Variable speed system driven by frequency converter Construction Variable speed system driven by frequency converter, for the pressure control in domestic and residential plants. The unit more compact and easy to assemble. Variomat 2 is supplied with integrated pressure transducer. Connection ports are available with G 1 1/4 and G 1 1/2 thread and are interchangeable. Applications Automatic frequency inverter control for use on pumps to increase network pressure. The system maintains constant pressure whilst the controlling the pump operation against changing system demand. For protection of the pumps: – Against dry running – Against operations with closed connection ports – Against overcurrent of the motor – Against overvoltage and undervoltage of the power supply Operating conditions Standard voltage: 400 V ±10% (380-415V) three-phase Max working pressure: 16 bar. Frequency: 50-60 Hz Protection: IP 65 Max Ambient temperature: 60°C Max liquid temperature up to 60 °C Minimum Flow: 1 l/min Altitude: no higher than 1000 m, inside a closed environment. Construction Features Constant pressure The Variomat 2 via a frequency inverter keeps the pressure constant as the flow demand changes. Energy saving The variable speed operation ensures that only the energy required by the plant at any instant is used. (Standard execution) The system comprises of: - Frequency converter. - Pressure transducer. - Pipe housing. - Fixing screws. - Terminal board. - Cable glands. - Multi-hole gaskets. System reliability A float switch can also be integrated to further protect against dry running. Type (single-phase) Easy to use The Variomat 2 has a clear display making it very simple to set-up. Freqeuency converter Standard power max motor current output 400V A Cascade control mode The system flexibility allows via a microprocessor for cascade operation of two variomat's. Dimensions and weights 260 kg 5 PRESSURE RESTART PRESSURE Serial Number

Variable speed system driven by frequency converter Control Panel PRESSURE RESTART PRESSURE Serial Number Status indications and system reset The three leds give the informations about the system operativity, the first led indicates the presence of supply, the second led indicates if the pump is operating and the third led indicates if an alarm has occurred in the system. The Reset button allows to manually restart the system when an alarm occur. Programming of the nominal current and absorbed current display The 2 digit display allows to visualize the nominal motor current (in programming mode)...