What pressure rating should an evaporator coil used in R-410A systems have?

The appropriate pressure rating for an evaporator coil used in R-410A systems is 235 psig. R-410A operates at higher pressures compared to older refrigerants like R-22. As a result, components such as evaporator coils must be designed to handle these elevated pressures safely.

The rating of 235 psig aligns with the typical operating conditions for R-410A, as it ensures that the system can handle the refrigerant's high pressure without risking failure or leaks. Properly rated components are crucial for the reliability and efficiency of a refrigeration or air conditioning system.

Using a coil rated for lower pressures could lead to catastrophic failures, which poses safety risks and can result in damage to the system. Therefore, it's essential to adhere to the specified pressure ratings when installing or maintaining R-410A systems to ensure optimal performance and safety.