VRV IV - daikinmea.com

1 VRV IV. Sets the Again VRV IV heat pump and water cooled systems High Ambient Why choose Daikin Our promise is to ensure that your customers can depend on Daikin for the ultimate in comfort, so that they are free to focus on their own working and home lives. We promise to dedicate ourselves to technological excellence, a design focus and the highest quality standards so that your customers can trust and rely on the comfort we deliver. Our promise to the planet is absolute. Our products are at the forefront of low energy consumption and we continuously innovate to reduce the environmental impact of hvacr solutions further. We lead where others follow. We will continue our global leadership in hvacr . solutions as our specialist expertise in all market sectors combined with 90. years' experience enable us to deliver added value in long-lasting relationships based on trust, respect and credibility. Table of contents VRV IV standard & technologies . Benefits.

2 NEW ies W-s er Outdoor units . UNIQ UE. autoo clea lter fo ing n Indoor units conce r a ceiling led units Ventilation and Air Handling . UNIQU. Control Systems mini B E. MS. 4 QFDJGJDBUJPOT . 03. Over 30 years of VRV History 1987 1998 2004 2008. Introduction the original VRV air Launch inverter series with Expand to light commercial sector with Launch of heat pump conditioning system to Europe, R-407C VRVII-S optimised for heating invented by Daikin in 1982 - (VRV III-C). Extended operation . systems 1987 1991 1994 1998 2003 2004 2005 2006-2007. 2003. Introduce VRVII-- the rst R-410A. VRF system 2005. 1991 Available in cooling, heat pump and Extends VRVII inverter range with water cooled Introduce VRV heat heat recovery recovery VRV-WIII. Simultaneous cooling and 1994 refrigerant circuit Available in heat pump and heat recovery heating Awarded ISO9001 certi cation . 2009 2011 2015. Extends VRVIII range Launch total solution concept Launch of VRV IV S-series with water cooled VRV-WIII Integrate hot water production and Most compact unit in the market Geothermal version available Biddle air curtains into VRV system Widest range in the market Connectable to Daikin Emura and Nexura.

3 6-2007 2008 2009 2010 2011 2012 2015. 2006-2007. Launch the extensively re-engineered VRVIII 2010 2012-2014 2015. Available in cooling, heat Launch of replacement VRV Setting new standards with the Launch of VRV IV i-series pump and heat recovery (VRVIII-Q) launch of VRV IV The invisible VRV. Automatic charging and Upgrade to replace older VRV units Unique product concept testing Continuous heating on heat pumps VRV IV High Ambient Available in heat pump, heat recovery, water-cooled and replacement series . VRV IV standard &. technologies Our new VRV IV systems set pioneering standards in all-round climate comfort performance. Total design simplicity, offering rapid installation, full flexibility as well as absolute efficiency and comfort. Find out about all these revolutionary changes at . VRV IV =. 3 revolutionar y standards Variable Refrigerant Temperature Refrigerant-cooled PCB. VRV configurator + unique VRV IV core technologies Newly developed inverter compressor 4-side heat exchanger Predictive control Outer rotor DC fan motor.

4 Variable refrigerant temperature Customise your VRV for The colder it gets, the lower the load on the building and the lower the capacity need best seasonal e ciency Cooling requirement and comfort Design point in cooling mode Capacity & Load Thanks to its revolutionary variable refrigerant Adjust capacity by Te control to meet temperatue technology (VRT), VRV IV continuously the load (avoid over capacity System capacity and ON/OFF. adjusts both the inverter compressor speed and the operation). refrigerant temperature, providing the necessary capacity to meet the building load with the highest 25 30 38 46 Outdoor temperature seasonal e ciency at all times! Seasonal e ciency increased by 28%. t weather compensating control on the The lower the capacity need the higher the refrigerant temperature can be market Customer comfort is assured thanks to higher outblow temperatures (preventing cold cooling (evaporating temper- draughts). Refrigerant temperature in Variable Te How does it work?)

5 Fixed Te ature). VRF standard Capacity is controlled only with the variance of the 25 30 38 46 Outdoor temperature inverter compressor Daikin VRV IV. Variable Refrigerant Temperature control for energy saving in partial load condition. A higher refrigerant temperature results in a higher The capacity is controlled by the inverter compressor seasonal e ciency and higher comfort AND variation of the evaporating (Te) and condens- ing (Tc) temperature of the refrigerant in order to achieve the highest seasonal e ciency. E ciency E ciency up 25 30 38 46 Outdoor temperature Variable Temp. Fixed Temp.. 4 24/03/15 11:47. Di erent modes to maximise e ciency and comfort For maximum energy e ciency and customer satisfaction, the outdoor unit needs to adapt the evaporating/condensing temperature at the optimum point for the application. How to set the di erent modes? p ate n Set up the main operation mode of the system De ne how the system reacts to changing loads ts St St Automatic* Where a quick increase of load is expected such as conference rooms.

6 Powerful Quick reaction speed to changing load has priority, with temporarily colder Quick reaction speed Top e ciency outblow as a result. Quick Same as above but slower response than the powerful mode. The perfect balance: This mode would be suitable for most o ce applications Achieves top e ciency throughout the year, Mild * and it is the factory set mode. reacts quickly on the hottest days The perfect balance: Slower reaction speed with top e ciency High sensible Gives customer choice for xing coil temperature which avoids cold draughts. (User selection) Powerful A quick reaction speed to changing load has priority, with temporarily colder outblow as a result. Quick Same as above but slower response. Quick reaction speed Top e ciency The air o temperature remains fairly constant. Mild Suitable for low ceiling rooms. Coil temperature would not change due to uctuating load. Year round top e ciency Eco Suitable for computer rooms. Suitable for low ceiling rooms.

7 This is how most other VRF systems work and can be used for all general type of Basic No submodes applications. Suitable for computer rooms. Current VRF standard Suitable for low ceiling rooms. * Factory setting . 5 24/03/15 11:47. Software for simpli ed commissioning, con guration and customisation . 8 24/03/15 11:48. VRV. con gurator software Graphical interface Manage systems over multiple sites in exactly the same way Retrieve initial settings Simpli ed commissioning Simpli ed servicing The VRV con gurator is an advanced software The user-friendly display for outdoor units simpli es solution that allows for easy system con guration basic servicing tasks. and commissioning. Easy-to-read error report Less time is required on the roof to con gure the Easy-to-understand menu indicates quick and easy outdoor unit on-site settings Multiple systems at di erent sites can be managed Easy-to-follow parameters for checking basic in exactly the same way, providing simpli ed functions: high pressure, low pressure, frequency commissioning for key accounts and operation time, compressor history, Initial settings on the outdoor unit can be easily temperature of discharge/suction pipe.

8 Retrieved -digit egment display Connect directly to your laptop Pre con gured settings from o ce User-friendly interface instead of push buttons . 9 24/03/15 11:48. Unique VRV IV. core technologies Newly developed patents compressor Full inverter High e ciency J-t ole motor Enabling variable refrigerant temperature ronger magnetic eld and and low start-up currents higher rotation e ciency Stepless capacity control Reluctance brushless DC motor Thixocasting process Increased e ciency compared to Compression volume is increased b AC motors by simultaneously using to a new high-durability material cast in a semi- normal and reluctance torque molten state Powerful neodymium magnets e ciently generate high torque High-pressure oil reduces thrust losses Refrigerant-cooled PCB. Reliable cooling because it is not in uenced by ambient air temperature Smaller switchbox for smoother air ow through the heat exchanger increasing heat exchange e ciency by 5%. patents 4-sided, 3-row condenser coil Condenser coil surface up t rger (up t ), leading t re e ciency patents.

9 10 24/03/15 11:48. Waste UNIQUE Target compressor operation Predictive Control Function (PCF) General VRF: Double time against VRV IV. Reaches the target capacity/refrigerant temperature t t (VRV IV) (general VRF). faster VRV IV with PCF. Reaches the target without overshooting, so there is General VRF with PI control no waste, leading to improved e ciency Target capacity/refrigerant temperature Three capacity settings give more precise control VRV IV: PCF. for user comfort Compressor works with predictive data for the control The large number of Daikin systems already in operation result: quick convergence to the target temperature Half time and which are monitored by our Intelligent Network and reduction of waste operation of the compressor against software put us in the unique position of being able to general analyse this data and develop the predictive compressor General VRF: Pi control VRF. Compressor works with feedback only for the control control function.

10 Result: waste operation and longer time before reaching target set point DC fan motor UNIQUE. Outer rotor DC motor for higher e ciency Conventional motor with inner rotor Daikin outer rotor Larger rotor diameter results in greater force for the same magnetic eld, leading to better e ciency Better control, resulting in more fan steps to match the actual capacity Sine wave DC inverter F. Optimizing the sine wave curve results in smoother F. motor rotation and improved motor e ciency. Rotor Stator Stator Rotor DC fan motor The use of a DC fan motor o ers substantial improvements in operating e ciency compared to conventional AC motors, especially during low speed rotation. Standard heat exchanger e-Pass heat exchanger E-Pass Heat Exchanger Optimising the heat exchanger's path layout prevents In C In C. heat being transferred from the overheated gas C C. section to the sub-cooled liquid section which is a more e cient way to use the heat exchanger. C C C C.