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SKU: 99657297
Grundfos Hydro Multi-E 3 x CRE 20-6 Three Phase 3 x 7.5kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Where business parks adding tenancies faster than their mains can serve are served from a single booster, the Hydro Multi-E 3 CRE 20-6 holds pressure steady as three CRE 20-6 pumps respond to changing flow. The complete system ships factory assembled and tested under part number 99657297.
It handles flows up to 1576 L/min across the system. The pumps can develop up to 123 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 44.9 A. Motors are protected to IP54, while maximum system pressure is 16 bar. Liquid-temperature suitability is 5°C to 60°C. Inlet pressure is rated to 16 bar.
Applications include high-rise apartments, hotel plant rooms and aged-care complexes. The control flexibility suits clean-water boosting in new installations and upgrades.
Features
- Frequency converters on the motors pair with IE5 permanent magnet motors for efficient part-load operation.
- Pump staging follows demand automatically: pumps enter at low speed as pressure drops, ramp to equal speed, and exit as flow fades.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Three Grundfos CRE 20-6 vertical multistage pumps run in parallel on one common base frame.
- Dry-running protection is built into the control, protecting the pumps if the suction supply is interrupted.
- The controller tracks the pressure setpoint with proportional deviation alerts before conditions become faults.
- The stainless steel manifold assembly is supplied with two 100 mm manifold connections.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Maximum operating pressure of 16 bar with motors sealed to IP54.
- Each main pump is rated 7.5 kW (P2), so per-pump draw scales down as speed follows demand.
- Energy draw matches the actual job because speed follows demand, not a fixed curve.
- Setup and monitoring run through the Grundfos GO app rather than a panel visit.
- The package is wet-tested and pre-configured, requiring only pipework and power on site.
What's Included
- 3 x Grundfos CRE 20-6 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 | 1576 L/Min |
| Max Head | 123 m |
| Power | 3 x 7.5 kW / 415v |
| Rated Current | 3 x 44.9 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.
Under peak network pressure requirements, what dynamic head does this booster unit maintain?
Under peak line requirements, the Grundfos Hydro Multi-E 3 CRE 20-6 U2 A-A-I-I-DU delivers a maximum vertical head of 123 m and accommodates working system pressures up to 16 bar.
How are the common suction and discharge headers arranged across the parallel pump set?
Factory pipework configuration on the Hydro Multi-E 3 CRE 20-6 incorporates DN 100 stainless steel manifolds, complete with individual pump isolating valves and line non-return valves.
What warranty coverage backs this complete factory assembled booster assembly?
Factory backing for the Hydro-Multi-E-3-CRE-20-6 includes an authentic Grundfos two-year manufacturer warranty covering the pumps, drive electronics, and skid assembly.
Which total water transfer rate does this variable speed booster system displace under full duty?
At full operational capacity, the Hydro Multi E 3 CRE 20 6 provides up to 1576 L/min total water throughput to satisfy heavy facility consumption requirements.
Which variable speed motor technology provides mechanical power to the pumps on this skid?
Power for the 3 CRE 20-6 (Hydro Multi-E) is delivered via three high-efficiency IE5 permanent-magnet MGE electric motors of 7.5 kW each, wired for a 3 x 380-415 V electrical supply with built-in speed regulation.
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