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Space Airconditioning Plc - Daikin Mini VRVIII-S offers High Energy saving air conditioning solutions for Light Commercial Sectors

Daikin Europe N.V. has introduced a ‘mini’ heat pump version of its R-410A VRVIII air conditioning system. Designated VRVIII-S, the new version operates both on single and 3-phase electrical supply and is available in 4, 5 and 6hp models with capacities of 11.2, 14.0 and 15.5kW (cooling) and 12.5, 16.0 and 18.0kW (heating).
Ideal for Light Commercial Sectors
Intended as an extension of the VRVIII system, VRVIII-S is designed for installation in 6 to 9 unit applications and is therefore, ideal for the light commercial sectors. A particularly important feature is the ‘night quiet’ mode, which can be set to cut in automatically 8 hours after peak daytime temperature and run for 9 hours before returning to normal operating mode. Alternatively, the night set mode can be customised with site set starting and ending times. During the night time period operating sound of the outdoor unit is reduced progressively in three increments of 3dBA down to 41 dBA!.
Many Advanced Features
VRVIII-S incorporates all the technically advanced features of the larger VRVIII: Auto charging for example. This important environmental and installation feature enables VRVIII-S to control the amount of additional refrigerant charging during commissioning operation. Pressing the ‘start’ button on a PCB inside the outdoor unit casing after connecting the refrigerant cylinder to the charging port, initiates charging, which ceases automatically once the appropriate volume of refrigerant has been transferred. After charging is complete, pressing a test operation button on the same PCB initiates a check on wiring, shut off valves, sensors.
High COPs are achieved through the incorporation of a high pressure DC reluctance inverter controlled dome compressor, which generates COPs from 3.01 to 3.15 (cooling) and 3.41 to 3.73 (heating). The DC motor maintains high efficiency levels in the most frequently used ‘mid’ to ‘low’ settings, thereby reducing electricity consumption and costs. The compressor also enables the system to operate in wide ambient temperature bands of –50C to 460CDB (cooling) and –200C to 15.50CWB (heating).
Easy Installation
Installation is improved by the casing design of the outdoor unit with a footprint of just 320mm deep by 900mm wide, making it slimmer and reducing installation space requirements by just over 40% compared to VRVIII. It can therefore fit easily onto balconies and narrow ledges. Maximum piping length is 150m, total piping length is 300m and maximum vertical differential between outdoor and indoor units is 50m. The Daikin ‘Super Wiring’ system allows shared use of the wiring between indoor and outdoor units and the centralised remote control, the non polarity of the system obviating incorrect connection and reducing installation time.
Further important technical features include an e-Bridge circuit, which results in additional sub-cooling and an e-Pass heat exchanger, which ensures more effective heat transfer across the heat exchanger and reduces the risk of “cold spots” thereby improving efficiency. Also incorporated is a current sensing function that minimises the difference between actual and predetermined power consumption.
Outdoor unit fan efficiency is also maximised by the incorporation of a DC fan motor, which results in improvements in performance of just over 40%, particularly at lower speeds. Also, the new aerodynamically designed aero spiral fan with bent blades drastically reduces operating sound. The smooth ‘bell mouth’ air inlet is fitted with guide vanes at the intake to reduce air turbulence around the fan blades. Meanwhile, ribs of the new ‘Super’ aero grille are aligned with the discharge flow to minimise noise and turbulence. Special anti corrosion treatment of the heat exchanger ensures greatly increased resistance to salt corrosion.
VRVIII-S is supported by a full range of 13 different model indoor units in 73 different variants comprising 2 and 4 way blow ceiling cassettes, ceiling concealed, ceiling suspended, wall mounted, floor standing and concealed floor standing models. Compatible with the complete Daikin suite of advanced air conditioning monitoring and control systems (DS-net, I-Controller, I-Manager, BACnet Gateway and DMS-IF), VRVIII-S offers high energy saving, precisely controlled and monitored air conditioning solutions for small commercial building projects.
New Connectable Round Flow Cassette
Attractively finished in elegant ‘fresh white’ (RAL 9010) as standard, the new FXFQ-P round flow cassette is also connectable to the VRVIII-S. Available in 9 sizes with capacities of 2.20 to 14.00kW (cooling) and 2.50 to 16.00kW (heating), the units have sound pressure levels ranging from 28 to 44dBA. System compatible with all other VRV indoor units, the FXFQ features the usual Daikin indoor unit functions. Moreover, 360° air discharge ensures uniform air flow and temperature distribution, and air discharge from the corners avoids dead zones that may be subject to temperature differences.
The facility also allows 23 different air flow patterns. The colour of the decoration panel is RAL9010

Email: marketing@spaceair.co.uk

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News Categories : Air Conditioning Systems Chilled Beams Splits
Chillers Air Water Cooled
Fan Coils
Heat Pumps
Split Systems VRV VRF Condensers
Heat Recovery Heat Exchangers