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SKU: 99752159
Grundfos Hydro Multi-E 3 x CRNE 3-8 Three Phase 3 x 0.75kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
University science facilities and fume cupboard wash stations depend on the Hydro Multi-E 3 CRNE 3-8. The package operates three Grundfos CRNE 3-8 vertical multistage pumps in parallel, automatically staging each unit as flow demand increases. Specify part number 99752159 and the complete factory-tested package arrives ready for connection.
Throughput easily satisfies peak facility requirements up to 270 L/min. To pressurise elevated upper levels, the pumps develop up to 76 metres of head. Because every pump carries its own frequency converter and Multi-Master software elects the controlling pump itself, losing a control unit or pressure sensor means seamless handover rather than a shutdown.
Pre-fabricated on a floor-mounted steel channel, the set incorporates stainless steel manifolds, two Rp 2 inch threaded manifold connections, isolation and non-return valves, pressure sensors, plus a 24L diaphragm tank. It connects to a 3 x 380-415 V supply at 50 / 60 Hz with combined rated current of 5.55 A (3 x 1.85 A per pump). Motors carry IP55 sealing with maximum pressure of 10 bar. Liquid-temperature suitability is 5°C to 60°C, and inlet pressure is rated to 10 bar.
Clean-water boosting duty covers buildings like high-rise apartments, hotel plant rooms and schools and universities, where energy-efficient pumping is vital. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Maximum operating pressure of 10 bar with motors sealed to IP55.
- Pump staging follows demand automatically: pumps enter at low speed as pressure drops, ramp to equal speed, and exit as flow fades.
- Energy draw matches the actual job because speed follows demand, not a fixed curve.
- Both constant-pressure and proportional-pressure modes are available, so plant rooms can tune response to pipework.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a smartphone.
- 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.
- Stainless steel manifolds provide two Rp 2 inch threaded manifold connections ready for plant pipework.
- Each main pump is rated 0.75 kW (P2), so per-pump draw scales down as speed follows demand.
- Frequency converters on the motors pair with IE5 permanent magnet motors for efficient part-load operation.
- The system pairs three CRNE 3-8 pumps in parallel duty, controlled as a single coordinated system.
What's Included
- 3 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 | 270 L/Min |
| Max Head | 76 m |
| Power | 3 x 0.75 kW / 415v |
| Rated Current | 3 x 1.85 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C to 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 is variable speed motor propulsion delivered across each pump wet end on this skid?
High-efficiency motor packages on the Grundfos Hydro Multi-E 3 CRNE 3-8 U2 A-A-I-I-DU (part number 99752159) incorporate three 0.75 kW IE5 permanent-magnet MGE electric drives wired for 3 x 380-415 V operation.
What elevation lift capacity and line pressure does this packaged booster assembly maintain?
Dynamic head performance from the Hydro Multi-E 3 CRNE 3-8 attains a vertical elevation of up to 76 m within an 10 bar pressure rating.
Which stainless steel manifold connections and valve hardware are provided on this booster set?
Factory header connections on the Hydro-Multi-E-3-CRNE-3-8 provide R 2 stainless steel suction and discharge manifolds with individual pump isolating valves and non-return check valves.
Which factory warranty coverage and service terms apply to this booster assembly?
Grundfos provides two-year manufacturer warranty coverage on the Hydro Multi E 3 CRNE 3 8, securing the complete multi-pump package, manifolds, and integrated electronics.
What total water pumping volume can this packaged multi-pump assembly achieve at peak system duty?
Hydraulic output from the 3 CRNE 3-8 (Hydro Multi-E) provides a peak volumetric transfer capacity of 270 L/min during high consumption.
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