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SKU: 99752206
Grundfos Hydro Multi-E 2 x CRNE 5-4 Single Phase 2 x 0.75kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Sites such as small sites where a duty-point review calls for reserve pump capacity require consistent pressure regardless of demand fluctuation; the Hydro Multi-E 2 CRNE 5-4 achieves this with two CRNE 5-4 pumps operating in parallel. Specify part number 99752206 and the whole set lands tested, assembled and ready for pipework.
It handles flows up to 304 L/min across the system. The pumps can develop up to 38 metres of head when pressure demand increases. There is no separate central controller to purchase: Multi-Master control resides within the pumps, either unit can assume the controlling role, and a fault is handed over cleanly without interrupting supply.
For installation, the booster is supplied pre-assembled with stainless steel manifolds, two 50 mm manifold connections, isolation valves, non-return valves, pressure sensors and a gauge, plus a 24L diaphragm tank. It is designed for 1 x 200-240 V power at 50 / 60 Hz with a rated current of 9.02 A, with IP55 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.
Expect it on mixed-use commercial buildings and aged-care complexes sites, plus industrial process supply duties. It provides clean-water pressure boosting for both new plant rooms and refits.
Features
- The stainless steel manifold assembly is supplied with two 50 mm manifold connections.
- Energy draw matches the actual job because speed follows demand, not a fixed curve.
- Pump staging follows demand automatically: pumps enter at low speed as pressure drops, ramp to equal speed, and exit as flow fades.
- The set ships with an 24L precharged diaphragm tank for low-flow stability.
- Constant pressure control holds the delivered pressure flat while proportional mode lets setpoints flex with demand.
- The system protects its pumps against dry running if the incoming supply is lost.
- Setup and monitoring run through the Grundfos GO app rather than a panel visit.
- No external controller required: Multi-Master redundancy lets either pump assume the controlling role.
- The package is wet-tested and pre-configured, requiring only pipework and power on site.
- Rated for 10 bar system pressure; motors carry IP55 protection.
- Each pump is driven by IE5 permanent magnet motors with frequency-controlled speed matching demand.
- Rated 0.75 kW (P2) on every main pump in the frame.
- Two Grundfos CRNE 5-4 vertical multistage pumps run in parallel on one common base frame.
What's Included
- 2 x Grundfos CRNE 5-4 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 | 304 L/Min |
| Max Head | 38 m |
| Power | 2 x 0.75 kW / 240v |
| Rated Current | 2 x 9.02 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C – 60°C |
| Inlet Size | 50 mm |
| Outlet Size | 50 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.
Under what warranty coverage is this complete multi pump booster package supplied?
The complete factory package of the Grundfos Hydro Multi-E 2 CRNE 5-4 U8 A-A-I-I-DU is supported by a Grundfos two-year manufacturer warranty encompassing the base skid, motors, and wet ends.
What fluid transfer capacity does this parallel centrifugal booster unit provide across the mains?
Meeting high volumetric requirements, the Hydro Multi-E 2 CRNE 5-4 achieves a maximum water delivery capacity of 304 L/min through coordinated parallel pump operation.
What variable speed electric motor units power the parallel multistage pumps on this package?
Mechanical drive on the Hydro-Multi-E-2-CRNE-5-4 features two inverter-controlled IE5 permanent-magnet MGE electric motors producing 0.75 kW per pump, powered by a 1 x 200-240 V connection for energy-optimised water delivery.
What total dynamic head and operating pressure capability does this booster set provide?
Discharge pressure performance allows the Hydro Multi E 2 CRNE 5 4 to achieve up to 38 m maximum dynamic head under a 10 bar rated system pressure.
How are the inlet and outlet manifolds arranged to allow independent pump maintenance?
Interconnecting pipework on the 2 CRNE 5-4 (Hydro Multi-E) features factory-fitted R 2 stainless steel suction and discharge manifolds fitted with non-return check valves and isolation valves.
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