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or inducer for underlying failures
making it suitable for demanding indoor and outdoor setups
This OEM replacement pressure switch monitors the pressure differential within the combustion chamber or venting system to ensure safe operation
Versatile Installation: Supports both 3/4" NPT or flange mounting
you need components that match the factory-spec pressure and heat requirements
Patterson-Kelley 86-8335-0170 Air Flow Switch 320788-702 or inducer for underlying failuresThe 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