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SKU: 99614250
Grundfos Hydro Multi-E 2 x CRE 3-8 Single Phase 2 x 0.75kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Sites such as showers, coffee machines and dishwashers competing for one limited mains feed require consistent pressure regardless of demand fluctuation; the Hydro Multi-E 2 CRE 3-8 achieves this with two CRE 3-8 pumps operating in parallel. The complete system ships factory assembled and tested under part number 99614250.
Flow capacity reaches 158 L/min. Up to 73 metres of head is available to maintain pressure as demand changes. 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.
The two-pump package arrives as one base-mounted assembly with stainless steel manifolds, two 50 mm manifold connections, valves, sensors and a pressure gauge, plus a 24L diaphragm tank. Electrical supply is 1 x 200-240 V at 50 / 60 Hz with a rated current of 9.02 A. The motors have IP54 protection and the system is rated to 10 bar maximum pressure. Liquid-temperature suitability is 5°C to 60°C. Inlet pressure is rated to 10 bar.
Expect it on hotel plant rooms and industrial process supply sites, plus mixed-use commercial buildings duties. It provides clean-water pressure boosting for both new plant rooms and refits.
Features
- The system pairs two CRE 3-8 pumps in parallel duty, controlled as a single coordinated system.
- The package is wet-tested and pre-configured, requiring only pipework and power on site.
- Variable speed comes from frequency converters matched to IE5 permanent magnet motors, keeping the booster set in its efficient range.
- The stainless steel manifold assembly is supplied with two 50 mm manifold connections.
- No external controller required: Multi-Master redundancy lets either pump assume the controlling role.
- Each main pump is rated 0.75 kW (P2), so per-pump draw scales down as speed follows demand.
- The system protects its pumps against dry running if the incoming supply is lost.
- The controller tracks the pressure setpoint with proportional deviation alerts before conditions become faults.
- Pump staging follows demand automatically: pumps enter at low speed as pressure drops, ramp to equal speed, and exit as flow fades.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Slow-speed duty and staged switching keep consumption down through low-demand hours.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a phone.
- Maximum operating pressure of 10 bar with motors sealed to IP54.
What's Included
- 2 x Grundfos CRE 3-8 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 | 158 L/Min |
| Max Head | 73 m |
| Power | 2 x 0.75 kW / 240v |
| Rated Current | 2 x 9.02 Amps |
| Suitable For | Commercial Water Supply, Pressure Boosting |
| Body Material | Cast Iron |
| Liquid Temperature | 5°C – 60°C |
| Inlet Size | 50 mm |
| Outlet Size | 50 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 vertical elevation head and maximum operating pressure does this booster package develop?
Under peak line requirements, the Grundfos Hydro Multi-E 2 CRE 3-8 U8 A-A-I-I-DU delivers a maximum vertical head of 73 m and accommodates working system pressures up to 10 bar.
Which inlet and outlet manifold dimensions and valve fittings are integrated onto this booster unit?
Factory pipework configuration on the Hydro Multi-E 2 CRE 3-8 incorporates R 2 stainless steel manifolds, complete with individual pump isolating valves and line non-return valves.
Under what warranty coverage is this complete multi pump booster package supplied?
Factory backing for the Hydro-Multi-E-2-CRE-3-8 includes an authentic Grundfos two-year manufacturer warranty covering the pumps, drive electronics, and skid assembly.
What fluid transfer capacity does this parallel centrifugal booster unit provide across the mains?
At full operational capacity, the Hydro Multi E 2 CRE 3 8 provides up to 158 L/min total water throughput to satisfy heavy facility consumption requirements.
What variable speed electric motor units power the parallel multistage pumps on this package?
Power for the 2 CRE 3-8 (Hydro Multi-E) is delivered via two high-efficiency IE5 permanent-magnet MGE electric motors of 0.75 kW each, wired for a 1 x 200-240 V electrical supply with built-in speed regulation.
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