factory-set at 3

it is an essential HVAC temperature controller that prevents mechanical strain by automatically cycling equipment when thresholds are met

A clogged orifice often manifests as a yellow

This genuine OEM York part is the primary replacement for technicians servicing residential and light commercial equipment

Tamper-Resistant Configuration: The no-thermometer design and integrated logo plate provide a professional finish that discourages unauthorized adjustments

Lennox 60L23 Pressure Switch 321702-401 factory-set at 3The Lennox 60L23 Pressure Switch is a critical safety component designed for specific Lennox furnace and air handler applications. This differential pressure switch features a fixed setpoint of . 49" WC (water column), ensuring the inducer motor is moving sufficient combustion air before the ignition sequence begins. Engineered for durability in high cycle environments, this SPST (Single Pole Single Throw) switch utilizes a 1 4" barb connection for