The high-tolerance construction ensures long-term reliability in demanding boiler room environments

System Protection: Provides essential high-limit detection to prevent heat exchanger damage and hazardous operating conditions

it utilizes a chemical-resistant silicone seat disc that ensures tight sealing even under low-flow conditions

Using it with water or other fluids can compromise the internal diaphragm and poppet assembly

which is essential for accurate airflow modulation and building automation system (BAS) calibration

Johnson Controls A19ZBC-6 Thermostat Els PW 29614 The high-tolerance construction ensures long-termThe Johnson Controls A19ZBC 6 Thermostat is a heavy duty single stage temperature control designed for demanding commercial and industrial HVACR applications. Engineered with a Single Pole Double Throw (SPDT) switch, this utility thermostat provides reliable automatic reset functionality for both heating and cooling equipment. The unit features a versatile 0 to 70 degree Fahrenheit temperature range with a highly adjustable 12 to 40 degree