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SKU: 99614465
Grundfos Hydro Multi-E 3 x CRE 15-8 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
In mixed-use buildings where a single booster covers retail, offices and apartments, the simultaneous demand of the morning peak places heavy loads on the supply; the Hydro Multi-E 3 CRE 15-8 answers with three CRE 15-8 pumps operating in parallel. One factory-tested package replaces a shelf of loose components; order part number 99614465 to put it on site.
The system supports flow rates up to 1254 L/min. It can develop up to 158 metres of head for dependable pressure boosting. 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 44.9 A, with IP54 motor protection and a 16 bar maximum system pressure. Liquid-temperature suitability is 5°C to 60°C. Inlet pressure is rated to 16 bar.
Expect it on hospitals and industrial process supply sites, plus mixed-use commercial buildings duties. It provides clean-water pressure boosting for both new plant rooms and refits.
Features
- The controller tracks the pressure setpoint with proportional deviation alerts before conditions become faults.
- Rated 7.5 kW (P2) on every main pump in the frame.
- Energy draw matches the actual job because speed follows demand, not a fixed curve.
- The package is wet-tested and pre-configured, requiring only pipework and power on site.
- Cascade logic brings pumps on-line and off-line against changing demand without manual intervention.
- Three Grundfos CRE 15-8 pumps share the boosting work in parallel.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Dry-running protection is built into the control, protecting the pumps if the suction supply is interrupted.
- Rated for 16 bar system pressure; motors carry IP54 protection.
- Variable speed comes from frequency converters matched to IE5 permanent magnet motors, keeping the booster set in its efficient range.
- The set ships with an 24L precharged diaphragm tank for low-flow stability.
- The stainless steel manifold assembly is supplied with two 100 mm manifold connections.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a phone.
What's Included
- 3 x Grundfos CRE 15-8 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 | 1254 L/Min |
| Max Head | 158 m |
| Power | 3 x 7.5 kW / 415v |
| Rated Current | 3 x 44.9 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.
What electrical drive system and motor rating powers each pump within this packaged booster unit?
Electronic speed regulation across the Grundfos Hydro Multi-E 3 CRE 15-8 U2 A-A-I-I-DU is provided by three IE5 permanent-magnet MGE electric motors rated at 7.5 kW apiece on 3 x 380-415 V power, modulating motor rpm according to demand.
Which maximum system working pressure and vertical lift does this booster assembly deliver?
Hydraulic elevation capability on the Hydro Multi-E 3 CRE 15-8 generates up to 158 m total dynamic head while supporting a maximum operating pressure rating of 16 bar.
How are the suction and discharge pipe headers valved and isolated across this booster package?
Common manifolding across the Hydro-Multi-E-3-CRE-15-8 utilizes DN 100 stainless steel suction and discharge pipework with integrated non-return valves and isolating ball valves.
Which factory warranty terms and support provisions apply to this packaged booster set?
Investment protection for the Hydro Multi E 3 CRE 15 8 features a genuine Grundfos two-year manufacturer warranty supported by nationwide technical service and replacement components.
How much peak volumetric displacement does this variable speed booster assembly produce?
For high-demand distribution pipework, the 3 CRE 15-8 (Hydro Multi-E) delivers a peak water displacement rate of 1254 L/min across its parallel multistage pump assembly.
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