S-Flex™ Enclosed HVAC Variable-Frequency Drives

The Schneider Electric S-Flex SFD212 enclosed variable frequency drive (VFD) utilizes the Altivar 212 packaged with the most common options required for commercial fan and pump applications. This drive features reliable 3-contactor bypass, 100k A interrupt current (AIC) UL 508C, simple hard-wired interface for BAS, HVAC communication protocols, smoke purge and fan damper control, LCD keypad, AHRI-1210 certified, and compact footprint. This enclosed drive allows building owners, consulting engineers, and contractors to focus on the essentials for commercial building applications.

Because specifying drives can be time-consuming, the S-Flex drive includes the most common requirements in HVAC specifications for fan and pump applications, such as:

• Simple start-up including preprogrammed parameters
• Quick installation with EZ-M mounting
• Easy wiring conduit knockouts on the enclosure
• Dedicated wiring terminal block
• Stock availability with bypass and main circuit breaker

Offering unmatched value in installed cost and functionality, the S-Flex drive allows building owners, consulting engineers, and contractors to focus on the essentials of demanding commercial building applications.

The S-Flex enclosed drive assists with Leadership in Energy and Environmental Design (LEED®) certification. Green buildings enhance occupant comfort and health, decrease vacancy rates, increase building valuation, and improve the bottom line by reducing operating costs. A building that runs smoothly ensures comfortable tenants, and comfortable tenants mean fewer vacancies.

Applications

• Fan applications for heating and cooling, ventilations fans for intake and exhaust, and cooling tower fans
• Pump applications: Chilled and hot water supplies, freshwater pumping, cooling tower pumps