DAB ESYBOX MAX 45/120 T pumping unit with frequency converter – 3 × 380–480 V, head up to 58 m

Product detailed description

Pumping unit for pressure stations

ESYBOX MAX 45/120 T from manufacturer DAB is a compact electronic unit for increasing water pressure in medium and large residential buildings, commercial properties and high-rise buildings (even over 14 floors). It is mounted on the ESYDOCK MAX base unit, which is not included in the delivery: a simple one is for one pump, 2 ESYDOCK MAX for two and 3 ESYDOCK MAX for three; a station with four pumps is created by an additional set connecting two double bases. Components can be brought to the site separately and the station can be assembled only during installation (O.S.A. concept).

Performance of model 45/120 T

According to the manufacturer's performance table, the unit achieves a head of 58 m at a flow of 4.8 m³/h, 45 m at 7.2 m³/h, 23 m at 11.4 m³/h and 7 m at 14.4 m³/h. The maximum differential pressure is 5.7 bar, power P1 max 1.93 kW (2.59 HP), nominal current 3.4 A.

Construction and control

• vertical multi-stage centrifugal pump with three impellers made of technopolymer with steel wear rings, check valve on the discharge and expansion tank 2 l
• permanent magnet motor cooled by pumped water, motor housing and shaft made of stainless steel, efficiency at the level of IE5 class according to internal manufacturer tests
• frequency converter with pressure sensors on the suction and discharge maintains constant pressure 1–12 bar (factory set to 3 bar)
• large display, Wi-Fi and Bluetooth, DConnect app for settings, alarms and consumption overview
• protections against dry running, overheating, freezing, blocking, cycling and abnormal current or voltage
• esy I/O module (accessory) for connection to the building management system (BMS)

Operating conditions

Clean, non-viscous, non-aggressive and chemically neutral water without solid and abrasive particles up to +50 °C, ambient up to +55 °C, inlet pressure up to 5 bar, nominal pressure PN 12. The pump is not self-priming – it draws from a tank or boosts pressure from a water supply; when installed above the water level, the suction height with a check valve is up to 4 m. Fixed mounting in a vertical position, motor protection IPX5, insulation class F. Thanks to WRAS, ACS and NSF61 certificates, it is also suitable for potable water.

Electrical connection and commissioning should be carried out by a qualified specialist; the supply must be protected by a residual current device with I Δn ≤ 30 mA.

Technical parameters

Frequently asked questions

Is the mounting base part of the delivery?
No. The ESYBOX MAX 45/120 T unit is mounted on the ESYDOCK MAX base, which must be ordered separately – a simple one for one pump, 2 ESYDOCK MAX for two or 3 ESYDOCK MAX for three pumps.

Can the unit draw water from a tank below the pump level?
The pump is not self-priming. When installed above the water level, it must be filled with water before starting and a check valve must be installed at the beginning of the suction pipe; the suction height is then up to 4 m.

What kind of water can be pumped?
Clean, non-viscous, non-aggressive and chemically neutral water without solid and abrasive particles at a temperature up to +50 °C. Thanks to WRAS, ACS and NSF61 certificates, ESYBOX MAX is also suitable for potable water.

How is the unit set up and monitored?
On the large display or in the DConnect app via integrated Wi-Fi and Bluetooth. Remote management via the DConnect service requires an internet connection.