VRV IV - Daikin KSA Daikin
VRV IVSets the Standard. AgainVRV IV heat pump and water cooled systemsHigh Ambient
Why choose DaikinOur promise is to ensure that your customers can depend on Daikin for theultimate in comfort, so that they are free to focus on their own working andhome lives.We promise to dedicate ourselves to technological excellence, a design focusand the highest quality standards so that your customers can trust and rely onthe comfort we deliver.Our promise to the planet is absolute. Our products are at the forefrontof low energy consumption and we continuously innovate to reduce theenvironmental impact of HVACR solutions further.We lead where others follow. We will continue our global leadership in HVACRsolutions as our specialist expertise in all market sectors combined with 90years’ experience enable us to deliver added value in long-lasting relationshipsbased on trust, respect and credibility.
Table of contentsNEW ieserW-sVRV IV standard & technologies08Ben18Outdoor units20Indoor units21Ventilation and Air Handling22Control Systems24Specifications3903UNIQUmini B EMS
Over 30 years ofVRV History1987Introduction the original VRV airconditioning system to Europe,invented by Daikin in 198219982004Launch inverter series withR-407C›-Expand to light commercial sector withVRVII-S›››2008Launch of heat pumpoptimised for heating(VRV III-C)› Extended 419982004200320052003Introduce VRVII-- the first R-410AVRF systemAvailable in cooling, heat pump andheat recovery1991Introduce VRV heatrecovery› Simultaneous cooling andheating1994›refrigerant circuitAwarded ISO9001 certification042005Extends VRVII inverterrange with water cooledVRV-WIII› Available in heat pump andheat recovery2006-200720052004
20092011Extends VRVIII rangewith water cooled VRV-WIII› Geothermal version availableLaunch total solution concept› Integrate hot water production andBiddle air curtains into VRV system› Connectable to Daikin Emura andNexura›2015Launch of VRV IV S-series› Most compact unit in the market› Widest range in the market››06-2007 200920082010200920112010201220112015 201220152006-2007Launch the extensivelyre-engineered VRVIII› Available in cooling, heatpump and heat recovery› Automatic charging andtesting›2010Launch of replacement VRV(VRVIII-Q)› Upgrade to replace older VRV units2012-2014Setting new standards with thelaunch of VRV IV›Continuous›heating on heat pumps› Available in heat pump, heatrecovery, water-cooled andreplacement series052015Launch of VRV IV i-series› The invisible VRV› Unique product conceptVRV IV High Ambient
VRV IV standard &technologiesOur new VRV IV systems set pioneeringstandards in all-round climate comfortperformance. Total design simplirapid installation, full exibility as well asabsoluciency and comfort. Find outabout all these revolutionary changes atwww.daikinmea.com06
VRV IV s d r a dVariable Refrigerant TemperatureRefrigerant-cooled PCB unique VRV IV core technologiesNewly developed inverter compressor4-side heat exchangerPredictive controlOuter rotor DC fan motor07n
Variable refrigeranttemperaturey r a n› Seasonal e ciency increased by 28%›t weather compensating control on themarket› Customer comfort is assured thanks to higheroutblow temperatures (preventing colddraughts)How does it work?VRF standardCapacity is controlled only with the variance of theinverter compressorDesign pointSystemcapacitya t sCooling requirementCapacity & Loadin cooling modeThanks to its revolutionary variable refrigeranttemperatue technology (VRT), VRV IV continuouslyadjusts both the inverter compressor speed and therefrigerant temperature, providing the necessarycapacity to meet the building load with the highestseasonal efficiency at all times!The colder it gets, the lower the load on the building and the lower the capacity needAdjust capacity byTe control to meetthe load (avoid overcapacity and ON/OFFoperation)o i t u l o v e r25303846Outdoor temperatureThe lower the capacity need the higher the refrigerant temperature can beRefrigerant temperature incooling (evaporating temperature)Customise your VRV forbest seasonal efficiencyand comfortVariable TeFixed Te25Daikin VRV IVVariable Refrigerant Temperature control for energysaving in partial load condition.The capacity is controlled by the inverter compressorAND variation of the evaporating (Te) and condensing (Tc) temperature of the refrigerant in order toachieve the highest seasonal efficiency.303846Outdoor temperatureEfficiencyA higher refrigerant temperature results in a higherseasonal e ciency and higher comfortE ciency up2530Variable Temp.Fixed Temp.083846Outdoor temperature3
Different modes tomaximise efficiencyand comfortFor maximum energy efficiency and customersatisfaction, the outdoor unit needs to adaptthe evaporating/condensing temperature at theoptimum point for the application.How to setthe different modes?Set up the main operation modeof the systemStp at e ntsStAutomatic*Quick reaction speedTop efficiencyThe perfect balance:Achieves top efficiency throughout the year,reacts quickly on the hottest daysHigh sensible(User selection)Quick reaction speedDefine how the system reactsto changing loadsWhere a quick increase of load is expected such as conference rooms.Quick reaction speed to changing load has priority, with temporarily colderoutblow as a result.PowerfulQuickSame as above but slower response than the powerful mode.Mild *This mode would be suitable for most o ce applicationsand it is the factory set mode.The perfect balance: Slower reaction speed with top e ciencyGives customer choice for fixing coil temperature which avoids cold draughts.A quick reaction speed to changing load has priority, with temporarily colderoutblow as a result.PowerfulQuickSame as above but slower response.MildThe air o temperature remains fairly constant.Suitable for low ceiling rooms.EcoCoil temperature would not change due to fluctuating load.Suitable for computer rooms. Suitable for low ceiling rooms.Top efficiencyYear round top efficiencyBasicCurrent VRF standardThis is how most other VRF systems work and can be used for all general type ofapplications. Suitable for computer rooms.Suitable for low ceiling rooms.No submodes* Factory setting09
Software for simplifiedcommissioning,configuration andcustomisation10
VRVconfigurator softwareGraphical interfaceManage systems over multiple sites in exactlythe same wayRetrieve initial settingsSimplified commissioningSimplified servicingThe VRV configurator is an advanced softwaresolution that allows for easy system configurationand commissioning.Less time is required on the roof to configure theoutdoor unitMultiple systems at different sites can be managedin exactly the same way, providing simplifiedcommissioning for key accountsInitial settings on the outdoor unit can be easilyretrievedThe user-friendly display for outdoor units simplifiesbasic servicing tasks.Easy-to-read error reportEasy-to-understand menu indicates quick and easyon-site settingsEasy-to-follow parameters for checking basicfunctions: high pressure, low pressure, frequencyand operation time, compressor history,temperature of discharge/suction pipe.-digitdisplayConnect directlyto your laptopPre configuredsettings from officeUser-friendly interfaceinstead of push buttons11egment
Unique VRV IVcore technologiesNewly developedcompressorpatentsFull inverterHigh e ciency J-t› Enabling variable refrigerant temperature›and low start-up currents› Stepless capacity controlole motorronger magnetic field andhigher rotation efficiencyReluctance brushless DC motorThixocasting process› Increased efficiency compared to› Compression volume is increased bAC motors by simultaneously usingnormal and reluctance torque› Powerful neodymium magnetsefficiently generate high torque› High-pressure oil reduces thrust lossesto a new high-durability material cast in a semimolten stateRefrigerant-cooled PCB› Reliable cooling because it is not influenced byambient air temperature› Smaller switchbox for smoother air flowthrough the heat exchanger increasingheat exchange efficiency by 5%patents4-sided, 3-row condensercoil› Condenser coil sur face up t› (up t), leading trgerreefficiencypatents12
UNIQUEWastecompressoroperationTargetPredictive ControlFunction (PCF)› Reaches the target capacity/refrigerant temperaturefaster› Reaches the target without overshooting, so there isno waste, leading to improved efficiency› Three capacity settings give more precise controlfor user comfortThe large number of Daikin systems already in operationand which are monitored by our Intelligent Networksoftware put us in the unique position of being able toanalyse this data and develop the predictive compressorcontrol function.General VRF:Double time against VRV IVt(general VRF)t(VRV IV)VRV IV with PCFGeneral VRF with PI controlTarget capacity/refrigerant temperatureVRV IV: PCFCompressor works with predictive data for the control›Half timeagainstgeneralVRFresult: quick convergence to the target temperatureand reduction of waste operation of the compressorGeneral VRF: Pi controlCompressor works with feedback only for the control›result: waste operation and longer time before reachingtarget set pointDC fan motorUNIQUEOuter rotor DC motor for higher e ciencyConventional motor with inner rotorDaikin outer rotor› Larger rotor diameter results in greaterforce for the same magnetic field,leading to better efficiency› Better control, resulting in more fansteps to match the actual capacitySine wave DC inverterFFOptimizing the sine wave curve results in smoothermotor rotation and improved motor efficiency.RotorDC fan motorStatorStatorRotorThe use of a DC fan motor offers substantialimprovements in operating efficiency compared toconventional AC motors, especially during low speedrotation.E-Pass Heat ExchangerOptimising the heat exchanger’s path layout preventsheat being transferred from the overheated gassection to the sub-cooled liquid section which is amore efficient way to use the heat exchanger.Standard heat exchangere-Pass heat exchangerInIn C C C C CI-demand function C C C C C C CPower consumptionPredefined limitLimit maximum power consumption.The newly introduced current sensor minimizesthe difference between the actual powerconsumption and the predefined powerconsumption.Time13
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Daikin Anti-Corrosion Solutionsfor maximum peace of mindFor prolonged lifespan of the condenser coil and other components with Anti-Corrosion Protection coating,the following recommendations for care and maintenance should be followed:The Do’sThe Don’ts› Regular washing of the condenser coil withfresh water (bi-monthly)› Use unknown chemical or acidic basedsolution› Clear all unwanted debris and dirt deposits› Scratches or crack the anti-corrosion protec-within the unittion coating› Touch up any rusty parts / components› Direct contact with sea water or coastal sand› Escalate the maintenance frequency whenequipment is near the vicinity of a coolingtower› Leave any debris on the bottom tray› Handle equipment with care to preventscratches on the protection coatingInstallation and Precaution› It is important that the equipment is not installed directlyexposed to sea water› Avoid sandy location, i.e. near the shore and windy areas› Select a well-drained location› Extra care is needed during hoisting and handling toprevent any scratches on the anti-corrosion protectioncoating› No sharp material to be used during the handling› In case of prolong storage at site before operation, wesuggest to protect the equipment with the existingpacking box material prior to handing over.› Clear all unwanted debris/drilling metal particles on thebottom tray and base leg after installation work toprevent any scratches or cracks onto the anti-corrosionprotection coating that will cause rust formation› In situation where the unit is installed close to coastal areaand exposed to strong breeze, it is important to install awindbreaker or retaining wall to prolong the life span ofthe equipment protection coating.Example of Condenser Unit Installed at Poor Site ConditionSandy LocationCoastal sand stuck in betweenprotection coating.Rooftop with Strong Sea BreezeStrong sea breeze blowing directly tocoil can shorten the life of the coil.15Enclosed Area and Sea Water SplashingConditionSea water splashing directly to the coil causes
ECPEN15-206A.indd 424/03/15 11:47Anti Corrosion TreatmentAn anti-corrosion heat exchanger cutaway viewHydrophilic filmSpecial anti corrosion treatment of the heat exchangerprovides 5 to 6 times greater resistance against acidrain and salt corrosion.The provision of rust proof steel sheet on the undersideof the unit gives additional protection.AluminiumCorrosion-resistantAcrylic resinHeat exchangerDegreeof corrosionPerformed tests:876543210› VDA Wechseltest›››1›234Bare aluminium5CycleDAIKIN P.E.Degree ofcorrosion10Kesternich test (SO2)987›654›321012345610203040506070CycleThe total solutionTypically, many buildings today rely on severalseparate systems for heating, cooling & air curtainAs a result energy is wasted. To provide a muchmore e cient alternative, VRV technology has beendeveloped into a total solution managing up toof a buildings energy consumption giving largepotential to cost saving.› Heating and coolingfor year round comfort› VentilationHeatingfor high quality environmentsCooling› Controlsfor maximum operating efficiencyControlsVentilationFresh Air16
ECPEN15-206A.indd 524/03/15 11:47One system,multiple applications for hotels,offices, retail, home Heating and cooling› Combine VRV indoor units (13 line-ups)22› New round flow cassette sets thestandard for efficiency and comfort with presencesensor.› New slim medium static pressure duct unit.Intelligent control systems› Mini BMS with connects Daikinand third-party equipment› Integrate intelligent control solutions with energymanagement tools to reduce running costsVentilation› Widest range in DX ventilation – AHU units› Provides a fresh, healthy and comfortableenvironment17
ECPEN15-206A.indd 824/03/15 11:48What does aVRV IV installationmean to you?See how you can profit fromDaikin’s highly flexible andefficient product range.ConsultantsDaikin's VRV IV technology maximises flexibility andleads the way in customisation to match individualbuilding requirements in comfort and energy, withreduced running costs.Technical design supportEcological design meets andexceeds legal requirementsMaximum flexibility to meet customer requirementsAdvanced software tools assist with system designComplies with ESMA UAE regulationsComplies with MEW-Kuwait regulationsComplies with SASO Saudi regulationsBuilding ownersVRV IV is the ultimate in customised comfort andintelligent control tailored to your individual needsand to maximise energy efficiency. Annual costsavings up to % (compared to VRV III).Up to 40% energy consumption saving over conventional AC SystemSingle point of contact for the design andmaintenance of your climate systemIntegrated system, combining air conditioning,ventilation, etc. allows maximum energy efficiencyMultiple systems can be managed in exactlythe same way for the key accountsDedicated after-sales service toensure fast on-site supportInstallersDaikin VRV IV sets the standard with state-of-the-arttechnology and time-saving commissioning andservicing.Simplified and time-saving commissioningwith VRV configuratorWide range of outdoor units (up to 48HP)One supplier one point of contactMaximum flexibility to meet customer requirementsCustomised training to maximise expertise18
ECPEN15-206A.indd 924/03/15 11:48VRV OutdoorOut door units can be single units or combined in multiple units as a modulefor larger capacity applications19
ECPEN15-206A.indd 1024/03/15 11:48Outdoor unitsVRVIV-SseriesRXYTQ-T››››Covers all thermal needs of a building via a single point of contact: accuratetemperature control, ventilation, air handling unitsConnect VRV indoor unitsIncorporates VRV IV standards & technologies such as Variable 0Hz-6HPP (60Hz)20RXYSQ-T
ECPEN15-206A.indd 1124/03/15 11:48Indoor unitsProducts overviewCapacity classCeiling mounted cassetteType ing unitConcealed ceilingNEWConcealedceiling unitwith mediumESPConcealedceiling unitwith high ESP140 PaConcealedceiling unitwith high ESPFloor standingCeiling suspended Wall mountedConcealedceiling unitwith high gunitNEWConcealedstandingunitProduct name››››Auto cleaning function ensures high e ciencyIntelligent sensors save energy and maximize comfortFlexibility to suit every room layoutLowest installation height in the market!FXFQ-A›››››Perfect integration in standard architectural ceiling tilesBlend of iconic design and engineering excellenceIntelligent sensors save energy and maximize comfortSmall capacity unit developed for small or well-insulated roomsFlexibility to suit every room layoutFXZQ-A›››››Compact dimensions enable installation in narrow ceiling voidsOnly grilles are visibleSmall capacity unit developted for small of well-insulated roomsReduced energy consumption thanks to DC fan motorFXDQ-ASlimmest yet most powerfull medium static pressure unit on the market!›››Low operating sound level›varying lengthsFXSQ-A›Optimum comfort guaranteed no matter the length of ductwork or type of››Reduced energy consumption thanks to DC fan motorFlexible installation as the air suction direction can be altered from rear tobottom suction›››140 Pa,Optimum comfort guaranteed no matter the length of ductwork or type ofReduced energy consumption thanks to DC fan motorFlexible installation as the air suction direction can be altered from rear tobottom suction››Only grilles are visible››››Flat, stylish front panel is more easy to cleanSmall capacity unit developted for small of well-insulated roomsReduced energy consumption thanks to DC fan motor›››››FXMQ-PVE28kW cooling capacityFXMQ-MAFXAQ-PVER1FXAQ-PVEdischarge anglesectCan easily be installed in both new and refurbishment projectsCan even be mounted in corners or narrow spaces without any problemReduced energy consumption thanks to DC fan motorFXHQ-AFor perimeter zone air conditioning› Can be installed in front of glass walls or free standing as both the front and›››Ideal for installation beneath a windowRequires very little installation spaceWall mounted installation facilitates cleaning beneath the unitFXLQ-PIdeal for installation in o ces, hotels and residential applications› Discretely concealed in the wall, leaving only the suction and discharge grillesvisible› Can even be installed underneath a window››FXNQ-ACooling capacity (kW)1.7 2.2 2.8 3.6 4.5 5.6 7.1 8.0 9.0 11.2 14.0 16.0 22.4 28.0 45.0 56.0Heating capacity (kW)1.9 2.5 3.2 4.0 5.0 6.3 8.0 9.0 10.0 12.5 16.0 18.0 25.0 31.5 50.0 63.021
Ventilation rangeoverviewFive components ofindoor air qualityVentilation: ensures the provision of fresh airHeat recovery: recovers heat and moisture fromAir processing: heats or cools incoming fresh airmaximising comfort and minimizing the load onthe air conditioning installationoptimises the balance betweenindoor and outdoor humidityFiltration: removes dust, pollution and odours fromthe airVentilationHeat recoveryAirprocessingHumidi cationFiltration/hr )Type32,000Product nameComponents ofindoor air qualityHeat reclaimventilationVAM-FCAir handlingunitsDX total freshair packageVentilationHeat recoveryVentilationHeat recoveryAir processingFiltration22
Air handling unit applicationsWhy use VRV condensing units for connectionto air handling units?HighciencyThe majority of time the AHU will be in cooling mode. By combining a heat wheel with the AHU, energy bills can be reducedby recovering the cool air exhausted to the atmosphere. Where heating is required in winter condition we can simplypackage with a Daikin heat pumps which are renowned for their high efficiency. Fresh air can be heated in cases where theair is too cold to be supplied untreated.Outside air 46 CFresh air supplied at 21 C. Thetemperature difference withthe outdoor air is pre - cooledby the heat wheel.Fast response to changing loads resultingin high comfort levelsEasy Designand InstallationDaikin VRV units respond rapidly to fluctuations insupply air temprerature, resulting in a steady indoortemperature and resultant high comfort levels for theend user. The ultimate is the VRV range combinedwith an AHU designed to provide the perfect indoorcondition while reducing running cost with theMiddle East year round cooling demand.The system is easy to design and install sinceno additional water systems such as boilers,chillers, buffer, tanks and gas connectionsetc. are required. This also reduces both thetotal system investment and running cost.Daikin Fresh air packageVRV IVcondensing unit(single or multi)gasliquidFactory fitted and weldedfresh air packageCapacity:Up to 269 kW (Nominal Capacity) - by 4x24 HP OU.Expansion valveElectronic interface(EKEXV)(EKEQ)Expansion Value Sizes: 50 - 63 - 80 - 100 - 125 - 140 - 200 - 250 - 400 -50023
ECPEN15-206A.indd 1224/03/15 11:48In order to maximize installation flexibility,4 types of control systems are offeredControl y: Control of refrigerant (Te/Tc) temperature via Daikincontrol (no DDC controller needed) with 3rd party thermostat(Daikin control for field settings and error indication)Control z: Control of air temperature (suction temperature, roomtemperature) via Daikin control (no DDC controller needed)Control w: Off the shelf control of air temperature (dischargetemperature, suction temperature, room temperature) via anyDDC controller using a proportional 0 10V algorithm for capacitycontrolControl x: Precize control of air temperature (dischargetemperature, suction temperature, room temperature) requiring apreprogrammed DDC controller (for special applications) using aproportional 0 10V algorithm for capacity controlPossibility W (Td/Tr control):Possibility X (Td/Tr control):Air temperature control via DDC controllerRoom temperature is controlled as a function of the air handlingunit suction or discharge air (customer selection). The DDCcontroller is translating the temperature difference between setpoint and air suction temperature (or air discharge temperature orroom temperature) into a proportional 0-10V signalwhich is transferred to the Daikin control box (EKEQFCBA).This voltage controls the compressor frequency.TsDDCTePrecise air temperature control via DDC controllerRoom temperature is controlled as a function of the air handlingunit suction or discharge air (customer selection). The DDCcontroller is translating the temperature difference between setpoint and air suction temperature (or air discharge temperatureor room temperature) into a reference voltage (0-10V) which istransferred to the Daikin control box (EKEQFCBA). This referencevoltage will be used as the main input value for the compressorfrequency control.TsTdAHUDaikincontrol box:EKEQFCBATrDDCRoomPossibility Y (Te/Tc control):TeTdAHUDaikincontrol box:EKEQFCBATrRoomPossibility Z (Ts/Tr control):By fixed evaporating /condensing temperatureA fixed target evaporating temperature of between 3 C and12 C can be set by the customer. In this case, room temperature isonly indirectly controlled. The cooling load is determined fromthe actual evaporating temperature (i.e. load to the heatexchanger). A Daikin infrared remote control (BRC1D52 orBRC1E52A/B - optional) can be connected for error indication.Control your AHU just like a VRV indoor unit with 100% fresh air(BRC1D52 or BRC1E52A/B - optional)Set point can be fixed via standard Daikin infrared remote control.Remote ON/OFF can be achievedby an optional adapter KRP4A51.No external DDC controller should be connected. The cooling load isdetermined from the air suction temperature and set point onthe Daikin controller.ON / OFFKRP4A51Daikincontrol box:EKEQFCBAAHUTeTsTrTsTdDaikincontrol box:EKEQDCBEKEQMCBRoomBRC1D52BRC1E53AOption kitPossibility wPossibility xEKEQFCBAPossibility yPossibility 81(9)Ts Air suction temperatureTr Room temperatureAHU Air Handling UnitTd Air discharge temperatureTe Evaporating temperatureDDC Digital Display ControllerFeaturesDDC controller is requiredtemperature control using air suction or air discharge temperatureDDC and Microtech controller is requiredPrecise Temperature control using air suction or air discharge temperatureUsing fixed evaporating temperature, no set point can be set using remote controlorUsing Daikin infrared remote controlTemperature control using air suction temperature* EKEQMCB (for ’multi’ application)24
BRC1H81(9)
Experiencea new wayof air conditioning control andcommissioningWhiteBRC1H81(9)WUser-friendly wired remote controllerwith premium designA complete redesigned controllerfocused to enhanceuser experience Sleek and elegant design Intuitive touch button control Compact, only 85x85mm Advanced settings and commissioning via smartphone26
Advanced settings can be easily done viayour smartphone BLE (Bluetooth Low Energy) communication Visual interface for intuitive setting of schedules, set point restriction and other advanced settings forusers / technical managers Easy and time saving commissioning for installersScheduleAdvanced user settingsInstaller settings27Field settings
Individual control systemsBRC1H81(9)WUser-friendly wired remote controllerwith premium design for Sky Air and VRVA complete redesigned controller focussedto enhance user experienceBRC1H81(9)W› Sleek and elegant design› Inuitive touch button control›››› Real time clock with auto update to daylight saving time› BRC1H81(9) model equipped with a buzzerHotel application functions›› Flexible setback function ensures room temperature remains within comfortable limits to ensure guestcomfortKey card andwindow contactintegrationAdaptorWindow contactBRC1H81(9)WAdvanced settings can be easily done via your smartphoneA series of energy saving functions thatcan be individually selectedOther functions›› Temperature range limit› Setback function›so the user can easily change the schedule himselfthroughout the year (e.g. Summer, winter, mid-season)› Possibility to individually restrict menu functions›› Set temperature auto reset›Temperature range limit avoids excessiveheating or coolingSave energy by constraining the lower temperaturelimit in cooling and upper temperature limit inheating mode.note : Also available in auto cooling/heating change over mode.28
Individual control systemsBRC4*/BRC7*Infrared remote controlOperation buttons: ON / OFF, timer mode start / stop, timermode onsign reset (2), inspection (2)/ test indication (2)Display: Operating mode, battery change, setspeed, inspection / test operation (2)For all features of the remote control, refer to the operation manualBRC1D52Wired remote control for Sky Air and VRVDisplay› Schedule timer:Five day actions can be set as follows:- set point: unit is switched ON and normaloperation is maintained- limits: unit is switched ON and min./max. control(cf. limit operation for more details)› Home leave (frost protection): during absence, theindoor temperature can be maintained at a certainlevel. This function can also switch the unit ON/OFF› User friendly HRV function, thanks tothe introduction of a button for ventilation modeand fan speed› Immediate display of fault location and condition› Reduction of maintenance time and ing modeHeat Recovery Ventilation (HRV) in operationCool / heat changeover controlCentralised control indicationGroup control indicationSet temperatureProgrammed timeInspection test / operationFan speedDefrost / hot startMalfunctionNEW BRC1E53AUser friendly remote control with contemporary designfor Sky Air and VRVA series of energy saving functions thatcan be individually selected› Temperature range limit› Setback function›Other functions›› Set temperature auto reset››››Temperature range limit avoids excessiveheating or cooling››so the user can easily change the schedule himselfthroughout the year (e.g. Summer, winter, mid-season)Possibility to individually restrict menu functionsEasy to use: all main functions directly accessibleNEW Choice of display between symbol or textEasy setup: clear graphical user interface foradvanced menu settingsNEWwhen no person is changing mode or adjustingsettingsReal time clock with auto update to daylightsaving timeBuilt-in backup power: when a power failure occursSave energy by constraining the lower temperaturelimit in cooling and upper temperature limit inheating mode.›note : Also available in auto cooling/heating change over mode.› Supports multiple languages:Italian, PortugeseRomanian, Slovenian,BulgarianSlovak, Albanian29
BRC2E52A / BRC3E52ASimplified wired remote control developed for hotel applications››››Symbol driven interface for intuitive controlFunctions restricted to basic customer needsContemporary designEnergy saving thanks key card, window contact› Flexible setback function ensures roomtemperature remains within comfortable limits toensure guest comfort› Flat backpanel for easy installation› Easy commissioning: intuitive interfacefor advanced menu settings› ON/OFFWith operation mode selectorKey card andwindow contactintegrationAdaptatorWindow contactWithout operation mode selectorCentralised control systemsCentralised control of the Sky Air and VRV system can be achieved via 3 user friendly compact remotecontrollers. These controls may be used independently or in combination with 1 group several (up to 16)indoor units in combination and 1 zone several groups in combination.A centralised remote control is ideal for use in tenanted commercial buildings subject to random occupation,The schedule timer programmes the schedule and operation conditions for each tenant and the control caneasily be
Daikin VRV IV Variable Refrigerant Temperature control for energy saving in partial load condition. The capacity is controlled by the inverter compressor AND variation of the evaporating (Te) and condens-ing (Tc) temperature of the refrig
Daikin VRV Sizing & Simulation Plug-in User Guide IES Virtual Environment 2013 . . The selected condenser displays the Daikin model reference, when multiple VRV systems have been created, click each condenser in turn to view the associated fan coil information in the System & Fan Coil . VRV module will re-select the required sized units.
2.2 Overview of Kingdom of Saudi Arabia (KSA) 29 2.2.1 The History of KSA 30 2.2.2 The Tradition and Culture in KSA 30 2.2.3 KSA’s Political System 31 2.2.4 The Role of Religion in KSA 32 2.3 The Saudi Arabian Economy 34 2.3.1 The Role of KSA i
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3. Hi-VRV The complete air conditioning system 44 Variable Refrigerant Volume 46 VRV Inverter heat pump series 46 VRV Heat recovery series 47 VRV Plus series using R-407C 48 VRV Plus series using R-22 49 VRV Indoor units 50 Heat Recovery Ventilation 57
VRV IV HP VRV IV HR ASHRAE 90.1 2016 Air Cooled HP ASHRAE 90.1 2016 Air Cooled HP. 7. SYSTEM OVERVIEW. Simple Modular Design. The Features of . VRV. Features & Benefits to Using . VRV . The benefits of . VRV. equipment can be categorized by three core features: Drei ct expansoi n systems (those . that use refrigerant to directly . condition the .
VRV Air Conditioning System is the world's first individual air conditioning system with variable refrigerant flow control and was commercialised by Daikin in 1982. VRV is the trade mark of Daikin Industries, Ltd., which is derived from the technology we call "variable refrigerant volume." VRV is a trade mark of Daikin Industries, Ltd. S
VRV Air Conditioning System is the world's first individual air conditioning system with variable refrigerant flow control and was commercialised by Daikin in 1982. VRV is the trade mark of Daikin Industries, Ltd., which is derived from the technology we call "variable refrigerant volume." VRV is a trade mark of Daikin Industries, Ltd. Dealer
VRV-WIII › Availableinheatpumpand heat recovery 1987 Introduction the original VRV air conditioning system to Europe, invented by Daikin in 1982 › Ex 1991 Introduce VRV heat recovery Simultaneous cooling and heating 1994 Awarded ISO9001 certification 2004 Expand to light commercia
