HVAC

The HVAC industry is vast and diverse. Our focus is specifically on commercial and industrial chillers and rooftop units.

OEMs in this sector face several key challenges:
● Constantly evolving refrigerant regulations, which require frequent adaptation and compliance efforts.
● Significant equipment damage caused by incorrect power supply, often leading to costly warranty claims.
● High energy consumption, as chillers and rooftop units are among the largest energy loads in a building. Accurate energy metering and cost allocation are therefore essential.

We understand these challenges and design our solutions to help OEMs address them effectively and reliably.

In data centers, if a temperature management system fails, server room temperatures can reach critical levels within minutes. The only immediate solution is often an emergency shutdown — a worst-case scenario for any data center operator.

To prevent this, robust voltage protection is essential — going beyond basic phase sequence and phase loss safeguards.

At the same time, with energy consumption being a critical factor, accurate energy metering is increasingly required to ensure efficiency and cost control.

Although not new, heat pumps are quickly becoming the preferred solution for domestic heating and cooling, thanks to their ability to improve a building's overall energy efficiency and help meet regulatory requirements.

Operating most often at variable speed — and in some regions running continuously from October to April — heat pumps are frequently single-phase and represent one of the most significant energy loads in the home.

For this reason, accurate energy metering is essential to enable effective load balancing and support energy-saving strategies.

The heat pump and chiller industries share many similarities, as the primary technical difference lies in the use of a 4-way valve to switch between heating and cooling modes. As a result, their operational requirements are often aligned. However, heat pump manufacturers typically produce both residential and commercial systems, which must be managed differently due to their distinct usage patterns and performance expectations.

In addition, energy consumption monitoring and peak current prevention are often even more critical for heat pumps than for chillers, especially given their continuous operation and role in energy-efficient building strategies.

Within the supermarket refrigeration sector, the use of low global warming potential (GWP) refrigerants requires manufacturers to review their existing electrical panel design since some of these new refrigerants are also flammable.
Our wide range of solid state contactors provides an arc free starting solution that can be suitable for switching of compressors. This characteristic makes them ideal for use in environments with flammable refrigerants and an ideal replacement of electromechanical relays and contactors.
For larger compressors we offer a wide range of soft starters that are specifically designed for compressors.

Air handling units (AHU) provide proper ventilation and humidity in buildings by mixing and filtering outside air. The air handling unit (AHU) is the heart of central air conditioning. AHUs collect outside air and room air, remove dust and other particles from the collected air, adjust the temperature and humidity and then supply comfortable and refreshing air-conditioned air into individual rooms through ducts. Air can then be warmed further using duct heaters.

Duct heaters are used in forced air applications to provide additional occupants comfort by providing dedicated space heat or, in some cases they are used to supplement existing heating systems.
Applications may vary from space heating, primary heating, auxiliary heating and also multi-zone heating applications.
To maintain the required comfort level for occupants, the heaters require to be switched modulated for a finer control of the building temperature. We offer a wide range of single phase and three phase proportional controllers for duct heating applications.

Fire dampers are used to prevent the spread of fire in warehouses and are indirectly part of an energy efficiency plan. Carlo Gavazzi provides advanced solutions with ready-to-use junction boxes for fast and easy decentralized installation, capable of monitoring and controlling fire damper actuators.

Pellet burners require components that can work under harsh ambient conditions with regards to temperature and dust. Detecting the presence of wood in the burner is critical for correct and safe operation of the burner.
Our range of capacitive sensors (CA30CA) is designed with our^{TripleshieldTM} technology to ensure correct detection under all conditions. Read more about our range of capacitive sensors.