What should be checked when preparing a clean evaporate coil inspection?

When preparing for a clean evaporator coil inspection, checking the proper functioning of the condensation drain line is crucial because the drain line is responsible for removing moisture that condenses on the coil during the cooling process. If this drain line is clogged or not functioning correctly, it can lead to water backing up, which can cause water damage, promote mold growth, or create other operational issues for the HVAC system. Ensuring that the drain line is clear helps maintain efficiency and prevents potentially damaging scenarios.

While other factors such as the temperature of the coil, the condition of the insulation, and the color of the coil may provide insights into the overall performance and health of the HVAC system, they do not directly impact the immediate functionality and maintenance requirements associated with the condensation process. Therefore, checking the drainage functionality is a priority in ensuring the system operates smoothly and efficiently.