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easy/easy compact/easy split +030220791 - rel. 3.2 - 13.07.2010
Easy split
In easy split models the algorithm for managing the door depends on
the type of unit selected, according to parameter Ado, and the setting
of parameter A4.
Ado = 0: display case
Opening the door:
When opening the door, if parameter A7 or d8 ≠0, the controller goes
into pre-alarm status:
• the temperature displayed and the alarm icon (bell) ash;
• the high temperature alarm is disabled;
• if A4=7, 10 the fan is stopped;
• if A4=8, 11 the fan and the compressor are stopped;
• if A4=10, 11 and if the light output is con gured (H1=4), the light is
on.
If the door remains open for a time greater than A7, the controller goes
into alarm status:
• the temperature displayed ashes alternating with ‘dor’;
• the buzzer is activated;
• the light remains on if an output is con gured as the light output
(H1=4);
• the high temperature alarm is enabled, after the delay Ad;
• the auxiliary relay is activated if H1 = 3;
• the fan is ON;
• if A4=8, 11 the compressor is restarted, observing any protection times
(‘c’ parameters);
Closing the door:
The controller resumes normal operation:
• the fans and the compressor are started if called (observing any
protection times – ‘c’ parameters)
• the light is switched o if an output is con gured as the light output
(H1= 4);
• the auxiliary relay is deactivated if H1 = 3;
• the buzzer is deactivated;
• the temperature stops ashing and the alarm icon (bell) goes o ;
• the high temperature alarm is enabled after the delay Ad.
Ado = 1: cold room
Assuming the user enters the cold room, closing the door behind him,
and then exits the room, closing the door a second time. If the user
enters the cold room and then leaves immediately, closing the door, the
controller waits until the door is opened a second time and if this does
not occur within a certain time (A7 or d8), normal operation resumes.
Opening the door the rst time:
When opening the door, if parameters A7 and d8 are≠0, the controller
goes into pre-alarm status:
• the temperature displayed and the alarm icon (bell) ash;
• the high temperature alarm is disabled;
• if A4=7, 10 the fan is stopped;
• if A4=8, 11 the fan and the compressor are stopped;
• if A4=10, 11 and if the light output is con gured (H1=4), the light is
activated;
If the door remains open for a time greater than A7, the controller goes
into alarm status:
• the fans and compressor are started if called; when restarting the
compressor the protection times are observed (‘c’ parameters);
• the light remains on if an output is con gured as the light output (H1=
4);
• the auxiliary relay is energised if H1 = 3;
• the temperature displayed ashes alternating with ‘dor’;
• the buzzer is activated;
• the high temperature alarm is enabled after the delay Ad.
Closing the door the rst time:
the controller maintains the previous status:
• the fans and/or compressor (see parameter ‘A4’) remain o ;
• the light is kept on if an output is con gured as the light output (H1
= 4);
• the temperature and the alarm icon (bell) ash;
• the high temperature alarms remains disabled.
If, after rst closing, the door remains closed for a time greater than A7,
the controller resumes normal operation:
• the fans and/or compressors are switched on if called; when the
compressor restarts the protection times must be observed (‘c’
parameters)
• the light remains on if an output is con gured as the light output (H1
= 4);
• the high temperature alarm is enabled after the delay Ad;
• the temperature stops ashing and the alarm icon (bell) goes o .
Note: assuming the user has already left the cold room, and in
that case will be able to turn o the light from the outside by
pressing the DOWN button, or alternatively is still working inside.
If, after rst closing, the light is switched o manually (the user is outside
the cold room), the controller resumes normal operation without waiting
for the door to open a second time:
• the fans and/or compressors are switched on if called; when the
compressor restarts the protection times must be observed (‘c’
parameters);
• the high temperature alarm is enabled after the delay Ad;
• the temperature stops ashing and the alarm icon (bell) goes o .
Opening the door the second time: status unchanged.
Closing the door the second time:
• the fans and/or compressors are switched on if called; when the
compressor restarts the protection times must be observed (‘c’
parameters)
• the high temperature alarm is enabled after the delay Ad;
• the light is o if an output is con gured as the light output (H1= 4).
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