Condensate drain piping shall not be installed with a slope of less than?

In the context of condensate drain piping, the slope is essential to ensure that the condensate flows properly without pooling or causing blockages. A minimum slope of 1/8 inch per square foot is required to facilitate adequate drainage. This slope allows gravity to effectively pull the condensate down the piping, minimizing the risk of standing water within the line, which can lead to mold growth, clogs, or other drainage issues.

This standard is based on established plumbing codes that specify the necessary slope for drain lines to ensure efficiency and reliability. A slope that is too shallow, such as less than 1/8 inch per square foot, could result in improper drainage, leading to potential maintenance problems in the future. Therefore, maintaining this minimum slope is crucial for the effective performance of condensate drain systems in HVAC applications.