Preassembled kit for distribution and regulation mod. PF with double temperature for RDZ underfloor system and high-temperature installation. It includes a closing bypass 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), an electronic circulation pump with variable speed, a one-way valve, shut-off valves, thermometers, a balancing lockshield valve, vent valves and fill/drain valves, a safety electric thermostat, an air trap, a connector to the electrical installation and a wired system. It is possible to use either CONTROL brass manifold or TOP COMPOSIT plastic manifold. Optional acessories: - High-temperature outlets, 2 or 3 outlets - Air trap - Control box with safety device