Johnson Controls A99BB-25 Temperature Sensor While typically mounted vertically for

While typically mounted vertically for optimal airflow across the sensing element

Veteran technicians know that maintaining exact OEM manufacturer specifications is vital for system safety and operational efficiency

Reduced Maintenance: Utilizing an OEM Powers rebuild kit extends the service life of high-cost tempering valve bodies

Ensures accurate combustion air proving by maintaining a -0

Its low-wattage coil

Johnson Controls A99BB-25 Temperature Sensor While typically mounted vertically forThe Johnson Controls A99BB 25 Temperature Sensor is a high accuracy PTC silicon sensor designed for precision monitoring in commercial refrigeration and HVAC applications. This passive Positive Temperature Coefficient sensing element provides a reference resistance of 1,035 ohms at 77? F (25? C), ensuring reliable data for system 450 controls, A419, and A421 series modules. The sensor is constructed with a stainless steel bulb and a 9 3 4 inch PVC