Mikrofill Digital Pressurisation Unit Maxi Plus UHP AP 280 – Twin Pump – 38 Ltr/min – Single Phase – Left-hand Entry

The Mikrofill Digital Pressurisation Unit Maxi Plus UHP AP 280 provides intelligent pressure management for sealed heating, chilled water, refrigeration, and industrial cooling systems. It continuously monitors operating pressure and automatically restores the correct level whenever required. As a result, heating and cooling systems remain protected from pressure fluctuations while delivering reliable and efficient performance.

Designed for demanding commercial and industrial applications, this model features twin high-pressure pumps, a 38 Ltr/min maximum flow rate, a 230V single-phase electrical supply, and a left-hand pipe entry configuration. Furthermore, the twin-pump arrangement offers automatic duty and standby operation, ensuring continuous service while reducing downtime during maintenance or unexpected pump issues.

In addition, the advanced digital controller includes a clear LCD graphic display, automatic filling and top-up functions, leak detection, dry-run protection, and intelligent self-diagnostic monitoring. Consequently, engineers can monitor system performance more effectively while reducing maintenance time and improving long-term operational reliability.

The unit also incorporates Category 5 backflow protection with a Type AB air gap to comply with current water regulations. Moreover, integrated Modbus RTU communication and programmable volt-free relay outputs enable seamless connection to Building Management Systems (BMS). This allows remote monitoring, alarm reporting, and improved control across larger commercial installations.

Manufactured with a durable powder-coated steel enclosure, the unit is built for continuous operation in demanding plant room environments. Whether you are upgrading an existing installation or specifying equipment for a new project, the Mikrofill Digital Pressurisation Unit Maxi Plus UHP AP 280 provides dependable pressure control, intelligent monitoring, and long-term performance.

Browse our Mikrofill Pressurisation Units collection to explore additional digital pressurisation solutions.

For complete technical specifications, installation guidance, and operating manuals, visit the Official Mikrofill Website.

Key Features

• Twin high-pressure pump configuration
• 38 Ltr/min maximum flow rate
• Single-phase (230V) power supply
• Left-hand entry configuration
• Automatic duty and standby pump operation
• Digital LCD graphic display
• Automatic system filling and top-up
• Leak detection monitoring
• Dry-run protection
• Intelligent self-diagnostic electronics
• Category 5 backflow protection
• Modbus RTU BMS communication
• Programmable volt-free relay outputs
• Powder-coated steel enclosure

Benefits

• Maintains accurate operating pressure
• Provides pump redundancy for improved reliability
• Protects boilers, chillers, valves, and pipework
• Reduces maintenance requirements
• Supports Building Management System integration
• Delivers dependable long-term performance