What must be maintained in continuity for a copper oil supply or return line beneath a floor surface?

The requirement to maintain continuity for a copper oil supply or return line beneath a floor surface refers to ensuring that the lines are installed in a way that they are continuous from one point to another without any breaks or interruptions. This continuity is crucial for several reasons, including the prevention of leaks, ensuring a consistent flow of oil, and maintaining system efficiency. By keeping the installation continuous, it also minimizes potential failure points where issues could arise, such as corrosion or damage from external factors.

Regular maintenance, while important for the overall functioning of the system, does not specifically address the need for the lines to be installed in a continuous manner. Visible access is also not directly related to the continuity of the installation; rather, it pertains to ease of inspection and maintenance. Lastly, installed insulation may be required in some contexts to prevent heat loss but does not influence the continuity of the line itself.