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Full range of intelligent, high-efficiency circulator pumps for heating, cooling, boiler, heat pump, solar thermal systems, domestic hot water applications


HES New Medium High Efficiency Type

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circulator
Supply voltage:
Flow rate, Qmax:
Pump head, Hmax:
Liquid temperature:
System pressure, Pmax:
Power Range:
Ambient temperature:
EEI:
Enclosure class:
Insulation class:
   1 x 230 V – 50/60 Hz
   6.6 m3/h
   12 m
   +2°C to +95°C (TF 95)
   1.0 MPa/10 bar
   15-140 W
   0°C to +40°C
   ≤ 0.23
   IP 44
   F
» 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

   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
• Proportional pressure curve (high and low)

   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
• Constant pressure curves (low and high)

pic
   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 pic for 6 seconds under this mode to vent air in the pump.

   Constant speed mode

Four constant speed modes for constant flow applications

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
HES-RS25/8 6.6 m³/h 8 m ≤ 0.23 G 1 1/2" G 1" 10 bar 180 mm 1~230 V,
50/60 Hz
2.3 kg
HES-RS25/10 6.6 m³/h 10 m ≤ 0.23 G 1 1/2" G 1" 10 bar 180 mm 1~230 V,
50/60 Hz
2.3 kg
HES-RS25/12 6.6 m³/h 12 m ≤ 0.23 G 1 1/2" G 1" 10 bar 180 mm 1~230 V,
50/60 Hz
2.3 kg

Measurements

pic pic

Curves

pic