In which section of a refrigeration system is the worst place to have a leak?

The high side liquid section of a refrigeration system is considered the worst place to have a leak due to the high pressure and potential hazards involved. When a leak occurs in this section, the ammonia or refrigerant is under significantly higher pressure compared to the low side of the system. This elevated pressure can lead to rapid release of refrigerant, posing risks not only to equipment integrity but also to personnel safety and environmental concerns.

The high side liquid also typically houses the liquid receiver or condenser where refrigerant is stored at a relatively ambient temperature. A leak in this area can lead to substantial losses of refrigerant, emphasizing the need for stringent safety measures. Exposure to high-pressure refrigerant can cause frostbite if contact occurs and can also generate flammable mixtures with air. Hence, leaks here must be addressed immediately to prevent serious accidents or hazardous situations.