PRESS RELEASE

December 3,2009
Fujitsu General Limited
(NO.09-N05-27)

Realizing industry's top class ^(*1) energy-saving performance ^(*2) by adopting original high efficiency compressor

Releasing 3 models of large-size wall-mounted inverter air conditioners for Australia

(Indoor units : ASTA30LFC, ASTA30 / 34JFC Outdoor units : AOTR30LFT, AOTR30 / 34JFT)

Our company will release 3 models (8kW cooling / heating, 8kW / 9.4kW cooling only) of large-size wall-mounted inverter air conditioners realizing industry's top class ^(*1) energy-saving performance ^(*2) for Australia sequentially from this month.

In Australia where the interest in global environmental issue is high, the requirement for energy-saving performance of electrical goods is strong, and the MEPS ^(*3) regulations obliging manufacturers to improve energy-saving performance and the Energy Rating Labeling System obliging manufacturers to display the energy consumption efficiency on each unit are in force. All air conditioners, whether home-use or commercial-use, are subject to the regulations.

Under these circumstance, we will release 3 new models which are realizing industry's top class energy-saving performance and energy labeling notation in spite of the industry's smallest ^(*4) size indoor unit.

The development of the high efficiency air conditioners has been made possible by adopting the compressors of our original development for the first time and realizing the optimization of energy efficiency.

The compressors ^(*5) developed this time have achieved about 5% higher energy efficiency compared with equal class of compressors and, the designing was made to lower the loss of heat transmission of heat exchanger and maintain the sufficient lubricating performance for long piping installation which is required for large facility such as buildings by reducing the ratio of lubricating oil contained in the circulating refrigerant by about 50%.

Thereby, significant improvement of energy-saving performance of middle and large size air conditioners which are increasingly demanded and space saving of installation by downsizing indoor units have been realized.

Large-size wall-mounted inverter air conditioner for Australia

Left :	Outdoor unit equipped with original high efficiency compressor (AOTR30LFT, AOTR30 / 34JFT)
Right :	Industry's smallest indoor unit (ASTA30LFC, ASTA30/34JFC)

Main features

Realizing industry's top class ^(*1) energy-saving performance ^(*2) by adopting original high efficiency compressor
Realizing space saving installation with industry's smallest ^(*4) size indoor unit
Meeting wide variety of customers' needs for installation with maximum pipe length of 50m ^(*6) and maximum height difference of 20m

Main specifications

Model name			ASTA30LFC AOTR30LFT	ASTA30JFC AOTR30JFT	ASTA34JFC AOTR34JFT
Power supply		V / φ / Hz	240V / 1φ / 50Hz	240V / 1φ / 50Hz	240V / 1φ /50Hz
Cooling capacity (max)		kW	8.0 (9.0)	8.0 (9.0)	9.4 (10.0)
Heating capacity (max)		kW	9.0 (11.4)	-	-
Energy consumption efficiency (cooling)		kW/ kW	3.10	3.20	2.94
Energy consumption efficiency (heating)		kW / kW	3.41	-	-
Energy labeling		Cooling / Heating	4.5 / 4.5	5.0 / -	4.0 / -
Dimension (H x W x D)	Indoor unit	mm	320 x 998 x 228
Dimension (H x W x D)	Outdoor unit	mm	830 x 900 x 330
Weight	Indoor unit	kg	14
Weight	Outdoor unit	kg	62	58	58

Release time

Sequentially from end of December, 2009

Production quantity (first year)

25,000 sets

Reference

Feature of high efficiency DC inverter type “2-cylinder rotary compressor” (N-TF30ND)

1. High efficiency designing

In the compressors developed this time, the optimization of cylinder volume and cylinder diameter is made to maintain high efficiency for the operation range from low speed to high speed. Also, to make use of operation characteristics of DC motor corresponding to the load fluctuation, the optimization is made by designing the magnetic circuit using magnetic field analytic technology.

Thereby, 5% higher energy efficiency compared with equal class of compressors was achieved.

2. Reducing discharge oil by half

A part of lubricating oil inside the compressor is discharged outside the compressor, but excessive discharge oil may cause the lowering of cooling performance of air conditioner or the burning of bearing part by the lowering of oil level inside the compressor.

In the compressors developed this time, the shape of lubricating oil separation board inside the compressor and its positioning are optimized to suppress the ratio of lubricating oil contained in the circulating refrigerant. Also, the designing is so made as to lower the loss of heat transmission by reducing the lubricating oil contained in the circulating refrigerant by about 50% and maintain the lubricating performance sufficient for long piping installation required for such large facility as buildings.

High efficiency DC inverter type “ 2-cylinder rotary compressor” (N-TF30ND)

Note

*1 Realizing industry's top class :: As of December 3, 2009 and according to our company's survey. (In 8kW / 9.4kW class in Australia)
*2 Energy-saving performance :: 8kW : Cooling / Heating EER 3.10 / COP 3.41 (Cooling / Heating operation); 8kW : Cooling only EER 3.20; 9.4kW: Cooling only EER 2.94
*3 MEPS :: Minimum Energy Performance Standard
*4 Industry's smallest :: As of December 3, 2009 and according to our company's survey.
(In 8kW / 9.4kW class in Australia. Industry's smallest both in width and depth)
*5 The compressors :: High efficiency DC inverter type “2-cylinder rotary compressor” (N-TF30ND)
*6 Maximum pipe length of 50m :: Maximum pipe length 30m for ASTA30 / 34JFC (AOTR30 / 34JFT)