Johnson Controls A19ABC-4 Temperature Control 30067439-890 This HVAC interlock switch features

This HVAC interlock switch features a plunger-style mechanism that integrates seamlessly with existing wiring harnesses

you will typically need the 197032 switch or a model-specific high altitude kit

engineered to handle standard line voltage inputs and output a stabilized DC signal that protects downstream components from voltage spikes and reverse polarity

A healthy Lennox 80M29 should read approximately 30-200 ohms

Specifically designed for 1/2-inch configurations

Johnson Controls A19ABC-4 Temperature Control 30067439-890 This HVAC interlock switch featuresThe Johnson Controls A19ABC 4 is a heavy duty mechanical remote bulb temperature control designed for high accuracy regulation in HVACR and industrial systems. Built with a liquid filled sensing element, this SPDT temperature switch provides dependable single stage control for both heating and cooling applications. It features a broad setpoint range of 50? F to 130? F and an adjustable differential of 3. 5? F to 14? F, allowing technicians to fine