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Simplified Diagnostics: Standardized wire coloring and pin-outs allow for faster troubleshooting and circuit verification
vibration-free operation in demanding HVACR environments
fan sequencing
This 1/2" NPT water gauge set is rated for 500 PSI at 100°F and 250 PSI at 400°F
Patterson-Kelley 86-8335-0170 Air Flow Switch R-407A Simplified Diagnostics: Standardized wire coloringThe Patterson Kelley 86 8335 0170 Air Flow Switch is a critical safety and operational component designed for high performance commercial boilers and water heaters. As an OEM airflow switch replacement, this unit utilizes a sensitive differential pressure diaphragm to detect proper combustion air or exhaust flow. It is engineered to interface directly with Patterson Kelley industrial air flow switch control systems, ensuring the burner only fires when
US$ 25.48
US$ 185.00