Johnson Controls A19AAC-4 Temperature Control 30067439-890 With the system calling for

With the system calling for cooling

Durable Enclosure: The noncorrosive thermoplastic conduit box protects internal wiring from environmental contaminants

What causes these gaskets to fail

Contractors should verify electrical terminal layouts to ensure seamless integration with the existing wiring harness

Johnson Controls A19AAC-4 Temperature Control 30067439-890 With the system calling forThe Johnson Controls A19AAC 4 is a heavy duty, mechanical temperature control engineered for precision in HVACR applications. Built with a Single Pole Double Throw (SPDT) switch, this line voltage controller acts as a versatile solution for both heating and cooling equipment setups. The unit features a setpoint range of 0 to 80? F, specifically designed for low to medium temperature monitoring where a 5 degree F fixed differential is required for