Comefri USA, Inc.

HVAC fans-ATZAF FF

FEATURES:

• Steel impeller with 10 (x2) Airfoil blades, continuously welded. Wheel diameters range from 12” to 49”.

• Galvanized inlet cone with Forefinger (patented) and housing.

• Housing spot welded up to size 18’’, with Pittsburgh closure from size 20”

• Low maintenance ball or roller bearings

• Impeller with shaft statically and dynamically balanced at G 2.5

• Trapezoidal cut-off

BENEFITS:

• Suitable for applications up to 13.5” WG SP and volumes to 130,000 CFM

• Peak efficiencies over 80%

• Easy interchangeability with ATLI models thanks to standardized dimensioning.

FOREFINGER BENEFITS:

• Increased airflow and pressure: for a required volume and pressure the fan can run at lower rpm or can be selected smaller

• More uniform flow at the fan outlet for improved filter and coil efficiency

• Wider working range with high efficiency

• Significant reduction of noise, especially in the low frequencies