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SKU: 99752158
Grundfos Hydro Multi-E 2 x CRNE 3-8 Three Phase 2 x 0.75kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Showers, coffee machines and dishwashers competing for one limited mains feed rely on booster systems with no tolerance for pressure variation, and the Hydro Multi-E 2 CRNE 3-8 is engineered for exactly that duty. Quote part number 99752158 to have it arrive pre-configured and ready for the plant room.
Flow capacity reaches 159 L/min. Up to 74 metres of head is available to maintain pressure as demand changes. There is no separate central controller to purchase: Multi-Master control resides within the pumps, either unit can assume the controlling role, and a fault is handed over cleanly without interrupting supply.
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 3 x 380-415 V at 50 / 60 Hz with a rated current of 3.7 A. The motors have IP55 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.
Typical duty sits with high-rise apartments, aged-care complexes and hotel plant rooms. It is designed for clean-water pressure boosting where demand varies through the day.
Features
- 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.
- Stainless steel manifolds provide two 50 mm manifold connections ready for pipework.
- At P2 each main pump is 0.75 kW, covering the duty without oversizing the frame.
- Pumps are cut in and out according to demand, every running unit turning at the same speed to hold the pressure set point.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- The set ships with an 24L precharged diaphragm tank for low-flow stability.
- Variable speed comes from frequency converters matched to IE5 permanent magnet motors, keeping the booster set in its efficient range.
- Dry-running protection is built into the control, protecting the pumps if the suction supply is interrupted.
- Maximum operating pressure of 10 bar with motors sealed to IP55.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Setup and monitoring run through the Grundfos GO app rather than a panel visit.
- Two Grundfos CRNE 3-8 vertical multistage pumps run in parallel on one common base frame.
What's Included
- 2 x Grundfos CRNE 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 | 159 L/Min |
| Max Head | 74 m |
| Power | 2 x 0.75 kW / 415v |
| Rated Current | 2 x 3.7 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| 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.
How does the integrated variable frequency drive regulate motor speed across changing flow rates?
Electronic speed regulation across the Grundfos Hydro Multi-E 2 CRNE 3-8 U2 A-A-I-I-DU is provided by two IE5 permanent-magnet MGE electric motors rated at 0.75 kW apiece on 3 x 380-415 V power, modulating motor rpm according to demand.
Under full operational pressure, what dynamic head does this parallel booster assembly deliver?
Hydraulic elevation capability on the Hydro Multi-E 2 CRNE 3-8 generates up to 74 m total dynamic head while supporting a maximum operating pressure rating of 10 bar.
Which pipework connection sizing and manifold valves are integrated across this booster unit?
Common manifolding across the Hydro-Multi-E-2-CRNE-3-8 utilizes R 2 stainless steel suction and discharge pipework with integrated non-return valves and isolating ball valves.
What warranty coverage and service provisions back this multi pump booster unit?
Investment protection for the Hydro Multi E 2 CRNE 3 8 features a genuine Grundfos two-year manufacturer warranty supported by nationwide technical service and replacement components.
Which maximum flow rate does this variable speed booster assembly deliver into pressurised mains?
For high-demand distribution pipework, the 2 CRNE 3-8 (Hydro Multi-E) delivers a peak water displacement rate of 159 L/min across its parallel multistage pump assembly.
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