Operation and Maintenance Manual for Rosenberg
Compact ventilation appliance series SupraBox Comfort
Overhead devices
BA 113 BB 10/12/A/SupraBox
21
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Check of the gap and the gap coverage between wheel and inlet cone
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The gap S should be constant on the entire perimeter of the wheel.
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The gap cover R should be about 1 to 2 % of the wheel diameter.
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Adjustment of the cone:
- If the wheel is rubbing at the cone after installation of the unit adjust it as follows:
Abb.: Adjustment of the cone
Picture: gap of the fan
Unlock the six M6 hexagon ratchet
screws with help of the appropriate
tool. Arrange the cone until the wheel
is no longer rubbing and is easy and
free moving. The gap between cone
and wheel should have a constant
size. Lock the ratchet screws.
