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SKU: 93368431
Grundfos Hydro Multi-E 2 x CRNE 45-4-2 Three Phase 2 x 22kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Emergency response centres and fire station facilities ensure immediate line readiness with the Hydro Multi-E 2 CRNE 45-4-2. Configured with two CRNE 45-4-2 vertical pumps in parallel, the booster dynamically matches motor speed to immediate water requirements. Specify part number 93368431 and the complete factory-tested package arrives ready for connection.
Maximum volumetric output reaches up to 2333 L/min for commercial fixtures. To pressurise elevated upper levels, the pumps develop up to 133.1 metres of head. Integrated Multi-Master intelligence coordinates the pumps without requiring an external control panel, ensuring automatic role swapping and uninterrupted pressure stabilization.
Constructed on a sturdy baseframe channel, the system includes stainless steel manifolds, two 150 mm 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 87.6 A (2 x 43.8 A per pump). Motors carry IP54 sealing with maximum pressure of 16 bar. Liquid-temperature suitability is 5°C to 60°C, and inlet pressure is rated to 16 bar.
Designed for clean-water boosting across mixed-use commercial buildings, corporate office towers and shopping centres, the set adapts instantly to demand swings. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- At P2 each main pump is 22 kW, covering the duty without oversizing the frame.
- Stainless steel manifolds provide two 150 mm manifold connections ready for plant pipework.
- The controller tracks the pressure setpoint with proportional deviation alerts before conditions become faults.
- Cascade logic brings pumps on-line and off-line against changing demand without manual intervention.
- 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.
- Two Grundfos CRNE 45-4-2 vertical multistage pumps run in parallel on one common base frame.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Frequency converters on the motors pair with IE5 permanent magnet motors for efficient part-load operation.
- Energy draw matches the actual job because speed follows demand, not a fixed curve.
- Maximum operating pressure of 16 bar with motors sealed to IP54.
- The system protects its pumps against dry running if the incoming supply is lost.
What's Included
- 2 x Grundfos CRNE 45-4-2 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 | 2333 L/Min |
| Max Head | 133 m |
| Power | 2 x 22 kW / 415v |
| Rated Current | 2 x 43.8 Amps |
| Suitable For | Commercial Water Supply, Process and Food-Grade Duties |
| Body Material | Stainless Steel |
| Liquid Temperature | 5°C to 60°C |
| Inlet Size | 150 mm |
| Outlet Size | 150 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 electrical propulsion and variable speed control provided across the parallel pump set?
Variable speed propulsion on the Grundfos Hydro Multi-E 2 CRNE45-4-2 U2 A-A-I-I-D (part number 93368431) utilizes two 22 kW IE5 permanent-magnet MGE electric motors connected to a 3 x 380-415 V power line.
Which maximum dynamic head does this parallel booster set achieve during full duty pumping?
Delivering high-elevation lift, the Hydro Multi-E 2 CRNE45-4-2 maintains up to 133.1 m dynamic head with an allowable working pressure of 16 bar.
Which manifold connection sizes and fluid isolation valves are factory fitted on this booster unit?
Factory manifold integration on the Hydro-Multi-E-2-CRNE45-4-2 incorporates DN 150 stainless steel suction and discharge pipework with individual check valves and isolating valves.
Which factory warranty terms protect the pumps and integrated drive electronics?
Australian technical protection for the Hydro Multi E 2 CRNE45 4 2 includes a genuine Grundfos two-year manufacturer warranty supported by factory-trained technicians and spare components.
How much water delivery can this variable frequency booster system discharge into the header pipework?
Under maximum water demand, the 2 CRNE45-4-2 (Hydro Multi-E) delivers a peak displacement rate of 2333 L/min across parallel centrifugal stages.
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