The unit is 15% more efficient than Atlas Copco’s current variable speed drive compressor (the GA 7-37 VSD), and is said to provide a leap in Free Air Delivery (FAD) of 12%. Atlas Copco says this level of energy efficiency is made possible by the company’s 100% patented interior permanent magnetic (iPM) motors which drive, and form the heart, of the new GA 7-15 VSD+ compressor range. This the first time Atlas Copco has manufactured the motors for its compressors.

The vertically mounted, IP66, oil-cooled, iPM motor, was designed by Atlas Copco to match its screw element, and is fully enclosed, making it reliable and maintenance-free. The direct drive motors are IE4 certified to the highest levels of motor efficiency. 

A vertical layout provides a canopy size 55% smaller than many traditional compressor designs.

The new compressor runs at 62dB(A), due to the integration of an ERP 2015 compliant efficient fan motor that reduces electricity consumption and noise levels. Low noise levels are further aided by the compressor having separate compartments for the drive train and cooling system. As an additional option, a full feature version of the GA 7-15 VSD+ is available with an integrated dryer.

The new compressor range was sent for third party verification and extensive testing by independent testing laboratory Laborelec, which substantiated the claims for energy savings.