7 Operation
EN
28
Rittal enclosure cooling unit
Keep the Home key pressed down for around 3 sec-
onds to switch to the next menu up.
If you have changed the set temperature, the message
"ACC" will appear in the display for approximately
1 second. After that, the next menu up ("SP") will ap-
pear.
7.4.3
Setting the unit
All temperature values for the unit may be displayed ei-
ther in degrees Celsius "°C" or degrees Fahrenheit "°F".
When changing the unit, all temperature settings are
converted automatically.
Briefly press the Home key in the "tSE" menu.
The sub-menu "Con" (control mode) will appear for
you to select the control mode.
Use the arrow keys to select the "CF" (Celsius/Fahren-
heit) menu and briefly press the Home key again.
The currently set unit will be displayed.
Use the arrow keys to switch between the two setting
options until your preferred unit is displayed.
Keep the Home key pressed down for around 3 sec-
onds to switch to the next menu up.
If you have changed the set unit, the message "ACC"
will appear in the display for approximately 1 second.
After that, the next menu up ("CF") will appear.
7.4.4
Launching test mode
The control system features a test function, during which
the cooling unit commences cooling operation inde-
pendently of the set temperature or door function of the
door operated switch.
Use the arrow keys to select the "tSt" menu from the
"tSE" menu, then briefly press the Home key again.
The current setting "Off" will be displayed.
Use the arrow keys to select the "On" setting and keep
the Home key pressed down for approximately 3 sec-
onds.
The cooling unit begins operation. The progress of the
test is shown in the display as a percentage. Every
second, the percentage symbol is refreshed.
Fig. 53:
Percentage symbol being refreshed
The entire test takes around 7 minutes. When the test is
complete, in the event of an error "Err" will appear in the
display; otherwise it will show "OK".
Briefly press the Home key to switch back to the start
screen.
7.4.5
Manually acknowledge a system message
For system messages requiring a manual reset, the
message "rSt" will appear in the display alternating with
the system code(s) and the temperature display.
First, rectify the cause of the system message.
Then, to acknowledge the system message, press
then Home key followed by the two arrow keys simul-
taneously for three seconds.
"ACC" appears in the display to confirm acknowledge-
ment.
Display
Parameter
Setpoint
Factory
setting
"Int"
Internal
temperature
20 °C (68 °F)
…
50 °C (122 °F)
35 °C (95 °F)
"Est"
External
sensor
"Out"
Outlet
temperature
18 °C (64 °F)
…
28 °C (82 °F)
24 °C (75 °F)
Tab. 5:
Temperature setting range
1 s
