DESIGN
Taco ES MAXI is a wet rotor high efficiency circulator, driven by a permanent magnets synchronous motor (PM motor) controlled by an on board inverter. The motor is protected against overload thanks to a thermal protection and an automatic electronic release function of the rotor. No external protection is required. Operated by selector technology. Integrated display and symbols user interface.
APPLICATION
Hot-water heating systems of all kinds, closed cooling circuits, circulation in solar thermal and geothermal systems, for domestic and industrial circulation systems.
PRODUCT FEATURES AND BENEFITS
• Maximum savings on operating costs thanks to high-efficiency technology combined with speed control
• Your investments on the future thanks to its maximum energy efficiency, exceeding future energy efficiency regulations such as ErP
• Saving in investment and commissioning costs thanks to inputs supplied as standard
• Dual pump operation
• Easy performance regulation in Δp-c (constant differential pressure) and Δp-v (proportional differential pressure)
• Min-Max mode with manual setting up to 10 fixed speed curves
• ECO-Mode with dynamic differential pressure set point adjustment
• Quick, easy and secure installation
• Thermal insulation shell included
MOTOR TECHNICAL DATA
• Power supply: 1x230 V ( ±10%), PE; Frequency: 50/60 Hz
• Energy Efficiency Index (EEI)*: ≤ 0,23 – Part 2
• Input power (P1): Min. 20W, Max. 480W
• Input current (I1): Min. 0.10A, Max. 2.10A
• Insulation class: F
• Protection class: IP44
• Temperature class: TF 110
PUMP TECHNICAL DATA
• Flange connection: DN 40
• Ambient temperature: 0°C to +40°C
• Fluid temperature: -10°C to +110°C
• Temperature range at max. ambient temperature:
of 30°C = +30°C to +90°C
of 40°C = +40°C to +110°C
• Max. operating pressure: Max. 1.0 MPa - 10 bar
• Minimum pressure on the intake opening:
0.05 MPa (0.5 bar) at 80°C
0.15 MPa (1.5 bar) at 95°C
• Maximum relative humidity: ≤ 80%
• Sound pressure level: < 45 dB(A)
• Low Voltage directive (2006/95/CE): Standard used: EN 60335-1, EN 60335-2-51
• EMC Directive (2004/108/CE): Standard used: EN 61000-6-2, EN 61000-6-3
• Ecodesign directive (2009/125/CE): Standard used: EN 16297-1 and EN 16297-2
* The benchmark for most efficient circulators is EEI ≤ 0,20
INPUTS / OUTPUTS
• Modbus RTU
• 0-10VDC
• Start/Stop signal
• General fault signal
• Dual pump mode
PUMPED LIQUIDS
• Heating water to VDI 2035. Highly viscous fluids (e.g. 30% glycol content and above) on request.
• Pure, thin-bodied, non-aggressive and non-explosive fluids not containing any mineral oil, solids or long fibres.
• Fluids with a viscosity of 10 mm²/s max.
REGULATION AND CONTROL
Use the Press&turn dial to select the desired operating curve:
• Nr. 10 ECO-Mode curves
• Nr. 10 proportional-pressure curves
• Nr. 10 constant-pressure curves
• Nr. 10 fixed speed curves
CERTIFICATIONS
• CE marking
SCOPE OF DELIVERY
• Circulator
• Gaskets included
• Thermal insulation shell included
• Installation and operation instructions included
