GLOBAL | English
PRESS RELEASE
July 22, 2010
Fujitsu General Limited
(NO.10-N02-15)
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Releasing home-use multi inverter air conditioners adaptable for up to 8 rooms Expanding North American business by strengthening the lineup of home-use multi air conditioners |
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Our company will release home-use multi inverter air conditioners (14.1kW type) adaptable for up to 8 rooms for North American market from July 31. We will aim to expand the business by strengthening the lineup of home-use multi air conditioners together with the multi inverter air conditioners (7.0/10.3kW types) adaptable for 2 and 4 rooms already in the market. In North America, a central air conditioning system to cool and heat all rooms centrally is predominant for household, but recently, the demand for energy-saving individual air conditioning system to control air conditioning of each room independently is expected to increase. Especially, for large-size housings, the needs for multi room air conditioning system which can control cooling and heating for all rooms individually with one outdoor unit are increasing.
In order to respond to such needs, the multi air conditioners for buildings have been used for housings in the past but there have been such problems as the refrigerant noise and the big size of outdoor unit for home use.
Our company devised "Branch Box unit" in which multiple expansion valves to adjust the refrigerant noise of indoor unit are newly built in allowing low noise operation of indoor units and easy installation of outdoor unit.
Therefore, we developed the home-use multi inverter air conditioners adaptable for large-size houses with many rooms.
The new product can connect up to 8 indoor units with one outdoor unit, and by separating the expansion valves, which generate refrigerant noise, as " Branch Box unit " and installing under floor or roof, the low noise operation of indoor unit has been realized.
Also, the outdoor unit has been designed very compactly with height of 91.4cm by adopting an air blowing fan with large aperture of ¢515mm of our own development and can be installed at various places. In spite of the compact design, the new product contributes to the reduction of power consumption by realizing the industry's top class*1 energy-saving performance.
Furthermore, with the centralized remote controller "Central Remote Controller" newly developed for home use, all indoor units can be centrally controlled with simple operation, and it is possible to set the temperature of each indoor unit individually and register the operating schedule for one week individually, which realizes efficient individual air conditioning and enhances the energy-saving effect.
Besides, to cope with the increased connections with indoor units, the simplification of installation was improved by adopting the function to check the faulty wiring automatically and changing the connecting part of all pipes to flare connection system which requires no welding work.
Our company will strive to expand business by strengthening the lineup of multi air conditioners suitable for the individual air conditioning system and positively introducing the excellent energy-saving performance in North America.
Home-use multi inverter air conditioner for North America (System example)
Main features
- Can connect up to 8 indoor units with one outdoor unit
- Indoor and outdoor units suitable for home use
- Low noise operation of indoor unit
- Compact outdoor unit with height of 91.4cm
- Centralized remote controller "Central Remote Controller" suitable for home use
- Can control all indoor units centrally with simple operation
- Schedule management function to realize efficient individual air conditioning
- Simplification of installation work
- Function to check faulty wiring
- Flare connection system for easy pipe connection
1. Can connect up to 8 indoor units with one outdoor unit
In the new product, maximum 8 indoor units can be connected with one outdoor unit by installing multiple "Branch Box unit" equipped with expansion valve to adjust the volume of refrigerant of indoor unit. Also, the maximum pipe length of 70m between outdoor unit and indoor units and the largest height difference of 30m have been realized to suit for the houses where the installation space for outdoor unit is limited.
Maximum 3 Branch Box unit can be installed and maximum 3 indoor units can be connected with one Branch Box unit. Vertical, horizontal and ceiling-hung installation is possible and also the installation in such small space as under floor or under roof is possible.
2. Indoor and outdoor units suitable for home use
i)Low noise operation of indoor unit
Multi air conditioner for building use has expansion valve built in the indoor units but in the new product, low noise operation was realized by separating the expansion valve, as "Branch Box unit", which generates refrigerant noise. 3 types, 12 models, of wall mounted, ceiling cassette and ducted can be connected.
| Type | 2.0kW | 2.6kW | 3.5kW | 5.3kW | 7.0kW |
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| Wall mounted |  |
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| Ceiling cassette | |
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| Ducted | |
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ii) Compact outdoor unit with height of 91.4cm
As the height is suppressed to 91.4cm by equipping air blowing fan with large aperture ¢515mm of our own development, the outdoor unit can be installed in various places even under the window which is usually difficult.
Also, in spite of the compact size, the new product realizes the industry's top class*1 energy-saving performance and contributes to the reduction of power consumption by adopting heat exchangers arranged in 3 rows and DC twin rotary compressor.
3. Centralized remote controller "Central Remote Controller" suitable for home use
i) Can control all indoor units centrally with simple operation
A centralized remote controller "Central Remote Controller" to control all indoor units centrally was newly developed for home use. By simple operation with crisscross key and button, the individual adjustment of turning on/off, operation mode, temperature, air volume, etc. can be made. Also, as the full-dot LCD screen with backlight is equipped, the visibility of texts and figures has improved.
ii) Schedule management function to realize efficient individual air conditioning
A schedule management function to be able to set one week operation schedule of each indoor unit individually was adopted. Four patterns of operation, namely, operation time, power on/off, operation mode and temperature can be registered, which realizes further efficient individual air conditioning and enhances energy-saving effect.
4. Simplification of installation work
i) Function to check faulty wiring
A function to check automatically the faulty wiring or forgotten wiring between outdoor unit, Branch Box unit and indoor units was adopted. The function works before the test operation and, if there is any abnormality, the error code is shown on the circuit board of outdoor unit. Also, in case of faulty wiring, the point of error and correct point are shown. By this function, the false installation work due to the increase of connection of indoor units can be reduced.
ii) Flare connection system for easy pipe connection
As a flare connection system which has no cause for concern of inflammability like welding workis adopted for the pipe connection part between outdoor unit, Branch Box unit and indoor unit as in the case of conventional home-use air conditioner, simple and safe installation work has become possible.
Main specifications/Time of release/Production quantity
Main specifications of outdoor unit (Performance in case of combination with 4 indoor units of small-size wall mounted type)
| Model name | AOU48RLXFZ |
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| Power supply | Single phase 208-230V 60Hz |
| Cooling capacity | 14.1kW |
| Heating capacity | 15.8kW |
| Seasonal Energy Efficient Ratio (cooling operation) | SEER 17.0 |
| Energy Efficient Ratio (cooling operation) | EER 9.25 |
| Seasonal Energy Efficient Ratio (heating operation) | HSPF 9.8 |
| Dimension (H x W x D) | 914mm × 970mm × 370mm |
| Weight | 98kg |
| Time of release | July 31, 2010 |
| Production quantity (First year) | 2000set (Outdoor unit basis) |
Note
- *1 the industry's top class :
- In the 14kW class multi air conditioner in North America and as of July 22, 2010 (SEER17.0)
Contact details
Contents in each release are at the time of release.
These contents are subject to change without prior notice.
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