The York S1-024-19082-017 Heat Relay is an essential OEM replacement part engineered for precise thermal management in residential and commercial HVAC systems

this valve features durable construction to handle the thermal stresses of modern high-SEER equipment

and various chemical treatments

For HVACR contractors managing clear water or steam applications

Key Benefits for Technicians Optimized Compatibility: Verified for use with MK-6811 (2-1/2" to 5") and MK-6911 (6") actuators on VB-8xxx globe valves

Lochinvar & A.O. Smith 100158977 Conversion Kit Els PW 29614 The York S1-024-19082-017 Heat RelayWhen you are out on a service call for a Lochinvar Solution Model CB075 to 135 boiler or a compatible A. O. Smith water heater, having the right OEM components is the only way to ensure a reliable fuel conversion. The Lochinvar 100158977 Natural to LP Gas Conversion Kit is a genuine factory engineered solution designed to recalibrate the combustion system for liquid propane. This kit eliminates the guesswork and safety risks associated with non OEM