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SKU: 99752210
Grundfos Hydro Multi-E 2 x CRNE 5-4 Three Phase 2 x 0.75kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Research laboratory complexes requiring precise, non-surging header pressures rely on the Hydro Multi-E 2 CRNE 5-4. Two Grundfos CRNE 5-4 multistage pumps work in unison on the base frame, modulating rotational speed to follow the facility draw curve. Part number 99752210 provides the complete tested package in a single order line.
The staged wet end generates up to 340 L/min to keep line velocity steady. Multistage vertical hydraulics produce up to 41 metres of maximum head. Integrated Multi-Master intelligence coordinates the pumps without requiring an external control panel, ensuring automatic role swapping and uninterrupted pressure stabilization.
Built for rapid plant room integration, the set incorporates stainless steel manifolds, two Rp 2 inch threaded 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 3.7 A (2 x 1.85 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.
Widely specified throughout mixed-use commercial buildings, corporate office towers and shopping centres, the booster keeps water feeds consistently pressurised. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- Maximum operating pressure of 10 bar with motors sealed to IP55.
- Dry-running protection is built into the control, protecting the pumps if the suction supply is interrupted.
- Power use precisely tracks demand, avoiding the waste of fixed-speed alternates.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- 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.
- Pump staging follows demand automatically: pumps enter at low speed as pressure drops, ramp to equal speed, and exit as flow fades.
- At P2 each main pump is 0.75 kW, covering the duty without oversizing the frame.
- Two Grundfos CRNE 5-4 vertical multistage pumps run in parallel on one common base frame.
- Stainless steel manifolds provide two Rp 2 inch threaded manifold connections ready for plant pipework.
- Frequency converters on the motors pair with IE5 permanent magnet motors for efficient part-load operation.
- 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 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 | 340 L/Min |
| Max Head | 41 m |
| Power | 2 x 0.75 kW / 415v |
| Rated Current | 2 x 1.85 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C to 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.
What volumetric water flow does this packaged booster assembly supply for high demand installations?
Discharge performance allows the Grundfos Hydro Multi-E 2 CRNE 5-4 U2 A-A-I-I-DU (part number 99752210) to supply up to 340 L/min of water across distribution ringmains.
What motor drive hardware powers and modulates the centrifugal pumps on this booster package?
Variable frequency drive electronics on the Hydro Multi-E 2 CRNE 5-4 control two IE5 permanent-magnet MGE electric motors of 0.75 kW each from a 3 x 380-415 V power supply.
What vertical pumping head and maximum system pressure rating applies to this booster package?
Header line pressure created by the Hydro-Multi-E-2-CRNE-5-4 delivers up to 41 m total dynamic head across pipework rated up to 10 bar.
How are the suction and discharge manifolds configured for direct line connection and servicing?
Interconnecting fluid headers on the Hydro Multi E 2 CRNE 5 4 incorporate R 2 stainless steel suction and discharge pipework with built-in isolating valves and non-return valves.
Under what factory warranty terms is this variable frequency booster package supplied?
The complete factory package of the 2 CRNE 5-4 (Hydro Multi-E) is supported by a Grundfos two-year manufacturer warranty encompassing the base skid, motors, and wet ends.
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