STULZ drives down greenhouse gas emissions

STULZ has introduced its new CyberAir 3PRO DX GE4(S) range for use in data centres. The latest addition to the highly successful GE series of precision air conditioning systems with indirect free cooling, the CyberAir 3PRO DX GE4(S) range is available in three sizes with capacities from 24kW to 71kW to suit a variety of room volumes and power requirements. Extensive equipment options are also available to ensure optimum adaptation to individual customer requirements.

As part of its commitment to delivering innovative solutions with minimal environmental impact, STULZ has configured the CyberAir 3PRO DX GE4(S) range to use future proof A2L R454C refrigerant. A2L refrigerants, named after their ASHRAE safety classification, are non-toxic, flame-retardant, deliver high levels of energy efficiency and have reduced global warming potential (GWP) ratings. R454C has a GWP of only 148 and meets the requirements of the F-Gas Regulation 2024/573.

‘R454C offers extensive advantages over other commonly used refrigerants,’ explained Sebastian Maron, senior product manager room cooling, at STULZ. ‘The F-Gas Regulation 2024/573 is a European Union law aimed at significantly reducing emissions of fluorinated greenhouse gases. It tightens the phase down schedule for hydrofluorocarbons (HFCs) and promotes the use of climate friendly alternatives like R454C. We are delighted to be able to offer customers maximum investment security and support the reduction of the CO2 footprint in data centre cooling through innovative design and sustainable development.’

Safety in mission critical environments is vital and a central element of the CyberAir 3PRO DX GE4(S) range is an internal safety concept, which has been specially developed for use with low-GWP refrigerants. The refrigeration circuit is certified and tested to be permanently leakproof, while its optimised design also prevents refrigerant build-up within the unit. Additionally, two explosion proof gas sensors are located in the housing and the control cabinet to continuously monitor refrigerant concentration. If elevated levels are detected, the system automatically shuts down all electrical components, except the fans, and triggers an alarm.

STULZ recognises the importance of user friendliness and its advanced E² control system with touchscreen display enables intuitive operation of the CyberAir 3PRO DX GE4(S) range. Already used across the CyberAir Mini series, the E² control system has been further optimised for the new range with support for extensive interfaces and protocols including Modbus RTU, BACnet IP, BACnet MS/TP, HTTP and SNMP. This facilitates seamless integration into an existing building management system, while functions such as device detection, access control, event and trend recording, as well as an emergency operating mode, ensure maximum operational reliability and transparency.

‘CyberAir 3PRO DX GE4(S) reflects our continued objective of delivering air conditioning solutions that blend cutting edge technology with modern design, user friendliness, energy efficiency, scalability and reliability,’ concluded Sebastian Maron. ‘By supporting the use of R454C refrigerant throughout the range, we're also helping our customers reduce greenhouse gas emissions and strengthen their environmental credentials. Further additions to the series are planned and STULZ account managers are available at any time for further information and individual advice.’