What Is The Difference between RTU And MAU?

In the context of commercial and industrial buildings, RTUs and MAUs serve distinct purposes related to HVAC (Heating, Ventilation, and Air Conditioning) systems.

Rooftop Units (RTUs)

Function: RTUs are self-contained heating and cooling systems installed on rooftops. They provide both heating and cooling as well as ventilation.

Components:

Air conditioning components (compressors, evaporators).

Heating elements (gas or electric).

Fans for air circulation.

Usage: Commonly used for larger spaces, such as commercial buildings, where centralized climate control is needed.

Make-Up Air Units (MAUs)

Function: MAUs are designed to supply fresh air to a building, replacing the air that is exhausted from the space.

Components:

Filters to purify incoming air.

Heating or cooling elements (if needed).

Fans for distributing the fresh air.

Usage: Essential for maintaining indoor air quality, particularly in spaces with high exhaust flows, like kitchens or manufacturing areas.

Key Differences

Purpose: RTUs provide comprehensive climate control (heating, cooling, ventilation), while MAUs focus on introducing fresh air.

Installation Location: RTUs are typically installed on rooftops, while MAUs can be located on roofs or in mechanical rooms, often connected to duct systems.

If you need more details or have specific questions, feel free to ask!