HFO-1234ze, marketed as a replacement refrigerant for HFCs, could produce significant amounts of an HFC with a GWP of more than 12,000, the study says.
RAC equipment owners do not understand the value of routine maintenance in reducing operating costs and avoiding breakdowns, says Australian study.
Frascold parallel compressors, heat reclaim, hot-gas defrost and solar panels cut electrical costs of cold-storage facility.
The company made over 20 transcritical CO2 systems in 2020.
The new fittings have a special looped plate wall, and a 180° return bend, which does away with potentially hazardous ‘dead legs’ in heating and potable water.
Hussmann Oceania follows Panasonic’s introduction of the unit in Europe two months ago.
Michael’s SUPA IGA store’s transcritical CO2 HVAC&R system is seen as more efficient than R404A systems.
The installation, with ejectors and parallel compression, is for Australian retailer Tong Li Supermarket.
Retailer expects energy savings to yield a five-to-seven year ROI on premium paid for equipment, one of a small number of ammonia systems installed in stores worldwide.