The Danish Technology Institute is partnering with Denmark-based manufacturer Unic Air to create a prototype of the HVAC unit for testing.
Multiple examples are unveiled by HVAC&R engineering specialists Frigo-Consulting.
The four-pipe transcritical CO2 system can operate in cooling and heating modes simultaneously or independently of each other.
The Danish OEM is currently working on 30 projects across Europe, including many district heating installations, with a total capacity of more than 50MW.
The commercial system, offering 17–268kW capacity, will be available in spring 2023.
The six-cylinder transcritical HGX56 CO₂ T is designed for industrial refrigeration and heat pump applications.
A new stainless-steel changeover valve can be used both for CO2 and ammonia.
Customers are also asking about larger compressors, with little faith in HFOs as a long-term solution.
Two 1.5MW CO2 heat pumps will provide heating and cooling for almost 300 households.
Its Glebe Hill supermarket in Howrah features CO2 heat pumps and an R290 chiller in novel deployment.
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