HEC Commercial Circulator Pump
Description
Electronically controlled and high efficiency circulator pumps for commercial buildings.
Suitable for:
- Commercial air conditioning
- Commercial heating
- Commercial hot water recirculation
- District cooling
- District heating
- Domestic hot water recirculation
- Domestic heating
- Cooling
- Industrial heating
Parameters
Supply voltage:1 x 230 V – 50/60 Hz
Flow rate, Qmax:10.8 m3/h
Pump head, Hmax:10 m
Liquid temperature:+2°C to +110°C (TF 110)
System pressure, Pmax:1.0 MPa/10 bar
Power Range:5-47 W
Ambient temperature:0°C to +40°C
EEI:≤ 0.23
Enclosure class:IP 44
Insulation class:F
Benefits
» Ready for Conversion according to Ecodesign Requirements for 2015(ErP) with EEI ≤ 0.23
» Providing energy savings and comfort level
» Automatic and continuous detection of optimal duty point by ECO
» High safety – built-in electrical and thermal protection of the pump
» Fault prompt function
» Low noise level
» Based on 500,000 times test in extreme conditions » Suitable for light commercial application
Key Features
Constant speed mode
Two constant speed modes – min. and max. -for constant flow applications
Constant pressure mode
• The pump maintains constant pressure regardless of the flow
• The preferred operation mode for under floor heating and 2 string systems with low flow variation
Proportional pressure mode
• If the proportional pressure mode is selected, the differential pressure varies proportionally with the flow, i.e. higher flow means higher differential pressure
• Proportional pressure is the preferred choice for one-string systems with high flow variation
ECO mode
• The factory setting, ECO, analyzes the heating system and automatically adjusts the pump setting to meet the heating requirement. The result is optimum comfort and a minimum of energy consumption.
• ECO can be used in 80% of the heating system.
Air-vent mode
Press the setting button 
for 6 seconds under this mode to vent air in the pump.
Technical Data
| Type | Max. volume flow Qmax | Max. delivery head Hmax | Energy efficiency index (EEI) | Thread | Threaded pipe union | Rated pressure | Overall length | Mains connection | Gross weight |
|---|---|---|---|---|---|---|---|---|---|
| HEC 25/8 | 7.5 m³/h | 8 m | ≤ 0.23 | G 1 1/2″ | G 1″ | 10 bar | 180 mm | 1~230 V, 50/60 Hz | 3.5 kg |
| HEC 25/10 | 7.8 m³/h | 10 m | ≤ 0.23 | G 1 1/2″ | G 1″ | 10 bar | 180 mm | 1~230 V, 50/60 Hz | 3.5 kg |
| HEC 32/8 | 10.2 m³/h | 8 m | ≤ 0.23 | G 2″ | G 1 1/4″ | 10 bar | 180 mm | 1~230 V, 50/60 Hz | 3.7 kg |
| HEC 32/10 | 10.8 m³/h | 10 m | ≤ 0.23 | G 2″ | G 1 1/4″ | 10 bar | 180 mm | 1~230 V, 50/60 Hz | 3.7 kg |
Measurement
| Type | L1 (mm) | L2 (mm) | B1 (mm) | B2 (mm) | H1 (mm) | H2 (mm) | G (inch) | Material of rear housing |
|---|---|---|---|---|---|---|---|---|
| HEC 25/x | 180 | 90 | 129 | 64.5 | 236 | 184 | 1 1/2″ | cast iron |
| HEC 32/x | 180 | 90 | 129 | 64.5 | 236 | 184 | 2″ | cast iron |
Performance Curve
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