What does the abbreviation "RTU" stand for in HVAC terminology?

In HVAC terminology, "RTU" stands for Rooftop Unit. Rooftop units are packaged air conditioning systems that are typically installed on the roofs of commercial buildings. They are designed to house multiple components of the heating, ventilation, and air conditioning system in one unit, which saves space and simplifies installation.

Rooftop units are commonly used in commercial applications because they can provide both heating and cooling from a single unit. They often include features such as fans, compressors, and heat exchangers, and they utilize ductwork to distribute conditioned air throughout the building. The common installation on rooftops allows for more effective use of space within a building, making them a popular choice for many architects and building owners.

Understanding the purpose and functionality of rooftop units is crucial for HVAC professionals, as they play a significant role in the overall climate control of many commercial facilities.