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The main disadvantages of the R-32
While R-32 has several advantages, it also has some disadvantages to consider:
Higher cost: R-32 is a newer refrigerant, and it can be more expensive than traditional refrigerants like R-410A. This can result in higher upfront costs for manufacturers and customers.
Limited availability: As R-32 is a newer refrigerant, it may not be as widely available as traditional refrigerants in some areas. This can make it more difficult to find R-32 systems or replacement parts.
Higher toxicity: R-32 has a higher toxicity than other refrigerants. This means that it can be more harmful to humans if they are exposed to it. It requires more care during the installation, service and maintenance of the equipment and special training of the technicians.
More specific installation and handling: R-32 is a "mildly flammable" refrigerant, which requires specific tools and training to handle it properly. This may add to the cost of installation and maintenance.
Lower refrigeration capacity: R-32 has lower refrigeration capacity compared to other refrigerants so the unit size may need to be bigger to provide the same cooling effect.
It is important to weigh these disadvantages against the advantages when deciding whether to use R-32 in your air conditioning or heat pump system.