Dwyer Instruments 1920-0 Pressure Switch 318973-401 Unlike variable expansion valves

Unlike variable expansion valves

which is critical for efficient fuel combustion

the physical dimensions and terminal mapping of the HN61KK913 must align with the existing wiring harness and mounting bracket to maintain UL compliance and safety standards

allowing technicians to upgrade from electromechanical lube oil control systems to high-precision electronic equivalents like the P545NCB-82

ensuring perfect alignment with original equipment manufacturers' specifications

Dwyer Instruments 1920-0 Pressure Switch 318973-401 Unlike variable expansion valvesThe Dwyer 1920 0 Pressure Switch is a high precision differential pressure switch designed for critical HVAC and industrial process monitoring. Engineered for low pressure applications, this unit features an adjustable set point range of . 15" to . 55" w. c. with a deadband of approximately 0. 10" w. c. Its SPDT switch configuration allows for versatile wiring as either normally open or normally closed, making it a reliable choice for fan status