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14
Installation and Operations Manual
WARNING: When rst connected, easy is already on and
ready to be used. The instrument can be switched on from
a supervisor PC and via an external contact (setting A4=
5). The latter has priority over the other modes.
SET POINT SETTING DESIRED TEMPERATURE VALUE
The easy and easy compact devices control the desired temperature
(set point) inside the cabinet or cold room directly and dynamically.
To view and modify the set point:
• press SET for 1 s, the set value will start ashing;
• increase or decrease the value using UP or DOWN;
• press SET to conrm the new value.
MANUAL DEFROST
Press DOWN for more than 3 s (activated only if the temperature
conditions are right).
CONTINUOUS CYCLE
Press UP+DOWN for more than 3 s (activated only if the temperature
conditions are right).
The continuous cycle is used to maintain refrigeration active in the
cabinet or cold room, regardless of the temperature inside the unit.
This may be useful for rapidly bringing the temperature below the
set point value.
RAPID DISPLAY OF THE TEMPERATURE READ BY THE OTHER
PROBES
Press the DOWN button to scroll the temperatures read by the
probes. Each time the DOWN button is pressed, the display will
show the name of the probe Pr1, Pr2 or Pr3 (only on the models
with 3 inputs and with multifunction input congured as a probe)
and after 1 s the temperature measured by the selected probe will
be displayed.
To display the other probes, press DOWN again.
To return to the normal display, wait 3 s without pressing any
buttons (exit by timeout).
Temperature Display
The temperature displayed, the unit of measure and the decimal
resolution can be set according to the following parameters: /4, /5
and /6.
/4 : select probe displayed
Used to choose whether to display the temperature read by the
control probe (Probe 1), Probe 2 or the status of the multifunction
input (analogue or digital).
Parameter /4 selects the probe shown on the display, all the other
display and control modes remain unchanged.
IMPORTANT: the easy compact models can display up to 2 probes.
/5: select °C/°F
Denes the unit of measure used for temperature control.
/5=0 to work in °C
/5=1 to work in °F.
WARNING:
when changing from one unit of measure to the other, all
the values of the temperature parameters are modied to
the new unit of measure.
The max and min limits of the absolute temperature
parameters are the same for both °C that °F. The range of
temperatures allowed is therefore dierent between °C
and °F:
/6: disable decimal point
Used to enable or disable the temperature display with the
resolution to the tenths of a degree between -20 and + 20 (easy) or
-10 and +10 (easy compact).
/6= 0 temperature displayed to the tenth of a degree;
/6=1 temperature displayed without the tenths of a degree.
NOTE: the decimal point is only disabled in relation to the reading
shown on the display (the calculations performed by the controller
remain unchanged).
Temperature Control
The following parameters are used to control the temperature: St,
r1, r2, r3, r4 and rd.
St: set point, r1 minimum value and r2 maximum value of the
set point
Parameter St determines the desired temperature to be maintained
inside the cabinet or cold room (set point). Parameters r1 (minimum
value) and r2 (maximum) set the range of temperatures for setting
the set point.
NOTE: the set point can be set by pressing the SET button (see par.
“Setting the set point (desired temperature value)” page 11).
r3: select direct/reverse operation
Denes the operating mode of the device:
• r3=0: direct with defrost. Used to request the activation of the
compressor when the temperature measured by probe 1 rises
above the set point. This mode also includes defrost
• r3=1: direct without defrost
• r3=2: reverse without defrost. Used to request the activation of
the compressor when the temperature measured by probe 1
falls below the set point. This mode does NOT include defrost.
3. Controllers