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SKU: 99614451
Grundfos Hydro Multi-E 3 x CRE 15-3 Three Phase 3 x 3kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Residential towers and medium commercial sites outgrowing their mains pressure rely on booster systems with no tolerance for pressure variation, and the Hydro Multi-E 3 CRE 15-3 is engineered for exactly that duty. Specify part number 99614451 and the whole set lands tested, assembled and ready for pipework.
It handles flows up to 1279 L/min across the system. The pumps can develop up to 59 metres of head when pressure demand increases. Because every pump carries its own frequency converter and the Multi-Master software elects the controlling pump itself, losing a control unit or pressure sensor means seamless handover rather than a shutdown.
For installation, the booster is supplied pre-assembled with stainless steel manifolds, two 100 mm manifold connections, isolation valves, non-return valves, pressure sensors and a gauge, plus a 24L diaphragm tank. It is designed for 3 x 380-415 V power at 50 / 60 Hz with a rated current of 18.6 A, with IP54 motor protection and a 10 bar maximum system pressure. Liquid-temperature suitability is 5°C to 60°C. Inlet pressure is rated to 10 bar.
Applications include high-rise apartments, industrial process supply and aged-care complexes. The control flexibility suits clean-water boosting in new installations and upgrades.
Features
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- The stainless steel manifold assembly is supplied with two 100 mm manifold connections.
- The package is wet-tested and pre-configured, requiring only pipework and power on site.
- Both constant-pressure and proportional-pressure modes are available, so plant rooms can tune response to pipework.
- Setup and monitoring run through the Grundfos GO app rather than a panel visit.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Each main pump is rated 3 kW (P2), so per-pump draw scales down as speed follows demand.
- Cascade logic brings pumps on-line and off-line against changing demand without manual intervention.
- Three Grundfos CRE 15-3 vertical multistage pumps run in parallel on one common base frame.
- Maximum operating pressure of 10 bar with motors sealed to IP54.
- The system protects its pumps against dry running if the incoming supply is lost.
- Power use precisely tracks demand, avoiding the waste of fixed-speed alternates.
- Each pump is driven by IE5 permanent magnet motors with frequency-controlled speed matching demand.
What's Included
- 3 x Grundfos CRE 15-3 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 | 1279 L/Min |
| Max Head | 59 m |
| Power | 3 x 3 kW / 415v |
| Rated Current | 3 x 18.6 Amps |
| Suitable For | Commercial Water Supply, Pressure Boosting |
| Body Material | Cast Iron |
| Liquid Temperature | 5°C – 60°C |
| Inlet Size | 100 mm |
| Outlet Size | 100 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.
How are the parallel centrifugal stages connected to common suction and discharge manifolds?
Header plumbing on the Grundfos Hydro Multi-E 3 CRE 15-3 U2 A-A-I-I-DU provides DN 100 stainless steel suction and discharge connections accompanied by isolating valves and discharge check valves.
How is this multi stage booster skid protected under manufacturer warranty terms?
Protection on the Hydro Multi-E 3 CRE 15-3 is provided by a comprehensive Grundfos two-year manufacturer warranty with extensive Australian technical service and spare parts support.
How much discharge water flow does this variable speed booster unit supply across the distribution ringmain?
Under maximum network draw, the Hydro-Multi-E-3-CRE-15-3 supplies a peak fluid flow rate of up to 1279 L/min across its variable speed centrifugal stages.
Which electric motor drive configuration powers each centrifugal pump within this booster package?
Propulsion across the Hydro Multi E 3 CRE 15 3 is supplied by three IE5 permanent-magnet MGE electric motors rated at 3 kW each, operating on a 3 x 380-415 V electrical supply with integrated frequency converters for precise pressure control.
Which vertical elevation head and system pressure rating applies to this multi pump skid?
For vertical pressure boosting, the 3 CRE 15-3 (Hydro Multi-E) produces up to 59 m total elevation head with a 10 bar maximum working pressure envelope.
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