The HVAC industry is undergoing a significant transformation, driven by the urgent need for energy efficiency and precise environmental control. Variable Frequency Drives (VFDs) have become a key technology in this, offering a compelling alternative to traditional motor control methods.

Invertek Drives, a recognised leader in VFD innovation, provides the Optidrive range, engineered to meet the stringent demands of modern HVAC systems, including pumping, ventilation, and compressors, in Building Management Systems (BMS). Its Optidrive Eco, E3, and P2 are designed for such systems, whereas its Coolvert drive is for BLDC compressors, heat pumps, and CDUs.

HOW OPTIDRIVE VFDS OPTIMISE HVAC OPERATIONS

At its core is a VFD's ability to precisely manipulate the speed of an AC motor by adjusting the frequency and voltage of the electrical supply. 

This dynamic control provides a range of benefits within HVAC systems. Traditional HVAC systems often operate on a "start-stop" principle, running motors at full speed (Direct Online Operation) regardless of demand. 

This leads to significant energy wastage. Optidrive VFDs enable motors to operate at variable speeds, precisely matching the real time requirements of the system. This "on-demand" operation drastically reduces energy consumption, particularly in applications like fans, pumps, and compressors where load requirements fluctuate. 

The energy savings directly reduce operational costs and a smaller carbon footprint. Furthermore, VFDs provide granular control over critical HVAC parameters such as airflow, water flow, and temperature. 

This fine-tuned control allows for the creation of optimal indoor environments with improved comfort and air quality. For instance, in a hospital setting, where precise temperature and humidity control are paramount, VFDs can ensure a stable and comfortable environment for patients and staff. 

VFDs' "soft start" capabilities eliminate the abrupt starts and stop associated with traditional motor starters. This significantly reduces mechanical stress on motors, bearings, and other components, leading to extended equipment lifespan and reduced maintenance requirements. Reduced maintenance translates to lower downtime and improves overall system reliability. 

In addition, VFDs contribute to a quieter operational environment by minimising the noise and vibrations often associated with conventional motor control methods. This particularly benefits noise sensitive environments such as libraries, schools, and residential buildings.

A RANGE OF SOLUTIONS FOR DIVERSE HVAC NEEDS

Invertek Drives offers a diverse range of Optidrive VFDs, each tailored to specific HVAC applications. The Optidrive Eco series is purpose-built for fan and pump applications, incorporating specialised features like multiple fan control, automatic resonance avoidance, and integrated fire mode for enhanced safety. 

The Eco series optimises energy efficiency and performance in ventilation and hydronic systems. A versatile and user-friendly VFD, the Optidrive E3 is suitable for a wide variety of HVAC applications. Its intuitive interface and dedicated parameter modes simplify commissioning and operation, making it ideal for simple and complex systems.

Designed for demanding applications, the Optidrive P2 offers advanced motor control algorithms and integrated PLC functionality. This makes it well-suited for sophisticated HVAC systems requiring precise control, complex logic sequences, and integration with building management systems.

PROVEN PERFORMANCE IN REAL-WORLD HVAC APPLICATIONS

The efficiency of Optidrive VFDs is validated by their successful implementation in diverse HVAC projects worldwide. 

At Kuala Lumpur Airport, Optidrive E3 VFDs managed the air conditioning system in the Hajj pilgrim assembly area. The result was precise temperature regulation and significant energy savings, ensuring comfort for large crowds while minimising environmental impact. In Spain, Optidrive P2 VFDs are being utilised to control solar-powered water pumping systems. 

By dynamically adjusting motor speed based on solar energy availability, these VFDs maximise water output while ensuring system reliability and efficiency. A Norwegian hospital upgraded its refrigeration system to utilise the environmentally friendly R744 refrigerant. 

Optidrive VFDs provided precise control and energy optimisation in this critical application, ensuring safe and efficient storage of vital medical supplies. 

An Optidrive E3 VFD was installed to control the ventilation system in a nursery. This resulted in improved air quality, reduced energy consumption, and quieter operation, creating a healthier and more comfortable environment for young children. 

Optidrive VFDs also play a critical role in smoke extraction systems, ensuring reliable and efficient operation during fire emergencies. By precisely controlling fan speed, these VFDs facilitate the rapid removal of smoke and fumes, safeguarding lives and property.

Invertek Drives' Optidrive VFD range presents a comprehensive solution for elevating HVAC system performance. These VFDs create comfortable, sustainable, and safe environments in various applications by providing precise control, energy efficiency, and enhanced reliability. 

As the HVAC industry continues to evolve, Invertek Drives remains at the forefront, providing innovative solutions that meet the ever-increasing demands for efficiency and performance.

You can find out more about Invertek Drives dedicated HVAC VFD solutions here: www.invertekdrives.com/vfd-industries/hvac

For media inquiries, please contact:
Owain Betts, PR and Communications Manager  
Invertek Drives Ltd  
Phone: +44 (0)1938 558 253  
Mobile: +44 (0)7483 072 739  
Email: Owain.Betts@shi-g.com  
Website: www.invertekdrives.com