Daikin VRV II Series Technical Data Manual
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Also See for VRV II Series:
- Introduction manual (42 pages) ,
- Design, installation & testing instructions (242 pages)
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Summary of Contents for Daikin VRV II Series
- Page 1 technical data Systems VRVII & VRV-WII Features...
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Page 2: Table Of Contents
• VRVII & VRV-WII features VRVII & VRV-WII features Table of contents Creating maximum comfort Inverter technology - VRVII & VRV-WII ....................3 Smart control brings comfort - VRVII & VRV-WII ................4 Less frequent start/stop cycle - VRVII & VRV-WII................4 PID control ................................5 Operation control of small capacity indoor units ................5 Control flow ................................5 Energy efficient solution... - Page 3 • VRVII & VRV-WII features VRVII & VRV-WII features Table of contents Simple and rapid installation Short installation time - VRVII & VRV-WII..................15 Dramatic reduction in installation space ................... 15 Modular & lightweight ..........................16 No structural reinforcement necessary - VRVII................16 Unified REFNET piping - VRVII .........................
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Page 4: Creating Maximum Comfort
• VRVII & VRV-WII features Creating maximum comfort Inverter technology - VRVII & VRV-WII The linear VRV system makes use of a variable Proportional Integral (PI) control system which uses refrigerant pressure sensors to give added control over inverter and ON/OFF control compressors in order to abbreviate control steps into smaller units to provide precise control in both small and larger areas. -
Page 5: Smart Control Brings Comfort - Vrvii & Vrv-Wii
Less frequent start/stop cycle - VRVII & VRV-WII • The technique adopted by Daikin, of regulating the capacity using multiple compressors clearly results in minimum switching losses and power surges because of the overlap in capacity and frequency •... -
Page 6: Pid Control
• VRVII & VRV-WII features Creating maximum comfort PID control Proportional Integral Derivative control with an automatic capacity balancing circuit: – enables the use of lengthy piping up to 100 meters (actual length) – consists of two control systems: 1 Oil control system that controls the refrigerant oil volume to prevent it from raising or backing up in the pipes 2 Refrigerant flow stabilization mechanism: prevents refrigerant drift, caused by level difference of indoor units in the same system. -
Page 7: Energy Efficient Solution
• VRVII & VRV-WII features Energy efficient solution Low running costs - VRVII & VRV-WII • VRV systems have low running costs because it permits each zone to be controlled individually. That is, only those rooms that require air conditioning will be heated or cooled, while the system can be shut down completely in rooms where no air conditioning is required. -
Page 8: Low Operation Sound Level - Vrvii
Energy efficient solution Low operation sound level - VRVII • Continuous research by Daikin into reducing operation sound levels has resulted in the development of a purpose designed inverter scroll compressor and fan. • The new grille and fan offer low noise, high volume airflow and are housed in a compact casing together with the associated compressor components. -
Page 9: Operation Range Of Outdoor Temperature - Vrvii
• VRVII & VRV-WII features Energy efficient solution Operation range of outdoor temperature - VRVII Standard operation down to -20°C outdoor ambient temperature Advanced PI control of the outdoor unit enables VRVII heat recovery and Inverter cooling only/heat pump series to operate at outdoor ambients down to -5°C in cooling mode and down to -20°C in heating mode. -
Page 10: High Reliability
• 24 hours salt spray test SS DIN 50021 Bare aluminium • 96 hours humidity cycle test KFW DIN 50017 Daikin P.E. • 48 hours room temperature & room humidity testing period : 5 cycles Cycle contents of 1 cycle (48 hours): 2 Kesternich test (SO2) according to DIN50018 (0.21) -
Page 11: Double Back-Up Function - Vrvii
• VRVII & VRV-WII features High reliability Double back-up function - VRVII In the event of a compressor malfunction, the remotely controlled or field set back-up function in the outdoor unit in question (and also between different outdoor units) will allow emergency operation of another compressor in order to maintain 8 hour maximum interim capacity Duty cycling - VRVII &... -
Page 12: Eco Friendly
Optimised R-410A design - VRVII & VRV-WII Daikin Europe has achieved a quantum leap forward in commercial air conditioning technology by the introduction of its VRVII, the world’s first R-410A operated variable refrigerant flow system. Available in cooling only, heat pump and heat recovery versions, the new system, which represents a considerable advance over earlier VRV systems, demonstrates Daikin’s innovative application of new technology and the latest HFC refrigerants to its... -
Page 13: Easy And Flexible Design
• VRVII & VRV-WII features Easy and flexible design Total room layout flexibility - VRVII & VRV-WII • VRVII systems are easily adaptable to changes in room layout : extra indoor units can be added to a VRV outdoor unit up to a capacity level of 130%. •... -
Page 14: Longest Refrigerant Piping Run
• VRVII & VRV-WII features Easy and flexible design Longest refrigerant piping run VRVII The ability to sustain refrigerant piping in lengths up to 150m (175m equivalent), allows systems to be designed with level differences of 50m between indoor and outdoor units and 15m between individual indoor units. Thus, even with installations in 15 storey buildings, all outdoor units can be located at rooftop level. -
Page 15: Vrv Pro Selection Programme
, Windows 98 and WindowsNT systems, enables consulting engineers, design and build contractors, property developers and architects etc. to plan a Daikin air conditioning project on a step by step basis, complete with detailed drawings, bills of quantities and costs. -
Page 16: Simple And Rapid Installation
• VRVII & VRV-WII features Simple and rapid installation Short installation time - VRVII & VRV-WII • Thanks to small bore refrigerant pipes and REFNET piping options, the VRVII/VRV-WII piping system can be installed very easily and quickly. • Installation of the VRVII/VRV-WII system can also be implemented floor by floor, so that sections of the building can be put into use very quickly, or enabling the air conditioning system to be commissioned and operated in stages, rather than on final completion of the project. -
Page 17: Modular & Lightweight
• VRVII & VRV-WII features Simple and rapid installation Modular & lightweight • Modular design enables units to be joined together in rows with an outstanding degree of uniformity. • The design of the outdoor units is sufficiently compact to allow them to be taken up to the top of a building in a commercial elevator, overcoming site transportation problem, particularly when outdoor units need to be installed on each floor. -
Page 18: Unified Refnet Piping - Vrvii
REFNET joints and headers (both accessories) can cut down on installation work and increase system reliability. • Compared to regular T-joints, where refrigerant distribution is far from optimal, the Daikin REFNET joints have specifically been designed to optimise refrigerant flow. -
Page 19: Downsizing Refrigerant Piping
• VRVII & VRV-WII features Simple and rapid installation Downsizing refrigerant piping • Reduced piping diameters Use of high efficiency R-410A enables the VRVII to operate on a smaller refrigerant charge to be used, leading to a reduction in liquid and gas pipe diameters. •... -
Page 20: Sequential Start - Vrvii & Vrv-Wii
• VRVII & VRV-WII features Simple and rapid installation 6-10 Sequential start - VRVII & VRV-WII Up to 3 outdoor units can be connected to 1 power supply and can be turned on sequentially. This allows the number of breakers and their capacities to remain small and simplifies wiring (for models of 10Hp or less). -
Page 21: 4-Way Wiring Connection - Vrvii & Vrv-Wii
• VRVII & VRV-WII features Simple and rapid installation 6-15 4-way wiring connection - VRVII & VRV-WII Wiring can be fed from the front panel, both left and right side panels or bottom panel of the outdoor unit. Left Right Front Bottom 6-16... - Page 22 VRV products are not within the scope of the Eurovent certification programme. Daikin Europe N.V. is approved by LRQA for its Quality Management System in accordance with the ISO9001 Daikin equipment is designed for comfort standard. ISO9001 pertains to quality assurance regarding applications.
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