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

Rugged Reliability: Constructed with a magnetic drive and an adjustable spring assembly for consistent performance under high-pressure refrigeration cycles

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

Designed with a Single Pole Double Throw (SPDT) switch

What causes an Armstrong furnace electrode to fail

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