The 100–10k ohm potentiometer feedback is proportional to the shaft position

eliminating the need for complex linkages or calibration

this round-style component provides the necessary phase shift for both the compressor and the outdoor fan motor

and 6") for broad pipe size compatibility and a sensitivity adjusting screw for fine-tuning

Lochinvar & A.O. Smith 100208666 Cutoff Freon The 100–10k ohm potentiometer feedbackThe Lochinvar & A. O. Smith 100208666 Low Water Cutoff Manual Reset is a critical safety component designed to protect high efficiency hydronic systems. As a direct OEM replacement part for WTR2530 and WTR2530K, this probe type LWCO sensor ensures the burner circuit remains de energized during low water conditions, preventing catastrophic heat exchanger failure or "dry firing." Engineered specifically for the Lochinvar Power Fin series (models PB PF