MB Group Builds 4-pipe CO₂ Heat Pump for Australian Supermarket

Australia's MB Group has built a four-pipe CO₂ (R744) heat pump for a supermarket in Australia. The Australian HVAC contractor said the unit is already running in a supermarket in the state of New South Wales and that a second unit is being built and will be started up in November. Along with providing simultaneous heating and cooling the four-pipe CO₂ heat pump also features integrated dehumidification.