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NCE H

Product catalog summary

Overview: The document details the specifications and features of the NCE H energy-saving circulating pumps, which are designed for heating and conditioning systems. These pumps are driven by a permanent magnet synchronous motor and 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).
Sound Pressure: ≤ 40 dB(A).
Connections: Threaded ports ISO 228: G 1 1/2, G 2.
Efficiency: EEI ≤ 0.20 for most efficient circulators.

Motor Details:

Type: Synchronous motor with permanent magnet.
Voltage: Single-phase 230 V (-10%; +6%).
Frequency: 50-60 Hz.
Protection: IP 44, Insulation class F, with integrated overload protection.

Operating Modes:

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

Construction and Materials:

Pump Casing: Cast iron GJL 200 EN 1561.
Impeller: Composite material.
Shaft and Rotor: Stainless steel.
Bearings: Carbon and ceramic thrust bearing.
Winding: Copper wire.
Gasket: EPDM.

Additional Features: Optional modules include analog input (0-10V), remote on/off input, and output relay. Unions available in brass or cast iron.

Performance Charts: The document includes characteristic curves and coverage charts illustrating the pump's performance across various flow rates and pressures.

Catalog excerpts

Energy saving circulating pumps 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: threaded ports ISO 228: G 1 1/2, G 2. - 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 Max. head in dm connection size mm Special features on request Additional module: - analog input 0-10V - remote on/off input - output relay Brass or cast iron unions. Features Smart pump NCE H 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 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 mode: The...

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