Rooftop Unit
A Rooftop Unit (RTU) is a self-contained HVAC system installed on the roof of commercial buildings to provide heating, ventilation, and air conditioning (HVAC). These units are widely used in offices, retail stores, warehouses, and industrial facilities due to their efficiency, space-saving design, and ease of maintenance.
How Rooftop Units Work
RTUs operate similarly to split-system HVAC units but are designed as packaged units, meaning all components—compressor, condenser, evaporator, and air handler—are housed in a single enclosure. These units draw in outside air, filter it, heat or cool it as needed, and distribute it through the building’s ductwork.
Key Components of an RTU
- Air Intake – Pulls in fresh outdoor air to maintain indoor air quality.
- Filters – Remove dust, pollen, and pollutants.
- Compressor & Condenser Coil – Essential for cooling by removing heat from the air.
- Evaporator Coil – Cools the air before distributing it inside.
- Heating Elements – Use gas burners, electric coils, or heat pumps to provide warmth.
- Blower Fan – Circulates conditioned air through the duct system.
Benefits of Rooftop Units
Space Efficiency
Since RTUs are placed on the roof, they free up valuable indoor space.
Easy Maintenance
Technicians can access the system without disrupting building operations.
Zoning Capabilities
RTUs can be configured to control different temperature zones efficiently.
Heat Pumps
Function as both cooling and heating systems. Energy-efficient and suitable for moderate climates.
Improved Air Quality
Advanced filtration and ventilation features help maintain a healthier indoor environment.
Common Applications
RTUs are ideal for:
- Retail stores and shopping centers
- Office buildings
- Hospitals and healthcare facilities
- Schools and universities
- Warehouses and industrial buildings
Conclusion
Rooftop Units are a practical HVAC solution for commercial buildings, offering reliable performance, energy efficiency, and easy maintenance. Proper installation and regular servicing are essential to ensure their longevity and optimal operation.