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the Rheem-Ruud 42-24166-81 Pressure Switch is the definitive OEM replacement for maintaining the safety loop in two-stage gas furnaces
Proper installation of this HVAC drain pan is critical for managing condensation and preventing moisture-related damage to the furnace or air handler cabinet
As a veteran-grade replacement remote control
It is recommended for fluids with a viscosity similar to water or light lubricants to prevent clogging of the 3/64" orifice
Lochinvar & A.O. Smith 100112662 High Limit 320074-702 the Rheem-Ruud 42-24166-81 Pressure SwitchThe Lochinvar & A. O. Smith 100112662 High Limit is a critical OEM safety control designed to prevent terminal damage in high output commercial and residential heating systems. Engineered for hydronic boilers and gas water heaters, this 165 degree limit switch monitors internal temperatures and breaks the electrical circuit if limits are exceeded. As a manual reset safety switch, it requires technician intervention to investigate the root cause of an