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Installation, maintenance, service
Figure 8 – Minimum "U", "V" and "Y" clearances (view of fan section)
fan motor stator
fan motor rotor rigidly
connected to the impeller
Table 4 – Minimum "U", "V" and "Y" clearances
Fan
Umin
RP 40-20/20-4D Ex
RP 50-25/22-4D Ex
RP 60-30/28-4D Ex
4,5
RP 60-35/31-4D Ex
4,5
RP 70-40/35-6D Ex
4,5
RP 80-50/40-6D Ex
Anchoring to the ceiling with steel anchors and sus-
pension using threaded rods (see figure 13), perforated
galvanized strips or ancillary construction (see figure 14) is
recommended for RP Ex fans.
The fans can work in any position. When positioned
under the ceiling, it is advisable to situate the fan with its
cup directed downwards to ease access to the motor ter-
minal box.
If transported air is oversaturated with moisture or if the
risk of intensive and permanent steam condensation inside
the fan exists, it is advisable to situate the fan's motor cap
upwards to enable better condensate drainage!
Before installation, paste self-adhesive sealing onto the
connecting flange face.
To connect individual parts of the Vento system, use
galvanized M8 screws and nuts. It is necessary to ensure
conductive connection of the flange using fan-washers pla-
ced on both sides at least on one flange connection, or use
Cu conductor wiring.
fan cup
diffuser
Umax
V
Y
4
8
15
4
8
16
2,5
8,5
20
8,5
25
8,5
27
5
9
29
RP fans * - * / * - ** Ex
# MIN. Y
the gap between the impeller
and fan cup (or fan casing)
Figure 9 – design of the protective grille
inlet grille inside
2
the fan
(for suction)
4
4
4
5
outlet grille in the pipeline
fan casing
# MIN. V
11
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