7 Operation
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Rittal enclosure cooling unit
7
Operation
The cooling unit is operated from the display on the front
of the device (fig. 2 or fig. 3, item 4).
7.1
Control via the display
Fig. 51:
Display
Key
1
"NFC" icon
2
"Master" icon
3
"Slave" icon
4
7-segment display (3x)
5
"Celsius" unit
6
"Fahrenheit" unit
7
"Down" arrow key
8
"Up" arrow key
9
Home key
The cooling unit operates automatically, in other words,
as soon as the power supply is switched on, the evapo-
rator fan (see fig. 1, item 10) will start running and circu-
lating the air inside the enclosure.
The compressor and condenser fan are regulated by the
controller.
The display has a three-digit, 7-segment display (fig. 51,
item 4). After switching on the power supply, the internal
temperature appears here after a short time (approx. 10
seconds) and will be permanently displayed as long as
there are no error or system messages. If such messag-
es do occur, they will alternate with the temperature dis-
play.
The device is programmed using the control compo-
nents on the display (Home and OK keys and arrow
keys). The relevant parameters also appear in the dis-
play.
7.2
General information about programming
Use the arrow keys and the Home key directly on the
display to set the main parameters within the preset
ranges (min. value – max. value).
In principle, the programming of all editable parameters
is identical.
To operate the touch elements, place one finger fully
over the marked or illuminated key.
To enter programming mode:
Briefly press the Home key.
In addition to the displayed internal temperature, the
Home key and both arrow keys on the display will be
back-lit.
Press the Home key again for approx. 3 seconds.
"Cod" will appear in the display.
Briefly press the Home key again.
Set the device PIN using the arrow keys.
The number "22" is preset by default.
Press the Home key again to confirm the set code.
If the code has been correctly entered, the "tSE" (tem-
perature settings) menu will appear. If no entry is made
for 15 seconds, exit the menu and the start screen will
automatically appear showing the interior temperature.
Alternatively, keep the Home button pressed down for
approximately 6 seconds.
This will take you straight back to the start screen.
After activating programming mode, you can navigate
through the menus and change the settings as follows:
Press on the arrow keys to page through all menus
and settings at the current level or to increase or re-
duce a number.
Briefly press the Home key to switch to a sub-menu.
Press the Home key for around 3 seconds to switch to
the menu above or to confirm a setting (within the pre-
scribed limits).
If a number or setting is changed, the message "ACC"
will appear in the display for approximately 1 second.
After that, the next menu up will appear.
More extensive settings can be made with the Rittal
Scan & Service app via the NFC interface (see sec-
tion 7.5 "Rittal Scan & Service app").
7.3
Updater program
Software updates can be carried out using the Updater
program. The USB-C interface on the rear of the cooling
unit serves as an interface.
The Updater program can be found in the Downloads
section of the product website.
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