DAB EsyBox Max — Modular Commercial Water Pressurization System (1 to 4 Pumps) The DAB EsyBox Max is an integrated, modular pumping system designed for water pressurization in commercial building services. Built to scale with demand, it can be configured as a single, double, triple, or quadruple booster system—making it an excellent fit for medium-to-large condominiums and high-rise buildings, including installations over 14 floors. Each unit consists of a hydraulic connection base and a pumping module that includes an electronic vertical multi-impeller pump, display, Wi-Fi module, pressure sensors, a delivery non-return valve, and an expansion tank. The innovative support base and wireless communication between pumps enable on-site assembly (O.S.A. concept)—often allowing installation directly at the job site, even by one person. At the core of its performance is an integrated variable-frequency drive (VFD) that maintains constant pressure in response to demand. Combined with a water-cooled permanent magnet motor, EsyBox Max delivers improved efficiency, quieter operation, and meaningful energy savings. It’s also compatible with the DConnect service for modern monitoring and system management. EsyBox Max is ACS certified. Key Benefits Modular system configurations: 1–4 pumps to match building demand Designed for commercial buildings, condos, and high-rises (even 14+ floors) Integrated VFD keeps pressure constant as demand changes Wi-Fi module and display included on each pumping unit Wireless pump-to-pump communication supports on-site assembly (O.S.A.) Water-cooled permanent magnet motor for efficiency, low noise, and energy savings Built-in essentials: pressure sensors, a check valve, and an expansion tank DConnect is compatible for connected monitoring/management Certifications: WRAS, ACS, NSF61 Technical Specifications (Single Unit Reference) Max flow rate up to 17.4 m³/h Max head up to 96 m Pumped liquid clean, chemically neutral; free of solids/abrasives; non-viscous, non-aggressive Liquid temperature up to +50°C Max ambient temperature +55°C Max inlet pressure 5 bar Operating pressure 12 bar / 1200 kPa Constant pressure range 1–12 bar (default 3 bar) Max suction height 4 m (with bottom valve) Motor protection class IP X5 Insulation class F Impeller material technopolymer with steel wear rings Power input Single-phase: 208–240V, 50/60Hz Three-phase: 380–480V, 50/60Hz Installation fixed, vertical position Tip: For high-demand or redundancy requirements, choose a multi-pump configuration (2–4 units) to balance load, reduce cycling, and maintain stable pressure across peak usage.