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SKU: 99752334
Grundfos Hydro Multi-E 2 x CRNE 15-4 Three Phase 2 x 4kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Urban residential strata blocks outgrowing their original municipal water supply install the Hydro Multi-E 2 CRNE 15-4. Operating two CRNE 15-4 pumps in parallel duty, the booster automatically cuts pumps in and out to track line velocity. The complete booster system ships factory assembled and certified under part number 99752334.
With variable-speed control active, the set delivers up to 933 L/min. Line pressure is maintained with up to 82 metres of maximum delivery head. Advanced Multi-Master firmware shares operating duties directly between pump heads, providing immediate fail-safe handover if an individual drive is isolated.
Fabricated as a turnkey booster package, the set incorporates stainless steel pipework, two 80 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 16.2 A (2 x 8.1 A per pump). Motors carry IP55 sealing with maximum pressure of 10 bar. Liquid-temperature suitability is 5°C to 60°C, and inlet pressure is rated to 10 bar.
Application sectors routinely span food production facilities, logistics distribution hubs and aquatic sports centres, where high-occupancy fixtures compete for water. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- Constant pressure control holds the delivered pressure flat while proportional mode lets setpoints flex with demand.
- Each pump is driven by IE5 permanent magnet motors with frequency-controlled speed matching demand.
- Stainless steel manifolds provide two 80 mm manifold connections ready for plant pipework.
- The system protects its pumps against dry running if the incoming supply is lost.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Maximum operating pressure of 10 bar with motors sealed to IP55.
- Energy draw matches the actual job because speed follows demand, not a fixed curve.
- Rated 4 kW (P2) on every main pump in the frame.
- 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.
- Two Grundfos CRNE 15-4 pumps share the boosting work in parallel.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a smartphone.
What's Included
- 2 x Grundfos CRNE 15-4 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 | 933 L/Min |
| Max Head | 82 m |
| Power | 2 x 4 kW / 415v |
| Rated Current | 2 x 8.1 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C to 60°C |
| Inlet Size | 80 mm |
| Outlet Size | 80 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 is this variable speed multi-pump package supported under manufacturer warranty?
Australian warranty protection on the Grundfos Hydro Multi-E 2 CRNE 15-4 U2 A-A-I-I-DU (part number 99752334) features a comprehensive Grundfos two-year manufacturer warranty covering the pumps, manifold headers, and motors.
What peak water displacement rate does this variable frequency booster unit achieve?
Across variable demand cycles, the Hydro Multi-E 2 CRNE 15-4 maintains up to 933 L/min total water throughput into the ringmain.
Which electric motor package and drive electronics power each pump on this packaged skid?
Inverter-driven electric propulsion on the Hydro-Multi-E-2-CRNE-15-4 provides mechanical output via two 4 kW IE5 permanent-magnet MGE electric units from a 3 x 380-415 V electrical supply.
What maximum dynamic lift and operating pressure rating applies to this booster package?
Across high-lift distribution piping, the Hydro Multi E 2 CRNE 15 4 supplies up to 82 m total dynamic head with an operating pressure rating of 10 bar.
What manifold port fittings and line isolation hardware are installed on this booster unit?
Factory pipework configuration on the 2 CRNE 15-4 (Hydro Multi-E) incorporates DN 80 stainless steel manifolds, complete with individual pump isolating valves and line check valves.
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