a water-rated relief valve (like the Watts 3L or 174A series) must be used

Direct OEM Compatibility: Serves as the official successor to legacy part number 308118-402 for a seamless fit

0 Cv rating ensures minimal flow restriction in 3/4-inch piping for superior zone temperature control

Superior Efficiency: Optimized for R410A refrigerant usage

York S1-025-41349-000 Wiring Harness 319825-402 a water-rated relief valve (likeThe York S1 025 41349 000 Wiring Harness is a critical OEM HVAC replacement part engineered for precise electrical interfacing within residential and light commercial equipment. This 16 pin wiring harness provides the necessary point to point continuity between control boards and system peripherals, ensuring low resistance signal transmission. Designed as a direct drop in for York heating and cooling systems, this harness eliminates the need for field