Setting The Unit; Launching Test Mode; Manually Acknowledge A System Message - Rittal SK 3178800 Assembly And Operating Instructions Manual

7 Operation
EN Display Parameter
Internal
"Int"
temperature
External
"Est"
sensor
Outlet
"Out"
temperature
Tab. 5: Temperature setting range

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.
28
Setpoint Factory
setting
20 °C (68 °F)
... 35 °C (95 °F)
50 °C (122 °F)
18 °C (64 °F)
... 24 °C (75 °F)
28 °C (82 °F)
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.
1 s
Rittal enclosure cooling unit