Operation - Lauda UC 2 Operation Manual

5.3 OPERATION

Remote On/Off and On/Off from the display:
The unit will only turn On when it receives both an On signal from its remote On/Off contacts (circuit closed
between terminals 23 and 24, see point 3.8) and it also receives an On command from the display. In the
same way, the unit will turn Off either when the circuit between terminals 23 and 24 is open or when an Off
command is issued from the display.
On/Off memory:
Bear in mind that, when the Main Power Switch is turned On, the controller comes back to the last
mode/status ("On" or "Off") as it was when the Main Power Switch was last as powered off.
This means that, if the chiller was running when the Main Power Switch was turned Off, it will start suddenly
next time it is switched back On.
On/Off from the display:
As long as the remote On/Off is connected, the chiller can be turned On and Off from the display (either the
remote display connected to the chiller or the webserver on a connected computer).
In order to start/stop the chiller from the display, go to the On/Off screen (see point 5.2), and use the
Up/Down buttons to toggle between On and Off.
/
Setting the temperature:
The required outlet temperature can be set between -10ºC (14ºF) and 35ºC (95ºF) from the display
(either the remote display connected to the chiller or the webserver on a connected computer).
In order to set the temperature, go to the Settings screens loop (see point 5.2), press Enter to highlight the
current set value, use the Up/Down buttons to change the value and press Enter again to confirm the new
value.
/
24