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Ships within 48 hours · Estimated delivery Sep 12 - Sep 17
OEM Reliability: Built to original manufacturer specifications to ensure correct fitment within Lennox and Allied uncased or cased coils
How do I service the unit if it fails to drain
While it is an OEM York part
technicians should inspect the defrost control board
Watts F121465 Relief Valve L99H008 OEM Reliability: Built to originalThe Watts F121465 LF174A 50 FS is a 3 4 inch lead free pressure relief valve designed for boiler, hydronic heating, and hot water system protection. Rated at 50 PSI, this valve helps prevent excessive pressure buildup that can damage boilers, piping, storage tanks, and connected HVAC equipment. In residential and commercial hydronic systems, pressure relief valves are critical safety components that automatically discharge excess pressure to maintain
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