In a place like Melbourne, where air conditioners during summer and heating systems during winter are a must, maintaining two different systems becomes a pain for property owners.
If you want year-round comfort without filling your home with two different heating and cooling systems, you must know what is a reverse cycle air conditioner and how does reverse cycle air conditioning works.
In this article, we will provide you with all the details about reverse-cycle air conditioning systems, such as the basic working principle, its components, how does it works in cooling and heating mode, its benefits, its limitations, and how you can achieve year-round comfort using reverse-cycle air conditioning.
Surrey Air has 45 years of experience in providing cooling and heating services in Melbourne. We pride ourselves on staying updated with the latest trends and tech in the heating and cooling industry. We offer premium installation and maintenance services for reverse-cycle air conditioning systems.
What Is Reverse Cycle Air Conditioning?
Reverse cycle air conditioning is a versatile system that provides heating and cooling by reversing the refrigerant flow. In this system, the refrigerant works as a heat pump, transferring heat from one place to another rather than being heated or cooled directly.
How Does Reverse Cycle Air Conditioning System Work? The Basic Principle:
The reverse cycle air conditioning system uses the two basic scientific principles of thermodynamics and heat pump (exchange) technology. The system has a specialised valve that allows it to switch between the cooling and heating modes.
The Key Components Of Reverse Cycle Air Conditioning Systems
The dual functionality of the reverse cycle air conditioning system depends on its components. The key components in the system include:
- Indoor unit.
- Evaporator coil.
- Fan/ blower.
- Air filters.
2. Outdoor unit.
- Compressor.
- Condenser coil.
- Fan.
3. Refrigerant.
4. Reversing valve.
5. Expansion valve.
6. Piping and refrigerant lines.
7. Drainage system.
8. Thermostat.
9. Optional components like smart controls, inverter, air purifier, etc.
How Does Reverse Cycle Air Conditioning Work? The Cooling And Heating Systems!
Let us explore in detail how does reverse conditioning system work to fulfill its requirements of dual functionality, that is, cooling and heating.
Cooling Mode:
The reverse air conditioning system follows the following steps during the cooling process.
Intake Hot Air:
The first step in the cooling mode starts by taking the hot air from the indoor spaces and drawing it out of the home.
Refrigerant Absorption:
The liquid refrigerant inside the evaporator coil absorbs the heat from indoor air and converts it into a gaseous state.
Distribution Of Cold Air:
The cold air moves back inside the home after losing the heat to the liquified refrigerant in the evaporator coil. The fan in the cooling system ensures even distribution of the cold air.
Compression And Heat Release:
The gaseous refrigerant moves to the compressor, where it is compressed to increase the temperature and pressure. The gaseous refrigerant loses its absorbed heat and converts back into the liquid state.
Cycle Repetition:
The cooled liquid air returns to the evaporator coil, where it again absorbs heat from the hot indoor air, converts to a gaseous state, and moves to the outdoor unit for compression and heat release. The cycle repeats to achieve the desired temperature and maintain a comfortable indoor environment.
Heating Mode:
The heating mode is also known as reverse cycling hence giving the name of reverse cycle air conditioning system. The heating mode in the reverse cycle air conditioner includes the following steps:
Reversing Valve Activation:
Converting the cooling mode of the air conditioner to its heating mode requires switching a valve- the reverse valve, which changes the direction of refrigerant flow.
Heat Absorption From Outdoors:
The liquid refrigerant flows to an external coil, which absorbs outdoor air heat.
Vaporisation And Compression:
After absorbing the heat from outside, the refrigerant vaporises into the gaseous state. This refrigerant then moves into the compression chamber. Here, is gains more heat by compression. This compression step is the main heating step, where refrigerant increases its heat content without direct heating.
Heat Distribution:
The hot gaseous refrigerant then moves into the indoor unit, from where it gives off its heat to the cold indoor air, and a fan distributes the air throughout the indoor spaces.
Return Cycle:
The refrigerant returns to the liquid state after losing its heat content and travels back to the external coil to absorb heat from the outside. The repeat cycle maintains a cosy indoor environment during the cold Melbourne season.
Common Types Of Reverse Cycle Air Conditioning Systems
Considering the ease of use, the following common types of reverse-cycle air conditioning systems are available in the market.
How Reverse Cycle Air Conditioners Bring Year-round Comfort?
As the reverse cycle air conditioners perform dual heating and cooling functions with a single unit, they bring year-round comfort. You can use them during scorching heat and chilling winters to stay comfortable in your home or office.
Switching between a single system’s heating and cooling modes makes temperature maintenance more uncomplicated for the system’s owners. It eases the system owners from the stress and costs of maintaining separate heating and cooling systems while saving from temperature extremes.
Benefits Of Reverse Cycle Air Conditioning
1. Dual Functionality:
The most premium benefit of reverse cycle air conditioning is its dual functionality feature. It offers heating and cooling functionalities, allowing users to stay comfortable throughout the year!
2. Highest Energy Efficiency:
Reverse cycle air conditioning offers the highest energy efficiency among heating and cooling systems. It does not consume energy for air conditioning using gas or electricity but instead absorbs heat or cold from the environment. The technology drops energy consumption by as much as up to 60%.
3. Reduced Environmental Impact:
As the reverse cycle air conditioners don’t consume much energy, it significantly reduces green house effect. It doesn’t pose any harm to the environment as compared with other heating and cooling systems.
The system also uses advanced refrigerant, which has minimal environmental impact.
4. Dehumidification:
The reverse cycle air conditioner controls the humidity levels while maintaining the desired temperature. This feature is extremely useful in areas with high humidity levels during summer. Reduced humidity levels add more comfort to the indoor living environment.
5. Improved Safety:
Reverse-cycle air conditioner systems provide maximum safety for their users. There are no risks of harmful gas production, unlike gas heaters. They also have no electrical hazards due to high energy consumption, as in electric systems. Reduced fuel requirements make reverse-cycle air conditioners a safer option.
6. Improved indoor Air Quality:
The reverse cycle air conditioners have filters in their unit, which allows them to filter out dust, allergens, and pollutants, thus improving the indoor air. This feature positively impacts the health of occupants, especially those suffering from allergies or other respiratory issues.
7. Zoning Capabilities:
Like most advanced heating and cooling systems, the reverse cycle air conditioning system has zoning capabilities. This feature enables selective heating and cooling in the desired area, saving energy and operational costs.
8. Cost Effective:
Depending on the type and size of the reverse cycle air conditioning system, the unit prices of this cooling system are higher than those of traditional cooling systems. However, in the long run, reverse-cycle air conditioners are very cost-effective. They consume less energy and save money on energy bills.
Reverse-cycle air conditioners also offer convenience as a single system performs heating and cooling functions.
Conclusion:
Air conditioners work to provide cool air for a comfortable indoor environment. However, one question arises: How does reverse cycle air conditioning work to allow for both cool and hot air? It uses the basic principle of heat exchange, where the refrigerant absorbs heat or cold from the surrounding air and transfers it to the indoor spaces.
Users can switch between cooling and heating modes using a reverse valve within the system, which opens reverse refrigerant flow in the heating mode. This way, users get year-round comfort from using one system.
Reverse cycle air conditioners also have several other benefits than dual functionality, which include energy efficiency, dehumidification properties, zoning capabilities, improved indoor air quality and safety and cost savings.
