999 Inverters | Schneider Altivar energy saving HVAC drives


Image of Schneider UK Altivar 212 drive


Effective in the UK from 2015, the Energy Savings Opportunity Scheme (ESOS) is a mandatory energy assessment and energy saving identification scheme for large undertakings for organisations employing over 250 people.


They will be required to audit their total energy consumption including for buildings, industrial activities and transport  and to identify cost-effective energy efficiency recommendations.


To meet demand for UK environmental protection legislation, and improving and corporate profitability Schneider developed their ATV212 and ATV61 heating, ventilating & air conditioning (HVAC) drives for buildings.


Good business sense means many building owners and facility managers are continually seeking  ways to save energy and money and this has led to new construction projects that achieve energy efficiency to benefit the building owner and occupants. Existing HVAC infrastructure also offers significant opportunities for improvement.


Since HVAC systems in particular are huge energy consumers, highly efficient systems offer the opportunity for great energy savings. HVAC equipment offering opportunities for energy savings  including centrifugal air handler fans and exhaust fans; centrifugal pumps for hot and cold water; cooling tower pumps and fans.


The payback period of a VFD averages 18–24 months but can be less than 12 months. The period depends largely on the type and size of the system and how much time the motor is operating at full speed versus how much flow is actually required to heat or cool the building space. The life cycle of HVAC equipment in commercial buildings is typically 15–20 years, so a one or two-year payback period can generate a substantial return on investment.


Improved comfort levels

Variable speed drives also contribute to the building’s overall comfort level by optimizing and regulating air flow and temperature into the building’s occupant space. Unlike a fan that runs either full speed or off, a variable speed drive can run at all speeds in between, allowing facilities managers and building occupants more control to adjust the temperature.


The Schneider Altivar ATV212 and ATV61 ac variable speed drives take occupant comfort one step further with accurate flow control and a modulating output switching frequency to reduce noise pollution caused by motor operation.


In addition, VFDs reduce the long-term wear and tear on equipment. The drives provide a soft start instead of slamming motors on at full speed—so HVAC systems last longer, requiring less maintenance and causing fewer instances of unscheduled downtime.


999 Inverters is the specialist inverter division of 999 Automation – Europe’s fastest-growing on-line specialist industrial automation supplier. 999 Inverters is able to provide ESOS energy saving advice for HVAC applications.

Recent blog posts