Lochinvar & A.O. Smith 100208502 Relay 340155-7024 while the CCW rotation (lead

while the CCW rotation (lead end) matches original equipment specifications for single-phase

Use the range adjustment screw to set the opening point within the 70 to 260 PSI range while the system is operating under load

An air-fuel or oxy-acetylene torch with a neutral to slightly carburizing flame is standard

this is a safety relief device designed only for emergency overpressure events

The 21L98 is the exact same component as the 21L9801

Lochinvar & A.O. Smith 100208502 Relay 340155-7024 while the CCW rotation (leadThe Lochinvar & A. O. Smith 100208502 Relay is a high performance 1. 5HP pump relay kit engineered for precise load management in commercial and residential hydronic systems. As a critical OEM replacement part, this heavy duty relay ensures seamless electrical sequencing for 1. 5 horsepower circulation pumps, preventing motor lag and protecting the integrated control board from high amperage spikes. This component is widely utilized across the