4 Assembly and connection
EN
12
Rittal enclosure cooling unit
Fig. 15:
Electrical wiring plan no. 3
Key
X1
Main terminal strip
X2
Master/slave connection
X3
Optional interface
K1
Relay collective fault 1
K2
Relay collective fault 2
Door Door limit switch (without door limit switch: terminal 1, 2
open)
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 appli-
cations, therefore, the use of filter media is unnecessary,
particularly with dry dusts.
For dry, coarse dust and lint in the ambient air, we rec-
ommend installing an additional PU foam filter mat (avail-
able as an accessory) in the cooling unit. For air contain-
ing oil condensate, we recommend the use of metal fil-
ters (also available as an accessory). When used in
textile plants with heavy lint contamination, lint screens
should be used (available as an optional extra).
Pull the louvred air inlet grille off the enclosure.
Secure the filter mat in front of the condenser using the
supplied blind rivets.
Then push the louvred grille back onto the enclosure.
4.7.2
Fitting the cooling unit
Connect the connector to the rear of the display.
Place the louvred grille onto the unit at the front, and
press it down until you hear it snap into place.
Fig. 16:
Connect the display and attach the louvred grille
4.7.3
Setting the filter mat monitor
Function of the filter mat monitor:
Dirt on the filter mat is automatically detected by meas-
uring the temperature difference in the external circuit of
the cooling unit (see section 6.1.6 "Programming over-
view"). As the level of filter mat soiling increases, the
temperature difference will increase. The setpoint value
3386.54x/.64x, 3387.54x/.64x
Note:
For technical data, refer to the rating plate.
AC
cos φ = 1
DC
Res. Load
I max. = 2 A
U max. = 250 V
I min. = 100 mA
U max. = 30 V
I max. = 2 A
Tab. 2:
Relay contact data
Содержание Rittal 3273 Series
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