WATER GUARDIAN
Electro-Mechanical
System Diagrams

Re-Circulating Hot Water Systems By Koenick Electronics Int'l.
A "People Friendly" System

Option B - Complete Home System
(Check Valve Method)
CVA 2 or CVA 3 (Check Valve Assy.) to be installed under "distant most sink" or sinks, to provide recirculating loop, back to Water Heater Unit cold input side, by way of the existing cold water plumbing lines.
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