Operation and Maintenance Manual for Rosenberg
Compact Ventilation Appliance series SupraBox
Comfort
BA 112 BB 11/12/A/SupraBox 1
22
•
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Check of the gap and gap coverage between wheel and inlet cone
•
The gap S should be constant on the entire perimeter of the wheel.
•
The gap cover R should be about 1 to 2 % of the wheel diameter.
7.4.2 Operation
Monitor the fans for correct function during the operation. Vibrations, pressure
fluctuations or other deviations from the provided operating parameters should6 be
checked according to the following chapter.
7.4.3 Maintenance and Cleaning
Monitor the unit operation during the first four to twelve weeks regarding the
following points:
-
Balance, unusual sounds, vibrations
-
Fastening of the fan, the motor and the vibration absorbers
-
For belt driven fans : Belt drive and belt tension
The fan as a fast rotating device needs regular monitoring as well as a three-month maintenance
interval. In case of deviations of the standard operation conditions (air temperature, increased dust or
permanent high humidity) or in case of continuous 24-hours-operation a shorter interval must be
determined.
Maintenance
Fan unit
Every
3 Months
If
necessary
Hygiene
inspection
Check the fan for dirt, mechanical defects, corrosion and
proper fastening
X
X
Check the fan gap
X
Cleaning of the fan incl. impeller
X
Check the impeller for imbalance
X
Check the quiet running and bearing for sounds
X
Picture: gap of the fan
