VARIMIX

VARIMIX allows a revised design of central heating systems, with a new concept of space and functionality.‎ Thanks to system modularity, it is now possible to construct a dedicated distribution system for a single central heating system, guaranteeing a neat and streamlined design to facilitate the work of the installer.‎ VARIMIX is essentially made up of the following basic kits to be assembled and configured according to various system demands: • hydraulic separator (pressure balancer) • modular manifold • direct distribution kit • mixing and distribution kit Each kit features its own insulation casing in polypropylene designed to reduce heat dispersion.‎ Given its size and flexibility, VARIMIX is ideal above all for application inside central heating plants in large houses or blocks of flats with at most 5 or 6 different units (depending on the flow rate requirements).‎ Max.‎ primary flow rate: 4500 l/h Max.‎ flow rate per kit: 3000 l/h PLUS • Easy to install • Compact and neat • Versatile and customisable • Completely reversible • Suitable for heating and cooling HYDRAULIC SEPARATOR • This enables the hydraulic separation of various circulation pumps installed, keeping the various distribution modules independent.‎ • Completely reversible: can be supplied from right or left as required.‎ • Automatic purge valve to remove air bubbles • Filler/drain valve on base to remove waste and impurities.‎ MODULAR MANIFOLD • Enables creation of the main distribution backbone.‎ • Connection between individual manifolds via rotary nipples.‎ • Distribution from bottom to top or vice versa, also with option of creating combined configurations.‎ • Integrated shutoff valves to enable disconnection of distribution module for easier maintenance.‎ DIRECT DISTRIBUTION KIT • High-temperature booster module without mixing.‎ • Used to supply components such as radiators or towel rails or to heat domestic hot water stored in storage tanks.‎ DISTRIBUTION AND MIXING KIT • Distribution module complete with 3 or 4-way sector mixer valves.‎ • The solution with 4-way mixer valves also enables mixing on return to the boiler, thereby avoiding corrosion phenomena due to acid condensation in older generators.‎ • Used for distribution to low temperature utilities such as radiant panels for underfloor heating.‎ • “LT” versions specially designed for applications with low temperature heat sources (e.‎g.‎ heat pumps) • Motorised mixer valves for precision control of supply temperature.‎ • Available in different versions according to the flow factor Kv Mixing valve in low temperature kit is a rotor three way valve, proposed in two versions having different flow coefficients.‎ When in presence of a traditional high temperature heat generator, it is often necessary to increase the return temperature to avoid the onset of corrosion phenomena: in such cases it is possible to choose the kit versions equipped with four-way mixing valve, also available in two variants with different flow coefficients.‎ Regardless the type, mixing valve is actuated by a rotary servomotor with 90°-stroke, connected to a climatic controller.‎ Each component is individually insulated, and the distribution kits with the relative modular manifolds can be installed with upwards or downwards flow lines.‎ VARIMIX can also be used in cooling applications, by uncoupling the operation of heating-only kits from that of heating/cooling kits through the installation of two zone valves between the modular manifolds of the two sections.‎ Materials Cast brass parts: CB753S Other brass components: CW617N Gaskets and o-rings: peroxide EPDM Insulation shell: polystyrene or expanded polypropylene Technical features Max working temperature (except pumps): 120 °C Max working pressure: 10 bar Max flow rate at primary inlet: 4500 l/h Modular manifolds and pressure equaliser: - Primary connections, pressure equaliser connections: G 1 1/4'' F - Centre distance between primary side connections: 100 mm - Secondary connections: G 1 1/4'' F (swivelling) - Centre distance between secondary connections: 100 mm Distribution kits: - Connections to manifold: G 1 1/4'' M - Centre distance between connections to distribution system: 100 mm Further info from manufacturer on VARIMIX IVAR