2 M M a i n F E A T U R E S AA. Creating Maximum Comfort 1 Inverter technology 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. This in turn enables individual control of up to 40 indoor units of different capacity and type at a ratio of 50~130 % in comparison with outdoor units capacity. 5 HP outdoor units use inverter control compressors only. 5HP outdoor unit 100% Compressor Capacity Control Inverter Control 210Hz-52Hz 20 Steps 24% Large Load Small 8,10,12HP outdoor unit 14,16HP outdoor unit Compressor Capacity Control 100% 14% Large N 1 Compressor Inverter Control N 2 Compressor 100% Operation Load 210Hz-52Hz + No.2 Compressor 29 Steps N 1 Compressor Inverter Control Small Compressor Capacity Control 100% 10% Large N 1 Compr. Inv. Control N 3 Compressor 100% Operation N 2 Compressor 100% Operation 210Hz-52Hz + No.2 + No.3 Compressor 35 Steps N 1 Compr. Inv. Control N 2 Compressor 100% Operation Load N 1 Compr. Inv. Control Inverter Control Hz - 20 steps Small
3 2 Smart control brings comfort Cooling Suction air temp. VRV SERIES (DAIKIN PID Controls) ON/OFF controlled air conditioner (2.5HP) An electronic expansion valve, using PID control, continuously adjusts the refrigerant volume in respond to load variations of the indoor units. The VRV system thus maintains comfortable room temperatures at a virtually constant level, without the temperature variations typical of conventional ON/OFF control systems. Time Note: the graph shows the data, measured in a test room assuming actual heating load. The thermostat can control stable room temperature at ± 0.5 C from set point. Keeps temperature stable Slow start-up Large temperature difference Smaller temperature difference Set point Non inverter AC Startup time reduced by about 1/3 Repeats hot and cold cycles Inverter AC 3 Less frequent start/stop cycle Capacity 60% 65% 50% 55% on 116+on Frequency 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 since Daikin utilises small 5HP inverter compressors, the influence of harmonics is less than that generated by a single large compressor the use of multiple compressors by Daikin also ensures a 50 % standby facility smaller compressors are cheaper and faster to replace
4 BB. Energy Efficient Solution 1 Low running costs 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. VRV units have the highest COP/EER in the market in the most common operating area 2 Most advanced reluctance brushless DC compressor technology The scroll compressor is driven by the newly developed motor, enabling better performance, higher enery efficiency resulting in higher energy cost savings. 3 HRV - Heat Reclaim Ventilation System Heat and humidity are exchanged between supply and exhaust air, which - brings outdoor air close to indoor air conditions - recovers energy loss - realises considerable reduction of air conditioning capacity The heat exchanger modulates the humidity and temperature of incoming fresh air to match indoor conditions. The balance achieved between indoor and outdoor ambients, enables the cooling/heating load placed on the air conditioning system to be reduced. (heat and humidity are exchanged) Most energy saving solution as smaller indoor units can be selected : - size down of indoor units down to 40 % - payback total VAM system : ±2.5 years* *conditions : outside cooling conditions : 30 C / outside heating conditions : - 8 C inside cooling conditions : 24 C / inside heating conditions : 22 C ventilation per room : 150m 3 /h Ideal modular concept to cope with the fresh air requirements 4 Auto restart capability Even after exceptionally long power failures, the built-in auto restart capability ensures automatic system start up. Since the preset memory is not erased by interruptions in power supply, no programme resetting is necessary.
5 5 Low operation sound level 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. The use of this new technology assembly enables a 16hp unit to be housed in a single casing. Aero spiral fan: Bending the fan blade edge reduces turbulence, resulting in less pressure loss Aero fitting grille: New shape promotes spiral discharge airflow, resulting in reduced pressure loss Capability % 100 Night quiet function (max. -8dBA) During night time, sound level of the outdoor unit can be reduced for a certain period : starting time and ending time can be input 50 Load % 0 58 Operation sound dba 50 Night mode Max. - 8dBA(10HP) Night mode ends 8:00 12:00 16:00 20:00 0:00 4:00 8:00 Night mode starts external signal input to outdoor PCB Notes : This function is available in setting at site. The relationship of outdoor temperature (load) and time shown in the graph is just an example. Water-cooled air conditioning can be acceptable in certain critical areas in which the operating sound of air-cooled air conditioning could be a little intrusive. This results from: - the low operating sound level of the condensing unit - indoor installation capabilities of the unit - custom engineered sound level of the dry cooler Daikin indoor units have very low sound operation levels, down to 25 dba. db(a) Perceived loudness Sound 0 Treshold of hearing - 20 Extremely soft Rustling leaves 40 Very soft Quiet room 60 Moderately loud Normal conversation 80 Very loud City traffic noise 100 Extremely loud Symphonic orchestra 120 Threshold of feeling Jet taking off Daikin indoor units
6 CC. High Reliability 1 N 1 anti-corrosion treatment Special anti corrosion treatment of the heat exchanger provides 5 to 6 times greater resistance against acid rain and salt corrosion. The provision of rust proof steel sheet on the underside of the unit gives additional protection. Improvement in corrosion resistance Corrosion resistance rating Non-treated Anti-corrosion treated Salt corrosion 1 5 to 6 Acid rain 1 5 to 6 An anti-corrosion heat exchanger cutaway view Hydrophilic film Aluminium Heat exchanger Corrosion-resistant Acrylic resin Performed tests : VDA Wechseltest contents of 1 cycle (7 days): 24 hours salt spray test SS DIN hours humidity cycle test KFW DIN hours room temperature & room humidity testing period : 5 cycles Corrosion resistance Cycle Bare aluminium DAIKIN P.E. Kesternich test (SO2) contents of 1 cycle (48 hours) according to DIN50018 (0.21) testing period : 40 cycles Corrosion resistance Cycle
7 DD. Eco Friendly 1 Lowest refrigerant amount in the total system 18 HP Comparable VRF system Total refrigerant amount 100% 160 % in the system* * based on average installation Reduction of 20.5% 2 Dramatic reduction in initial refrigerant charge : 16 HP R-22 R-407C R-410A VRV-K series VRV-K series series Refrigerant charge 100 % 85.6 % 79.5 % 3 Optimised R-410A design 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 VRV product programmes. 4 Less waste and improved re-cycling The lead free, soldered PCB obviates environmental contamination, whilst the recyclable galbarium steel bottom plate is designed to last around 6 times longer than the traditional galvanised base. 5 Refrigerant recovery function The refrigerant recovery function enables all expansion valves to be opened. In this way the refrigerant can be drained from the piping system and stored in the receiver and the condenser.
8 1 Total room layout flexibility 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%. Also, since VRVII heat recovery systems offer simultaneous cooling and heating, existing indoor and outdoor units can continue to provide year round air conditioning from their existing locations, even if office layouts are altered or extended. EE. Easy and Flexible Design Meeting room 2 Office Meeting room Reception room Stock room Complete flexibility Office Meeting room ROOM LAYOUT CHANGE INDOOR UNIT ADDITION Meeting room The VRVII / VRV-WII systems enables different floors or even rooms to be rented to different customers, because each room has independent control of its air conditioning. Thanks to inverter technology, as many as 40 indoor units (32 indoor units for VRV-WII) with different types and capacities can be installed in one system. This system automatically and effectively controls each unit to provide individual rooms of different sizes with a comfortable working or living environment. 3 Year round cooling and/or heating Designed to provide simultaneous year round cooling and/or heating, VRVII heat recovery systems are modular in concept and are therefore, ideal for use in rooms or zones that generate varying thermal loads according to building orientation or local hot or cold spots. It is possible for the same meeting room to give rise to differing thermal loads depending on the time of day, number of occupants present, location and usage pattern of lighting and electronic office equipment. Until the advent of the VRV, a complex 4-pipe fan coil was needed to meet this requirement. The VRV however, is easier to design and install and in its heat recovery format, can conserve energy in two or more rooms at the same time. The colder it is outside, the warmer it needs to be indoors, which means that the capacity of the air-cooled outdoor unit drops. Water-cooled air conditioners are not subject to this problem. The boiler ensures that sufficient enough additional heat is always available indoors.
9 EE. Easy and Flexible Design 5 VRV Pro selection programme A simple to use, Daikin computerised selection programme, designed for use with Windows 95, 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. The programme thus enables VRV air conditioning systems to be engineered precisely and economically (without over-sizing units), thereby ensuring optimum operating cycles and maximum energy efficiency. Features : the VRV Pro selection programme offers 3 separate modes to accommodate different design formats according to customer requirements. Multi languages are possible. 1. Expert mode : once the cooling and heating loads in the different rooms have been calculated, the software will select the most appropriate system plus an estimate of the power consumption 2. Quick mode : based on calculated system loads, the software will select the most appropriate system 3. Drawing mode : selecting the indoor and outdoor units from a list enables the user to design a system in no time at all AutoCAD and scanned drawings can be used to help draw up a floor plan piping diameters can be automatically calculated indoor and outdoor units, headers and joints etc can be automatically selected Windows95, Windows98 and WindowsNT are registered trademarks of Microsoft corporation. 6 VRV Xpress This new super rapid response VRV selection tool is easy to understand, easy to use and enables automated piping and wiring diagrams of up to 3MB to be transmitted via e mail. The package comes complete with single file software and update, requires no installation or drawings and is available in multi language options.
10 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 VRV product programmes. Many new features and installation benefits are incorporated in VRV II. Its operating range for example 5hp, then 8hp to 48hp in 2hp increment steps (22 system combinations), is wider than any of its contemporaries. Furthermore, its ability to run no less than 40 indoor units in heat recovery as well as heat pump format cannot at present be matched by other comparable systems. The ability to control each conditioned zone keeps VRVII system running costs to an absolute minimum. Furthermore, only those areas calling for air conditioning need to be cooled or heated and the system can be shut down completely in unoccupied rooms. Modular design enables Daikin VRVII outdoor units to be joined together in rows with an outstanding degree of uniformity. The design of the outdoors units is sufficiently compact to allow them to be taken up to the top of a building in a commercial elevator, overcoming site transportation problems.
11 RXQ-M9 Inverter cooling only new 5HP 8,10HP COOLING ONLY OUTDOOR UNIT Equivalent horsepower HP Number of outdoor units Minimum capacity index Maximum capacity index Cooling capacity Power input EER Dimensions Height mm Width mm Depth mm Weight kg Sound pressure level db(a) Sound power level db(a) Air flow rate m 3 /min Operation range CDB Number of connectable indoor units Refrigerant type Power supply W1 RXQ5M9W1B RXQ8M9W1B RXQ10M9W1B ,600 1,600 1, ~ R-410A 3N~, 50Hz, 400V
12 RXYQ-M9 Inverter heat pump new 18,20HP 28,30,32HP 38,40,42HP HEAT PUMP OUTDOOR UNIT Nominal cooling capacity Nominal heating capacity Power input cooling heating EER cooling COP heating Dimensions height mm width mm depth mm Weight kg Sound pressure levels db(a) Sound power level db(a) Air flow rate m 3 /min Operation range cooling CDB heating CWB Refrigerant type Power supply W1 RXYQ5M9W1B RXYQ8M9W1B RXYQ10M9W1B RXYQ12M9W1B RXYQ14M9W1B RXYQ16M9W1B ,600 1,600 1,600 1,600 1,600 1, ,240 1,240 1, ~ ~ 15.5 R-410A 3N~, 50Hz, 400V RXYQ-M9 Modules HEAT PUMP RXYQ5M9 RXYQ8M9 RXYQ10M9 RXYQ12M9 RXYQ14M9 RXYQ16M9 Equivalent horsepower HP Number of outdoor units Number of compressors Minimum capacity index Maximum capacity index Cooling capacity Heating capacity Power input Cooling Heating EER Cooling COP Heating Dimensions Height mm Width mm Depth mm Weight kg Number of connectable indoor units , , ,0 22,4 28,0 33,5 40,0 44,5 50,4 56,0 61,5 68,0 73,0 78,5 85,0 90,0 96,0 101,0 106,5 113,0 118,0 123,5 130,0 135,0 16,0 25,0 31,5 37,5 45,0 50,0 56,5 63,0 69,0 76,5 81,5 87,5 95,0 100,0 108,0 113,0 119,0 126,5 131,5 137,5 145,0 150,0 4,14 5,92 8,01 9,16 13,40 16,00 13,93 16,02 17,20 21,40 24,00 25,20 29,40 32,00 29,40 32,00 33,20 37,40 40,00 41,20 45,40 48,00 3,71 6,06 7,65 9,20 11,70 13,20 13,71 15,30 16,90 19,40 20,90 22,40 24,90 26,40 27,00 28,50 30,10 32,60 34,10 35,60 38,10 39,60 3,38 3,78 3,50 3,66 2,99 2,78 3,62 3,50 3,58 3,18 3,04 3,12 2,89 2,81 3,27 3,16 3,21 3,02 2,95 3,00 2,86 2,81 4,31 4,13 4,12 4,08 3,85 3,79 4,12 4,12 4,08 3,94 3,90 3,91 3,82 3,79 4,00 3,96 3,95 3,88 3,86 3,86 3,81 3,
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