Johnson Controls A421ABC-03 Temperature Control R-410A providing precise pin and port

providing precise pin and port alignment that prevents liquid pressure fluctuations from affecting valve performance

preventing hazardous conditions resulting from flue gas spillage or heat exchanger breaches

Common Questions: How do I know if I need the first check or second check kit

This industrial temperature controller ensures the circuit remains open until an operator physically intervenes

Johnson Controls A421ABC-03 Temperature Control R-410A providing precise pin and portThe Johnson Controls A421ABC 03 Temperature Control is a versatile, line voltage electronic thermostat engineered for high accuracy temperature management in HVAC and refrigeration systems. Operating on 120 240 VAC, this single stage control features a Single Pole Double Throw (SPDT) relay output, making it the industry standard direct replacement for the A319ABC 07 01 and A419ABC 2 models. The unit provides a broad temperature control range of 40 to