Transcript Trane VWF
Trane Variable Water Flow System Outdoor Air-cooled Water Chiller Installation, Operation & Maintenance Trane Variable Water Flow System 2 • Introduction - What is VRF system? • System Profile – System & Components • Chiller Unit – Nameplate Trane Variable Water Flow System What Is It? • A newly designed, digitally controlled air-cooled variable water chiller system – – Variable Refrigerant Flow in Refrigeration Loop & Variable Water Flow in water loop Water used as heat transfer media, no refrigerant in occupied space Digital Chiller Trane Variable Water Flow System RS48 5 Concealed Concealed High Wall Cassett e Central Controll er Thermosta t Thermosta t Remote Controller Remote Controller Inflow Water loop Outflow Water loop Communication line 3 Outdoor Unit Digital Scroll Compressor Built-in two-speed water pump Fan design delivers reduced noise levels Cooling capacity range 6RT 8RT 10RT 12RT 14RT • • • • 4 CGD*100/ 120/ 150/ 175/ 200 Cooling: 24.5kW - 48.5kW Heating: 24.5kW - 48.5kW Power source: 220V/60Hz/3Ph 380V/50Hz/3Ph Outdoor Unit 10RT 6RT \ 8RT Fixed Fixed Cabinet Size (mm) (HxWxD): 1,900 x 1,990 x 600 Digital Fixed 5 Digital Fixed Digital Cabinet Size (mm) (HxWxD): 1,900 x 1,290 x 600 12RT \ 14RT Cabinet Size (mm) (HxWxD): 1,900 x 1,990 x 600 Digital Scroll Compressor • Pulse Width Modulation (PWM signal) • 10-100% continuous capacity control • Superior performance • Simplified control parts 6 Controllers Type of ID Concealed Unit Controllers Wired System Controllers Remote Type Not Available Central Controller (Standard) Cassette Hi-Wall Not available 7 • Central controller is a “must have” • Wired thermostat is Trane Patented design – Color back light – Last setting for resuming power Controllers Central Controller 8 Wired Controller Remote Controller • Multi-zone control • Patented design • Remote ON/OFF fan coil • Individual zone control • LCD display • Function setting, temperature regulation, air velocity setting • Troubleshooting • Cooling/heating/ ventilation control • Timer setting • Sleeping mode • Mode setting • Last setting for resuming power • Sleep mode setting, timer setting function • Remote control distance ≥5M How to Select “EarthWise” OD Parameter Setting: Set leaving water temp to 5°C via central controller In-Door Unit Selection: • Concealed unit: select “Earthwise” application • High wall & Cassette: Not available Choose “Earthwise” option in TDS tools to run product configuration report 9 • Digit 17: Application - N = Normal application E = Earthwise Model Number Description C G D K100 2 H E A Z R N R R A C 1 2 3 4 5,6,7 8 9 10 11 12 13 14 15 16 17 18 Digit 1,2,3 — Unit Type CGD= Digital Air-Cooled Water Chiller Refrigeration Circuit Digit 4 R = Heat Pump K = Cooling Only Digit 5-7 — Nominal Capacity (Tons) 100 = 6 120 = 8 150 = 10 175 = 12 200 = 14 Digit 8 — Voltage Selection 2 = 220V/60 Hz/3 ph 5 = 380V/50 Hz/3 ph Digit 9— Airflow Configuration H = Horizontal Digit 10— Refrigerant E = R-22 Digit 11 — Manufacturing Code (defaulted by factory) A = Double Compressors B = Triple Compressors Digit 12 — Central Controller Z = With Central Controller (as standard) Digit 13 — Chilled Water Pump R = Water Pump Digit 14 — Auxiliary Electric Heater in Water Circuit N = None Digit 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 Version Digit 18 — Region V = China A = APR B = MAIR C = LAR 10 11 12 13 14 15 16 PVC Pipe Installation Benefits • PVC 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 17 PVC Pipe Installation Benefits Size ½” ¾” 1” 1 1/4” 1 1/2” 2 2 1/2” 3” 3 1/2” 4” 5” 6” 18 PVC Class 13.5 (Kg/m) 0.22 0.265 0.417 0.542 0.7 1.075 1.712 2.375 3.852 5.0807 8.092 12.515 Steel Sch#40 (Kg/m) 1.26 1.68 2.50 3.39 4.06 5.48 8.66 11.3 13.7 16.2 22.0 28.5 Size Diff. (time) 5.7 6.3 5.9 6.2 5.8 5.0 5.0 4.7 3.5 2.7 2.7 2.2 PVC Pipe Installation Benefits Size ½” ¾” 1” 1 1/4” 1 1/2” 2” 2 1/2” 3” 4” 5” 6” 8” 19 PVC Class 13.5 vs Black Steel Pipe #40 (ERW)* 64% 67% 64% 67% 63% 59% 57% 53% 37% 43% 39% 33% *The percentage price difference is based on the price in PVC Pipe Installation 22