Fast Affordable Air recently completed a rooftop Heating and Cooling project at a home in North Las Vegas, Nevada. The photos show a Rheem packaged HVAC system positioned on the roof and connected to the home’s existing ductwork, electrical supply, gas line, and drainage system.
A packaged unit keeps most of the main heating and Air Conditioning parts inside one outdoor cabinet. Unlike a split system, which has equipment in two separate places, this design brings the major components together on the roof. It saves space around the home and keeps much of the operating noise outside the living area.
The project appears to have involved replacing an older rooftop system while reusing serviceable parts of the existing rooftop setup. A replacement like this requires more than placing a new Air Conditioner on the roof. Every connection must fit correctly and safely before the system can provide dependable Cooling.
Positioning the New Rheem HVAC Unit
The first photo shows the Rheem unit sitting on a metal rooftop support frame. This frame helps carry the equipment’s weight and keeps the cabinet properly positioned above the roof.
Correct placement matters. If a rooftop central AC unit is crooked, water may not drain correctly. The cabinet can also vibrate or place uneven pressure on its base. Before startup, an HVAC technician checks that the equipment is stable and that the service panels remain accessible for future AC maintenance.
The unit’s outdoor coil and top-mounted fan need open space around them. The fan pulls air through the coil and releases heat outdoors. Blocked airflow would make the Air Conditioner work harder, especially during a hot North Las Vegas afternoon.
Connecting the Rooftop Ductwork
The second and third photos show the large sheet-metal ducts attached to the side of the package unit. One duct carries cooled air into the home. The other brings warmer indoor air back to the equipment so it can be cooled again.
This repeating movement is called an airflow cycle. It is simply the path air follows through the system and the home.
The curved duct sections help guide air without making a sharp turn. Smoother turns can reduce resistance inside the duct. Air resistance is like trying to blow through a bent straw. The tighter the bend, the harder it is to move air through it.
The connection points also need to be fitted and sealed carefully. Gaps can allow conditioned air to escape onto the roof before it reaches the rooms below. Lost air wastes energy and can leave parts of the house warmer than others. Sound duct connections help the central Air Conditioning system deliver more of the air it produces.
Inspecting the Cabinet and Outdoor Coil
The fourth and fifth photos provide a clear view around the Rheem cabinet. The long protective panels contain openings that let outdoor air pass across the condenser coil.
The condenser coil is the part that releases heat removed from the home. Think of it as the area where the AC lets go of the heat it collected indoors. The fan on top helps carry that heat away.
The cabinet has room around it for airflow and technician access. This helps with future inspections, coil cleaning, electrical testing, and Air Conditioning repair. Keeping the coil clean is important because dust and debris can make it harder for the system to release heat.
Gas and Electrical Connections
The sixth photo shows a flexible metal gas connector and a yellow shutoff valve. This indicates that the packaged system appears to provide gas heating along with electric Cooling.
The shutoff valve allows the gas supply to be stopped when the heating section needs service. The flexible connector can handle small movements caused by normal equipment vibration. These parts must be installed securely and checked for leaks before the heating side of the unit is operated.
The flexible electrical conduit protects the wires supplying power to the HVAC equipment. A conduit is a protective tube for electrical wiring. On a rooftop, it helps shield those wires from sunlight, weather, and physical damage.
Checking the Condensate Drain
The seventh photo shows PVC piping connected near the base of the Rheem unit. This is the condensate drain system.
Condensate is water created when the AC removes moisture from indoor air. It is similar to the water that forms on the outside of a cold glass. That water must have a clear path away from the equipment.
The drain includes a raised vent section that helps the water move properly. Correct drainage protects the equipment and roof area from standing water. A blocked or poorly installed drain can cause water to back up, leak, or shut down the Cooling system.
Startup and Performance Checks
After the connections are completed, a rooftop replacement should be tested in both operating modes. During Cooling testing, the technician checks the thermostat, blower, compressor, outdoor fan, airflow, drainage, and temperature difference between the return and supply air.
The gas heating section also requires safety checks. These may include checking gas connections, burner operation, ignition, and the path used to carry combustion gases outdoors.
These startup checks help confirm that the new central Air Conditioner is working as a complete system rather than as a collection of separate parts.
Benefits of the Rheem Rooftop System
- More dependable comfort — New equipment can provide steadier Heating and Cooling when it is properly sized and installed.
- Better use of energy — A correctly installed system does not have to fight major duct leaks, blocked airflow, or poor drainage.
- More usable yard space — The main HVAC cabinet stays on the roof instead of taking up space beside the home.
- Quieter indoor operation — Much of the mechanical equipment remains outside the living area.
- Simpler service access — The major parts are located together inside one cabinet.
- Heating and Cooling from one unit — The packaged design can provide central Cooling during summer and heating when temperatures drop.
Fast Affordable Air is a licensed HVAC contractor serving North Las Vegas, Las Vegas, Henderson, and nearby Clark County communities. The company provides AC installation for rooftop and other central Air Conditioning systems and has experience working with Rheem Heating and Cooling equipment.