Control; Safety Equipment; Filter Mats; Proper Use - Rittal SK 3237.xxx Assemble And Operating Instructions

3 Device description

3.1.2 Control

EN
Rittal fan-and-filter units may be controlled
more efficiently using a thermostat (Model
No. SK 3110.000), digital temperature
display (Model No. SK 3114.200), tem-
perature-dependent speed control
(Model No. SK 3120.200) and/or hygrostat
(Model No. SK 3118.000).
Control unit (Model No. SK 3235.440) for
fan-and-filter unit SK 3245.xxx only.

3.1.3 Safety equipment

The fan is equipped with thermal winding
protection devices for protection against
excess current and even, in some cases,
against overtemperature. For rotary cur-
rent fans, the winding protection is located
in the star earthing of the motor.

3.1.4 Filter mats

The fan-and-filter unit/outlet filter is sup-
plied with a standard filter mat already
installed. Depending on the incidence of
dust, you will need to replace the filter mat
from time to time.
In order to increase the protection catego-
ry, and in the case of dust with a grain size
of < 10 µm, we recommend the use of fine
filter mats.
Note:
The air throughput volume
will be reduced.
Special filter mats are required
for EMC fan-and-filter units
(see accessories).
6

3.2 Proper use

Rittal fan-and-filter units were developed
and designed in accordance with the
state of the art and the recognised rules
governing technical safety. Nevertheless,
if used improperly, they may pose a threat
to life and limb or cause damage to prop-
erty. The unit is only intended for ventilat-
ing enclosures and electronic cases. Any
other use is deemed improper. The manu-
facturer will not be liable for any damages
caused as a result of improper use, or for
incorrect assembly, installation or use.
All risk is borne solely by the user.
Proper usage also includes the observa-
tion of all valid documents and compli-
ance with the inspection and servicing
conditions.

3.3 Scope of supply

The fan is supplied in a packaging unit in
a fully assembled state and ready to con-
nect.
Please check the scope of supply for com-
pleteness.
Qty.
1
4
1
1
Tab. 1: Scope of supply
Rittal fan-and-filter unit assembly and operating instructions
Description
Fan-and-filter unit
– Mounting screws
(not for SK 3237.1xx
to SK 3239.1xx)
– Assembly, installation and
operating instructions
Drilling template, self-adhesive