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Precision Alignment: Facilitates exact motor positioning to ensure the drive belt maintains a 1/4 inch deflection at mid-span under 5 lbs of force
a critical requirement for many late-model condensing units
Robust Enclosure: Includes a factory-installed junction box for enhanced moisture protection and electrical safety
making it versatile for various electrical configurations found in multi-family residential and hospitality ventilation systems
Lennox 11J12 Pressure Switch 328140-751 Precision Alignment: Facilitates exact motorEnsure your combustion air system is operating within manufacturer parameters with the Lennox 11J12 Pressure Switch. This critical safety component is a high altitude specific differential switch designed for Lennox furnace repair and maintenance, featuring a factory set . 85" WC pressure switch actuation point. Engineering for precise draft proving, this part monitors the static pressure within the inducer housing to confirm proper venting before
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