User manual

7 Operation
EN
26 Rittal enclosure cooling unit
7.3.3 Efficiency information
 Click on the "Efficiency information" symbol.
The average energy efficiency ratio (EER) for the last
24 hours of operation will be displayed. The energy ef-
ficiency ratio is the ratio of the cooling output generat-
ed to the electrical power used.
7.4 Configuration menu
 Click on the "Configuration" symbol.
A screen page will appear asking you to enter the PIN
in order to access the lower-level screen pages.
 For the first digit, page through the digits "0" to "9" us-
ing the "Up" and "Down" arrows until the required digit
appears in the box.
 Confirm your selection with "OK".
 For the second digit, once again page through the dig-
its "0" to "9" using the "Up" and "Down" arrows until
the required digit appears in the box.
 Confirm your selection with "OK".
A list of lower-level screen pages will be displayed.
7.4.1 Temperature
 Click on the "Temperature" symbol to display a list of
lower-level screen pages.
Unit
All temperature values for the unit may be displayed ei-
ther in degrees Celsius "°C" or degrees Fahrenheit "°F".
 Click on the "Change unit" symbol.
 Change the required unit ("°C" or "°F") using the "Up"
or "Down" arrows.
 Confirm your entry with "OK".
Control mode
The cooling unit is able to control cooling output accord-
ing to one of the following two temperature values:
– Internal temperature: The temperature at which air
is drawn out of the enclosure into the cooling unit.
– External sensor: The temperature measured with an
external temperature sensor at a so-called hot spot in
the enclosure.
 Click on the "Control mode" symbol.
The setpoint for the currently set control mode is dis-
played.
 Choose your preferred control mode by selecting it
from the display:
The corresponding symbol for the chosen control mode
is likewise displayed on the overview page.
If the unit is configured as a "slave": Slave num-
ber.
Symbol Parameter
Efficiency information
Average energy efficiency ratio (EER) of the last
24 hours of operation.
Tab. 8: "Efficiency information" zone
Note:
"22" is preset in the factory as the default
PIN.
Symbol Parameter
Temperature
Settings for set temperature and control mode
Alarm relay
Settings for the alarm relays.
Display language
Choice of language for display texts.
Self-test
Perform a self-test.
Tab. 9: "Configuration" zone
Symbol Parameter
Tab. 7: "Device information" zone
Symbol Parameter
Change unit
Set the unit "°C" or "°F"
Control mode
Alarm limit
Temperature limit which will trigger an alarm
message if exceeded.
Tab. 10: "Temperature" zone
Symbol Parameter
Internal temperature
External sensor
Tab. 11: "Control mode" zone
Note:
The external temperature sensor is available
as accessory from Rittal.