Specifications

ManualsBrandsTrane ManualsRefrigeratorCG-PRC011-EN Refrigerator

Scroll Liquid Chillers

20 to 60 Tons (60 Hz)

17 to 50 Tons (50 Hz)

Water-Cooled and Condenserless

CG-PRC011-EN

January 2002

Built For the Industrial and Commercial Markets

Summary of content (40 pages)

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Scroll Liquid Chillers 20 to 60 Tons (60 Hz) 17 to 50 Tons (50 Hz) Water-Cooled and Condenserless Built For the Industrial and Commercial Markets January 2002 CG-PRC011-EN
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Features and Benefits The Trane 20-60 Ton Scroll Liquid Chiller More Than Just Another “Improved” Chiller — Advanced Design — Better Reliability — Superior Efficiency — Smarter Microprocessor Control — Better Availability — Easier To Install and Operate Design The Trane scroll compressor is the most advanced compressor in the industry. Control Advanced and complete safety and control algorithms available.
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Contents CG-PRC011-EN Features and Benefits 2 Model Number Description 9 General Data 10 Application Considerations 11 Selection Procedure 12 Performance Adjustment Factors 13 Performance Data 15 Electrical Data 24 Jobsite Connection 26 Controls 28 Dimensional Data 29 Weights 34 Options 35 Typical Wiring Diagrams 36 Features Summary 38 Mechanical Specifications 39 3
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Features and Benefits Standard Features Microprocessor Control Microprocessor control means the scroll chiller maintains chilled water temperature more accurately, resulting in less temperature drift in the building. The microprocessor control also incorporates optimal chiller start-up logic (low and high ambient), load limiting, compressor anti-recycle timing, auto lead/lag function, compressor protection, and many other safety features.
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Features and Benefits ASHRAE Standard 90.1 All Trane chillers meet and exceed the new efficiency levels mandated by ASHRAE Standard 90.1. This new standard requires higher efficiencies than past technologies can deliver. In fact, energy efficiency is so paramount the US Federal Government has adopted standard 90.1. Federal Executive Order mandates energy consuming devices procured must be in the top 25% of their class. In the case of chillers, ASHRAE 90.1 is the product standard for measurement. Risk.
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Features and Benefits Trane Scroll Compressor — Maximum Efficiency with Enhanced Reliability General The scroll compressor has two scrolls. The top scroll is fixed and the bottom scroll orbits. Each scroll has walls in a spiral shape that intermesh. Inlet-First Orbit As the bottom scroll orbits, two refrigerant gas pockets are formed and enclosed. Compression-Second Orbit The refrigerant gas is compressed as the volume is reduced closer to the center of the scroll.
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Features and Benefits Trane Value Means Fast Availability, Easy Installation and Quality Service Packed Stock For Fast Delivery When your project is a fast-track job, Trane can help. A wide range of chillers are stocked and can be shipped soon after receipt of your order. Build To Order Need a special chiller fast? Think Trane scroll chillers. New manufacturing technology and inventory control means the fastest delivery schedule in the industry.
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Features and Benefits The Trane Difference — The Integrated Comfort™ System No Other Microprocessor Does More So You Can Do Less The new microprocessor control system enhances the Trane scroll chiller by providing advanced technology to control chiller operation and associated sensors, actuators, relays and switches. • Operator interface is improved and easy to use. Panel displays all operating and safety codes with complete diagnostic information. Over 40 diagnostics are included.
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Model Number Description Model Number Description CGW E 020 4 C XX H 1,2,3 4 5,6,7 8 9 10,11 12 A 13 Digits 01, 02, 03, – Chiller Series CGW = Water-Cooled Scroll Chiller CCA = Scroll Compressor Chiller Digits 04, – Development Sequence Digits 05, 06, 07 – Nominal Capacity 020 = 20 Tons (Simplex Circuit, 2 Compressors) 025 = 25 Tons (Simplex Circuit, 2 Compressors) 030 = 30 Tons (Simplex Circuit, 2 Compressors) 040 = 40 Tons (Duplex Circuit, 4 Compressors) 050 = 50 Tons (Duplex Circuit, 4 Compressors) 06
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General Data Table GD-1 — General Data — CGWE Water-Cooled Chiller Size Compressor Quantity (1) Nominal Size (tons) (2) Steps of Unloading (%) Evaporator Water Storage (Gallons) (Liters) Min. Flow (GPM) (L/Sec) Max. Flow (GPM) (L/Sec) Condenser Water Storage (Gallons) (Liters) Min. Flow (GPM) (L/Sec) Max. Flow (GPM) (L/Sec) General Unit Refrigerant No. of Independent Refrigerant Circuits Refrigerant (lb) Charge (kg) Oil Charge (Pints) (L) 20 25 30 2 10/10 100,50 2 10/15 100,60 12 45 24 1.5 72 4.
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Application Considerations Unit Location Units should be installed indoors where exposure to rain or water splash is minimal. A level foundation or flooring must be provided which will support at least 150 percent of the operating weight of the unit. The chiller foundation must be rigid to reduce vibration transmission to a minimum. Use of vibration isolators is recommended for applications with sensitive vibration and noise criteria.
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Selection Procedures The chiller capacity tables on the following pages cover the most frequently encountered leaving water temperatures. For temperature drops other than 10°F [5.6°C], refer to Table SP-1, Performance Adjustment Factors, shown below. Additional chiller selections and performance information can be obtained through your local Trane sales office. To select a Trane water-cooled scroll chiller, the following information is required: 1. Design load in tons of refrigeration 2.
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Performance Adjustment Factors Figure PAF-1 – Ethylene Glycol Performance Adjustment Factors Figure PAF-2 – Propylene Glycol Performance Adjustment Factors CG-PRC011-EN 13
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Performance Adjustment Factors Figure PAF-3 – Ethylene Glycol and Propylene Glycol Solution Freezing Points Table PAF-1 – Pressure Drop Correction Factor Leaving Water Temperature 0 10 20 30 40 50 60 0 NA NA NA NA 1.00 1.00 1.00 10 NA NA NA 1.15 1.12 1.09 1.05 Percent Of Ethylene Glycol 20 30 NA NA NA 1.38 1.26 1.34 1.22 1.30 1.19 1.26 1.16 1.23 1.09 1.12 40 1.50 1.46 1.42 1.38 1.34 1.31 1.16 50 1.60 1.55 1.51 1.47 1.42 1.39 1.21 40 1.63 1.55 1.46 1.39 1.33 1.28 1.13 50 1.90 1.74 1.62 1.53 1.45 1.
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Performance Data Full Load Performance Table PD-1 – 60 Hz CGWE Performance Data in English Units Evaporator Leaving Wate Temperature (F) 40 42 44 46 48 50 Unit Size 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 Tons 19.2 23.8 28.3 38.0 47.0 57.7 20.0 24.7 29.4 39.5 48.9 59.9 20.8 25.7 30.6 41.1 50.8 62.1 21.5 26.6 31.7 42.6 52.8 64.4 22.4 27.6 32.9 44.2 54.7 66.7 23.2 28.7 34.1 45.9 56.8 69.1 75 kW 13.8 17.2 20.7 27.3 34.1 42.1 13.
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Performance Data Full Load Performance Table PD-2 – 60 Hz CGWE Performance Data in Metric Units Evaporator Leaving Water Temperature (C) 6 8 10 Unit Size 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 kWo 70.4 87.1 104.0 139.5 172.4 211.0 75.7 93.5 111.4 150.3 185.3 226.0 80.8 99.9 119.0 159.9 197.9 240.7 25 kWi 14.2 17.7 21.2 28.0 35.0 43.2 14.3 17.8 21.4 28.2 35.2 43.5 14.4 17.9 21.5 28.4 35.5 43.8 Entering Condenser Water Temperature (C) 30 COP kWo kWi COP kWo 5.0 67.7 15.5 4.4 64.7 4.
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Performance Data Full Load Performance Table PD-3– 50 Hz CGWE Performance Data in English Units Evaporator Leaving Wate Temperature (F) 42 44 46 48 50 Unit Size 20 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 Tons 19.2 16.8 20.7 24.6 33.2 41.0 50.4 17.4 21.5 25.6 34.5 42.6 52.3 18.1 22.4 26.6 35.8 44.3 54.2 18.8 23.2 27.6 37.2 45.9 56.1 19.5 24.1 28.6 38.6 47.6 58.1 75 kW 13.8 11.1 13.9 16.7 21.9 27.4 33.8 11.1 13.9 16.7 22.0 27.5 33.9 11.2 13.9 16.
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Performance Data Full Load Performance Table PD-4 – 50 Hz CGWE Performance Data in Metric Units Evaporator Leaving Water Temperature (C) 6 8 10 Unit Size 20 20 25 30 40 50 60 20 25 30 40 50 60 20 25 30 40 50 60 kWo 70.4 59.4 73.4 87.3 117.6 145.3 178.4 63.7 78.6 93.5 126.0 155.6 190.4 68.1 84.0 99.9 134.8 166.4 203.0 25 kWi 14.2 11.4 14.2 17.0 22.4 28.0 34.5 11.4 14.3 17.1 22.5 28.2 34.7 11.4 14.3 17.2 22.6 28.3 34.9 Entering Condenser Water Temperature (C) 30 COP kWo kWi COP kWo 5.0 67.7 15.5 4.
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Performance Data Part Load Performance Table PD-5 – Part-Load Performance for CGWE 20-60 Ton – 60 Hz in English Units Unit Size 20 25 30 40 50 60 Tons kW EER Tons kW EER Tons kW EER Tons kW EER Tons kW EER Tons kW EER 100% 19.9 15.2 15.5 24.5 19.0 15.4 29.2 22.8 15.3 39.4 30.1 15.6 48.6 37.6 15.4 59.4 46.5 15.2 75% 14.9 9.4 18.6 18.4 11.6 18.8 21.9 14.1 18.5 29.5 18.7 18.7 36.5 23.6 18.3 44.5 28.3 18.7 50% 9.9 5.3 21.9 12.3 6.5 22.1 14.6 7.8 22.0 19.7 10.3 22.4 24.3 14.4 20.3 29.7 17.4 20.
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Performance Data Full Load Performance Table PD-7 – 60 Hz CCAD Performance Data in English Units Evaporator Leaving Water Temperature (°F) 42 44 46 Unit Size 20 20 25 25 30 30 40 40 50 50 60 60 20 20 25 25 30 30 40 40 50 50 60 60 20 20 25 25 30 30 40 40 50 50 60 60 Condenser Size CAUC-C20 CAUC-C25 CAUC-C25 CAUC-C30 CAUC-C30 CAUC-C40 CAUC-C40 CAUC-C50 CAUC-C50 CAUC-C60 CAUC-C60 CAUC-C80 CAUC-C20 CAUC-C25 CAUC-C25 CAUC-C30 CAUC-C30 CAUC-C40 CAUC-C40 CAUC-C50 CAUC-C50 CAUC-C60 CAUC-C60 CAUC-C80 CAUC-C20
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Performance Data Full Load Performance Table PD-8 – 60 Hz CCAD Performance Data in English Units Evaporator Leaving Water Temperature (°F) 48 50 Unit Size 20 20 25 25 30 30 40 40 50 50 60 60 20 20 25 25 30 30 40 40 50 50 60 60 Condenser Size CAUC-C20 CAUC-C25 CAUC-C25 CAUC-C30 CAUC-C30 CAUC-C40 CAUC-C40 CAUC-C50 CAUC-C50 CAUC-C60 CAUC-C60 CAUC-C80 CAUC-C20 CAUC-C25 CAUC-C25 CAUC-C30 CAUC-C30 CAUC-C40 CAUC-C40 CAUC-C50 CAUC-C50 CAUC-C60 CAUC-C60 CAUC-C80 Tons 21.3 21.7 26.5 27.0 31.6 32.2 42.4 42.
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Performance Data Full Load Performance Table PD-9 – 60 Hz.
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Performance Data Pressure Drops Chart PD-1 – CGWE Evaporator Chart PD-2 – CGWE Condenser CG-PRC011-EN 23
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Electrical Data Table E-1 - Electrical Data for CGWE Water-Cooled Chillers Unit Size 20 25 30 40 50 60 Rated Voltage 200-230/60 380/60 460/60 575/60 400/50 200-230/60 380/60 460/60 575/60 400/50 200-230/60 380/60 460/60 575/60 400/50 200-230/60 380/60 460/60 575/60 400/50 200-230/60 380/60 460/60 575/60 400/50 200-230/60 380/60 460/60 575/60 400/50 Unit Wiring Data Minimum Maximum Circuit Ampacity Fuse Size 77 110 39 50 32 45 29 40 41 50 99 150 51 70 43 60 36 50 52 70 117 150 61 80 52 70 41 50 61 8
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Electrical Data Table E-2 - Electrical Data for High Temperature Condenser CGWE Chillers and CCAD Compressor-Chillers Unit Size 20 25 30 40 50 60 Rated Voltage 200-230/60 380/60 460/60 575/60 200-230/60 380/60 460/60 575/60 200-230/60 380/60 460/60 575/60 200-230/60 380/60 460/60 575/60 200-230/60 380/60 460/60 575/60 200-230/60 380/60 460/60 575/60 Unit Wiring Data Minimum Maximum Circuit Ampacity Fuse Size 88 125 45 60 39 50 32 45 112 150 59 80 50 70 41 60 131 175 70 100 59 80 48 60 166 200 85 100
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Jobsite Connections NOTES: 1. DASHED LINES INDICATE RECOMMENDED FIELD WIRING BY OTHERS. PHANTOM LINES INDICATE ALTERNATE CIRCUITRY OR AVAILABLE SALES OPTION. CHECK SALES ORDER TO DETERMINE IF WIRING IS REQUIRED FOR SPECIFIC OPTIONS. 2. ALL THREE PHASE MOTORS SUPPLIED WITH THE UNIT ARE PROTECTED UNDER PRIMARY SINGLE PHASE FAILURE CONDITIONS. 3. CAUTION - DO NOT ENERGIZE UNIT UNTIL CHECK OUT AND START-UP PROCEDURES HAVE BEEN COMPLETED. 4.
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Jobsite Connections WIRING : OPTIONAL WIRING: 10. ALL FIELD WIRING MUST BE IN ACCORDANCE WITH THE NATIONAL ELECTRICAL CODE (NEC), STATE, AND LOCAL REQUIREMENTS. OUTSIDE THE UNITED STATES, OTHER COUNTRIES APPLICABLE NATIONAL AND/OR LOCAL REQUIREMENTS SHALL APPLY. 14 3 WIRES. 115 VAC CIRCUIT. SEPARATE 115 VAC POWER SUPPLY IS REQUIRED. LOAD NOT TO EXCEED 115 VA SEALED, 1150 VA INRUSH. REQUIRED WIRING: 16 2 WIRES. 115 VAC CIRCUIT. MINIMUM CONTACT RATING AT 115 VAC - 6.9 VA INRUSH, 1.3 VA SEALED.
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Controls A microcomputer-based controller controls the CGWE and CCAD scroll chiller. The microcomputer controller provides better control than past controls with several new, important benefits. Customized Control The microcomputer-based controller allows Trane to customize controls around the chiller application and the specific components used in the scroll chiller. For instance, the compressor protection system is specifically designed for the Trane scroll compressor.
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Dimensional Data Size 20 Ton 25 Ton 30 Ton A 2" (51) 2" (51) 2 1/2" (64) B 8 1/2" (216) 8 1/2" (216) 7 3/4" (197) C 4'-8" (1423) 4'-8" (1423) 4'-6 1/2" (1384) CGWE 20-30 Ton D 1'-3 3/8" (391) 1'-3 3/8" (391) 1'-5 3/8" (441) E 4 1/8" (105) 4 1/8" (105) 2 1/4" (57) F 8 5/8" (218) 8 5/8" (218) 12" (305) G 5 5/8" (143) 5 5/8" (143) 8" (203) H 2' 7 3/8" (797) 2' 7 3/8" (797) 2' 8 3/16" (818) Notes: 1. Dimensions in ( ) are in millimeters. 2. Dimensional tolerance ± 1/4” (3).
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Dimensional Data Size 40 Ton 50 Ton A 2 1/2" (64) 3" (76) B 1'-3 3/4" (400) 1'-3 1/2" (394) CGWE 40-50 Ton C 6'-5 1/2" (1968) 6'-5" (1956) D 1'-4 1/4" (413) 1'-6 1/8" (480) E 4 3/8" (111) 2 1/2" (64) Notes: 1. Dimensions in ( ) are in millimeters. 2. Dimensional tolerance ± 1/4” (3).
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Dimensional Data CG-PRC011-EN CGWE 60 Ton 31
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Dimensional Data Unit Size 20 Ton 25 Ton 30 Ton A 8 1/2” 8 1/2” 7 3/4” B 3’-11 1/2” 3’-11 1/2” 3’-10 3/4” CCAD 20-30 Ton English Dimensions C D 2” 2’-0” 2” 1’-11 3/4” 2 1/2” 2’-1 7/8” Metric Dimensions (mm) Unit Size A B C D 20 Ton 216 1207 51 610 25 Ton 216 1207 51 603 30 Ton 197 1187 64 657 Notes: 1. Add 3/4” (19 mm) for units with insulation. 2. Dimensional tolerance ± 1/4” (3 mm). 3. Tube installation at either end of evaporator.
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Dimensional Data Unit Size 40 Ton 50 Ton 60 Ton A 5’-1 3/4” 5’-1 1/2” 5’-1 1/2” B 1’-3 3/4” 1’-3 1/2” 1’-3 1/2” CCAD 40-60 Ton English Dimensions C 1’-11 1/4” 2’-1 1/8” 2’-0 7/8” Metric Dimensions (mm) Unit Size A B C 40 Ton 1568 400 591 50 Ton 1562 394 638 60 Ton 1562 394 632 Notes: 1. Add 3/4” (19 mm) for units with insulation. 2. Dimensional tolerance ± 1/4” (3 mm). 3. Tube installation at either end of evaporator.
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Weights Table W-1 – Weights, CGWE Chillers Unit Operating Wt. Shipping Wt. (lb.) (kg) (lb.) (kg) 20 1454 660 1282 582 25 1517 689 1360 618 30 2009 912 1774 806 40 2506 1138 2126 965 50 2727 1238 2376 1079 60 3753 1704 3224 1464 30 1274 579 1836 834 40 1509 685 1792 814 50 1808 821 2166 984 60 1982 900 2494 1133 Table W-2 – Weights, CCAD Compressor-Chillers Unit Operating Wt. Shipping Wt. 34 (lb.) (kg) (lb.
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Options Options Hot Gas Bypass: Hot gas bypass option allows unit operation below the minimum step of unit unloading. The regulator valve, along with all associated refrigerant piping and electrical wiring, are factory installed and tested on one refrigeration circuit. Unit does not start in hot gas bypass mode. If the unit operates in bypass mode for 30 minutes without a call for cooling, it will pump down and shut off. Unit starts immediately upon a further call for cooling.
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Typical Wiring Diagrams NOTES: 1. DASHED LINES INDICATE RECOMMENDED FIELD WIRING BY OTHERS. PHANTOM LINES INDICATE ALTERNATE CIRCUITRY OR AVAILABLE SALES OPTION. CHECK SALES ORDER TO DETERMINE IF WIRING IS REQUIRED FOR SPECIFIC OPTIONS. 2. ALL THREE PHASE MOTORS SUPPLIED WITH THE UNIT ARE PROTECTED UNDER PRIMARY SINGLE PHASE FAILURE CONDITIONS. 4. CAUTION - DO NOT ENERGIZE UNIT UNTIL CHECK OUT AND START-UP PROCEDURES HAVE BEEN COMPLETED. 5. USED ON 40, 50 AND 60 TON UNITS ONLY. 6.
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Typical Wiring Diagrams CG-PRC011-EN 37
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Features Summary Advanced Design for Efficiency and Reliability • Trane scroll compressor has 64 percent fewer parts than equal capacity reciprocating compressors for greater reliability. Part load efficiency is unmatched by any reciprocating compressor. • Factory installed microprocessor controls provides accurate chilled water temperature control.
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Mechanical Specifications Water-Cooled Liquid Chillers and Compressor Chillers CGWE and CCAD Models 20 to 60 Tons General All scroll chillers are factory tested and monitored for power and control operation (CGWE only). CGWE units ship with a full operating charge of refrigerant and oil. Exposed surfaces are painted with an air-dry beige primerfinisher prior to shipment.
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Trane An American Standard Company www.trane.com For more information contact your local sales office or e-mail us at comfort@trane.com Literature Order Number CG-PRC011-EN File Number CG-PRC011-EN-0102 Supersedes New Stocking Location La Crosse Since Trane has a policy of continuous product and product data improvement, it reserves the right to change design and specifications without notice.