ΔT=20⁰ F/11K, Max. Output/Range of Application is 62.7 KBTU/H
Use in closed loop design. Low Temperature Zone Module K38 replaces conventional injection mixing systems. In conjunction with an electronic reset control and a direct drive actuator, the K38 modules a 4-way valve, diverts and mixes radiant return water with hot water from the boiler. The constant speed system circulator delivers the required water temperature to the radiant loop manifolds.
Sizing and Piping: The K38 can handle radiant load demands of up to 62.7KBTU/h when ΔT is 20ºF/11K.
Your current method of zoning the radiant loops (manifolds, zone valves, etc.) does not change with the installation of the K38. Multiple K38 modules can be used to separate the distinctive temperature requirements between manifolds. No special piping, just 2 connections and your installation is complete.
K38 User Manual