Rittal SK 3126.230 Assembly And Operating Instructions Manual - 5 Commissioning
5 Commissioning
RITTAL Compact split cooling unit assembly and operating instructions
31
EN
4.7 Finalising assembly
4.7.1 Installing the filter media
The entire cooling unit condenser is covered with a
dirt-repelling, easy-to-clean RiNano coating. In many
cases, therefore, the use of filter media is unneces-
sary, particularly in the case of dry dusts.
For dry, coarse dust and lint in the ambient air, we
recommend installing an additional PU foam filter
mat (available as an accessory) in the cooling unit.
For air containing oil condensate, we recommend
the use of metal filters (also available as an accesso-
ry). When used in textile plants with heavy lint con-
tamination, lint screens should be used (available as
an option).
• Pull the louvred air inlet grille from the enclosure.
• Insert the filter mat into the louvred grille as shown
in Fig. 7 and push it back onto the enclosure.
Fig. 7:
Installing the filter mat
4.7.2 Setting the filter mat monitor
(only with Comfort controller)
Function of the filter mat monitor:
Dirt on the filter mat is automatically detected by
measuring the temperature difference in the external
circuit of the cooling unit
(see Section “6.1.5 Pro-
gramming overview”, page 34). As the level of filter
mat soiling rises, the temperature difference will in-
crease. The nominal value of the temperature differ-
ence in the external circuit adapts automatically to
the relevant operating points in the performance dia-
grams. Hence, there is no need to readjust the nom-
inal value for different operating points of the cooling
unit.
5
Commissioning
• Once all the assembly and installation work is com-
plete, switch on the power supply to the cooling
unit.
The cooling unit starts running:
– With Basic controller: The green operating LED
(“line”) is illuminated.
– With Comfort controller: The software version of the
controller first appears for approx. 2 seconds, then
the safe internal temperature appears in the 7-seg-
ment display.
You can now make your individual settings on the
unit, e.g. set the temperature or (with Comfort
controller only) assign the network identifier, etc.
(see Chapter “6 Operation”).
Caution! Risk of damage!
The oil must be collected in the com-
pressor in order to ensure effective
lubrication and cooling.
Do not operate the cooling unit for at
least 30 minutes after assembling the
equipment.