Resol DeltaSol MX controller is a free-programmable controller with 15 inputs and 14 relay outputs; MX gives you flexibility to combine solar thermal and hydronic heating functions to control your solar and/or hydronic systems. For example, "Function Block" logic of the MX allows you to apply two temperature settings, one temperature differential and 4 reference relay logics: OR, AND, NOR and NAND to control a relay output. A MX controller includes all possible logics for a solar thermal system and popular hydronic heating/cooling control logics, heating/cooling mode switch over automatically, as well as energy saving logic when solar heating and hydronic heating work together.
It is an all-in-one human interface controller for solar thermal, hydronic heating, hydronic cooling control, and can be applied to convential heat sources and heat pump systems.
You can find more details at our website: Resol DeltaSol MX, Comprehensive Hydronic Controller- MX Controller
Up to date firmware 2.0.8 Resol MX Installation Manual