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AC Fans

AC Fans are used as part of an HVAC system, providing air flow for ventilation, circulation, and cooling. The S4E250-BI02-72 is one example of an AC fan, designed for use in residential and commercial applications. In this article, we\'ll look at the application field and working principle of the S4E250-BI02-72.

Application Field

The S4E250-BI02-72 AC fan is designed for both residential and commercial applications. This fan can be used in a variety of locations, including:

• HVAC systems in homes and offices.
• Air conditioners and refrigerators in commercial buildings.
• Computer cabinets, server racks, and other electronic equipment.
• Air handlers and other specialized equipment.

The fan can be used in environments with up to 85% relative humidity. It is also resistant to corrosion and has a high temperature rating of 104°F (40°C).

Working Principle

The S4E250-BI02-72 AC fan is a dual-speed motor with two speeds for different airflow requirements. The fan has a speed range of 610 to 2490 CFM, an airflow efficiency of 0.4 to 0.6 W/CFM, and a sound power of 33 dBA at 2490 CFM. The fan\'s two speeds can be set using the onboard red/blue control switch.

The fan contains a three-phase, squirrel-cage induction motor with a synchronous belt speed regulation system. It has a maximum operating voltage of 220 Vac and an insulation system with an IP44 ingress protection rating.

The fan also features a unique “oil-free” bearing system, which allow for very low noise, vibration, and wear. The bearing system consists of a pair of heated ball bearings and two graphite-coated rings, which help reduce friction and noise.

Conclusion

The S4E250-BI02-72 AC fan is a highly efficient fan designed for both residential and commercial applications. Its dual speed motor and oil-free bearing system make it an ideal choice for HVAC systems, air conditioners, and other electronic equipment. With its resistance to corrosion and high temperature rating, the S4E250-BI02-72 is well suited for extended use in a variety of locations.

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