Mikrofill - Digital Pressurisation Unit Maxi AP 140 - Single Pump - 32 Ltr/Min. - Single Phase - Left-hand Entry

The MIKROFILL MAXI AP 140 Pressurisation Unit is a high-capacity, floor-standing solution for sealed LPHW, CHW, refrigeration and industrial cooling systems. Single (duty) or twin (duty/standby) pump configurations pair with Ai100 digital control for precise, reliable pressure management.

BMS-ready as standard, MAXI AP integrates via Modbus RTU and 4 programmable volt-free relays, while Category 5 backflow protection (Type AB air gap with weir overflow and warning pipe) safeguards water quality. A compact, robust, powder-coated steel enclosure with adjustable feet simplifies installation and commissioning.

• Sealed systems up to 300,000 Ltrs
• Cold fill options: approx. 3.9–8.0 Bar (model dependent)
• Ai100 microprocessor control with full status indication
• BMS integration: Modbus RTU + 4 volt-free relays

Designed for long-term performance, MAXI AP features self-diagnostic electronics, leak detection (frequency-of-starts alarm), and high-quality peripheral pump(s) to keep large systems running at peak efficiency.

Real-world product applications

• Boosting water pressure to multiple outlets in a building
• Maintaining stable pressure where demand varies
• Supplying water from storage tanks to distribution pipework
• Supporting general water supply and transfer systems
• Assisting with pressure control in utility installations

Key Product Features

• Capacity: suitable for sealed systems up to 300,000 Ltrs
• Pumping options: single (duty) or twin (duty/standby) peripheral pump configurations
• Control:Ai100 microprocessor; digital control system with LCD graphic display; full status indication
• Precision: accurate, stable pressure control for heating and cooling applications
• BMS/Comms:Modbus RTU interface; 4 programmable volt-free relays
• Cold fill pressure: models available up to approx. 3.9–8.0 Bar
• Protection:Category 5 backflow protection with Type AB air gap, weir overflow and warning pipe
• Diagnostics: self-diagnostic electronics; leak detection via frequency-of-starts alarm
• Construction: sturdy, powder-coated steel casing; floor-mounted with adjustable feet
• Compliance: built to latest CE requirements; manufactured in accordance with ISO 9001
• Compatibility: enhanced models fully BMS-compatible for modern plant integration
• Flow rate: 32 Ltr/min
• Water type: Clean Water
• Voltage: 230V