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Includes a 2-foot RJ45 style cable for flexible remote interface positioning away from the main chassis
Simply align the mechanical actuator with the contactor's moving crossbar and slide until locked
Enhanced Contact Life: High-performance alloy contacts prevent welding and pitting during frequent cycling
Bypassing a furnace safety switch is dangerous and can lead to carbon monoxide leakage or equipment damage
Lennox 21L14 Controller 318172-701 Includes a 2-foot RJ45 styleThe Lennox 21L14 Controller (catalog number 106855 01) is a critical M4 W4 CORE Unit Controller Replacement kit designed for high performance management of Lennox commercial rooftop units and split systems. As a genuine OEM Lennox HVAC control board, it functions as the primary logic module, processing multi sensor inputs to execute precise HVAC system sequencing, ignition timing, and blower motor coordination. This integrated furnace control is
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