Daikin US7

NOTE: This is currently discontinued in Australia. Daikin stopped importing the Daikin US7 until further notice.

The Daikin US7 (short for Ururu Sarara) is Australia's first 7 star (600%) energy efficient heat pump.

This unit is more than just a heat pump / air conditioner, it includes functions to heat, cool, humidify, dehumidify, purify and ventilate the air.

The US7 is packed with advanced features and is one of a kind in the market place.

There is no longer any need to buy three appliances for total climate control in your home. Not only will you have the best comfort solution available for your space heating and cooling requirement but with a Daikin US7 you will save plenty on your household heating and cooling running costs year after year.

Running Costs Simplified

Less than 4 c/kWh, that's how much the popular 2.5kW (cooling) / 3.6kW (heating) US7 (model FTXZ25NV1B) will typically cost to run in an Australian household. If you combine it with a home solar system, which we recommend and are happy to supply, then it will cost even less - around 1-2 c/kWh to operate (based on Victorian average Powershop electricity rates).

Efficiency

The US7 heater air-conditioner is more than 600% efficient compared to direct electric systems and more than 900% efficient when compared to average existing gas ducted systems.  To put it in different terms the unit uses one-sixth (1/6) the total energy of a conventional electric resistive heater and one-ninth (1/9) the energy of an average  gas ducted-heating system, to provide the same amount of heat to your home.

Additional benefits of the US7

✅  Award-winning design: The US7 won the prestigious, 2013 reddot design award in the air conditioning category. 

✅ Intelligent humidity control: Avoids dry air in winter and dehumidifies in summer.

✅ Fresh air, all year round:  Ventilation and purification, guided by a motion-based intelligent eye, for fresh air when and where you need it.

✅ User-friendly control:  Control it with a wireless remote control, via an app or as part of your home automation system.

✅ Energy Efficiency: The only unit to achieve a 7 star rating from the Federal Government. Thanks to advanced energy-saving technologies it uses 30% less energy than conventional split systems.

✅ Auto clean: The US7 automatically cleans its filters for up to 25% additional energy savings

So how does it work?

Heating and cooling

The Ururu Sarara can heat or cool any room quickly and efficiently, making your home comfortable throughout the year.

Humidification, even during heating

Temperature can’t measure how a room feels. 

✔️ The air around us naturally contains a certain amount of moisture

Making the air too dry not only makes your room feel too cool, it also leads to sore throats and dry skin as well as making the body feel warmer, even at lower temperatures - thus the US7's ability to humidify the air reduces heating demand and energy consumption.

✔️ Humidification is known as ‘Ururu’ in Japanese

For humidification (or Ururu), no water reservoir is required. Moisture is absorbed from the outdoor unit and streams into the indoor unit where it is evenly distributed throughout the room.

The Ururu Sarara’s intelligent humidification system draws in just the right amount of latent moisture from outside and distributes it inside, improving comfort levels.  

Sarara, dehumidification without heat loss

There’s more than one way to cool a room in summer. 

✔️ Dehumidification, or ‘Sarara’ in Japanese, reduces the indoor humidity without affecting the room temperature, by mixing cool, dry air with warm air.

So no hot and stuffy rooms any longer! During summer, ambient humidity rises, making rooms feel hot and oppressive. With conventional systems, you’d have to cool the room, wasting energy and electricity.  

In basic terms the advantage of having an inbuilt desiccant wheel (the special hardware that only US7 has out of all domestic units)  is that cooling and humidity control can be dialed up separately.  If it's muggy - you are not forced to cool the house to extremely low temperatures (or at all) to remove the excess humidity).

The Ururu Sarara’s intelligent dehumidification automatically and efficiently transfers the excess moisture out of the room, while always maintaining an even temperature. 
 

Ventilation

Fresh air, even with closed windows 

Unlike a conventional system, US7 brings filtered outside air into your room and because of its powerful ventilation capacity it can fill a 26 m² room with filtered outside air in less than two hours (on standard mode - even more if high is selected).

Furthermore, the incoming air is brought to the desired temperature for enhanced comfort. The air supply fan is located in the outdoor unit, which minimises indoor noise.

Air purification

Non-stop purified and allergy-free air with Daikin Flash Streamer technology 

The Ururu Sarara purifies the incoming air by passing it through dust and pollen filters before the photocatalytic air purification filter breaks down any odours such as cigarette smoke and cooking smells.  

In the final stage, the flash Streamer breaks down any harmful chemicals, viruses and mould. All options including the flash streamer can be enabled or disabled as required.

✔️ Pre-filter catches dust

✔️ Flash streamer releases streams of high-speed electrons with strong oxidation power

✔️ Deodorising filter absorbs and breaks down odours before the air is returned into the room

3-area intelligent eyeTechnology details

Daikin has developed an ‘intelligent eye’ for the Ururu Sarara. It’s a motion detector that knows when you’re in the room, turns the power down and even switches the unit off if you leave the area.  The US7 'eye' also knows where you are in the room, and directs the air flow away from you. A really smart way to control a room’s temperature without ruining its atmosphere.

Automatic filter cleaning

Air conditioners use filters to clean the air as it passes through the unit. And the more particles that collect in the filter, the less efficiently it works.

But the Ururu Sarara’s state-of-the-art self-cleaning technology in the form of an automatic brushing mechanism that makes the need to manually clean out a filter a thing of the past. You get a constantly stable air flow rate while it uses 25% less power. Dust is collected in a convenient, easy to empty container.

Even Air distribution

Completely revamping the indoor unit design structure to increase efficiency

Conventional air conditioners, that draw air from the upper part of the unit, do not allow sufficient utilization of the heat-exchanger at the back of the indoor unit.

By redesigning the interior unit from scratch with a dual intake structure, so that it sucks air from below pushing it over this under utilized section of the heat-exchanger (picture on the right), the efficiency of the heat-exchanger in significantly improved.

Yuragi-pattern airflow (see picture on the bottom right) reproduces a natural breeze effect. The US7 has improved  airflow control technology to achieve a natural breeze effect that is comfortable on the human body even over long periods of time.

Circulating airflow 

Using innovative approach that utilizes the newly designed outlet flap and dual intake structure, the US7 achieves a circulating airflow that takes air to every corner of even a large living room.

Coanda Airflow

The Ururu Sarara 7 has been redesigned to push air "up and over" furniture and objects up to 12 meters from the unit. The louvres have been newly designed to direct air towards the ceiling causing cold air to runs along the ceiling through the "coanda Effect".  

This cold air then comes down opposing walls to give an even distribution of the resultant "coolth" also minimising draughtiness that may be experience with other units and ducted systems.

From the picture above we can see that a conventional air conditioner will direct out cold air straight out and down which will fall right away due to the fact that hot air rises and cold air falls. 

Furniture and other obstructions then impede the airflow creating pockets of cooler air in some parts of the room and much warmer pockets in other parts.

The "Coanda Effect" used by the Ururu Sarara 7 ensures that temperature distribution is more even and there is a lot less of a chance for different temperature pockets of air to be present in a room creating a much more comfortable outcome.

Maintaining comfort levels

Using the superior airflow technology mentioned above the US7 will achieve the desired set temperature in a room much quicker than conventional air conditioners, eliminating large swings from too hot to too cold (pictured below).

Daikin’s inverter technology is a true innovation in the field of climate control. The principle is simple: inverters adjust the power used to suit the actual requirement - no more, no less!

This technology provides you with two clear benefits:

Comfort

The inverter repays its investment many times over by improving comfort. An air conditioning system with an inverter continuously adjusts its cooling and heating output to suit the temperature in the room, thus improving comfort levels.

The inverter reduces system start-up time, so the required room temperature is reached more quickly. As soon as the correct temperature is reached, the inverter ensures that it is constantly maintained.

Energy efficient

Because an inverter monitors and adjusts the ambient temperature whenever needed, energy consumption drops by 30% compared with a traditional on/off system.

Daikin Swing compressor vs conventional rotary compressor video 

The Daiken US7 remote control 

The Ururu Sarara comes with a handy remote that tells you everything you need to know at a glance (even in the dark thanks to its illuminated buttons).

But you can also set the temperature without even being in the room via your iPhone or Android smartphone, or as part of your home automation system.

How to operate the US7 remote 

Daikin US7 Video manual for the remote control operation.

Other Videos

• Focused mainly on cooling but a great video https://www.youtube.com/watch?v=IkRlJdouvvE
• General overview video #1 https://www.youtube.com/watch?v=dAhJDxASlo4
• General overview video #2 https://www.youtube.com/watch?v=z-KopPQ0ZJI
• From the previous model, but a great video showing how the unit operates https://www.youtube.com/watch?v=-J13TB3tWiY
• Daikin on-line controller manual setup https://www.youtube.com/watch?v=Tu0LO6tQR7A
• Daikin on-line controller WPS setup https://www.youtube.com/watch?v=s2JhJBlWttE
• Installation video for wifi (Technical) https://www.youtube.com/watch?v=C2fdTc3oruM

Daiken US7 Technical Specifications