MULTI HEAD/SPLIT SYSTEM AIR CONDITIONING: MULTI ROOM SOLUTIONS

A multi system air conditioner is an ideal solution for cooling or heating multiple rooms within a residential setting. The multi system  operates by utilising a single outdoor unit that contains the compressor and condenser. The outdoor unit extracts heat from the indoor air and releases it outside. Connected to the outdoor unit are multiple indoor units, which are installed in separate rooms or zones.

These indoor home air conditioner units come in different types, such as wall mounted, floor-mounted, or concealed units, to accommodate various installation requirements and aesthetic preferences. The refrigerant, a specialised fluid that can absorb and release heat, circulates through the system. The outdoor unit pumps the refrigerant to the indoor units through copper pipes called refrigerant lines. Each indoor unit has its own controls, allowing occupants to independently set the desired temperature and other settings.  

When an indoor unit is turned on, a fan circulates the indoor air across the evaporator coil within the unit. In cooling mode, the evaporator coil cools the passing indoor air, removing heat, before circulating the cooled air back into the room. In heating mode, the process is reversed, with the evaporator coil extracting heat from the outdoor air and transferring it indoors to provide warmth.

Using a multi system air conditioner offers a wide range of advantages for homeowners in comparison to a single room air conditioner, including:

• Individualised Comfort: One of the primary advantages of a multi system is the ability to achieve individualised comfort in each room. With separate indoor units installed in different areas, occupants can set specific temperature preferences for each room.

• Energy Efficiency: The best multi systems are designed with energy efficiency in mind. These systems incorporate advanced technologies like inverter compressors, which adjust the cooling or heating capacity based on the current demand. 

• Zoning Capability: Having a multi system provides zoning capability, meaning you can divide your home into different zones or areas, each with its own thermostat control. This allows you to cool or heat only the rooms that are occupied, saving energy by avoiding unnecessary conditioning of unoccupied spaces. 

• Space-Saving Design: Multi systems utilise a single outdoor unit to serve multiple indoor units, which saves valuable space around the external parameter of your home.

• Easy Installation and Maintenance: Installing a multi system is generally simpler and less invasive than installing separate systems for each room.

• Extensive indoor unit line-up: Multi systems offer flexibility in terms of indoor unit types and placement options. Whether you prefer wall mounted, floor-mounted, or concealed units, you can choose the units that best match your interior design for each room.

Central Control: Homeowners can enjoy the luxury of controlling each room’s temperature individually via dedicated remotes or opt for a state-of-the-art central LCD controller, supporting up to nine languages. The controller ensures a unified setting of room temperature and airflow volume for maximum comfort.

Regular servicing of your multi split air conditioner is essential to ensure optimal performance and longevity for residential properties. The frequency of servicing can vary depending on several factors, including the type of air conditioner, usage patterns, and environmental conditions. Here are some general guidelines:

• Annual / Seasonal Servicing: It is recommended to have your home air conditioner serviced at least once a year. This routine maintenance helps identify and address any minor issues before they escalate into major problems. As Australia is exposed to a wide range of extreme temperatures, it is recommended to schedule frequent servicing of your air conditioner. This ensures that your unit is in top shape and ready to perform at its best.

• Filter Maintenance: Clogged or dirty filters can hinder airflow and reduce efficiency. It’s recommended that you clean the air conditioner’s indoor units every 6 to 12 months depending on use, although this varies by model.

• Environmental Considerations: It’s important to make sure the outdoor unit is maintained to allow the unit to work efficiently. If you live in an area with high pollution, dust, or allergens, it may be necessary to service your air conditioner more frequently. 

To organise a service on your air conditioner, contact Fujitsu General Assist on 1300 364 484 to speak to a member of our friendly customer service team.

Determining the right size of a multi split air conditioner is crucial to ensure efficient and effective cooling and heating for your home. To determine the appropriate size, it's best to consult with a professional technician or contractor who can perform a load calculation. This calculation takes into account factors such as the size of your home, insulation levels, window orientation, occupancy, and more. The technician will assess your specific cooling/heating needs and recommend the appropriate capacity for your multi system. Avoid the temptation to oversize or undersize the system, as it can lead to inefficient operation, increased energy consumption, and potential discomfort. 

You can also use the Fujitsu Assist Product Selector Tool available on our website to help you find a suitable air conditioning solution for your home. This tool uses your room sizes and space to guide you in the right direction.

Using a multi split system air conditioner can have health benefits for you and your family. Many of Fujitsu’s units are equipped with an Apple Catechin filter, which absorbs microorganisms, fine mould spores and dust particles during operation and leaves your home a safer and more comfortable place to live.

If your single or multi room air conditioner is not equipped with advanced filtration technology, it may still be able to improve the indoor air quality in your home, by cycling the existing or stagnant air and removing contaminants. However, the unit, and especially the filtration system, must be well maintained to have a positive effect on indoor air quality.

Individual control over the temperature of each room is one of the greatest advantages of a multi room air conditioner. Fujitsu General units offer this flexibility, enabling the occupants of each room to set the indoor temperature to match their preferences. Another advantage of a multi room air conditioner is that it offers the ability to only heat or cool the areas of your home which are being used, providing both individualised comfort and efficiency gains.