What are the only two products that should be circulating in a refrigeration system? (A) refrigeration oil and nitrogen (B) oil and refreigerant (C) refrigerant and nitrogen (D) oxygen and refrigerant

In a refrigeration system, it's crucial to maintain proper operation by using the right materials. The only two products that should be circulating in a refrigeration system are the refrigerant, which is responsible for transporting heat, and oil, which lubricates the compressor and other moving parts. Using substances like nitrogen or oxygen can lead to inefficiencies or even system damage! Understanding the purpose of each component is key to effective troubleshooting and system management. For example, using too much oil can cause compressor issues, while insufficient oil can lead to overheating. It's a delicate balance, so ensuring you have the right mix is essential for your refrigeration system's longevity and efficiency!