HYDRO MPC-F 3 CR120-4-1
Pressure booster system supplied as compact assembly according to DIN standard 1988/T5.
The pumps are CR pumps connected to one external Grundfos CUE frequency converter. The speed-controlled operation alternates between the pumps.
- Hydro MPC-F maintains a constant pressure through continuous adjustment of the speed of the pump connected to the CUE frequency converter.
- The system performance is adapted to the demand through cutting in/out the required number of CR pumps and through parallel control of the pumps in operation.
- Pump changeover is automatic and depends on load, time and fault.
|
|
The system consists of these parts:
:vertical multistage centrifugal pumps, type CR120-4-1.
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).
- Two manifolds of stainless steel EN DIN 1.4571.
- Base frame of stainless steel EN DIN 1.4301 up to CR 90 above CR90 the pumps are placed on a galvanized I-Beam frame.
- One non-return valve (POM) and two isolating valves for each pump.
- Non-return valves are certified according to DVGW, isolating valves according to DIN and DVGW.
- Adapter with isolating valve for connection of diaphragm tank.
- Pressure gauge and pressure transmitter (analog output 4-20 mA).
- Control MPC in a steel cabinet, IP 54, including main switch, all required fuses, motor protection, switching equipment and microprocessor-controlled CU 352.
|
|
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:
- Intelligent multipump controller, CU 352.
- Constant-pressure control through continuously variable adjustment of the speed of each individual pump.
- PID controller with adjustable PI parameters (Kp + Ti).
- Constant pressure at setpoint, independent of inlet pressure.
- Soft pressure build-up (To prevent water hammer during startup).
- On/off operation at low flow.
- 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.
- Possibility of standby pump allocation.
- Possibility of backup sensor (redundant primary sensor).
- Secondary sensor (Possible to switch to another sensor/setpoint).
- Multi-sensor (up to 6 sensors to influence the setpoint).
- Manual operation.
- Possibility of external setpoint influence.
- Log function.
- Setpoint ramp.
- Possibility of digital remote-control functions:
- 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 current value.
- Inlet pressure.
- Motor protection.
- Sensors and cables monitored for malfunction.
- Alarm log with the previous 24 warnings/alarms.
- Display and indication functions:
- Colour screen display.
- Green indicator light for operating indications and red indicator light for fault indications
- Potential-free changeover contacts for operation and fault.
- Grundfos bus communication.
|
|
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.
| Fördermedium: |
|
Wasser |
| zul. Mediumtemp.: |
|
5 °C .. 60 °C |
| Max. Betriebsdruck: |
|
16 bar |
| Max. Förderstrom d. Anlage: |
|
480 m³/h |
| Förderstrom der Anlage ohne die Reservepumpe nach DIN 1988/T5: |
|
280 m³/h |
| Nennstrom der Anlage: |
|
65.5 A |
| Motorbemessungsleistung: |
|
37 kW |
Membranbehälter, Komponenten zur Wassermangel- überwachung und alternative Bedieneinheiten können aus der Zubehörliste ausgewählt werden. Nettogewicht: 2520 kg
