GRUNDFOS Booster System CMBE3-62 – 98374701

Compact speed-controlled single-pump pressure boosting system Mechanical equipment: - Horizontal, self-priming, multi-stage industrial centrifugal pump type CME-I with stainless steel hydraulics (1.4301) - Speed-controlled permanent magnet motor with high efficiency (eta>=IE4) - 5-way stainless steel manifold (1.4408) with integrated non-return valve - Damped pressure gauge - Pressure sensor (0-10 bar) - Drinking water approved 2l full membrane expansion tank with stainless steel connection, PN 10 The drinking water variant additionally features: - Suction-side stainless steel T-piece with side-mounted pressure switch for dry-run protection monitoring according to DIN 1988-500 (standard setting 1 bar) Electrical equipment: - With integrated software-side dry-run protection monitoring and restart attempts - Control display on the motor with buttons for setpoint adjustment, alarm acknowledgment, system on/off - Integrated motor standstill heater (Grundfos GO) Control: - Software for constant pressure control integrated in the motor - Set pressure is kept constant electronically by changing the pump speed - Electronic soft start of the pump to prevent water hammer in the network - On/off button on the frequency converter control panel - For small consumption requirements, the pump automatically switches to ON/OFF operation - Limitation of the operating range (Grundfos GO) - Setpoint influencing by second analog value (Grundfos GO) - Slowed filling of empty piping systems to protect against pressure surges (Grundfos GO) - Limit value monitoring of the free analog input (e.g. drinking water temperature) with activation of output relays or pump status change (Grundfos GO) - Adjustable ramp times for slow setpoint changes (Grundfos GO) Messages and display: - Display of the set pressure by LED bar on the frequency converter control panel - 2 potential-free changeover relays for alarm and warning (parametrization via Grundfos Go). - Grundfos LED Eye for visual indication of pump status - Possibility of fieldbus connection via optional CIM interface cards - Detailed real-time status values and detailed plain text messages with Grundfos GO (accessory) - Saving/sending pump settings with Grundfos GO (accessory) Inputs/outputs: - 2 (1 available) analog inputs for sensors with 0/4-20 mA, 0-10 V, 0.5-3.5 V (Grundfos sensors), 0-5 V (potentiometer for remote setpoint adjustment) - 2 (1 available) digital inputs or 1 output (+24 V) for status messages, configurable - 2 potential-free output relays (changeover) - +5 V/+24 V power supply for Grundfos sensors or potentiometers - 1 slot for CIM fieldbus interface cards