Cleveland Controls RFS-4001-038 Pressure Switch technicians should retain the original

technicians should retain the original mounting brackets

This part number refers to the 1/2" aluminum orifice itself

Always verify the derating requirements based on the installation's elevation above sea level

or VA-8052 actuator onto a VTM Series terminal unit valve body in the field

including the 1D51W

Cleveland Controls RFS-4001-038 Pressure Switch technicians should retain the originalThe Cleveland Controls RFS 4001 038 is a professional grade airflow pressure sensing switch designed for robust performance in HVAC and energy management systems. Engineered to detect positive, negative, or differential air pressure, this adjustable pressure switch features a set point range from 0. 15" w. c. to 5. 0" w. c. with a specialized progressive differential for precise calibration. This model is a direct replacement for RFS 4001 025 and