In recent years, the performance of variable-speed drives has improved dramatically, but ABB estimates that 70% of building-services consultants may not be using the most up-to-date specifications when selecting variable-speed drives for installations. Among the features of many of today’s drives are built-in PID controllers that can cope with demanding pump and fan functions without the added expense of an external controller.
The brochure also points consultants towards a complete drive technical specification that can be downloaded from ABB’s website and pasted into any specification.
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