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SKU: 93320251
Grundfos Hydro Multi-E 3 x CRE 45-2-2 Three Phase 3 x 7.5kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Winery bottling lines and barrel-washing operations maintain sanitary line pressure with the Hydro Multi-E 3 CRE 45-2-2. Integrated variable-speed drives coordinate the three CRE 45-2-2 pumps in parallel, seamlessly ramping output as fixtures open. Specify part number 93320251 and the complete factory-tested package arrives ready for connection.
Handling severe morning draw-downs, discharge scales to 3500 L/min. To pressurise elevated upper levels, the pumps develop up to 59.8 metres of head. Because every pump carries its own frequency converter and Multi-Master software elects the controlling pump itself, losing a control unit or pressure sensor means seamless handover rather than a shutdown.
Mounted on a sturdy channel-iron base, the booster combines stainless steel manifolds, two 200 mm manifold connections, isolation and non-return valves, pressure sensors, plus a 24L diaphragm tank. It connects to a 3 x 380-415 V supply at 50 / 60 Hz with combined rated current of 40.9 A (3 x 13.63 A per pump). Motors carry IP54 sealing with maximum pressure of 10 bar. Liquid-temperature suitability is 5°C to 60°C, and inlet pressure is rated to 10 bar.
The package provides reliable header boosting across high-rise apartments, hotel plant rooms and schools and universities, maintaining pressure across risers. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- Three Grundfos CRE 45-2-2 pumps share the boosting work in parallel.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a smartphone.
- Stainless steel manifolds provide two 200 mm manifold connections ready for plant pipework.
- The controller tracks the pressure setpoint with proportional deviation alerts before conditions become faults.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Maximum operating pressure of 10 bar with motors sealed to IP54.
- Slow-speed duty and staged switching keep consumption down through low-demand hours.
- Frequency converters on the motors pair with IE5 permanent magnet motors for efficient part-load operation.
- Each main pump is rated 7.5 kW (P2), so per-pump draw scales down as speed follows demand.
- Pumps are cut in and out according to demand, every running unit turning at the same speed to hold the pressure set point.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- Dry-running protection is built into the control, protecting the pumps if the suction supply is interrupted.
What's Included
- 3 x Grundfos CRE 45-2-2 vertical multistage pumps
- IE5 permanent magnet motors with integrated frequency converters
- Stainless steel suction manifold
- Stainless steel discharge manifold
- Non-return valves
- Isolation valves
- Pressure sensors/transmitters
- Pressure gauge
- 24L diaphragm pressure tank
- Factory assembled and tested booster system
SPECIFICATIONS
| Max Flow | 3500 L/Min |
| Max Head | 59 m |
| Power | 3 x 7.5 kW / 415v |
| Rated Current | 3 x 13.63 Amps |
| Suitable For | Commercial Water Supply, Pressure Boosting |
| Body Material | Cast Iron |
| Liquid Temperature | 5°C to 60°C |
| Inlet Size | 200 mm |
| Outlet Size | 200 mm |
| Warranty | 24 Months |
Warranty & Returns
All products supplied by Foundation Pumps are covered by a minimum 12-month warranty unless otherwise stated. Some brands may offer longer manufacturer warranties. Warranty covers manufacturing defects, faulty materials and workmanship under normal use.
- Products must be installed correctly and in accordance with the manufacturer’s instructions.
- Warranty does not cover incorrect installation, misuse, dry running, normal wear and tear, unauthorised repairs or damage caused by external factors.
- Proof of purchase, photos, videos and installation details may be requested when assessing a warranty claim.
- The customer is responsible for returning the product to Foundation Pumps or the nominated service centre unless otherwise agreed.
- Removal, reinstallation, labour and associated site costs are generally the customer’s responsibility unless required under Australian Consumer Law.
- Change-of-mind returns may be accepted within 30 days provided the product is unused, uninstalled and returned in its original packaging.
- Customers are responsible for return freight costs for change-of-mind returns.
- Restocking fees may apply to special-order, bulky or non-stocked products.
- Used, installed or specially ordered products may not be eligible for change-of-mind returns.
- If a product arrives damaged or faulty, please contact Foundation Pumps as soon as possible so we can assist with the appropriate repair, replacement or refund.
Your rights under Australian Consumer Law are not affected.
What manufacturer warranty terms apply to this factory assembled booster skid?
Nationwide factory protection backs the Grundfos Hydro Multi-E 3 CRE45-2-2 U2 A-A-I-I-DU (part number 93320251) through a genuine Grundfos two-year manufacturer warranty with local technical support across Australia.
Under full system demand, how much water volume does this parallel pump package discharge?
To support heavy fluid consumption, the Hydro Multi-E 3 CRE45-2-2 delivers an overall water transfer volume of 3500 L/min.
What electric propulsion and frequency inverter technology drives this multi-pump set?
Dedicated electric motor packages on the Hydro-Multi-E-3-CRE45-2-2 feature three IE5 permanent-magnet MGE electric motors of 7.5 kW apiece on a 3 x 380-415 V power supply.
How much total dynamic head pressure can this multistage booster package maintain?
Hydraulic elevation capability on the Hydro Multi E 3 CRE45 2 2 generates up to 59.8 m total dynamic head while supporting an operating pressure rating of 10 bar.
How are the pumps interconnected via common stainless steel suction and discharge manifolds?
Header plumbing on the 3 CRE45-2-2 (Hydro Multi-E) provides DN 200 stainless steel suction and discharge connections accompanied by isolating valves and discharge check valves.
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