Variable Refrigerant Flow or VRF Systems

What is Variable Refrigerant Flow or VRF Systems?

Variable Refrigerant Flow (VRF) systems are similar to the multi-split systems which connect one outdoor unit to several indoor units. The cooling and heating requirements of a room may vary from the heat emitting from lights or home appliances and the position of the sun. The combined effects of internal and external factors will influence the requirements for heating and cooling those rooms. VRF systems use heat pumps or heat recovery systems to provide powerful heating and cooling without the use of air ducts. VRF systems distribute excess heat to the rooms that require cooling to those that may require heating. VRF systems continually adjust the flow of refrigerant to each indoor evaporator without responding to only one master controller. 

Find the right model to cover your temperature needs by choosing from our major brands including ActronAir, Carrier, Mitsubishi Electric, Gree, Braemar, and Breezair. 

If you would like to explore a different approach to keeping your home cool, feel free to browse our range of Split Systems, Multi-Split Systems, and Evaporative Air Conditioning.

Why Would I Need A Variable Refrigerant Flow System?

A variable refrigerant flow system allows users to set the ambient temperature of each room as to what they desired and the system will automatically adjust the refrigerant flow to suit the requirement. VRF systems bring rooms to the desired temperature extremely quickly and they will maintain the temperature at a comfortable point. The technology offers excellent dehumidification performance for optimal temperature regardless of outside conditions. In any area of a house, it will always be exactly the right temperature and humidity, ensuring total comfort for householders. VRF systems are capable of simultaneous cooling and heating. Each indoor unit can be controlled by a programmable thermostat. Most VRF manufacturers offer a centralised control option, which enables the user to monitor and control their entire system from a single location or via the internet.


Energy Efficient
Variable Refrigerant Flow systems are extremely energy efficient as they run less frequently and at a lower capacity as they provide the exact amount of cooling needed for each condition.

Consistent Comfort
Variable Refrigerant Flow systems detect the cooling requirement for each area and send the exact amount of refrigerant required to keep your rooms comfortable. The room areas are consistently maintained to a suitable temperature and hot or cold spots are diminished.

Quiet Operator
Variable Refrigerant Flow systems are quieter than traditional split systems as the noisy condensing unit is generally situated outdoors.

Is a Variable Refrigerant Flow System right for me?

There are numerous benefits of choosing a variable refrigerant flow system such as it is engineered to run when it is required and under partial load conditions which reduce the risk of a system breakdown. If there is a breakdown it will continue to work without affecting the other counterparts.

All Major Brands

Actronair Air Conditioning
Carrier air conditioning
Mitsubishi Electric Air Conditioning
Gree air conditioners
BRAEMAR Air Conditioning
Breezair Air Conditioning

Types of Indoor Units

Finding the right type of air conditioning unit is essential to make your living spaces more comfortable. Investing in the right air conditioner for your home is one of the biggest investments you either make or break. Most Adelaide homes have air conditioning which is one of the most important parts of our everyday life as we rely on them as we experience extreme heat during summer and cold weather days in winter. Sharpe Energy Hub will save you money in the long term as we offer a lifetime efficiency of serving your home. Browse our range of indoor air conditioning units to suit your home.


Ceiling Cassette
Ceiling Cassettes air conditioners are ideal for small spaces as it doesn’t take up needed space as it is installed in the ceiling. It fits into any type of design plan as it is small. Ceiling Cassettes are more powerful than other air conditioning units. The four way airflow will distribute air to every corner of the room ensuring the room temperature stays at a consistent temperature. It allows you to adjust the thermostat so that the unit reduces its power usage.

Wall Mounted
Wall mounted air conditioners are ideal for small living areas that don’t have enough floor space. The wall mounted units can exhale cool or warm air around the room. Most wall mounted air conditioners come with an air filtration system that removes allergens, mould, bacteria, odours, and dust from the air which highly benefits people with allergies or asthma.

Floor Standing
Floor standing air conditioners are ideal for rooms that lack space on the walls. They are suitable for heating and cooling a range of size rooms such as lounge rooms or medium sized bedrooms. Floor mounted systems can be installed low above the floor or very close to it including a cornered room. If the air conditioner is for an elderly person it is ideal to install a floor standing unit to allow them to reach the unit easier, comfortably, and safer as it is reached within eye levels.

Ceiling Suspended
Ceiling suspended air conditioners are ideal for large open room spaces as they are fitted onto the ceiling to provide fast and effective cooling and heating solutions of rooms. It can be fitted on high ceiling spaces up to 4.3 metres high. They are a type of split AC system that provides a higher-powered cooling function than other air conditioning types.

Ceiling Concealed
Ceiling concealed air conditioners are ideal for small to large areas to install in rooms that are limited in space or with irregular room shapes such as L-shaped, U-shaped, or long rooms. Cool air gets distributed via ducting to multiple rooms using a single ceiling concealed unit which allows each room to achieve a pleasant temperature at the same time.

Sharpe Energy Hub – Supply, Install and Remove

Sharpe Energy Hub supplies, installs and removes air conditioning in Adelaide. Our team has over 40 years of combined experience providing Adelaide homes with efficient home solutions. We develop unique solutions and installation techniques to improve the efficiency of Adelaide homes.

If you’d like to learn more about our range of variable refrigerant flow air conditioning system, contact our friendly team at Sharpe Energy Hub on 8370 9555. We’ll be happy to assist you in finding the right cooling and heating system for your home.