
4 | Structure and function
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Operating instructions CMVpro 125-400 | Version 1-en
4.3.10
Motor cover
• Optional accessory able to be retrofitted.
• Protects electric motor or electric motor with at-
tached FC (accessory) from the weather.
• For mounting instructions
_
Fig. 14:
Motor cover
4.3.11
Protective grid
•
Required accessory for free sucking and/or
blowing out installation,
as access and safety
protection.
• Gets permanently installed (welded) to the free-
sucking inlet connection and/or to the blowing
outlet connection.
• Entry protection as well as protection against in-
filtration of contamination and foreign objects
(IP20 degree of protection).
•
NOTICE
Protective grid not suitable for con-
nection to ductwork (increased pressure loss).
Fig. 15:
Protective grid
4.3.12
Hub seal
• Optional.
• Use with hazardous, aggressive
conveyed media when the fan is
operated in an overpressure condi-
tion.
• Wear part
• For mounting instructions, see
_
66].
Fig. 16:
Hub seal