DAB ESYBOX MAX 85/120 T Booster Pump | 380-480V Three Phase, 4.7 HP, 315 ft

DAB ESYBOX MAX 85/120 T for Long Runs and High Headers

The ESYBOX MAX 85/120 T puts a four-impeller pump, inverter, pressure sensors and expansion vessel into one compact housing. It runs on 380-480V three phase and turns a 4.7 HP motor drawing about 5.6 A. Four impellers lift water to a maximum head of roughly 315 ft. Flow reaches up to 76 GPM. The set point covers 15 to 174 psi, with 45 psi as the factory value. Inlet pressure should not exceed 72 psi. Connections are 1-1/4 in suction and 2 in discharge. An IPX5 motor with Class F insulation handles damp plant rooms. Liquid temperature can reach 104°F, with ambient air up to 113°F. Listings include UL 778, CSA C22.2 Number 108, NSF/ANSI 61 and NSF/ANSI 372. The pump weighs about 66.1 lb.

Where a High-Head Booster Pump Pays Off

Extra head matters when water must travel far or climb, such as to a mezzanine, a hillside block or a distant greenhouse range. It also helps when filters, injectors and long drip laterals add up to a large pressure drop. The inverter trims motor speed whenever demand falls, so the pump avoids running flat out against closed valves. Pressure at the last zone stays close to the set point as the first zones shut off. Seat the pump upright on an ESYDOCK MAX base, sold separately, which holds all of the pipework. As many as 4 units can link wirelessly into one group for shared duty and backup. DAB's H2D app connects over the built-in Wi-Fi for live status and alarms. An optional ESY I/O module adds wired inputs, relay outputs and Modbus. Each pump carries its own check valve and expansion vessel, so a separate tank is rarely needed. Keep the supply clean and below the inlet limit, adding a regulator where mains pressure runs high.

Key Features

• High head: Four impellers reach about 315 ft of head for long runs, raised headers and heavy filtration losses.
• Three-phase supply: Runs on 380-480V three phase to suit commercial pump rooms.
• Inverter constant pressure: Speed follows demand, which keeps the last zone near set point and saves energy at partial flow.
• Wireless grouping: Up to four units share duty and back each other up as one system.
• Wi-Fi and H2D app: Monitor status, alarms and settings from a phone.
• Potable water listings: UL, CSA and NSF/ANSI 61 and 372 listings for supplies shared by people and crops.

Technical Specifications