Publicité
6 Operation
• Carefully raise the trim panel e.g. using your thumb
or a flat screwdriver, and remove it.
GB
Now you can start test mode.
• Hold the rubberised potentiometer display (see
page 22, Fig. 34, item 5) down while you switch the
mains power back on, and keep the button (5) held
down for a further 5 seconds (for access to the
potentiometer, see also 6.1.1).
The cooling unit will commence operation. After
approximately 5 minutes or upon reaching 15°C, test
mode will end. The device cuts out and changes to
normal operation.
6.1.4 Setting the temperature
Note:
In the case of the Basic controller, the
temperature is preset in the factory to
+35°C.
In order to save energy, do not set the
temperature any lower than is actually
necessary.
To change the temperature setting:
• Dismantle the trim panel of the controller as
described in "6.1.3 Test mode for the Basic
controller", page 23.
• Set the required temperature on the temperature
setting device (page 22, Fig. 34).
• Carefully push the trim panel onto the display until
you hear it snap into place.
• Re-insert the display into the infill panel or louvred
grille.
• Re-attach the louvred grille or infill panel to the
cooling unit.
6.1.5 Resetting the Basic controller
Following a high-pressure alarm in the cooling cycle,
and once the cause has been rectified, you will need
to manually reset the Basic controller:
• Dismantle the trim panel of the Basic controller
as described in "6.1.4 Setting the temperature",
page 24.
• Press the reset button (Fig. 34, no. 5) for at least
3 sec.
The red LED is extinguished.
• Re-install the Basic controller.
24
6.2 Control using the Comfort controller
For Model Nos. SK xxxx.500/.510/.540 and
SK
xxxx.600/.610/.640.
1
4
Fig. 36: Comfort controller
Key
1
Programming button, also display of the set
temperature unit (degrees Celsius)
2
Set button
3
Programming button, also display of the set
temperature unit (degrees Fahrenheit)
4
7-segment display
6.2.1 Properties
– Three voltage variants are supported:
– 115 V
– 230 V
– 400/460 V, 3 phases
– Supports multiple voltages without rewiring
– Integral start-up delay and door limit switch
function
– Protective function to prevent icing
– Monitoring of all motors (compressor, condenser
fan, evaporator fan)
– Phase monitoring for three-phase units
– Master/slave function with up to 10 units. One
device functions as a master unit. Once the set
temperature is reached by one of the connected
slave devices or in the event of the door limit switch
function, the affected slave unit will report to the
master unit, which will switch all the other cooling
units on or off as required.
– Switching hysteresis: Settable from 2 – 10 K, preset
to 5 K
– Visualisation of the current enclosure internal tem-
perature and all fault messages in the 7-segment
display
–
Using an interface card (Model No. SK
the unit may be incorporated into superordinate
remote monitoring systems such as the Rittal
Computer Multi Control CMC.
Rittal cooling unit assembly instructions
2
3
3124.100),
Publicité
