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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 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. Reliability 64 percent fewer compressor parts, compared to reciprocating compressors, mean long and reliable life. Availability Fast ship cycles on both stock and builtto-order specials. Efficiency CGWE scroll chillers meet and exceed ASHRAE Standard 90.1 full and part load efficiencies. Part load efficiencies are simply unmatched by reciprocating chillers. Installation Small unit size, factory wiring, easy lifting provisions, and start-up control logic mean quick and easy setup. Chillers fit through standard singlewidth door. Operation Smart safety features and over 40 diagnostic displays mean easy and virtually trouble-free operation. Power Supply Monitor Protects Compressors From Phase Loss, Phase Reversal, Phase Imbalance, Incorrect Phase Sequence and Under and Over Voltage Control Panel Rugged Trane Scroll Compressor Microprocessor Operator Interface Condenser Leaving Water Piping Evaporator Leaving Water Piping Condenser Entering Water Piping © 2002 American Standard Inc. All rights reserved. CG-PRC011-EN 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 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. The “smart” safety features provide complete fault protection without nuisance tripping. BENEFIT: consistent, reliable operation, longer life. Leaving Chilled Water Temperature Control The microprocessor actually monitors temperature and the rate of change over time, effectively controlling compressor loading for efficient chiller operation. BENEFIT: accurate and efficient building comfort, less energy wasted. Diagnostics and Display The microprocessor’s operator interface is a menu-driven digital display. The display provides temperatures, pressures, setpoints and diagnostics readouts. Flashing display notifies operator of fault condition and diagnostics are saved until manually reset. Compressor Protection All compressors are individually protected against starting and running overload, under and over voltages, phase loss, phase reversal, high winding temperature and rapid recycling. BENEFIT: long unit life and added reliability. External Control Several external contacts are provided for custom control requirements including time of day scheduling and kW demand limiting. BENEFIT: more standard control and more flexible owner upgrades. Other Standard Features • Control power transformer • Auto lead/lag (on or off) • Solid-state motor protection • Insulation (Armaflex II or equal) • Evaporator and condenser water pump interlocks • Filter-dryer • Built-in loss of chilled water flow sensors • Chillers fit through standard single width door. Options • Trane Integrated Comfort™ systems communication • Generic building automation systems (BAS) interface • Chilled water reset (ambient, zone, return) • Ice making • Hot gas bypass • Remote display/control panel • Remote running indication and alarm contact • Unit-mounted disconnect • Gauges • Sound Attenuation • Neoprene Isolators • Compressor cycle counter/hour meter • Water regulating valves • Condenser water temperature sensors BENEFIT: easy troubleshooting and control The standard ARI rating condition (54/44°F and 85°F/3.0 gpm per ton) and IPLV are ARI certified. All other ratings, including the following, are outside the scope of the certification program and are excluded: • Glycol. • 50 Hz. • Condenserless models CCAD. 4 Water Chiller Systems Business Unit CG-PRC011-EN 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. Not only has ASHRAE 90.1 been adopted by the US Federal Government, it’s expected to be adopted domestically, if not globally, in the future. Make sure that your chillers as well as your entire HVAC system complies, or you may be caught retrofitting your project with new equipment and paying extra design dollars if the code changes during construction. Trane’s CGWE was designed with the end user’s requirements in mind. Efficiency and reliability were primary design concerns with this latest generation machine. Leading in Efficiency and Reliability with State-Of-The-Art Scroll Compressor Technology Efficiency The energy efficiency of the scroll chiller results in energy costs lower than any other comparable chiller. Full load efficiencies are improved beyond reciprocating chillers, but part load efficiencies are simply unmatched by any other manufacturer. Reliability The Trane scroll chiller with many new improvements, now brings an exciting new compressor to the commercial market — the Trane scroll compressor. Trane has designed the scroll compressor to be a leader in reliability. HERE’S HOW: Superior efficiencies are obtained by combining many of the traditional scroll chiller energy efficient features with the Trane scroll compressor technology. HERE’S HOW: • Simple design with 64 percent fewer parts than equal capacity reciprocating compressor. • Scroll compliance allows liquid and dirt to pass through without damaging compressor (liquid slugging resistant). • Advanced microelectronics protect both compressor and motor from typical electrical fault conditions. • Scroll compressors have less than a third the torque variations of a reciprocating compressor. • Years of laboratory testing have optimized compressor and chiller systems reliability. • Water-cooled scroll chillers are factory tested. • Scroll compressor’s positive displacement design • Dual refrigerant circuits (40-60 ton units) • Multiple compressors • Optimum system design • Reduced friction • No valves • Advanced heat transfer surfaces Scroll Chiller Energy Usage Savings Operating Torque Typical Reciprocating Chiller 10-20% Annual Energy Savings Kilowatt Hours Scroll Chiller Chiller Load (%) Chart illustrates low torque variation of the Trane scroll compressor vs reciprocating compressor. CG-PRC011-EN Graph illustrates Trane scroll chiller’s superior annual energy costs vs typical reciprocating chillers. 5 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. Discharge-Third Orbit The gas is compressed further and discharged through a small port in the center of the fixed scroll. Scroll Principal Components This is a cutaway view of a hermetic, scroll compressor, showing the relative positions of the principal components. Shown is a Trane 10-ton, 3600 rpm, 60 Hz [3000 rpm, 50 Hz] scroll compressor as an example. The principle of operation of this example compressor is as follows: The suction gas is drawn into the compressor at A. The gas then passes through the gap between the rotor and stator, B, cooling the motor, before it enters the compressor housing, C. Here, the velocity of the gas is reduced, causing a separation of the entrained oil from the gas stream. The gas then enters the intake chamber, D, that encircles the scrolls. Finally, the suction gas is drawn into the scroll assembly where it is compressed and discharged into the dome of the compressor. The dome of this example compressor acts as a hot gas muffler which dampens the pulsations before the gas enters the discharge line, E. 6 CG-PRC011-EN 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. Wide array of standard options provides the right chiller for the job fast. Installation • Only one power connection hook-up — for fast and inexpensive installation. • Integrated Comfort™ system means only single pair connections are required for control interfaces and therefore, lower total installation costs. • Factory refrigerant and oil charged units help speed installation. • All units easily fit through a standard single width door. • Built-in chilled water flow sensors mean no field-installed flow switches are required. • Microprocessor displays both entering and leaving chilled water temperatures. No chilled water thermometers are required. Easy Serviceability Trane 20 through 60 ton scroll chillers are designed with service personnel in mind. All major components are replaceable without complete unit disassembly. Plus, the microprocessor control panel provides diagnostic capability to aid service personnel in analyzing problems. Therefore, if a problem does occur, the chiller can be up and running in a shorter period of time. Single-Source Responsibility A wide range of products designed for complete compatibility are available with the scroll chillers. Your entire building comfort system can be completed using components from Trane. The Added Value of Applications Expertise With the scroll chiller you get applications expertise and know-how from a Trane sales engineer. Trane has more than 1500 sales engineers across the country — each one a degreed engineer. Trane sales engineers have creative ideas and solutions to difficult building comfort system design problems. You can take full advantage of their knowledge in designing a quality, dependable comfort system. There’s more. Your Trane sales engineer is backed by the Trane world headquarters staff of applications experts, regarded as the best in the industry. The C.D.S. Network provides Trane sales engineers — and many independent design and consulting firms — direct access to many comfort system application, selection and design programs. You get a quality chiller, properly selected and applied in a properly designed system. That means a comfort system that works, the first time! Quick and Complete Submittals The Trane commitment to value-added products doesn’t stop at just the products, we are committed to total customer satisfaction. Part of this commitment is to provide quick, complete, readable and accurate drawings. CG-PRC011-EN 7 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. • Smart safety features shut down cooling only if absolutely necessary, preventing nuisance safety trip outs. • Microprocessor easily interfaces with Trane Tracer™ building management computer for Integrated Comfort system benefits; all with a single twisted pair wire! Twisted Pair Communications Connects To: Trane Integrated Comfort Systems (No System Control Panel (SCP) is necessary) Trane Integrated Comfort System The Future Is Now! Simple • Factory packaging for smooth start-up. • Easy to install with only a single twisted wire pair to the central Tracer building management system. • Constant, comprehensive monitoring tracks equipment operation and takes control to keep tenants comfortable. • Optional override buttons on each floor allow tenants to have control after hours. After-hours use is automatically logged to allow tenant billing. • Review building performance at a glance with automatically generated reports and logs. • Enhanced service and building management capability through remote diagnostics and control. • Trane Building Management Network allows control from across town or across the country. A Dependable System From A Single, Reliable Source • System design, equipment supply and service support all available from Trane. • Factory testing of all Trane equipment ensures the system works. 8 At A Lower Cost • Factory packaged controls and sensors reduce jobsite labor costs while assuring proper installation. • Single twisted pair wire communication technology dramatically simplifies installation and reduces jobsite installation costs. • Because the unit has been factory tested, there are no system problems; allowing smoother start-up, reducing follow-up costs. • Building block approach allows you to change your system without redundancy and wasted cost. No Bad Jobs There is another benefit from singlesource responsibility and the Trane Integrated Comfort systems. With Trane ICS, you get a single-source supplier of the system — from the chillers to the air handlers to the controls. Trane is the only HVAC manufacturer which can provide the entire system. For more information on how Trane scroll chillers and an Integrated Comfort system can benefit your next HVAC project, contact your nearest Trane sales office. CG-PRC011-EN 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) 060 = 60 Tons (Duplex Circuit, 4 Compressors) Digit 08 – Unit Voltage D = 380/60/3 G = 200-230/60/3 N = 400/50/3 S = Special Customer Option 4 = 460/60/3 5 = 575/60/3 Digit 09 – Cooling Type C = Standard Cooling S = Special Customer Option Digit 10, 11 – Design Sequence XX = Factory Assigned Digit 12 – Condenser Configuration H = High Efficiency Condenser 0 = No Unit Condenser (CCA, CUA Units) Digit 13 – Control Interface A = Standard Microprocessor Interface B = Multi-Wire Interface (GBAS) C = Chilled Water Reset Return Water, No Comm. D = Chilled Water Reset – Zone Air, No Comm. E = Ice-Making Control F = Remote Display G = Chilled Water Reset – Outside Air S = Special Customer Options T = Bi-Directional Interface (Tracer) T 14 1 15 0 0 16 17 0 18 0 19 0 20 L A 21 22+ Digit 15 – Evaporator Leaving Temperature 1 = Standard 40-60 F 2 = Low Temperature 25-39 F 3 = Low Temperature 10-25 F 4 = Icemaking 20-60 F S = Special Customer Option Digit 16 – Remote Alarm Contacts 0 = No Remote Alarm Contacts R = Remote Alarm Contacts Digit 17 – Condenser Entering Temperature 0 = Remote Condenser 1 = Standard Temperature 60-90 F 4 = High Temperature 90-130 F S = Special Customer Option Digit 18 – Evap Tube Type F = Standard Finned Tubes S = Special Customer Option Digit 19 – Cond Tube Type 0 = Remote Cond F = Standard Finned Tubes S = Special Customer Option Digit 20 – Hot Gas Bypass 0 = Without Hot Gas Bypass B = With Hot Gas Bypass Digit 21 – Water Box Orientation L = Left Hand R = Right Hand S = Special Customer Option Digit 22+ – Add-on Options A = Unit Sound Attenuator C = CSA Listing G = Unit Gauges H = Hour Meter and Cycle Counter L = Low Ambient Lock-Out Thermostat P = Phase Reversal Protection R = Remote Display T = Tracer Monitoring Package U = UL Listing Digit 14 – Panel Connections D = Disconnect Switch S = Special Customer Option T = Terminal Block CG-PRC011-EN 9 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 4.5 11 42 30 1.9 90 5.7 16 61 36 2.3 108 6.8 8.9 33.7 30 1.9 90 5.7 8.0 30.3 36 2.3 108 6.8 R-22 1 50 22.7 16 7.6 40 50 60 2/2 10-15/10-15 100,80,60,30 2/2 15-15/15-15 100,75,50,25 13 49 48 3.0 144 9.1 21 80 60 3.8 180 11.4 40 151 84 4.7 252 17.3 11.7 44.3 50 3.2 146 9.2 19.9 75.3 60 3.8 180 11.4 18.2 68.9 72 4.5 216 13.6 23.5 88.9 90 5.7 325 20.5 R-22 R-22 R-22 R-22 R-22 1 50 22.7 22 10.4 1 90 40.8 28 13.2 2 50/50 22.7/22.7 16/16 7.6/7.6 2 50/50 22.7/22.7 22/22 10.4/10.4 2 75/75 34/34 28/28 13.3/13.3 50 60 2/2 10-15/10-15 100,80,60,30 2/2 15-15/15-15 100,75,50,25 2 2/2 15/15 10-10/10-10 100,50 100,75,50,25 Notes 1. Data containing information on two circuits shown as follows: CKT 1/CKT 2 2. Nominal compressor sizes based on 69 Hz. Table GD-2 — General Data — CCAD Compressor-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) General Unit Refrigerant No. of Independent Refrigerant Circuits Refrigerant (lb) Charge (kg) Oil Charge (Pints) (L) 20 25 30 40 2 10/10 100,50 2 10/15 100,60 12 45 24 1.5 72 4.5 11 42 30 1.9 90 5.7 16 61 36 2.3 108 6.8 13 49 48 3.0 144 9.1 21 80 60 3.8 180 11.4 19 72 84 4.7 252 17.3 R-22 R-22 R-22 R-22 R-22 R-22 1 6 2.7 16 7.6 1 8 3.6 22 10.4 1 12 5.4 28 13.2 2 6/6 2.7/2.7 16/16 7.6/7.6 2 8/8 3.6/3.6 22/22 10.4/10.4 2 12/12 5.5/5.5 28/28 13.3/13.3 2 2/2 15/15 10-10/10-10 100,50 100,75,50,25 Notes: 1. Data containing information on two circuits shown as follows: CKT 1/CKT 2 2. Nominal compressor sizes based on 69 Hz. 10 CG-PRC011-EN 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. Allow service clearance for compressor removal as well as evaporator and condenser tube removal. Condenser Water Limitations Water-cooled scroll chillers start and operate satisfactorily over a range of load conditions with uncontrolled entering water temperature. Reducing the condenser water temperature is an effective method of lowering the power input required. However, by reducing the condenser water temperature beyond certain limits, the effect causes a reduction in the pressure drop across the thermal expansion valve to a point when system instability may occur. In general, continuous machine operation with entering condenser water temperature below 60°F [15.5°C] is not recommended. When the condenser water temperature is expected to drop below 60°F [15.5°C], it is recommended that some form of condenser water temperature control be used to ensure optimal machine performance. CG-PRC011-EN Water Treatment Use of untreated or improperly treated water in chillers may result in scaling, erosion, corrosion, algae or slime. It is recommended that the services of a qualified water treatment specialist be engaged to determine what treatment, if any, is advisable. Trane assumes no responsibility for the results of untreated, or improperly treated water. Water Pumps Avoid specifying or using 3600 rpm, 60 Hz [3000 rpm, 50 Hz] condenser water and chilled water pumps. Such pumps may operate with objectional noise and vibration. In addition, a low frequency beat may occur due to the slight difference in operating rpm between water pumps and scroll compressor motors. Where noise and vibration-free operation is important, Trane encourages the use of 1750 rpm, 60 Hz [1450 rpm, 50 Hz] pumps. Remote Condenser Remote condensers should be located as close as possible to the chiller to ensure minimum pressure drops of discharge refrigerant. If non-Trane condensers are provided, a subcooling circuit must be provided in order to achieve cataloged performances (16°F [-8.9°C] subcooling). 11 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. Design chilled water temperature drop 3. Design leaving chilled water temperature 4. Entering condenser water temperature Evaporator flow rate (gpm) can be determined by using the following formula: gpm = Tons x 24 Chilled Water DT (°F) Condenser flow rate (gpm) can be determined by using the following formula: gpm = 24 x (tons + (0.285 x compressor kW) Condenser Water DT (°F) Evap. GPM 1.231 1.000 0.829 0.714 0.628 kW 1.000 1.000 1.001 1.001 1.002 1. From Table PD-2 (Performance Data), a CGWE 40 at the given conditions will produce 39.4 tons with a compressor power input of 30.3 kW and a unit EER of 15.6. 2. To determine the evaporator and condenser water pressure drops, the flow rates (gpm) must be determined. Using the formula above, this unit would require an evaporator flow rate of 95 gpm and a condenser flow rate of 115 gpm. (Compressor kW is found in the same table as the capacity.) The Evaporator Pressure Drop Curve, Figure PD-1, indicates that 95 gpm through a 40 ton evaporator results in a pressure drop of 13.8 feet of water. The Condenser Pressure Drop curve, Chart PD-2, indicates 115 gpm through a 40 ton condenser results in a pressure drop of 14 feet of water. 3. The final unit selection is: — Qty (1) CGWE 40 Table SP-1 – Performance Adjustment Factors Fouling Water Factor Delta T Capacity 8 0.997 0.00010 10 1.000 12 1.007 14 1.012 16 1.017 Scroll Liquid Chiller — (CGWE) — Selection Example: Given: System Load = 40 tons Leaving Chilled Water Temperature (LCWT) = 44°F [6.7°C] Entering Condenser Water Temperature (EWT) = 85°F [29.4°C] Leaving Condenser Water Temperature (LWT) = 95°F [35°C] Chilled Water Temperature Drop = 10°F [5.6°C] — Cooling Capacity = 39.4 tons Cond. GPM 0.997 1.000 1.006 1.010 1.014 Note: This selection procedure is for water only as the solution. — Entering/Leaving Chilled Water Temperatures = 54/44°F [12.2/6.7°C] Compressor Chiller – (CCAD) – Selection Example: Select the unit for the following conditions: A compressor chiller is required to produce 45 tons when matched with an air-cooled condenser. The leaving chilled water temperature is 44°F [6.7°C]. The evaporator temperature differential is 10°F [5.6°C]. The ambient temperature is 95°F [35°C]. 1. Select the nominal unit size. The performance data is tabulated by leaving chilled water temperature. For example, the standard unit capacities at 44°F [6.7°C] leaving chilled water temperature are found on page 21. The system that best meets the tonnage requirement is a CCAD 50 matched with a CAUC C50. The unit capacity is 47.1 tons with a kW input of 56.3. The compressor chiller EER is 10.0. 2. Calculate the required chilled water flow rate. 3. gpm = Tons x 24 Chilled Water DT (°F) From this example, gpm = 47.1 x 24 = 113 10 4. Determine the evaporator water pressure drop. The evaporator water pressure drop is located on page 22. Entering the evaporator chart at 113 gpm, the pressure drop for a CCAD 50 evaporator is 7.9 feet. 5. Unit Selection — Evaporator water pressure drop = 13.8 feet The above procedure shows the proper selection for this example is a CCAD 50 with a CAUB C50 condenser operating as follows: — Cooling water flow = 115 gpm — Capacity = 47.1 — Condenser water pressure drop = 14 feet — Entering/leaving chilled water temperature = 54/44°F [12.2/6.7°C] — Compressor power input = 30.3 kW — Chilled water flow rate = 113 gpm — Unit EER = 15.6 — Evaporator water pressure drop = 7.9 feet — Chilled water flow rate = 95 gpm — Compressor power input = 56.3 — Unit EER = 10.0 12 CG-PRC011-EN Performance Adjustment Factors Figure PAF-1 – Ethylene Glycol Performance Adjustment Factors Figure PAF-2 – Propylene Glycol Performance Adjustment Factors CG-PRC011-EN 13 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 1.39 1.20 Table PAF-2 – Pressure Drop Correction Factor Leaving Water Temperature 0 10 20 30 40 50 60 14 0 NA NA NA NA 1.00 1.00 1.00 10 NA NA NA 1.11 1.07 1.04 1.00 Percent Of Propylene Glycol 20 30 NA NA NA 1.42 1.24 1.34 1.19 1.28 1.15 1.23 1.11 1.19 1.03 1.08 CG-PRC011-EN 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 13.9 17.3 20.8 27.4 34.2 42.3 13.9 17.4 20.8 27.5 34.4 42.5 14.0 17.4 20.9 27.6 34.5 42.6 14.0 17.5 21.0 27.8 34.6 42.8 14.1 17.6 21.1 27.9 34.8 43.0 EER 16.7 16.5 16.4 16.8 16.6 16.4 17.3 17.1 17.0 17.3 17.2 17.0 17.3 17.7 17.6 17.9 17.7 17.6 18.5 18.3 18.2 18.5 18.4 18.1 19.1 19.0 18.8 19.1 19.0 18.7 19.7 19.6 19.5 19.8 19.6 19.3 Tons 19.0 23.2 27.6 37.2 46.0 56.4 19.8 24.2 28.7 38.7 47.8 58.5 20.5 25.1 29.9 40.2 49.7 60.7 21.3 26.1 31.0 41.7 51.6 63.0 22.1 27.0 32.2 43.3 53.6 65.2 22.9 28.0 33.4 44.9 55.5 67.6 80 kW 14.5 18.1 21.7 28.7 35.8 44.2 14.6 18.2 21.8 28.8 36.0 44.4 14.7 18.3 21.9 28.9 35.1 44.6 14.7 18.3 22.0 29.0 36.3 44.8 14.8 18.4 22.1 29.2 35.4 45.0 14.8 18.5 22.1 29.3 36.5 45.1 Entering Condenser Water Temperature (F) 85 EER Tons kW EER Tons 15.7 18.6 15.4 14.6 18.1 15.4 22.7 19.1 14.3 22.1 15.3 27.0 22.9 14.1 26.3 15.6 36.5 30.2 14.5 35.5 15.4 44.9 37.7 14.3 43.8 15.3 55.0 46.5 14.2 53.7 16.3 19.3 15.4 15.1 18.9 15.9 23.6 19.2 14.8 23.0 15.8 28.0 23.0 14.7 27.3 16.1 37.8 30.3 15.0 36.9 16.0 46.7 37.9 14.8 45.6 15.8 57.2 46.7 14.7 55.7 16.8 19.9 15.4 15.5 19.6 16.5 24.5 19.1 15.4 23.9 16.4 29.2 22.9 15.3 28.4 16.7 39.4 30.3 15.6 38.4 16.5 48.6 37.8 15.4 47.4 16.3 59.4 46.8 15.2 57.9 17.4 20.9 15.5 16.2 20.4 17.1 25.5 19.3 15.8 24.9 16.9 30.3 23.1 15.7 29.5 17.3 40.8 30.6 16.0 39.9 17.1 50.4 38.2 15.9 49.2 16.9 61.5 47.1 15.7 60.0 18.0 21.6 15.6 16.7 21.1 17.6 26.4 19.4 16.4 25.8 17.5 31.4 23.2 16.2 30.7 17.8 42.4 30.7 16.6 41.4 17.7 52.3 38.3 16.4 51.1 17.4 63.7 47.3 16.2 62.2 18.6 22.4 15.6 17.2 21.9 18.2 27.4 19.4 16.9 26.8 18.1 32.6 23.3 16.8 31.8 18.4 43.9 30.8 17.1 42.9 18.2 54.3 38.5 16.9 53.0 18.0 66.0 47.5 16.7 64.5 90 kW 16.1 20.1 24.1 31.8 39.7 49.0 16.2 20.2 24.2 32.0 39.9 49.2 16.3 20.3 24.3 32.1 40.1 49.4 16.3 20.3 24.4 32.3 40.2 49.6 16.4 20.4 24.5 32.4 40.4 49.8 16.5 20.5 24.6 32.5 40.5 50.0 EER 13.5 13.2 13.1 13.4 13.2 13.1 14.0 13.7 13.6 13.9 13.7 13.6 14.5 14.2 14.0 14.4 14.2 14.1 15.0 14.7 14.5 14.8 14.7 14.5 15.5 15.2 15.0 15.3 15.2 15.0 16.0 15.7 15.6 15.8 15.7 15.5 Tons 17.7 21.6 25.6 34.6 42.7 52.3 18.4 22.4 26.6 36.0 44.4 54.3 19.1 23.3 27.7 37.4 46.2 56.4 19.9 24.2 28.7 38.9 48.0 58.5 20.6 25.2 29.9 40.4 49.8 60.7 21.4 26.1 31.0 41.9 51.7 62.9 95 kW 17.1 21.2 25.4 33.6 41.0 51.7 17.1 21.3 25.5 33.8 42.1 51.9 17.2 21.4 25.6 33.9 42.3 52.1 17.3 21.5 25.7 34.1 42.4 52.3 17.3 21.6 25.8 34.2 42.6 52.5 17.4 21.6 25.0 34.3 42.8 52.8 EER 12.4 12.2 12.1 12.4 12.2 12.1 12.9 12.6 12.5 12.8 12.7 12.6 12.9 13.1 13.0 13.3 13.1 13.0 13.8 13.5 13.4 13.7 13.6 13.4 14.3 14.0 13.9 14.2 14.0 13.9 14.8 14.5 14.4 14.6 14.5 14.3 Notes: 1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.0001 in the evaporator and 0.00025 in the condenser. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kW input is for compressors only. 4. EER = Energy Efficiency Ratio (Btu/watt-hout). Power inputs include compressors and control power. 5. Ratings are based on an evaporator temperature drop of 10°F. 6. Interpolation between points is permissible. Extrapolation is not permitted. CG-PRC011-EN 15 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 4.9 83.5 19.4 4.3 79.8 4.9 99.6 23.2 4.3 95.1 5.0 133.9 30.7 4.4 128.1 4.9 165.3 38.3 4.3 157.9 4.9 202.2 47.3 4.3 193.1 5.3 72.7 15.7 4.6 69.6 5.3 89.8 19.5 4.6 85.8 5.2 106.8 23.4 4.6 102.0 5.3 144.5 30.9 4.7 138.3 5.3 177.7 38.6 4.6 169.9 5.2 216.8 47.6 4.6 207.2 5.6 77.7 15.8 21.7 74.4 5.6 95.9 19.6 21.5 91.8 5.5 114.1 23.6 21.4 109.1 5.6 153.8 31.2 21.8 147.3 5.6 185.9 35.2 23.3 181.7 5.5 231.0 48.0 21.2 221.0 35 kWi 17.1 21.8 25.6 33.8 42.2 52.0 17.3 21.5 25.7 34.1 42.5 52.4 17.4 21.6 25.9 34.3 42.8 52.8 COP 3.8 3.7 3.7 3.8 3.7 3.7 4.0 4.0 4.0 4.1 4.0 4.0 4.3 4.8 4.2 4.3 4.2 4.2 Notes: 1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.0000176 in the evaporator and 0.000044 in the condenser. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kWi input is for compressors only. 4. COP = Coefficient of Performance (kWo/total kW). Total kW include compressors and control power. 5. Ratings are based on an evaporator temperature drop of 5.6 C. 6. Interpolation between points is permissible. Extrapolation is not permitted. 16 CG-PRC011-EN 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 16.7 22.0 27.6 34.0 11.2 14.0 16.8 22.0 27.6 34.1 11.2 14.0 16.8 22.1 27.7 34.2 EER 16.7 18.1 17.9 17.7 18.2 17.9 17.9 18.8 18.6 18.4 18.9 18.6 18.5 19.5 19.2 19.1 19.6 19.3 19.1 20.2 19.9 19.7 20.3 20.0 19.8 20.9 20.6 20.4 21.0 20.7 20.4 Tons 19.0 16.4 20.3 24.1 32.5 40.1 49.3 17.1 21.1 25.1 33.8 41.7 51.2 17.7 21.9 26.0 35.1 43.3 53.1 18.4 22.7 27.0 36.4 45.0 55.0 19.1 23.6 28.0 37.8 46.7 57.0 80 kW 14.5 11.7 14.6 17.5 23.1 28.9 35.6 11.7 14.7 17.6 23.2 29.0 35.7 11.8 14.7 17.6 23.2 29.0 35.8 11.8 14.7 17.7 23.2 29.1 35.9 11.8 14.8 17.7 23.3 29.1 36.0 Entering Condenser Water Temperature (F) 85 EER Tons kW EER Tons 15.7 18.6 15.4 14.6 18.1 16.8 16.0 12.4 15.5 15.6 16.6 19.8 15.5 15.4 19.4 16.5 23.6 18.5 15.3 23.0 16.9 31.8 24.4 15.6 31.0 16.7 39.2 30.5 15.5 38.3 16.7 48.2 37.5 15.4 47.1 17.4 16.7 12.4 16.1 16.3 17.3 20.6 15.5 16.0 20.1 17.1 24.5 18.5 15.9 24.0 17.5 33.0 24.5 16.2 32.2 17.3 40.8 30.6 16.0 39.9 17.2 50.1 37.6 16.0 48.9 18.1 17.3 12.4 16.7 16.9 17.9 21.4 15.5 16.6 20.9 17.7 25.5 18.6 16.5 24.9 18.2 34.3 24.5 16.8 33.5 17.9 42.4 30.6 16.6 41.4 17.8 51.9 37.7 16.5 50.8 18.8 18.0 12.5 17.3 17.6 18.5 22.2 15.5 17.2 21.7 18.4 26.5 18.6 17.0 25.9 18.8 35.6 24.6 17.4 34.8 18.6 44.0 30.7 17.2 43.0 18.4 53.9 37.8 17.1 52.6 19.4 18.7 12.5 18.0 18.3 19.2 23.1 15.6 17.8 22.6 19.0 27.5 18.7 17.6 26.8 19.5 37.0 24.6 18.0 36.1 19.2 45.7 30.8 17.8 44.6 19.0 55.8 37.9 17.7 54.5 90 kW 16.1 13.1 16.3 19.5 25.9 32.2 39.6 13.2 16.4 19.6 25.9 32.3 39.7 13.2 16.4 19.6 26.0 32.4 39.8 13.2 16.4 19.7 26.0 32.4 40.0 13.2 16.5 19.7 26.1 32.5 40.1 EER 13.5 14.3 14.2 14.1 14.4 14.3 14.3 14.9 14.8 14.7 14.9 14.8 14.8 15.4 15.3 15.2 15.5 15.4 15.3 16.0 15.9 15.8 16.1 15.9 15.8 16.6 16.4 16.3 16.6 16.5 16.3 Tons 17.7 15.3 18.9 22.5 30.2 37.4 46.0 15.9 19.6 23.4 31.4 38.9 47.7 16.5 20.4 24.3 32.7 40.4 49.5 17.2 21.2 25.2 34.0 42.0 51.4 17.8 22.0 26.2 35.3 43.6 53.3 95 kW 17.1 13.9 17.3 20.7 27.4 34.1 41.9 13.9 17.3 20.7 27.5 34.2 42.0 14.0 17.4 20.8 27.5 34.3 42.1 14.0 17.4 20.8 27.6 34.3 42.2 14.0 17.4 20.9 27.6 34.4 42.3 EER 12.4 13.1 13.1 13.0 13.2 13.1 13.2 13.7 13.6 13.5 13.7 13.6 13.7 14.2 14.1 14.0 14.2 14.2 14.1 14.7 14.6 14.5 14.8 14.7 14.6 15.3 15.1 15.1 15.3 15.2 15.1 Notes: 1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.00010 in the evaporator and 0.00025 in the condenser. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kW input is for compressors only. 4. EER = Energy Efficiency Ratio (Btu/watt-hour). Power inputs include compressors and control power. 5. Ratings are based on an evaporator temperature drop of 10°F. 6. Interpolation between points is permissible. Extrapolation is not permitted. CG-PRC011-EN 17 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 4.4 64.7 5.2 57.0 12.6 4.5 54.5 5.2 70.5 15.7 4.5 67.5 5.1 83.9 18.7 4.5 80.3 5.2 112.9 24.8 4.6 108.0 5.2 139.7 30.9 4.5 133.7 5.2 171.7 38.0 4.5 164.0 5.6 61.2 12.6 4.9 58.5 5.5 75.6 15.7 4.8 72.3 5.5 89.9 18.8 4.8 86.1 5.6 121.0 24.8 4.9 115.8 5.5 149.5 31.0 4.8 143.2 5.5 183.3 38.2 4.8 175.6 6.0 65.4 12.6 5.2 62.7 5.9 80.8 15.8 5.1 77.4 5.8 96.2 18.9 5.1 92.2 6.0 129.5 24.9 5.2 124.2 5.9 160.1 31.1 5.1 153.4 5.8 195.3 38.4 5.1 187.2 35 kWi 17.1 14.0 17.3 20.7 27.5 34.2 41.9 14.0 17.4 20.8 27.8 34.3 42.2 14.0 17.5 20.9 27.7 34.5 42.4 COP 3.8 3.9 3.9 3.9 3.9 3.9 3.9 4.2 4.2 4.1 4.2 4.2 4.2 4.5 4.4 4.4 4.5 4.4 4.4 Notes: 1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.0000176 in the evaporator and 0.000044 in the condenser. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kWi input is for compressors only. 4. COP = Coefficient of Performance (kWo/total kW). Total kW include compressors and control power. 5. Ratings are based on an evaporator and condenser temperature drop of 5.6°C. 6. Interpolation between points is permissible. Extrapolation is not permitted. 18 CG-PRC011-EN 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 20.2 25% 5.0 2.7 20.7 6.1 3.4 20.9 7.3 4.0 20.8 9.8 5.2 21.6 12.2 6.7 21.7 14.8 7.8 22.3 IPLV 20.3 20.5 20.3 20.7 19.6 19.8 Notes: 1. IPLV values are rated in accordance with ARI Standard 550/590-98. 2. EER and IPLV values include compressor and control kW. 3. kW input is for compressors only. Table PD-6 – Part-Load Performance for CGWE 20-60 Ton – 50 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% 16.7 12.4 16.1 20.6 15.5 16.0 24.5 18.5 15.9 33.0 24.5 16.2 40.8 30.6 16.0 50.1 37.6 16.0 75% 12.5 7.8 19.2 15.5 9.7 19.2 18.4 11.7 18.9 24.8 15.3 19.5 30.6 19.0 19.3 37.6 23.3 19.4 50% 8.3 4.4 22.6 10.3 5.5 22.5 12.3 6.6 22.4 16.5 8.6 23.0 20.4 11.7 20.9 25.1 14.4 20.9 25% 4.2 2.3 21.9 5.2 2.9 21.5 6.1 3.5 20.9 8.3 4.5 22.1 10.2 5.6 21.9 12.5 6.6 22.7 IPLV 21.0 20.9 20.7 21.3 20.3 20.4 Notes: 1. IPLV values are rated in accordance with ARI Standard 550/590-98. 2. EER and IPLV values include compressor and control kW. 3. kW input is for compressors only. CG-PRC011-EN 19 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 CAUC-C25 CAUC-C25 CAUC-C30 CAUC-C30 CAUC-C40 CAUC-C40 CAUC-C50 CAUC-C50 CAUC-C60 CAUC-C60 CAUC-C80 Tons 19.4 19.7 24.1 24.5 28.8 29.2 38.7 39.1 47.6 48.4 56.9 57.5 20.0 20.4 24.9 25.3 29.7 30.2 39.9 40.3 49.1 50.0 58.7 59.3 20.7 21.0 25.7 26.2 30.7 31.2 41.1 41.6 50.6 51.6 60.5 61.2 85 kW 19.5 18.6 24.9 23.4 29.1 27.0 38.8 37.4 50.2 47.0 58.4 53.6 19.7 18.8 25.1 23.7 29.4 27.2 39.2 37.8 50.6 47.4 58.5 54.0 19.9 18.9 25.4 23.9 29.7 27.4 38.6 38.0 51.2 47.8 59.4 54.4 EER 11.8 12.6 11.5 12.5 11.8 12.9 11.9 12.5 11.3 12.3 11.6 12.8 12.1 12.9 11.8 12.7 12.1 13.2 12.1 12.7 11.6 12.6 12.0 13.1 12.4 13.2 12.1 13.1 12.3 13.6 12.7 13.1 11.8 12.9 12.2 13.4 Tons 18.4 18.7 22.8 23.3 27.3 27.8 36.7 37.1 45.1 46.0 54.0 54.7 19.0 19.3 23.6 24.1 28.2 28.8 37.8 38.3 46.6 47.5 55.7 56.5 19.6 20.0 24.3 24.9 29.1 29.7 39.0 39.5 48.0 49.1 57.5 58.3 Entering Condenser Air Temperature 95 105 kW EER Tons kW 21.6 10.1 17.3 23.9 20.6 10.8 17.6 23.0 27.6 9.9 21.5 30.6 26.0 10.7 22.0 28.9 32.2 10.1 25.7 35.7 29.9 11.1 26.3 33.2 43.0 10.2 34.5 47.8 41.6 10.6 35.0 46.2 55.6 9.7 42.5 61.8 52.2 10.5 43.5 58.2 64.8 10.0 50.9 71.8 59.6 11.0 51.8 66.4 21.8 10.4 17.8 24.2 20.8 11.0 18.2 23.2 27.9 10.1 22.2 30.9 26.3 10.9 22.7 29.2 32.6 10.3 26.6 36.1 30.2 11.4 27.2 33.5 43.4 10.4 35.6 48.2 42.0 10.9 36.1 46.6 56.2 9.9 43.9 62.2 52.6 10.8 44.9 58.6 65.4 10.2 52.6 72.6 60.0 11.3 53.5 66.8 22.0 10.6 18.4 24.4 21.0 11.3 18.8 23.4 28.2 10.3 22.9 31.2 26.5 11.2 23.5 29.5 32.9 10.6 27.5 36.4 30.4 11.7 28.2 33.8 43.8 10.6 36.8 48.8 42.2 11.2 37.3 47.0 56.6 10.1 45.3 62.8 53.2 11.0 46.4 59.0 66.0 10.4 54.3 73.2 60.6 11.5 55.2 67.4 EER 8.6 9.1 8.4 9.1 8.6 9.5 8.6 9.0 8.2 8.9 8.5 9.3 8.8 9.3 8.6 9.3 8.8 9.7 8.8 9.2 8.4 9.2 8.7 9.6 9.0 9.6 8.8 9.5 9.0 10.0 9.0 9.5 8.6 9.4 8.9 9.8 Tons 16.1 16.5 20.0 20.6 24.1 24.7 32.2 32.7 39.7 40.8 47.6 48.6 16.6 17.1 20.7 21.3 24.9 25.6 33.3 33.8 41.0 42.2 49.2 50.3 17.2 17.6 21.4 22.0 25.7 26.5 34.4 35.0 42.3 43.6 50.9 52.0 115 kW 26.6 25.5 34.0 32.1 39.6 36.9 53.2 51.4 68.4 64.6 79.8 73.8 26.8 25.7 34.3 32.4 40.0 37.2 53.6 51.8 69.0 65.2 80.6 74.4 27.1 25.9 34.6 32.6 40.4 37.5 54.0 52.2 69.8 65.6 81.2 75.0 EER 7.2 7.7 7.0 7.7 7.3 8.0 7.2 7.6 6.9 7.6 7.1 7.9 7.4 7.9 7.2 7.9 7.4 8.2 7.4 7.8 7.1 7.7 7.3 8.1 7.6 8.1 7.4 8.1 7.6 8.4 7.6 8.0 7.2 7.9 7.5 8.3 Notes: 1. Ratings based on sea level altitude and evaporator fouling factor of 0.00010. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kW input is for compressors only. 4. EER = Energy Efficiency Ratio (Btu/watt-hour). Power inputs include compressors and control power. 5. Ratings are based on an evaporator temperature drop of 10°F. 6. Interpolation between points is permissible. Extrapolation is not permitted. 7. Rated in accordance with ARI Standard 550/590-98. 20 CG-PRC011-EN 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 42.8 52.2 53.2 62.4 63.1 21.9 22.3 27.3 27.9 32.6 33.2 43.6 44.1 53.7 54.8 64.3 65.1 85 kW 20.1 19.1 25.7 24.1 30.0 27.7 40.0 38.4 51.6 48.2 60.2 54.8 20.3 19.3 25.9 24.3 30.3 27.9 40.4 38.8 52.2 48.6 60.8 55.4 EER 12.6 13.5 12.3 13.4 12.6 13.9 12.6 13.3 12.1 13.2 12.4 13.8 12.8 13.8 12.6 13.7 12.8 14.2 12.9 13.6 12.3 13.5 12.6 14.0 Tons 20.2 20.6 25.1 25.7 30.1 30.7 40.2 40.7 49.5 50.6 59.3 60.2 20.8 21.2 25.9 26.5 31.0 31.7 41.4 42.0 51.0 52.2 61.1 62.1 Entering Condenser Air Temperature 95 105 kW EER Tons kW 22.2 10.8 19.0 24.6 21.2 11.6 19.4 23.6 28.4 10.5 23.7 31.5 26.7 11.5 24.3 29.6 33.2 10.8 28.4 36.8 30.7 11.9 29.1 34.1 44.4 10.8 37.9 49.2 42.6 11.4 38.5 47.4 57.2 10.3 46.7 63.4 53.6 11.3 47.9 59.6 66.6 10.6 56.0 74.0 61.8 11.8 57.0 67.8 22.5 11.0 19.6 24.9 21.4 11.8 20.1 23.8 28.7 10.8 24.4 31.8 26.9 11.8 25.1 29.9 33.6 11.0 29.3 37.2 30.9 12.2 30.0 34.3 44.8 11.0 39.1 49.6 43.0 11.7 39.7 47.8 57.8 10.5 48.1 64.0 54.0 11.5 49.4 60.0 67.4 10.8 57.8 74.6 61.4 12.1 58.8 68.4 EER 9.2 9.8 9.0 9.8 9.2 10.2 9.2 9.7 8.8 9.6 9.1 10.1 9.4 10.1 9.2 10.0 9.4 10.4 9.4 9.9 9.0 9.8 9.3 10.3 Tons 17.7 18.2 22.1 22.8 26.6 27.4 35.5 36.1 43.7 45.0 52.5 53.7 18.3 18.8 22.9 23.5 27.5 28.3 36.6 37.2 45.1 46.4 54.2 55.4 115 kW 27.3 26.2 34.9 32.9 40.7 37.8 54.6 52.6 70.2 66.2 82.0 75.4 27.6 26.4 35.2 33.1 41.1 38.1 55.0 53.0 71.0 66.6 82.8 76.0 EER 7.7 8.3 7.6 8.3 7.8 8.7 7.8 8.2 7.4 8.1 7.7 8.5 7.9 8.5 7.8 8.5 8.0 8.9 8.0 8.4 7.6 8.3 7.8 8.7 Notes: 1. Ratings based on sea level altitude and evaporator fouling factor of 0.00010. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kW input is for compressors only. 4. EER = Energy Efficiency Ratio (Btu/watt-hour). Power inputs include compressors and control power. 5. Ratings are based on an evaporator temperature drop of 10°F. 6. Interpolation between points is permissible. Extrapolation is not permitted. 7. Rated in accordance with ARI Standard 550/590-98. CG-PRC011-EN 21 Performance Data Full Load Performance Table PD-9 – 60 Hz. CCAD Performance Data in Metric Units Evaporator Leaving Water Temperature (°F) 6 8 10 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 CAUC-C25 CAUC-C25 CAUC-C30 CAUC-C30 CAUC-C40 CAUC-C40 CAUC-C50 CAUC-C50 CAUC-C60 CAUC-C60 CAUC-C80 kWo 69.4 70.7 86.2 87.8 103.0 104.7 138.4 140.0 170.2 173.5 203.5 206.0 73.5 74.8 91.3 93.3 109.1 111.1 146.1 148.0 179.9 183.7 215.1 217.9 77.4 78.9 96.4 98.7 115.2 117.5 154.0 156.0 189.7 193.9 227.2 230.4 30 kWi 19.8 18.9 25.3 23.8 29.6 27.4 39.5 38.1 51.0 47.8 59.2 54.5 20.2 19.2 25.8 24.3 30.2 27.8 39.5 38.6 52.0 48.5 60.4 55.3 20.6 19.6 26.2 24.6 30.7 28.3 40.9 39.3 52.9 49.3 61.6 56.1 COP 3.5 3.7 3.4 3.7 3.5 3.8 3.5 3.7 3.3 3.6 3.4 3.8 3.6 3.9 3.5 3.8 3.6 4.0 3.7 3.8 3.4 3.8 3.5 3.9 3.7 4.0 3.7 4.0 3.7 4.1 3.7 3.9 3.6 3.9 3.7 4.1 kWo 66.2 67.3 82.1 84.0 98.2 100.3 131.9 133.6 162.3 165.7 194.1 197.0 70.0 71.5 86.8 89.1 104.0 106.3 139.3 141.3 171.5 175.6 205.4 208.6 73.8 75.4 92.0 94.2 110.1 112.7 147.0 149.3 181.1 185.6 216.9 220.8 Entering Condenser Air Temperature (°C) 35 40 kWi COP kWo kWi 21.7 3.0 62.5 23.8 20.7 3.2 63.8 22.9 27.8 2.9 77.8 30.5 26.2 3.2 79.7 28.8 32.4 3.0 93.1 35.6 30.1 3.3 95.3 33.1 43.3 3.0 124.8 47.6 41.9 3.2 126.8 46.0 56.0 2.9 153.8 61.5 52.5 3.1 157.6 57.9 65.2 3.0 184.2 71.6 59.9 3.3 187.6 66.1 22.1 3.1 66.2 24.3 21.1 3.4 67.7 23.3 28.3 3.1 82.4 31.0 26.6 3.3 84.6 29.3 33.0 3.1 98.9 36.2 30.5 3.5 101.4 33.6 44.0 3.1 132.2 48.5 42.4 3.3 134.3 46.7 56.9 3.0 162.8 62.5 53.4 3.3 167.0 58.7 66.3 3.1 195.1 72.8 61.0 3.4 198.6 67.0 22.6 3.3 70.0 24.7 21.5 3.5 71.9 23.6 28.8 3.2 87.2 31.6 27.0 3.5 89.7 29.7 33.7 3.3 104.6 36.9 31.0 3.6 107.3 34.0 44.9 3.3 139.6 49.2 43.1 3.4 142.0 47.4 57.9 3.1 171.8 63.5 54.1 3.4 176.6 59.6 67.6 3.2 206.4 74.1 61.6 3.6 210.2 67.9 COP 2.6 2.8 2.5 2.8 2.6 2.9 2.6 2.7 2.5 2.7 2.6 2.8 2.7 2.9 2.6 2.9 2.7 3.0 2.7 2.9 2.6 2.8 2.7 3.0 2.8 3.0 2.7 3.0 2.8 3.1 2.8 3.0 2.7 3.0 2.8 3.1 kWo 58.7 60.3 73.1 75.2 87.9 90.2 117.5 119.5 144.8 149.0 173.6 177.5 62.3 63.9 77.6 79.9 93.2 96.1 124.6 126.9 153.3 158.0 184.3 188.4 65.9 67.8 82.4 84.7 98.9 101.8 131.7 134.0 162.3 167.1 195.0 199.4 45 kWi 26.2 25.1 33.5 31.7 39.1 36.4 52.4 50.7 67.5 63.7 78.7 72.7 26.7 25.5 34.1 32.1 39.8 36.9 53.2 51.4 68.7 64.6 80.0 73.8 27.1 25.9 34.6 32.5 40.4 37.4 54.1 52.1 69.8 65.4 81.4 74.7 COP 2.2 2.4 2.2 2.4 2.2 2.5 2.2 2.3 2.1 2.3 2.2 2.4 2.3 2.5 2.3 2.5 2.3 2.6 2.3 2.5 2.2 2.4 2.3 2.5 2.4 2.6 2.4 2.6 2.4 2.7 2.4 2.6 2.3 2.5 2.4 2.7 Notes: 1. Ratings based on sea level altitude and evaporator fouling factor of 0.0000176. 2. Consult Trane representative for performance at temperatures outside of the ranges shown. 3. kWi input is for compressors only. 4. COP = Coefficient of Performance (kWo/total kW). Total kW include compressors and control power. 5. Ratings are based on an evaporator temperature drop of 5.6°C. 6. Interpolation between points is permissible. Extrapolation is not permitted. 7. Rated in accordance with ARI Standard 550/590-98. 22 CG-PRC011-EN Performance Data Pressure Drops Chart PD-1 – CGWE Evaporator Chart PD-2 – CGWE Condenser CG-PRC011-EN 23 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 80 145 175 73 80 60 70 55 60 77 90 185 225 95 125 80 100 67 80 97 110 221 250 115 125 98 110 77 90 115 125 Recommended Dual Element Fuse Size 90 45 35 35 45 125 60 50 40 60 150 70 60 45 70 175 80 70 60 90 200 110 90 80 110 250 125 110 90 125 Quantity 2-10 1-10 1-15 2-15 4-10 2-10 2-15 4-15 Compressor RLA Each 34 17 14 13 18 52/34 27/17 23/14 18/13 27/18 52 27 23 18 27 34 17 14 13 18 52/34 27/17 23/14 18/13 27/18 52 27 23 18 27 Controls LRA Each 251 142 117 94 110 376/251 215/142 178/117 143/94 174/110 376 215 178 143 174 251 142 117 94 110 376/251 215/142 178/117 143/94 174/110 376 215 178 143 174 kW 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 Notes: 1. Minimum circuit ampacityis 125% of the largest compressor RLA, plus 100% of the remaining compressor(s) RLA, per NEC 440-32 and NEC 440-33. 2. Maximum fuse size is 225% of the largest compressor RLA, plus 100% of the remaining compressor(s) RLA, per NEC 440-33. 3. Recommended dual element fuse size is 150% of the largest compressor RLA, plus 100% of remaining compressor(s) RLA, per NEC 440-33. 4. Use copper conductors only. 5. Voltage Utilization Range: Rated Voltage Utilization Range 200-230/60 180-253 380/60 342-418 460/60 414-506 575/60 517-633 400/50 360-440 6. Local codes may take precedence. 7. If unit is ordered with the High Condenser Entering Water Temperature Range (90-130), use CCAD electrical information. 24 CG-PRC011-EN 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 73 80 60 70 209 250 110 125 93 110 76 90 247 300 132 150 111 125 90 110 Recommended Dual Element Fuse Size 100 50 45 35 150 70 60 50 150 80 70 60 200 90 80 70 225 125 100 90 300 140 125 100 Quantity 2-10 1-10 1-15 2-15 4-10 2-10 2-15 4-15 Compressor RLA Each 39 20 17 14 58/39 31/20 26/17 21/14 58 31 26 21 39 20 17 14 58/39 31/20 26/17 21/14 58 31 26 21 Controls LRA Each 251 142 117 94 376/251 215/142 178/117 143/94 376 215 178 143 251 142 117 94 376/251 215/142 178/117 143/94 376 215 178 143 kW 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.16 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 0.24 Notes: 1. Minimum circuit ampacityis 125% of the largest compressor RLA, plus 100% of the remaining compressor(s) RLA, per NEC 440-32 and NEC 440-33. 2. Maximum fuse size is 225% of the largest compressor RLA, plus 100% of the remaining compressor(s) RLA, per NEC 440-33. 3. Recommended dual element fuse size is 150% of the largest compressor RLA, plus 100% of remaining compressor(s) RLA, per NEC 440-33. 4. Use copper conductors only. 5. Voltage Utilization Range: Rated Voltage Utilization Range 200-230/60 180-253 380/60 342-418 460/60 414-506 575/60 517-633 400/50 360-440 6. Local codes may take precedence. 7. If unit is ordered with the High Condenser Entering Water Temperature Range (90-130), use CCAD electrical information. CG-PRC011-EN 25 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. THE FOLLOWING CAPABILITIES ARE OPTIONAL - THEY ARE IMPLEMENTED AND WIRED AS REQUIRED FOR A SPECIFIC SYSTEM APPLICATION. A ICE-MACHINE CONTROL B COMMUNICATIONS INTERFACE G REMOTE RUNNING INDICATION AND ALARM CONTACTS H UNIT DISCONNECT, NON-FUSED J CHILLED WATER RESET - RETURN WATER 5. NOT USED ON 20-30 TON UNITS. 6. AUXILIARY CONTROLS FOR A CUSTOMER SPECIFIED OR INSTALLED LATCHING TRIPOUT. THE CHILLER WILL RUN NORMALLY WHEN THE CONTACT IS CLOSED AND TRIP THE CHILLER OFF ON MANUALLY RESETTABLE DIAGNOSTIC WHEN THE CONTACT OPENS. MANUAL RESET IS ACCOMPLISHED AT THE CHILLER SWITCH ON THE FRONT OF THE UNIT CONTROL MODULE (UCM). 7. AUXILIARY CONTROLS FOR A CUSTOMER SPECIFIED OR INSTALLED REMOTE AUTO/STOP FUNCTION. THE CHILLER WILL RUN NORMALLY WHEN THE CONTACT IS CLOSED AND STOP THE CHILLER WHEN THE CONTACT IS OPEN. RE-CLOSURE OF THE CONTACT WILL PERMIT THE CHILLER TO AUTOMATICALLY RETURN TO NORMAL OPERATION. 8. AUXILIARY CONTROLS FOR A CUSTOMER SPECIFIED OR INSTALLED DEMAND LIMIT FUNCTION. THE CHILLER WILL RUN NORMALLY WHEN THE CONTACT IS CLOSED AND LIMIT CHILLER OPERATION TO ONE COMPRESSOR PER CIRCUIT WHEN THE CONTACT OPENS. . RE-CLOSURE OF THE CONTACT WILL PERMIT THE CHILLER TO AUTOMATICALLY RETURN TO NORMAL OPERATION. K CHILLED WATER RESET - OUTDOOR AIR TEMP. SENSOR OPTIONAL ON CGWE AND STANDARD ON CCAD. L CHILLED WATER RESET - ZONE AIR O LOW AMBIENT THERMOSTAT P HIGH AMBIENT LOAD LIMIT THERMOSTAT Q ENTERING AND LEAVING CONDENSER WATER TEMP. SENSOR. MATCHED PAIR OF THERMISTORS. SENSOR KIT SHIPPED WITH UNIT AND FACTORY INSTALLED. 26 CG-PRC011-EN 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. 11 COPPER WIRE ONLY - SIZED PER N.E.C. - BASED ON NAMEPLATE RLA. SEE CUSTOMER WIRE SELECTION TABLE. 17 3 WIRES ON 20-30 TON UNITS. 6 WIRES ON 40-60 TON UNITS. 115 VAC CIRCUIT. SEPARATE 115 VAC POWER SUPPLY REQUIRED. LOAD NOT TO EXCEED 115 VA SEALED, 1150 VA INRUSH. 12 2 WIRES, 115 VAC CIRCUIT. MINIMUM CONTACT RATING AT 115 VAC - 6.9 VA INRUSH. 1.3 VA SEALED. 18 2 WIRES. 115 VAC CIRCUIT. SEPARATE 115 VAC POWER SUPPLY IS REQUIRED. LOAD NOT TO EXCEED 1150 VA INRUSH, 115 VA SEALED. 13 CCAD UNITS WITH AIR COOLED CONDENSER ONLY. 2 WIRES, 30 VOLT OR LESS CIRCUIT. DO NOT RUN IN CONDUIT WITH HIGHER VOLTAGE CIRCUITS. SEE CUSTOMER WIRE SELECTION TABLE. 19 2 WIRES. 30 VOLT OR LESS CIRCUIT. DO NOT RUN IN CONDUIT WITH HIGHER VOLTAGE CIRCUITS. SEE CUSTOMER WIRE SELECTION TABLE. 20 SHIELDED TWISTED PAIR, 30 V OR LESS CIRCUIT. MAXIMUM LENGTH 5000 FT. DO NOT RUN IN CONDUIT WITH HIGHER VOLTAGE WIRE. SEE CUSTOMER WIRE SELECTION TABLE. 22 CUSTOMER SUPPLIED CONTACTS MUST BE COMPATIBLE WITH DRY CIRCUIT 12 VDC, 45 mA RESISTIVE LOAD. SILVER OR GOLD PLATED CONTACTS ARE RECOMMENDED. 23 SENSOR LEADS TO REACH CONTROL PANEL. 30 VOLT OR LESS CIRCUIT. DO NOT RUN IN CONDUIT WITH HIGHER VOLTAGE CIRCUITS. CG-PRC011-EN 27 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. The leaving chilled water temperature control algorithm maintains accurate temperature control, minimizes the drift from set point and provides better building comfort. The microcomputer control incorporates improved chiller start-up, load limiting, compressor anti-recycle timing and lead/ lag functions into standard chiller operation. Simple Interface with Other Control Systems Microcomputer controls afford simple interface with other control systems, such as time clocks, building automation systems and ice storage systems. Wiring to the unit can be as simple as two wires! You can have the flexibility to meet job requirements without learning a complicated control system. Safety Controls A centralized microcomputer offers a higher level of machine protection. Since the safety controls are smarter, compressor operation can be limited to avoid compressor or evaporator failures, minimizing nuisance shutdown. For instance, if the head pressure on a unit is approaching the trip point, the controller will turn off a compressor and display an alarm to indicate a head pressure problem. This keeps cooling capacity available until the problem can be solved. Whenever possible, the chiller is allowed to perform its function: make chilled water. In addition, microcomputer controls allow for more types of protection as standard, such as over and under voltage! Overall, the safety controls help keep the building running and out of trouble. Monitoring and Diagnostics The microcomputer provides all control functions and can easily indicate such parameters as leaving chilled water temperature and capacity stage. If a failure does occur, one of over 40 individual diagnostic codes will be used to indicate the problem, giving more specific information about the failure. The repair of the unit can occur in a shorter period of time. All of the monitoring and diagnostic information is displayed directly on a microcomputer display. Interface with the Trane Integrated Comfort™ System (ICS) When the scroll chiller is used in conjunction with a Trane Tracer™ system, the unit can be monitored and controlled from a remote location. The scroll chiller can be controlled to fit into the overall building control strategy by using auto/ stop, compressor inhibit and chilled water reset functions. All of the monitoring information indicated on the microcomputer can be read off the Tracer system display. In addition, all the powerful diagnostic information can be read back at the Tracer system. Best of all, this powerful capability comes over a single twisted pair of wires! 28 CG-PRC011-EN 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). CG-PRC011-EN 29 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). 30 CG-PRC011-EN Dimensional Data CG-PRC011-EN CGWE 60 Ton 31 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. 32 E 1’-3 1/2” 1’-3 1/2” 1’-5 3/8” F 3’-3” 3’-10” 3’-10” E 394 394 441 F 1041 1041 1168 CG-PRC011-EN 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. CG-PRC011-EN D 2 1/2” 3” 3” E 3’-5” 3’-10” 3’-10” F 1’-4 1/4” 1’-6 1/8” 1’-6 1/8” D 64 76 76 E 1041 1168 1168 F 413 480 460 33 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.) (kg) 20 1004 456 1430 649 25 1079 490 1605 729 CG-PRC011-EN 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. Chilled Water Reset: Front panel settable control, microprocessor based control strategy, and field-installed sensor for temperature based (ambient or zone) reset are included in this option. Return water reset sensor is standard, but panel controller and control strategy must be ordered as an option. Communications Interface: Bi-directional (Trane ICS) and generic BAS (external chilled water setpoint) communication interfaces are available for external control applications. Remote Display Panel: The remote panel has the same digital display that is on the unit control panel as well as an auto/stop switch. Another auto/stop switch can be wired from pump contactor or time clock (scheduling). Remote display is mutually exclusive with Trane ICS and generic BAS. Remote Running Indication and Alarm Contacts: Two separate single pole/ double throw contacts are provided to indicate when the compressors are running and if a unit failure has occurred. A failure will be indicated if the unit has a manual reset fault. A failure is not indicated on an automatic reset fault. CG-PRC011-EN Ice Making Controls: In ice-making mode, the unit will operate fully loaded in response to jobsite supplied contact closure. Ice making will terminate when the return fluid temperature falls below an adjustable setpoint (minimum 20°F [-6.7°C]). When not in ice making mode, unit will provide modulating capacity control based on leaving chilled fluid temperature (20-55°F) [-6.7°C to 12.8°C]. Cycle Counter and Hour Meter: One cycle counter and hour meter per compressor. Unit Mounted Disconnect Switch: Nonfused molded case disconnect switch factory installed in control panel for disconnecting main three-phase power. Isolators: Neoprene-in-shear isolators for field installation under unit frame. Gauges: Factory-installed gauges monitor suction and discharge pressure. One set of gauges per refrigeration circuit. Sound Attenuation: Factory-installed acoustical attenuation for applications where extremely low sound level is required. Water Regulating Valves: Field-installed valves provide means for control of head pressure. Low Ambient Thermostat: Field-installed outdoor thermostat with an adjustable setpoint provides means for low ambient lockout. Condenser Water Temperature Sensor: Field-installed matched pair temperature sensors provide for microprocessor display. 35 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. SEE INSET “A” FOR PROGRAMMING RESISTOR CONNECTIONS . TO PROGRAM AN EXTERNAL CHILLED WATER SETPOINT WHEN A 4-20 mA/0-10 VDC SIGNAL IS NOT USED. SEE THE OPERATORS MANUAL FOR PROGRAMMING RESISTOR CONNECTIONS FOR USE ON NORMAL COOLING OR ICE MAKING APPLICATIONS. 7. SEE INSET “C” FOR CONTACTS (IN PLACE OF ZONE TEMP. SENSOR) FOR OPTIONAL ICE MACHINE CONTROL. 8. THE FOLLOWING CAPABILITIES ARE OPTIONAL - THEY ARE IMPLEMENTED AND WIRED AS REQUIRED FOR A SPECIFIC SYSTEM APPLICATION. A ICE-MACHINE CONTROL (CANNOT BE USED WITH OPT. L) B COMMUNICATIONS INTERFACE G REMOTE RUNNING INDICATION AND ALARM CONTACTS H UNIT DISCONNECT, NON-FUSED J CHILLED WATER RESET - RETURN WATER K CHILLED WATER RESET - OUTDOOR AIR TEMP. SENSOR OPTIONAL ON CGWE AND STANDARD ON CCAD. L CHILLED WATER RESET - ZONE AIR (CANNOT BE USED WITH OPT. A) O LOW AMBIENT THERMOSTAT P HIGH AMBIENT LOAD LIMIT THERMOSTAT Q ENTERING AND LEAVING CONDENSER WATER TEMP. SENSOR. MATCHED PAIR OF THERMISTOR FOR 4RT1 AND 4RT2. WIRING AND CONTACT REQUIREMENTS: 21. 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. 24. CUSTOMER SUPPLIED CONTACTS MUST BE COMPATIBLE WITH DRY CIRCUIT 12 VDC, 45 mA RESISTIVE LOAD. SILVER OR GOLD PLATED CONTACTS ARE RECOMMENDED. 25. 30 VOLT OR LESS CIRCUIT. DO NOT RUN IN CONDUIT WITH HIGHER VOLTAGE CIRCUITS. USE #1418 AWG. SEE SELECTION TABLE. 26. MINIMUM CONTACT RATING AT 115 VAC: 6.9 VA INRUSH, 6.9 V A SEALED. 28. WHEN CUSTOMER INPUT IS REQUIRED, REMOVE JUMPER AND INSTALL CUSTOMER WIRING. 29. LOSS OF CHILLED WATER FLOW PROTECTION IS PROVIDED BY THE UNIT WITHOUT THE NEED FOR A CHILLED WATER FLOW SWITCH. THE USE OF A CHILLED WATER FLOW SWITCH IS AT THE CUSTOMER’S DISCRETION. 30. FAN STAGING IS CONTROLLED BY THE COMPRESSOR CHILLER. TO INSURE PROPER FAN OPERATION ADD JUMPER TERMINALS ON 1TB3 AS SHOWN. REMOVE JUMPER FROM 1TB2-4 TO 1TB2-3 ON ALL CAUC UNITS. REMOVE JUMPER FROM 1TB2-9 TO 1TB2-8 ON ALL 40, 50 AND 60 TON CAUC UNITS. IF LOW AMBIENT OPTION, ADD JUMPER FROM 1TB3-6 TO 1TB3-7 AND FROM 1TB3-11 TO 1TB3-12. 36 CG-PRC011-EN Typical Wiring Diagrams CG-PRC011-EN 37 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. The microprocessor also incorporates optimal start-up logic, load limiting, compressor anti-recycle timing, automatic lead-lag function and compressor protection features. • Easy operation provided by menudriven digital display. Display provides temperatures, pressures, setpoints and over 40 diagnostic readouts. • Compressor protection from start and run overloads, under and over voltage, phase loss and phase reversal, and rapid recycling. • Easy installation through small size, factory wiring, easy lifting provisions and start-up control logic. • Availability. Trane has the industry’s fastest ship cycles on both stock and built-to-order units. 38 • Other standard features include: — Control power transformer — Auto lead-lag (on or off) — Solid-state motor protection — Insulation — Condenser water pump interlock — Filter-dryer — Built-in loss of chilled water flow sensors — Chillers fit through standard singlewidth door • Options — Trane Integrated Comfort™ systems communication — Generic building automation systems (BAS) interface — Chilled water reset (ambient, zone, return) — Unit mounted disconnect — Ice making — Hot gas bypass — Remote display/control panel — Remote running indication and alarm contact — Gauges — Sound attenuation — Neoprene isolators — Compressor cycle counter/hour meter — Water regulating valves — Condenser water temperature sensors CG-PRC011-EN 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. Compressor-Motor Direct-drive, hermetic, 3600 rpm, 60 Hz [300 rpm, 60 Hz] fixed compression, scroll compressors (20 to 30 tons - two compressors; 40 to 60 tons - four compressors). Each compressor has: centrifugal oil pump, oil level sightglass, oil charging valve, two point lubrication for each motor bearing, flooded lubrication for the journal and thrust bearings, and a check valve on the scroll discharge port. Motor is suction gas-cooled, hermetically sealed, two-pole, squirrel cage induction type. Evaporator Shell and tube design with seamless copper tubes roller expanded into tube sheets. Designed, tested and stamped in accordance with ASME Code for refrigerant side working pressure of 300 psig. Water side working pressure is 300 psig for CGWE 20-50 and CCAD 20-60, 215 psig for CGWE 60. One water pass with a series of internal baffles. Each shell includes drain connections, entering and leaving temperature sensors, and ¾ inch Armaflex II (or equal) insulation (K= 0.26). Condenser (CGWE only) Shell and tube design with seamless internally enhanced copper tubes. Designed and tested for refrigerant side working pressure of 450 psig. Water side working pressure is 300 psig for CGWE 20-50, 150 psig for CGWE 60. Two pass construction with six-inch diameter shell (20 to 30 tons). One pass construction with two separate condensers connected in series (40 to 60 tons). Each condenser includes a subcooler circuit. Tubes are cleanable and replaceable. Refrigerant Circuit Each refrigeration circuit shall be completely independent and shall include liquid line and discharge line service valves, filter dryer, combination moisture indicator-sightglass, charging port, insulated suction line, liquid line solenoid valve and thermal expansion valve. Isolation valves provide means of isolating refrigerant charge in either the high or low pressure side while servicing. One refrigerant circuit on 20 to 30 tons; two refrigerant circuits on 40 to 60 tons. Condenserless units (CCAD) shall be equipped with discharge check valve and moisture indicator sightglass. CG-PRC011-EN Control Panel Factory-mounted microprocessor based control panel uses 120/60/1 power. Automatic shutdown protection with manual reset is provided for low evaporator outlet refrigerant temperature and pressure, high condenser refrigerant pressure, motor current overload, and phase reversal. Automatic shutdown protection with automatic reset after condition is corrected is provided for low line voltage and loss of chilled water flow. The unit control module (UCM) automatically takes action to prevent complete shutdown by shedding compressors one at a time. This occurs in the event of low evaporator refrigerant temperature, high condenser refrigerant pressure, motor current overload; preventing the motor current from exceeding setpoint. Solid-state chilled water temperature sensors are included for precise and accurate control. A menu driven display indicates the operating code, the last diagnostic code, chilled water setpoint, current limit setpoint, condenser water and chilled water temperature sensors. Factory-installed entering and leaving condenser water temperature sensors (optional) are available for microprocessor display or Trane Tracer™ monitoring. Over 40 diagnostic checks are made and will be displayed when a problem is detected. Starter The unit control panel contains both a control section and a starter section. The panel is a painted, NEMA 1 enclosure. The starter section contains: top access for power wiring, single point power hook-up, three-phase solid-state overload protection, customer wired grounding lug, and control power transformer with fused protection. 39 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.
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