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SKU: 99752335
Grundfos Hydro Multi-E 3 x CRNE 15-4 Three Phase 3 x 4kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
University campus facilities and student residential buildings operate the heavy-duty Grundfos Hydro Multi-E 3 x CRNE 15-4 Three Phase 3 x 4kW Variable Speed 304ss Booster Pump Set with 24L Tank for reliable domestic reticulation. Three Grundfos CRNE 15-4 multistage pumps work in unison to eliminate pressure fluctuations during heavy usage. Part number 99752335 provides the complete tested package in a single order line.
From an engineering standpoint, the multi-stage wet ends supply peak flow up to 1400 L/min. Across vertical multi-storey plumbing risers, the package comfortably develops up to 82 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 for straightforward mechanical hookup, the package rests upon a rigid skid. 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 24.3 A (3 x 8.1 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.
Recommended for large-scale shopping malls, retail food plazas, and entertainment arenas. Integrating variable speed electronic control eliminates water hammer, extends mechanical life, and lowers lifecycle energy consumption compared to fixed-speed boosting systems.
FEATURES
- Factory-fitted 24L diaphragm pressure tank to suppress water hammer
- Dual pressure transmitters providing continuous line monitoring and fault failover
- Electrical supply rating: 3 x 380-415 V at 50 / 60 Hz
- Peak volumetric clean water delivery flow up to 1400 L/min
- Maximum vertical delivery head up to 82 metres
- Integrated multi-pump array featuring three Grundfos CRNE 15-4 multistage pumps
- Maximum operating pressure rating of 16 bar for robust commercial duty
- 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
- Industrial IP55 dust and moisture ingress protection on all pump drives
- Permissible liquid temperature range from 5°C to 60°C
- Combined rated current draw of 24.3 A (3 x 8.1 A per pump)
What's Included
- Grundfos Hydro Multi-E 3 CRNE 15-4 U2 A-A-I-I-DU Factory-Tested Booster Skid
- Three x Grundfos CRNE 15-4 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 | 1400 L/Min |
| Max Head | 82 m |
| Power | 3 x 4 kW / 415v |
| Rated Current | 3 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 | 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 manufacturer warranty protection covers this Grundfos booster assembly?
Factory backing for the Grundfos Hydro Multi-E 3 CRNE 15-4 U2 A-A-I-I-DU (part number 99752335) includes an authentic Grundfos two-year manufacturer warranty covering the pumps, drive electronics, and skid assembly.
Which water delivery capacity does this packaged multi-pump unit provide under full operational demand?
Meeting peak volumetric requirements, the Hydro Multi-E 3 CRNE 15-4 achieves a maximum water flow of 1400 L/min across the network.
How does the integrated variable frequency drive regulate motor speed across changing flow rates?
Pumping units within the Hydro-Multi-E-3-CRNE-15-4 are driven by three IE5 permanent-magnet MGE electric motors producing 4 kW per unit on a 3 x 380-415 V electrical supply.
Under full operational pressure, what dynamic head does this parallel booster assembly deliver?
To overcome high elevation changes, the Hydro Multi E 3 CRNE 15 4 generates up to 82 m total dynamic head with an 10 bar system rating.
Which pipework connection sizing and manifold valves are integrated across this booster unit?
Pre-mounted stainless manifolds on the 3 CRNE 15-4 (Hydro Multi-E) feature DN 100 suction and discharge headers with dedicated isolating valves and discharge check valves.
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