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DESIGN AND OPERATING PRINCIPLE
The motor with an external rotor and an impeller with forward-curved blades is attached to the fan
casing. Casing material is aluminium alloy or painted cold rolled sheet steel. The fan inlet is protected by a
grid. The fan outlet is flanged. A gravity damper installed on the outlet side of the fan blocks air access to
the boiler when the fan is turned off.
MOUNTING AND SET-UP
MAKE SURE THE UNIT IS NOT DAMAGED BEFORE OPERATING IT.
OTHERWISE DO NOT USE A DAMAGED UNIT AND CONTACT THE SELLER.
DO NOT MOUNT THE UNIT ON UNEVEN SURFACE. WHILE TIGHTENING THE
FASTENERS DO NOT APPLY EXCESSIVE FORCE TO PREVENT UNIT CASING
DEFORMATION.
Before mounting the unit adjust the weigh position by moving it along the axis so that the gravity
damper closes the outlet opening of the fan.
The fan is mounted to the solid fuel boiler with a flange and screws.
It’s advisable to use a gasket between a flange and a boiler.
Screws and a gasket are not included in the delivery.
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