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SKU: 93320245
Grundfos Hydro Multi-E 3 x CRE 45-1-1 Three Phase 3 x 4kW Variable Speed Booster Pump Set with 24L Tank
Australia-Wide
(08) 9240 2992
Official Grundfos
Peace of Mind
Product Overview
Major sporting arena grandstands managing sudden half-time amenity rushes rely on the Hydro Multi-E 3 CRE 45-1-1. Configured with three CRE 45-1-1 vertical pumps in parallel, the booster dynamically matches motor speed to immediate water requirements. Part number 93320245 provides the complete tested package in a single order line.
The booster set effortlessly supplies up to 3500 L/min during peak trading. Multistage vertical hydraulics produce up to 31 metres of maximum head. Integrated Multi-Master intelligence coordinates the pumps without requiring an external control panel, ensuring automatic role swapping and uninterrupted pressure stabilization.
Assembled on an industrial floor-mount skid, the system brings together stainless steel manifolds, two 200 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 29.9 A (3 x 9.97 A per pump). Motors carry IP54 sealing with maximum pressure of 10 bar. Liquid-temperature suitability is 5°C to 60°C, and inlet pressure is rated to 10 bar.
Frequently commissioned across facilities including mixed-use commercial buildings, corporate office towers and shopping centres, the system operates unattended. Variable-speed motor modulation makes the set a practical clean-water pressure-boosting solution for both new plant rooms and system upgrades.
FEATURES
- The system pairs three CRE 45-1-1 pumps in parallel duty, controlled as a single coordinated system.
- Slow-speed duty and staged switching keep consumption down through low-demand hours.
- Multi-Master redundancy means either pump can act as controller, with seamless changeover on fault.
- Factory assembled and wet-tested, the set arrives pre-configured for straightforward installation.
- Integrated Grundfos GO compatibility supports configuration, logging and diagnostics from a smartphone.
- At P2 each main pump is 4 kW, covering the duty without oversizing the frame.
- Variable speed comes from frequency converters matched to IE5 permanent magnet motors, keeping the booster set in its efficient range.
- Stainless steel manifolds provide two 200 mm manifold connections ready for plant pipework.
- The system protects its pumps against dry running if the incoming supply is lost.
- An integrated 24L diaphragm tank carries small draw-offs and limits pump cycling.
- Maximum operating pressure of 10 bar with motors sealed to IP54.
- 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.
What's Included
- 3 x Grundfos CRE 45-1-1 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 | 3500 L/Min |
| Max Head | 31 m |
| Power | 3 x 4 kW / 415v |
| Rated Current | 3 x 9.97 Amps |
| Suitable For | Commercial Water Supply, Pressure Boosting |
| Body Material | Cast Iron |
| Liquid Temperature | 5°C to 60°C |
| Inlet Size | 200 mm |
| Outlet Size | 200 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 dynamic head pressure does this parallel booster package generate across distribution pipework?
System pressure envelope for the Grundfos Hydro Multi-E 3 CRE45-1-1 U2 A-A-I-I-DU (part number 93320245) supports up to 10 bar while generating up to 31 m peak vertical elevation head.
How are the parallel multistage pumps plumbed into common suction and discharge manifolds?
Common header pipework on the Hydro Multi-E 3 CRE45-1-1 includes factory-plumbed DN 200 stainless steel suction and discharge lines with isolation and non-return check valves.
Which manufacturer warranty provisions cover the complete packaged booster set?
Genuine manufacturer support backs the Hydro-Multi-E-3-CRE45-1-1 with a comprehensive Grundfos two-year factory warranty covering all pre-assembled components and electronics.
What peak water delivery rate can this parallel pump package achieve across the distribution network?
Operating across its factory curve, the Hydro Multi E 3 CRE45 1 1 discharges up to 3500 L/min of clean water during peak facility draw.
Which electric drive motor specification powers the parallel pump wet ends on this skid?
Power for the 3 CRE45-1-1 (Hydro Multi-E) is delivered via three high-efficiency IE5 permanent-magnet MGE electric motors of 4 kW each wired for a 3 x 380-415 V mains supply.
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