We spell it G120P. The G120P variable speed drive from Siemens is ideal for the efficient control of air and liquid media in typical commercial and residential HVAC systems. Using intelligent strategies for controlling fans and pumps, the G120P can achieve up to 60% energy savings compared to conventional control methods – and saves on wear, lifecycle and maintenance costs, too.The G120P is highly reliable and offers many intelligent features and functions tailored to suit your HVAC applications. Thanks to its modular concept, it is exceptionally flexible and service-friendly, and offers ease of installation, commissioning and operation.