
ct1
Output 2 ON
Time
• Cooling control
If rt8=rEF the temperature is regulated by output 1 as in ON/OFF
control, while defrosting is triggered by output 2.
Three defrosting methods are available:
1.Switch off the compressor (dt0=re)
2.Switch off the compressor and connect a heat resistor to output 2
(dt0=re)
3.Switch on the compressor and connect an electro-valve to output
2 to reverse the cycle (dt0=in)
Defrosting is performed at time periods indicated by dt3. If dt3 is
zero, no
defrosting is performed periodically. Defrosting is
deactivated when TS2 (temperature of probe 2) reaches dt1 value
or when the maximum defrosting time dt2 is reached.
Defrosting can also be activated and deactivated from the keypad,
pressing the UP arrow for 8 seconds, or IR remote control.
Defrosting can not be activated if a continuous cold cycle is
activated, unit is in auxiliary adjustment mode, TS2 >=dt1 or dt2=0.
With dt4 parameter we can choose that during the defrosting and
one hour after a message -d- is displayed until the temperature
raises the initial defrosting temperature. It is also possible to show
the initial temperature during the defrosting or to show the actual
temperature all the time.
• Continuous cold cycle
A continuous cold cycle maintains the compressor (output 1) in
operation for a period of time given by ct6. These cycles are
activated from the keypad, keeping the DOWN arrow pressed for 8
seconds, and end when the time is finished or an order is given from
the keypad (pressing DOWN for 8 seconds again). The cycle will
not commence if the unit is in heat control mode or i auxiliary
adjusting mode (due to memory failure) or if defrosting is activated.
• Neutral zone control
If rt8 = NEu output 1 connects when TS1 >= St1+rt3 and
disconnects when TS1 <= St1, while output 2 connects when TS1
<= St1-rt3 and disconnects when TS1 >= St1.
Temperature
Probe 1
St1+rt3
St1
St1-rt3
Output 1 ON
Time
Output 2 ON
• Control with probe errors
If reading of probe 1 fails the output 1 works following 10 minutes
cycles, with a percentage of connection time given by Ct4. Output 2
is carried out in the same way with parameter Ct5.
If reading of probe 2 fails, the defrosting ends by time.
• Temperature alarms
If TS1 >= St1+At1, the thermostat will indicate maximum
temperature alarm for probe1 (Aht) and the alarm will remain
activated until temperature TS1 <= St1+At1-At0.
If TS1 <= St1-At2, the thermostat will activate minimum
temperature alarm for probe 1 (ALt), and it will remain activated
until temperature TS1 >= St1-At2-At0.
Program At3 to indicate the alarm check time between alarm
event and indication of an alarm event. The alarm is indicated by
a message on the display and activating the alarm output if
present (alarm can be silenced pressing SETT+DOWN keys or
CLEAR in the IR remote control).
Temperature
Temperature
Probe 1
Probe 1
St1+At1
St1-At2
St1+At1-At0
St1-At2+At0
High Alarm ON
Low Alarm ON
• Probe options
Set Pt1 to select if the decimal point is shown or not in the
display.
Set Pt2 to set temperature units (Celsius of Fahrenheit).
If the probe is not placed in the exact point to control, use a
standard thermometer to determine the offset and set it by Pt0.
Set Pt3 to select if 1 or 2 temperature probes are used.
List of humidity parameters
Description
Units
Range
Sh1 Humidty set point 1
%RH
rh4 to rh6
Sh2 Humidty set point 2
%RH
rh5 to rh7
rh0 Sh1 and Sh2 dependency
Range
Ind / dEP
rh1 Differencial for Sh1
%RH
0.1 to 30.0
rh2 Differencial for Sh2
%RH
0.1 to 30.0
rh3 Band differencial
%RH
0.1 to 30.0
rh4 Minimum value for Sh1
%RH
0 to rh6
rh5 Minimum value for Sh2
%RH
0 to rh7
rh6 Maximum value for Sh1
%RH
rh4 to 100
rh7 Maximum value for Sh2
%RH
rh5 to 100
rh8 Operation mode
Range
ono/nEU
Ah0 Alarm differencial
%RH
0.1 to 20.0
Ah1 Maximum probe alarm
%RH
0.1 to 99.9
Ah2 Minimum probe alarm
%RH
0.1 to 99.9
Ah3 Alarm check time
hh:mm
0.0 to 18.0
ch0 Minimum stop time output 3
Minutes
0 to 240
ch1 Minimum stop time output 4
Minutes
0 to 240
ch2 Operation output 3
Range
Dir/Inv
ch3 Operation output 4
Range
Dir/Inv
ch4 Default operation output 3
%ON
0 to 100
ch5 Default operation output 4
%ON
0 to 100
Ph0 Hum. probe adjustment
%RH
-20 to 20
Ph1 Decimal point
Option
no/yES
Ph2 Humidity Probe type
Range
1V/3V/420
Ph3 Value for 4mA
%RH
0.0 to 100
Ph4 Value for 20mA
%RH
0.0 to 100
H0
Set default settings
Command
H1
Keypad protection
Option
NO/YES
H2
Communication setup
Numeric
0 to 999
H3
Access code to parameters
Numeric
0 to 999
Humidity parameter programming
Follow the same steps as when adjusting temperature
parameters but using the SET H key.
Humidity control process
• Independent ON/OFF control
If rh8=ono and rh0=Ind, each output is associated to a particular
Set.
If ch2=dir, output 3 will connect when HS >= Sh1+rh1 (where HS
is the humidity measured) and will disconnect when HS <= Sh1.
Humidity
Sh1+rh1
Sh1
ch0
Output 3 ON
Time
ch0 is the minimum stop time. Once the output is disconnected, it
is not connected again until ch0 minutes later.
If ch2=Inv, output 3 will connect when HS <= Sh1-rh1 and will
disconnect when HS >= Sh1.
Humidity
Sh1
Sh1-rh1
ch0
Output 3 ON
Time
The output 4 is handled in the same manner but controlled by
Sh2, using rh2 as differential, ch3 as indicator of direct or reverse
connection, and ch1 as minimum stop time.
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