Italian component manufacturer Carel is ready for the rollout of CO2 (R744) in mobile air conditioning applications, offering the c.pCO sistema controller platform, which is designed for CO2 cooling.

Carel bills the c.pCO sistema controller as well-suited for the challenges of CO2 cooling on its website. It is ready for the high-pressure levels of transcritical CO2 systems, capable of fine temperature control in both cooling and heating modes, equipped with compressor drivers, and is a “very sustainable solution” thanks to algorithms for reduced energy consumption. It can also be integrated into proprietary supervisory systems.

The c.pCO sistema platform for CO2 mobile air conditioning is based on programmable controllers that enable it to control both subcritical and transcritical systems. It “guarantees reliability, while being easily modifiable, so as to differentiate between the air-conditioning and refrigeration unit in terms of both appearance and functions,” Carel said. Notably, c.pCO is customizable for CO2 reverse-cycle air-conditioners.

Last year, Volkswagen and its Audi subsidiary began offering electric vehicles with CO2 heat pumps. In heat pumps for electric vehicles, CO2, with its thermodynamic properties, is considered to have advantages over other refrigerants.

Carel’s algorithms are made available to OEMs “who want to achieve the highest levels of energy efficiency, together with a strategy for managing and controlling variable-speed BLDC compressors,” the company said.

The platform is EN50155 certified, a standard covering electronic equipment used for railway applications. It also has Bluetooth- and NFC-connectivity options, an optional wi-fi gateway and a fully customizable user interface. It can be managed remotely and includes cloud services.

The c.pCO sistema is available in different sizes, based on the number and types of input, and whether the built-in terminal is fitted and the size of flash memory. 

The plastic case with DIN rail mounting guarantees high mechanical protection of the board, and reduces the risk of electrostatic discharges, Carel explained. It also houses an optional built-in user interface with semi-graphical LCD and six buttons backlit by LEDs.

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