Fast Affordable Air completed a commercial rooftop HVAC project near central Las Vegas. The exact business and property are being kept private. The photos show several stages of the work, including older rooftop equipment being opened and removed, ductwork being prepared, roof connections being sealed, and a new Trane package unit being installed.
A package unit is an Air Conditioner that keeps most of its main Heating and Cooling parts inside one outdoor cabinet. These systems are common on commercial roofs because they do not take up valuable space inside the building.
This was more involved than replacing one small part. The condition of the older equipment required careful disassembly and preparation before the replacement Cooling system could be connected safely.
Inspecting the Existing Rooftop HVAC Equipment
The project began with an inspection of the existing rooftop units, electrical connections, refrigerant lines, support bases, and sheet-metal ducts. Several cabinet panels were removed so the technicians could reach the internal components.
The photos show older blower assemblies, compressors, wiring, coils, and cabinet sections exposed during the work. A blower is the fan that pushes cooled air through the duct system and into the building. When the blower or its housing is worn or damaged, airflow may become weak or uneven.
Opening the equipment also allowed the technicians to see how each unit connected to the building. This step matters because a replacement Air Conditioner may not have supply and return openings in exactly the same positions as the older equipment.
Careful Removal of the Older Air Conditioning Equipment
The next stage involved taking apart and removing the equipment that was no longer being used. Large rooftop systems cannot simply be pulled away without preparation. Power must be disconnected, wiring must be secured, and refrigerant must be handled according to proper HVAC procedures.
Cabinet doors, fan panels, sheet metal, motors, and other components were separated during removal. This made it easier to reach the mounting points and duct connections without damaging the roof or nearby systems.
The technicians also worked around electrical conduit and other rooftop lines. Conduit is the protective metal tubing that holds electrical wires. Keeping it supported and away from sharp sheet-metal edges helps protect the wiring.
Preparing the Ductwork for the New System
After the older equipment was removed, the existing ducts had to be adapted for the replacement unit. The photos show new rectangular sheet-metal sections joining the rooftop openings to the HVAC equipment.
These pieces are called duct transitions. A duct transition changes the shape or size of a duct so two sections fit together correctly. It works much like an adapter used to connect two pipes of different sizes.
A well-built transition helps the central AC move air without unnecessary restriction. Poorly fitted ductwork can allow conditioned air to escape onto the roof. It may also create noise and make the blower work harder.
The finished duct connections were covered and sealed to reduce air leakage. Better duct sealing helps more of the cooled air reach the rooms served by the system instead of being lost before it enters the building.
Sealing the Rooftop Connections
White roofing material can be seen around the bases of the ductwork and equipment supports. This weatherproofing helps protect the roof where the HVAC system connects to the building.
A roof penetration is any opening made through a roof for ductwork, pipes, wiring, or equipment. These areas must be sealed carefully because even a small gap may allow rainwater to enter the building.
Las Vegas is known for dry weather, but rooftop equipment must still be prepared for wind, dust, strong sunlight, and sudden storms. Proper sealing also helps keep hot outdoor air from entering around the duct connections.
More details about this part of the process can be found in Fast Affordable Air’s guide to commercial rooftop AC installation and waterproof sealing.
Installing the Trane Rooftop Package Unit
The completed portion of the project shows a new Trane rooftop package unit sitting securely on its prepared base. The cabinet panels were opened during installation so the technicians could reach the blower section, electrical compartment, refrigerant system, and duct openings.
Before startup, an HVAC technician normally checks the electrical connections, airflow path, equipment support, drainage, cabinet panels, and thermostat operation. The Cooling system must also be tested while running to confirm that it starts, operates, and shuts down correctly.
The photos do not show the unit’s model number, cooling capacity, or efficiency rating clearly enough to confirm those details. The Trane brand is visible, but no specific performance figures should be claimed without the equipment data sheet and final test readings.
Fast Affordable Air has additional examples of rooftop HVAC installation and repair in Las Vegas and commercial rooftop Air Conditioning repair.
Benefits of Replacing Worn Rooftop Equipment
A properly installed commercial rooftop Air Conditioner can provide several practical benefits for a Las Vegas property.
- More dependable Cooling because worn components are replaced with a complete working system.
- Better airflow when the blower, duct transitions, and air openings are correctly matched.
- More even indoor temperatures because cooled air can move through the building with fewer leaks and restrictions.
- Possible energy savings when modern equipment replaces an older, inefficient system and is installed correctly.
- Less strain on the equipment because sealed ducts help the system deliver air where it belongs.
- Better roof protection through careful flashing and weather sealing around equipment bases and duct openings.
- Easier future service when access panels, wiring, and surrounding work areas remain organized and reachable.
Commercial Heating and Cooling equipment works under difficult conditions in Clark County. Strong sun, rooftop heat, dust, and long operating hours can wear down an older central Air Conditioning system. Correct equipment placement, tight duct connections, safe electrical work, and complete performance testing all play an important role in reliable operation.