ENERGY SAVING | ES2 C 70

Standard high efficiency circulator for systems integrators


DESIGN
Taco ES2 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. LED user interface.

APPLICATION
Hot-water heating systems of all kinds, in domestic and commercial buildings.

PRODUCT FEATURES AND BENEFITS
• Very high degrees of efficiency due to Taco permanent magnets motor
• Compact design: the smallest available on the market
• A LED provides information about the operation status of the circulator
• Electronic controls allow to set advanced features and load adjustment capacity Δp-c (constant differential pressure) and Δp-v (proportional differential pressure)
• Min-Max mode: allows to set the exact working point across the range
• The pump housing realized in composite plastic material is designed to work at high temperatures (TF95)

MOTOR TECHNICAL DATA
• Power supply: 1x230 V ( ±10%); Frequency: 50/60 Hz
• Electrical connection: Pull resistant cable clamp PG11
• Energy Efficiency Index (EEI)*: ≤ 0,21 – Part 2
• Input power (P1): Min 3W, Max 56W
• Input current (I1): Min 0.03A, Max 0.44A
• Insulation class: H
• Protection class: IP44
• Appliance class: II

PUMP TECHNICAL DATA
• Threaded pipe connection: G 1
• Ambient temperature:  0°C to +40°C
• Fluid temperature**:  +2°C to +95°C
• Temperature range at max. ambient temperature:
of 30°C = +30°C to +95°C
of 35°C = +35°C to +90°C
of 40°C = +40°C to +70°C
• Max. operating pressure:  Max 0.6 MPa - 6 bar
• Minimum pressure on the intake opening:
0.03 MPa (0.3 bar) at 50°C
0.10 MPa (1.0 bar) at 95°C
• Maximum relative humidity: ≤ 95%
• Sound pressure level:  < 43 dB(A)
• Low Voltage directive (2006/95/CE): Standard used: EN 62233, EN 60335-1 and EN 60335-2-51
• EMC Directive (2004/108/CE): Standard used: EN 61000-3-2 and EN 61000-3-3, EN 55014-1 and EN 55014-2
• Ecodesign directive (2009/125/CE): Standard used: EN 16297-1 and EN 16297-2

PUMPED LIQUIDS
• Water for heating according to VDI 2035
• Mixtures of water and glycol with glycol percentages not greater than 30%
• Clean liquids, not aggressive and not explosive, not containing solid particles, fibers or mineral oils.

REGULATION AND CONTROL
Turn the regulator to select the desired operating curve
• nr. 2 proportional-pressure curves (P1,P2)
• nr. 2 constant-pressure curves (CI, CII)
• min-max mode – Fixed speed

CERTIFICATIONS
• CE marking
• VDE GS marking

SCOPE OF DELIVERY
• Circulator
• Installation and operation instructions included

*  The benchmark for most efficient circulators is EEI ≤ 0,20
** To avoid condensation in the motor and the electronics the temperature of the pumped liquid must always be greater than the ambient temperature

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