Presentation on theme: "Trane Variable Water Flow System"— Presentation transcript:
1 Trane Variable Water Flow System Outdoor Air-cooled Water ChillerInstallation, Operation & Maintenance
2 Trane Variable Water Flow System IntroductionWhat is VRF system?System ProfileSystem & ComponentsChiller UnitNameplate
3 Trane Variable Water Flow System 4/11/2017Trane Variable Water Flow SystemWhat Is It?A newly designed, digitally controlled air-cooled variable water chiller systemVariable Refrigerant Flow in Refrigeration Loop & Variable Water Flow in water loopWater used as heat transfer media, no refrigerant in occupied spaceDigital ChillerCentral ControllerRS485Trane Variable Water Flow SystemRemote ControllerHigh WallCassetteConcealedInflow Water loopCommunication lineThermostatOutflow Water loop3
5 Outdoor Unit 10RT 12RT \ 14RT 6RT \ 8RT DigitalFixedDigitalFixedDigitalFixedFixedCabinet Size (mm) (HxWxD): ,900 x 1,290 x 600Cabinet Size (mm) (HxWxD): ,900 x 1,990 x 600Cabinet Size (mm) (HxWxD): ,900 x 1,990 x 600
6 Digital Scroll Compressor Pulse Width Modulation (PWM signal)10-100% continuous capacity controlSuperior performanceSimplified control partsThe PWM valve is designed specially as a solenoid valve to modulate the pressure forcing on the fixed scroll and controlling the compressor’s loading/unloading. The PWM receives the On/Off signal and controls the loading/unloading status. When the PWM valve is turned off, the fixed scroll is pushed down to the orbiting scroll (Loading). When the PWM valve is turned on, the fixed scroll is separated from the orbitingscroll(Unloading). This process is repeatedly done to make the outdoor unit control automatically depending on the number of operating indoor unit(s) and their heating/cooling demand.To summarize the performance of the Digital Scroll compressor:One : There will be running cost savings due to the high efficiency of the compressor.Two: Your customers will have more comfort. The wide capacity range will be able to control the room temperature and humidity very precisely.Three: The system will be reliable – the compressor is extremely reliable and the electronics is simple. There is no need to worry about oil return for any operationFour: There is no electromagnetic interference issue
7 Controllers Central controller is a “must have” Unit ControllersTypeCentral Controller(Standard)System ControllersType of IDWiredRemoteConcealedNot AvailableCassetteCentral controller is a “must have”Wired thermostat is Trane Patented designColor back lightLast setting for resuming powerHi-WallNot available
8 Controllers Wired Controller Remote Controller Central Controller Remote ON/OFF fan coilFunction setting, temperature regulation, air velocity settingSleep mode setting, timer setting functionRemote control distance ≥5MPatented designLCD displayCooling/heating/ ventilation controlSleeping modeLast setting for resuming powerMulti-zone controlIndividual zone controlTroubleshootingTimer settingMode setting
9 How to Select “EarthWise” 4/11/2017How to Select “EarthWise”OD Parameter Setting:Set leaving water temp to 5°Cvia central controllerIn-Door Unit Selection:Concealed unit: select “Earthwise” applicationHigh wall & Cassette: Not availableDigit 17: ApplicationN = Normal applicationE = EarthwiseChoose “Earthwise” option in TDS tools to run product configuration report
10 Model Number Description C G D K H E A Z R N R R A C,6,Digit 1,2,3 — Unit TypeCGD= Digital Air-Cooled Water Chiller Refrigeration CircuitDigit 4 R = Heat Pump K = Cooling OnlyDigit 5-7 — Nominal Capacity (Tons) 100 = = = = = 14Digit 8 — Voltage Selection 2 = 220V/60 Hz/3 ph 5 = 380V/50 Hz/3 phDigit 9— Airflow Configuration H = HorizontalDigit 10— Refrigerant E = R-22Digit 11 — Manufacturing Code (defaulted by factory) A = Double Compressors B = Triple CompressorsDigit 12 — Central Controller Z = With Central Controller (as standard)Digit 13 — Chilled Water Pump R = Water PumpDigit 14 — Auxiliary Electric Heater in Water Circuit N = NoneDigit 15 — Ambient Temperature R = Standard Ambient Temperature Set (Standard)Digit 16 — Water Pipe Direction (Face to the Airflow) R = Right Side (Standard) B = Back Side (Optional)Digit 17 — Design Sequence (Not for client) A = First Version B = Second VersionDigit 18 — Region V = China A = APR B = MAIR C = LAR
17 PVC pipe and fitting price is 4 times cheaper than steel pipe’s. PVC Pipe Installation BenefitsPVC pipe and fitting price is 4 times cheaper than steel pipe’s.PVC Pipe weight is 6 times less than steel pipe’s.Use smaller pipe size because friction loss of PVC pipe is much less than steel pipe’s.Easy transportation, Easier and quicker installation, longevity
19 PVC Class 13.5 vs Black Steel Pipe #40 (ERW)* PVC Pipe Installation BenefitsSizePVC Class 13.5 vs Black Steel Pipe #40 (ERW)*½”64%¾”67%1”1 1/4”1 1/2”63%2”59%2 1/2”57%3”53%4”37%5”43%6”39%8”33%*The percentage price difference is based on the price in Thailand.
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