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Trane CG-PRC007-EN User's Manual

1. Chart PAF 2 Ethylene Glycol Performance Factors Chart PAF 3 Propylene Glycol Performance Factors GPM ADJUSTMENT GPM ADJUSTMENT 1 147 earn aousTmenr _ CAPACITY ADJUSTMENT COMPRESSOR POWER ADJUSTMENT 1 02 COMPRESSOR POWER ADJUSTMENT LAT 1 12 aml 1 0 1 10 FELL ge 108 K Prat T o 0 98 7 7 DC N A z z F 1 06 5 X bk e N Z 1 04 di 0 96 z S T a 2 T lt N 1 02 au a S lt 0 94 1 00 CT S Ct sl bel N 0 98 SRL CELL 0 92 z 0 96 pe k N tif 0 90 0 94 10 15 20 25 30 35 40 45 50 10 15 20 25 30 35 40 45 50 ETHYLENE GLYCOL BY WEIGHT PROPYLENE GLYCOL BY WEIGHT CG PRC007 EN 19 Gi TRANE Performance Adjustment Factors Chart PAF 4 Ethylene Glycol and Propylene Glycol Performance Factors 30 ETHYLENE GLYCOL PROPYLENE GLYCOL __ _ 5 N 20 10 10 uw o um 15 w LU LU Lu Lu BE a O O o 0 Lu D Q te 20 amp S 2 q lt oc a a 10 H z s LU Lu S 25 E 20 ki 30 A ia 35
2. 10 15 20 25 30 35 40 45 50 ANTIFREEZE BY WEIGHT 20 CG PRC007 EN S TRANE Performance Data 60 HZ Table PD 1 10 Ton CGA 120 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 20 28 6 0 7 6 9 4 5 6 8 5 8 0 5 4 9 4 6 9 5 1 10 4 5 9 4 9 11 5 5 1 25 24 6 6 7 8 10 2 6 3 8 6 8 7 6 0 9 6 7 5 5 7 10 6 6 4 5 4 11 8 5 5 30 19 7 3 8 0 11 0 6 9 8 8 9 4 6 6 9 8 8 1 6 3 10 8 7 0 6 0 12 0 6 0 35 14 8 0 8 2 11 8 7 7 9 0 10 2 7 3 10 0 8 8 6 9 11 1 7 5 6 6 12 3 6 4 40 0 8 9 8 4 12 6 8 5 9 3 11 0 8 1 10 3 9 5 7 7 11 4 8 1 7 3 126 6 9 42 0 9 2 8 5 13 0 8 8 9 4 11 3 8 4 10 4 9 7 8 0 11 5 8 3 7 5 127 7A 44 0 9 5 8 6 13 3 9 1 9 5 11 6 8 7 10 5 10 0 8 3 11 6 8 6 7 8 128 7 3 45 0 9 7 8 6 13 4 9 3 9 5 11 7 8 9 10 5 10 1 8 4 11 6 8 7 7 9 129 7 4 46 0 9 8 8 7 13 6 9 4 9 6 11 8 9 0 10 6 10 3 8 6 11 7 8 8 8 1 129 7 5 48 0 10 2 8 8 13 9 9 8 9 7 12 1 9 3 10 7 10 5 8 9 11 8 9 0 8 4 13 0 7 7 50 0 10 5 8 9 14 2 10 1 9 8 12 4 9 7 10 8 10 8 9 2 11 9 9 3 8 7 13 2 7 9 55 0 11 4 9 1 15 0 11 0 10 0 13 2 10 5 11 0 11 4 10 0 12 2 9 8 9 4 135 84 60 0 12 4 9 4 15 8 11 9 10 3 13 9 11 4 11 3 12 1 10 8 12 5 10 4 10 2 13 8 89 Table PD 2 15Ton CGA 180
3. 25 CGAFC25 Capacity Tons 11 7 KW Input 9 1 EER 30 CGAFC30 Capacity Tons KW Input EER 176 40 CGAFC40 Capacity Tons 10 9 KW Input 74 EER 170 50 CGAF C50 Capacity Tons 15 9 KW Input 11 2 EER 18 3 60 CGAFC60 Capacity Tons 178 KW Input 11 7 Notes 1 Rated in accordance with ARI Standard 550 590 98 44 Degrees leaving chilled water temperature Constant Evaporator waterflow as determined at full load operation 95 F ambient and 10F evaporator temperature drop Entering ambient temperature based on 55F for loads below 33 Entering ambient temperature based on 0 60 load 35 for loads above 33 EER Energy Efficiency Ratio Btu Watt hour Power inputs include compressor condenser fans and control power 2 Single phase CGA120B1 model should be re rated at all operating points using the following factors 1 08 x KW 0 92 x EER CG PRC007 EN 27 e TRANE Performance Data 50 HZ Table PD 19 10Ton CGA 120 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 13 9 11 9 10 2 8 6 7 3 6 7 100 Capacity 8 1 7 7 7 3 6 9 6 5 6 3 System KW 13 9 15 5 17 3 19 3 21 6 22 9 EER 11 6 10 1 8 7 7 4 6 3 5 8 50 C
4. 2245mm 35 8 ai e i f 92mm Leen N T 1 5 8 nan vi 2175mm DETAIL A 3 5 3 4 wine 1060mm eg NO OBSTRUCTIONS AR FLOW OPTIONAL DAMPER W L 3 A Leesch o IT E T D EN 2 3 4 3 4 DIA X 6 MTG HOLES 11 4 la 70 32mm 5 343mm mm 19mm Ee TOP VIEW MINIMUM CLEARANCE CONTROL ZS e S k PANEL mm 5 4 t S 6 6 3 8 seme J ud Naj L 1991mm TR PD 6 1 bej J 1854mm f e ea um 38 8 DIA l ker tl LINE VOLTAGE 2 1 2 we SH 64mm DIA HOLES 4 LIFTING LOCATIONS 11 4 X 5 1 4 SLOT LEFT SIDE VIEW 32mm X 114mm 5 CONTROL CONN t 2 l 356mm KE s F 8 71 7 127mm 2629mm FRONT VIEW H 3 Grooved Pipe Connection Water Inlet 3 Grooved Pipe Connection Water Outlet 5 RV 528mm Rear View Access Hole Locations 46 CG PRC007 EN S TRANE Weights Table W 1 Approximate Corner Weights Ibs 10 Ton Unit Isolator Loading Tons Model Number 1 2 3 4 Operating Wt Shipping Wt 10 CGA 120B 161 164 103 101 529 576 Al 10 TON o SERVICE ACCESS Ka 2 Table W 2 Approximate Corner Weights Ibs 15 Ton Unit Isolator Loading Tons Model Number 1 2 3 4 Operating Wt Shipping Wt 15 CGA 180B 186 187 208 207 788 871 3 Zi 15 TON 2 1 l SERVICE HE Table W 3 CGAF Unit Weights Ibs Model Condenser Isolator Loadings Location Ibs Operating Shipping T
5. D Ein Ka 186m DETAIL A Daa F MATER OUTLET MEIH REFRIGERANT GAGE Pr a 38 71 983 ET bea EVAPORATOR COMPRESSOR PRESSURE TAPS AND EXPANSION VALVE ACCESS 1 1 2 38 1 DIA LIFTING HOLE TYP OF 4 ge DIA KNOCKOUTS TYPNOF 2 HEAD PRESSURE CONTROL ve P P Ze CG PRC007 EN Dimensional Data S TRANE Figure DD 3 CGAF C20 Unit Dimensions 2 3 4 P 70mm l 1 3 32 4X 30V MAX pa 28mm o 31 4 gt A S 83mm SIA 3 1 3 8 2242mm 3 3 wc d i 8 6 0 1 8 o s 2 1 1 3 32 1X HEAT TAPE POWER 203mm 1832mm sei 1006mm 889mm 5 7 8 28mm 2438mm em 149 e 3 4 oa x 4 MTG HOLES MINIMUM CLEARANCE mm mim Cas CONDUIT MAIN POWER 19mm TLL L 76mm ae aa Va CONNECTIONS BOTTOM 7 248mm 7 8 SEE DETAIL A i Bimm d K E 1 a i i 4 9 1 2 i i 1461mm 35 8 DOOR l i Bed aye 2 Sea N l Leen i 1527mm ma 1060mm i gn Pr CY CN DETAIL A V J ype 5 TT T NO OBSTRUCTIONS 2 3 4 LJE 8g o AIR FLOW comm TOP VIEW 52mm 2438mm Z OPTIONAL DAMPER MINIMUM CLEARANCE l i VA 1 2 dr vi 343mm CONTROL x PANEL k 6 1 8 5 2 5 2 1 2 156mm SE 1588mm 4 3 8 W PETE 5 7 7 8 111mm peno
6. EER 9 6 15 COA 180 Capacity Tons 13 6 KW Input 16 9 EER 9 8 15 2 20 CGAFC20 Capacity Tons 177 10 7 KW Input 21 6 8 5 EER 9 8 13 8 25 CGAFC25 Capacity Tons 23 1 16 3 KW Input 28 3 14 2 EER 9 8 14 2 30 CGAFC30 Capacity Tons 28 0 170 KW Input 34 3 14 4 EER 9 7 11 9 15 1 40 CGAFC40 Capacity Tons 34 5 28 4 21 4 KW Input 42 7 28 6 171 EER 9 7 11 3 13 5 50 CGAF C50 Capacity Tons 43 0 372 30 6 KW Input 53 2 39 4 272 EER 9 7 1 9 15 2 60 CGAF C60 Capacity Tons 55 4 45 7 34 6 KW Input 68 6 45 9 273 Table PD 18 Continued Part Load Data ARI Points 10 60 Tons Continued Entering Condenser Air Temperature Degrees F Model 66 2 65 3 574 55 Tons Number 52 Load 51 Load 37 Load 32 Load EER 13 5 10 CGA120 Capacity Tons 4 6 KW Input 41 EER 13 5 15 CGA180 Capacity Tons 71 KW Input 6 2 EER 20 CGAF C20 Capacity Tons KW Input EER 15 3
7. Air Cooled Liguid Chillers 10 to 60Tons April 2004 CG PRC007 EN S TRANE introduction Ai Cooled Liguid Chillers Design and manufacturing excellence produce quality products This tradition makes Trane a leader in the air cooled of using excellence to meet market chiller marketplace For over 40 years demands is illustrated with the Trane 10 Trane has been using the best to 60 ton air cooled chillers engineering available in development manufacturing and marketing to Cat hae 10 15 Tons 2003 American Standard Inc All rights reserved CG PRC007 EN CG PRC001 EN Contents Introduction Features and Benefits Application Considerations Selection Procedure Model Number Description General Data Performance Data Performance Adjustment Factors Controls Electric Power Dimension and Weights Mechanical Specifications S TRANE Features and Benefits Installation Small size complete factory wiring easy lifting provisions factory installed options and start up control provide fast easy installation A complete factory run test is performed on each unit eliminating potential start up problems Integrated Comfort Systems AllTrane chillers are ICS compatible A simple twisted wire pair is all it takes to hook an air cooled chiller into a Tracer system An ICS system provides the most advanced diagnostics monitoring and control that the industry can offer Only T
8. DIGIT 7 Major Design Change Number of Refrigerant Circuits Number of Compressors B 2 Refrigerant Circuits 2 Compressors Model Number Description S TRANE 10 15 Tons CGA 120 B 3 00 BA 123 456 7 8 9 10 11 12 DIGIT 8 Voltage 1 208 230 60 1 Available CGA120 Only 3 208 230 60 3 4 460 60 3 W 575 60 3 D 380 415 50 3 DIGIT 9 Factory Installed Options 0 No Options H Hot Gas Bypass C Black Epoxy Coil Standard Deviation K Hot Gas Bypass amp Black Epoxy Coil S Special DIGIT 10 Leaving Solution Set point 0 Standard Expansion Valve 40 60 F Leaving Water CGA100 amp CGA120 models 20 60 F Leaving Solution CGA150 amp CGA180 Models V Nonstandard Expansion Valve 20 39 F Leaving Solution CGA100 amp CGA120 models DIGIT 11 Minor Design Change A First B Second etc DIGIT 12 Service Digit DIGIT 1 2 Unit Model CG IntelliPak Air Cooled Chiller 20 60 Tons CG A E C40 4 A A A1 A A A A A 00 00 00 0 0 12 3 4 567 8 9 10 1112 13 14 15 16 17 1819 20 21 22 23 24 25 DIGIT 10 Design Seguence J Generic B A S Module A First 0 5 v Input Binary Output B Second M Remote Human Interface Etc N Generic B A S Module DIGIT 3 UnitType A Air Cooled Condensing DIGIT 4 Development Sequence A B C etc DIGIT 5 6 7 Nominal Capacity C20 20 Tons C25 25 Tons C30 30 Tons C40 40 Tons C50 50 Tons C
9. 14 1 013 0 710 1 007 0 993 0 700 1 017 0 972 0 680 1 038 0 952 0 660 1 048 16 1 020 0 640 1 010 1 000 0 630 1 020 0 980 0 620 1 040 0 960 0 600 1 050 6 0 957 1 615 0 979 0 953 1 600 0 989 0 931 1 570 0 990 0 914 1 540 1 002 8 0 964 1 215 0 982 0 959 1 210 0 992 0 937 1 180 0 994 0 920 1 170 1 006 0 001 10 0 970 0 965 0 985 0 964 0 960 0 995 0 943 0 940 0 998 0 926 0 920 1 009 12 0 976 0 785 0 989 0 966 0 790 0 998 0 945 0 770 1 007 0 926 0 760 1 018 14 0 982 0 675 0 993 0 968 0 670 1 001 0 947 0 650 1 016 0 927 0 640 1 027 16 0 989 0 620 0 996 0 970 0 600 1 004 0 949 0 590 1 025 0 927 0 580 1 036 6 0 916 1 565 0 951 0 913 1 550 0 969 0 896 1 490 0 975 0 871 1 450 0 984 8 0 923 1 245 0 958 0 919 1 170 0 972 0 898 1 110 0 979 0 874 1 080 0 987 0 002 10 0 930 0 925 0 965 0 925 0 920 0 975 0 900 0 890 0 982 0 877 0 880 0 989 12 0 934 0 810 0 969 0 927 0 750 0 978 0 908 0 730 0 986 0 885 0 720 0 993 14 0 938 0 695 0 973 0 929 0 640 0 981 0 916 0 620 0 989 0 894 0 610 0 997 16 0 948 0 580 0 976 0 931 0 580 0 983 0 924 0 580 0 993 0 902 0 570 1 001 CG PRC007 EN 17 Gi TRANE Pressure Drop Ft of Water Performance Adjustment Factors Chart PAF 1 Evaporator Water Pressure Drop 10 to 60 Ton Air Cooled Chillers Flow L S o 40 Ng U bai s E H Ze Po PA Pe dap 10 20 30 40 50 60 70 80 90 100 200 300 Flow GPM CG PRC007 EN S TRANE Performance Adjustment Factors
10. Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 40 0 11 2 12 1 11 1 10 6 13 8 9 2 10 0 15 7 7 6 9 3 17 8 6 2 8 9 19 0 5 6 42 0 11 6 12 2 11 4 11 0 13 9 9 5 10 3 15 8 7 9 9 6 17 9 6 4 9 3 19 1 5 8 44 0 12 0 12 4 117 114 14 0 9 8 10 7 15 9 8 1 10 0 18 1 6 6 9 7 19 3 6 0 45 0 12 2 12 4 11 8 11 6 14 1 9 9 10 9 16 0 8 2 10 2 18 2 6 8 9 9 194 6 1 46 0 12 5 12 5 12 0 11 8 14 1 10 1 112 16 1 8 3 10 4 18 2 6 9 10 1 194 62 48 0 12 9 12 6 12 3 12 3 14 3 10 3 11 6 16 2 8 6 10 8 18 4 7A 10 5 196 64 50 0 13 4 12 7 12 6 12 7 14 4 10 6 12 0 16 3 8 8 11 2 18 5 7 3 10 9 197 66 Table PD 12 20 Ton CGAF C20 Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW _ EER 40 0 14 7 15 2 11 7 14 0 17 0 9 9 13 2 19 0 8 3 12 3 21 3 6 9 11 9 225 6 3 42 0 15 3 15 3 12 0 14 5 17 1 10 2 13 7 19 2 8 6 12 8 21 5 7 1 12 3 227 65 44 0 15 8 15 5 12 3 15 0 17 3 10 4 14 2 19 3 8 8 13 2 21 6 7 3 12 8 229 6 7 45 0 16 1 15 5 12 4 15 3 17 3 10 6 14 4 19 4 8 9 13 5 21 7 7 4 13 0 23 0 68 46 0 16 4 15 6 12 6 15 5 17 4 10 7 14 7 19 5 9 0 13 7 21 8 7 5 13 2 23 1 6 9 48 0 16 9 15 7 12 9 16 1 17 6 11 0 15 2 19 7 9 3 14 2 22 0 7 8 13 7 23 3 7 1 50 0 17 5 15 9 13 2 16 6 17 8 11 2 15 7 19 9 9 5 14 7 22 2 8 0 14 2 235 7 3 Table PD 13 25 Ton CGAF C25 Entering Condenser Air Tempe
11. management systems and Trane HVAC equipment by a single twisted wire pair This allows bidirectional communication between the Tracer system and the unit mounted controls Connected to the chiller s UCM this simple pair allows you to control monitor and diagnose your buildings comfort system The UCM is linked to the Tracer system and they electronically talk to one another Since ICS is factory packaged there is no need to install separate sensors to monitor your chiller s operation All of the control points are on the controller and ready to go when the unit ships Simply hookup the Tracer system to the Intelli Pak chiller with the twisted wire pair This feature means lower installed cost less chance for jobsite errors less design time on the front end of your project and fewer callbacks CG PRC007 EN ICS gives you the most powerful monitoring and diagnostic system available Monitoring up to 30 individual points the ICS can detect and correct problems before a comfort level change is even noticed Advanced monitoring and diagnostics can help building owners to more effectively market their buildings to prospective tenants An ICS system is the most advanced comfort system in the industry Because Trane has more experience with ICS than all other eguipment manufacturers combined you can feel secure knowing that you are dealing with a proven track record in building management Trane is the only brand that supplie
12. the ASCT1 the RR1 contacts the LPCO1 and the HPC01 to energize the CC1 coil This starts compressor number one and the outdoor fan If compressor number one can t satisfy the cooling demand WTT s 2nd stage switch closes allowing power to pass through the CC1 auxiliary contacts the DBC the ASCT2 the RR2 contacts the LPCO2 and the HPCO2 to energize the CC2 coil which starts compressor number two 15 Ton Operation With fused disconnect switch closed power is supplied to the crankcase heaters and the 24 volt control circuit Starting the chilled water pump closes the CWPS auxiliary contacts and completes the flow switch allowing power to pass through the LTC to energize the CWFIR When the water temperature rises above theWTT s set point its first stage switch closes allowing power to pass through the CWFIR contacts the ASCT1 the RR1 contacts the LPCO1 and the HPCO1 to energize the CC1 coil This starts compressor number one and outdoor fan number one If compressor number one can t satisfy the cooling demand WTT s second stage switch closes allowing power to pass through the CWFIR contacts the DBC the ASCT2 the RR2 contacts the LPC02 and the HPCO2 to energize the CC2 coil This starts compressor number two and outdoor fan number two LOW AMBIENT OPERATION Field Installed Head Pressure Control Accessory Standard units will operate in outdoor ambient temperatures down to the values shown in t
13. 12 9 27 8 29 9 11 2 26 4 32 8 9 6 24 9 36 1 8 3 60 o 33 0 25 6 15 5 31 6 28 0 13 5 30 1 30 7 11 8 28 6 33 7 10 2 27 0 36 9 8 8 Notes 1 Data based on 0 0001 fouling factor at sea level 2 Interpolation between points is permissible Extrapolation beyond points is not permissible EER Energy Efficiency Ratio Btu watt hour Power inputs include compressors condenser fans and control power Ratings based on evaporator drop of 10 F Rated in accordance with ARI Standard 550 590 98 Minimum recommended ethylene glycol percentage used for leaving water temperatures below 40 F Use the following equation to calculate COP values at other than ARI conditions COP EER x 2928 Bo OO JO Oo 22 CG PRC007 EN S TRANE Performance Data 60 HZ Table PD 5 30 Ton CGAF C30 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 20 28 18 8 25 7 8 8 17 9 28 1 7 6 16 9 30 9 6 6 15 9 34 0 5 6 14 9 37 6 4 7 25 24 21 0 26 3 9 6 20 0 28 7 8 4 18 9 31 5 7 2 17 8 34 8 6 2 16 7 38 4 5 2 30 19 23 3 26 8 10 4 22 2 29 3 9 1 21 1 32 2 7 9 19 9 35 5 6 7 18 7 39 2 5 7 35 14 25 8 27 4 113 24 6 29 9 9 9 23 4 32 9 8 5 22 1 36 2 7 3 20 8 40 0 6 2 40 0 28 7 28 0 12 3 27 4 30 7 10 7 26 1 33 7 9 3 24 7 37 1 8 0 23 2 40 9 6 8 42 0 29
14. 22 8 33 8 8 1 22 0 35 6 7 4 50 0 27 9 24 9 13 4 26 5 27 6 11 5 25 1 30 7 9 8 23 6 34 0 8 3 22 8 35 9 7 6 Notes 1 Data based on 0 0001 fouling factor at sea level 6 Rated in accordance with ARI Standard 550 590 98 2 Interpolation between points is permissible 7 Minimum recommended ethylene glycol percentage used for leaving 3 Extrapolation beyond points is not permissible water temperatures below 40 4 EER Energy Efficiency Ratio Btu watt hour Power 8 Data obtained assuming 400 Volt Supply inputs include compressors condenser fans and control power 9 Use the following equation to calculate COP values at other 5 Ratings based on evaporator drop of 10 F CG PRC007 EN than ARI conditions COP EER x 2928 25 e TRANE Performance Data 50 HZ Table PD 15 40 Ton CGAF C40 Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 40 0 28 8 30 0 11 5 27 3 33 5 9 8 25 7 37 6 8 2 24 0 42 2 6 8 23 1 44 6 6 2 42 0 29 8 30 2 11 8 28 3 33 8 10 0 26 7 37 9 8 4 25 0 42 5 7 0 24 1 45 0 6 4 44 0 30 9 30 5 12 2 29 3 34 1 10 3 27 7 38 2 8 7 25 9 42 8 7 3 25 0 45 3 6 6 45 0 31 5 30 6 12 3 29 9 34 3 10 5 28 2 38 4 8 8 26 4 43 0 74 25 4 45 5 6 7 46 0 32 0 30 8 12 5 30 4 34 4 10 6 28 7 38 5 8 9 26 9 43 2 7 5
15. 25 9 45 7 6 8 48 0 33 1 31 1 12 8 31 5 34 7 10 9 29 7 38 9 9 2 27 8 43 5 7 7 26 9 46 1 7 0 50 0 34 3 31 3 13 1 32 6 35 0 11 2 30 8 39 2 9 4 28 8 43 9 7 9 27 8 464 7 2 Table PD 16 50Ton CGAF C50 Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 40 0 36 0 37 2 11 6 34 2 41 3 9 9 32 3 45 9 8 4 30 2 51 0 7 1 29 1 53 8 6 5 42 0 37 3 37 5 11 9 35 5 41 6 10 2 33 5 46 2 8 7 31 4 51 4 7 3 30 2 54 2 6 7 44 0 38 7 37 8 12 3 36 8 41 9 10 5 34 8 46 6 9 0 32 6 51 8 7 5 31 4 54 6 6 9 45 0 39 4 38 0 12 4 37 5 42 1 10 7 35 4 46 8 9 1 33 2 52 0 7 7 32 0 54 8 7 0 46 0 40 1 38 2 12 6 38 1 42 3 10 8 36 0 47 0 9 2 33 8 52 2 7 8 32 6 55 0 7 1 48 0 41 5 38 5 12 9 39 5 42 7 11 1 37 3 47 4 9 5 35 0 52 6 8 0 33 8 55 4 7 3 50 0 42 9 38 8 13 3 40 9 43 0 11 4 38 7 47 7 9 7 36 3 53 0 8 2 35 1 55 9 7 5 Table PD 17 60Ton CGAF C60 Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER _ Tons KW EER Tons KW EER Tons KW EER 40 0 46 6 48 3 11 6 44 1 53 7 9 9 41 5 59 8 8 3 38 8 66 6 7 0 37 3 70 3 64 42 0 48 3 48 7 11 9 45 8 54 2 10 1 43 1 60 3 8 6 40 2 67 2 7 2 38 7
16. 5 5 22 5 58 2 46 25 24 31 9 40 5 9 4 30 4 44 3 8 2 28 7 48 7 7 1 27 1 53 8 6 0 25 3 59 5 5 1 30 19 35 6 41 4 10 3 33 9 45 3 9 0 32 1 49 8 7 7 30 3 55 0 6 6 28 4 60 7 5 6 35 14 39 5 42 4 11 2 37 7 46 4 9 7 35 8 51 0 8 4 33 8 56 2 7 2 31 7 62 0 6 1 40 0 44 1 43 5 12 2 42 1 47 6 106 40 0 52 3 9 2 37 8 57 6 7 9 35 5 63 5 6 7 42 0 45 7 43 9 12 5 43 6 48 0 109 41 5 52 7 9 4 39 2 58 1 8 1 36 9 64 1 6 9 44 0 47 4 44 3 12 8 45 3 48 4 11 2 43 0 53 2 9 7 40 7 58 6 8 3 38 3 64 6 7 1 45 0 48 2 44 5 13 0 46 1 48 7 114 43 8 53 5 9 8 41 5 58 9 8 5 39 0 64 9 7 2 46 0 49 1 44 7 13 2 46 9 48 9 115 446 53 7 10 0 42 2 59 1 8 6 39 8 65 2 7 3 48 0 50 8 45 1 13 5 48 6 49 3 11 8 462 54 2 10 2 43 8 59 6 8 8 41 2 65 7 7 5 50 0 52 6 45 5 13 9 50 2 49 8 12 1 47 8 54 7 10 5 45 3 60 2 9 0 42 7 66 3 7 7 55 0 57 1 46 6 14 7 54 6 51 0 12 9 52 0 56 0 11 2 49 3 61 5 9 6 46 5 67 7 8 2 60 0 61 8 47 7 15 5 59 1 52 2 13 6 56 4 57 3 11 8 53 5 63 0 10 2 50 5 69 2 8 8 Table PD 8 60 Ton CGAF C60 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW_ EER 20 28 37 2 50 1 8 9 35 3 55 0 7 7 33 4 60 7 6 6 31 3 67 2 5 6 29 2 746 47 25 24 41 6 51 3 9 7 39 6 56 4 8 4 37 4 62 2 7 2 35 2 68 8 6 1 32 9 76 3 5 2 30 19 46 4 52 6 10 6 44 1 57 8 9 2 41 8 63 8 7 9 39 4 70 6 6 7 36 8 78 2
17. 70 9 6 6 44 0 50 0 49 2 12 2 47 5 54 7 10 4 44 7 60 9 8 8 41 8 67 8 74 40 2 715 68 45 0 50 9 49 4 12 4 48 3 55 0 10 5 45 5 61 2 8 9 42 5 68 1 7 5 41 0 71 8 6 8 46 0 51 8 49 7 12 5 49 2 55 2 10 7 46 3 61 5 9 0 43 3 68 4 7 6 41 7 72 1 6 9 48 0 53 6 50 2 12 8 50 9 55 8 10 9 48 0 62 1 9 3 44 9 69 0 7 8 43 2 728 7 1 50 0 55 4 50 7 13 1 52 6 56 3 11 2 49 6 62 7 9 5 46 4 69 7 8 0 44 8 734 7 3 Notes Data based on 0 0001 fouling factor at sea level Interpolation between points is permissible Extrapolation beyond points is not permissible EER Energy Efficiency Ratio Btu watt hour Power inputs include compressors condenser fans and control power Ratings based on evaporator drop of 10 F Rated in accordance with ARI Standard 550 590 98 Minimum recommended ethylene glycol percentage used for leaving water temperatures below 40 Data obtained assuming 400 Volt Supply Use the following equation to calculate COP values at other than ARI conditions COP EER x 2928 26 CG PRC007 EN S TRANE Performance Data 60 HZ Table PD 18 Part Load Data ARI Points 10 60 Tons Entering Condenser Air Temperature Degrees F Model 95 86 9 84 5 777 773 72 5 72 3 71 5 Tons Number 100 Load 86 Load 82 Load 71 Load 70 Load 62 Load 62 Load 61 Load EER 10 0 10 CGA120 Capacity Tons 8 7 KW Input 10 5
18. 8 12 1 11 4 11 0 System KW 111 12 0 13 2 14 5 16 0 16 8 Notes 1 Data based on 0 0001 fouling factor at sea level 2 Interpolation between points is permissible 3 Extrapolation beyond points is not permissible 4 EER Energy Efficiency Ratio Btu watt hour Power inputs include compressors condenser fans and control power 5 Ratings based on evaporator drop of 10 F 6 Rated in accordance with ARI Standard 550 590 98 7 Data obtained assuming 400 Volt supply 28 CG PRC007 EN Performance Data 50 HZ Table PD 24 40Ton CGAF C40 S TRANE Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 14 2 12 2 10 3 8 7 7 3 6 6 100 Capacity 32 4 30 9 29 3 27 7 25 9 25 0 System KW 27 4 30 5 34 1 38 2 42 8 45 3 EER 14 9 12 8 10 9 9 2 TI 7 1 75 Capacity 25 2 24 0 22 8 21 5 20 2 19 5 System KW 20 3 22 5 25 0 27 9 31 3 33 1 EER 16 3 14 2 12 2 10 4 8 8 8 1 50 Capacity 17 8 17 1 16 3 15 4 14 5 14 0 System KW 13 2 14 5 16 0 17 7 19 8 20 9 EER 14 3 12 2 10 3 8 6 7 2 6 5 25 Capacity 8 4 8 0 7 6 7 1 6 7 6 4 System KW 7 1 7 9 8 9 9 9 11 1 11 8 Table PD 25 50Ton CGAF C50 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 14 2 12 3 10 5 9 0 7 5 6 9 100 Capacity 40 4 38 7 36 8 34 8 32 6 31 4 System KW 34 3 37 8 41 9 46 6 51 8 54 6 EER 14 7 12 8 11 0 9 4 7 9 7 3 80 Capacity 33 4 31 9 30 4 28 7 26 9 26 0 Syst
19. One binary output can be assigned to 1 Active Unit Diagnostics 2 Compressors Running Status 3 Max Capacity Hot Gas Bypass HGBP The HGBP control allows unit operation below the minimum step of unloading Hot gas bypass is initiated when the last capacity step is running and the capacity control algorithm generates a subtract command HGBP remains energized until the load increases the chiller freeze protection function is activated a user defined run time has expired the low pressure control is open or the unit goes into ice building mode Alarm and Max Capacity Relay These features are user selectable and are mutually exclusive of each other If the alarm relay output is selected it will provide a way to trigger a field supplied alarm whenever the UCM detects a fault requiring manual reset The customer can assign which fault modes will trigger the alarm relay The alarm will de energize when the manual reset is cleared When Max Capacity Output is selected it will trigger a field installed device indicating the unit has reached its maximum cooling stage this gives the customer the ability to turn on auxiliary systems to manage comfort Ice Building Control A contact closure on the UCM allows either a field installed device or an ICS system to initiate the unit to operate in the ice building mode In this mode normal chiller temperature control is bypassed and the unit runs fully loaded until ice building
20. This feature can be enabled or disabled through the Human Interface When it is enabled pump down will be initiated prior to shutting down the last capacity stage on each circuit by de energizing a liguid line solenoid valve Pump down is terminated by the opening of the low pressure switch or 30 seconds after the cycle is initiated On units eguipped with hot gas bypass pump down will be initiated upon termination of the hot gas bypass cycle Chiller Solution Pump Control The UCM has two operating modes for the chiller solution pump control Auto and On The UCM additionally has a relay output that will energize de energize the chiller s solution pump control circuit The relay is de energized stopping the pump when emergency stop is activated The solution pump relay is energized to run the pump in the following modes freeze protection normal cooling control low ambient freeze protection ice building and loop stabilization and service mode Modes that will reguest the pump to stop are ice building complete ice building delay unit stop and external auto stop Low Ambient Start Control Two functions are integrated into the control to allow operation in extreme conditions and still protect the overall system Low ambient start control will allow compressor operation below 65 F In order to avoid nuisance tripping the low CG PRC007 EN Controls S TRANE pressure control will be bypassed for a period o
21. electronic damper assemblies for head pressure control Decorative grilles provide protection from exterior damage to coil surface and CG PRC007 EN Mechanical Specifications S TRANE other interior unit components Grilles are factory mounted louvered galvanized steel mesh panels finished with an air dry paint Grilles will cover all open ends of units Compressors Trane 3 D Scroll compressors have simple mechanical design with only three major moving parts Scroll type compression provides inherently low vibration The 3 D Scroll provides a completely enclosed compression chamber which leads to increased efficiency Exhaustive testing on the 3 D Scroll including start up with the shell full of liquid has proven that slugging does not fail involutes Direct drive 3600 rpm suction gas cooled hermetic motor Trane 3 D Scroll compressor includes centrifugal oil pump oil level sight glass and oil charging valve Each compressor shall have crankcase heaters installed properly sized to minimize the amount of liquid refrigerant present in the oil sump during off cycles Refrigerant Circuits and Capacity Modulation Twenty to 30 ton sizes have a single refrigerant circuit Forty to 60 ton sizes have dual refrigerant circuits Each refrigerant circuit has twoTrane 3 D Scroll compressors piped in parallel with a passive oil management system Passive oil management system maintains proper oil levels within compre
22. functions Extemal Auto Stop A set of contacts or switches can be field installed that will start and stop the chiller Demand Limit The UCM will accept an input from a field installed device which will prevent one or more compressors from operating The user can select the number of compressors to be turned off Leaving Solution Reset This flexible option allows active leaving solution reset based on customer selectable inputs from the zone entering solution temperature or outside air temperature When the application is sensitive to one of these parameters subcooling of critical zones is prevented Optional Control Features Compressor Current Sensing This option will measure and average the amp draw of 2 phases of each compressor Superheat Subcooling Option This option will include the necessary temperature and pressure sensors to measure and calculate the chiller s superheat and subcooling numbers for each circuit These temperatures and pressures along with calculated values of superheat subcool will be displayed in the status menu of the Human Interface No external refrigerant gauges need to be installed on the chiller for the system operator to check out these conditions Extemal Leaving Solution Set point Remote set point potentiometer can be ordered to allow adjustment of the leaving solution set point remotely 35 e TRANE Generic Building Automation System Module GBAS T
23. is complete There are two optional ice building modes that can be selected through the HI Ice building is terminated when the customer provide contacts are opened Ice Building Stop is initiated from the Tracer or the entering solution temperature reaches or drops below the ice building terminate set point Option 1 One time Ice building mode allows the unit to run fully loaded until the entering solution temperature falls to the active ice building terminate set point IBTS When the entering solution temperature reaches the terminate set point the unit will go through pumpdown if enabled and remain in Ice Complete standby mode until the ice build mode is terminated Option 2 Continuous ice build mode allows the unit to run fully loaded until the entering solution temperature falls to the active ice building terminate set point IBTS When the entering solution temperature reaches the terminate set point the unit will go through pumpdown if enabled and remain in Ice build delay The unit will remain in ice build standby until the ice build timer expires The unit will then start the pump and wait for the loop stabilization timer to expire The unit will run fully loaded until the entering solution temperature falls below the ice build termination set point The unit will continue cycling through these ice building states until the Ice build mode is terminated or changed to option 1 CG PRC007 EN Table ED 1 Elect
24. nn 2 D e T 61 8 Lee 166mm EEN ase re 1 CONTROL 2 1 965mm EEN i PANEL 1854mm d ch LI 7 V 6 6 3 8 z T 1991mm 1 3 5 8 DIA ja E 4 92mm x 2 8 1 4 LINE VOLTAGE E 8 819mm a 1 1 4 x 4 1 2 SLOT 21 2 L 32mm X 114mm d 64mm CONTROL CONN DIA HOLES 4 LIFTING LOCATIONS LEFT SIDE VIEW vedo 172 Fo 572mm ech 406mm 4 i 8 K 5178 N 6 6e 150mm 1981mm CG PRC007 EN H 2 Grooved Pipe Connection Woter Inlet 2 Grooved Pipe Connection Water Outlet te A 550mm Rear View Access Hole Locations FRONT VIEW 43 Gi TRANE Dimensional Data Figure DD 6 CGAF C40 Unit Dimensions 2 3 4 ei f 70mm 1 3 32 4x 30V MAX 28mm O je 7y 1 4 y DH D preja 8 0 314 2242mm 2438mm SA 3 8 sam 8 Je s o 1 8 z o 1 8 MINIMUM CLEARANCE 949mm 203mm 918mm 918mm SE zali 1 3 32 1X HEAT TAPE POWER J a 5 1006mm 889mm v 2 4 6 er 5 7 8 28mm 858mm 149mm Cas CONDUIT MAIN POWER tl 76mm 7 4 3 8 9 3 4 En CONNECTIONS BOTTOM Dasa 248mm 71 8 SEE DETAIL A 181mm 7 1 5 8 35 8 e 2175mm 92mm DETAIL A NO OBSTRUCTIONS 5 AIR FLOW OPTIONAL DAMPER l T 3 4 DIA X 6 MTG HOLES 1 174 mam at 70mm 19mm 32mm 8 0 1 24 38mm TOP VIEW M
25. oa 724mm i i LZ att ye ns H 1 I 1 T 9 3 4 L e i edi G zade 552mm 55 8 pip r 92mm i dr L LINE VOLTAGE i T D D i 2 Grooved Pipe 11 4 x 4 1 2 V SLOT i Connection 32mm X 114 Cer LEFT SIDE VIEW CONTROL CONN d Water Inlet H 2 Grooved Pipe RAM 9 178 O Connection mm Y GC o KE Outlet 5 1 8 ger v 130mm 9BTmm ae DIA HOLES 4 FRONT VIEW e CG PRC007 EN Front View Access Hole Locations LIFTING LOCATIONS 41 Gi TRANE Dimensional Data Figure DD 4 CGAF C25 Unit Dimensions 2 3 4 E 70mm 1 3 32 4X 3DV MAX 28mm zi r 83mm 3 1 3 8 949mm Aw x e je avi j 3 3 5 8 IM d SE E ZC 1 3 32 1X HEAT TAPE POWER 2242mm 1006mm 889mm m la 5 7 8 4 28mm 2 9 i EN 6 18 g o 838mm 49mm p 1832mm siis CONDUIT MAIN POWER 203mm 1832mm 2438mm H WM si MINIMUM CLEARANCE 9 3 4 F LC Ad DIA x 4 MTG HOLES 248mm Jali Im N amm f i CONNECTIONS BOTTOM K 3 5 8 kp SEE DETAIL A i i 92mm a9 1 2 i 1461mm i d s DETAIL A ae 5 0 1 8 E EE eer ie Oe AMON a aaa na d 1527mm 1060mm NO OBSTRUCTIONS i 3 AIR FLOW 7 H J T OPTIONAL DAMPER 2 3 4 14 4 dee 70mm 32mm 8 0 i t 14 1 2 2438mm i DI 343mm TOP VIEW MINIMUM CLEARANCE CONTROL oe S s PANEL 15
26. shall be provided to control all unit functions The control system shall be suitable to control comfort and process applications The controls shall be factory installed and mounted in the main control panel All factory installed controls shall be fully commissioned run tested at the factory The unit shall have a Human Interface Panel with a 16 key keypad a 2 line X 40 character clear English display as standard to provide the operator with full adjustment and display of control data functions The unit controls shall be used as a stand alone controller or as part of a building management system involving multiple units 1 The unit shall be equipped with a complete microprocessor control system This system shall consist of temperature and pressure thermistor and transducer sensors printed circuit boards modules and a unit mounted Human Interface Panel Modules boards shall be individually replaceable for ease of service All microprocessors boards and sensors shall be factory mounted wired and tested The microprocessor boards shall be stand alone DDC controls not dependent on communications with an on site PC or a Building Management Network The microprocessors shall be equipped with onboard diagnostics indicating that all 49 Gi TRANE hardware software and interconnecting wiring are in proper operating condition The modules boards shall be protected to prevent RFI and voltage transients from aff
27. unit operation Signals from the chilled water pump contactor auxiliary or a flow switch are wired to the chilled waterflow interlock Signals from a time clock or some other remote device are wired to the external auto stop input Unit controls do not provide an output to turn pumps on and off Controls Figure C 1 Stand Alone Unit Required Features 1 External Auto Stop Standard or 2 Chilled Waterflow Interlock Standard Trane Integrated Comfort System Interface A single twisted pair of wires tied directly between the CGA unit and aTracer system provides control monitoring and diagnostic capabilities Control functions include auto stop compressor operation lockout for kw demand limiting In addition the Tracer system can provide sequencing control for two or three CGA units on the same chilled water loop Pump sequencing control can be provided from the Tracer system also Sequencing of two CGA s can be accomplished with the DDC Chiller Sequencer Required Features 1 Unit Temperature Controller Standard 2 ICS Interface Panel Extemal Trane Devices Required 1 Tracer 30 Time clock manual switch or chilled water pump contactor auxiliary Figure C 2 Tracer ICS Sys
28. water conditions and control operation is monitored Units ship with a full operating charge of refrigerant and oil Units are constructed of 14 gauge welded galvanized steel frame with 14 and 16 gauge galvanized steel panels and access doors Unit surface is phosphatized and finished with an air dry paint This air dry paint finish is durable enough to withstand a 1000 consecutive hour salt spray application in accordance with standard ASTM B117 Evaporator Braze plate construction designed to withstand a waterside working pressure of 300 psig and a refrigerant side working pressure of 225 psig It has one water pass Etched foil heaters protect the evaporator to an ambient of 20 F Flow Switch This factory supplied item indicates the loss of evaporator flow and ships with the unit for field installation Strainer with installation hardware The strainer is required to prevent collection of particles within the evaporator Condenser Air cooled condenser coils have configurated aluminum fins mechanically bonded to seamless copper tubing and integral subcooling circuits Condensers are factory leak tested with air underwater at 425 psig air pressure Direct drive vertical discharge condenser fans are statically and dynamically balanced Three phase condenser fan motors with permanently lubricated ball bearings and three phase thermal overload protection Optional low ambient units start and operate to 0 F with
29. 10 4 15 5 24 2 117178 6 0 9 18 575 60 3 520 635 77 90 90 4 12 4 19 4 94 143 6 0 9 1 4 S Ba SS L RO Rog y c9 SEH 460 60 3 416 508 120 125 125 4 25 4 178 6 0 9 18 575 60 3 520 635 95 110 100 4 20 2 143 6 0 9 1 4 Notes 1 MCA Minimum Circuit Ampacity is 125 of the largest compressor RLA plus 100 of the other compressor s RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more 2 Maximum Fuse Size 225 of the largest compressor RLA plus 100 of the other compressor s RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more w other load rated at 1 AMP or more Local codes may take precedence NOOR Load Definitions LOAD1 Current of the largest motor compressor or fan motor LOAD2 Sum of the currents of all remaining motors LOADS Current of electric heaters LOAD4 Any other load rated at 1 amp or more MCA 1 25 x LOAD1 LOAD2 LOAD4 MOP 2 25 x LOAD1 LOAD2 LOAD4 CG PRC007 EN RLA Rated in accordance with UL standard 1995 All units are across the line starting Compressors will never start simultaneously One 115 60 1 15 AMP jobsite provided power connection is required to operate the evaporator heat tape Select a fuse rating equal to the MOP value If the MOP value does not equal a standard fuse size as listed in NEC 240 6 select the next lower standard fuse rating NOTE If selected MOP is less than the MC
30. 174 4 0 75 17 415 50 3 373 456 65 80 80 2 25 2 174 4 0 75 1 7 40 CGAF C40 380 50 3 342 418 81 90 90 4 172 110 4 0 75 17 415 50 3 373 456 81 90 90 4 172 110 4 0 75 1 7 50 CGAF C50 380 50 3 342 418 97 110 110 4 15 5 24 2 110 174 6 0 75 1 7 415 50 3 373 456 97 110 110 4 15 5 24 2 110 174 6 0 75 1 7 60 CGAF C60 380 50 3 342 418 119 125 125 4 25 2 174 6 0 75 17 415 50 3 373 456 119 125 125 4 25 2 174 6 0 75 1 7 Notes 1 2 w GO JO Oo P MCA Minimum Circuit Ampacity is 125 of the largest compressor RLA plus 100 of the other compressor s RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more Maximum Fuse Size 225 of the largest compressor RLA plus 100 of the other compressor s RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more Recommended Dual Element Fuse Size 150 of the largest compressor RLA plus 100 of the other compressor s RLA plus the sum of the condenser fan FLA plus any other load rated at 1 AMP or more RLA Rated in accordance with UL standard 1995 Local codes may take precedence Control kw includes operational controls only Does not include evaporator heat tape All units are across the line starting Compressors will never start simultaneously One 240 50 1 5 AMP jobsite provided power connection is required to operate the evaporator heat tape CG PRC007 EN S TRANE Dimensional Data Figure DD 1 CGA 120B Unit Dimensi
31. 2 13 8 19 9 20 0 11 9 18 9 22 1 10 3 17 9 24 4 8 8 16 7 27 0 7 4 50 0 21 5 18 4 14 1 20 6 20 2 12 2 19 5 22 3 10 5 18 5 24 7 9 0 17 3 27 3 7 6 55 0 23 3 18 9 14 8 22 3 20 8 12 9 21 2 22 9 11 1 20 0 25 3 9 5 18 8 27 9 8 1 60 0 25 2 19 4 15 5 24 0 214 13 5 22 9 23 5 117 21 6 26 0 10 0 20 3 28 6 8 5 Table PD 4 25 Ton CGAF C25 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 20 28 15 6 20 9 8 9 14 8 22 9 78 14 0 25 2 6 7 13 2 27 8 5 7 12 3 30 7 48 25 24 17 4 21 4 9 7 16 5 23 4 8 5 157 25 8 7 3 14 7 28 4 6 2 13 8 31 4 5 3 30 19 19 3 21 9 10 6 18 4 24 0 9 2 17 4 26 4 7 9 16 4 29 1 6 8 15 4 32 1 5 8 35 14 21 3 22 5 11 4 20 4 24 6 9 9 19 3 27 0 8 6 18 2 29 8 7 4 174 32 8 63 40 0 23 7 23 1 12 3 22 6 25 3 10 7 21 5 27 8 9 3 20 3 30 6 8 0 19 1 33 7 6 8 42 0 24 6 23 3 12 6 23 5 25 5 11 0 22 3 28 0 9 5 21 1 30 8 8 2 19 8 34 0 7 0 44 0 25 4 23 6 13 0 24 3 25 8 11 3 23 1 28 3 9 8 21 9 31 1 8 4 20 6 34 3 7 2 45 0 25 9 23 7 13 1 24 7 25 9 11 5 23 5 28 4 9 9 22 3 31 3 8 5 21 0 34 4 7 3 46 0 26 3 23 8 13 3 25 2 26 0 11 6 23 9 28 6 10 0 22 7 31 4 8 7 21 3 346 7 4 48 0 27 3 24 1 13 6 26 0 26 3 11 9 24 8 28 9 10 3 23 5 31 7 8 9 22 1 34 9 7 6 50 0 28 2 24 3 13 9 26 9 26 6 12 2 25 6 29 2 10 6 24 3 32 0 9 1 22 9 35 2 7 8 55 0 30 6 25 0 14 7 29 2 27 3
32. 38 8 11 4 35 1 42 9 9 8 33 1 47 5 8 4 31 0 Bai 24 46 0 39 3 35 4 13 3 37 6 39 0 11 6 35 7 43 1 9 9 33 7 47 8 8 5 31 6 53 0 7 2 48 0 40 7 35 8 13 7 38 9 39 4 11 8 36 9 43 5 10 2 34 9 48 2 8 7 32 7 53 4 7 3 50 0 42 1 36 2 14 0 40 2 39 8 12 1 38 2 44 0 10 4 36 1 48 7 8 9 33 9 53 9 7 5 55 0 45 6 37 2 14 7 43 6 40 9 12 8 41 5 45 1 11 0 39 2 49 9 9 4 36 8 55 2 8 0 60 0 49 3 38 2 15 5 47 1 42 0 13 5 44 8 46 3 11 6 42 4 51 1 10 0 39 8 56 5 8 5 Notes Data based on 0 0001 fouling factor at sea level Interpolation between points is permissible Extrapolation beyond points is not permissible EER Energy Efficiency Ratio Btu watt hour Power inputs include compressors water temperatures below 40 F Ratings based on evaporator drop of 10 F condenser fans and control power Rated in accordance with ARI Standard 550 590 98 Minimum recommended ethylene glycol percentage used for leaving water temperatures below 40 F Use the following equation to calculate COP values at other than ARI conditions COP EER x 2928 Ambo CG PRC007 EN 23 Gi TRANE Performance Data 60 HZ Table PD 7 50 Ton CGAF C50 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW FEER 20 28 28 5 39 7 8 6 27 1 43 4 7 5 25 6 47 7 6 4 24 1 52 6
33. 4 DOOR ooa SWING 1060mm SAN NO OBSTRUCTIONS PTIONAL DAMPER L AIR FLOW OPTIONAL DAME 7 des 3 2 L t 2 3 4 3 4 DIA x 6 MTG HOLES 11 4 LJANI Gor ae 1 76mm 19mm 32mm 8 0 i ba i t 41 1 2 2438mm i Us aw JO 33mm TOP VIEW MINIMUM CLEARANCE j E CONTROL 4 6 PANEL 371mm 6 6 3 8 GALA legi a ss 199mm 133mm i sle 2 Vez J K a 1854mm z L O 4 1 4 f DE i L 3 5 8 DIA j H 92mm l UNE VOLTAGE f zi Amm LEFT SIDE VIEW i fa CA 11 4 X 5 1 4 SLOT i DIA HOLES 4 32mm X 133mm H LIFTING LOCATIONS CONTROL CONN j LZ S 366mm Fo G s 8 7 1 2 127mm 2629mm FRONT VIEW CG PRC007 EN 1528mm 3 Grooved Pipe Connection Water Inlet 3 Grooved Pipe Connection Water Outlet Rear View Access Hole Locations 45 Gi TRANE Dimensional Data Figure DD 8 CGAF C60 Unit Dimensions 2 3 4 9 70mm 1 3 32 4X 30V MAX 5 28mm O 31 7 3 1 3 8 eon ka 9 5 7 88 _ _______ E 949mm o 2892mm 8 0 s b ch Di x ia D 2438mm SS z 1 3 32 1X HEAT TAPE POWER 8 1 8 0 7 8 4 0 7 8 MINIMUM CLEARANCE 1006mm 889mm ii 206mm 1241mm 1241mm pe 5 7 8 28mm 838mm 149mm Cas CONDUIT MAIN POWER t 4 6 Toa le 76mm MRN 93 4 t ar CONNECTIONS BOTTOM i oe IP ES SEE DETAIL A i 7 4 3 8 i
34. 5 7 35 14 51 4 54 0 11 4 48 9 59 3 9 9 46 4 65 4 8 5 43 7 72 3 7 3 41 0 80 1 6 1 40 0 57 2 55 6 12 3 54 5 61 1 10 7 51 7 67 3 9 2 48 8 74 4 7 9 45 8 82 2 6 7 42 0 59 2 56 2 12 7 56 5 61 7 11 0 53 6 68 0 9 5 50 6 75 1 8 1 47 5 83 0 69 44 0 61 4 56 8 13 0 58 5 62 3 11 3 55 6 68 7 9 7 52 5 75 9 8 3 49 3 83 8 7 1 45 0 62 5 57 1 13 1 59 6 62 7 11 4 56 6 69 1 9 8 53 4 76 2 8 4 50 2 84 2 7 2 46 0 63 6 57 4 13 3 60 6 63 0 11 5 57 6 69 4 9 9 54 4 76 6 8 5 51 1 846 7 2 48 0 65 8 58 0 13 6 62 7 63 7 11 8 59 6 70 2 10 2 56 3 77 4 8 7 52 9 85 4 7 4 50 0 68 0 58 6 13 9 64 9 64 4 12 1 61 7 70 9 10 4 58 3 78 2 8 9 54 8 86 3 7 6 55 0 73 8 60 3 14 7 70 4 66 1 12 8 66 9 72 8 11 0 63 3 80 2 9 5 59 6 88 4 8 1 60 0 79 7 62 0 15 4 76 1 68 0 13 4 72 4 74 8 11 6 68 5 82 4 10 0 64 5 90 7 8 5 Notes Data based on 0 0001 fouling factor at sea level Interpolation between points is permissible Extrapolation beyond points is not permissible EER Energy Efficiency Ratio Btu watt hour Power inputs include compressors water temperatures below 40 F Ratings based on evaporator drop of 10 F condenser fans and control power Rated in accordance with ARI Standard 550 590 98 Minimum recommended ethylene glycol percentage used for leaving water temperatures below 40 F Use the following equation to calculate COP values at other than ARI conditions COP EER x 2928 ARWN D JO Table PD 9 Coefficient of Performance COP and Integrated Part Load Value
35. 60 60 Tons DIGIT 8 Voltage amp Start Characteristics E 200 60 3 XL F 230 60 3 XL 4 460 60 3 XL 5 575 60 3 XL 9 380 50 3 XL D 415 50 3 XL S Special DIGIT 9 Factory Input A Standard 1 The service digit for each model number contains 25 digits all 25 digits must be referenced CG PRC007 EN DIGIT 11 Leaving Solution Set point A 40 50 Deg F w o Ice Machine 30 39 Deg F w o Ice Machine 51 65 Deg F w o Ice Machine 20 29 Deg F w o Ice Machine 40 50 Deg F with Ice Machine 30 39 Deg F with Ice Machine 51 65 Deg F with Ice Machine 20 29 Deg F with Ice Machine ARON MOW DIGIT 12 Agency Approval 1 UL CSA 0 None DIGITS 13 25 Miscellaneous A Trane Communication Interface TCI Module B No Unit Heat Tape 50 Hz Only C Compressor Current Sensing CSM D Unit Mounted Disconnect Switch Nonfused E Unit Isolators Neoprene F Unit Isolators Spring G Superheat Sub Cooling H Hot Gas Bypass 0 10 v Analog P Remote Set point Potentiometer Q Zone Sensor Chilled Solution Reset V Copper Fin Condenser Coils W Electronic Low Ambient Damper s Y Inter Processor Communication Bridge IPCB 9 Packed Stock Unit The following items can be ordered for separate shipment e Unit Isolators Neoprene e Unit Isolators Spring e Electronic Low Ambient Damper s e Trane Communication Interface Module TCI e Generic BA S Modu
36. 6mm EE S65mm 6 1 3 8 4w H r l 1864mm Timm i i Sg 2 X 1727mm 2 3 41 4 tr 692mm x AA nn 92mm LINE VOLTAGE 2 Grooved Pipe v Connection 1 1 4 X 4 1 2 a Wat 32mm X Te i ES LEFT SIDE VIEW CONTROL CONN 4 42 Front View Access Hole Locations 2 Grooved Pipe OT Connection Water Outlet ZE DIA HOLES 4 isan Mt 1 2 1 292mm on T T 51 8 e SE 130mm fo8imm FRONT VIEW 6 Ge LIFTING LOCATIONS CG PRC007 EN Figure DD 5 CGAF C30 Unit Dimensions Dimensional Data S TRANE 2 3 4 E 70mm 1 3 52 4x 30V MAX T o 28mm TeS 1 4 8 0 ei Ef 2242mm 2438mm H B 3 0 1 8 3 0 1 8 MINIMUM CLEARANCE 31 4 H 203mm D Sam STBMM S k 83mm soe z 4 STT V 949mm EE 2 1 1 3 32 1X HEAT TAPE POWER 1006mm 889mm 5 7 8 SERA z s CONNECTIONS BOTTOM ZE 338mm 149mm 3 CONDUIT MAIN POWER 2245mm SS TAIL A WE SEE DETAIL Z it zde 7 1 5 8 mm we S 2175mm 4 i i 35 8 pp 92mm DETAIL A 7 3 2 L 2 3 4 En DIA X 6 MTG HOLES 11 4 70mm 19mm 32mm 8 0 NO OBSTRUCTIONS NO OBSTRUCTIONS 2438mm AIR FLOW AIR FLOW OPTIONAL DAMPER TOP VIEW MINIMUM CLEARANCE Li e EE l v 1 1 2 r Z
37. 7 28 3 12 6 28 4 30 9 11 0 27 0 34 0 9 5 25 6 37 4 8 2 24 1 41 3 7 0 44 o 30 8 28 5 13 0 29 5 31 2 113 28 0 34 3 9 8 26 6 37 7 8 4 25 0 41 6 7 2 45 0 31 4 28 6 13 1 30 0 31 3 11 5 28 5 34 4 9 9 27 0 37 9 8 6 25 5 41 8 7 3 46 0 31 9 28 8 13 3 30 5 31 5 11 6 29 0 34 6 10 1 27 5 38 1 8 7 26 0 41 9 7 4 48 o 33 0 29 0 13 6 31 6 31 8 11 9 30 1 34 9 10 3 28 5 38 4 8 9 26 9 42 3 7 6 50 0 34 1 29 3 14 0 32 7 32 0 12 2 31 1 35 2 10 6 29 5 38 7 9 1 27 9 42 6 7 8 55 0 37 0 29 9 14 8 35 5 32 8 13 0 33 8 36 0 11 3 32 1 39 6 9 7 30 3 43 5 84 60 o 40 1 30 6 15 7 38 4 33 5 13 7 36 6 36 8 119 34 8 40 4 10 3 32 9 445 89 Table PD 6 40Ton CGAF C40 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 20 28 23 0 30 9 8 9 21 9 34 1 7 7 20 7 37 9 6 6 19 5 42 3 5 5 18 1 472 46 25 24 25 7 31 7 9 7 24 5 35 0 8 4 23 2 38 8 7 2 21 8 43 2 6 1 20 3 48 2 5 1 30 19 28 6 32 5 10 6 27 3 35 8 9 2 25 9 39 7 7 8 24 4 44 2 6 6 22 8 49 2 5 5 35 14 31 8 33 3 11 4 30 3 36 7 9 9 28 8 40 7 8 5 27 1 45 2 7 2 25 3 50 3 6 0 40 0 35 4 34 3 12 4 33 8 37 8 10 7 32 1 41 9 9 2 30 2 46 4 7 8 28 3 51 6 6 6 42 0 36 7 34 7 12 7 35 0 38 2 11 0 33 3 42 3 9 4 31 4 46 9 8 0 29 4 52 0 68 44 0 38 0 35 0 13 0 36 3 38 6 11 3 34 5 42 7 9 7 32 5 47 3 8 2 30 5 52 5 7 0 45 0 38 7 35 2 13 2 36 9
38. 700 Nominal RPM 1100 1100 1140 1140 1140 1140 1140 1140 Tip Speed Ft Min 8060 7490 7750 7750 7750 7750 7750 7750 Motor HP ea 1 0 1 2 1 0 1 0 1 0 1 0 1 0 1 0 Drive Type Direct Direct Direct Direct Direct Direct Direct Direct Minimum Outdoor Air Temperature Permissible For Mechanical Cooling Standard Ambient Control Unit F 50 50 30 30 30 30 30 30 Standard Ambient w Hot Gas Bypass F 60 60 40 40 40 40 40 40 Low Ambient Option F 0 0 0 0 0 0 0 0 Low Ambient Control w Hot Gas Bypass F 15 15 10 10 10 10 10 10 General Unit Unload Steps 100 50 100 50 100 50 100 60 40 100 50 100 75 50 25 100 80 60 30 100 75 50 25 No of Independent Refrig Circuits 2 2 1 1 1 2 2 2 Refrigerant Charge lbs R22 Circuit 8 25 11 5 40 5 54 0 72 0 38 0 49 0 75 00 Oil Charge Pints Circuit 4 1 7 5 17 0 22 3 27 6 17 0 22 3 27 6 Unloading steps depend upon which compressor is lead compressor Notes 1 Minimum start up ambient based on unit at minimum step of unloading and a 5 mph wind across the condenser 2 Includes piping internal to chiller 3 At 95 F ambient 4 Does not include subcooling portion of coil CG PRC007 EN TRANE Performance S Adjustment Factors Table PAF 1 Performance Adjustment Factors 10 amp 15 Ton Units Only Chilled Altitude Fouling Water Sea Level 2 000 Feet 4 000 Feet 6 000 Feet Factor AT CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW 6 1 00 1 66 1 00 0 98 1 63 1 01 0 95 1 59 1 02 0
39. 93 1 54 1 05 8 1 00 1 25 1 00 0 98 1 22 1 01 0 96 1 19 1 02 0 93 1 16 1 05 0 00025 10 1 00 1 00 1 00 0 98 0 98 1 01 0 95 0 95 1 02 0 92 0 92 1 04 12 1 00 0 83 1 00 0 98 0 81 1 01 0 95 0 79 1 02 0 92 0 77 1 04 14 0 99 0 71 1 00 0 97 0 59 1 01 0 95 0 68 1 02 0 92 0 66 1 04 6 0 96 1 60 0 98 0 94 1 57 0 99 0 92 1 53 1 00 0 90 1 49 1 01 8 0 96 1 20 0 98 0 94 1 18 0 99 0 92 1 15 1 00 0 90 1 12 1 01 0 001 10 0 96 0 96 0 98 0 94 0 94 0 99 0 92 0 92 1 00 0 89 0 89 1 01 12 0 96 0 80 0 98 0 94 0 79 0 99 0 92 0 77 1 00 0 89 0 74 1 01 14 0 96 0 68 0 98 0 94 0 67 0 99 0 92 0 65 1 00 0 89 0 66 1 01 8 0 93 1 15 0 95 0 91 1 13 0 96 0 88 1 10 0 98 0 86 1 07 0 99 0 002 10 0 90 0 90 0 94 0 89 0 88 0 95 0 87 0 87 0 96 0 85 0 84 0 98 12 0 90 0 75 0 94 0 88 0 73 0 95 0 86 0 72 0 95 0 84 0 70 0 98 14 0 90 0 64 0 94 0 87 0 63 0 95 0 86 0 82 0 95 0 84 0 60 0 98 Standard chilled water A is 8 12 for CGA120 180 Standard chilled water A is 6 16 for CGAF 20 60 Table PAF 2 Performance Adjustment Factors 20 60 Ton Units Only Chilled Altitude Fouling Water Sea Level 2 000 Feet 4 000 Feet 6 000 Feet Factor AT CAP GPM KW CAP GPM KW CAP GPM KW CAP GPM KW 6 0 987 1 650 0 993 0 967 1 640 1 003 0 952 1 620 1 019 0 932 1 570 1 029 8 0 993 1 250 0 997 0 973 1 240 1 007 0 956 1 220 1 025 0 935 1 190 1 035 0 00025 10 1 000 1 000 1 000 0 980 0 990 1 010 0 960 0 970 1 030 0 940 0 940 1 040 12 1 007 0 820 1 003 0 987 0 810 1 013 0 966 0 800 1 035 0 945 0 780 1 045
40. A then reselect the lowest standard maximum fuse size which is equal to or larger than the MCA provided the reselected fuse size does not exceed 800 amps Recommended Dual Element Fuse Size 150 of the largest compressor RLA plus 100 of the other compressor s RLA plus the sum of the condenser fan FLA plus any RDE 1 5 x LOAD1 LOAD2 LOAD4 Select a fuse rating equal to the RDE value If the RDE value does not equal a standard fuse size as listed in NEC 240 6 select the next higher standard fuse rating NOTE If the selected RDE is greater than the selected MOP value then reselect the RDE value to equal the MOP value DSS 1 5x LOAD1 LOAD2 LOAD3 LOAD4 Select a disconnect switch size equal to or larger than the DSS value calculated 37 Gi TRANE 38 Table ED 2 Electrical Data Electrical Data 50 HZ UnitWiring Motor Data Model Nameplate Voltage Max Fuse Rec Dual Compressor Ea Fans Ea Tons Number Voltage Range MCA Size Element Qty RLA LRA Qty KW FLA 10 CGA100BD 380 415 50 3 342 456 24 1 30 2 9 5 63 1 0 57 2 7 15 CGA150BD 380 415 50 3 342 456 32 7 45 2 13 1 99 5 2 0 33 1 6 20 CGAF C20 380 50 3 342 418 44 60 50 2 172 110 2 0 75 1 7 415 50 3 373 456 44 60 50 2 172 110 2 0 75 1 7 25 CGAF C25 38050 3 342 418 55 80 70 2 17 3 25 2 110 174 3 0 75 17 415 50 3 373 456 55 80 70 2 173 25 2 110 174 3 0 75 1 7 30 CGAF C30 380 50 3 342 418 65 80 80 2 25 2
41. ATERFLOW LIMITS The minimum water flow rates are given in the General Data section of this catalog Evaporator flow rates below the tabulated values will result in laminar flow causing scaling stratification freeze up problems and poor temperature control The maximum evaporator water flow rate is given in the General Data section Flow rates exceeding those listed will result in excessive tube erosion and very high pressure drop across the evaporator Trane recommends that constant water flow be maintained at all times through the evaporator Because the temperature controller strictly senses temperature variable flow through the evaporator may result in loss of control and localized freezing or nuisance low temperature cutouts Consult your local Trane sales engineer if your application requires varying flows TEMPERATURE LIMITS 1 Leaving Solution Temperature range The minimum leaving solution temperature set point is dependent on the number of capacity stages and the temperature difference across the evaporator Water supply temperature set points less than these values result in suction temperatures at or below the freezing point of cold water A glycol solution is required for operation below the recommended minimum set points Refer to the Performance Adjustment Factors section of this catalog to determine the minimum leaving chilled solution set 11 Gi TRANE point and adequate ethylene gl
42. Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 20 28 9 3 12 2 9 1 8 9 13 6 7 8 8 4 15 3 6 6 7 9 17 2 5 5 7 3 19 3 4 5 25 24 10 3 12 5 9 9 9 8 13 9 8 5 9 3 15 6 7 2 8 7 17 5 6 0 8 1 19 7 5 0 30 19 11 4 12 7 10 7 10 9 14 2 9 2 10 3 15 9 7 8 9 7 17 8 6 5 9 0 20 0 5 4 35 14 12 6 13 0 11 6 12 0 14 5 9 9 11 4 16 2 8 4 10 7 18 2 7 1 10 0 20 4 59 40 0 13 9 13 3 12 5 13 3 14 9 10 7 12 6 16 6 9 1 11 9 18 6 7 7 11 1 20 9 64 42 0 14 4 13 5 12 9 13 8 15 0 11 0 13 1 16 8 9 4 12 3 18 8 7 9 11 6 21 1 66 44 0 15 0 13 6 13 2 14 3 15 1 11 3 13 6 16 9 9 6 12 8 19 0 8 1 12 0 21 3 68 45 0 15 2 13 7 13 4 14 5 15 2 11 5 13 8 17 0 9 7 13 0 19 0 8 2 12 2 21 3 69 46 0 15 5 13 7 13 5 14 8 15 3 11 6 14 1 17 1 9 9 13 3 19 1 8 3 12 5 21 4 7 0 48 0 16 0 13 9 13 9 15 3 15 4 11 9 14 6 17 2 10 1 13 8 19 3 8 6 12 9 216 7 2 50 0 16 6 14 0 14 2 15 9 15 6 12 2 15 1 17 4 10 4 14 3 19 5 8 8 13 4 21 8 7 4 55 0 18 0 14 4 15 1 17 2 16 0 12 9 16 4 17 8 11 0 15 5 19 9 9 3 14 6 223 7 9 60 0 19 5 14 8 15 9 18 7 16 4 13 7 17 8 18 3 11 7 16 9 20 4 9 9 15 9 22 8 8 4 Notes Based on the ethylene glycol concentration shown a 10 delta T a fouling factor of 0 0001 and sea level pressure Performance must be corrected for glycol concentrations other than those showing delta T other t
43. Gi TRANE The chiller capacity tables presented in the Performance Data section cover the most frequently encountered leaving water temperatures The tables reflect a 10 F temperature drop through the evaporator For temperature drops other than 10 F fouling factors other than 0 0001 in accordance with ARI Standard 550 590 98 and for units operating at altitudes that are significantly greater than sea level refer to the Performance Adjustment Factors section and apply the appropriate adjustment factors For chilled brine selections refer to the Performance Adjustment Factors section for ethylene glycol adjustment factors To select a Trane air cooled chiller the following information is required 1 Design system load in tons of refrigeration 2 Design leaving chilled water temperature 3 Design chilled water temperature drop 4 Design ambient temperature 5 Evaporator fouling factor Evaporator chilled water flow rate can be determined by using the following formula Tons x 24 GPM Temperature Drop Degrees F NOTE Flow rate must fall within the limits specified in the General Data section of this catalog SELECTION EXAMPLE Given Required System Load 53 tons Leaving Chilled Water Temperature LCWT 45 F Chilled Water Temperature Drop 10 F Design Ambient Temperature 95 F Evaporator Fouling Factor 0 0001 14 Selection Procedure 1 To calculate t
44. INIMUM CLEARANCE 5 297 j H D 133mm 47 6 CONTROL 1371mm Dk E i PANEL 1854mm e V Me Z X 6 6 3 8 Rn IT T C 1991mm i T 3 5 8 DIA i LI a 1 8 92mm i Ss a1 3mm LINE VOLTAGE i 2 1 2 r D 64mm 1 1 4 x 5 1 4 SLOT CG 4 DIA HOLES 4 LEFT SIDE VIEW 32mm X 133mm KE E TE ee a LIFTING LOCATIONS CONTROL CONN 4 SEHR NEE E DH E dE 1 2 i i i i i i i i z p gt KT krma EE Z ss i E 7 f f f 78 000 5 125 130mm 1981mm FRONT VIEW 3 Grooved Pipe Connection Water Inlet Gs 3 Grooved Pipe Connection Water Outlet nosne 1528mm View Access Hole Locations Rear CG PRC007 EN Figure DD 7 CGAF C50 Unit Dimensions Dimensional Data S TRANE 2 3 4 E 70mm i 1 3 32 4X 30V MAX os 5 28mm EV six fe 9 5 7 8 S N 83mm 2892mm 8 0 3 1 3 8 i l S z g 2438mm 949mm 8 1 8 4 0 7 8 4 0 7 8 MINIMUM CLEARANCE 3 3 5 8 2 1 206mm 1241mm 1241mm 008 ar 1 3 32 1X HEAT TAPE POWER aa pkgs 5 7 8 Ge 28mm D D r 858mm 149mm fZ CONDUIT MAIN POWER L LS 76mm CONNECTIONS BOTTOM l r e SEE DETAIL A i x e ie te 7 E 7 1 8 l i SE TBimm E l mm A 1 i i 35 8 k 7 1 5 8 92mm NG 2175mm DETAIL A 3 5 3
45. TEMPERATURE SET POINTS The minimum leaving chilled water temperature set point for water is listed in the following table Table SP 1 Minimum Leaving Chilled Water Temperature Set points for Water Evaporator Minimum Leaving Chilled Water Temperature Temperature Set point F Difference CGAF CGAF Degrees F C20 C25 C30 C40 C50 C60 6 40 39 8 41 39 10 42 40 12 43 40 14 44 41 16 45 41 18 46 42 These are for units without HGBP for units with OBE add 2 F to each minimum temperature in the table For those applications reguiring lower set points a glycol solution must be used The minimum leaving chilled water set point for a glycol solution can be calculated using the following eguation LCWS Minimum GFT 5 AT Evap of stages of capacity LCWS Leaving Chilled Water Set point F GFT Glycol Freezing Temperature F DeltaT the difference between the temperature of the water entering and leaving the evaporator AT Solution freezing point temperatures can be found in the Performance Data section and the number of stages of capacity in the General Data section For selection assistance refer to the CGA Chiller Selection program CG PRC007 EN DIGIT 1 2 3 Unit Type CGA Air Cooled Cold Generator DIGITS 4 5 6 Nominal Capacity MBh 100 8 Tons 50 Hz Model only 120 10 Tons 60 Hz Model only 150 12 5 Tons 50 Hz Model Only 180 15 Tons 60 Hz Model Only
46. ans etc when servicing or troubleshooting the unit This menu is accessible only at the unit mounted Human Interface Panel STOP AUTO when the chiller is in the stop mode pressing the AUTO KEY will cause the UCM to go into either the Auto Local or Auto ICS mode depending on the set point source setting Chiller Capacity Control The Unit Control Module UCM will control leaving solution temperature to a user adjustable set point The UCM monitors the leaving solution temperature sensor and determines how far away this temperature is from the leaving solution set point and how long it has been there The rate at which capacity stages are added or subtracted is determined by a control integrator algorithm This algorithm calculates a control integrator value based upon the inputs from the control response set point the difference between the leaving solution set point and the leaving solution temperature the number of capacity steps and the design delta temperature This function can be user defined for comfort or process control applications The following set points are integrated into the capacity control algorithm Leaving Solution Set point LSS The LSS is adjustable from the factory as standard within a range from 40 50 F Three other possible ranges can be selected and ordered from the factory 20 29 30 39 and 51 65 F When these options are selected the unit hardware changes to allow the unit to ope
47. apacity 3 7 3 5 3 4 3 1 3 0 2 9 System KW 3 8 4 2 4 6 5 1 5 7 6 0 Table PD 20 15Ton CGA 180 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 13 8 11 7 9 7 8 1 6 6 6 0 100 Capacity 12 6 12 0 11 4 10 7 10 0 9 7 System KW 11 0 12 4 14 0 15 9 18 1 19 3 EER 12 5 10 7 8 9 7 4 6 1 5 5 50 Capacity 5 8 5 5 5 3 4 9 4 6 4 5 System KW 5 5 6 3 7 1 8 1 9 1 9 7 Table PD 21 20 Ton CGAF C20 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 14 3 12 3 10 4 8 8 7 3 6 7 100 Capacity 16 6 15 8 15 0 14 2 13 2 12 8 System KW 13 9 15 5 17 3 19 3 21 6 22 9 EER 16 2 14 1 12 2 10 4 8 8 8 0 50 Capacity 8 9 8 5 8 1 7 7 7 2 7 0 System KW 6 6 7 2 8 0 8 9 9 9 10 4 Table PD 22 25Ton CGAF C25 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 14 2 12 3 10 6 9 0 7 6 7 0 100 Capacity 21 7 20 7 19 7 18 6 17 4 16 8 System KW 18 3 20 1 22 3 24 8 27 5 29 0 EER 15 7 13 7 11 9 10 2 8 7 7 9 60 Capacity 13 8 13 2 12 6 11 9 11 2 10 8 System KW 10 6 11 6 12 7 14 1 15 6 16 4 EER 15 7 13 8 12 0 10 3 8 8 8 1 40 Capacity 9 4 9 0 8 6 8 2 7 7 7 4 System KW 7 2 7 9 8 6 9 5 10 5 11 1 Table PD 23 30Ton CGAF C30 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 14 3 12 4 10 6 9 1 7 7 7 0 100 Capacity 26 2 25 1 23 9 22 6 21 2 20 5 System KW 22 0 24 3 27 0 29 9 33 3 35 1 EER 15 2 13 4 11 7 10 0 8 6 7 9 50 Capacity 14 0 13 4 12
48. assed for four minutes this allows time for suction pressure to build sufficiently for the low pressure cutout contacts to close Hot Gas Bypass Timer Solenoid HGBT HGBS The hot gas bypass option is factory installed only and is used in a chilled water system to keep the first stage compressor on line during short no load or light load conditions When Water Temperature Thermostat WTT first stage opens 24 volt power is supplied to the Compressor Contactor CC1 through Hot Gas BypassTimer HGBT pins one and four Power is also applied from WTTB to HGBT coil fixed 30 minute time delay pickup and to the Hot Gas Bypass Solenoid HGBS through HGBT pins eight and five If first stage cooling remains satisfied for 30 minutes HGBT will energize and shut down the compressor If there is a call for cooling during HGBP mode the unit will return to cooling mode The adjustable hot gas bypass valve is factory set at 70 psig Note Hot gas bypass is available only on the lead compressor circuit Anti Short Cycle Timers ASCT1 ASCT2 An anti short cycle timer is provided in each compressor control circuit to protect the compressors from starting too frequently This can occur as a result of just over 0 or just over 50 of the unit capacity or because of sudden power outages of short duration Whenever the contacts of the water temperature thermostat WTT open or when there is a momentary power outage the anti
49. compressor anti recycle timing and lead lag functions into standard chiller operation Interface with outside systems such as building automation controls is flexible and easy CG PRC007 EN Controls S TRANE Simple Interface with All Control Systems The IntelliPak controls afford simple interface with Trane Tracer systems providing broad control capabilities for Building Automation systems For control systems other than Trane two generic building automation system interfaces are available and offer simplicity and flexibility in accessing unit functions Safety Controls A centralized microcomputer offers a higher level of machine protection Since the safety controls are smarter they limit compressor operation to avoid compressor or evaporator failures thereby minimizing nuisance shutdown For instance the Unit Control Module UCM will provide condenser low Figure C 3 Human Interface Display pressure control by staging condenser fans on or off in an effort to maintain the saturated condensing temperature within a fixed range Overall the safety controls help keep the cooling system on line and operating safely Monitoring and Diagnostics Since the microcomputer provides all control functions it can easily indicate such parameters as leaving chilled solution temperature and capacity staging If a failure does occur the diagnostic alarm will be displayed giving specific information about the fa
50. d operating hours e Flow Switch Required as a safety interlock to prevent operation of unit without evaporator flow available option for field installation only e Integrated Comfort Systems ICS Interface Provides the ability to communicate with Trane Tracer or Tracker building management systems via aThermostat Control Module TCM e Gauges Monitor suction and discharge pressures Gi TRANE Trane s 20 60 ton chillers offer the same time tested and proven control technology that is applied to the IntelliPak Air Cooled rooftops Superior control makes the IntelliPak a truly advanced chiller Standard Features Microprocessor Control The IntelliPak chiller s Unit Control Module UCM is an innovative modular microprocessor control design It coordinates the actions of the chiller in an efficient manner and provides stand alone operation of the unit A Human Interface HI Panel is a standard component of the IntelliPak Chiller Access to all unit controls is via the Human Interface Panel Factory Run Testing In addition to outstanding efficient performance IntelliPak Chillers have established a reputation for reliable operation Aside from the individual component tests allTrane 20 to 60 ton chillers are factory run tested with water running through the evaporator to confirm proper operation Control operation and current draw are both monitored to assure safe reliable operation Featur
51. e Sufficient Unit to Unit Clearance Units should be separated from each other by sufficient distance to prevent warm air recirculation or coil starvation Doubling the recommended single unit air cooled chiller clearances will generally prove to be adeguate e Walled Enclosure Installations When the unit is placed in an enclosure or small depression the top of the fans should be no lower than the top of the enclosure or depression If they are consideration should be given to ducting the top of the unit Ducting individual fans however is not recommended Such applications should always be reviewed with the local Trane sales engineer UH VOLTAGE Nominal voltage is the nameplate rating voltage The actual range of line voltages at which the eguipment can satisfactorily operate are given below Voltage Rated Utilization Voltage Range 200 180 220 208 230 187 253 230 208 254 380 342 418 400 360 440 415 374 456 460 414 508 575 520 635 WATER TREATMENT Dirt scale products of corrosion and other foreign material in the water will adversely affect heat transfer between the water and system components Foreign matter in the chilled water system can also increase pressure drop and conseguently reduce waterflow Proper water treatment must be determined locally and depends on the type of system and local water characteristics Do not use salt or brackish water in Trane chil
52. e unit A single RHI can be used to monitor and control up to 4 chillers each containing an IPCB The Main Menu of the Human Interface panel STATUS used to monitor all temperatures pressures set points input and output status The CUSTOM KEY will have four reports that can be user defined The report screens consist of the data available in the main status menu SET POINTS used to edit all factory preset default set points and assign set point sources DIAGNOSTICS used to review active and historical lists of diagnostic conditions A total of 41 different diagnostics can be read at the Human Interface Panel The last 20 diagnostics can be held in an active history buffer log at the Human Interface Panel SETUP Control parameters sensor selections set point source selections output definitions and numerous other points can be edited from this menu All points have factory preset values so 34 Controls unnecessary editing is kept to a minimum CONFIGURATION Preset with the proper configuration for the unit as it ships from the factory this information would be edited only if certain features were physically added or deleted from the unit For example if a field supplied Trane Communication Interface TCI module was added to the unit in the field the unit configuration would need to be edited to reflect that feature SERVICE used to selectively control outputs for compressors f
53. ease Installation Installation time and effort are reduced when dealing with a significantly smaller and lighter unit In addition having electrical and water connections on the same side of the unit and a single point main power connection serves to make installation easier The unit arrives at the jobsite fully assembled tested charged and ready to provide chilled water Ease of Service The control panel and unit panels are completely removable for service accessibility and convenience ICS Interface Communication with Trane Tracer or Tracker is possible through the ICS Interface on the 10 and 15 ton Cold Generator chiller CG PRC007 EN Features and Benefits S TRANE Optional Features e Hot Gas Bypass Allows unit operation below the minimum step of unloading e Low Ambient Head Pressure Control Modulates the rpm of the fan motor in response to outdoor ambient temperature and unit head pressure Provides unit cooling operation down to outdoor temperatures of 0 F e Coil Guard Metal grille with PVC coating to protect the condenser coil e Isolation Neoprene in shear or spring flex isolators e Power Supply Monitor Provides protection against phase loss phase reversal phase imbalance incorrect phase sequence and low line voltage TULLE kR RRR R kak gt li E Ka e e Elapsed Time Meter Number Starts Counter Records number of compressor starts an
54. ecting the board s circuits All field wiring shall be terminated at separate clearly marked terminal strip Direct field wiring to the I O boards is not acceptable The microprocessor s memory shall be nonvolatile EEPROM type requiring no battery or capacitive backup while maintaining all data 2 Zone sensor will be available for zone temperature reset 3 The Human Interface Panel s keypad display character format shall be 40 characters x 2 lines The character font shall be 5 x 7 dot matrix plus cursor The display shall be Supertwist Liquid Crystal Display LCD with blue characters on a gray green background which provides high visibility and ease of interface The display format shall be in clear English Two or three digit coded displays are not acceptable 4 The keypad shall be equipped with 16 individual touch sensitive membrane key switches The switches shall be divided into four separate sections and be password protected from change by unauthorized personnel The six main menus shall be STATUS SET POINTS DIAGNOSTICS SETUP CONFIGURATION and SERVICE MODE Standard power connections include main three phase power and a single 115 volt 24 volt single phase connection that handles unit controls Unit accepts any of these jobsite supplied contact closures for External Auto Stop A contact closure that will start and stop the unit operation 50 Mechanical Specifications External Chill
55. ed Solution Interlock A chilled solution pump interlock in combination with a flow switch is not required for unit protection since the unit controller senses loss of flow If additional flow protection is required or if the pump contactor is used to schedule the unit this input may be used Kw Demand Limit Unit will only be allowed to operate on user selected quantity of compressors in order to maintain the building demand limit Ice Building Two ice building modes are optional and can be ordered on the unit The two modes are one time ice build mode and continuous ice build mode Miscellaneous Options Trane Communications Interface Module TCI Provides capability to communicate with aTrane ICS system Compressor Current Sensing CSM This option measures and averages amp draw on each compressor Unit Mounted Disconnect Non fused factory installed and located inside the main control box this disconnect switch features an external handle that allows the operator to disconnect unit power without having to open the control box door Isolators Spring or neoprene in shear isolators available for jobsite installation Superheat Sub Cooling In place of externally mounted refrigerant gauges a module can be ordered that will calculate and display on the Human Interface HI each circuit s superheat and subcooling temperatures Hot Gas Bypass Although unnecessary on scroll chillers for comfort a
56. ed the low or high pressure cutout to trip is determined and corrected CAUTION To prevent unit damage do not reset the control circuit until the cause of the safety lockout is identified and corrected To reset RR1 and RR2 open and reclose the unit disconnect switch Low Temperature Cutout LTC The LTC is designed to disable the unit if the leaving water temperature falls too low The LTC s remote sensing bulb is CG PRC007 EN Controls S TRANE mounted at the outlet end of the evaporator where it monitors leaving water temperature During normal unit operation if the low temperature cutout LTC senses a temperature falling to 36 F 3 0 F the LTC will open to interrupt compressor operation Manual reset is required Motor Overloads These units have internal compressor and condenser fan motor overloads These overloads protect the motors from overcurrent and overheating conditions and automatically reset as soon as they cool sufficiently UNIT OPERATIONAL CONTROLS Water Temperature Thermostat WTT System operation for 10 and 15 ton CGA units is governed by a two stage water temperature thermostat WTT The remote sensing bulb of this device is factory installed in a bulb well located on the evaporator water inlet here it monitors the temperature of the water returning to the evaporator Low Ambient Start Timer LAST When one of the two timers energizes the low pressure control is byp
57. eet Minimum clearance between adjacent units is 6 feet 2 When installing water pipes be certain to route them away from the compressor access panels Es to allow for compressor servicing or replacement 7 8 22 2mm_ DIA KNOCKOUT TYP OF 2 FOR BAYTIME ACCESSORY CONTROL WIRING ENTRY Geck VIEW A CG PRCO007 EN 39 40 Gi TRANE Dimensional Data Figure DD 2 CGA 180B Unit Dimensions TOP DISCHARGE AREA SHOULD BE UNRESTRICTED FOR 90 2290 MINIMUM UNIT SHOULD BE PLACED SO ROOF RUN OFF WATER DOES NOT POUR DIRECTLY ON UNIT CONTROL BOX ACCESS PANEL SEE DETAIL A CLEARANCE PERIMETER Ae d NOTE 1 Pea 7 16 11 1 DIAJISOLATOR MOUNTING HOLE OUTSIDE HOLE TYP OF 4 A FOOTPRINT BOLT DOWN PATTERN EVAPORATOR COMPRESSOR A PRESSURE TAPS AND EXPANSION SH Pe VALVE ACCESS 42 1070 WAS a RECOMMENDED Ve SERVICE CLEARANCE oe Notes 1 Minimum clearance around the perimeter of the unit is 3 feet Minimum clearance between adjacent units is 6 feet 2 When installing water pipes be certain to route them away from the compressor access panels to allow for compressor servicing or replacement A WE e Ap 20 a6 122 CONTROL WIRING Irun PORERHNG z 1222 DA HEAT TAPE WIRING zika Tm ID nn 34183 DA KNOCKOUT YP OF 4 PRESSURE GAGE MOUNTING
58. em KW 27 3 30 0 33 1 36 7 40 7 42 9 EER 15 5 13 6 11 8 10 1 8 6 7 9 60 Capacity 26 2 25 1 24 0 22 7 21 4 20 7 System KW 20 2 22 1 24 3 26 9 29 7 31 3 EER 14 5 12 6 10 8 9 2 7 7 7 1 30 Capacity 12 4 11 9 11 3 10 7 10 0 9 6 System KW 10 3 11 3 12 6 14 0 15 5 16 4 Table PD 26 60 Ton CGAF C60 Percent Entering Condenser Air Temperature Degrees F Load 75 85 95 105 115 120 EER 14 1 12 2 10 4 8 8 7 4 6 7 100 Capacity 52 2 49 8 47 3 44 5 41 6 40 1 System KW 44 4 49 2 54 6 60 8 67 7 71 4 EER 14 9 12 9 11 0 9 4 7 9 7 2 75 Capacity 40 5 38 7 36 7 34 6 32 4 31 2 System KW 32 7 36 1 40 0 44 4 49 3 52 0 EER 16 2 14 2 12 3 10 5 8 9 8 2 50 Capacity 28 6 27 4 26 1 24 7 23 3 22 5 System KW 21 2 23 2 25 5 28 2 31 2 32 9 EER 15 5 13 4 11 5 9 8 8 2 7 5 25 Capacity 13 8 13 2 12 5 11 8 11 1 10 7 System KW 10 6 11 8 13 0 14 5 16 1 17 0 Notes 1 Data based on 0 0001 fouling factor at sea level Interpolation between points is permissible 2 3 4 5 6 Rated in accordance with ARI Standard 550 590 98 Extrapolation beyond points is not permissible EER Energy Efficiency Ratio Btu watt hour Power inputs include compressors condenser fans and control power Ratings based on evaporator drop of 10 F 7 Data obtained assuming 400 Volt supply CG PRC007 EN 29 Gi TRANE Stand Alone Unit Interface to stand alone units is very simple only a remote auto stop or chilled water flow interlock signal for scheduling is required for
59. er should always be consulted on critical applications CG PRC007 EN Application Considerations S TRANE For maximum isolation effect water lines and electrical conduit should also be isolated Wall sleeves and rubber isolated piping hangers can be used to reduce the sound transmitted through water piping To reduce the sound transmitted through electrical conduit use flexible electrical conduit State and local codes on sound emissions should always be considered Since the environment in which a sound source is located affects sound pressure unit placement must be carefully evaluated Sound pressure and sound power levels for chillers are available on request 3 Servicing Adequate clearance for evaporator and compressor servicing should be provided Recommended minimum space envelopes for servicing are located in the dimensional data section and can serve as a guideline for providing adequate clearance The minimum space envelopes also allow for control panel door swing and routing maintenance requirements Local code requirements may take precedence 4 Unit Location a General Unobstructed flow of condenser air is essential to maintain chiller capacity and operating efficiency When determining unit placement careful consideration must be given to assure a sufficient flow of air across the condenser heat transfer surface Two detrimental conditions are possible and must be avoided warm air recirculat
60. es and Benefits Other Standard Features e Trane 3 D Scroll compressors e Advanced motor protection e 300 psi waterside evaporator e Evaporator insulation 34 inch Armaflex Il or equivalent e Evaporator heat tape thermostat controlled e Condenser coil guards e Operation down to 30 F without additional wind baffles or head pressure control e Loss of flow protection e UL and CSA approval available e Packed stock availability e Control Power Transformer e Low ambient lockout e Plain English Spanish French Human Interface display e Smart Lead Lag operation e Integrated chilled solution pump control e Selectable process or comfort control algorithm e External auto stop e Electronic low ambient damper control integrated into UCM e Flow switch e Strainer connection kit Optional Features e Controls for ice making operation Miscellaneous Options e Trane Communications Interface Module TCI e Unit Mounted Disconnect s Isolators e Superheat Sub Cooling Module e Hot Gas Bypass e Generic B A S Modules with 0 10 v analog input output 0 5 v analog input binary output e Remote Human Interface Panel RHI e Remote Set point Potentiometer e Zone Sensor Chilled Solution Reset e Copper Fin Condenser Coils e Electronic Low Ambient Damper s e Inter Processor Communication Bridge IPCB e Ice building control e Other options In addition to all of these options Trane can offer in house de
61. es of 0 F Vibration Isolation Packages Shall reduce transmission of noise and vibration to building structures equipment and adjacent spaces Packages shall be available in either neoprene in shear or spring flex types Condenser Coil Guard Metal grille with PVC coating shall be provided to alleviate coil damage Power Supply Monitor Shall provide protection against phase loss reversal phase imbalance incorrect phase sequence and low voltage Elapsed Time Meter Number Starts Counter Shall record number of compressor starts and operating hours of each compressor Integrated Comfort Systems ICS Interface Shall provide the ability to communicate with the Trane Tracer building management system viaTCM Flow Switch Required as a safety interlock to prevent operation of unit without evaporator flow Gauges Field installed gauges monitor suction and discharge pressures Factory Installed Black Epoxy Coil The black epoxy coating provides excellent protection against aluminum corrosion Hot Gas Bypass Allows unit operation below the minimum step of unloading Low Leaving Solution Temperature Applications Allows leaving solution temperatures as low as 20 F This capability is standard from the factory on both 10 and 15 ton models CG PRC007 EN GENERAL All chillers are factory run tested to confirm proper operation Units are checked on a computer based test stand at typical ambient and
62. f time If the low pressure control is still open at the end of the period the compressor is shut down and the solenoid valve is opened The loss of refrigerant flow protection is active in this seguence to additionally protect the chiller Hot Start Control A high ambient start sequence will permit only one compressor to operate when the leaving solution temperature is in the user adjustable range of 60 80 F When the leaving solution temperature falls below this high limit the second compressor will be active Low Ambient Compressor Lockout This function will lock out the compressor if the outdoor air temperature is below the low ambient compressor lock out temperature set point This set point is adjustable at the Human Interface Panel HI between 0 60 F Compressors will be locked out when outdoor air temperatures fall below that selected temperature and will be allowed to start again when the temperature rises 5 F above the set point Compressor Lead Lag Compressor lead lag is a user selectable feature through the Human Interface Panel available on all units When enabled the algorithm in the UCM will start compressors based upon the least number of starts and or run time This feature is not available with the hot gas bypass option Emergency Stop Input A binary input is provided on the Unit Control Module UCM for installation of field provided switch or contacts for immediate shutdown of all unit
63. g shall be constructed of 18 gauge zinc coated heavy gauge galvanized steel Exterior surfaces shall be cleaned phosphatized and finished with a weatherresistant baked enamel finish Units surface shall be tested to withstand a 500 consecutive hour salt spray durability test Units shall have removable panels which allow access to major components and controls Refrigeration System Unit shall have two separate and independent refrigeration circuits Each refrigeration circuit shall have integral subcooling circuits Refrigeration filter driers and sight glasses shall be provided as standard Compressors Unit shall have twoTrane direct drive hermetic scroll compressors with centrifugal oil pump and provide positive lubrication to all moving parts Motor shall be suction gas cooled and shall have a voltage utilization range of plus or minus 10 percent of nameplate voltage Crankcase heater internal temperature and current sensitive motor overloads shall be included for maximum protection External high and low pressure cutout devices shall be provided Condenser Coil Coils shall be 3 8 copper tubes mechanically bonded to configured aluminum plate fin as standard Factory 48 Mechanical Specifications pressure and leak tested to 420 psig minimum air pressure and design working pressure shall be 376 psig Metal grilles with PVC coating for coil protection are optional Evaporator The evaporator shall have i
64. ging will not cause failure In a reciprocating compressor however the liquid or dirt can cause serious damage Low Torque Variation The 3 D Scroll compressor has a very smooth compression cycle torque variations are only 30 percent of that produced by a reciprocating compressor This means that the scroll compressor imposes very little stress on the motor resulting in greater reliability Low torque variation reduces noise and vibration Suction Gas Cooled Motor Compressor motor efficiency and reliability is further optimized with the latest scroll design Cool suction gas keeps the motor cooler for longer life and better efficiency Features and Benefits Proven Design Through Testing and Research With over twenty years of development and testing Trane 3 D Scroll compressors have undergone more than 400 000 hours of laboratory testing and field operation This work combined with over 25 patents makesTrane the worldwide leader in air conditioning scroll compressor technology One of two matched scroll plates the distinguishing feature of the scroll compressor Wees 2 d E eree Bes AK te um mer Ze reg Arga Chart illustrates low torque variation of 3 D Scroll compressor vs reciprocating compressor CG PRC007 EN Certain application constraints should be considered when sizing selecting and installing Trane air cooled chillers Unit and system reliability is often dependent upon p
65. han 10 fouling factor and altitude Ethylene glycol is to be added and appropriate performance corrections are to be made for all leaving solution temperatures less than 40 F Use the following equation to calculate COP values at other than ARI conditions COP EER x 2928 Single Phase CGA120B1 model should be re rated at all operating points using the following factors 1 08 x KW 0 92 x EER CG PRC007 EN 21 Gi TRANE Performance Data 60 HZ Table PD 3 20Ton CGAF C20 Entering Condenser Air Temperature Degree F 75 0 85 0 95 0 105 0 115 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 20 28 12 0 15 6 9 2 11 4 17 3 8 0 10 8 19 2 6 8 10 1 21 3 5 7 9 4 23 8 48 25 24 13 4 16 0 10 0 12 7 17 7 8 6 12 1 19 6 7 4 113 21 8 6 2 10 6 24 3 5 2 30 19 14 8 16 4 10 8 14 1 18 1 9 4 13 4 20 1 8 0 12 6 22 3 6 8 11 8 24 9 5 7 35 14 16 4 16 9 11 6 15 6 18 6 10 1 14 8 20 6 8 6 14 0 22 9 7 3 13 1 25 4 6 2 40 0 18 1 17 4 12 5 17 3 19 2 10 9 16 4 21 2 9 3 15 5 23 5 7 9 14 5 26 1 6 7 42 0 18 8 17 6 12 8 18 0 19 4 11 1 17 0 21 4 9 6 16 1 23 7 8 1 15 1 26 3 6 9 44 0 19 5 17 8 13 2 18 6 19 6 11 4 17 7 21 6 9 8 16 7 24 0 8 3 15 6 26 5 7 1 45 0 19 8 17 9 13 3 18 9 19 7 11 5 18 0 21 7 9 9 17 0 24 1 8 5 15 9 26 7 7 1 46 0 20 1 18 0 13 5 19 2 19 8 11 7 18 3 21 8 10 0 17 3 24 2 8 6 16 2 26 8 7 2 48 0 20 8 18
66. he General Data section of this catalog This accessory will enable units to operate down to much lower temperature extremes see General Data section of this catalog Head pressure control for CGA units is regulated by means of a field installed head pressure accessory which varies condenser fan speed in relation to discharge pressure When discharge pressure is 270 psig or higher the condenser fan runs at full speed At pressures between 270 psig and 180 psig the fan speed is adjusted increased or decreased in direct relation to the pressure with minimum fan speed 10 percent of rated motor rpm occurring when the pressure reaches 180 psig At pressures below 180 psig the fan will not run When discharge pressure rises to 180 psig the fan will start and run at the reduced speed Fan speed will continue to increase as the pressure increases until full soeed is reached at 270 psig CG PRC007 EN Customized Control With IntelliPak controls Trane can customize controls around the chiller application and the specific components used in the CGAF For instance the compressor protection system is specifically designed for the Trane 3 D Scroll compressor A leaving chilled solution temperature control algorithm maintains accurate temperature control for both comfort and process applications minimizing the drift from set point The IntelliPak controls incorporate improved chiller start up load limiting
67. he required chilled waterflow rate we use the formula GPM Tons x 24 AT From the 60 ton unit table in the Performance Data section of this catalog a CGAF C60 at the given conditions will produce 573 tons with a system power input of 70 2 kw and a unit EER of 9 8 GPM 56 8 Tons x 24 137 5 10 F 2 To determine the evaporator water pressure drop we use the flow rate gpm and the evaporator water pressure drop curves found in the Performance Adjustment Factors section of this catalog Entering the curve at 1375 gpm the pressure drop for a nominal 60 ton evaporator is 16 5 feet 3 For selection of chilled brine units or applications where the altitude is significantly greater than sea level or the temperature drop is different than 10 F the performance adjustment factors should be applied at this point For example Corrected Capacity Capacity unadjusted x Appropriate Adjustment Factor Corrected Flow Rate Flow Rate unadjusted x Appropriate Adjustment Factor Corrected KW Input KW Input unadjusted x Appropriate Adjustment Factor 4 Verify that the selection is within design guidelines The final unit selection is Quantity 1 CGAF C60 Cooling Capacity 573Tons Entering Leaving Chilled Water Temperatures 55 45 F Chilled Waterflow Rate GPM 1375 Evaporator Water Pressure Drop 16 5 ft System Power Input 70 2 KW Unit EER 9 8 MINIMUM LEAVING CHILLED WATER
68. ilure All of the monitoring and diagnostic information can be easily accessed at the Human Interface display standard on every unit 2 Solution Cool Comfort Cooling E Menu keys Will Select The Desired Menu r Menus Next and previous Will status Setpoints Diagnostics EE Scroll Through Displays tat And Will setup Service ode Custom Configuration Change Values Enter Will Enter Value Change A Cancel Will Cancel Value Change Previous Custom Will View Custom Status Displays Next Stop Will Shut OFF Unit Auto Will Start Unit Operation 33 Gi TRANE Standard Control Features Human Interface HI Panel The Human Interface HI Panel provides a 2 line X 40 character clear English language liquid crystal display and a 16 button keypad for monitoring setting editing and controlling The Human Interface Panel is mounted in the unit s main control panel and is accessible through a hatch built into the unit s control panel door The optional remote mounted version of the Human Interface panel has all the functions of the unit mounted HI with the exception of the Service Mode To use a Remote Human Interface RHI the unit must be equipped with an optional InterProcessor Communications Bridge IPCB The RHI can be located up to 5 000 feet from th
69. ion and coil starvation Warm air recirculation occurs when discharge air from the condenser fans is recycled back to the condenser coil inlet Coil starvation occurs when free airflow to the condenser is restricted Condenser coils and fan discharge must be kept free of snow or other obstructions to permit adequate airflow for satisfactory unit operation Debris trash supplies etc should not be allowed to accumulate in the vicinity of the air cooled chiller Supply air movement may draw debris into the condenser coil blocking spaces between coil fins and causing coil starvation Both warm air recirculation and coil starvation cause reductions in unit efficiency and capacity because of the higher head pressures associated with them In addition in more severe cases nuisance unit shutdowns will result from excessive head pressures Estimates of the degree of efficiency and capacity reduction in such situations can be determined Consult your localTrane sales engineer Cross winds those perpendicular to the condenser tend to aid efficient operation in warmer ambient conditions however they tend to be detrimental to operation in lower ambients or when hot gas bypass is used due to the accompanying loss of adequate head pressure As a result it is advisable to protect aircooled chillers from continuous direct winds exceeding 10 miles per hour in low ambient conditions Low Ambient Operation 20 60Ton models Hu
70. ire more capacity or standby capability than a single machine can provide For those installations two units with their evaporators in a parallel configuration are typical The only effective way of controlling two units in parallel is with a single temperature controller For further information please contactTrane Applications CG PRC007 EN S TRANE Application Considerations 10 15 Ton Figure AC 1 Recommended Piping Components For Typical Evaporator Installation Wal ved Veni a EMEA Yemi Oe a V _ d vn T gan _ SR X N I E Vibration Eliminator Union y Thermometer d j D Wiler lee Ge 7 Gate Valve S i m Y N cer mete a a l al j b Vibration Thermometer Balancing KI Eln Rusi r Valve Note Provide shutoff valves in the evaporator inlet Union and outlet to facilitate water temperature sensor removal See unit dimensional drawings for inlet et locations 20 60 Ton Grooved Threaded Nipple Fact Provided Water Strainer Factory 1 Provided Sy 4 Flow Swite ge di Factory Nipple i Provided Factory Provided Vibration Eliminators Line Shutoff Outlet Valves Balancing Valve Return Line qaen See Note 1 Notes 1 Shutoff valves are required for evaporator servicing 2 Evaporator is shown for illustration purposes only Water Inlet and Outlet locations depend on unit size CG PRC007 EN 13
71. l IntelliPak air cooled chillers come standard with Anti recycle Fixed Off Timers This function prevents rapid cycling of the compressors due to low load conditions or short water loops 3 Pumpdown CGAF air cooled chillers will pumpdown if function is enabled when a refrigerant circuit is turned off All of the refrigerant is pumped into the condenser A solenoid valve provides a positive shut off between the condenser and the evaporator allowing little or no refrigerant migration to the evaporator during off periods 4 Hot Gas Bypass Hot gas bypass provides more stable leaving solution temperature control at light load conditions The compressor runs continuously for a user defined run time Minimum starting and operating ambients with hot gas bypass are shown in the General Data section of this catalog The hot gas bypass reduces the unit head pressure thereby increasing the minimum operating ambient 5 Loss of Flow Protection Loss of flow may result in evaporator freeze up Full chilled solution flow must be maintained through the evaporator while compressors are operating A flow switch used as a safety interlock is always recommended for CGA units The CGAF aircooled chiller has a system which senses a loss of flow condition and shuts the unit down A flow switch used as a safety interlock is required for CGAF units A set of contacts is available for externally starting and stopping the pump W
72. le GBAS e 0 5 volt Analog Input Binary Output e Generic BA S Module GBAS e 0 10 volt Analog Input Output e Remote Human Interface e Remote Set point Potentiometer e Zone Sensor Chilled Solution Reset e Inter Processor Communication Bridge IPCB Unit size must be specified when ordering this item 15 Gi TRANE 16 General Data Table GD 1 General Data 10 60 Ton Units 10Ton 15Ton 20 Ton 25Ton 30Ton 40Ton 50Ton 60Ton Model Number CGA120 CGA180 CGAF C20 CGAF C25 CGAF C30 CGAF C40 CGAF C50 CGAF C60 Compressor Data Model Scroll Scroll Scroll Scroll Scroll Scroll Scroll Scroll Quantity 2 2 2 1 1 2 4 2 2 4 Nominal Tons per Compressor 5 7 5 10 10 15 15 10 10 15 15 Evaporator Nominal Size Tons 10 15 20 25 30 40 50 60 Water Storage Capacity Gallons 1 4 1 5 2 2 2 7 3 2 4 1 5 0 7 4 Min Flow Rate GPM 12 0 18 0 24 30 36 48 60 72 Max Flow Rate GPM 36 0 54 0 72 90 108 144 180 216 Max EWT At Start Up Deg F 100 100 108 108 108 108 108 108 Condenser Nominal Size Tons 10 15 20 25 30 40 50 60 Number of Coils 1 2 1 2 2 2 2 2 Coil Size ea Inches 28 x 108 28 x 83 61x71 45x 71 35 x 71 56 x 70 56 x 70 57 x 96 57 x 96 Number of Rows 2 2 3 3 3 3 3 4 Subcooler Size ea Inches 4 x 108 4 x 83 10 x 71 14 x 71 9 x 70 9 x 70 9 x 96 9 x 96 Condenser Fans Ouantity 1 2 2 3 4 4 6 6 Diameter Inches 28 26 26 26 26 26 26 26 CFM Total 8 120 11 600 15 000 21 650 29 200 29 200 42 300 40
73. lers Use of either will lead to a shortened life Trane encourages the employment of a reputable water treatment specialist familiar with local water conditions to assist in the establishment of a proper water treatment program The capacities given in the Performance Data section of this catalog are based on water with a fouling factor of 0 0001 in accordance with ARI 550 590 98 For capacities at other fouling factors see Performance Adjustment Factors section of this catalog EFFECT OF ALTITUDE ON CAPACITY Chiller capacities given in the Performance Data section are based upon application at sea level At elevations substantially above sea level the decreased air density will decrease condenser capacity and therefore unit capacity and efficiency The adjustment factors in the Performance Adjustment Factors section of this catalog can be applied directly to the performance data to determine the unit s adjusted performance CG PRC007 EN AMBIENT LIMITATIONS Trane chillers are designed for year round applications in ambients from 0 F to 115 F For operation below 0 F or above 115 F contact the local Trane sales office If hot gas bypass is used operating ambients vary depending upon unit size see the General Data section of this catalog 1 Low Ambient Operation Start up and operation of Trane chillers at lower ambient temperatures require that sufficient head pressure be mai
74. man Interface Recommendations When the temperature outside is subzero who wants to be out there monitoring or troubleshooting diagnostics Because we understand a service technician s reluctance to do this we recommend using a Remote Human Interface RHI panel The service technician can troubleshoot and diagnose in the comfort of a mechanical room Gi TRANE b Provide Vertical Clearance Vertical condenser air discharge must be unobstructed While it is difficult to predict the degree of warm air recirculation a unit installed as shown below would have its capacity and efficiency significantly reduced possibly to the degree of nuisance high head pressure trip outs Performance data is based on free air discharge c Provide Lateral Clearance The condenser coil inlet must not be obstructed A unit installed closer than the minimum recommended distance to a wall or other vertical riser may experience a combination of coil starvation and warm air recirculation resulting in unit capacity and efficiency reductions and possible excessive head pressures The recommended lateral clearances are depicted in the dimensional data section These are estimates and should be reviewed with the local Trane sales engineer at the jobsite 10 Application Considerations d Provid
75. ndependent dual refrigerant circuits The evaporator shall be stainless steel braze plate construction with a waterside working pressure of 350 psig and a refrigerant side working pressure of 300 psig One water pass with a drain connection Condenser Fan and Motor s Direct drive statically and dynamically balanced propeller fan s with aluminum blades and electro coated steel hubs shall be used in draw thru vertical discharge position Either permanently lubricated totally enclosed or open construction motors shall be provided and shall have built in current and thermal overload protection Motor s shall be ball bearing type Controls The chiller shall be completely factory wired with necessary controls and contactor pressure lugs or terminal block for power wiring Control wiring shall be 24 volt control circuit which includes fusing and control transformer Time delay timers to prevent compressors in dual compressor units from simultaneous start up and anti recycle timers shall be standard Low Ambient Operation Standard units shall start and operate to approximately 50 F Optional head pressure control accessory permits operation at lower temperature extremes see General Data section of this catalog OPTIONS Field Installed Low Ambient Head Pressure Control Shall modulate the rpm of unit outdoor fan motor in response to unit head pressure Accessory provides unit cooling operation to outdoor temperatur
76. ntained for proper expansion valve operation Minimum operating ambient temperatures for standard unit selections and units with hot gas bypass are shown in the General Data section of this catalog Minimum ambient temperatures are based on still conditions winds not exceeding five mph Greater wind velocities will result in a drop in head pressure therefore increasing the minimum starting and operating ambient temperatures Optional low ambient units use a electronic low ambient damper control 20 60 tons or a variable speed fan motor 10 15 tons arrangement to control condenser capacity by modulating condenser fans in response to refrigerant pressure 2 High Ambient Operation Maximum cataloged ambient temperature operation of a standard Trane chiller is 115 F Operation at design ambients above 115 F can result in excessive head pressures For operation above 115 F contact your local Trane sales office CG PRC007 EN Application Considerations S TRANE CONTROLS 1 Temperature Controller In order to provide stable system operation and to prevent excessive compressor cycling the temperature control sensor in all 20 60 ton chillers is located in the supply outlet solution The temperature sensor in all 10 and 15 ton chillers is located in the return inlet solution This sensor cannot be relocated Doing so would result in improper unit operation 2 Anti recycle Timer Fixed Off Timer Al
77. onnection to a Remote Human Interface RHI Panel Each chiller that is tied into a RHI must have a IPCB installed Other Options In addition to all of these options Trane can offer in house design for many applications including special coil coating CG PRC007 EN TRANE Trane A business of American Standard Companies www trane com For more information contact your local district office or e mail us at comfort trane com The standard ARI rating condition full load and IPLV are ARI certified All other ratings including the following are outside the scope of the certification program and are excluded e Glycol e 50Hz Literature Order Number CG PRC007 EN File Number PL RF CG PRC007 EN 0404 Supersedes CG PRC007 EN 0503 Stocking Location WebbMason Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice
78. ons TOP DISCHARGE AREA SHOULD BE VERTICALLY UNRESTRICTED FOR 100 2540 MINIMUM UNIT 37 96 964 SHOULD BE PLACED SO ROOF RUN 4 OFF WATER DOES NOT POUR 984 37 96 51 18 1300 VIE DIRECTLY ON UNIT CH RAS CONTROL ACCESS 1 3 4 44 5 DIA HOLE 3 HH HIGH VOLTAGE Te POWER ENTRY AN 7 8 22 2 DIA HOLE LOW VOLTAGE CONTROL WIRING POWER ENTRY 2 3 4 70 DIA ENTRY WITH Se 1 1 2 38 1 NPTF WATER 985 L INLET FITTING ___ _ 4 71 120 COMPRESSOR VALVE AND PRESSURE TAP ACCESS 2 3 4 70 DIA ENTRY WITH 1 1 2 38 1 NPTF WATER OUTLET FITTING 2 0 50 8 1 1 4 31 8 DIA LIFTING HOLE TYP OF 4 S 29 7 755 7 8 22 2 DIA HOLE va SC ID 586 26 6 675 ELECTRIC HEAT TAPE Z 30 21768 POWER ENTRY e Iech 2 Lu s CLEARANCE 2 21 56 1 PERIMETER 7 1 1 2 38 1 DIA NOTE 1 PRESSURE GAUGE 3 ENTRY HOLE Ste FOOTPRINT BOLT DOWN PATTERN zi 25 68 652 a N S 30 00 762 a tee LO a SA 3 84 97 5 z TYP 42 00 1070 RECOMMENDED SERVICE CLEARANCE ei 7 16 11 1 DIA ISOLATOR MOUNTING HOLES INSIDE HOLES 4 PLACES 2 750 8mm DIA KNOCKOUT HEAD PRESSURE CONTROL ACCESSORY WIRING ENTRY 3 3 4 95 3nn DIA KNOCKOUT TYP OF 4 TO MOUNT PRESSURE GAGE KIT ACCESSORY Notes 1 Minimum clearance around the perimeter of the unit is 3 f
79. ons Number Fin Type 1 2 3 4 5 6 Weight Ibs Weight Ibs Aluminum 595 470 470 335 1870 1875 20 CGAFC20 Copper 690 415 490 430 sa 2085 2095 Aluminum 700 470 490 425 2085 2085 9 CHARCAS Copper 760 540 580 490 2370 2370 Aluminum 865 430 725 340 430 270 3060 3065 30 CGAFC30 Copper 875 525 830 385 555 280 3450 3455 Aluminum 560 580 580 595 480 495 3290 3290 40 CGAFC40 Copper 570 755 605 540 640 570 3680 3675 Aluminum 685 715 720 750 505 525 3900 3900 50 CGAFC50 Copper 840 870 660 680 680 705 4435 4435 Aluminum 885 820 855 985 620 720 4885 4865 60 CGAFC60 Copper 935 1220 875 920 1010 860 5820 5800 Notes 1 Operating weights include refrigerant and water but do not include weight of accessories 2 Shipping weights include refrigerant and crating 3 Refer to dimensional data for location of isolator loading points CG PRC007 EN 20 25 Tons 30 60 Tons O2 40 O2 40 60 CONTROL CONTROL eae PANEL ae PANEL ol 30 ol 30 50 47 Gi TRANE General Units shall be assembled on heavy gauge steel mounting lifting rails and shall be weatherproofed Units shall include hermetic scroll compressors plate fin condenser coil fan s and motor s controls and complete factory installed operating charge of oil and R 22 refrigerant Operating range shall be between 115 F and 0 F Units shall be either UL or CSA certified and rated in accordance with ARI Standard 550 590 98 Casing Unit casin
80. ore the loop volume the greater the system stability and controllability EXAMPLE CGAFC50 with 100 gpm Minimum Loop Volume GPM x 3 Minute LoopTime Minimum Loop Volume 100 x 3 300 Gallon Minimum Loop Volume If a chiller is attached to an on off load such as a process load it may be difficult for the controller to respond quickly enough to the very rapid change in return solution temperature This condition may result in freezestat or low temperature trips In this case it may be necessary to add a mixing tank in the return line MULTIPLE UNIT OPERATION Whenever two or more units are used on one chilled water loop Trane recommends that their operation be controlled from a single control device such as a Trane Tracer system The Stand alone alternative is the DDC Chiller Sequencer 1 Series Operation Some systems require large chilled water temperature drops 16 to 24 F For those installations two units with their evaporators in series are usually required Control of the units should be from a common temperature sensor to prevent the separate unit controls from fighting one another and continually hunting It is possible to control water temperature from the two individual unit controls but a common temperature controller provides a positive method for preventing control overlap more closely matching system load and simplifying compressor lead lag capability 2 Parallel Operation Some systems requ
81. pplications due to scroll cycling capabilities hot gas bypass is still available for applications requiring close temperature control at low load conditions Generic Building Automation System GBAS Two modules are available to integrate building automation systems other than Trane The modules are designed for either 0 5 vdc or 0 10 vdc signals Remote Human Interface RHI Panel The Remote Human Interface Panel can perform all the same functions as unit mounted Human Interface Panel with the exception of the Service Mode The field installed RHI can monitor and control up to 4 chillers The RHI is suitable for mounting inside a building up to 5 000 feet from the unit The RHI is wired to the IPCB mounted in each chiller with a wire pair communication wiring and 24V control wiring Remote Set point Potentiometer Field installed option that allows remote adjustment of the leaving solution set point Zone Sensor Chilled Solution Reset Field installed zone sensor that allows the leaving chilled solution temperature to be reset by the zone temperature Copper Fin Condenser Coils Copper fins mechanically bonded to seamless copper tubes are available for use in corrosive atmospheres Electronic Low Ambient Damper s Allows the unit to operate down to 0 F outdoor ambient conditions Inter Processor Communication Bridge IPCB This module provides an amplified and filtered version of the IPC link for c
82. rane can supply the entire package ICS provides comfort with one word Trane Packed Stock Increases Project Flexibility Trane 10 to 60 ton air cooled chillers are available through the most flexible packed stock program in the industry Trane knows you want your units on the jobsite on time when you need them To help meet this demand Trane keeps a multitude of unit sizes and voltages in packed stock Many of these include optional features such as isolators low ambient head pressure controls and refrigerant gauge piping You no longer have to settle for a scaled down basic unit to meet your job schedule In many cases units can be shipped directly to the jobsite from packed stock CG PRC007 EN The 10 and 15 ton air cooled Cold Generator chillers with Trane direct drive hermetic scroll compressors has outstanding standard features and additional benefits that make selection installation and servicing easy Flexibility Footprint Central to the design of any project is the operating envelope of the aircooled packaged chiller With this in mind Trane builds the chillers to make the most efficient use of the available installation space The Trane CGA model chillers are extremely compact They have the lightest weight the smallest footprint and the lowest silhouette of any chiller in the industry Less Weight These lightweight models afford less stress on building supports and greater handling
83. rate under safe conditions Design Delta Temperature set point the design deltaT drop within the evaporator is adjustable from 4 20 F in one degree increments In addition the control response set point can affect the speed of the UCM s response to changing cooling requirements This value can be set through the HI to allow flexibility in maintaining precise control conditions Chiller Freeze Protection The microprocessor will prevent the evaporator fluid from freezing by reducing chiller capacity ultimately shutting down all compressors and sending a manually re settable diagnostic The inputs for freeze protection are the low leaving solution temperature cutout and the leaving solution temperature Evaporator Solution Flow Interlock The IntelliPak control requires an external evaporator flow switch interlock An external field installed flow switch must be wired into the unit terminal strip When an open condition is detected for six 6 seconds or longer the compressors will shut down and after five 5 minutes an automatic resettable diagnostic alarm will be sent CG PRC007 EN Head Pressure Control Condenser head pressure control is provided in the UCM by staging condenser fans on or off to maintain the saturated condensing temperature This function will allow cooling operation down to 30 F as standard Minimum on and off timing is built into the algorithm to prevent rapid cycling Pump down
84. rature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 40 0 19 3 19 8 11 7 18 3 21 9 10 0 17 3 24 3 8 5 16 2 27 0 7 2 15 6 28 5 66 42 0 20 0 20 0 12 0 19 0 22 1 10 3 17 9 24 5 8 8 16 8 27 3 74 16 2 28 7 68 44 0 20 7 20 1 12 3 19 7 22 3 10 6 18 6 24 8 9 0 17 4 27 5 7 6 16 8 29 0 7 0 45 0 21 1 20 2 12 5 20 1 22 4 10 7 18 9 24 9 9 1 17 7 27 6 7 7 17 1 29 1 7 1 46 0 215 20 3 12 7 20 4 22 5 10 9 19 3 25 0 9 3 18 1 27 7 7 8 17 4 29 2 7 2 48 0 22 2 20 5 13 0 21 1 22 7 11 2 20 0 25 2 9 5 18 7 28 0 8 0 18 1 294 74 50 0 23 0 20 7 13 3 21 9 22 9 11 4 20 7 25 4 9 8 19 4 28 2 8 3 18 7 297 7 6 Table PD 14 30Ton CGAF C30 Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 40 0 23 4 23 9 11 7 22 2 26 5 10 1 21 0 29 5 8 6 19 7 32 8 7 2 19 0 34 6 66 42 0 24 2 24 1 12 1 23 1 26 7 10 4 21 8 29 7 8 8 20 5 33 0 74 19 7 348 68 44 0 25 1 24 3 12 4 23 9 27 0 10 6 22 6 29 9 EN 21 2 33 3 7 7 20 5 35 1 7 0 45 0 25 6 24 4 12 6 24 3 27 1 10 8 23 0 30 1 9 2 21 6 33 4 7 8 20 9 35 2 7 1 46 0 26 0 24 5 12 7 24 8 27 2 10 9 23 4 30 2 9 3 22 0 33 5 7 9 21 3 35 3 7 2 48 0 26 9 24 7 13 1 25 7 27 4 11 2 24 3 30 4 9 6
85. rical Data Electrical Data 60 HZ S TRANE UnitWiring Motor Data Model Nameplate Voltage Max Fuse Rec Dual Compressor Ea Fans Ea Tons Number Voltage Range MCA Size Element Oty RLA LRA Qty KW FLA CGA120B1 208 230 60 1 187 254 74 100 2 30 169 1 0 95 6 CGA120B3 208 230 60 3 187 254 38 4 50 2 14 4 128 1 0 95 6 10 CGA120B4 460 60 3 414 506 24 1 30 2 9 5 63 1 0 95 2 7 CGA120BW 575 60 3 518 632 18 4 25 2 73 49 1 0 95 2 CGA180B3 208 230 60 3 187 254 68 1 90 2 275 208 2 1 03 3 1 15 CGA180B4 460 60 3 414 506 32 7 45 2 13 1 99 5 2 1 03 1 6 CGA180BW 575 60 3 518 632 25 1 30 2 10 1 68 2 1 03 1 2 200 60 3 180 220 98 125 110 2 39 4 269 2 0 9 4 1 n coco S ME A B 3 ME ME ME 575 60 3 520 635 33 45 40 2 13 2 94 2 0 9 1 4 200 60 3 180 220 124 175 150 2 39 3 56 9 269 409 3 0 9 4 1 230 60 3 208 254 124 175 150 2 39 3 56 9 251 376 3 0 9 4 1 23 SES 460 60 3 416 508 56 80 70 2 171 25 4 117178 3 0 9 18 575 60 3 520 635 44 60 50 2 13 8 20 2 94 143 3 0 9 1 4 230603 208254 146 200 O 18 OO 2 s69 3e 4 os 30 Dee 460 60 3 416 508 65 80 80 2 25 1 178 4 0 9 18 575 60 3 520 635 51 70 60 2 19 9 143 4 0 9 1 4 200 60 3 180 220 187 225 200 4 39 4 269 4 0 9 4 1 ao CGAFCAO ez A SW Di woo mo 4 o fs 575 60 3 520 635 62 70 70 4 13 2 94 4 0 9 1 4 200 60 3 180 220 224 250 250 4 35 5 55 5 269 409 6 0 9 4 1 50 CGAF C50 230 60 3 208 254 223 250 250 4 35 5 55 5 251 376 6 0 9 4 1 460 60 3 416 508 98 110 1
86. roper and complete compliance with these considerations Where the application varies from the guidelines presented it should be reviewed with your localTrane sales engineer Note The terms water and solution are used interchangeably in the following paragraphs UNIT SIZING Unit capacities are listed in the Performance Data section Intentionally oversizing a unit to assure adequate capacity is not recommended Erratic system operation and excessive compressor cycling are often a direct result of an oversized chiller In addition an oversized unit is usually more expensive to purchase install and operate If oversizing is desired consider using two units UNIT PLACEMENT 1 Setting The Unit A base or foundation is not required if the selected unit location is level and strong enough to support the unit s operating weight see Weights section of this catalog For a detailed discussion of base and foundation construction refer to the Trane Reciprocating Refrigeration Manual Manuals are available through the local Trane office 2 Isolation and Sound Emission The most effective form of isolation is to locate the unit away from any sound sensitive area Structurally transmitted sound can be reduced by using spring isolators Spring isolators are generally effective in reducing vibratory noise generated by compressors and therefore are recommended for sound sensitive installations An acoustical engine
87. s IPLV at ARI Conditions Tons Model Number IPLV COP 10 CGA120B 12 3 2 9 15 CGA180B 12 9 2 8 20 CGAF C20 14 8 2 8 25 CGAF C25 14 6 2 8 30 CGAF C30 13 9 2 8 40 CGAF C40 14 9 2 8 50 CGAF C50 14 5 2 8 60 CGAF C60 15 0 2 8 Notes 1 Integrated Part Load Values are EERs in Btu watt hour 2 CGA120B1 Single Phase IPLV 11 4 COP 2 7 24 CG PRC007 EN Table PD 10 10Ton CGA 120 Performance Data 50 HZ S TRANE Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol Tons KW EER Tons KW EER Tons KW EER Tons KW EER Tons KW EER 40 0 7 2 7 6 11 4 6 8 8 4 9 7 6 4 9 4 8 2 6 0 10 5 6 9 5 8 11 1 6 3 42 0 7 4 7 6 117 7 1 8 5 10 0 6 7 9 5 8 4 6 3 10 6 7 1 6 1 112 6 5 44 0 7 7 7 7 12 0 7 3 8 6 10 2 6 9 9 6 8 7 6 5 10 7 7 3 6 3 113 6 7 45 0 7 9 7 8 12 1 75 8 7 10 3 7 1 9 7 8 8 6 6 10 8 74 6 4 114 68 46 0 8 0 7 9 12 2 7 6 8 7 10 5 7 2 9 7 8 9 6 8 10 8 7 5 6 6 114 69 48 0 8 3 8 0 12 5 7 9 8 8 10 7 7 5 9 8 9 1 7 0 10 9 7 7 6 8 11 5 71 50 0 8 6 8 1 12 8 8 2 9 0 11 0 7 7 10 0 9 3 7 3 11 1 7 9 ZA 117 73 Table PD 11 15 Ton CGA 180 Entering Condenser Air Temperature Degree F 85 0 95 0 105 0 115 0 120 0 LWT Percent Capacity System Capacity System Capacity System Capacity System Capacity System Deg F Glycol
88. s the entire package Tracer control points for IntelliPak Chillers e Chilled solution set point e Default chilled solution set point e Ice set point e Default ice set point e Chiller enable point e Failure mode e Ice making enable point e KW limit enable point e Demand limiting cooling stages e Default number of compressors e Design delta temperature e Control response set point e Reset option Gi TRANE Trane 3 D Scroll Compressor Simple Design with 70 Fewer Parts Fewer parts than an equal capacity reciprocating compressor means significant reliability and efficiency benefits The single orbiting scroll eliminates the need for pistons connecting rods wrist pins and valves Fewer parts lead to increased reliability Fewer moving parts less rotating mass and less internal friction means greater efficiency than reciprocating compressors TheTrane 3 D Scroll provides important reliability and efficiency benefits The 3 D Scroll allows the orbiting scrolls to touch in all three dimensions forming a completely enclosed compression chamber which leads to increased efficiency In addition the orbiting scrolls only touch with enough force to create a seal there is no wear between the scroll plates The fixed and orbiting scrolls are made of high strength cast iron which results in less thermal distortion less leakage and higher efficiencies The most outstanding feature of the 3 D Scroll compressor is that slug
89. short cycle timer will lock out compressor operation for three minutes Delay Between Compressors DBC The delay between compressors prevents both compressors from starting at the same time by delaying compressor number two for 30 seconds Definition of Abbreviations ASCT Anti Short CycleTimer CC Compressor Contactor CWFIR Chilled Water Flow Interlock Relay CWPS Chilled Water Pump Starter DBC Time Delay Between Compressors HGBT Hot Gas BypassTimer HPCO High Pressure Cutout LAST Low Ambient Start Timer LPCO Low Pressure Cutout LTC Low Temperature Cutout ODF Outdoor Fan RR Reset Relay SPDT Single Pole Double Throw Water Temperature Thermostat 31 Gi TRANE 32 Controls SEQUENCE OF UNIT OPERATION Refer to the unit wiring schematic pasted to the inside of the control panel cover when reviewing the control sequence described below Refer to the legend on the previous page for an explanation of the abbreviations used in this sequence 10 Ton Operation With fused disconnect switch closed power is supplied to the crankcase heaters and the 24 volt control circuit Starting the chilled water pump closes the CWPS auxiliary contacts and completes the flow switch When the water temperature rises above the WTT s set point its first stage switch closes allowing power to pass through CWPS auxiliary contacts the flow switch the LTC
90. sign for many applications including special coil coating CG PRC007 EN Enhanced Controls IntelliPak Chiller Unit Control Module UCM Microprocessor Control The brain of the 20 to 60 ton aircooled chiller is its Unit Control Module UCM The UCM is an innovative modular microprocessor control design which coordinates the actions of the chiller in an efficient manner providing stand alone operation of the unit Access to the unit controls is via a Human Interface HI Panel a standard component of the IntelliPak chiller This panel provides a high degree of control Superior monitoring capability and unmatched diagnostic information is provided through a 2 line 40 character per line English language display There are no diagnostic codes requiring a translation key for interpretation All system status information and control adjustments can be made from the onboard Human Interface Panel Features and Benefits S TRANE Remote Human Interface RHI The optional Remote Human Interface RHI performs the same functions as the Human Interface with the exception of the service mode The RHI can be used with up to 4 air cooled chillers from a single panel The Integrated Comfort System The Industry s Most Advanced Comfort System The UCM allows the 20 to 60 ton IntelliPak chiller to be part of the factory installed Integrated Comfort System ICS ICS joins the Trane Tracer building
91. ssors and has no moving parts Each refrigerant circuit includes a liquid line solenoid valve filter drier liquid line sight glass with moisture indicator thermostatic expansion valve and service valves liquid and discharge Capacity modulation is achieved by turning compressors on and off Twenty to 30 ton sizes have two capacity stages Forty 50 and 60 ton sizes have four capacity stages The standard leaving chilled water temperature range is 40 F to 50 F Options are available for leaving chilled solution temperature ranges from 20 to 29 F 30 to 39 F and 51 to 65 F Unit Controls Compressor contactors and unit controls are in a weather tight enclosure with knockouts for jobsite installed wiring The unit controller shall be suitable to control leaving chilled solution temperature for comfort or process applications automatic compressor sequencing condenser fan sequencing load limiting and anti recycle functions Failure protections include loss of chilled solution flow chiller freeze protection chilled solution flow interlock head pressure control pump down control low ambient start hot start control and low ambient lockout Leaving and entering solution temperature sensor is factory installed Controls include auto stop switch a leaving water temperature set point adjustment a DeltaT adjustment viewable through the unit Human Interface digital display Unit Controller DDC microprocessor controls
92. tem Interface Schematic ji Tracer 19 IBM PC with Building Management Network CG PRC007 EN ELECTRICAL CONTROL SYSTEM The controls used on CGA 10 and 15 ton units are classified either as safety controls or operational controls Brief descriptions of the specific safety and operating controls used in the CGA control scheme are provided in the following paragraphs Refer to the following control descriptions for control settings UNIT SAFETY CONTROLS Low Pressure Cutout LPC01 LPCO2 Mounted below the unit control box are two low pressure cutouts that open and stop compressor operation if the operating pressure drops below 38 5 1 psig The cutout automatically resets when the pressure reaches 44 5 2 psig The LPCO is a SPDT device If it opens at low ambient start up it will energize ODF relay stopping the outdoor fan s while the compressor remains energized through the LAST Low Ambient Start Timer High Pressure Cutout HPC01 HPC02 These units have high pressure cutouts that open and stop compressor operation if the discharge pressure reaches 400 10 psig The cutout automatically resets when pressure drops to 250 15 psig Reset Relays RRS RR2 If the unit is shut down by the low pressure cutout or high pressure cutout the reset relay locks out the compressor contactor CCS CC2 This prevents the system from recycling until the condition that caus
93. ult in inadequate refrigerant superheat Sufficient superheat is always a primary concern in any direct expansion refrigeration system and is especially important in a package chiller where the evaporator is closely coupled to the compressor When temperature drops are less than 6 F an evaporator runaround loop may be required 12 Application Considerations TYPICAL WATER PIPING All building water piping must be flushed prior to making final connections to the chiller To reduce heat loss and prevent condensation insulation should be applied Expansion tanks are also usually required so that chilled water volume changes can be accommodated A typical piping arrangement is shown on the following page WATERVOLUME IN THE LOOP MINIMUM LOOPTIME The volume of water in the loop is critical to the stability of system operation The minimum required water volume is dependant on the chiller controller and system GPM Water volumes less than the minimum required for the system can cause nuisance problems including low pressure trips and freezestat trips The cause of these trips is Short Water Loops The minimum required water volume as a function of loop time and GPM is as follows CGAF Minimum Loop Volume GPM x 3 Minute LoopTime CGA Minimum Loop Volume GPM X 5 Minute LoopTime If the loop piping does not contain enough volume then a tank should be added so that the equations hold true Generally the m
94. wo Generic Building Automation System Modules GBAS are available as an option to provide broad control capabilities for building automation systems other than the Trane s Tracer system The 0 5 vdc input GBAS Module contains 4 analog inputs one binary input for demand limit and 5 binary outputs The 4 analog inputs can accept a 0 5 vdc or a three wire potentiometer signal and be assigned to 1 Leaving Solution Set point 2 Ice BuildTerminate Set point 3 Hot Start Load Limit Set point 4 Maximum Capacity Level Set point The 5 binary outputs can be assigned 1 Active Unit Diagnostics 2 Compressor running status 3 Maximum Capacity all compressors running 4 5 Open Diagnostics can be grouped or individually assigned by the user and may be placed in these outputs The 0 10 vdc input GBAS module contains 4 analog inputs one binary input for demand limit four analog outputs and one binary output The 4 analog inputs can accept a 0 10 vdc signal and be assigned to 1 Leaving Solution Set point 2 Ice BuildTerminate Set point 3 Hot Start Load Limit Set point 4 Maximum Capacity Level Set point 36 Controls The 4 analog outputs can be assigned to 1 Leaving Solution Temperature 2 Entering SolutionTemperature 3 Saturated CondenserTemp Ckt 1 2 Evaporator Temp Ckt 1 2 Liquid Line Pressure Ckt1 2 Suction Pressure Ckt 1 2 Actual Capacity Level ONO b Outdoor AirTemperature
95. ycol concentration for safe operation The maximum catalog leaving solution temperature from the evaporator is 65 F for outdoor ambients up to 115 F High leaving water temperatures exceeding this may result in excessive suction temperatures and therefore inadequate motor cooling For applications requiring high leaving water temperatures contact your localTrane sales office for suggested alternatives The maximum water temperature that can be circulated through an evaporator when the unit is not operating is 108 F 100 F for CGA 8 10 12 2 and 15 ton chillers The evaporator becomes thermal stress limited at these temperatures 2 Supply Water Temperature Drop The performance data forTrane chillers is based on a chilled water temperature drop of 10 F Temperature drops outside this range will result in unit performance that differs from that cataloged For performance data outside the 10 F range see the Performance Adjustment Factors section in this catalog Chilled water temperature drops from 6 to 18 F 8 to 12 F in CGA units may be used as long as minimum and maximum water temperature and minimum and maximum flow rates are not violated Temperature drops outside 6 to 18 F 8 to 12 F in CGA units are beyond the optimum range for control and may adversely affect the controller s capability to maintain an acceptable supply water temperature range Further temperature drops of less than 6 F may res

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