Roll over image to zoom
SKU: 99752368
Grundfos Hydro Multi-E 3 x CRNE 20-4 Three Phase 3 x 5.5kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Logistics distribution centres and warehouse complexes maintain steady water reticulation with the Grundfos Hydro Multi-E 3 x CRNE 20-4 Three Phase 3 x 5.5kW Variable Speed 304ss Booster Pump Set with 24L Tank. Three Grundfos CRNE 20-4 multistage pumps work in unison to eliminate pressure fluctuations during heavy usage. Part number 99752368 provides the complete tested package in a single order line.
At peak operating capacity, the parallel pump arrangement produces system flows up to 1750 L/min. Across vertical multi-storey plumbing risers, the package comfortably develops up to 85 metres of head. Multi-Master autonomous inverter technology enables each pump to take lead control dynamically, providing complete hardware redundancy without requiring a separate central control cabinet.
The booster system is fully plumbed and wired onto a heavy-duty common base. The set is fully pre-plumbed with two 100 mm manifold connections, dedicated isolation valves, and integrated non-return valves on each discharge line. It connects to a 3 x 380-415 V supply at 50 / 60 Hz with combined rated current of 32.9 A (3 x 11 A per pump). A 24L diaphragm pressure tank absorbs initial draw-offs and line hammer, while IP55 enclosure protection and a 16 bar pressure rating ensure long-term mechanical reliability. Liquid-temperature suitability is 5°C to 60°C for all standard clean water booster duties.
Built for high-density apartment blocks, urban strata buildings, and student dormitories. Integrating variable speed electronic control eliminates water hammer, extends mechanical life, and lowers lifecycle energy consumption compared to fixed-speed boosting systems.
FEATURES
- Maximum operating pressure rating of 16 bar for robust commercial duty
- Electrical supply rating: 3 x 380-415 V at 50 / 60 Hz
- Industrial IP55 dust and moisture ingress protection on all pump drives
- Dual pressure transmitters providing continuous line monitoring and fault failover
- Maximum vertical delivery head up to 85 metres
- Peak volumetric clean water delivery flow up to 1750 L/min
- Pre-plumbed with two 100 mm manifold connections and isolating non-return valves
- Wetted components manufactured from high-grade Stainless Steel and 316-grade fittings
- Combined rated current draw of 32.9 A (3 x 11 A per pump)
- Permissible liquid temperature range from 5°C to 60°C
- Factory-fitted 24L diaphragm pressure tank to suppress water hammer
- Integrated multi-pump array featuring three Grundfos CRNE 20-4 multistage pumps
What's Included
- Grundfos Hydro Multi-E 3 CRNE 20-4 U2 A-A-I-I-DU Factory-Tested Booster Skid
- Three x Grundfos CRNE 20-4 Multistage Pumps with Integrated Frequency Converters
- Integrated Multi-Master Autonomous Inverter Drive System
- 1 x Factory-Mounted 24L Diaphragm Pressure Tank
- Suction and Discharge Manifolds (two 100 mm manifold connections)
- Individual Pump Isolation Valves and Spring-Loaded Non-Return Valves
- Dual Factory-Calibrated Pressure Transmitters
- Heavy-Duty Structural Steel Mounting Baseplate
- Comprehensive Installation and Operating Documentation
SPECIFICATIONS
| Max Flow | 1750 L/Min |
| Max Head | 85 m |
| Power | 3 x 5.5 kW / 415v |
| Rated Current | 3 x 11 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C to 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 pump wet ends powered and speed controlled during variable demand cycles?
Each centrifugal pump of the Grundfos Hydro Multi-E 3 CRNE 20-4 U2 A-A-I-I-DU (part number 99752368) is driven by a 5.5 kW IE5 permanent-magnet MGE electric motor running on a 3 x 380-415 V power supply with integrated speed regulation.
How much elevation lift and maximum discharge pressure can this multistage booster unit maintain?
Vertical elevation performance allows the Hydro Multi-E 3 CRNE 20-4 to develop up to 85 m total dynamic head within an 10 bar system rating.
Which suction and discharge pipe connections and isolating valves are fitted to this package?
Mechanical manifold assembly on the Hydro-Multi-E-3-CRNE-20-4 supplies DN 100 stainless steel suction and discharge pipework fitted with isolating valves and discharge check valves.
What factory warranty protection is provided for this multi-pump booster package?
Official manufacturer backing on the Hydro Multi E 3 CRNE 20 4 provides a Grundfos two-year warranty with authorized Australian technical assistance and spare parts availability.
Under peak operational conditions, what fluid volume does this variable speed booster package provide?
During periods of high consumption, the 3 CRNE 20-4 (Hydro Multi-E) provides a maximum water flow rate of 1750 L/min.
Need help choosing the right pump?
Our team of pump experts are here to help you find the perfect solution for your application.
- Free expert advice
- Pump sizing & system recommendations
- Fast response — call or email us