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NCE H F

Product catalog summary

Overview: The document details the specifications and features of energy-saving circulating pumps with flanges, specifically the NCE H.F series. These pumps are designed for heating and conditioning systems and are driven by a permanent magnet synchronous motor controlled by an onboard inverter.

Specifications:

Operating Conditions: Liquid temperature range from +2°C to +110°C, ambient temperature from 0°C to +40°C, and maximum working pressure of 10 bar.
Certifications: Conforms to CE requirements and EMC standards (EN 55014-1, EN 55014-2, EN 61000-3-2).
Connections: Flanges according to PN 6/10, EN 1092-2, DN 32, 40, 50.
Motor: Synchronous motor with variable speed, standard voltage of single-phase 230 V, frequency of 50-60 Hz, protection class IP 44, and insulation class F.

Operating Modes:

Automatic Mode: The pump automatically sets the operating pressure based on the hydraulic system.
Proportional Pressure Mode: Adjusts pressure proportionally to the current flow.
Constant Pressure Mode: Maintains constant pressure regardless of flow changes.
Fixed Speed Mode: Operates at a constant curve, adjustable via control panel.
Night Mode: Activates when liquid temperature drops by 15-20°C, operating at minimum curve.

Performance and Efficiency: The pumps have an Energy Efficiency Index (EEI) of ≤ 0.21, indicating high efficiency. Characteristic curves are provided to illustrate performance across different models and conditions.

Materials: The pump casing is made of cast iron, the impeller is composite, the shaft is stainless steel, and other components include carbon bearings, ceramic thrust bearings, and EPDM gaskets.

Additional Features: Optional modules include analog input (0-10V), remote on/off input, and output relay.

Catalog excerpts

Energy saving circulating pumps with flanges Construction Energy saving variable speed circulating pump driven by a permanent magnet synchronous motor (pm) controlled by on board inverter. Applications Heating and conditioning 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 ≤ 40 dB (A). - Minimum suction pressure: - 0,05 bar at 75 °C - 0,28 bar a 90 °C. - Maximum glycol quantity: 20%. - EMC according to: EN 55014-1, EN 55014-2 EN 61000-3-2, EN 61000-3-2. - Connections: Flanges according to PN 6/10, EN 1092-2, DN 32, 40, 50. - The benchmark for most efficient circulators is EEI ≤ 0,20. Synchronous motor with permanent magnet. - Motor: variable speed - Standard voltage: single-phase 230 V (-10%;+6%) - Frequency: 50-60 Hz - Protection: IP 44 - Insulation class: F - Overload protection (integrated). - Cable: phases and neutral. - Constructed in accordance with: EN 60335-1, EN 60335-2-51. Series Version DN ports in mm With flanges Max. head in dm connection size mm Special features on request Additional module: - analog input 0-10V - remote on/off input - output relay Features Smart pump NCE H.F adapt its functions to the system: the circulator measures the pressure and the flow and adjusts the speed to the selected pressure. Easy use There are different operating modes selectable from the control p

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Energy saving circulating pumps with flanges Operating modes Automatic mode (factory setting): In this mode the pump automatically sets the operating pressure, depending on the hydraulic system. This mode is recommended in most systems. Proportional pressure mode: The circulator changes the pressure propotionally to the current flow. The pressure value can be adjusted with the + and - buttons. Constant pressure mode: The circulator mantains the pressure constant when the reference flow changes. The pressure value can be adjusted with the + and - buttons. Operating mode-control panel Fixed speed...

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