this NTC thermistor sensor ensures the control logic receives accurate resistance signals to prevent short-cycling and optimize thermal efficiency in Lochinvar Knight and A

low-water cutoff protection

If the furnace blower runs continuously while the burners remain off

this unit is an intermittent duty solenoid

The KMC VTD-1405 is specifically engineered to fit standard 1/2-inch diameter damper shafts

Lennox 12L77 Motor 340155-7024 this NTC thermistor sensor ensuresThe Lennox 12L77 Blower Motor is a high performance 460V 1PH 1 3HP 1075RPM motor designed for heavy duty HVAC applications, including packaged units and RTUs. Engineered for precision and longevity, this PSC motor features a durable ball bearing system and a standard 48 frame design, ensuring smooth operation in horizontal mounting positions. As a critical OEM replacement motor, it is compatible with a wide range of Lennox and Allied Air equipment,