GALILEI LIBRA 70, Original Instructions Manual

Page: 38 / 52

c Cod. 80000230a – 01.12.2014
User Interface – keypad
The keypad consist of 6 buttons, whose multiple functions are described below.
ATTENTION: The “On/Off” button is not an isolator switch and, as factory default, it is disabled
by a specific parameter (“onF” parameter). It is recommended not to change this factory setting. In case
this function must be enabled, ask the service personnel to modify the parameter mentioned above.
CAUTION: in case the “On/Off” button is enabled, be aware that in “off” condition the controller is in
“stand-by” status and the condensing unit is switched off, but the terminal block is still connected to the
power supply and UNDER VOLTAGE. Besides, all electric devices downstream of the terminal block are
potentially still connected to the phase line.
In all cases, DO NOT carry out any maintenance/cleaning operation without disconnecting completely the
cabinet from the power supply (See “General Recommendations” sections “Cleaning” and “Maintenance”).
Check and Modification of the set-point temperature
The controller manages the desired temperature (set point) inside the cabinet directly and dynamically.
How to display the current set point:
- Push and immediately release the SET button; the display will show the current Set Point value
- Push and immediately release the
SET
button or wait 5 sec. to display the sensor value again.
-
How to change the current set point:
- Push the SET key for more than 2 seconds to change the Set point value
- The value of the set point will be displayed and the “ °C” (or “°F) LED starts blinking
- To change the Set value push the
UP
or
DOWN
arrows within 10s
- To memorize the new set point value push the
SET
key again or wait 10s