Rittal 3237 Series Installation Manual page 8

4 Asse b y a d c
4 3 2 Fitti g the fa a d fi ter u it
E
– The fan may be fitted without tools, by
simply snapping into the preconfigured
mounting cut-out
– Make sure that the clips have snapped
into place properly to guarantee secure
mounting
– From a sheet metal thickness of 2 mm,
the clips should be pressed in
individually
– From a sheet metal thickness of 2.5 mm,
the fan-and-filter unit must be screw-
fastened in addition
– To drill the lower holes, it is necessary to
remove the louvred grille as shown in
fig. 2
Fig. 2: Release the louvred grille
– If transporting, it is necessary that you
screw-fasten the fan to prevent it from
falling out of the mounting cut-out.
– The fan-and-filter unit is a rotating com-
ponent that may transfer vibrations and
oscillations. Appropriate measures to
decouple vibration must be taken in
advance by the company responsible
for the overall plant or system.
8
– The protection category can be in-
creased by means of the following
accessories:
– IP 55 by using an additional fine filter
– IP 56 by using a hose-proof hood
4.4 Notes on electrical connection
When performing the electrical connection, it
is important to observe all valid national and
3237.xxx
3238.xxx
regional regulations as well as the provisions
of the responsible power supply company.
Electrical connection must only be carried
out by a qualified electrician who is responsi-
ble for compliance with the existing stand-
ards and regulations.
4 4 1 C
– The voltage and frequency of the con-
3239.xxx
3240.xxx
nection must correspond to the values
3241.xxx
stated on the rating plate
3243.xxx
– Electrical connection and any repairs
3244.xxx
3245.xxx
may only be carried out by authorised
specialist personnel
Use only original spare parts!
– For 1~ and 24 V (DC) fans, install the
pre-fuse prescribed on the rating plate
(circuit-breaker or slow fuse) to protect
against short-circuiting
– With the rotary current variant, install the
pre-fuse prescribed on the rating plate or
a circuit-breaker/back-up protection to
protect against short-circuiting, and set
it to the prescribed rating value
– The direction of airflow and the direction
of rotation are each marked on the motor
housing with an arrow
– If a phase is missing, the fan will not
start. If the rotary field is incorrect, the
fan will run backwards
Rittal fan-and-filter unit assembly and operating instructions
ecti
mat or hose-proof hood
te
To increase the protection cate-
gory, an additional fine filter
mat or hose-proof hood must
be used in both the fan-and-
filter unit and the outlet filter.
ecti data