Lennox R32 rooftop adds flexibility and improves efficiency
13th March 2024
ITALY: Lennox has launched Evio, an air-cooled rooftop unit utilising R32 refrigerant and providing great flexibility between airflow range and power capacity for a wide range of applications.
Debuted at this week’s Mostra Convegno in Milan, the Evio offers improved supply air flow up to 49,500m3/h. Further improvements include wider outdoor operating limits from -19°C to 48°C, and better thermal and acoustic insulation via a 50mm thick double-skin panel of injected PU foam.
Seasonal efficiency exceeds Ecodesign directive requirements with seasonal space heating energy efficiency up to 168% and seasonal space cooling energy efficiency up to 207%.
Energy-efficiency is improved through the use of a new electronic expansion valve, a multi-scroll tandem compressor and full EC fan motor technology for variable airflow control. For cooling, a new hydrophilic coil helps ensure a 27% rise in SEER (average across the range) compared with the existing Lennox eBaltic rooftop system, while for heating SCOP is up 18%.
Comparing total cost of ownership with models of the same thermal capacity, Aurélie Pages, senior marketing manager at Lennox EMEA, said that operating 24/7 for 15 years in a climate such as that of France, users of the Evio could expect to save up to €35,800 in energy costs.
Lennox EMEA maintains that the combination of its proprietary coil technology and R32 refrigerant gives the new rooftop range a very low CO2 footprint, with validation provided by environmental protection organisation PEP Eco passport.
Intuitive control
The Lennox Evio controller features a modern user interface for total control of the building’s climate. Newly available options include an attractive 7in touchscreen multi-unit display and a service web HMI in support of easier commissioning and maintenance.
Available in improved cooling and heating capacities of 25-250 kW, the Lennox Evio comes in various circuit/coil concepts based on a different combination of compressors and indoor/outdoor fans to suit the application.
