34
•
Press and release the
button, or do not carry out any operations for 15 seconds.
To exit the procedure:
•
Press and hold the
buttons for 4 seconds. or do not carry out any operations for 60
seconds (any changes will be saved).
Switch the product off and then on again to make the changes made to the parameters effective/active.
10.5.6. Restore factory settings
To carry out the procedure:
•
Make sure that the keypad is not locked and that no other advanced procedure is in progress.
•
Press and hold the
buttons for 4 seconds. The screen will show “PA” (password).
•
Press and release the
button.
•
Press either the
or
button within 15 seconds to set “149” on the display screen.
•
Press and release the
button, or do not carry out any operation for 15 seconds.
•
Press and hold the
buttons for 4 seconds. The screen will show the “dEF” parameter.
•
Press and release the
button.
•
Press either the
or
button within 15 seconds to set “1”.
•
Press and release the
button, or do not carry out any operation for 15 seconds. The display
will show “dEF” flashing for 4 seconds, after which the product will exit this operation.
•
Disconnect the product from the electrical network.
10.5.7. Compressor operating hours
The device is capable of memorizing up to 9,999 hours of compressor operation. If the number of
hours exceeds “9,999” it flashes. To display the operating hours of the compressor:
•
Make sure that the keypad is not locked and that no other advanced procedure is in progress.
•
Press and release the
button. The screen will show “CH”.
•
Press the
button to see the hours.
•
Press and release the
button.
To exit the procedure:
•
Keep the
button pressed or do not carry out any operation for 60 seconds. Alternatively
press and release the
button.
10.6. Specific operations
The product is provided with a verification system of the environmental conditions concerning the
temperatures of the external incoming air. The below is necessary to avoid the product working with
the heat pump mode out of specification, which may cause faults to the compressor and the conse-
quent interruption of the product’s functions.
