Carel easy User Manual

32
ENG
easy/easy compact/easy split +030220791 - rel. 3.2 - 13.07.2010
EF displayed during operation or on power-up
operating parameter reading error. See Data errors.
Ed  ashing
The last defrost ended after exceeding the maximum duration rather
than when reaching the end defrost set point.
• check parameters dt, dP and d4;
• check the e ciency of the defrost.
The message disappears when the next defrost ends correctly.
dF  ashing
defrost running:
• this is not an alarm signal, but rather a message that the instrument is
running a defrost. Only shown if d6= 0.
cht  ashing
dirty condenser pre-alarm:
• check parameters A4, Ac, AE and Acd.
CHt  ashing
dirty condenser alarm:
• check parameters A4, Ac, AE and Acd.
EtC  ashing
internal clock error.
SrC  ashing (easy split only)
Maintenance request signal. Displayed only if parameter HMP≠0.
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, modi able using the keypad, are divided into
two types: frequent (type F) and con guration (type C). Access to the
latter is protected by password (default= 22) to prevent accidental or
unauthorised modi 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
modi 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 con 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
modi 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
previous settings restored.
The dAY, hr, Min dMo*, Mom*, YEr* parameters are not restored, as these
are saved instantly when entered(*= easy split only).
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 Initial Icon
Probe parameters / -
Control parameters r -
Compressor parameters c
Defrost parameters d
Alarm parameters A
Fan parameters F
AUX output con guration parameters H1
RTC parameters -
Table 5.b
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
con guration. Any di erent parameter settings will need to be
updated.

Carel easy Specifications

General

Brand	Carel
Model	easy
Category	Thermostat
Language	English