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SKU: 99752370
Grundfos Hydro Multi-E 3 x CRNE 20-6 Three Phase 3 x 7.5kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Educational colleges and secondary school campuses manage peak plumbing fixture demand with the Grundfos Hydro Multi-E 3 x CRNE 20-6 Three Phase 3 x 7.5kW Variable Speed 304ss Booster Pump Set with 24L Tank. Three Grundfos CRNE 20-6 multistage pumps work in unison to eliminate pressure fluctuations during heavy usage. Part number 99752370 provides the complete tested package in a single order line.
Calibrated for high-flow commercial duties, the package outputs peak volume up to 1750 L/min. Across vertical multi-storey plumbing risers, the package comfortably develops up to 128 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.
Engineered to resist hydraulic stress, the pumps mount to a solid structural baseplate. 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 44.9 A (3 x 15 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.
Well-suited to pharmaceutical manufacturing, packaging clean-rooms, and medical labs. Integrating variable speed electronic control eliminates water hammer, extends mechanical life, and lowers lifecycle energy consumption compared to fixed-speed boosting systems.
FEATURES
- Pre-plumbed with two 100 mm manifold connections and isolating non-return valves
- Permissible liquid temperature range from 5°C to 60°C
- Factory-fitted 24L diaphragm pressure tank to suppress water hammer
- Electrical supply rating: 3 x 380-415 V at 50 / 60 Hz
- Integrated multi-pump array featuring three Grundfos CRNE 20-6 multistage pumps
- Maximum vertical delivery head up to 128 metres
- Maximum operating pressure rating of 16 bar for robust commercial duty
- Industrial IP55 dust and moisture ingress protection on all pump drives
- Wetted components manufactured from high-grade Stainless Steel and 316-grade fittings
- Peak volumetric clean water delivery flow up to 1750 L/min
- Dual pressure transmitters providing continuous line monitoring and fault failover
- Combined rated current draw of 44.9 A (3 x 15 A per pump)
What's Included
- Grundfos Hydro Multi-E 3 CRNE 20-6 U2 A-A-I-I-DU Factory-Tested Booster Skid
- Three x Grundfos CRNE 20-6 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 | 128 m |
| Power | 3 x 7.5 kW / 415v |
| Rated Current | 3 x 15 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.
What maximum system pressure and elevation lift capability can this booster skid achieve?
For vertical pressure boosting, the Grundfos Hydro Multi-E 3 CRNE 20-6 U2 A-A-I-I-DU (part number 99752370) produces up to 128 m total elevation head with an 16 bar maximum working pressure envelope.
How are the suction and discharge lines plumbed and valved across this packaged booster assembly?
Suction and discharge manifolding on the Hydro Multi-E 3 CRNE 20-6 features DN 100 stainless steel headers with individual pump isolating valves and discharge non-return check valves.
Which factory warranty provisions protect this packaged variable speed booster unit?
Purchasing protection on the Hydro-Multi-E-3-CRNE-20-6 incorporates a genuine Grundfos two-year manufacturer warranty covering mechanical components, pipework, and drive units.
How much water flow rate can this multi-pump package displace when operating at full capacity?
Maximum water throughput on the Hydro Multi E 3 CRNE 20 6 reaches up to 1750 L/min under full variable speed operation.
Which electric motor drives and frequency converters provide propulsion on this booster skid?
Precision motor modulation on the 3 CRNE 20-6 (Hydro Multi-E) is delivered by three IE5 permanent-magnet MGE electric motors producing 7.5 kW per pump from a 3 x 380-415 V electrical supply.
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