At what pressure must service hoses be rated for use on an R-410A System?

Service hoses used on R-410A systems must be rated for a minimum pressure of 800 psig. This requirement is due to the operating pressures of R-410A, which typically operates at higher pressures compared to other refrigerants, such as R-22.

The increased pressure levels in R-410A systems necessitate hoses and fittings that can safely handle these conditions to prevent failures that could result in hazardous situations. Operating with hoses rated below the required threshold can lead to leaks, ruptures, and potential safety risks for technicians and the environment.

The 800 psig rating ensures that the hoses have a sufficient margin of safety during both the charging and service processes, accommodating pressures that may exceed standard operating levels during certain conditions. This is why understanding the proper specifications for service equipment in refrigerant systems is crucial for both safety and system integrity.