Lochinvar & A.O. Smith 100278092 Switch 321894-709 Ensure your controller is scaled

Ensure your controller is scaled correctly to interpret the 4-20mA signal across this specific amperage span for accurate data logging

maintaining a safe fluid temperature range from -20°F to 240°F

Compact frame design fits standard Aaon electrical sub-panels and DIN rail mounts

Simplified Installation: Features a drop-in design that requires no additional capacitors or complex field wiring adjustments

Lochinvar & A.O. Smith 100278092 Switch 321894-709 Ensure your controller is scaledThe Lochinvar & A. O. Smith 100278092 Switch is a critical safety and operational component designed for high performance commercial boilers and water heaters. As a factory authorized OEM flow switch, this assembly ensures the burner circuit only energizes when adequate water velocity is detected, protecting the heat exchanger from dry fire conditions and thermal stress. The unit comes integrated with a durable brass tee specifically sized for CC120