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Types of Roof Electric Air Conditioner

Electric roof air conditioners are often referred to as electric roof AC units. These air conditioners come in different types. The following are some of the most popular types of roof electric air conditioner:

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• Electric Rooftop Air Conditioner:

  Electric rooftop air conditioners are often referred to as electric RTU AC units. They are self-contained AC units installed on the rooftop. Electric RTU units are used to cool buildings. These air conditioners have a heating coil that supplies warm air during cold seasons. Electric RTU air conditioners are often used in commercial buildings. These systems are also controlled using a thermostat control panel.

• Electric Kinetic Air Conditioner:

  Electric kinetic roof air conditioners are known for their energy efficiency. These air conditioners reduce the energy required to cool a building by up to 25%. Electric kinetic air conditioners also have sensors that monitor the environmental conditions around the building. The sensors adjust the cooling levels automatically to optimize comfort and reduce energy consumption.

• Packaged Rooftop Units (RTU):

  Packaged RTU air conditioners are HVAC systems that are packaged on the roof. These units are designed to provide heating and cooling in a building. The rooftop units contain all the necessary components for heating and cooling. This includes compressors, evaporators, condensers, and fans. Since these units are installed on the roof, they do not occupy any space on the ground. Packed RTU units can also be connected to ductwork for air distribution.

• Electric Central Air Conditioner:

  These are air conditioning systems that are powered by electricity and are designed to cool large buildings. These units are installed on the roof. The roof central air conditioners have cooling coils that allow the flow of refrigerant to cool the air. These units also have blower fans that circulate air through the system and ductwork.

• Electric Chillers:

  Electric chillers are used to cool large buildings by cooling water and distributing it through the building via the ductwork. Chillers are installed on the roof, which reduces the noise level and maximizes space in the building. Electric chillers also have cooling towers that work with the chillers to provide additional cooling by dissipating heat.

• Variable Refrigerant Flow Systems (VRF):

  Electric variable refrigerant flow systems are air conditioners that use electric power and are designed to provide cooling and heating to large buildings. VRF systems are installed on the roof and can be controlled individually in different zones of the building.

• Energy Recovery Ventilators (ERV):

  These are roof-installed electric air conditioners that are designed to provide ventilation while recovering energy to improve comfort in large buildings. These units work in conjunction with other cooling systems by pre-cooling or pre-heating the incoming air. The incoming air is cooled or heated using the exhausted air from the building.

Specification and maintenance of roof electric air conditioner

Manufacturers of electric roof-top air conditioners provide detailed specifications for each unit to help business buyers select suitable models for their customers' needs. The spec sheet contains information such as:

• Cooling capacity: This is the amount of heat the electric AC can remove from the interior space per hour. It's measured in BTUs or tons. One ton equals 12,000 BTUs. The cooling capacity affects power consumption; hence, electric ACs with higher cooling capacities have higher wattage.
• Airflow: This is the volume of air that the roof electric AC unit can circulate within the RV or truck. It's measured in cubic feet per minute (CFM). Higher CFM ratings mean the electric air conditioner can distribute air more widely and effectively.
• Weight: Electric rooftop air conditioners are heavy, weighing anywhere between 200 and 400 lbs. The weight is a crucial consideration when installing the unit on top of the vehicle. Business buyers must ensure the vehicle's roof can support the weight of the air conditioner.
• Dimensions: The height of the electric AC is a critical specification. Top-mounted air conditioners increase the vehicle's height, which can be a problem when driving under low bridges or through underground parking. The side length and width determine how much space the electric AC will occupy on the roof.
• Control type: Roof electric air conditioners have manual or electronic controls. Some advanced models even have smart controls that allow users to set the desired temperature and allow the system to maintain it automatically.
• Voltage and frequency: The electrical requirements of the air conditioner are also specified. Common voltages for commercial rooftop electric ACs are 208V, 230V, 400V, and 460V. The frequency is always 50Hz or 60Hz.

The right roof electric air conditioner will have specifications that match the vehicle's electrical system. For instance, the vehicle must support the air conditioner's voltage requirements.

Maintaining roof electric air conditioners is crucial for their longevity and optimal performance. For DIY maintenance, users should refer to the user manual for instructions on how to perform basic maintenance tasks.

• Clean or replace the air filters: Air filters improve the quality of air circulated by the electric roof-top air conditioner. Dirty filters clog up and restrict airflow, forcing the AC to work extra hard, which increases energy consumption. It's recommended to inspect the filters weekly and clean them to enhance the air conditioner's efficiency.
• Clean the condenser coils: Users should check the condenser coils for any dust and debris and wipe them clean. Condenser coils are located in the outside unit of the air conditioner. Dirty coils restrict the system's ability to release heat.
• Inspect the fan blades: Electric rooftop air conditioners have fan blades that help with forced air circulation. Users should periodically inspect the blades for any dirt and wipe them clean.

These maintenance activities can help improve the electric roof air conditioner’s cooling efficiency and help it last longer.

How to choose roof electric air conditioner

Before buying electric rooftop AC units, it's important to know how to choose the right one. Here are some tips for choosing electric rooftop air conditioners:

• Cooling Capacity

  BTUs, or British Thermal Units, measure the cooling capacity of a rooftop AC unit. When choosing a system, consider the size of the vehicle and the environmental conditions to ensure the cooling capacity matches the demand.

• Energy Efficiency

  Seek units with a high EER (Energy Efficiency Ratio) or SEER (Seasonal Energy Efficiency Ratio) rating. This indicates that the system uses less energy to provide cooling, which can save money over time.

• Voltage and Power Consumption

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  Consider the system's power usage and ensure it fits within the vehicle's available electrical capacity. Higher voltage systems provide more efficient operation and better performance.

• Installation and Ductwork

  Some units are easy to install and don't require ductwork, while others need professional installation and ductwork. Consider how much one is willing to spend on installation and whether one prefers a system that is easy to install and maintain.

• Noise Level

  Some rooftop AC units can be pretty noisy, which can be bothersome. Consider the unit's noise level and look for features that reduce noise or ensure quiet operation.

• Durability and Warranty

  Consider the material used to make the air conditioner. Is it a long-lasting material? Also, consider the warranty period to know how long the manufacturer has your back.

How to DIY and Replace Roof Electric Air Conditioner

Replacing a roof-top electric air conditioner can be a challenging task. However, with the right tools, parts, and technical knowledge, it can be done. Before commencing, make sure to have the following tools:

• A socket set
• Antenna wrench
• Phillips screwdriver
• Flathead screwdriver
• Torx screwdriver
• Nut driver

Additionally, it is important to read the manufacturer’s manual for specific instructions regarding the particular model to be replaced. Here is a step-by-step guide:

• 1. First, ensure that the power supply to the existing air conditioner is disconnected.
• 2. Use a socket set and an antenna wrench to remove the bolts that secure the old air conditioner.
• 3. Then, use a Phillips screwdriver, flathead screwdriver, Torx screwdriver, and nut driver to disconnect the existing air conditioner from the mounting hardware.
• 4. Carefully lift the old air conditioner out of the mounting hardware using a suitable lifting technique or with the help of another person.
• 5. Place the new air conditioner on the mounting hardware and ensure that it is properly aligned.
• 6. Then, reconnect the new air conditioner to the mounting hardware using the previously removed screws and nuts.
• 7. After that, use a socket set and antenna wrench to install the bolts that secure the new air conditioner to the roof.
• 8. Finally, reconnect the power supply and check for any leaks or unusual noises.

Q and A

Q1. How is a roof electric air conditioner different from other types of air conditioners?

A1. A roof electric air conditioner is installed on the roof of a building or vehicle. It is designed to cool large spaces quickly. These air conditioners are ideal for places where installing a traditional air conditioner is difficult or where a more portable cooling solution is needed.

Q2. Can a roof electric air conditioner be used for heating?

A2. Yes, some roof electric air conditioners have a heating mode. They can be used as heat pumps to provide heating during colder months. This can be a valuable feature for businesses that experience temperature variations throughout the year.

Q3. What is the maintenance requirement for roof-mounted air conditioners?

A3. Roof-mounted air conditioners require regular maintenance such as filter cleaning, coil cleaning, and check-ups of the fans and motors. They also need periodic inspections to ensure they are in good condition and not leaking. This will ensure they operate efficiently and have a longer lifespan.

Q4. Do these air conditioners have variable speed controls?

A4. Yes, roof electric air conditioners have variable speed controls. This feature allows for better ventilation and humidity control. It also increases energy efficiency by using the fans at appropriate speeds as required.

Q5. Are roof electric air conditioners noisy?

A5. Roof electric air conditioners can be noisy because of the fans and compressors. However, there are also available electric roof air conditioners that are designed to operate quietly. The level of noise is usually indicated by the manufacturer.

We have been traveling around the past four years in our Campervan with a MaxxAir Maxxfan Delux installed on our Campervan roof that has met most of our needs in circulating the air, but when it’s too hot it just doesn’t cut it. We’ve tried at least three different portable air conditioners that were either too large taking up floor space and/or they just didn’t meet our needs.

Over the years we have looked at installing a top mounted air conditioner but until recently hadn’t taken the plunged into buying one or installing it. After reviewing several top mounted air conditioners we decided to give OutEquipPro.com a try. We chose their “RV Air Conditioner, 12V BTU Top Mounted Heating and Cooling Parking Air Conditioner Set for RVs, Trucks, Vans, Campers,” and also for their reasonable price.

We liked the DIY aspect of their product. After ordering the air conditioner it arrived within three business days. It was well packaged and came with all the necessary parts for installation. The only thing it didn’t have was well defined instructions for the actual installation. Their website had some information but we would suggest to them to include simple instructions for the consumer. We say this because after our installation of our air conditioner we received an from the company with actual instructions as to how to install the weather/support gasket which would have been great to have had before we installed their product. However, the installation process is pretty straight forward and common sense should make the installation fairly easy.

Installation of our OutEquip air conditioner was installed in place of our MaxxAir 14” X 14” opening and the MaxxAir was moved to another location. Although our ceiling was finished, we had no issues installing the air conditioner in the opening. The wiring provided with the air conditioner is 6 AWG. Installation in our case required an extension of the 6 AWG wire and another hole for the wire for passage into the cab of the vehicle to our battery banks for easy attachment.

We found the OutEquip air conditioner to be quiet. We mounted it in the front of our Campervan where we spend most of our time and testing of the airflow did make its way to the back of our vehicle. The cooling and heating functions worked as designed. The product comes with a remote control and operating instructions for the OutEquip air conditioner. When it comes to cooling, it ultimately comes down to how well your outfit is insulated. Our testing is still ongoing but so far it looks promising.

We do have to say all our questions to OutEquipPro have been answered promptly. They seem to stand behind their products giving you a sense of commitment to customer satisfaction. So far we haven’t been disappointed.

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