
Buying a Dometic aircon caravan can be a daunting task, especially with the numerous options available in the market.
First and foremost, consider the size of the caravan, as it directly affects the aircon's performance. A larger caravan requires a more powerful aircon unit, which can increase the overall cost.
The Dometic aircon caravan comes in different types, including roof-mounted and dash-mounted aircon systems. Roof-mounted aircons are more popular due to their compact design and ease of installation.
A crucial factor to consider is the aircon's energy efficiency, as it directly impacts your fuel consumption and overall cost of ownership.
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Choosing the Right Aircon
Choosing the right aircon for your caravan is crucial to ensure effective cooling and optimal comfort during your outdoor travels.
Dometic understands the importance of selecting the appropriate size, and offers a range of RV air conditioners designed to meet the diverse needs of recreational vehicle owners.
Choosing the right size of air conditioner is key to optimal comfort, and Dometic's range is designed to meet the diverse needs of caravan owners.
Choosing the Right Size
Choosing the right size of air conditioner is crucial to ensure effective cooling and optimal comfort during your outdoor travels.
Dometic understands the importance of selecting the appropriate size, and offers a range of RV air conditioners designed to meet the diverse needs of recreational vehicle owners.
The size of the air conditioner you need depends on the size of your RV, with larger RVs requiring more powerful air conditioners.
A bigger RV typically requires a more powerful air conditioner to keep it cool, as it has more insulation and more space to cool.
The ideal size of air conditioner for your RV can be determined by the number of people it will be used by, with larger RVs accommodating more people.
If you have a smaller RV, a smaller air conditioner will be sufficient, but if you have a larger RV, you'll need a more powerful one.
Dometic offers a range of RV air conditioners designed to meet the diverse needs of recreational vehicle owners.
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Ducted Application
If you're looking to install a high-capacity aircon unit on your rooftop, consider a ducted application for a low-profile design.
A ducted application can be used for both high capacity low profile rooftop heat pumps, making it a versatile option for many homeowners.
This type of application is suitable for ducted or non-ducted systems, giving you flexibility in your installation choices.
For a seamless and efficient installation, a ducted application can be a great choice, especially for those with existing ductwork.
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Insulation
Insulation is key to keeping your caravan cool and your air conditioner running efficiently. A well-insulated caravan reduces the workload on your Dometic air conditioner, allowing it to maintain a comfortable environment.
Use reflective blinds or curtains to block the sun's heat from entering your vehicle. This simple trick can make a big difference in keeping your caravan cool.
Pre-cooling your caravan is another clever way to reduce the workload on your air conditioner. Close blinds, windows, and doors early in the day, and start the air conditioner before the hottest part of the day.
Rolling out your awning is also a great way to keep the hot sun off one side of the caravan. This helps prevent the living space from heating up too much.
By implementing these simple insulation tips, you can enjoy a cooler and more comfortable caravan experience.
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Types of Aircon
There are several types of aircon systems that can be used in a caravan. Window units are a popular choice due to their compact size and ease of installation.
They can be installed in a caravan window, providing a cost-effective solution for cooling a single room. Window units are often less expensive to purchase and maintain than other types of aircon systems.
Split systems, on the other hand, offer more flexibility and are often preferred for larger caravans. They consist of an outdoor unit and an indoor unit, which can be installed in a variety of locations.
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Universal Distribution Box (Non-Ducted)
The Universal Distribution Box (Non-Ducted) is a convenient option for aircon systems. It's perfect for homes or offices without existing ductwork.
This type of box is designed for non-ducted applications, which means it doesn't require any ducts to be installed. You can find it in the Dometic Universal Air Distribution Box (Non-Ducted Application).

The Air Distribution Box (ADB) comes with manual ceiling controls, making it easy to regulate the temperature in your space. You can adjust the airflow to suit your needs with just a few simple movements.
For colder climates, you can add a Dometic Non-ducted Heater Kit to your Universal Distribution Box. This kit is specifically designed for use with Penguin II models and features a wall thermostat for precise temperature control.
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Split
Split air conditioners offer a flexible cooling option for RVs and vans, consisting of two components: an indoor unit and an outdoor unit, connected by refrigerant lines.
They provide zoned cooling, allowing you to adjust the temperature independently in different areas of your RV or van.
With a split system, you can free up valuable interior space by placing the bulkier components outside the vehicle.
Dometic's split air conditioners incorporate noise-reduction features, ensuring quiet operation and minimal disturbance.
These units are designed to be energy-efficient, helping you save on power consumption and reduce your carbon footprint.
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Inverter
Inverter air conditioners are designed to provide reliable cooling performance, even in extreme temperatures. They work well in hot conditions, maintaining a stable environment inside your motorhome.
Dometic air conditioners, for example, are engineered for energy efficiency, which is a key feature of inverter technology. This means they support low power consumption, making them suitable for use at campsites.
Inverter air conditioners are available in various types, including under-bench and rooftop units. These options offer flexibility and convenience, allowing you to choose the one that best suits your needs.
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Single Zone Control Kit and Thermostat
The Dometic CT Single Zone Control Kit and Thermostat is a great example of a single zone control system. It's available in white and has a cool/furnace option.
This type of control kit is perfect for smaller spaces like RVs, apartments, or offices. It's easy to install and use.
The Dometic CT Single Zone Control Kit and Thermostat can be controlled using a thermostat, giving you precise temperature control. It's a simple yet effective solution for keeping your space at a comfortable temperature.
Rooftop
Rooftop air conditioners are a popular choice for RV owners, and for good reason. They provide efficient cooling performance while maximizing space utilization.
Dometic's rooftop air conditioners are designed to be mounted on the roof of your RV or van, offering a sleek and compact solution that doesn't sacrifice interior space. These units are perfect for outdoor enthusiasts who want to stay cool and comfortable on the go.
Some Dometic rooftop air conditioners, like the FreshJet 3 Series 13.5K, have a standard profile and can be used for ducted or non-ducted applications. Others, like the FreshJet 5 Series Mechanical 15K, have a low profile and are designed for ducted or non-ducted applications as well.
Dometic's rooftop air conditioners deliver powerful cooling capabilities, quickly bringing down the temperature inside your vehicle to a comfortable level. They're also engineered with advanced noise reduction technology, ensuring minimal disturbance while you relax or sleep.
Installing a Dometic rooftop air conditioner is a straightforward process, and the compact design makes it a convenient choice for RV owners.
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Cool RTX Range

The Cool RTX Range is a great option for those who value high performance and ease of use. These air conditioners are designed to maintain a stable and comfortable environment inside your motorhome, regardless of the outside temperature.
They're perfect for frequent travelers who often find themselves in areas with extremely high temperatures, as they can handle the heat with ease. In fact, they're engineered for energy efficiency, making them a great choice for campsites where power consumption is a concern.
One of the standout features of the Cool RTX Range is their ability to provide low power consumption, making them ideal for motorhomes. This is especially important for those who prioritize energy efficiency and want to minimize their impact on the environment.
By choosing a Cool RTX Range air conditioner, you can enjoy a comfortable indoor environment, no matter where your travels take you. Whether you're traveling to hot or mild climates, these air conditioners have got you covered.
Cooling and Performance
A Dometic aircon caravan is only as good as its cooling capacity, measured in BTUs, which determines how effectively it can cool the interior of your vehicle.
You'll want to choose a unit with the right cooling capacity for your caravan's size, as an undersized unit may struggle to maintain a comfortable temperature, while an oversized unit may consume excess energy.
Dometic air conditioners are engineered for energy efficiency, with options that support low power consumption at campsites, making them a great choice for RV owners who want to save on energy costs.
Their rooftop units, such as the FreshJet series, provide powerful cooling while preserving interior space, and are lightweight to boot.
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Climate Range
Understanding the climate conditions you plan to encounter will help you choose the right size of air conditioner to maintain a comfortable indoor environment.
If you frequently travel to areas with extremely high temperatures, you may need an air conditioner with a higher cooling capacity to handle the heat.
Dometic air conditioners are engineered for energy efficiency, which is essential for low power consumption at campsites.
A stable and comfortable environment inside your motorhome is crucial, regardless of the outside temperature, and Dometic air conditioners can provide that.
If you primarily travel in mild or cooler climates, a smaller-capacity air conditioner may be sufficient, saving you energy and money in the long run.
Cooling Capacity
Choosing the right cooling capacity for your RV is crucial to maintaining a comfortable temperature. This is measured in BTUs (British Thermal Units) and determines how effectively the unit can cool your vehicle.
A unit with insufficient cooling power may struggle to keep up with the heat, leaving you feeling hot and sweaty. This is especially true for areas with extremely high temperatures.
The climate and temperature range of the regions you plan to travel in are important factors to consider. If you frequently travel to areas with high temperatures, you may need an air conditioner with a higher cooling capacity to handle the heat.
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A smaller-capacity air conditioner may be sufficient for areas with mild or cooler climates. This can help you save energy and reduce your carbon footprint.
The right cooling capacity can make all the difference in your RV's performance. It's essential to choose an air conditioner that's designed for your vehicle's size and the climate you'll be traveling in.
Noise Level
Noise levels can be a significant concern in RVs, especially if you value a peaceful environment.
Dometic air conditioners are equipped with noise reduction technology, ensuring minimal disturbance while you relax or sleep inside your vehicle.
These units operate quietly, allowing you to enjoy conversations without interruption.
Additional Features and Options
Dometic's RV air conditioners come with a range of additional features that can enhance your comfort and convenience.
Some of these features include remote control operation, which allows you to adjust the temperature from anywhere inside your caravan.
Programmable timers are also available, enabling you to schedule cooling sessions in advance and save energy.
Adjustable airflow direction is another feature that can be useful in different situations.
Air purification systems can also be a valuable addition, especially for people with allergies or respiratory issues.
Additional Features
Dometic's RV air conditioners come with a range of additional features that can enhance your comfort and convenience.
Remote control operation is one of the features that can be a game-changer for RV owners, allowing you to adjust the temperature and airflow from the comfort of your own space.
Programmable timers can help you save energy and stay comfortable by automatically turning the air conditioner on and off at set times.
Adjustable airflow direction is another feature that can be super useful, especially if you have a large RV or want to direct the airflow to specific areas.
Air purification systems can also be a great addition, helping to remove allergens and odors from the air and creating a healthier environment inside your RV.
Smart Start for Penguin II
The Smart Start for Penguin II is a game-changer for those who want to stay cool and efficient. It's designed specifically for Dometic SmartStart for Penguin II Electronic Air Conditioner Models, which are perfect for high efficiency low profile rooftop mechanical air conditioners.
This system is ideal for both ducted and non-ducted applications, making it a versatile option for many homeowners.
Coleman to Penguin II Conversion Kit
If you're looking to upgrade your Coleman air conditioner, the Dometic Air Conditioner Conversion Kit is a great option. This kit allows you to convert your Coleman air conditioner to a Penguin II, giving you more flexibility and potentially better performance.
The Dometic Air Conditioner Conversion Kit specifically supports the Coleman to Penguin II conversion, making it a straightforward process for those who want to make the switch.
By using this kit, you can take advantage of the Penguin II's features and improve your overall cooling experience.
Thermostat White
If you're looking for a thermostat in white, you've got options. The Dometic CT Single Zone Control Kit and Thermostat comes in a sleek white finish, designed to match your home's decor.
The Dometic CT Single Zone Control Kit Cool/Furnace – White is a great choice for single-zone cooling and heating systems. It's a complete kit that includes a thermostat and control board.
The Dometic CCCII Thermostat, White is another option, but it requires a separate control board to be purchased separately. This multi-zone thermostat is a good choice for larger homes with multiple heating and cooling zones.
Non-Ducted Heater Kit

The Non-Ducted Heater Kit is a great option for those who want to stay warm and cozy without the hassle of ductwork. It's designed for use with specific models like the Penguin II.
You can purchase a Heater Kit separately, which is compatible with the Penguin II models. This kit is meant to be used with a wall thermostat for optimal control.
The Air Distribution Box (ADB) is a key component of the Non-Ducted Heater Kit, and it's specifically designed for use with Penguin II models. It's a crucial part of the system, making sure warm air is distributed evenly throughout your space.
The Non-Ducted Heater Kit is a convenient and efficient way to heat your home without the need for ducts. It's a great solution for those who want to stay warm and comfortable without the hassle of ductwork.
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Installation and Maintenance
To ensure your Dometic aircon caravan operates at its best, installation and maintenance are crucial. Regular maintenance from a Dometic Service Centre will provide efficient and trouble-free cooling.
A well-maintained air conditioner will extend its life, so it's essential to service the heat exchanger/condenser annually by a Dometic air conditioning specialist. This involves blowing out the condenser fins to remove dust, dirt, and other items that may block air flow.
Here are some key maintenance tasks to perform:
- Check the gasket between the roof air conditioner and the caravan roof annually for any cracks or damage that could cause air or water leaks.
- Ensure the fastening bolts are tightened to the manufacturer's recommended torque (2.5 Nm ± 0.3 Nm) and adjust them if necessary for a secure fit.
Remember, handling refrigerants without proper training is dangerous, so always seek professional help for these tasks.
RV Layout
Your RV's layout is a crucial factor in determining the right air conditioner size. Larger RVs with multiple rooms or compartments require air conditioners with higher cooling capacities.
Consider the square footage of your RV, as this will help you determine the appropriate air conditioner size. Smaller RVs or vans may only need a smaller-capacity air conditioner.
The layout of your RV can greatly impact the cooling performance of your air conditioner. A RV with a lot of windows or skylights may require a more powerful air conditioner to compensate for the heat gain.
Under-Bench
Under-Bench Air Conditioners offer a compact design that seamlessly integrates into your RV's interior without compromising on cooling capacity.
Dometic's under-bench air conditioners can be installed in various locations, such as under the bench or in a storage compartment, making them virtually invisible.
These units are designed to operate quietly, creating a peaceful and comfortable environment inside your RV.
Efficient cooling performance is delivered by Dometic's under-bench air conditioners, maintaining an ideal temperature inside your vehicle even on hot summer days.
The flexible installation options provided by Dometic ensure a customized fit for different RV layouts and configurations.
Maintenance by Service Centre
Regular maintenance is key to keeping your caravan roof air conditioner running smoothly. A well-maintained air conditioner will provide efficient and trouble-free cooling, extending its lifespan.
You should have a Dometic service centre perform any maintenance beyond regular cleaning. This includes handling refrigerants or other critical system components. Handling refrigerants without proper training is dangerous, so always seek professional help for these tasks.
A Dometic service workshop can perform a variety of tasks, such as servicing the heat exchanger/condenser, which is a critical component of the air conditioner. This involves blowing out the condenser fins to remove dust, dirt, and other items that may block air flow. It's a good idea to have the condenser serviced annually to prevent issues and maintain efficiency.
Here are some tasks that a Dometic service centre can perform:
- Service the heat exchanger/condenser
- Check seals and fastening bolts
- Check condensation drainage channels
- Clean the internal air filters
By performing regular maintenance, you can ensure your caravan roof air conditioner is running efficiently and effectively, keeping you cool and comfortable on your travels.
Models and Brands
There are several models and brands of domestic aircon caravans available in the market.
Dometic is a well-known brand that offers a range of caravan air conditioning systems.
Their models, such as the Dometic Fresh and the Dometic Robin, are popular choices among caravan owners due to their compact design and high efficiency.
3 Series 15K

The 3 Series 15K from Dometic is a reliable choice for RV air conditioning. It's a 15,000 BTU rooftop air conditioner, perfect for keeping your RV cool on hot days.
One of the great things about this model is its standard profile design, which allows for easy installation on most RVs. You can also choose between ducted or non-ducted application, giving you flexibility in your setup.
This model is part of Dometic's 3 Series lineup, which offers high-quality air conditioners specifically designed for recreational vehicles. The 3 Series 15K is a popular choice among RV owners who want a reliable and efficient air conditioning system.
FreshWell Fwx4
The FreshWell FWX4 is a versatile under-bench air conditioner designed for vehicles up to 8 meters in length.
It comes with a flexible hose for A/C systems, with a diameter of 60 mm and a length of 10 meters.
This air conditioner is designed to provide a comfortable cooling solution for vehicle owners who need a reliable and efficient way to stay cool on the go.
1500M

The 1500M model is a specific variant of the Dometic FreshJet series of roof air conditioners.
This model is powered by a 1500 W unit, which is a significant amount of energy.
The 1500M model features manual controls, giving users a hands-on approach to adjusting the air conditioner's settings.
ADBD
The Dometic FreshJet FJX ADBD boasts electronic controls, which make it easy to manage the air distribution.
This model features an air distribution box, which helps to circulate air efficiently.
LED lights are also part of the ADBD package, providing a convenient and energy-efficient lighting solution.
RTX CCBL 12
The RTX CCBL 12 is a wire harness kit designed for specific Dometic models.
It's meant for the RTX 1000 12V and RTX 2000 12V air conditioners.
The kit has a length of 8 meters.
It's a practical solution for those who need a reliable wire harness.
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FJX7 2600 Roof
The Dometic FreshJet FJX7 2600 Roof Air Conditioner is one of the coolest Dometic has ever produced.
This 2600W roof air conditioner is a significant upgrade in terms of power, making it an ideal choice for those who need a strong cooling system.
Dometic is a well-known and trusted brand in the RV and campervan industry, and their FreshJet series is particularly popular for its reliability and performance.
Freshlight 2200
The Freshlight 2200 is a notable model that stands out for its innovative design. It's the world's first roof air conditioner with an integrated rooflight.
This unique feature combines two functions into one, providing both cooling and natural light.
Troubleshooting and Support
If your caravan aircon is not cooling properly, check the thermostat setting, as it should be set between 16°C and 20°C to ensure optimal cooling performance.
A faulty compressor or fan can also cause the aircon to malfunction, so it's essential to inspect and replace these parts if necessary.
The aircon's drain hose should be checked regularly to ensure it's not clogged, as this can cause water to leak into the caravan.
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Caravan aircon systems often require regular filter cleaning or replacement to maintain airflow and prevent bacterial growth.
If you're experiencing issues with the aircon's remote control, try resetting it by pressing and holding the power button for 10 seconds.
In some cases, a faulty relay or contactor can cause the aircon to malfunction, so it's crucial to inspect and replace these components if necessary.
The caravan's electrical system should be checked to ensure it's capable of handling the aircon's power requirements, as a faulty electrical system can cause the aircon to malfunction.
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Frequently Asked Questions
Should I leave my RV air conditioner on all the time?
Leaving your RV air conditioner on continuously can be energy-efficient, but it depends on the compressor's components and fan motor's lifespan
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