In HVAC systems, what can failure to maintain metering devices lead to?

Failure to maintain metering devices in HVAC systems can lead to increased energy inefficiency and potential system breakdown. Metering devices, such as expansion valves, are crucial for controlling the flow of refrigerant through the system. When these devices are not functioning properly due to lack of maintenance, they can cause the system to operate inefficiently, which may result in higher energy consumption. This inefficiency not only increases operating costs but can also lead to excessive wear and tear on components, ultimately resulting in potential system failure or breakdown.

Regular maintenance of metering devices ensures that refrigerant flow is optimized for the specific conditions of the HVAC system, helping to prevent issues like refrigerant leaks, improper cooling or heating, and pressure imbalances. By maintaining these devices, one can extend the lifespan of the overall HVAC system, maintain energy efficiency, and ensure consistent performance.