Resideo NK300S-100 Valve 320735-701 meaning it will automatically reset

meaning it will automatically reset itself once the temperature falls back within the safe operating range (80°F)

enabling technicians to fine-tune the temperature accuracy if the burner or element cycles out of spec

designed to protect critical equipment like pumps

This genuine Lochinvar 100208243 is engineered with a specialized

Resideo NK300S-100 Valve 320735-701 meaning it will automatically resetThe Resideo NK300S 100 Valve is a professional grade boiler feed combination valve designed for rapid system commissioning and robust backflow protection in closed loop hydronic heating systems. This high capacity 16 GPM unit integrates a testable double check backflow preventer, an adjustable pressure reducing valve, and dual shut off ball valves into a single brass housing. Built for high demand residential and light commercial applications, the