A four fan system can typically reduce unit length by 4’ or more when compared to a single fan system. However, the space cannot be reduced below what is needed to provide proper service access. Smaller fans require less cabinet length to house their assemblies, and they require less space both upstream and downstream of the fans while still ensuring good air distribution and efficient operations. Offering optimum size fan and motor selections that keep fan diameters larger utilizing higher operating efficiency fan motors and eliminating energy robbing bearings and belt drives all contribute to optimum energy efficiency.įor critical applications that must be capable of 100% airflow at all times, multiple fans ensure 100% air flow even when any one fan is inoperable.įans in multiple fan systems will operate at a higher RPM than on large single fan in an identical application, resulting in reduced sound levels in the hard to attenuate 1st and 2nd octave bands. Airfoil finish Mill finish aluminum Winglet (standard color) Powerfoil plus winglets (safety yellow) Fan diameter (A) 12 ft 14 ft 16 ft 18 ft 20 ft 24 ft Fan weight1 247 lb (112 kg) 273 lb (124 kg) 279 lb (127 kg) 301 lb (137 kg) 355 lb (161 kg) 378 lb (171 kg) Motor 1.5 hp (1.1 kW) 2.0 hp (1. Our spring isolators are designed with seismic restraints as a standard feature. AIRFOIL FAN FULLUnique in the industry, our full range of fans are licensed to bear both the AMCA Standard 210 seal for air performance and the AMCA Standard 300 seal for sound performance. All fans, whether in single or multiple fan configurations, are mounted on spring isolators with seismic restraints, and are available to satisfy the most stringent seismic requirements of the International Building Code.
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