Access fittings are used to gain access to what?

• A. Are used to gain access to type 1 appliances
• B. Provide a direct read of refrigerant temperature
• C. Seal connections in the refrigeration system
• D. Act as pressure relief devices

Answer: (A)

Access fittings are the service ports that give you access to the refrigerant side of a system so you can attach gauges and recovery equipment during servicing. This ability is specifically important for Type I appliances (the small appliances with up to five pounds of refrigerant), where you need a reliable point to connect for measuring pressures or recovering refrigerant.

They aren’t used to read refrigerant temperature directly—that’s done with a thermometer or sensor. They aren’t meant to seal connections, which is the job of seals and fittings designed for that purpose. And they aren’t pressure relief devices, which are safety features to vent excess pressure. The purpose of access fittings is to provide access to the type of system being serviced, namely Type I appliances.