Universal Compatibility: Optimized for use with POE and PVE lubricants and compatible with most HFC and HCFC refrigerants

and evaporative coolers

Common Questions Is the 1F78-151 compatible with 2-wire heat-only systems

and larger range R68AC0009 units

This 440Vac unit is fully compatible with 370V systems

Cleveland Controls RFS-4001-030 Pressure Switch Universal Compatibility: Optimized for useProfessional grade air pressure sensing is critical for proving fan operation and burner efficiency. The Cleveland Controls RFS 4001 030 is a field adjustable differential pressure switch designed for HVAC and energy management applications. Built with a rugged plated housing, it effectively monitors positive, negative, or differential air pressure with high accuracy. The unit features an adjustable set point range from 0. 15" w. c. 0. 05" to 5. 0" w.