Installation The ECL Comfort controller is a universal controller that canbe used for various systems. Based on the shown standardsystems, it is possible to configure additional systems.In this section you find the most frequently used systems. Ifyour system is not quite as shown below, find the diagramwhich has the best resemblance with your system and makeyour own combinations.The functions can only be realized with ECL Comfort 300 and as ofcontroller version 1.08.10.1 Two indirectly connected heating systemsand secondarily connected storage tankwith built-in heating coilSystem settingsCircuit Line Description Recomm.settingI 17 Influence on desired flow temp. OFFI 43 Priority or parallel operation 99I 51 DHW charging pump /changeover valve OFFI 53 Desired flow temperature atDHW charging OFFI 67Adaptive function of S2 flowtemperature during DHWchargingOFFI 140 Function of temperature sensorS5 0 (1)I 152 Max limitation temperature atsensor S2 during DHW charging 90System diagrams in this instruction are principal drawings and donot contain all components which are necessary in your systems.Identifying the system type10a