Welcome to the New Keller Supply Website - Our new website is now live. Enjoy improved product search, enhanced navigation, and an upgraded online experience. We welcome your feedback as you explore the new site.
In a cascade system the Master boiler requires a system supply sensor in order to operate properly. The location of the sensor should be downstream of the of the boiler connection in the main system loop.
Rinnai® 803000051 Cascade System Sensor, For Use With: Rinnai® Commercial Boilers and Cascade System Master Boilers