Preassembled MINIKIT for distribution and regulation mod. PF with double temperature for RDZ underfloor systems and high-temperature installations. It includes a closing by-pass for primary circuit, a zinc-plate steel cabinet with adjustable feet, brackets, a protective cover, a white door with adjustable frame and lockset, a 3-way mixing valve and a thermostatic head with temperature range up to 50 °C (for heating only), a high-efficiency electronic circulation pump, a micrometric lockshield valve, a one-way valve, shut-off valves, a balancing lockshield valve, vent valves and fill/drain valves, a safety electric thermostat, and a connector to the electrical installation and a wired system. It can be also combined with hightemperature manifolds with shut-off knob (suitable for thermo-electric actuators), and air trap. This unit is suitable for applications up to 120 m².