Trane ctv-prc007-en manuale d’uso

CenT raV ac ™ Liquid Chillers Centrifugal Liquid Chillers/ W ater -Cooled 170-3500 T ons 50 and 60 Hz Built For the Industrial and Commercial Markets CTV -PRC007-EN April 2001 CVHE — Three Stage CVHF — T wo-Stage CenT raV ac LHCV — Module CenT raV ac 170 1300 CVHG — Three Stage 500 325 1750 450 1300 3500 3500 GPC — Gas Powered CenT raV [...]

CTV -PRC007-EN ©American Standard Inc. 2001 What We Mean By Earth • Wise Breaking the .48 kW/T on Efficiency Barrier The T rane Earth • Wise CenT raV ac has a proven track record as literally the world’ s most efficient, lowest emissions chiller . In fact, a portion of the product line is selectable at an unmatched efficiency level of .48 kW[...]

3 CTV -PRC007-EN Contents Introduction Features and Benefits Components, Standard and Optional Features, Factory Performance T esting, Refrigeration Cycle, Control Panel Unit Options Unit Mounted Starter , Adaptive Frequency Drives, Free Cooling System Options Auxiliary Condenser , Ice Storage, Heat Recovery , Chilled W ater Resets Application Cons[...]

CTV -PRC007-EN 4 Introduction The first T rane centrifugal chiller , the T urbovac ™ was introduced in 1938. The simple, direct drive, slow speed design of the T urbovac revolutionized the air conditioning industry . The chiller was attractive to customers because its hermetic design reduced frequent service requirements. In 1951 the T rane CenT [...]

5 CTV -PRC007-EN Introduction Specific T rane centrifugal chiller performance is certified by ARI Standard 550/590. T rane centrifugal chillers tested within the scope of the ARI program display the ARI symbol of compliance (shown on back cover) to certification sections of ARI Standard 550/590. Purifier ™ purge with Purifier Plus ™ are rated i[...]

CTV -PRC007-EN 6 Comparing the Attributes of Low Pressure Chiller Operation to High Pressure Chiller Operation. T rane CenT raV ac chillers continue to offer time tested and proven low pressure refrigerants including the alternative environment friendly HCFC- 123. T rane CenT raV ac chillers provide the safety of low pressure with continued product[...]

7 CTV -PRC007-EN Operator Control Panel T rane has multi-language support for all chillers controlled by the UCP2 ™ including but limited to: CVHE, CVHF , CVHG, GPC and LHCV alarm. The standard Clear Language Display (CLD) supports eight languages including English, French, German, Spanish, Katakana, Italian, Portuguese and Dutch. The Complex Cha[...]

CTV -PRC007-EN 8 Internally enhanced or smooth bore tubes V arious tube materials and thicknesses Controls and paints for outdoor use or corrosive environments Marine or standard waterboxes 1, 2, 3, pass evaporator Factory installed insulation UL label Full complement of electrical starters and accessories (unit mounted or remotely) Special constru[...]

9 CTV -PRC007-EN Standard Features The following features are provided as standard with all T rane CenT raV ac ™ chillers: • Motor -compressor assembly with integral lubrication system. • Evaporator condenser assembly . • T wo-stage economizer assembly on CVHE/CVHG style units (single-stage on CVHF style units). • Prewired instrument and [...]

CTV -PRC007-EN 10 Factory T esting for Assured Performance T o prove that your chiller will perform as promised, T rane offers factory performance testing, which you can witness. T rane provides laboratory-grade, calibrated performance testing on ARI approved test loops that proves the performance of the chiller tailored to your application. The te[...]

11 CTV -PRC007-EN Design Simplicity Impellers are keyed directly to the motor shaft for high reliability and performance and low life-cycle costs. Reliable Motor Cooling The motor is engulfed in liquid refrigerant to provide efficient, complete cooling at all load conditions. This system is reliable and easy to maintain. Fixed Orifice Flow Control [...]

CTV -PRC007-EN 12 CenT raV ac ™ Three-Stage P-H Diagram The pressure-enthalphy (P-H) diagram describes refrigerant flow through the major CVHE/CVHG chiller components. This diagram confirms the superior operating cycle efficiency of the three- stage compressor and two-stage economizer . Evaporator — A liquid-gas refrigerant mixture enters the e[...]

13 CTV -PRC007-EN Unit Options Unit-Mounted Starters T rane factory installed options make installation of a CenT raV ac ™ chiller easier , faster and less costly . Another example of the T rane packaged concept is the factory installed unit-mounted star delta starter available on CenT raV ac chillers up to 1300 tons capacity or solid-state start[...]

CTV -PRC007-EN 14 Figure O-2 – T ypical Equipment Room Layout – Unit-Mounted Star-Delta Starter Figure O-1 – T ypical Equipment Room Layout – Conventional Remote Star -Delta Starter • System Design T ime Cost Savings System design time is reduced, since all starter components and interconnecting wiring are pre- engineered and selected. ?[...]

15 CTV -PRC007-EN The solid-state starter controls the starting characteristics of a motor by controlling the current that flow to the motor . It does so through the use of SCRs (Silicon Controlled Rectifiers), which are solid-state switching devices, and an integral bypass contactor for power control. SCR ’ s An SCR will conduct current in one d[...]

CTV -PRC007-EN 16 Unit Options Adaptive Frequency Drives Figure O-4 — CVHE500 Part Load Efficiencies with/without AFD Benefits T rane Adaptive Frequency drives* provide motor control, but they are much more than just starters. They also control the operating speed of the chiller compressor motor by regulating output voltage in proportion to outpu[...]

17 CTV -PRC007-EN Condenser water temperature relief of chilled water reset Compressor lift reduction is required for a chiller application, both to provide stable chiller operation at part-loads and to achieve greater energy savings. Intelligent control to reduce condenser water temperature, or chiller water reset strategies are key to AFD savings[...]

CTV -PRC007-EN 18 Benefits The T rane patented free cooling accessory for T rane CenT raV ac ™ chillers adapts the basic chiller so it may function as a simple heat exchanger using refrigerant as the working fluid. When condenser water is available at temperatures lower than the desired chilled liquid temperature, free cooling can provide up to 4[...]

19 CTV -PRC007-EN Free Cooling Unit Options T emperature and humidity control requirements are important considerations when evaluating the use of CenT raV ac free cooling. Low temperature outside air (from the outside air economizer) often requires a large amount of energy for humidification purposes. Free cooling operation helps to reduce these h[...]

CTV -PRC007-EN 20 System Options Auxiliary Condenser Auxiliary Condenser The T rane auxiliary condenser provides economical heat recovery for applications with small heating demand. It ’ s well-suited to preheat applications including domestic hot water , boiler makeup water and swimming pools. The T rane auxiliary condenser option consists of a [...]

21 CTV -PRC007-EN System Options Auxiliary Condenser (Cont.) Controls The auxiliary condenser was designed for simplicity of operation. Machine load, water flow rate, and temperature determine the amount of heat recovered. There are no controls needed for heating water temperature because no attempt is made to maintain a specific hot water temperat[...]

CTV -PRC007-EN 22 Ice Storage Provides Reduced Electrical Demand Ice storage is the hottest thing in cooling today . It has been accepted by building owners and tenants who are concerned about utility costs. An ice storage system uses a standard chiller to make ice at night when utilities charge less for electricity . The ice supplements or even re[...]

23 CTV -PRC007-EN Heat Recovery System Options Heat Recovery Use of the Heat Recovery CenT raV ac ™ can significantly reduce the energy operating costs of many buildings by using heat which normally would be rejected to the atmosphere. T ypical uses for this heat are perimeter zone heating, reheat air conditioning systems and any hot water requir[...]

CTV -PRC007-EN 24 Simultaneous Heating and Cooling The T rane Heat Recovery CenT raV ac ™ chiller is an excellent choice for applications requiring simultaneous heating and cooling. CenT raV ac models save energy by recovering heat normally rejected to the atmosphere and putting that energy to use providing space heating, building hot water or pr[...]

25 CTV -PRC007-EN System Options Chilled W ater Reset Chilled W ater Reset — Chilled water reset is often a practical means of reducing energy consumption during periods of the year when heating loads are high but cooling loads are reduced. Resetting the chilled water temperature increases the evaporator refrigerant pressure. This increased evapo[...]

CTV -PRC007-EN 26 For Applications Requiring 1300-3500 T ons (60 Hz), Choose LHCV • The LHCV chiller system is the modern solution for large central plant applications. It offers significant first cost and operating cost advantages compared to field-assembled very large chillers. • The T rane Integrated Comfort ™ system (ICS) is the key to hi[...]

27 CTV -PRC007-EN Condenser Water Limitations T rane CenT raV ac ™ chillers start and operate over a range of load conditions with controlled water temperatures. Reducing the condenser water temperature is an effective method of lowering the chiller power input. However , the effect of lowering the condenser water temperature may cause an increas[...]

CTV -PRC007-EN 28 Selection The CenT raV ac ™ centrifugal chiller product line provides more than 200,000 individual unit selections over a capacity range of 170 through 3500 tons. Chiller selections and performance data can be obtained through the use of the CenT raV ac chiller selection program available in local T rane sales offices. This prog[...]

29 CTV -PRC007-EN Roughing-in Dimensions The dimensional drawings illustrate overall measurements of the chiller . The recommended space envelope indicates clearances required to easily service the CenT raV ac chiller . A view of the unit is superimposed on this drawing with unit support feet shown. All catalog dimensional drawings are subject to c[...]

CTV -PRC007-EN 30 Minimum/Maximum Evaporator Flow Rates (GPM) Shell Bundle One Pass T wo Pass Three Pass Size Size SBCU TECU IECU SBCU TECU IECU SBCU TECU IECU EVSZ EVBS Min / Max Min / Max Min / Max Min / Max Min / Max Min / Max Min / Max Min / Max Min / Max 032S 200 216 / 1187 230 / 1237 143 / 1050 108 / 593 115 / 618 72 / 525 72 / 396 77 / 412 4[...]

31 CTV -PRC007-EN Performance Data Minimum/Maximum Condenser Flow Rates (GPM) Shell Bundle T wo Pass Size Size SBCU TECU IECU CDSZ CDBS Min / Max Min / Max Min / Max 032S 230 214 / 784 209 / 767 218 / 798 032S/L 250 239 / 877 234 / 857 245 / 899 032S/L 280 267 / 980 261 / 958 273 / 1000 032S/L 320 295 / 1083 289 / 1059 306 / 1121 050S 360 336 / 123[...]

CTV -PRC007-EN 32 Figure J-1 — Electric Connections Shipment and Assembly All style hermetic CenT raV ac ™ units ship as a factory assembled, factory tested package, ready to rig into place on factory supplied isolation pads. Jobsite Connections Supply and Motor Lead Wiring and Connections Copper conductors only should be connected to the compr[...]

33 CTV -PRC007-EN Controls Advanced Controls T rane set the standard for unit microprocessor controls in 1985 with the first generation Unit control panel. Associated with this standard have been: • Proportional Integral Derivative (PID) control strategies which provide stable operation and higher accuracy for better performance; • Adaptive Con[...]

CTV -PRC007-EN 34 Controls Building Automation and Chiller Plant Control For building automation and control of chilled water plants, T rane has developed the T racer Summit ™ . It can control the operation of the complete installation: chillers, pumps, cooling towers, isolating valves, air handlers and terminal units. It is a pre-programmable, b[...]

35 CTV -PRC007-EN Controls Optimal Performance Regardless of the system level being designed, the unit controls become critical not just in making every level operate reliably but in facilitating optimal performance. UCP2 provides more capability and more intelligence to make this operation/ optimization possible: Chiller Level • Factory mounted [...]

CTV -PRC007-EN 36 • Evaporator leaving fluid temperature setpoint • Evaporator entering and leaving fluid temperatures • Condenser water entering and leaving water temperature • Current limit setpoint • Evaporator flow and condenser flow (optional) • Outdoor temperature (optional) • Fluid or water pressure drops (optional) evaporator [...]

37 CTV -PRC007-EN Controls Sequence of Operation For this sequence of operation it will be assumed that the control source has signaled the chiller to be in Automatic (i.e. when there is a load present, the chiller will turn on and when the load disappears, the chiller will turn off). It is also assumed that no diagnostic has occurred either prior [...]

CTV -PRC007-EN 38 A demand for chilled water is determined by a temperature differential between the evaporator fluid setpoint and the supply fluid temperature. Start is inhibited and the condition enunciated if high condenser pressure or low oil temperature or high motor winding temperature is detected. Restart (defined as successive, unsuccessful[...]

39 CTV -PRC007-EN 60 Hz Compressors (English & SI Units) W eights Operating W eight** Shipping Weight** TYPE NTON CPKW EVSZ CDSZ (lbs) (kg) (lbs) (kg) CVHE 230-320 287 032S 032S 14909 6763 13721 6224 CVHE 230-320 287 032S 032L 15548 7053 14265 6471 CVHE 230-320 287 032L 032L 16422 7449 14911 6764 CVHE 230-320 287 050S 050S 18530 8405 16579 7520[...]

CTV -PRC007-EN 40 W eights Operating W eight** Shipping Weight** TYPE NTON CPKW EVSZ CDSZ (lbs) (kg) (lbs) (kg) CVHE 190-270 242 032S 032S 14259 6468 13071 5929 CVHE 190-270 242 032S 032L 14898 6758 13615 6176 CVHE 190-270 242 032L 032L 15772 7154 14261 6469 CVHE 190-270 242 050S 050S 17880 8110 15929 7225 CVHE 190-270 242 050S 050L 18848 8549 1674[...]

41 CTV -PRC007-EN Physical Dimensions CENTRA V AC W A TER CONNECTION PIPE SIZE W ater Shell Size Passes 032 050 080 142 210 EV APORA TOR Nominal Pipe Size (Inches) 1 P ASS 8 10 12 16 16 2 P ASS 6 8 10 12 14 3 P ASS 5 6 8 10 12 CONDENSER 2 P ASS 6 8 10 12 14 ENGLISH UNITS Envelope Clearance Unit Dimensions W/O Unit With Unit W/O Unit With Unit Shell[...]

CTV -PRC007-EN 42 METRIC UNITS Envelope Clearance Unit Dimensions W/O Unit With Unit W/O Unit With Unit Shell Mounted Mounted T ube Mounted Mounted Shell Arrange- Starters Starters Pull Starters Starters COMP Size ment EL EW EW CL1 CL2 Length Height Width Width 190-270 3 20 SS 8052 3207 3467 3581 1041 3429 2380 1759 2019 190-270 320 SL & LL 103[...]

43 CTV -PRC007-EN CENTRA V AC W A TER CONNECTION PIPE SIZE W ater Shell Size Passes 032 050 080 142 210 250 EV APORA TOR Nominal Pipe Size (Inches) 1 P ASS 8 10 12 1 6 16 16 2 P ASS 6 8 10 12 14 14 3 P ASS 5 6 8 10 12 12 CONDENSER 2 P ASS 6 8 10 12 14 14 ENGLISH UNITS Envelope Clearance Unit Dimensions W/O Unit With Unit W/O Unit With Unit Shell Mo[...]

CTV -PRC007-EN 44 METRIC UNITS Envelope Clearance Unit Dimensions W/O Unit With Unit W/O Unit With Unit Shell Mounted Mounted T ube Mounted Mounted Shell Arrange- Starters Starters Pull Starters Starters COMP Size ment EL EW EW CL1 CL2 Length Height Width Width 230-320 3 20 SS 8052 3207 3467 3581 1041 3429 2380 1759 2019 230-320 320 SL & LL 103[...]

45 CTV -PRC007-EN These graphics are intended to help you visualize the possible connections/combinations that may be available for your unit. Y o u must contact your local T rane office who can configure your selection as an as-built drawing to confirm it is available and to provide appropriate dimensions. Physical Dimensions W aterbox Connection [...]

CTV -PRC007-EN 46 Waterbox Lengths – English Units RETURN RETURN SHELL PRESSURE EV AP P ASSES LENGTH LENGTH COND NO. P ASSES LENGTH LENGTH 320 150 PSIG MAR 1 16.12 MAR 2 16.674 6.125 320 150 PSIG MAR 2 16.12 6.94 NMAR 2 9.25 cast 6.125 320 150 PSIG MAR 3 16.12 320 150 PSIG NMAR 1 12.94 320 150 PSIG NMAR 2 12.94 6.94 320 150 PSIG NMAR 3 12.94 320 [...]

47 CTV -PRC007-EN Waterbox Lengths – Metric Units RETURN RETURN SHELL PRESSURE EV AP P ASSES LENGTH LENGTH COND NO. PASSES LENGTH LENGTH 320 150 PSIG MAR 1 409 MAR 2 424 156 320 150 PSIG MAR 2 409 176 NMAR 2 235 cast 156 320 150 PSIG MAR 3 409 320 150 PSIG NMAR 1 329 320 150 PSIG NMAR 2 329 176 320 150 PSIG NMAR 3 329 320 300 PSIG MAR 1 409 MAR 2[...]

CTV -PRC007-EN 48 Compressor Guide V anes Fully modulating variable inlet guide vanes provide capacity control. The guide vanes are controlled by an externally mounted electric vane operator in response to refrigeration load on the evaporator . Impellers Fully shrouded impellers are high strength aluminum alloy and directly connected to the motor r[...]

49 CTV -PRC007-EN Condenser/Heat Recovery Condenser Shell and W aterboxes The condenser shell is formed of carbon steel plate designed and constructed in accordance with ANSI/ASHRAE 15 Safety Code. For all units, all pass arrangements are available at 150 psig or 300 psig water side working pressures with grooved connections. Flanged connections ar[...]

CTV -PRC007-EN 50 The display also provides over 20 reports that are organized into four groupings: Custom Report, Chiller Report, Refrigerant Report, and Compressor Report. Each report contains data that is accessed by scrolling through the menu items. Each grouping will have a heading which describes the type of data in that grouping. This data i[...]

51 CTV -PRC007-EN T rane Adaptive Frequency ™ Drive (AFD) The T rane AFD is a closed-loop, liquid- cooled, microprocessor based PWM design that converts fixed utility voltage and frequency to a variable voltage and frequency via a two-step operation. The AFD is both voltage and current regulated. Output power devices: IGBT transistors. The AFD is[...]

Since The T rane Company has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice. Literature Order Number File Number Supersedes Stocking Location The T rane Company An American Standard Company www .trane.com For more information contact your local sales office or e-[...]