What is the purpose of an energy cut-off (Eco) in a plumbing system?

The purpose of an energy cut-off (Eco) in a plumbing system is primarily to reduce energy costs. This component is designed to monitor the temperature or pressure in systems such as hot water heaters. When the energy cut-off activates, it stops the heating process once the desired temperature is reached, preventing unnecessary energy consumption. This is beneficial not only for reducing utility bills but also for enhancing the efficiency of the system.

In contrast to the other options, an energy cut-off is not intended to replace a temperature relief valve, increase water pressure, or minimize steam accumulation. Each of these components has its own specific function within a plumbing system that does not align with the primary role of the energy cut-off. Understanding the energy cut-off's function can help in recognizing its importance in energy management within plumbing systems.