Types of RV Underfloor Air Conditioners
An RV underfloor air conditioner, or underfloor RV air conditioner, is a kind of air conditioning system designed to be installed in the floor of a vehicle. It offers cooled air to the interior of an RV without impeding the outside appearance of the vehicle. RV underfloor air conditioners are available in numerous types, including:
- Chilled Water Air Conditioner (CWAC): This is a type of air conditioner that uses chilled water to cool down the RV's indoor air. It consists of a chiller, air handler, and circulation pump. The chiller takes water from the air handler and cools it down. As the cooled water passes through the air handler's coils, a fan blows air over the coils, and the water cools down the air. The circulation pump moves the water from the chiller to the air handler and back. CWAC is considered an energy-efficient system because it uses water, which is a better heat conductor than air. It also allows for zone cooling since several air handlers can be used with one chiller, allowing different RV sections to be cooled independently.
- Absorption Air Conditioner: This type of underfloor RV air conditioner doesn't have a compressor. Instead, it uses heat to cool down. Absorption air conditioners use three fluids: water, hydrogen, and ammonia. All these fluids are pumped into different parts of the air conditioner. The fluids use a special chemical process to absorb heat and cool down. The heat from the RV is also absorbed by the fluid, then it is pumped out of the RV. Absorption air conditioners are quieter and use less energy than regular air conditioners. The drawback, however, is that they are more expensive and require more maintenance.
- Portable Air Conditioner: This is another type of rv under floor air conditioner. It is a freestanding air conditioning unit that can be placed anywhere. Portable air conditioners use fans, air compressors, and coils to remove heat and humidity from the air. They also draw fresh air from the room and cool it down before blowing it back into the room. Portable air conditioners are less expensive and easier to install than other types of underfloor RV air conditioners. The only downside is that they are noisier and need proper ventilation.
Specification and maintenance of RV underfloor air conditioner
Firstly, the air conditioner has some key specifications, such as:
- Type: The underfloor AC unit is usually a split system with a condenser unit and a fan coil unit. The condenser is placed under the vehicle, while the fan coil is hidden under the floor. It is also connected to the vehicle's electrical and ductwork systems.
- Cooling capacity: This is the amount of heat removed from the air. It is rated in British thermal units (BTUs). RV underfloor AC units typically have a cooling capacity that ranges from 9000 to 15000 BTUs. The higher the BTU rating, the better the unit is at cooling the space.
- Installation requirements: The unit needs professional installation. Installers cut a hole in the floor and reinforce it to hold the fan coil. They also need to connect the electrical and ductwork systems. Besides, the vehicle's floor shouldn't have many obstacles or be too crowded for installation.
- Controls: The RV underfloor air conditioner can have manual, digital, or programmable controls. A control panel is located on the fan coil unit for easy access. Some higher-tech models can be controlled remotely through a smartphone app.
- Ductwork: This is a key specification. The unit is connected to the RV's existing ductwork system. The ducts distribute cooled air throughout the RV, ensuring consistent cooling in every room.
Proper maintenance is critical to ensuring the rv underfloor air conditioner's long life and effective operation. Here are some tips for maintaining the RV underfloor air conditioner:
- Regular cleaning: Any debris, dust, or dirt that may accumulate on the condenser coils and fan coil should be removed. Air filters should be cleaned or replaced monthly to ensure optimal airflow and cooling efficiency.
- Inspecting ductwork: Ducts should be inspected for damage, holes, or loose connections. This ensures the cooled air isn't lost in the ductwork and maintains the RV underfloor air conditioner's effectiveness.
- Professional service: An annual inspection is required to ensure optimal performance. A professional can check refrigerant levels, electrical connections, and the overall system.
- Condensation drainage: The condensation drain should be checked to ensure proper function. Any blockages should be cleared to prevent water damage or mold growth.
- Sealing gaps: The underfloor air conditioner should be inspected for any gaps around it. These gaps can allow air leakage and reduce cooling efficiency. Sealing these gaps with foam or weather-stripping will help maintain a consistent temperature within the RV.
How to choose RV underfloor air conditioner
- Consider the size of the RV: The larger the RV, the more cooling power it will require to maintain a comfortable temperature. Larger RVs will need more underfloor air conditioners.
- Climate: The climate the RV will be used in should also be considered. Hotter climates require more powerful air conditioners. While RVs used in colder climates may not need as much cooling power. The climate can help provide insight into the type of air conditioner to choose for the RV.
- Quality and durability: Ensuring the underfloor air conditioner is of high quality and durable construction. This will help it withstand travel and road conditions. It will also ensure the air conditioner provides reliable service for years to come.
- Installation: Consider how easy or difficult the installation of the air conditioner will be. It may be preferable to choose an air conditioner that is easier to install. However, if the desired air conditioner is more complex to install, it may be worth hiring a professional to do the job.
- Power source: The power source the RV uses is also important. The air conditioner must be compatible with the RV's power source. Whether it is a standard electrical hookup or a generator.
- Noise level: Noise level is another important factor. Choosing an air conditioner that operates quietly will be more pleasant. It is also less likely to disturb the occupants or the neighbors of the RV.
- Energy efficiency: Energy efficiency is also important. Choosing an underfloor RV air conditioner that is energy efficient can help reduce power consumption. It can also help save money on energy costs in the long run.
- Budget: Setting a budget for the underfloor air conditioner and sticking to it is also important.
How to Replace RV Underfloor Air Conditioner
Replacing an underfloor air conditioner is a complex process that requires the right skills and tools. Below is a step-by-step guide on how to replace an RV underfloor air conditioner.
- 1. Turn off the power supply and remove the fuse connected to the old air conditioner. For safety, use electrical testers to ensure no power is running through the circuits.
- 2. Remove the old rv under floor air conditioner by using a screwdriver to loosen the bolts that hold it in place. After that, carefully pull out the old air conditioner and disconnect the ductwork and electrical connections attached to it.
- 3. Prepare to install the new air conditioner by ensuring the underfloor opening is clean and free of debris. Also, check if the new air conditioner's size matches the opening size. If it doesn't fit, make necessary adjustments.
- 4. Connect the ductwork and electrical lines to the new air conditioner. After that, install the new air conditioner in the underfloor opening by securing it with bolts and screws.
- 5. Turn on the power supply and the new air conditioner. Check if the new air conditioner is working properly by setting the desired temperature and airflow.
- 6. Lastly, test the airflow and temperature of the new air conditioner to ensure it is working efficiently.
Q and A
Q1: What is the significance of an RV underfloor air conditioner?
A1: An RV underfloor air conditioner, like other air conditioning systems, is essential for maintaining a comfortable indoor environment. Nonetheless, its installation is hidden underneath the RV, which helps to preserve the vehicle's aerodynamics, aesthetics, and internal space.
Q2: What distinguishes an RV underfloor air conditioner from other types?
A2: The RV underfloor AC is intended to be installed in the underfloor of the RV, thus taking up minimal space and minimizing the risk of damage or noise.
Q3: What should be considered when selecting an underfloor air conditioner for an RV?
A3: RV owners should consider factors like the cooling power of the air conditioner, energy efficiency, installation requirements, noise level, and maintenance requirements when selecting an underfloor rv air conditioner for their vehicles.
