American Services commercial refrigeration installation near Media knows there are many choices when choosing a refrigerant to run in your commercial refrigeration system. Research studies may recommend one type while a professional may suggest another. There is no official “correct choice” when it comes to commercial refrigeration refrigerant.
In Europe, R404A is the most commonly used refrigerant. It is non-toxic and has zero Ozone Depletion Potential (ODP). However, it does have a high Global Warming Potential (GWP). Ideally, a refrigerant that minimizes ODP and GWP is recommended by environmentalists and professionals.
Some systems have begun using all natural refrigerants such as R744 which offer the advantage of close to zero direct emissions. Unfortunately, they have higher energy consumption, indirect emissions and a higher investment cost.
Common commercial refrigeration systems include centralized direct expansion, distributed direct expansion, cascade systems, secondary systems, and R744 booster transcritical systems. Current research indicates that in direct expansion systems, the use of state-of-the art compressor technology gives the lowest energy consumption and switching to R407A refrigerant will give the best possible environmental impact. Cascade systems that transition to R134a refrigerant significantly improves the total equivalent warming impact (TEWI) but there is a considerable cost increase. An alternative to reduce cost significantly, is to switch to a R407A refrigerant but it will increase the TEWI about 4%.
Each system and application allow for different refrigerant options. Within each of those refrigerant options you need to take a look at your operation and application. Ideally, by going to a natural refrigerant it will benefit the environment compared to conventional refrigerants. However, this is not fiscally possible for every operation.
To schedule an estimate for commercial refrigeration inspection or installation, contact American Services today.