Johnson Controls A99BB-300 Silicon Sensor Industry best practices suggest monitoring

Industry best practices suggest monitoring the pressure drop across the filter

This switch is typically rated for 24V pilot duty in furnace control strings

check for 120V at the ignitor plug during the startup cycle

Designed with a precise

Designed with a 110-120Vac 50/60Hz coil

Johnson Controls A99BB-300 Silicon Sensor Industry best practices suggest monitoringFor high accuracy temperature sensing in commercial refrigeration and HVAC systems, the Johnson Controls A99BB 300 Silicon Sensor is a reliable industry standard. This passive PTC silicon sensor features a Positive Temperature Coefficient, where resistance increases linearly with temperature, providing a reference resistance of 1035 ohms at 77? F (25? C). Equipped with a 9. 75ft PVC cable, this sensor is designed for high moisture environments with a