Lowara Resvari Plus D 750 5-3.5 Variable Speed Booster Set 240V

Part Number: 135G01063

The Lowara Resvari Plus D 750 5-3.5 is a high-performance, twin-pump variable speed booster set engineered for domestic, light commercial and washdown applications. Combining a 750-litre Category 5 break tank, twin Lowara SCUBA submersible pumps and intelligent variable speed control, it provides reliable water pressure while maximising energy efficiency and operational performance.

Featuring the latest generation Lowara SCUBA multistage submersible pumps, the Resvari Plus D delivers quiet operation, excellent hydraulic performance and long-term reliability. The integrated variable speed drive automatically adjusts pump speed to match demand, helping achieve energy savings of up to 70% compared to conventional fixed-speed booster systems.

The dual-pump arrangement can be configured as Duty/Assist or Duty/Standby, ensuring consistent pressure during periods of high demand while also providing built-in redundancy for enhanced system security.

Designed with installation flexibility in mind, the compact footprint is comparable to a standard washing machine, allowing the unit to pass through standard doorways and fit into confined plant rooms and service areas without disassembly.

Key Features

• 750 litre Category 5 break tank
• Twin-pump variable speed booster set
• Intelligent variable speed control for reduced energy consumption
• Up to 70% energy savings compared to fixed-speed systems
• Compact design for easy installation in restricted spaces
• Duty/Assist or Duty/Standby operation
• Quiet and efficient multistage pump technology
• Suitable for domestic, commercial and washdown applications
• WRAS-approved components for potable water use
• Standard volt-free fault contact for Building Management System (BMS) integration

Suitable for Potable Water Applications

The Resvari Plus D is designed specifically for potable water boosting applications and incorporates WRAS-approved components throughout:

• WRAS-approved break tank, pressure vessel and fittings
• Stainless steel manifold and pump casings
• Brass isolation valves
• Category 5 compliant break tank
• AB air gap providing protection against backflow contamination into the mains supply

Pump Specification

• Pump Quantity: 2
• Pump Model: Lowara SCUBA 5SC5/09/5 C L05
• Pump Type: Stainless Steel Multistage Submersible Pump
• Approval: WRAS Approved

Performance & Design

The Resvari Plus range is available in eight performance configurations, covering both 3 m³/h and 5 m³/h duty requirements with operating pressures ranging from 2 to 5 bar at the best efficiency point.

The modular design enables tank capacities from 500 litres to 1500 litres, allowing the system to be tailored to a wide range of applications.

Typical Applications

• Domestic cold water boosting
• Residential developments and apartment blocks
• Commercial buildings
• Schools and educational facilities
• Sports halls and leisure centres
• Washdown systems
• Potable water distribution systems

Technical Specifications

The Lowara Resvari Plus D 750 5-3.5 provides a powerful and energy-efficient solution for water pressure boosting, combining advanced variable speed technology, twin-pump reliability and full Category 5 compliance in a compact, installation-friendly package.