Lennox 27K12 Limit Switch Els PW 17895 The Carrier 72909 Contactor is

The Carrier 72909 Contactor is a heavy-duty 3-pole definite purpose contactor designed for rigorous switching applications in residential and commercial HVACR equipment

verify the part number against your unit's specific technical guide or look for the 20-inch lead configuration on your current sensor

Zero Maintenance Design: Operates without the need for lubrication

hydraulic systems

the McDonnell & Miller SA21-38R includes a precision-manufactured basket and a Tetraseal O-ring to ensure a leak-proof seal during the reassembly process

Lennox 27K12 Limit Switch Els PW 17895 The Carrier 72909 Contactor isThe Lennox 27K12 Limit Switch is a critical safety component designed for precise thermal regulation within various residential furnace and HVAC systems. Engineering as a normally closed (NC) switch, this automatic reset limit switch is tasked with monitoring heat exchanger temperatures to prevent hazardous overheating conditions. It features a specific 3 inch insertion depth, allowing for accurate probe placement within the supply plenum air stream.