Data Error; Modifying The Parameters; Setting The Default Parameters - Carel easy User Manual

GB
CHt fl ashing
dirty condenser alarm:
•
check parameters A4, Ac, AE and Acd.
EtC fl ashing
internal clock error.

5.3 Data error

In certain operating conditions, the instrument may detect errors in the
data saved. These errors may compromise the correct operation of the
instrument. If the microprocessor detects a data saving error, the display
shows the message "EE".
If the fault persists, the controller needs to be replaced. If, on the other
hand, the message disappears, it can continue to be used. When "EE" error
occurs frequently and/or remains for some time, the controller should be
checked, as the original precision may not be guaranteed.

5.4 Modifying the parameters

Parameter navigation
The operating parameters, modifi able using the keypad, are divided into
two types: frequent (type F) and confi guration (type C). Access to the
latter is protected by password (default= 22) to prevent accidental or
unauthorised modifi cations.
Accessing the type F parameters:
•
press the SET button for more than 3 s (if there are active alarms, mute
the buzzer), the display shows the parameter code 'PS' (password);
•
use the UP and DOWN buttons to scroll the parameters. The LED
corresponding to the category of parameters will be on (see Table
5.b);
•
press SET to display the value associated with the parameter
•
increase or decrease the value using the UP or DOWN button
respectively;
•
press SET to temporarily save the new value and display the parameter
again;
•
repeat the procedure for any other parameters that need to be
modifi ed;
•
press the SET button for more than 3 s to permanently save the
parameters and exit the parameter setting procedure.
Accessing the type C parameters:
•
press the SET button for more than 3 s (if there are active alarms, mute
the buzzer), the display shows the parameter code "PS" (password);
•
press the SET button to access the password setting;
•
use the UP and DOWN buttons to scroll the numbers until displaying
"22" (password to access the parameters);
•
press the SET button to confi rm the password;
•
use the UP and DOWN buttons to scroll the parameters. The LED
corresponding to the category of parameters will be on (see Table
5.b);
•
press SET to display the value associated with the parameter
•
increase or decrease the value using the UP or DOWN button
respectively;
•
press SET to temporarily save the new value and display the parameter
again;
•
repeat the procedure for any other parameters that need to be
modifi ed;
•
press the SET button for more than 3 s to permanently save the
parameters and exit the parameter setting procedure.
Warnings:
if no button is pressed for 60 s, all the changes made to the
parameters, temporarily saved in the RAM, will be cancelled and the
easy/easy compact +030220791 - rel. 2.0 - 30.05.2007
previous settings restored.
The dAY, hr, Min parameters are not restored, as these are saved instantly
when entered.
If power is disconnected from the instrument before saving the settings
(pressing the SET button for 3 s), all the changes made to the parameters
and temporarily saved will be lost..
Category
Probe parameters
Control parameters
Compressor parameters
Defrost parameters
Alarm parameters
Fan parameters
AUX output confi guration parameters
RTC parameters

5.5 Setting the default parameters

Warnings:
running this procedure overwrites any custom parameter
settings.
To reset the default parameters:
•
disconnect power from the instrument;
•
reconnect power while holding the SET and DOWN buttons;
•
the display will show the message "CF";
•
after a few seconds the instrument starts operating with the default
confi guration. Any diff erent parameter settings will need to be
updated.
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Table 5.b