The flexibility of the new modular structure will allow performance testing of single units or 2 units simultaneously in different environmental conditions. This will also allow for testing of multifunctional units intended for the simultaneous production of heating and cooling. Offering a total testing capacity of up to 2 MW on a wide range of operating ambient temperature from -15°C to + 55°C. Moreover, the new facility is designed for the use of the latest generation of Lightly Flammable A2L refrigerants with low environmental impact that in the coming years will replace the refrigerants previously used over the last 20 years.