What is a primary function of the heat strips in electrical box 3?

The primary function of the heat strips in electrical box 3 is to regulate temperature. Heat strips are designed to provide supplemental heating to maintain an appropriate and consistent temperature in a space, particularly when the main heating system is unable to meet the demand or during particularly cold conditions.

They work by converting electrical energy into heat, which is then distributed to warm the air in the environment. This capability is crucial in ensuring that a space remains comfortable and avoids issues related to freezing or extreme cold, which can affect both the environment and equipment.

While other options may touch on related aspects of environmental control, they do not align with the primary role of heat strips, which is explicitly focused on providing heat to maintain temperature rather than cooling, backup power, or moisture filtering.