VRF Series - Business brochure
60Pages

VRF Series The most advanced commercial air conditioning system

Index VRF Series 4 Outdoor units 16 Indoor units 26 Controls 44 Complementary products 52

4 4 The most advanced commercial air conditioning solution As a world-wide leader in electronics Toshiba not only develops new technologies but provides products and systems that improve health and comfort. By the 1980s Toshiba had a broad product offering. Toshiba was the first to introduce the inverter driven unit in 1981 and the twin-rotary compressor in 1988. Our objective is to serve the needs of all, our customers, shareholders and employees, by implementing forwardlooking corporate strategies in a responsible and responsive manner. As good corporate citizens, we seek to further the...

5 Toshiba: VRF delivers maximum power and energy savings With the new generation of Variable Refrigerant Flow units, MiNi-SMMS, SMMS cooling only and heat pump and SHRM heat recovery ranges, Toshiba sets new technological standards, incorporating DC twinrotary compressors in all outdoor units, compatible with the highdensity refrigerant R-410A. Thanks to the use of these dual-compressor systems, the system operation load is distributed more evenly, with a special controller regulating the operating sequence of outdoor units and individual compressors. This innovative technology also allows...

6 Business 6 Only quality, pure and simple Toshiba has been studying, designing and creating innovative air conditioning systems for 30 years and as a result has always offered the highest performance in the market. Quality and technology have always been Toshiba’s strength and will remain the trademark that will differentiate Toshiba air conditioners from the competition. This is the philosophy behind every Toshiba product. With the use of the special inverter controlled compressors, the new MiNi-SMMS, SMMS and SHRM ranges offer a significant reduction in mechanical and electrical stress....

7 Unlimited flexibility Optimised product choice The ultimate inverter system Minimised consumption Precision is our top priority Sophisticated inverter control permits matching the actual refrigerant flow to the capacity required by the application for each indoor unit. This results in optimised efficiency of the refrigerant cycle and increased precision in maintaining the required temperature, improving comfort for the occupants. The required capacity and the related technical parameters for each indoor unit are electronically transmitted to the outdoor unit in order to optimise the zone...

8 Compressor development and ecology Conventional 2-in-1 scroll SMMS-SHRM Dual DC Twin-Rotary MiNi-SMMS DC Twin Rotary This consists of one inverter-driven compressor and one fixed-speed compressor. Each scroll compressor comprises a fixed scroll (spiral) and an oscillating scroll. The oscillating scroll fits within the fixed scroll. Refrigerant is drawn from the outside of the meshing spirals and squeezed towards the centre of the scrolls, thereby pressurising the refrigerant. To minimise leakage, the contact force required between the two scrolls is considerable and the scroll surfaces...

9 Toshiba – focussed on energy conservation Toshiba has made a significant investment into researching and developing technologies that focus on protecting the environment and saving energy. The inverter control used for Toshiba’s VRF range incorporates more, smaller steps to deliver only the required power and achieve the temperature desired by the occupant much faster. The increase in control steps ensures a more precise and stable temperature and eliminates power surges common in standard, non-inverter systems. This increases energy efficiency, compressor life and user comfort.Toshiba...

10 Reliability and savings compressors with the MiNi-SMMS also reduces the risk of compressor failure, more common in standard noninverter systems. maintaining even room temperatures, as well as the environment by reducing energy consumption. During operation the SMMS and SHRM systems select which outdoor unit and which compressor are to operate to deliver the required power. Inverter systems save energy as continuous operation offers the same capacity with lower power consumption. This benefits all occupants by Reliability Savings Conventional system Operate Stop On On Off Off 1 2 3 4...

11 11 Smooth control By using all inverter-driven compressors, Toshiba is able to significantly reduce the electrical and mechanical stresses that are placed on fixed-speed compressors during startup. Current absorption on an inverterdriven compressor is smoothed out at start-up thus reducing the wear on the electrical and mechanical components and increasing reliability. Stable operation The active oil management system continually monitors the level of oil in all compressors, should an oil shortage be detected in any compressor, oil is automatically transferred from a compressor in...

12 12 Silence is golden As a result of detailed improvements such as the fan drive circuit, fan blade design and construction of the outlet duct our design teams have successfully reduced outdoor unit noise levels. These studies have eliminated the peak noise levels at Enlarged fan blade for smother air flow High-efficiency DC fan motor start up, normally associated with fixed-speed systems, by using soft start controls. An optional night operation/sound deadening control circuit board is available for reducing noise levels overnight by limiting the system’s maximum operation. This New...

13 Wide range of applications The following configurations hold for all VRF range: MiNi-SMMS, SMMS and SHRM The MiNi-SMMS heat pump is available in three models, 4, 5 and 6 HP, delivering cooling capacities from 12.1 kW to 15.5 kW and heating capacities from 12.5 to 18 kW. One outdoor unit can operate up to nine indoor units. Line branching after header branching - Unique system The SMMS heat pump can incorporate 28 outdoor unit models with 22 cooling capacities from 14 kW to 135 kW and heating capacities from 16 kW to 150 kW, enhancing application flexibility. Whilst the SHRM, heat...