In a single-path system, the heating and cooling coils are arranged how?

In a single-path system, the heating and cooling coils are arranged in series. This configuration ensures that the air passes through both the heating and cooling coils sequentially within the same airflow path. The sequential arrangement allows the air to be conditioned effectively, by either heating or cooling it as necessary before it is distributed throughout the space.

This setup is particularly beneficial for systems where a constant air stream is required, as it allows for more precise temperature control by ensuring that the air is conditioned uniformly before reaching the desired areas. Achieving a series arrangement in a single-path system simplifies the design and ensures that each coil adequately impacts the air's temperature.

The other arrangements, such as parallel, alternate, or loop configurations, do not provide the same comprehensive thermal conditioning in a single airflow path, leading to potential inefficiencies in heating and cooling performance.