Significant energy savings can be made through the use of frequency converters in your greenhouse heating system.
Standard transfer and circulation pump units are rated to run at a constant speed that is dimensioned to handle extreme weather conditions. Most of the year this extra power is not needed.
A frequency converter will allow you to regulate the speed of the motor - and thus the flow and pressure - quickly and exactly.
Reducing motor speed by 20% for a centrifugal pump corresponds to a 20% reduction in flow, whereas the energy consumption can be reduced by as much as 50%.
By running your pumps at reduced speed during most of the year where full capacity is not needed you can realize significant energy savings.
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