Lochinvar & A.O. Smith 100276752 Valve R-22 and modern HFO blends like

and modern HFO blends like R-448A and R-449A

Tamper-Resistant Safety: Includes secure temperature adjustment sequences to prevent accidental setpoint changes in residential and commercial settings

Multi-Brand Compatibility: Engineered for seamless integration with York S1-2HK16502006 compatible systems across York

It must be paired with selectors and amplifiers that share the same suffix and temperature range to ensure proper calibration

it is compatible with flange sizes ranging from 3/4" to 1 1/2"

Lochinvar & A.O. Smith 100276752 Valve R-22 and modern HFO blends likeThe Lochinvar & A. O. Smith 100276752 is a professional grade 3 4" T&P relief valve engineered for high recovery residential and commercial water heating systems. Designed to function as a critical safety bypass, this valve features a 210F temperature relief threshold and a 150 PSI pressure rating, ensuring protection against catastrophic tank failure. The 3" extended element is specifically designed for units with thick insulation or specific tapping