VRV T-Series WATER-COOLED SYSTEMS - Daikin Latam

11.17VRV T-SeriesWATER-COOLEDSYSTEMS

Why Consider a Daikin VRV T-SeriesWater Cooled System?One Flexible PackageThe Daikin VRV T-Series Water Cooled is a flexible and modular energy saving alternative to traditional centralized equipmentsolutions such a Chilled Water System or Water Source Heat Pumps (WSHP).The VRV T-Series Water Cooled provides all of the attributes of an Air-cooled VRV system such as low sound levels, advanced comfortcontrol and zoning but with the added application flexibility for cold climates, buildings with an existing water loop infrastructure orgeothermal applications.The long piping capabilities, small refrigerant pipes, compact condensing unit size and ability to take advantage of building diversityand 2-stage heat recovery provide great flexibility in applying the solution to your building whether existing or new constructions.This aids in reducing the overall construction complexity compared to traditional water based systems and helps optimize the totalcost of construction.VRV is built upon 4 basic “Building Blocks” — CondensingUnit, Indoor Unit, Piping, and Controls — providing theattributes of a central chilled water system but with the simplicityof a split system.IndoorUnitThis enhanced system offers energy-efficient and comfortablecooling and heating for many types of applications such as offices,hotels, high-rise buildings and large commercial applications.PipingControlsCondensing UnitVRV T-Series Water Cooled Main Features›› Flexible System design with increased diversityup to 150%*›› Can be applied to both geothermal and boiler/towerapplications as standard with condenser water inlettemperature as low as 14 F* in heating and 23 F* incooling is possible›› Triple-stack capable to deliver up to 36 tons injust under 11 feet ceiling height thanks to thecompact design* Conditions/rules apply. Refer to Installation andEngineering Manual for further details.›› Engineered with heat rejection cancellationtechnology* to eliminate mechanical roomconditioning requirements›› 2-9V variable water flow control logic* as standard toincrease waterside system operational efficienciescompared to previous models›› Drop-down electrical box for easy service tokey components›› Field selectable top or front refrigerant connectionsfor flexible and easy �›››OfficesHotelsHigh-rise buildingsMulti-family complexesShopping mallsOther largecommercialapplicationsVRV T-Series Water Cooled3

What is Daikin VRV T-Series Water Cooled?OverviewCOMMERCIALThe VRV T-Series Water Cooled offers an energy savingalternative to traditional centralized equipment. The systemdesign is based on a modular design concept. It is composedof unified condensing units that require simply connecting a2-pipe refrigerant network for heat pump applications or a3-pipe refrigerant network for heat recovery applications. Thecondensing units are conveniently compact, which not onlyenables transport by elevator possible, but also effectivelysimplifies installation in mechanical rooms. This also savesa great deal of time and labor labor when compared totraditional water based equipment.VRV Water Cooled systems are equivalent to 2-pipe or 4-pipechilled water systems, but also offer a viable alternative toWater-Source Heat Pump solutions. Each connected IndoorUnit can provide heating and cooling independently tosuit zone requirements making these systems suitablefor both open plan, or cellular applications with differentoperation requirements.Geothermal ApplicationThe VRV T-Series Water Cooled system can connect to ageothermal water loop as standard, which makes it one ofthe most energy-efficient air-conditioning systems availablein the market.Underground temperatures remain relatively constant allyear round. They are warmer than the air above it during thewinter and cooler than the air above it during the summer.Standard Operation13465This helps reduce the load on the compressor andprovides substantial energy savings over traditional coolingtower/boiler installations.Geothermal Application(Cooling Tower/Dry Cooler, Boiler)2VRV Water Cooled systems are capable of utilizing thisconstant temperature by exchanging heat with the earththrough a ground heat exchanger.3351 Cooling Tower or Dry Cooler 2 Boiler 3 Indoor Units 4 Refrigerant Pipes5 Condensing Units 6 Water Loop PipingWhy select a VRV T-Series Water Cooled System?›› The efficiency and capacity of air-cooled systems reduce at extreme ambient conditions, causing systems to beoversized and increasing initial cost. Water cooled VRV operation is not affected by outside air temperatures.›› Geothermal energy can be used to heat and cool your building, which can help you gain more LEED points.›› Extreme piping lengths in applications such as high-rise buildings cause capacity reductions. Positioning watercooled condensing units floor-by-floor reduces the capacity reduction and improves the system efficiency.›› Water cooled VRV systems typically require less base refrigerant charge than that of a similar air-cooled VRVsystem and thus can be used in applications with limited allowable refrigerant within the building.›› Condensing units can be linked to existing water piping and utilize the existing heat source to reduce initial costs.›› No external operation sound produced by condensing units to disturb your building neighbors since water cooledVRV systems are installed indoors only.4

Features and BenefitsGeothermal Operation and AdvantagesVRV T-Series Water Cooled can use lakes, rivers and ground loops to takeadvantage of the Earth as a natural heat sink or heat source, eliminatingthe need for equipment such as boilers, cooling towers, or dry coolers.14ºFExtended Water Temperature Operation Range50ºF95ºF 113ºFStandardCondenser water inlet temperature can be as low as 23 F in cooling and14 F in heating. Please note that glycol usage is required when enteringcondenser water temperature is below 50 F. Please refer to EngineeringManual for further details.GeothermalHeating (EWT)23ºF50ºF113ºFStandardGeothermalCooling (EWT)Variable Water Flow ControlCondensing unit can control water control device such as an inverterpump or modulating valve via 2-9V signal based on capacity requirement.This increases waterside system operational efficiencies by reducingthe water flow when possible.Flow ValveInput SignalVariableWater FlowValveInverterPumpIndoor installation makes unit invisible from the outsideBecause the system is water cooled, outside air temperature doesnot affect system capacity. Condensing units are installed inside thebuilding, which enhances design flexibility and makes it easier to adaptto different buildings types.›› Great solution for sound sensitive environments as there is no noisemitigation outside to disturb building neighbors›› Superior efficiency, even in the most extreme outside conditions,especially in geothermal operationHeat Rejection Cancellation TechnologyEngineered with heat rejection cancellation technology to minimize heataddition to mechanical rooms** This function needs to be enabled through field settings.VRV T-Series Water Cooled5

Features and Benefits (Cont.)VRT modecontrol selectionto match userpreferencesThis chart reflects theoperation trend of a VRVsystem when in normaloperation and under VRTcontrol. Actual energysavings through VRT varybased on the buildinglocation, load characteristics,occupancy and systemusage conditions.Basic mode is selected to maintain optimal comfort. VRT is selected to save energy and prevent excessive cooling.Capacity priorityEnergy saving priorityFixed Refrigerant TemperatureVariable Refrigerant TemperatureBASIC MODEAUTO MODEFixed Te - Standard controlFloating target Te depending on heat loadHIGH SENSIBLE MODEFixed target TeSelecting VRT enables operation to be optimised for either energy efficiency or rapid cooling.Floating TePOWERFUL MODEReaction speedVery Fast» Can boost capacity above100% if needed.The refrigerant temperaturecan go lower in cooling thanthe set minimum.» Gives priority to very fastreaction speed.The refrigerant temperaturegoes down fast to keep theroom setpoint stable.Fixed TeQUICK MODEReaction speedFast» Gives priority to fastreaction speed.The refrigerant temperaturegoes down fast to keep theroom setpoint stable.ECOECO MODEMODEMILD MODEReaction speedMediumUnable to change Te» Gives priority to efficiency.The refrigerant temperature goesdown gradually giving priority tothe efficiency of the systeminstead of the reaction speed.2-Stage Heat (Energy) Recovery2-Stage Heat (Energy) Recovery is available betweenindoor units on the same VRV system and then acrossall the systems connected to a common water loop. Thishas a dramatic impact on power consumption and helpsimprove energy efficiency.Stage 1: Heat recovery between indoor units inthe same refrigerant circuit — available on heatrecovery units.Heat rejected from indoor units in cooling mode istransferred to units in areas requiring heating. Thiswaste heat utilization leads to maximizing energyefficiency and reducing electricity costs.Stage 2: Heat recovery between condensing unitsvia the water loop — available on both heat pumpand heat recovery units.Second stage heat recovery is achieved within thewater loop between condensing units, reducingthe use of cooling tower/boiler for more energyefficiency.Stage 2Stage 1Heat recovery between indoor unitsHeat recovery between condensing units(available on heat recovery units)(available on both heat pump and heat recovery units)Cooling tower (Closed type), boilerAll indoor unitsin cooling modeHeat rejectedto loopVRV WCIndoor unitsmainly cooling,partly heatingHeat rejectedto loopVRV WCFull HeatRecoveryVRV WCIndoor unitsmainly heating,partly coolingHeat absorbedfrom loopVRV WCAll indoorunits inheatingmodeHeat absorbedfrom loopVRV WC6* Above system configurations are for illustration purposes only.

Features and Benefits (Cont.)Space Saving – Compact Design & Stacked ConfigurationsCompact casing (Height: 38-9/16” Width: 30-1/8” Depth: 22-1/16”) allows for stacking of the units to maximize spacesaving. Stacked systems can easily fit in mechanical rooms with under 7 ft. (dual stack) or under 11 ft. (triple stack) ceilingsthanks to the reduced unit height.RWEYQ144PCRWEQ144TCeiling39-3/8”12 TON38-9/16”Ceiling12 TON12 TON10.3 ft.6.8 ft.12 TON61-1/2”22-21-11/16”12 TON22”Floor30-1/8”Footprint: 9.3 sq. ft.Weight: 686 lbsFootprint: 4.6 sq. ft.Weight: 423 lbs50% Decrease38% Decrease12-Ton VRV IV PC vs New VRV T-SeriesIdeal Retrofit to ExistingWater Cooled Systems22”Floor30-1/8”30-1/8”24-TonDual Stack Installation36-TonTriple Stack InstallationRetainedcooling towerVRV T-Series Water Cooled can utilizethe existing systems such as coolingtowers, dry coolers and boilersduring renovation for further costsavings.New available spaceAfter renovationBefore renovationEasy Installation and ServicingDeveloped for easy installation and servicing: options tochoose between top or front connection for refrigerantpiping and drop-down switch box for easy access tocomponents.Drop-DownElectrical BoxTop SideRefrigerant PipingConnectionFront SideRefrigerant PipingConnectionSimplified Commissioning and Servicing›› New configurator software designed to simplify thecommissioning and maintenance of the system.›› 3-digit 7-segment digital display on the unit forimproved and faster configuration, commissioning,and troubleshooting compared to previous model.DigitalDisplayProgrammingSwitchesBS1 BS2 BS3VRV T-Series Water Cooled7

Specifications (Cont.)Refrigerant Piping LimitationsLiquid Line Max (feet)ABCDEAVertical Drop164BBetween IDU98CVertical Rise130DFrom 1st Joint130 (295*)ELinear Length540 Actual623 EquivalentTotal one-wayPiping Length980* Upsizing is required. Please refer toInstallation Manual for further details.Service Space Requirements*18VRV T-SeriesWater Cooled