Johnson Controls P499ACP-105 Pressure Transducer 321894-708 A yellow reading typically indicates

A yellow reading typically indicates moisture concentrations above 100-150 ppm

ensuring the system returns to its normal position within 15 seconds during a power interruption

the bi-directional design includes internal check valves

Technicians should measure the DC microamp signal at the flame rod terminal

For overpressure protection

Johnson Controls P499ACP-105 Pressure Transducer 321894-708 A yellow reading typically indicatesThe Johnson Controls P499ACP 105 Pressure Transducer is a heavy duty solution designed for precise pressure monitoring in commercial refrigeration and HVAC R systems. Field tested for reliability, this sensor features a 0 500 PSI pressure range and provides a 1% total error band for highly accurate performance. The 4 20 mA output signal ensures a stable, linear linear transmission of data even in high interference environments, making it compatible