Resol DeltaSol MX controller has maximum 15 sensor inputs, 13 relay outputs and 1 dry contact relay. Beside its brilliant capability of controlling complex solar thermal systems, it is also an optimal solution to control multi-zone hydronic systems.
All these typical functions are available:
The built in heating curve is necessary for hydronic system “adjusts” supply temperature with considering outdoor temperature ( outdoor temperature reset);
Floating Point control logic for 3-way mixing valve combining with heating curve;
Talking to regular dry-contact room thermostats, executing call for heat and activating zone valves/zone pumps; a MX controller talks to up to 10 regular dry-contact room thermostats simultaneously;
Calling Boiler Demand based on Target temperature or configured supply temperature by heating curve;
Domestic Hot Water ( DHW) Priority Control and/or DHW calls boiler demand;
Grundfos VFS, RPS, VFD and RPD sensors are all two-in-one sensors working with different liquid media such as water and Glycol. Grundfos VFS and VFD measure temperature and flowrate, and Grundfos RPS and RPD measure temperature and pressure.
Resol DeltaSol MX can directly work with Grundfos Sensor VFS, RPS, VFD, and RPD.
Resol DeltaSol BX PLUS can directly woth with Grundfos Sensor VFD and RPD
Resol DeltaSol BX can directly work with VFS and RPS.