Johnson Controls A19ACA-15 Temperature Control 30067439-890 measure across the junction block

measure across the junction block terminals while the pilot is lit

ensuring precise modulation of the burner and pump logic based on real-time fluid temperatures

Cross-Compatibility: Engineered as a drop-in mechanical replacement for the legacy Alco R15E32 series

Using a switch with a different set point than the -

Johnson Controls A19ACA-15 Temperature Control 30067439-890 measure across the junction blockThe Johnson Controls A19ACA 15 is a heavy duty, single stage mechanical temperature control engineered for high precision regulation in refrigeration, HVAC, and industrial cooling applications. This SPST (Single Pole Single Throw) controller features an open low switch action, effectively breaking the circuit when temperatures drop to the set point, making it an ideal choice for freeze protection or low limit safety monitoring. Designed for versatile