Lochinvar & A.O. Smith 100327314 Pressure Switch Refrigerant always verify your RPZ backflow

always verify your RPZ backflow preventer model before installation

Professional-grade Lennox 21L99 Flame Sensor is a critical OEM replacement part designed to maintain pilot and burner safety through precise flame rectification

Standardized Compatibility: Features standard 3/4 inch NPT solenoid threading for seamless integration into existing piping manifolds

using a blade with a different pitch than the 29-degree factory spec can overload the motor or reduce heat exchange efficiency

Lochinvar & A.O. Smith 100327314 Pressure Switch Refrigerant always verify your RPZ backflowThe Lochinvar & A. O. Smith 100327314 Pressure Switch is a critical safety component designed for high performance HVAC system diagnostics and forced draft combustion control. As a technical professional, you know that maintaining precise pressure differential is non negotiable for safe burner operation. The 100327314 serves as the direct replacement part for legacy models 100166196 and PRS2705. This air pressure switch is engineered to sense the