Ecofit / Backward Fans

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Standard specifications
Ball bearings.
Cl.F windings protected by impedance or by thermal cut-out.
Protection IP 44.
Balancing G2.5.
Galvanized steel or plastic impeller.
Zinc coated guard.

Conditions of use

Ecofit Backward conditions of use

Backward-curved centrifugal impellers are of high efficiency and can be used without a scroll housing. If necessary, they can be installed in circular, rectangular, or scroll shaped housings providing there is sufficient clearance to the side-wall. All performance data contained herein relates to measurements taken with ECOFIT standard inlet and discharge conditions. Any modifications to inlet or discharge will result in changes in the performance data. Special constructions with pre-assembled inlet rings are presented herein.
ECOFIT motors are speed controllable by voltage variation, but where electronic controllers are used they must be designed for electric motor duty and be compatible with ECOFIT products. Capacitors must be of the "motor run" type and be of the recommended value, voltage rating, and life expectancy.
The customer must test for motor total temperature in the application, with the worst operating conditions for the motor. ECOFIT should then validate the test results.

Recommended installation

Ecofit backward Recommended installation


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