Emerson Flow Control (Alco) 099027 Single High Pressure Control 90"-450" PS1-X5K

The Emerson Flow Control (Alco) 099027 Single High-Pressure Control is a safety part used in commercial and industrial HVAC systems and refrigeration systems to safeguard compressors from high discharge pressure. This single high-pressure control serves as a safety switch to measure the high-side refrigerant pressure within the system. Its operating Concept is quite simple a pressure-sensitive element within the control responds to changes in system pressure. The 099027 model is set to work in a pressure range of 90 to 450 PSI and the alarm will turn on if the system pressure goes above the set point of the range.