Operation and Maintenance Manual for Rosenberg
Compact Ventilation appliance series SupraBox
Comfort
BA 114 AA 03/12/A/SupraBox 1
21
•
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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 operation. Vibrations, pressure
fluctuations or other deviations from the provided parameters should 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
The fan as a fast rotating device needs regular monitoring as well as a three-month maintenance
interval. In case of deviations from the standard operational conditions (air temperature, increased
dust pollution or constant 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
Clean the fan unit incl. wheel
X
Check the wheel for imbalance
X
Check the quiet running and bearing for sounds
X
Picture: gap of the fan
