Daikin US7 living comfortably

Daikin US7

The Daikin US7 (short for Ururu Sarara) is Australia's the 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. dai-kin-ú7
  • 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.  

Heating and coolingHumidification for comfort with Daikin US7 - you feel warmer with the right humidity set

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. 
 

   
Temperature 25°C 
Humidity 80% 
You feel warm in humid air even at a constant temperature
Temperature 25°C 
Humidity 50% 
You feel comparatively cooler in dehumidified air

 

Dehumidification with the Daikin Ururu Sarara - you'll feel more comfortable at 50% humidity

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.

 

 
  1. Pre-filter catches dust
  2. Flash streamer releases streams of high-speed electrons with strong oxidation power
  3. Deodorising filter absorbs and breaks down odours before the air is returned into the room

Technology details

3-area intelligent eye


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.

Daikin US7 - Ururu Sarara 7 Dual air intake for even air distribution

 

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.

Ururu Sarara US7 Coanda Air-flow heating heatpump air conditioningCoanda air flow Daikin Ururu Sarara urusara US7 heatpump

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).

Daiken comfort explained

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 Reluctance Scroll motor - innovation standard on US7 Ururu Sarara 7

 

Daikin Swing compressor vs conventional rotary compressor video https://www.youtube.com/watch?v=6SiF7yqFwXQ

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

 

Daiken US7 Technical Specifications

FTXZ-N

  FTXZ25NV1B FTXZ35NV1B FTXZ50NV1B
Casing Colour White White White
Dimensions Unit Height mm 295 295 295
    Width mm 798 798 798
    Depth mm 372 372 372
Weight Unit kg 15 15 15
Fan Air flow rate Cooling Nom. m³/min 7.5 8.4 9.2
    Heating Nom. m³/min 8.6 9.2 10.7
Sound power level Cooling dBA 54 57 60
  Heating dBA 56 57 59
Sound pressure level Cooling Nom. dBA 33 35 38
  Heating Nom. dBA 35 36 38
Piping connections Liquid OD mm 6.35 6.35 6.35
  Gas OD mm 9.5 9.5 9.5
Standard Accessories Item Photocatalytic air purifying and deodorising filter Photocatalytic air purifying and deodorising filter Photocatalytic air purifying and deodorising filter
  Quantity 1 1 1
  Item Wireless remote control Wireless remote control Wireless remote control
  Quantity 1 1 1
  Item Dry batteries Dry batteries Dry batteries
  Quantity 2 2 2
  Item Remote control holder Remote control holder Remote control holder
  Quantity 1 1 1
  Item Indoor unit fixing screws Indoor unit fixing screws Indoor unit fixing screws
  Quantity 3 3 3
  Item Mounting plate Mounting plate Mounting plate
  Quantity 1 1 1
Power supply Name V1 V1 V1
  Phase 1~ 1~ 1~
  Frequency Hz 50 50 50
  Voltage V 220-240 220-240 220-240
E.E.R/C.O.P Cool/Heat 5.95/5.81 5.15/5.05 4.24/4.60
Notes   220V 220V 220V
    230V 230V 230V
    240V 240V 240V
    Front of heat exchanger Front of heat exchanger Front of heat exchanger
    Back of heat exchanger Back of heat exchanger Back of heat exchanger

 

pure-electric

 

Documents

US7 Asian Brochure - a very nice brochure
US7 Asian Brochure - a very nice br…
Installation of the D mobile wifi application -youtube video also available
Installation of the D mobile wifi a…
Installation manual (Europe version) of the US7
Installation manual (Europe version…
US7 Indoor Unit dimensions pdf
US7 Indoor Unit dimensions pdf
US7 Operation Manual
US7 Operation Manual
US7 brochure long form
US7 brochure long form
Ururu Sarara Sales Brochure pamphlet sized
Ururu Sarara Sales Brochure pamphle…
Ururu Sarara Sales Brochure
Ururu Sarara Sales Brochure