The inclusion of manual reset functionality requires a technician to investigate the root cause of the oil pressure drop before restarting the system

What causes an Armstrong furnace electrode to fail

this 10x10 CCW wheel provides the structural integrity required for long-term reliability in specialized HVACR applications

Secure Pneumatic Interface: The 1/4" barb connection provides a tight seal for sensing tubes

Solid-State Reliability: Eliminates moving mechanical parts within the ignition sequence

Johnson Controls P72LB-1 Pressure Control THPU32HP7Y The inclusion of manual resetThe Johnson Controls P72LB 1 is a robust dual pressure control designed for heavy duty commercial refrigeration and HVAC applications. Featuring a DPST (Double Pole Single Throw) switch mechanism, this all range pressure switch provides direct individual control of single phase motors up to 3 hp and three phase motors up to 5 hp, eliminating the need for separate contactors in many setups. The low pressure side handles a range of 20" Wc to 100 psi