NCE EL
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Energy saving circulating pumps for solar systems Construction Energy saving variable speed circulating pump driven by a permanent magnet synchronous motor (pm) controlled by on board inverter. Applications Solar thermal systems. Operating conditions - Liquid temperature from +2 °C to +110 °C - Ambient temperature from 0 °C to +40 °C - Maximum permissible working pressure: 10 bar - Storage: -20°C/+70°C max. relative humidity 95% at 40 °C - Certifications: in conformity with CE requirements - Sound pressure ≤ 43 dB (A). - Minimum suction pressure: 0,3 bar at 50 °C 1,0 bar at 95 °C 1,5 bar at 110 °C - Maximum glycol quantity: 40% - EMC according to: EN 55014-1, EN 61000-3-2, EN 55014-2 - Connections: threaded ports ISO 228: G 1, G 1 1/2. - The benchmark for most efficient circulators is EEI ≤ 0,20. - Minimun power: 3 W. Motor Synchronous motor with permanent magnet. - Motor: variable speed - Standard voltage: single-phase 230 V (-10%;+6%) - Frequency: 50 Hz - Protection: IP 44 - Insulation class: H - Class II appliance - Overload protection (jammed rotor): 1) automatic protection with electronic rotor release 2) Overload thermal protector - Cable: phases and neutral - Constructed in accordance with: EN 60335-1, EN 60335-2-51. Designation NCE EL 25 - 60 / 180 Series Version DN ports in mm Max. head in dm connection size mm Special features on request Brass or cast iron unions. Features Compact design The space saving NCE EL is a very compact circulating pump, allows inr easy installation in small domestic heating systems. Easy to install and to adjust Installing the NCE EL is considerably simplified by the quick setting and power installation plug. Reliable Like all our electronic circulating pumps, the NCE EL features the patented self-cleaning square chamber design, which eliminates any possibility of rotor blockage. Ceramic shaft. Hydraulics components are completely painted with cataphoresis. Program for automatic routine vent and release. Easy use Operating range with fixed curves from 0,6 m to 7 m; possibility to choose proportional pressure curve or selection of the optimum working

Energy saving circulating pumps for solar systems Operating modes PROPORTIONAL CURVE PROGRAMMING Δp-v (GREEN LED) Moving the switch to the ‘P’ setting will allow the pump to operate against a proportional performance curve. This feature ensures maximum energy efficiency. MANUAL PROGRAMMING (BLUE LED) Setting the switch in any position between the MIN and MAX points, the most suitable operating curve for the installation is manually selected. WARNING! - The red LED indicates that the pump is not rotating but is still under tension. - White flashing LED : plant degassing requirement, air in...

Energy saving circulating pumps for solar systems Component Pump casing Thrust bearing Composite / Ferrite Copper wire Electronic card

Energy saving circulating pumps for solar systems Terminal box arrangement (on request)