3 Product Overview
3.1 Advantages
3.1.1 Why Use a Drive for Controlling Fans and Pumps?
A drive takes advantage of the fact that centrifugal fans and pumps follow the laws of proportionality for such fans and pumps. For
further information, see
3.1.1.2 Example of Energy Savings
.
3.1.1.1 The Clear Advantage - Energy Savings
The clear advantage of using a drive for controlling the speed of fans or pumps lies in the electricity savings.
When comparing with alternative control systems and technologies, a drive is the optimum energy control system for controlling
fan and pump systems.
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Illustration 1: Fan Curves (A, B, and C) for Reduced Fan Volumes
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ENERGY
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Illustration 2: Energy Savings with Drive Solution
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14 | Danfoss A/S © 2021.04
Product Overview
VLT® Flow Drive FC 111
Design Guide