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Mahogany paper grain — description and returns beneath the overlapping buy card.
The HVAC air pressure sensor utilizes high-sensitivity diaphragms and normally open (N/O) silver-alloy contacts to provide reliable continuity and integrated safety logic
ensure you are using a relay or motor starter
Precise Pressure Modulation: Maintains consistent evaporator pressure regardless of fluctuations in suction header pressure
The 21L98 is the exact same component as the 21L9801
Use the range adjustment screw to set the opening point within the 70 to 260 PSI range while the system is operating under load
Lochinvar & A.O. Smith 100208502 Relay 340155-7024 The HVAC air pressure sensorThe 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