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Standard CVGF Features

The following features are provided as standard with all Trane Model CVGFchillers:

• Hermetic two-stage centrifugal compressor-motor assembly with integral lubrication system

and economizer cycle

• Evaporator and condenser assembly

• Prewired instrument and control panel

• Oil charge

• Integral oil heaters

• Isolation pads

• Wiring and oil system interconnection to main control panel

• Advance motor protection

• Two-stage gear drive with economized cycle for high effi ciency and high reliability

• Liquid cooled hermetic induction motor; the motor operates at lower temperatures for longer

motor life

Optional Features

• Unit and remote wye-delta mounted starters

• Unit mounted, fl oor mounted, and wall mounted solid state starters.

• Across-the-line, Primary Reactor, and Auto Transformer Remote mounted starter for medium/

high voltage

• Marine waterboxes for evaporator and condenser

• Factory-applied thermal insulation

• One-inch defl ection spring isolators for vibration-sensitive installations

• Refrigerant available from a local distributor

• Building automation systems (BAS) Interface

• Factory testing

Applications

• Comfort cooling

• Industrial process cooling

Patents

• Polygon drive for refrigeration compressor impellers

• Centrifugal compressor sump demister

• Internal oil fi lter

• Thermosiphonic oil cooler

• Compressor height and alignment adjustment

• Oil return using hot gas for motive force

• Centrifugal impeller assembly

• Internal oil fi lter

Orifi ce System

• Simplifi ed orifi ce system with improved part load performance down to 20 percent part load

Features and Benefi ts

CTV-PRC001-E4

Содержание CVGF

Страница 1: ...Centrifugal Water Chillers Model CVGF Water Cooled Hermetic Centrifugal Refrigeration Capacities from 400 to 1000 Tons 1400 3510 kW 50 and 60 Hz October 2008 CTV PRC001 E4 ...

Страница 2: ...buildings TheTrane centrifugal chiller line offers hundreds of individual evaporator condenser compressor combination selections permitting precise tailoring of the machine capacity to system requirements Machine selections can be computer optimized to provide low first cost low operating cost or other criteria important for a particular selection Centrifugal Water Chiller computer selection progr...

Страница 3: ...ction 2 Features and Benefits 9 Application Considerations 10 General Data 12 Jobsite Connections 13 Controls 17 Physical Dimensions 19 Mechanical Specifications 23 Conversion Table 27 Contents 3 CTV PRC001 E4 ...

Страница 4: ... mounted and wall mounted solid state starters Across the line Primary Reactor and Auto Transformer Remote mounted starter for medium high voltage Marine waterboxes for evaporator and condenser Factory applied thermal insulation One inch deflection spring isolators for vibration sensitive installations Refrigerant available from a local distributor Building automation systems BAS Interface Factory...

Страница 5: ... assembly compared to previous designs Patented integral heaters imbedded into the compressor casting no seals no leaks Beaded flat gasket technology instead of O rings lower susceptibility to developing leaks Minimal NPT pipe threads on chiller system SAE O ring boss fitting lowerleak potential Oil sump internal to compressor motor assembly with internal pump motor eliminates vent and drain lines...

Страница 6: ...r outlet for a laptop PC power supply 6 a h b e f c d i j g a At a glance status On highly readable color display showing key operating parameters of major chiller components b Intuitive navigation Helps operators access data and alarms for quick and accurate response and resolution c Reports Summarize data for clear understanding and interpretation d Graphs Visualize trend data for troubleshootin...

Страница 7: ...terface The panel bus is easy to troubleshoot using LED sensor verification Only the defective device is replaced Tracer TU can communicate with individual devices or groups of devices All chiller status machine configuration settings customizable limits and up to 100 active or historic diagnostics are displayed through the service tool software interface LEDs and their respective Tracer TU indica...

Страница 8: ...leaving water temperature Whenever the controller senses that it can no longer meet its primary objective without triggering a protective shutdown it focuses on the most critical secondary objective When the secondary objective is no longer critical the controller reverts to its primary objective Fast Restart The controller allows the CenTravac chiller to restart during the postlube process If the...

Страница 9: ...lant parameters Chiller Tower Optimization Tracer Summit chiller tower optimization extends Adaptive Control to the rest of the chiller plant Chiller tower optimization is a unique control algorithm for managing the chiller and cooling tower subsystem It considers the chiller load and real time ambient conditions then optimizes the tower setpoint temperature to maximize the efficiency of the subsy...

Страница 10: ...wing the compressor to restore the balance of forces If the process repeats itself the compressor is said to surge Two Stage Compressors Surge Less and Later To produce the same head as a single stage compressor two stage machines use two small diameter impellers Component Vt is the same as on each stage though Vr is the same as on a single stage compressor This results in a better balance of forc...

Страница 11: ...illed water pumps Such pumps may operate with objectionable noises and vibrations In addition a low frequency beat may occur due to the slight difference in operating rpm between water pumps and centrifugal motors Where noise and vibration free operation are important Trane encourages the use of 1750 rpm pumps Water Flow Today s technology challenges ARI s traditional design of three gpm per ton t...

Страница 12: ...ater Treatment The use of untreated or improperly treated water in a chiller may result in scaling erosion corrosion algae or slime It is recommended that the services of a qualified water treatment specialist are used to determine what treatment if any is advisable Trane assumes no responsibility for the results of untreated or improperly treated water 12 CTV PRC001 E4 ...

Страница 13: ...d Water Connection Grooved Pipe Connections Flanged Adaptor IP Unit Flanged Adaptor SI Unit Agency Approvals Chiller UL CUL Listed ASME CE Approval PED European Code Motor Volt Hz 380 400 415 3300 6600 Volts 50 Hz 380 460 575 3300 4160 Volts 60 Hz Starter Unit Mounted Wye Delta Solid State Inside the Delta Remote Mounted Wye Delta Solid State Inside the Delta Across the line Primary Reactor Autotr...

Страница 14: ...79 1248 87 1385 97 1536 108 1706 127 2009 142 2251 158 2497 175 2777 Standard Efficiency Shells 1 00 inch 25 4 mm Int Enhanced Cu Tube Condenser Nominal Shell 500 500 500 700 700 700 1000 1000 1000 1000 Bundle Size Small Medium Large Small Medium Large Small Medium Large Extra Large Number of Passes 2 2 2 2 2 2 2 2 2 2 Min Flow L s gpm 31 499 35 557 38 606 43 682 48 764 53 838 58 925 64 1020 75 11...

Страница 15: ...ould specify the required lug sizes for the particular application Ground lugs are provided in the motor terminal box and starter panel The motor terminals are supplied with connection pads that will accommodate bus bars or standard terminal lugs crimp type recommended Terminal lugs are field supplied These connection pads provide additional surface area to minimize improper electrical connections...

Страница 16: ...e Includes factory installed potential current transformers in the starter for monitoring and displaying phase voltage and provides over undervoltage protection Tracer AdaptiViewTM control Tracer TU and Tracer Summit display the following Compressor phase amperage a b b c c a Kilowatts Power factor uncorrected Compressor phase voltage a b b c c a Kilowatt hours Chilled Water Reset Chilled water re...

Страница 17: ...e chilled water setpoint lower than it is capable of achieving Then modify the chiller s load by adjusting the current limit setpoint This approach provides greater safety and control stability because it leaves the chilled water temperature control logic in effect The chilled water temperature control responds more quickly to dramatic system changes and limits chiller loading prior to reaching an...

Страница 18: ...h as a flow switch or pressure switch Customer wiring diagrams also suggest that the flow switch be wired in series with the cooling water condenser water pump starter s auxiliary contacts When this input does not prove flow within a fixed time during the transition from Stop to Auto modes of the chiller or if the flow is lost while the chiller is in the Auto mode of operation the chiller will be ...

Страница 19: ...erate protection can be disabled in the field startup menu The following derates apply when the phase unbalance limit is enabled 10 unbalance 100 RLA derate 15 unbalance 90 RLA derate 20 unbalance 85 RLA derate 25 unbalance 80 RLA derate 30 unbalance Shutdown Phase Loss Protection The controller will shut down the chiller if any of the three phase currents feeding the motor drop below 10 percent R...

Страница 20: ...es but is allowed to reach full load amps High Motor Winding Temperature Protection This function monitors the motor temperature and terminates chiller operation when the temperature is excessive The controller monitors each of the three winding temperature sensors any time the controller is powered up and displays each of the temperatures at the service menu Immediately prior to start and while r...

Страница 21: ...1 this will allow only one start within the time period set by the Start to Start Time setting The next Start will be allowed only after the Start to Start timer has expired If the number of free starts is programmed to 3 the control will allow three starts in rapid succession but thereafter it would hold off on a compressor start until the Start to Start timer expired Restart Inhibit Start to Sta...

Страница 22: ...ox See page 23 for waterbox dimension Dimensions SI Units English Units Clearance Unit Dimensions Unit Dimensions Tube Pull With Unit Mounted Starters Without Unit Mounted Starters Comp Shell Size CL1 CL2 Length Height Width Width 400 500 500 4235 mm 1118 mm 4083 mm 2094 mm 1984 mm 1929 mm 13 10 3 4 3 8 13 4 3 4 6 101 2 6 6 1 8 6 3 15 16 500 700 4235 mm 1850 mm 4083 mm 2200 mm 2038 mm 1988 mm 13 1...

Страница 23: ... 10 bar 150 psig NMAR 2 402 15 82 226 8 89 10 bar 150 psig NMAR 3 402 15 82 402 15 82 700 10 bar 150 psig NMAR 2 489 19 25 235 9 25 10 bar 150 psig NMAR 3 438 17 24 438 17 24 1000 10 bar 150 psig NMAR 2 581 22 87 276 10 87 10 bar 150 psig NMAR 3 530 20 87 530 20 87 Condenser Water Box Length SI I P Length No mm in Shell Pressure Evap Passes Supply Return 500 10 bar 150 psig NMAR 2 486 19 02 204 8 ...

Страница 24: ...f an internal oil sump with heaters positive displacement oil pump brazed plate condenser cooled oil cooler and oil distillation return line Economizer Orifice The economizer consists of a carbon steel shell with internal components designed to prevent liquid carryover to the compressor Liquid refrigerant is admitted through a single calibrated orifice no moving parts which maintains a pressure di...

Страница 25: ...le The microcomputer control system processes the leaving evaporator fluid temperature sensor signal to satisfy the system requirements across the entire load range The controller will load and unload the chiller via control of the stepper motor actuator which drives the inlet guide vanes open and closed The load range can be limited either by a control limitor or by an inlet guide vane limit whic...

Страница 26: ...nd wired to the compressor motor and the control panel The CVGF chiller starter assembly is factory tested Optional remote mounted electromechanical starters are available Isolation Pads Molded neoprene isolation pads are supplied with each chiller for placement under all support points Spring isolators are optionally available Refrigerant and Oil Charge A full charge of oil is supplied with each ...

Страница 27: ...11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 41 0 42 8 44 6 46 4 48 2 50 0 51 8 53 6 55 4 57 2 59 0 60 8 62 6 64 4 66 2 68 0 69 8 71 6 73 4 75 2 77 0 78 8 80 6 82 4 84 2 86 0 87 8 89 6 91 4 93 2 95 0 96 8 98 6 100 4 102 2 104 0 105 8 107 6 109 4 111 2 113 0 114 8 116 6 118 4 120 2 Temperature C or F F 10 0 10 6 11 1 11 7 12 2 ...

Страница 28: ...ane office or e mail us at comfort trane com Trane has a policy of continuous product and data improvement and reserves the right to change design specifications without notice Literature Order Number Date Supersedes CTV PRC001 E4 October 2008 September 2004 ...

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