Applications
The energy-efficient circulation pump is designed for water circulation in heating systems.
Underfloor heating systems
Single-pipe systems
Two-pipe systems
Pumping liquid:
Clean, non-aggressive and non-explosive liquids, not containing solid particles, fibers or mineral/vegetable oil
In heating systems, water must meet the requirements of accepted standards of water quality in heating systems.
Operating conditions
- Liquid temperature from -10 °C to +110 °C
- Ambient temperature from 0 °C to +40 °C
- Maximum permissible working pressure: 10 bar
- Storage: -10°C/+50°C max. relative humidity 95% at 40 °C
- Certifications: in conformity with CE requirements
- Sound pressure ≤ 65 dB (A).
- Max. quantity of ethylene glycol: 40%
- EMC according to: EN 55014-1, EN 55014-2, EN 61000-3-2, EN 61000-3-3.
- Flanged connection DN 32,40,50,65 PN 6/10
- The energy efficiency index of circulators is IEE ≤ 0.23.
- The benchmark for most efficient circulators is EEI ≤ 0,20.
Motor
- 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.
Designation
NCE HQ2 40F - 100 / 220
NCE = Series
HQ2 = Version
40 = DN ports in mm
F = Flanged connection
100 = Max. head in dm
220 = connection size mm
Materials
| Component |
Material |
| Pump casing |
Cast iron with cataphoresis coating |
| Impeller |
Composite PES |
| Shaft |
Ceramic |
| Ball bearings |
Ceramic |
| Thrust bearing |
Graphite carbon |
| Rotor |
Stainless steel jacket |
| Electronic card |
... |
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 proportionally to the current flow.
The pressure value can be adjusted on three curves.
Constant pressure mode:
The circulator maintains the pressure constant when the reference flow changes.
The pressure value can be adjusted on three curves.
Fixed speed mode:
The circulator works with constant curve and the curve could be changed over three curves.
Night mode:
The pump is changed to an automatic deceleration curve at night, so that it runs at low performance and low energy consumption.
Temperature mode
This control mode is suitable for systems with fixed system characteristic curves, and the pump can be controlled based on feedback from the system temperature sensor to operate under the working conditions required by the user.