this York HVAC furnace limit switch prevents heat exchanger damage by breaking the circuit if internal plenum temperatures exceed safe operational thresholds

Precision Sensing: High-sensitivity diaphragm detects minute changes in static pressure to prevent delayed ignition

Flexible Routing: The combination of a straight and 90-degree fitting allows for tight-radius bends and clean cable management in crowded mechanical casings

this specific model is a pneumatic regulator designed exclusively for compressed air and non-corrosive gases

Rugged NEMA 1 Enclosure: Provides a durable

Johnson Controls A70BA-18 Temperature Control R-410A this York HVAC furnace limitThe Johnson Controls A70BA 18 Temperature Control is a heavy duty low limit freeze protection thermostat engineered for critical refrigeration and heating applications. Designed with a single pole, single throw (SPST) contact structure, this "Open Low" control is specifically built to protect HVAC coils from freezing by opening the circuit when the sensed temperature drops to the user defined setpoint. With a temperature range of 15F to 55F and a