Electronic circulator DAB.EVOPLUS B 120/250.40 M, flanged DN 40, for heating and air conditioning

Product detailed description

The DAB.EVOPLUS B 120/250.40 M (code 60150967) is a wet-rotor circulator with a permanent-magnet synchronous motor whose speed is controlled by a frequency inverter. It belongs to the EVOPLUS range designed for larger heating, ventilation and air-conditioning systems – apartment blocks and family houses, schools, hospitals or office buildings. This model is the single flanged version with a single-phase motor, DN 40 connection and 250 mm installation length.

Performance of the EVOPLUS B 120/250.40 M

The circulator delivers a head of up to 12 m and a flow of up to 23.48 m³/h, with a maximum power input P1 of 465 W. With an energy efficiency index EEI ≤ 0.20 it complies with the ErP Directive 2009/125/EC. The electronics continuously monitor hydraulic changes in the system, for example when individual branches open and close, and adjust the speed accordingly – the circuit receives the flow it needs without wasting energy.

Control and communication

• proportional (Δp-v) or constant (Δp-c) differential pressure, constant curve and control depending on fluid temperature
• economy function and remote start/stop
• inputs for a 0–10 V or 4–20 mA analogue signal, a PWM signal and a temperature sensor, fault signalling output
• ModBus communication, LonBus with an additional module
• OLED display and three buttons on the control panel

Design

The pump body is made of cast iron and the impeller of technopolymer; the stainless steel shaft runs in ceramic bearings lubricated by the pumped liquid, and the motor housing is die-cast aluminium. The suction and discharge ports have threaded tappings for pressure and temperature measurement. A thermal insulation shell for the pump body is supplied – it reduces heat loss and condensation, so the circulator can also be used in chilled-water circuits where the fluid is colder than the surroundings. The motor needs no external protection: the electronics protect it against overload, overheating, phase loss and over- and undervoltage.

Installation and operating conditions

The circulator is always installed with the motor shaft horizontal; the control electronics must be in a vertical position and must not be insulated. The fluid must be clean, free of solid particles and mineral oils, with no more than 30% glycol and a temperature of −10 to +110 °C; the ambient temperature must not exceed 40 °C. The maximum operating pressure is 16 bar, and at least 10 m water column at 90 °C, or 20 m at 110 °C, must be maintained on the suction side. DN 40 PN 10 counter flanges are not included and are available to order. The cast-iron version is not intended for drinking water. Electrical connection (1 × 220–240 V, 50/60 Hz) and commissioning must be carried out by a qualified professional.

Technical data

Frequently asked questions

What does the designation EVOPLUS B 120/250.40 M mean?
B stands for the single flanged version, 120 for the maximum head in decimetres (12 m), 250 for the installation length in millimetres and 40 for the nominal flange size DN 40. M means a single-phase 220–240 V motor.

Are counter flanges included?
No, the DN 40 PN 10 counter flanges are available to order. The insulation shell for the pump body, however, is included.

Which Grundfos circulator does this model replace?
The cross-reference table in the IVAR technical data sheet lists the EVOPLUS B 120/250.40 M as the equivalent of Grundfos MAGNA 40-120 F, MAGNA 1 40-120 F, MAGNA 3 40-120 F and UPS 40-120 F. Before replacing, check the installation length, flange and operating point of the system.

In which position is the circulator installed?
Always with the motor shaft horizontal and the control electronics vertical. Do not insulate the electronics or cover the condensate drain holes.