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SKU: 99614474
Grundfos Hydro Multi-E 3 x CRE 20-3 Three Phase 3 x 4kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
For expanding commercial sites whose original mains feed no longer keep pace, a factory-assembled Hydro Multi-E 3 CRE 20-3 package provides a well-matched solution, with three CRE 20-3 pumps staged against the demand curve. Quote part number 99614474 to have it arrive pre-configured and ready for the plant room.
It handles flows up to 1594 L/min across the system. The pumps can develop up to 61 metres of head when pressure demand increases. Because every pump carries its own frequency converter and the Multi-Master software elects the controlling pump itself, losing a control unit or pressure sensor means seamless handover rather than a shutdown.
Factory assembled on a common base, the set combines stainless steel pipework, two 100 mm manifold connections, isolation and non-return valves, pressure sensors and a gauge, plus a 24L diaphragm tank. It connects to a 3 x 380-415 V supply at 50 / 60 Hz with a rated current of 24.3 A. Motors are protected to IP54, while maximum system pressure is 10 bar. Liquid-temperature suitability is 5°C to 60°C. Inlet pressure is rated to 10 bar.
Applications include industrial process supply, mixed-use commercial buildings and high-rise apartments. The control flexibility suits clean-water boosting in new installations and upgrades.
Features
- Setup and monitoring run through the Grundfos GO app rather than a panel visit.
- Pump staging follows demand automatically: pumps enter at low speed as pressure drops, ramp to equal speed, and exit as flow fades.
- Three Grundfos CRE 20-3 pumps share the boosting work in parallel.
- The set ships with an 24L precharged diaphragm tank for low-flow stability.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- 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.
- Constant pressure control holds the delivered pressure flat while proportional mode lets setpoints flex with demand.
- Each pump is driven by IE5 permanent magnet motors with frequency-controlled speed matching demand.
- Stainless steel manifolds provide two 100 mm manifold connections ready for pipework.
- No external controller required: Multi-Master redundancy lets either pump assume the controlling role.
- Rated for 10 bar system pressure; motors carry IP54 protection.
- At P2 each main pump is 4 kW, covering the duty without oversizing the frame.
What's Included
- 3 x Grundfos CRE 20-3 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 | 1594 L/Min |
| Max Head | 61 m |
| Power | 3 x 4 kW / 415v |
| Rated Current | 3 x 24.3 Amps |
| Suitable For | Commercial Water Supply, Pressure Boosting |
| Body Material | Cast Iron |
| Liquid Temperature | 5°C – 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 total water volume can this multi pump booster set discharge to pressurised distribution mains?
Operating across its factory curve, the Grundfos Hydro Multi-E 3 CRE 20-3 U2 A-A-I-I-DU discharges up to 1594 L/min of clean water to maintain consistent line pressure during peak demand cycles.
Which electric motor configuration and voltage specification powers this packaged booster set?
Each centrifugal stage of the Hydro Multi-E 3 CRE 20-3 is driven by a 4 kW IE5 permanent-magnet MGE electric motor running on 3 x 380-415 V power, utilizing built-in variable speed drives to adjust output dynamically.
What dynamic elevation head and line pressure rating applies to this packaged booster assembly?
Elevating water across multi-level pipework, the Hydro-Multi-E-3-CRE-20-3 maintains up to 61 m total dynamic head with an overall 10 bar maximum operating limit.
How are the inlet and outlet manifolds plumbed and isolated for maintenance across the pumps?
Plumbed for rapid site installation, the Hydro Multi E 3 CRE 20 3 includes DN 100 stainless steel headers equipped with dedicated isolating valves, check valves, and pressure transmitters.
Which warranty protection and technical support covers this packaged booster assembly?
Grundfos provides two-year manufacturer warranty coverage on the 3 CRE 20-3 (Hydro Multi-E), securing the complete multi-pump package, manifolds, and integrated electronics.
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