Refrigeration systems that require FDNY approval typically handle which refrigerant?

Refrigeration systems that handle ammonia are often subject to FDNY approval due to the potential hazards associated with this refrigerant. Ammonia is considered a toxic and flammable substance, making its use in refrigeration systems particularly scrutinized for safety reasons. The FDNY regulates ammonia refrigeration systems to ensure compliance with safety standards and to mitigate risks related to leaks, exposure, or emergencies.

In contrast, the other refrigerants listed, while they have their own considerations and regulations, do not typically require the same level of oversight from the FDNY. R-410A is a common, non-toxic refrigerant used in residential and commercial applications without the need for specific approvals. Freon-12, also known as dichlorodifluoromethane, is an older refrigerant that has been largely phased out due to environmental concerns but does not usually require FDNY approval when used in legacy systems. Propane, while flammable, is considered a low-risk refrigerant in many applications and does not necessitate the same level of oversight as ammonia.

Thus, the requirement for FDNY approval specifically ties back to the significant safety risks associated with ammonia, making it critical that systems utilizing this refrigerant meet stringent safety standards invoked by regulatory bodies like