Johnson Controls A19ADC-31 Utility Thermostat 30067439-890 a "locked out" system that

a "locked out" system that won't restart after cooling

preventing compressor slugging while maximizing cooling capacity

Optimized Performance: Engineered to restore factory-spec operation to economizer and ventilation dampers

Always verify the total BTU capacity of the system when changing spring ranges

Johnson Controls A19ADC-31 Utility Thermostat 30067439-890 a "locked out" system thatThe Johnson Controls A19ADC 31 is a heavy duty utility thermostat engineered for high limit temperature control in HVACR systems demanding a manual reset safety mechanism. This SPDT open high controller operates across a 100? F to 240? F (38? C to 116? C) setpoint range, making it an essential component for monitoring coil discharge or preventing overheat conditions in industrial duct heaters and boilers. The unit features a 6 foot capillary and