Hydro MPC-E 3 CRE 32-4-2 Pressure booster system supplied as space-efficient assembly according to DIN standard 1988/T5.
All pumps are speed-controlled.
From 0.37 to 11 kW, the booster system is equipped with CR, CRE, CRI, CRIE pumps with electronically commutated permanent-magnet motors with extremely high efficiency. The total efficiency of the motor including the frequency converter applies to IE5 level in IEC60034-31.
From 15 to 22 kW, the booster system is equipped with CR, CRE, CRI, CRIE pumps with motors with integrated frequency control. The total efficiency of the motor including the frequency converter is better than the IE3 level in IEC60034-31, even though this standard only applies to the motor.
- Pump changeover is self-operating and depends on load, time and fault
- 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
- Hydro MPC-E maintains a constant pressure through continuous adjustment of the speed of the pumps
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The system consists of these parts:
:vertical, multi-stage, centrifugal pumps, type CRE 32-4-2
Pump parts in contact with the pumped liquid are made of Stainless Steel EN DIN 1.4301 Pump bases and heads are of either Cast Iron/Stainless Steel (CRI) or Cast Iron EN-GJS-500-7 (CR), depending on pump type; other vital parts are made of Stainless Steel EN DIN 1.4301 The pumps are equipped with a service-friendly cartridge shaft seal, HQQE (SiC/SiC/EPDM)
- Control MPC in a steel cabinet, IP54, including main switch, all required fuses, motor protection, switching equipment and microprocessor-controlled CU 352
- Pressure gauge and pressure transmitter (analog output 4-20 mA)
- Adapter with isolating valve for connection of diaphragm tank
- Non-return valves are certified according to DVGW, isolating valves according to DIN and DVGW
- One non-return valve (POM) and two isolating valves for each pump
- Stainless Steel base frame to EN DIN 1.4301 up to CR 90; above CR 90 the pumps are placed on a galvanized I-Beam frame
- Two Stainless Steel manifolds to EN DIN 1.4571
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Dry-running protection and diaphragm tank are available according to the list of accessories.
Pump operation is controlled by Control MPC with the following functions:
- Grundfos bus communication
- Potential-free changeover contacts for operation and fault
- Green indicator light for operating indications and red indicator light for fault indications
- Colour screen display
- Display and indication functions:
- Alarm log with the previous 24 warnings/alarms
- Sensors and cables monitored for malfunction
- Motor protection
- Non-return valve monitoring
- Inlet pressure
- Minimum and maximum limits of current value
- Pump and system monitoring functions:
- Digital inputs and outputs can be configured individually
- Up to 6 alternative setpoints
- Max., min. or user-defined duty
- System on/off
- Possibility of digital remote-control functions:
- Setpoint ramp
- Log function
- Possibility of external setpoint influence
- Manual operation
- Multi-sensor (up to 6 sensors to influence the setpoint)
- Secondary sensor (Possible to switch to another sensor/setpoint)
- Possibility of backup sensor (redundant primary sensor)
- Possibility of standby pump allocation
- self-operating pump test function to prevent idle pumps from seizing up
- Selection of min. time between start/stop, self-operating pump changeover and pump priority
- self-operating cascade control of pumps for optimum efficiency
- On/off operation at low flow
- Soft pressure build-up (To prevent water hammer during startup)
- Constant pressure at setpoint, independent of inlet pressure
- PID controller with adjustable PI parameters (Kp + Ti)
- Constant-pressure control through continuously variable adjustment of the speed of each individual pump
- Intelligent multipump controller, CU 352
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It is possible to add CIM communication modules for communicating with Scada/BMS.
Pumps, piping, cabling complete as well as Control MPC are mounted on the base frame. The booster system has been preset and tested.
There are options to upgrade the pressure boosting system.
Suitable for: Commercial heating, Commercial water pressure boosting, District heating, District cooling, Industrial cleaning process, Industrial heating, Industrial cooling, Industrial water supply and transfer, Desalination, Drinking water treatment, Water distribution, Irrigation, Community water supply, Wastewater treatment
Real-world product applications
- Boosting water pressure to multiple outlets in a building
- Maintaining stable pressure where demand varies
- Supplying water from storage tanks to distribution pipework
- Supporting general water supply and transfer systems
- Assisting with pressure control in utility installations
Key Product Features
- Net weight: 622 kg
- Mains frequency: 50 / 60 Hz
- Rated Head: 78.2 m
- Rated Flow: 108 m³/h
- Product Voltage: 3 x 380-415 V
- Temperature Liquid Range: 5 .. 60 °C
- Pumped Liquid: Water
- Maximum Operating Pressure: 16 bar
This is a Grundfos Booster pump or pressure system for increasing and maintaining system pressure.
Grundfos (est. 1945) is a Danish pump manufacturer known for high-efficiency circulators, multistage boosters, borehole and wastewater pumps, plus packaged pressure systems. The range covers HVAC circulation, domestic hot water recirculation, pressure boosting, industrial water transfer and public water management, with strong focus on energy efficiency and intelligent controls.
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