and extreme weather conditions

specifically designed to regulate the defrost cycle based on demand

Features a 2-terminal design for straightforward electrical connection

Field adjustments are not recommended as they can void the ASME certification and compromise the safety of the boiler system

Does the spark gap need adjustment upon installation

Resideo MX128LF Valve 320819-301 and extreme weather conditionsThe Resideo MX128LF is a heavy duty 1 1 4 inch lead free thermostatic mixing valve engineered for high capacity domestic hot water and hydronic heating systems. Designed for master mixing applications, this large flow mixing valve provides precise temperature control across a 110F to 150F range, making it a standard choice for mechanical contractors managing commercial plumbing systems. The MX Series utilizes a proportional valve with a thermostatic