Air conditioners and thermoelectric units

Technology to control the climate in electrical panels

CCU Roof-mounted cooling units

They allow the cooling of electrical panels in conditions of limited space, with anti-condensation protection and operational safety.

CCU Series wall-mounted indoor cooling units

Wall-mounted cooling units with different cooling outputs, suitable to satisfy several application needs in indoor environments.

CCU Series wall-mounted outdoor cooling units

Wall-mounted cooling units, suitable for cooling electrical panels located outside or in applications with harsh environmental conditions.

Thermoelectric units

Heat pumps which exploit the Peltier effect (thanks to specific thermoelectric modules). They are designed for electrical panels in industrial applications. Furthermore, the AC thermoelectric units are characterised by the power supply integrated in the cover, which remains outside the electrical panel, avoiding additional internal heat production.

Accessories for cooling units

Optional products for collecting condensation in thermoelectric units and the additional use of filters in air conditioners.

More information

Information about Peltier cells and air conditioners

What's a TCU?

TCU stands for Thermoelectric Cooling Unit. These devices are designed to transfer heat (used for cooling the electrical panels, but can also be used to achieve the opposite effect, simply by reversing the power supply polarity). A TCU cools by using only electrical energy exploiting a physical phenomenon known as the "Peltier effect".

The advantages of thermoelectric cooling units

There are no mechanical moving parts in a thermoelectric unit (except for the fan, when present). That is why a TCU is very reliable. It has a nearly limitless life and is maintenance-free. The absence of moving parts makes the device insensitive to vibration and means that it can operate in any position, making it particularly suitable for applications on moving systems. It does not use gas (CFC) and its structure is much simpler and more compact than a compressor air conditioner.

Thermoelectric units: How do they work?

A thermoelectric unit is a small solid-state heat pump. The heat is transferred through the passage of electrical current in the thermoelectric modules, which constitute the heart of the system. The Peltier effect means that one side of the cell (the cold side) cools down and absorbs the surrounding heat, while the opposite side (the warm side) heats up and surrender the heat absorbed by the cold side into the surrounding environment. The process can be reversed by reversing the direction of the electric current.

The refrigeration cycle

The compressor compresses the refrigerant (thus bringing it to high pressure and high temperature), pushes it through the condenser, where it is cooled by the ambient air, passing from a gaseous state to a liquid state and consequently releasing heat. In liquid state, the refrigerant passes through the capillary tube and reaches the evaporator, where it absorbs the heat (subtracting it from the environment) necessary to pass again from liquid to gaseous state. The refrigerant is then returned to the compressor, thus completing the cycle.

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