Additional safety instructions | 2
Operating instructions CMVpro 125-400 | Version 1-en
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The impeller, inlet cover, and casing of the fan are marked with an abbreviation
for material identification.
• The order confirmation or the additional specification sheet contains fur-
ther information and notes regarding a potential reduction in service life
of the fan.
3.
The following apply if, according to the operator’s information, the conveyed
medium contains several chemical substances:
• The named importer or the manufacturer confirms the resistance of the
fan to these chemical substances in the order confirmation or the speci-
fication sheet, which is an associated document.
• The service life of the fan can be limited if there is a corresponding note
in the order confirmation or the specification sheet.
Permissible environmental conditions
1.
The permissible operating and ambient temperature ranges are indicated on
the fan nameplate.
The minimum permissible operating temperature for the plastic parts of the
fan is -20 °C.
2.
The following applies if this information is missing from the nameplate:
• Permissible ambient temperature of the electric motor: -20 °C bis +40
°C
3.
At operating temperatures below 4 °C, it is to be ensured by means of a
constant minimum flow rate that
• no condensate freezes in the fan or ductwork.
• no pieces of ice from the ductwork get into the fan.
Procedure for process changes
• The operator is to ensure upon a process change that
• the fan can withstand the parameters changed or the new conveyed
medium,
• the operating conditions according to the technical data sheet and
nameplate plate are adhered to.
Operating conditions
• The permissible operating conditions of the fan are defined by the parame-
ters and limit values on the technical data sheet or on the nameplate.
Note especially:
• Maximum speed, which is dependent on
• the temperature of the conveyed medium,
• chemicals present and their concentration in the air stream.
• Prevention of excessive self-heating:
• The operating point (see diagram on the technical data sheet) shall be
above the minimum permissible conveyed volume.
• So that no or minimal conveyed medium escapes from the impeller hub,