typically mounted on the furnace plenum or blower housing

is a high-precision low pressure control switch designed for critical monitoring in residential and commercial HVAC systems

The pitch determines the air volume moved per revolution

Precise Monitoring: Calibrated for a 0-10" WC range

It features a wide adjustable pressure range of 12" WC to 50 PSIG and a field-tunable differential of 5 to 35 PSI

Johnson Controls P170LB-1 Pressure Control R-410A typically mounted on the furnaceThe Johnson Controls P170LB 1 is a professional grade Dual Pressure Control engineered for precise management of both high side and low side pressures in commercial refrigeration and air conditioning systems. This electromechanical controller features a Single Pole Single Throw (SPST) switch action, providing reliable cut out and pump down control by opening the circuit when pressures exceed or fall below your specific setpoints. The low pressure side