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SKU: 99752140
Grundfos Hydro Multi-E 2 x CRNE 3-5 Three Phase 2 x 0.55kW Variable Speed 304ss Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Day spas and compact medical centres running half a dozen outlets at once rely on booster systems with no tolerance for pressure variation, and the Hydro Multi-E 2 CRNE 3-5 is engineered for exactly that duty. One factory-tested package replaces a shelf of loose components; order part number 99752140 to put it on site.
The system supports flow rates up to 166 L/min. It can develop up to 46 metres of head for dependable pressure boosting. 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 2.94 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.
Applications include aged-care complexes, mixed-use commercial buildings and schools and universities. The control flexibility suits clean-water boosting in new installations and upgrades.
Features
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a phone.
- Rated for 10 bar system pressure; motors carry IP55 protection.
- Both constant-pressure and proportional-pressure modes are available, so plant rooms can tune response to pipework.
- Power use precisely tracks demand, avoiding the waste of fixed-speed alternates.
- Stainless steel manifolds provide two 50 mm manifold connections ready for pipework.
- Each pump is driven by IE5 permanent magnet motors with frequency-controlled speed matching demand.
- At P2 each main pump is 0.55 kW, covering the duty without oversizing the frame.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- No external controller required: Multi-Master redundancy lets either pump assume the controlling role.
- Two Grundfos CRNE 3-5 pumps share the boosting work in parallel.
- Pumps are cut in and out according to demand, every running unit turning at the same speed to hold the pressure set point.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- The system protects its pumps against dry running if the incoming supply is lost.
What's Included
- 2 x Grundfos CRNE 3-5 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 | 166 L/Min |
| Max Head | 46 m |
| Power | 2 x 0.55 kW / 415v |
| Rated Current | 2 x 2.94 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.
What peak water displacement rate does this variable frequency booster unit achieve?
Operating across its factory curve, the Grundfos Hydro Multi-E 2 CRNE 3-5 U2 A-A-I-I-DU discharges up to 166 L/min of clean water to maintain consistent line pressure during peak demand cycles.
Which electric motor package and drive electronics power each pump on this packaged skid?
Each centrifugal stage of the Hydro Multi-E 2 CRNE 3-5 is driven by a 0.55 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 maximum dynamic lift and operating pressure rating applies to this booster package?
Elevating water across multi-level pipework, the Hydro-Multi-E-2-CRNE-3-5 maintains up to 46 m total dynamic head with an overall 10 bar maximum operating limit.
What manifold port fittings and line isolation hardware are installed on this booster unit?
Plumbed for rapid site installation, the Hydro Multi E 2 CRNE 3 5 includes R 2 stainless steel headers equipped with dedicated isolating valves, check valves, and pressure transmitters.
Which factory warranty provisions apply to this variable speed booster assembly?
Grundfos provides two-year manufacturer warranty coverage on the 2 CRNE 3-5 (Hydro Multi-E), securing the complete multi-pump package, manifolds, and integrated electronics.
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