Grundfos 99713438 - Hydro MPC-E 6 CRE 3-6

Hydro MPC-E 6 CRE 3-6 | Pressure booster system supplied as compact packaged assembly certified and listed by UL (Category QCZJ - Packaged Pumping Systems) for conformance to U. S. and Canadian Standards. Approvals: NSF61/NSF372 - Drinking Water and Low Lead approval. OSHPD Seismic certification available on MPC E CR(CUE) systems. All pumps are speed-controlled. Each pump is equipped with an integrated variable frequency drive motor (MLE motor). Hydro MPC-E maintains constant pressure through continuous adjustment of the speed of the pumps. The system performance is adapted to the demand through cutting in/out the required number of pumps and through parallel control of the pumps in operation. Pump changeover is automatic and depends on load, operating hours and fault. All pumps in operation will run at equal speed. The system consists of these parts: vertical multistage centrifugal pumps, type CRE 3-6. Pump rotating parts in contact with the pumped liquid are made of ANSI 304 stainless steel as standard and available as ANSI 316 stainless steel as an option. Pump bases and pump heads are made of cast iron (Class 30) as standard and ANSI 316 stainless steel as an option. The pumps are equipped with the service-friendly cartridge type mechanical shaft seal HQQE (SiC/SiC/EPDM). Suction manifold and discharge manifold made of 316 stainless steel. Base frame made of 304 stainless steel. One non-return valve (check valve), and two isolating valves for each pump. Adapter with isolating valve for connection of diaphragm tank. Pressure gauge and pressure transducer on each suction and discharge manifold. Dry-running protection is standard with use of pressure transducer on suction manifold. Steel control panel with UL Type 3R (MPC E CRE) or Type 12 MPC E CR(CUE) enclosure rating, including main disconnect switch, all required fuses, motor protection, switching equipment, and microprocessor-controlled CU 352. Diaphragm tank is available as an accessory. Pump operation is controlled by CU352 controller, specifically designed to control parallel operation of multiple pumps with the following features/functions: PID controller with adjustable PI parameters (Kp + Ti) Constant pressure at setpoint, independent of inlet pressure Stop function (no flow shutdown) Automatic cascade control of pumps for optimum efficiency. Selection of min. time between start/stop, automatic pump changeover and pump priority Automatic pump test function to prevent idle pumps from seizing up Standby pump allocation capability Redundant primary sensor capability Manual operation Proportional pressure control Multi-Sensor zone control with up to six zones Differential Pressure/Temperature control using two seperate sensors (i. e. discharge - suction substraction) Secondary Fall-back sensor will revert to secondary (local) sensor upon primary (remote) sensor failure Digital Pulse water meter reading (log accumulated flow) Forced pump changeover Clock program Soft pressure build-up External setpoint influence (via analog input) Emergency run (via digital input) Password protection Possibility of digital remote-control functions (via digital inputs): system on/off max. , min. or user-defined duty up to 6 alternative setpoints. Digital inputs and outputs can be configured individually Pump and system monitoring functions: minimum and maximum limits of measured values (flow, level, temp. , etc. ) built in data logging capability non return valve (check valve) failure detection high system pressure protection low system pressure protection pump curve data loaded into controller to provide end of curve protection alarm log with the previous 24 warnings/alarms potential-free changeover contacts for operation and fault. Grundfos bus communication with optional gateway connections for all popular communication protocols Ethernet connection (built-in web server) Pre-fabricated and tested packaged pump system including pumps, piping, and wiring complete with Control MPC. There are options to upgrade the pressure boosting system. Flow media: Water Flow (Plant) 143 US gpm Nom. current of plant: 25. 6 A Nominal power: 1. 48 HP