Trane CCAF, CGWF User Manual

Scroll Liquid Chillers
Model CGWF and CCAF 20 to 60 Tons (60 Hz) 17 to 50 Tons (50 Hz) Water-Cooled and Condenserless
Built For the Industrial and Commercial Markets
January 2004
CG-PRC012-EN
The Trane 20-60 Ton Scroll Liquid Chiller
More Than Just Another “Improved” Chiller
— Advanced Design — Better Reliability — Superior Efficiency — New CH530 Controls — Better Availability — Easier To Install and Operate
Microprocessor Operator Interface
Design
The Trane scroll compressor is the most advanced scroll compressor in the industry.
Reliability
64 percent fewer compressor parts, compared to reciprocating compressors, mean long and reliable life.
Efficiency
CGWF scroll chillers meet and exceed ASHRAE Standard 90.1 full and part load efficiencies. Part load efficiencies are simply unmatched by reciprocating chillers.
Control
CH530 controls enable scrolling access to inputs and operating information via the LCD touch-screen display. Job­specific communication options allow greater reporting flexibility. The CH530 is compatable with LonMark communications.
Availability
Fast ship cycles on both stock and built­to-order specials.
Installation
Small unit size, factory wiring, easy lifting provisions, and start-up control logic mean quick and easy setup. Chillers fit through standard single­width door.
Operation
Smart safety features and over 60 diagnostic displays mean easy and virtually trouble-free operation.
Rugged Trane Scroll Compressor
Condenser Leaving Water Piping
Condenser Entering Water Piping
Control Panel
Evaporator Leaving Water Piping
CG-PRC012-EN© 2004 American Standard Inc. All rights reserved.
Contents
Introduction
Features and Benefits
World Class Efficiency and Reliability Options
Controls
Application Considerations
Model Number
General Data
Selection Procedure
Performance Data
Full Load Performance Part Load Performance Adjustment Factors Pressure Drops
2
4
8
12
13
14
15
16
CG-PRC012-EN
Electrical Data and Connections
Typical Wiring Diagram Field Layout
Dimensional Data
Weights
Mechanical Specifications
27
32
37
38
3
Features and Benefits
Trane Value Means Fast Availability, Easy Installation and Quality Service
Packed Stock For Fast Delivery
When your project is a fast-track job, Trane can help. A wide range of chillers are stocked and can be shipped soon after receipt of your order.
Build To Order
Need a special chiller fast? Think Trane scroll chillers. New manufacturing technology and inventory control means the fastest delivery schedule in the industry. Wide array of standard options provides the right chiller for the job fast.
Installation
• Only one power connection hook-up — for fast and inexpensive installation.
• Integrated Comfort™ system means only single pair connections are required for control interfaces and therefore, lower total installation costs.
• Factory refrigerant and oil charged units help speed installation.
• All units easily fit through a standard single width door.
• CH530 provides a wealth of information.
• Factory testing of all Trane equipment ensures the system works, allowing smoother start-up & reducing follow-up costs.
Easy Serviceability
Trane 20 through 60 ton scroll chillers are designed with service personnel in mind. All major components are replaceable without complete unit disassembly. Plus, CH530 provides diagnostic capability to aid service personnel in analyzing problems. Therefore, if a problem does occur, the chiller can be up and running in a shorter period of time.
Single-Source Responsibility
A wide range of products designed for complete compatibility are available with the scroll chillers. Your entire building comfort system can be completed using components from Trane.
The Added Value of Applications Expertise
You get a quality chiller, properly selected and applied in a properly designed system. That means a comfort system that works, the first time!
The standard ARI rating condition (54/44°F and 85°F/3.0 gpm per ton) and IPLV are ARI certified. All other ratings, including the following, are outside the scope of the certification program and are excluded:
Glycol.
50 Hz.
Condenserless models CCAF. Water Chiller Systems Business Unit
CG-PRC012-EN4
Features and
World Class Efficiency
ASHRAE Standard 90.1
meet and exceed the new efficiency levels mandated by ASHRAE Standard
90.1. This new standard requires higher efficiencies than past technologies can deliver. It mandates higher efficiency levels for scroll water chillers in comparison to reciprocating chillers. In fact, energy efficiency is so paramount the US Federal Government has adopted standard 90.1. Federal Executive Order mandates energy consuming devices procured must be in the top 25% of their class. In the case of chillers, ASHRAE 90.1 is the product standard for measurement.
Risk.
Not only has ASHRAE 90.1 been adopted by the US Federal Government, it’s expected to be adopted domestically, if not globally, in the future. Make sure that your chillers as well as your entire HVAC system complies, or you may be caught retrofitting your project with new equipment and paying extra design dollars if the code changes during construction.
Trane’s CGWF was designed with the end user’s requirements in mind. Efficiency and reliability were primary design concerns with this latest generation machine.
Operating Torque
All Trane chillers
Benefits
& Reliability
Leading in Efficiency and Reliability with State-Of-The-Art Scroll Compressor Technology
Efficiency
The energy efficiency of the scroll chiller results in energy costs lower than any other comparable chiller. Full load efficiencies are improved beyond reciprocating chillers, but part load efficiencies are simply unmatched by any other manufacturer.
Superior efficiencies are obtained by combining many of the traditional scroll chiller energy efficient features with the Trane scroll compressor technology. HERE’S HOW:
• Scroll compressor’s positive displacement design
• Dual refrigerant circuits (40-60 ton units)
• Multiple compressors
• Optimum system design
• Reduced friction
• No valves
• Advanced heat transfer surfaces
Scroll Chiller Energy Usage Savings
Typical Reciprocating Chiller
Reliability
The Trane scroll chiller with many new improvements, now brings an exciting new compressor to the commercial market — the Trane scroll compressor. Trane has designed the scroll compressor to be a leader in reliability. HERE’S HOW:
• Simple design with 64 percent fewer parts than equal capacity reciprocating compressor.
• Scroll compliance allows liquid and dirt to pass through without damaging compressor (liquid slugging resistant).
• Advanced microelectronics protect both compressor and motor from typical electrical fault conditions.
• Scroll compressors have less than a third the torque variations of a reciprocating compressor.
• Years of laboratory testing have optimized compressor and chiller systems reliability.
• Water-cooled scroll chillers are factory tested.
10-20% Annual Energy Savings
Chart illustrates low torque variation of the Trane scroll compressor vs reciprocating compressor.
CG-PRC012-EN
Scroll Chiller
Kilowatt Hours
Chiller Load (%)
Graph illustrates Trane scroll chiller’s superior annual energy costs vs typical reciprocating chillers.
5
Features and
World Class Efficiency
General
The scroll compressor has two scrolls. The top scroll is fixed and the bottom scroll orbits. Each scroll has walls in a spiral shape that intermesh.
Inlet-First Orbit
As the bottom scroll orbits, two refrigerant gas pockets are formed and enclosed.
Compression-Second Orbit
The refrigerant gas is compressed as the volume is reduced closer to the center of the scroll.
Discharge-Third Orbit
The gas is compressed further and discharged through a small port in the center of the fixed scroll.
Benefits
& Reliability
Trane Scroll Compressor — Maximum Efficiency with Enhanced Reliability
Scroll Principal Components
This is a cutaway view of a hermetic, scroll compressor, showing the relative positions of the principal components. Shown is a Trane 10-ton, 3600 rpm, 60 Hz [3000 rpm, 50 Hz] scroll compressor as an example.
The principle of operation of this example compressor is as follows: The suction gas is drawn into the compressor at A. The gas then passes through the gap between the rotor and stator, B, cooling the motor, before it enters the compressor housing, C. Here, the velocity of the gas is reduced, causing a separation of the entrained oil from the gas stream. The gas then enters the intake chamber, D, that encircles the scrolls.
Finally, the suction gas is drawn into the scroll assembly where it is compressed and discharged into the dome of the compressor. The dome of this example compressor acts as a hot gas muffler which dampens the pulsations before the gas enters the discharge line, E.
CG-PRC012-EN6
Features and Benefits
Options
Hot Gas Bypass: Hot gas bypass option
allows unit operation below the minimum step of unit unloading. The regulator valve, along with all associated refrigerant piping and electrical wiring, are factory installed and tested on one refrigeration circuit. Unit does not start in hot gas bypass mode. If the unit operates in bypass mode for 30 minutes without a call for cooling, it will pump down and shut off. Unit starts immediately upon a further call for cooling.
Chilled Water Reset: Front panel settable control, microprocessor based control strategy, and field-installed sensor for ambient temperature based reset are included in this option. Return water reset sensor is standard, but panel controller and control strategy must be ordered as an option.
Tracer Summit Communication Interface: Permits bi-directional
communication to the Trane Integrated Comfort system.
LonTalk LCI-C Communication Interface:
Provides the LonMark chiller profile inputs/outputs for use with a generic building automation system.
Remote Input Options
Remote chilled water setpoint input (4-20mA/2-10Vdc), compressor inhibit which locks out the second compressor on each circuit reducing the kW draw or both.
Control Output Options
Programmable relays provided to indicate: Compressor running, maximum capacity, chiller limit mode, warning (informational diagnostic), alarm latching (shutdown diagnostic), alarm nonlatching (shutdown diagnostic), alarm latching or nonlatching.
Options
Ice Making Controls: In ice-making mode, the unit will operate fully loaded in response to jobsite supplied contact closure. Ice making will terminate when the return fluid temperature falls below an adjustable setpoint (minimum 20°F [-6.7°C]). When not in ice making mode, unit will provide modulating capacity control based on leaving chilled fluid temperature (20-55°F) [-6.7°C to 12.8°C].
Unit Mounted Disconnect Switch: Non­fused molded case disconnect switch factory installed in control panel for disconnecting main three-phase power.
Isolators: Neoprene-in-shear isolators for field installation under unit frame.
Sound Attenuation: Factory-installed acoustical attenuation for applications where extremely low sound level is required.
Water Regulating Valves: Field-installed valves provide means for control of head pressure.
Outdoor Temperature Sensor: Field­installed outdoor temperature sensor with an adjustable setpoint provides means for low ambient lockout.
Condenser Water Temperature Sensor:
Factory installed temperature sensor provided for microprocessor display.
CG-PRC012-EN
7
Controls
Human Interfaces
The Trane water-cooled 20-60 ton scroll CGWF chiller offers an easy-to-use operator interface panel, the DynaView.
DynaView is an LCD touchscreen display that is navigated by file tabs. This is an advanced interface that allows the user to access any important information concerning setpoints, active temperatures, modes, electrical data, pressures, and diagnostics.
Safety Controls
A centralized main processor 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.
Chiller Controls (CH530) directly
Tracer senses the control variables that govern the operation of the chiller: evaporator pressure and condenser pressure. When any one of these variables approaches a limit condition where damage may occur to the unit or shutdown on a safety, Tracer Chiller Controls takes corrective action to avoid shutdown and keep the chiller operating. This happens through compressor shedding. Tracer Chiller Controls optimizes total chiller power consumption during normal operating conditions. During abnormal operating conditions, the microprocessor will continue to optimize chiller performance by taking the corrective action necessary to avoid shutdown. This keeps cooling capacity available until the problem can be solved. Whenever possible, the chiller is allowed to perform its function; making chilled water. Overall, the safety controls help keep the building or process running and out of trouble.
Figure C1. DynaView operator interface
Standalone Controls
Interface to standalone units is very simple; only a remote auto/stop for scheduling is required for 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.
Standard Features
External Auto/Stop — A jobsite provided contact closure will turn the unit on and off.
Chilled Water Flow Interlock — A jobsite provided contact closure from a chilled water pump contactor and/or a flow switch is required and will allow unit operation if a load exists and flow is proven. This feature will allow the unit to run in conjunction with the pump system.
Emergency Stop — A jobsite supplied contact opening wired to this input will turn the unit off and require a manual reset of the unit microcomputer. This closure is typically triggered by a jobsite supplied system such as a fire alarm.
Chilled Water Pump Control — Unit controls provide an output to control the chilled water pump(s). One contact closure to the chiller is all that is required to initiate the chilled water system.
Chilled Water Temperature Reset Reset can be based on return water temperature or outdoor air temperature (optional).
Condenser Water Pump Control — Unit controls provide an output to control the condenser water pump(s). One contact closure to the chiller is all that is required to initiate the chilled water system.
Condenser Water Flow Protection — A jobsite supplied contact closure from a flow switch or pressure switch is required and will shut down the unit if flow is lost.
CG-PRC012-EN8
Controls
Easy Interface to A Generic Building Management System
Controlling the scroll CGWF chiller with building management systems is state­of-the-art, yet simple with either the LonTalk Communications Interface for Chillers (LCI-C) or Generic Building Management System Hardwire Points.
Simple Interface with Other Control Systems
CH530 controls afford simple interface with other control systems, such as time clocks, building automation systems, and ice storage systems. This means you have the flexibility to meet job requirements while not having to learn a complicated control system. This setup has the same standard features as a stand-alone water chiller, with the possibility of having additional optional features.
What are LonTalk, Echelon, and LonMark?
LonTalk is a communications protocol developed by the Echelon Corporation. The LonMark association develops control profiles using the LonTalk communication protocol. LonTalk is a unit level communications protocol, unlike BACNet used at the system level.
LonTalk Communications Interface for Chillers (LCI-C)
LonTalk Communications Interface for Chillers (LCI-C) provides a generic automation system with the LonMark chiller profile inputs/outputs. The inputs/ outputs include both mandatory and optional network variables. Note: LonMark network variable names are in parentheses when different from chiller naming convention.
Chiller Inputs:
• Chiller Enable/Disable
• Chilled Liquid Setpoint (Cool Setpoint)
• Compressor Inhibit
• Chiller Mode (Ice Making)
Chiller Enable/Disable
Allows for chiller to be started or stopped depending on if certain operating conditions are met.
Chilled Water Setpoint
Allows for the external setting independent of the front panel setpoint to adjust the leaving water temperature setpoint.
Compressor Inhibit
Locks out the second compressor on each circuit, reducing the kW draw.
Ice Making
Provides interface with ice making control systems. Please refer to page 11 for more information.
Chiller Outputs:
• On/Off
• Active Setpoint
• Average Percent RLA
• Compressor Inhibit
• Compressor Starts
• Compressor Run Times
• Leaving Chilled Water Temperature
• Entering Chilled Water Temperature
• Evaporator Refrigerant Temperature
• Evaporator Refrigerant Pressure
• Evaporator Water Pump Request & Flow Status
• Leaving Condenser Water Temperature
• Entering Condenser Water Temperature
• Condenser Refrigerant Temperature
• Condenser Refrigerant Pressure
• Condenser Water Pump Request & Flow Status
• Outdoor Air Temperature (CCAF)
• Alarm Descriptor
• Chiller Status
Active Setpoint
Indicates the current value of the leaving water temperature setpoint
Average Percent RLA
Provides the current capacity level via % RLA
Compressor Starts and Run Times
Provides the number of starts and run time for each compressor
Alarm Descriptor
Provides alarm messages based on pre­determined criteria
Chiller Status
Indicates the running modes and states of the chiller, i.e. Running in alarm mode, chiller enabled, chiller being locally controlled, etc…
Generic Building Management System Hardwire Points
GBAS may be achieved via hardware input/output as well. The input/outputs are as follows:
Chiller Hardwire Inputs Include:
• Chiller Enable/Disable
• Circuit Enable/Disable
• External Chilled Water Setpoint
• Compressor Inhibit
• Ice Making Enable
Programmable Relays and Alarms
The unit provides seven output options, of which four can be chosen. a) Compressor running indication b) Maximum capacity c) Chiller limit mode d) Warning informational diagnostic
indication
e) Alarm latching shutdown diagnostic
indication
f) Alarm nonlatching shutdown
diagnostic indication
g) Alarm latching or nonlatching
shutdown diagnostic indication
CG-PRC012-EN
9
Controls
Tracer Summit controls — Interface With The Trane Integrated Comfort System (ICS)
Trane Chiller Plant Control
The Tracer Summit Chiller Plant Building Management System with Chiller Plant Control provides building automation and energy management functions through stand-alone control. The Chiller Plant Control is capable of monitoring and controlling your entire chiller plant system.
Application software available:
• Time-of-day scheduling
• Demand limiting
• Chiller sequencing
• Process control language
• Boolean processing
• Zone control
• Reports and logs
• Custom messages
• Run time and maintenance
• Trend log
• PID control loops
And of course, the Trane Chiller Plant Control can be used on a stand-alone basis or tied into a complete building automation system.
When the scroll CGWF chiller is used in conjunction with a Trane Tracer
Summit system, the unit can be monitored and controlled from a remote location. The chiller can be controlled to fit into the overall building automation strategy by using time of day scheduling, timed override, demand limiting, and chiller sequencing. A building owner can completely monitor the chiller from the Tracer system, since all of the monitoring information indicated on the unit controller’s microcomputer can be read off the Tracer system display. In addition, all the powerful diagnostic information can be read back at the Tracer system. Best of all, this powerful capability comes over a single twisted pair of wires! The scroll liquid chillers can interface with many different external control systems, from simple stand-alone units to ice making systems.
A single twisted pair of wires tied directly between the CGWF chiller and a Tracer
Summit system provides control, monitoring and diagnostic capabilities. Control functions include auto/stop, adjustment of leaving water temperature setpoint, compressor operation lockout for kW demand limiting and control of ice making mode. The Tracer system reads monitoring information such as entering and leaving evaporator water temperatures and outdoor air temperature. Over 60 individual diagnostic codes can be read by the Tracer system. In addition, the Tracer system can provide sequencing control for up to 25 units on the same chilled water loop. Pump sequencing control can be provided from the Tracer system. Tracer ICS is not available in conjunction the external setpoint capability.
Required Options
Tracer Interface
External Trane Devices Required
Tracer Summit
, Tracer 100 System or
Tracer Chiller Plant Control
Additional Features That May Be Used
Ice Making Control
CG-PRC012-EN10
Controls
Trane Chiller Plant Automation
Trane’s depth of experience in chillers and controls makes us a well-qualified choice for automation of chiller plants using scroll liquid chillers. The chiller plant control capabilities of the Trane Tracer Summit
®
building automation system are unequaled in the industry. Our chiller plant automation software is fully pre-engineered and tested. It is a standard software application, not custom programming which can prove to be difficult to support, maintain, and modify.
Energy Efficiency
Trane chiller plant automation intelligently sequences starting of chillers to optimize the overall chiller plant energy efficiency. Individual chillers are designated to operate as base, peak, or swing based on capacity and efficiency. Sophisticated software automatically determines which chiller to run in response to current conditions. The software also automatically rotates individual chiller operation to equalize runtime and wear between chillers.
Trane chiller plant automation enables unique energy-saving strategies. An example is controlling pumps, and chillers from the perspective of overall system energy consumption. The software intelligently evaluates and selects the lowest energy consumption alternative.
Keeping Operators Informed
A crucial part of efficiently running a chiller plant is assuring that the operations staff is instantly aware of what is happening in the plant. Graphics showing schematics of chillers, piping, pumps, and towers clearly depict the chiller plant system, enabling building operators to easily monitor overall conditions. Status screens display both current conditions and upcoming automated control actions to add or subtract chiller capacity. CGWF and other chillers can be monitored and controlled from a remote location.
Tracer Summit features standard report templates listing key operating data for troubleshooting and verifying performance. Reports for each type of Trane chiller and three and six-chiller systems are also standard. Detailed reports showing chiller runtimes aid in planning for preventative maintenance.
Swift Emergency Response
We understand the importance of maintaining chilled water production while protecting your chillers from costly damage. If no water flow is detected to a chiller’s piping, the start sequence is aborted to protect the chiller. The next chiller in the sequence is immediately started to maintain cooling.
In the event of a problem, the operator receives an alarm notification and diagnostic message to aid in quick and accurate troubleshooting. A snapshot report showing system status just prior to an emergency shutdown helps operators determine the cause. If emergency conditions justify an immediate manual shutdown, the operator can override the automatic control.
Easy Documentation for Regulatory Compliance
Comprehensive documentation of refrigerant management practices is now a fact of life. Trane chiller plant automation generates the reports mandated in ASHRAE Guideline 3.
Integrated Comfort
Capabilities
When integrated with a Tracer Summit building management system performing building control, Trane chiller plant automation coordinates with Tracer Summit applications to optimize the total building operation. With this system option, the full breadth of Trane’s HVAC and controls experience are applied to offer solutions to many facility issues. If your project calls for an interface to other systems, Tracer Summit can share data via BACnet
, the
ASHRAE open systems protocol.
Ice Making Systems Controls
An ice making option may be ordered with the 20-60 ton scroll liquid chiller. CH530 will accept a command to initiate ice making. When in the ice making mode, the chiller will be fully loaded and will continue to operate until the ice command is removed or the evaporator entering water temperature reaches the active ice termination setpoint. If terminated on the evaporator entering water temperature, CH530 will not allow the chiller to restart until the ice making command is removed.
Additional Options That May Be Used In Conjunction
Failure Indication Contacts Communications Interface (For Tracer Systems) Chilled Water Temperature Reset
CG-PRC012-EN
11
Application Considerations
Unit Location
Units should be installed indoors where exposure to rain or water splash is minimal. A level foundation or flooring must be provided which will support at least 150 percent of the operating weight of the unit. The chiller foundation must be rigid to reduce vibration transmission to a minimum. Use of vibration isolators is recommended for applications with sensitive vibration and noise criteria.
Allow service clearance for compressor removal as well as evaporator and condenser tube removal.
Condenser Water Limitations
Water-cooled scroll chillers start and operate satisfactorily over a range of load conditions with uncontrolled entering water temperature.
Reducing the condenser water temperature is an effective method of lowering the power input required. However, by reducing the condenser water temperature beyond certain limits, the effect causes a reduction in the pressure drop across the thermal expansion valve to a point when system instability may occur.
In general, continuous machine operation with entering condenser water temperature below 60°F [15.5°C] is not recommended. When the condenser water temperature is expected to drop below 60°F [15.5°C], it is recommended that some form of condenser water temperature control be used to ensure optimal machine performance.
Water Treatment
Use of untreated or improperly treated water in chillers may result in scaling, erosion, corrosion, algae or slime. It is recommended that the services of a qualified water treatment specialist be engaged to determine what treatment, if any, is advisable. Trane assumes no responsibility for the results of untreated, or improperly treated water.
Water Pumps
Avoid specifying or using 3600 rpm, 60 Hz [3000 rpm, 50 Hz] condenser water and chilled water pumps. Such pumps may operate with objectional noise and vibration. In addition, a low frequency beat may occur due to the slight difference in operating rpm between water pumps and scroll compressor motors. Where noise and vibration-free operation is important, Trane encourages the use of 1750 rpm, 60 Hz [1450 rpm, 50 Hz] pumps.
Remote Condenser
Remote condensers should be located as close as possible to the chiller to ensure minimum pressure drops of discharge refrigerant. If non-Trane condensers are provided, a subcooling circuit must be provided in order to achieve cataloged performances (16°F [-8.9°C] subcooling).
CG-PRC012-EN12
Model Number Description
Model Number Description
CGW F 020 4 C A0 U A A 1 C L 1 D 0 N N 0 0 N 0 X 0 X
1,2,3 4 5,6,7 8 9 10,11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
Digits 01, 02, 03, – Chiller series
CGWF = Water cooled scroll
chiller
CCAF = Scroll compressor chiller
(condenserless)
Digits 04, – Development sequence
Digits 05, 06, 07 – Unit nominal tonnage
020 = 20 Nominal tons 025 = 25 Nominal tons 030 = 30 Nominal tons 040 = 40 Nominal tons 050 = 50 Nominal tons 060 = 60 Nominal tons
Digit 08 – Unit voltage
G = 208-230/60/3 D = 380/60/3 N = 400/50/3 4 = 460/60/3 5 = 575/60/3
Digit 09 – Ship Cycle
C = Made to order (C) = Packed stock (Contact BU)
Digit 10, 11 – Design sequence
XX = Factory/ABU assigned
Digit 12 – Agency listing
N = No agency listing U = C/UL listing
Digit 13 – Pressure vessel code
A = ASME code C = Canadian code
Digit 14 – Shipping package
A = Ship via flat bed truck B = Ship w/shrink wrap bag and skid C = Ship w/skid
Digit 15 – Condenser temperature range
0 = None - CCAF units 1 = Standard 60-90°F [15.6-32.2°C] entering water temp 4 = High 90-130°F [32.2-54.4°C] entering water temp
Digit 16 – Condenser tube material
N = None - CCAF units C = Std copper finned tubes
Digit 17 – Condenser water connections
N = None - CCAF units L = Left hand cond water connections (default) R = Right hand cond water connections
Digit 18 – Evaporator temperature range
1 = Standard cooling 40-60°F [4.4-15.6°C] 2 = Ice making 26-39°F [-3.3-3.9°C] 3 = Low temp 10-25°F [-12.2-(-3.9)°C] 4 = Standard cooling/Ice making 20-60°F [-6.7-15.6°C]
Digit 19 – Power line connection type
T = Terminal block D = Non-fused disconnect switch
Digit 20 – Short circuit rating
0 = No short circuit rating 1 = With short circuit rating
Digit 21 – Control input options
N = No options R = Remote chilled water setpoint input C = Remote compressor inhibit and/or
icemaking input
B = Remote CWS and compressor
inhibit/icemaking input
Digit 22 – Control output options
N = No options P = Programmable relays for remote
alarm, run, etc.
Digit 23 – Auxiliary sensor options
0 = None 1 = Condenser water temp sensors
(CGWF only)
2 = Outdoor temp sensor -
CWR or Amb Lockout
3 = Both condenser and outdoor
temp sensor
Digit 24 – Communication options
0 = None 3 = Tracer Summit interface 5 = LonTalk LCI-C interface
Digit 25 – Hot gas bypass
N = NO HGBP valve/function H = HGBP function included
Digit 26 – Sound attenuator
0 = No sound attenuator 1 = Sound attenuator - factory installed
Digit 27 – Ship-with accessories ­isolators, WRV
X = No ship-with accessories N = Neoprene isolators A = 1.5" 2-way water reg valve x 1 B = 2" 2-way water reg valve x 1 C = 2.5" 2-way water reg valve x 1 D = 1.5" 2-way water reg valve x 2 E = 2" 2-way water reg valve x 2 F = 2.5" 2-way water reg valve x 2 G = Neo isolators + 1.5" WRV x 1 H = Neo isolators + 2" WRV x 1 J = Neo isolators + 2.5" WRV x 1 K = Neo isolators + 1.5" WRV x 2 L = Neo isolators + 2" WRV x 2 M = Neo isolators + 1.5" WRV x 2
Digit 28 – Ship-with accessories - flow switches
0 = No flow switches 1 = 150 psi NEMA-1 flow switch
(FS4-3) x 1
2 = 150 psi NEMA-1 flow switch
(FS4-3) x 2
4 = 150 psi NEMA-4 flow switch
(FS8-W) x 1
5 = 150 psi NEMA-4 flow switch
(FS8-W) x 2
Digit 29 – Design special
X = Unit has no special features S = Unit has special design feature
CG-PRC012-EN
13
General Data
Table GD-1. General data — CGWF water-cooled chiller
Size 20 25 30 40 50 60 Compressor
Quantity (1) 2 2 2 2/2 2/2 2/2 Nominal Size (tons) (2) 10/10 10/15 15/15 10-10/10-10 10-15/10-15 15-15/15-15 Steps of Unloading (%) 100,50 100,60 100,50 100,75,50,25 100,80,60,30 100,75,50,25
Evaporator
Water Storage (gallons) 12 11 16 13 21 40
Min. Flow (gpm) 24 30 36 48 60 84
Max. Flow (gpm) 72 90 108 144 180 252
Condenser
Water Storage (gallons) 5.0 6.1 7.6 11.7 13.9 14.0
Min. Flow (gpm) 30 36 50 60 72 90
Max. Flow (gpm) 90 108 146 180 216 325
General Unit
Refrigerant R-22 R-22 R-22 R-22 R-22 R-22 No. of Independent Refrigerant Circuits 1 1 1 2 2 2 Refrigerant (pound) 50 50 90 50/50 50/50 75/75 Charge (kilogram) 22.7 22.7 40.8 22.7/22.7 22.7/22.7 34/34 Oil Charge (pints) 16 22 28 16/16 22/22 28/28
Notes
1. Data containing information on two circuits shown as follows: CKT 1/CKT 2
2. Nominal compressor sizes based on 60 Hz.
(liters) 45 42 61 49 80 151
(L/s) 1.5 1.9 2.3 3.0 3.8 4.7
(L/s) 4.5 5.7 6.8 9.1 11.4 17.3
(liters) 18.9 23.2 28.9 44.2 52.7 53.1
(L/s) 1.9 2.3 3.2 3.8 4.5 5.7
(L/s) 5.7 6.8 9.2 11.4 13.6 20.5
(liters) 7.6 10.4 13.2 7.6/7.6 10.4/10.4 13.3/13.3
Table GD-2. General data — CCAF compressor chiller
Size 20 25 30 40 50 60 Compressor
Quantity (1) 2 2 2 2/2 2/2 2/2 Nominal Size (tons) (2) 10/10 10/15 15/15 10-10/10-10 10-15/10-15 15-15/15-15 Steps of Unloading (%) 100,50 100,60 100,50 100,75,50,25 100,80,60,30 100,75,50,25
Evaporator
Water Storage (gallons) 12 11 16 13 21 19
Min. Flow (gpm) 24 30 36 48 60 84
Max. Flow (gpm) 72 90 108 144 180 252
General Unit
Refrigerant R-22 R-22 R-22 R-22 R-22 R-22 No. of Independent Refrigerant Circuits 1 1 1 2 2 2 Refrigerant (pound) 6 8 12 6/6 8/8 12/12 Charge (kilogram) 2.7 3.6 5.4 2.7/2.7 3.6/3.6 5.5/5.5 Oil Charge (pints) 16 22 28 16/16 22/22 28/28
Notes:
1. Data containing information on two circuits shown as follows: CKT 1/CKT 2
2. Nominal compressor sizes based on 60 Hz.
(liters) 45 42 61 49 80 72
(L/s) 1.5 1.9 2.3 3.0 3.8 4.7
(L/s) 4.5 5.7 6.8 9.1 11.4 17.3
(liters) 7.6 10.4 13.2 7.6/7.6 10.4/10.4 13.3/13.3
CG-PRC012-EN14
Selection Procedures
The chiller capacity tables on the following pages cover the most frequently encountered leaving water temperatures. For temperature drops other than 10°F [5.6°C], refer to Table SP-1, Performance Adjustment Factors, shown below.
Additional chiller selections and performance information can be obtained through your local Trane sales office.
To select a Trane water-cooled scroll chiller, the following information is required:
1. Design load in tons of refrigeration
2. Design chilled water temperature drop
3. Design leaving chilled water
temperature
4. Entering condenser water temperature
Evaporator flow rate (gpm) can be determined by using the following formula:
gpm =
Tons x 24 Chilled Water DT (F)
Condenser flow rate (gpm) can be determined by using the following formula:
gpm =
24 x (tons + (0.285 x compressor kW) Condenser Water DT (F)
Table SP-1. Performance adjustment factors
Fouling Water Evap. Cond. Factor Delta T Capacity GPM kW GPM
0.00010 10 1.000 1.000 1.000 1.000
Note: This selection procedure is for water only as the solution.
8 0.997 1.231 1.000 0.997
12 1.007 0.829 1.001 1.006 14 1.012 0.714 1.001 1.010 16 1.017 0.628 1.002 1.014
Scroll Liquid Chiller — (CGWF) — Selection Example:
Given: System Load = 40 tons Leaving Chilled Water Temperature
(LCWT) = 44°F [6.7°C]
Entering Condenser Water Temperature
(EWT) = 85°F [29.4°C]
Leaving Condenser Water Temperature
(LWT) = 95°F [35°C]
Chilled Water Temperature Drop
= 10°F [5.6°C]
1. From Table PD-1 (Performance Data), a CGWF 40 at the given conditions will produce 39.4 tons with a compressor power input of 30.3 kW and a unit EER of 15.6.
2. To determine the evaporator and condenser water pressure drops, the flow rates (gpm) must be determined. Using the formula above, this unit would require an evaporator flow rate of 95 gpm and a condenser flow rate of 115 gpm. (Compressor kW is found in the same table as the capacity.) The Evaporator Pressure Drop Curve, Chart PD-1, indicates that 95 gpm through a 40 ton evaporator results in a pressure drop of 13.8 feet of water. The Condenser Pressure Drop curve, Chart PD-2, indicates 115 gpm through a 40 ton condenser results in a pressure drop of 14 feet of water.
3. The final unit selection is:
— Quantity (1) CGWF 40
— Cooling Capacity = 39.4 tons
— Entering/Leaving Chilled Water
Temperatures = 54/44°F [12.2/6.7°C]
— Chilled water flow rate = 95 gpm
— Evaporator water pressure drop =
13.8 feet
— Cooling water flow = 115 gpm
— Condenser water pressure drop =
14 feet
— Compressor power input = 30.3 kW
— Unit EER = 15.6
Compressor Chiller – (CCAF) – Selection Example:
Select the unit for the following conditions:
A compressor chiller is required to produce 45 tons when matched with an air-cooled condenser. The leaving chilled water temperature is 44°F [6.7°C]. The evaporator temperature differential is 10°F [5.6°C]. The ambient temperature is 95°F [35°C].
1. Select the nominal unit size. The performance data is tabulated by leaving chilled water temperature. For example, the standard unit capacities at 44°F [6.7°C] leaving chilled water temperature are found on page 21. The system that best meets the tonnage requirement is a CCAF 50 matched with a CAUC C50. The unit capacity is 47.1 tons with a kW input of
56.3. The compressor chiller EER is
10.0.
2. Calculate the required chilled water flow rate.
3. gpm = Tons x 24
Chilled Water DT (F)
From this example,
47.1 x 24 = 113
gpm =
10
4. Determine the evaporator water pressure drop. The evaporator water pressure drop is located on page 22. Entering the evaporator chart at 113 gpm, the pressure drop for a CCAF 50 evaporator is 7.9 feet.
5. Unit Selection
The above procedure shows the proper selection for this example is a CCAF 50 with a CAUB C50 condenser operating as follows:
— Capacity = 47.1
— Entering/leaving chilled water
temperature = 54/44°F [12.2/6.7°C]
— Chilled water flow rate = 113 gpm
— Evaporator water pressure drop =
7.9 feet
— Compressor power input = 56.3
— Unit EER = 10.0
CG-PRC012-EN
15
Performance
Full Load
Data
Performance
Table PD-1. 60 Hz CGWF performance data in English units
Evaporator Entering Condenser Water Temperature (F)
Leaving Water Unit 75 80 85 90 95
Temperature (F) Size Tons kW EER Tons kW EER Tons kW EER Tons kW EER Tons kW EER
40 30 28.3 20.7 16.4 27.6 21.7 15.3 27.0 22.9 14.1 26.3 24.1 13.1 25.6 25.4 12.1
42 30 29.4 20.8 17.0 28.7 21.8 15.8 28.0 23.0 14.7 27.3 24.2 13.6 26.6 25.5 12.5
44 30 30.6 20.8 17.6 29.9 21.9 16.4 29.2 22.9 15.3 28.4 24.3 14.0 27.7 25.6 13.0
46 30 31.7 20.9 18.2 31.0 22.0 16.9 30.3 23.1 15.7 29.5 24.4 14.5 28.7 25.7 13.4
48 30 32.9 21.0 18.8 32.2 22.1 17.5 31.4 23.2 16.2 30.7 24.5 15.0 29.9 25.8 13.9
50 30 34.1 21.1 19.5 33.4 22.1 18.1 32.6 23.3 16.8 31.8 24.6 15.6 31.0 25.0 14.4
Notes:
1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.0001 in the evaporator and 0.00025 in the condenser.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kW input is for compressors only.
4. EER = Energy Efficiency Ratio (Btu/watt-hout). Power inputs include compressors and control power.
5. Ratings are based on an evaporator temperature drop of 10°F.
6. Interpolation between points is permissible. Extrapolation is not permitted.
20 19.2 13.8 16.7 19.0 14.5 15.7 18.6 15.4 14.6 18.1 16.1 13.5 17.7 17.1 12.4 25 23.8 17.2 16.5 23.2 18.1 15.4 22.7 19.1 14.3 22.1 20.1 13.2 21.6 21.2 12.2
40 38.0 27.3 16.8 37.2 28.7 15.6 36.5 30.2 14.5 35.5 31.8 13.4 34.6 33.6 12.4 50 47.0 34.1 16.6 46.0 35.8 15.4 44.9 37.7 14.3 43.8 39.7 13.2 42.7 41.0 12.2 60 57.7 42.1 16.4 56.4 44.2 15.3 55.0 46.5 14.2 53.7 49.0 13.1 52.3 51.7 12.1 20 20.0 13.9 17.3 19.8 14.6 16.3 19.3 15.4 15.1 18.9 16.2 14.0 18.4 17.1 12.9 25 24.7 17.3 17.1 24.2 18.2 15.9 23.6 19.2 14.8 23.0 20.2 13.7 22.4 21.3 12.6
40 39.5 27.4 17.3 38.7 28.8 16.1 37.8 30.3 15.0 36.9 32.0 13.9 36.0 33.8 12.8 50 48.9 34.2 17.2 47.8 36.0 16.0 46.7 37.9 14.8 45.6 39.9 13.7 44.4 42.1 12.7 60 59.9 42.3 17.0 58.5 44.4 15.8 57.2 46.7 14.7 55.7 49.2 13.6 54.3 51.9 12.6 20 20.8 13.9 17.3 20.5 14.7 16.8 19.9 15.4 15.5 19.6 16.3 14.5 19.1 17.2 12.9 25 25.7 17.4 17.7 25.1 18.3 16.5 24.5 19.1 15.4 23.9 20.3 14.2 23.3 21.4 13.1
40 41.1 27.5 17.9 40.2 28.9 16.7 39.4 30.3 15.6 38.4 32.1 14.4 37.4 33.9 13.3 50 50.8 34.4 17.7 49.7 35.1 16.5 48.6 37.8 15.4 47.4 40.1 14.2 46.2 42.3 13.1 60 62.1 42.5 17.6 60.7 44.6 16.3 59.4 46.8 15.2 57.9 49.4 14.1 56.4 52.1 13.0 20 21.5 14.0 18.5 21.3 14.7 17.4 20.9 15.5 16.2 20.4 16.3 15.0 19.9 17.3 13.8 25 26.6 17.4 18.3 26.1 18.3 17.1 25.5 19.3 15.8 24.9 20.3 14.7 24.2 21.5 13.5
40 42.6 27.6 18.5 41.7 29.0 17.3 40.8 30.6 16.0 39.9 32.3 14.8 38.9 34.1 13.7 50 52.8 34.5 18.4 51.6 36.3 17.1 50.4 38.2 15.9 49.2 40.2 14.7 48.0 42.4 13.6 60 64.4 42.6 18.1 63.0 44.8 16.9 61.5 47.1 15.7 60.0 49.6 14.5 58.5 52.3 13.4 20 22.4 14.0 19.1 22.1 14.8 18.0 21.6 15.6 16.7 21.1 16.4 15.5 20.6 17.3 14.3 25 27.6 17.5 19.0 27.0 18.4 17.6 26.4 19.4 16.4 25.8 20.4 15.2 25.2 21.6 14.0
40 44.2 27.8 19.1 43.3 29.2 17.8 42.4 30.7 16.6 41.4 32.4 15.3 40.4 34.2 14.2 50 54.7 34.6 19.0 53.6 35.4 17.7 52.3 38.3 16.4 51.1 40.4 15.2 49.8 42.6 14.0 60 66.7 42.8 18.7 65.2 45.0 17.4 63.7 47.3 16.2 62.2 49.8 15.0 60.7 52.5 13.9 20 23.2 14.1 19.7 22.9 14.8 18.6 22.4 15.6 17.2 21.9 16.5 16.0 21.4 17.4 14.8 25 28.7 17.6 19.6 28.0 18.5 18.2 27.4 19.4 16.9 26.8 20.5 15.7 26.1 21.6 14.5
40 45.9 27.9 19.8 44.9 29.3 18.4 43.9 30.8 17.1 42.9 32.5 15.8 41.9 34.3 14.6 50 56.8 34.8 19.6 55.5 36.5 18.2 54.3 38.5 16.9 53.0 40.5 15.7 51.7 42.8 14.5 60 69.1 43.0 19.3 67.6 45.1 18.0 66.0 47.5 16.7 64.5 50.0 15.5 62.9 52.8 14.3
CG-PRC012-EN16
Performance
Full Load
Data
Table PD-2. 60 Hz CGWF performance data in Metric units
Evaporator Entering Condenser Water Temperature (C)
Leaving Water Unit 25 30 35
Temperature (C) Size kWo kWi COP kWo kWi COP kWo kWi COP
6 30 104.0 21.2 4.9 99.6 23.2 4.3 95.1 25.6 3.7
8 30 111.4 21.4 5.2 106.8 23.4 4.6 102.0 25.7 4.0
10 30 119.0 21.5 5.5 114.1 23.6 21.4 109.1 25.9 4.2
Notes:
1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.0176 in the evaporator and
0.044 in the condenser.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kWi input is for compressors only.
4. COP = Coefficient of Performance (kWo/total kW). Total kW include compressors and control power.
5. Ratings are based on an evaporator temperature drop of 5.6°C.
6. Interpolation between points is permissible. Extrapolation is not permitted.
20 70.4 14.2 5.0 67.7 15.5 4.4 64.7 17.1 3.8 25 87.1 17.7 4.9 83.5 19.4 4.3 79.8 21.8 3.7
40 139.5 28.0 5.0 133.9 30.7 4.4 128.1 33.8 3.8 50 172.4 35.0 4.9 165.3 38.3 4.3 157.9 42.2 3.7 60 211.0 43.2 4.9 202.2 47.3 4.3 193.1 52.0 3.7 20 75.7 14.3 5.3 72.7 15.7 4.6 69.6 17.3 4.0 25 93.5 17.8 5.3 89.8 19.5 4.6 85.8 21.5 4.0
40 150.3 28.2 5.3 144.5 30.9 4.7 138.3 34.1 4.1 50 185.3 35.2 5.3 177.7 38.6 4.6 169.9 42.5 4.0 60 226.0 43.5 5.2 216.8 47.6 4.6 207.2 52.4 4.0 20 80.8 14.4 5.6 77.7 15.8 21.7 74.4 17.4 4.3 25 99.9 17.9 5.6 95.9 19.6 21.5 91.8 21.6 4.8
40 159.9 28.4 5.6 153.8 31.2 21.8 147.3 34.3 4.3 50 197.9 35.5 5.6 185.9 35.2 23.3 181.7 42.8 4.2 60 240.7 43.8 5.5 231.0 48.0 21.2 221.0 52.8 4.2
Performance
CG-PRC012-EN
17
Performance
Full Load
Data
Performance
Table PD-3. 50 Hz CGWF performance data in English units
Evaporator Entering Condenser Water Temperature (F)
Leaving Wate Unit 75 80 85 90 95
Temperature (F) Size Tons kW EER Tons kW EER Tons kW EER Tons kW EER Tons kW EER
42 30 24.6 16.7 17.7 24.1 17.5 16.5 23.6 18.5 15.3 23.0 19.5 14.1 22.5 20.7 13.0
44 30 25.6 16.7 18.4 25.1 17.6 17.1 24.5 18.5 15.9 24.0 19.6 14.7 23.4 20.7 13.5
46 30 26.6 16.7 19.1 26.0 17.6 17.7 25.5 18.6 16.5 24.9 19.6 15.2 24.3 20.8 14.0
48 30 27.6 16.8 19.7 27.0 17.7 18.4 26.5 18.6 17.0 25.9 19.7 15.8 25.2 20.8 14.5
50 30 28.6 16.8 20.4 28.0 17.7 19.0 27.5 18.7 17.6 26.8 19.7 16.3 26.2 20.9 15.1
Notes:
1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.00010 in the evaporator and 0.00025 in the condenser.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kW input is for compressors only.
4. EER = Energy Efficiency Ratio (Btu/watt-hour). Power inputs include compressors and control power.
5. Ratings are based on an evaporator temperature drop of 10°F.
6. Interpolation between points is permissible. Extrapolation is not permitted.
20 19.2 13.8 16.7 19.0 14.5 15.7 18.6 15.4 14.6 18.1 16.1 13.5 17.7 17.1 12.4 20 16.8 11.1 18.1 16.4 11.7 16.8 16.0 12.4 15.5 15.6 13.1 14.3 15.3 13.9 13.1 25 20.7 13.9 17.9 20.3 14.6 16.6 19.8 15.5 15.4 19.4 16.3 14.2 18.9 17.3 13.1
40 33.2 21.9 18.2 32.5 23.1 16.9 31.8 24.4 15.6 31.0 25.9 14.4 30.2 27.4 13.2 50 41.0 27.4 17.9 40.1 28.9 16.7 39.2 30.5 15.5 38.3 32.2 14.3 37.4 34.1 13.1 60 50.4 33.8 17.9 49.3 35.6 16.7 48.2 37.5 15.4 47.1 39.6 14.3 46.0 41.9 13.2 20 17.4 11.1 18.8 17.1 11.7 17.4 16.7 12.4 16.1 16.3 13.2 14.9 15.9 13.9 13.7 25 21.5 13.9 18.6 21.1 14.7 17.3 20.6 15.5 16.0 20.1 16.4 14.8 19.6 17.3 13.6
40 34.5 22.0 18.9 33.8 23.2 17.5 33.0 24.5 16.2 32.2 25.9 14.9 31.4 27.5 13.7 50 42.6 27.5 18.6 41.7 29.0 17.3 40.8 30.6 16.0 39.9 32.3 14.8 38.9 34.2 13.6 60 52.3 33.9 18.5 51.2 35.7 17.2 50.1 37.6 16.0 48.9 39.7 14.8 47.7 42.0 13.7 20 18.1 11.2 19.5 17.7 11.8 18.1 17.3 12.4 16.7 16.9 13.2 15.4 16.5 14.0 14.2 25 22.4 13.9 19.2 21.9 14.7 17.9 21.4 15.5 16.6 20.9 16.4 15.3 20.4 17.4 14.1
40 35.8 22.0 19.6 35.1 23.2 18.2 34.3 24.5 16.8 33.5 26.0 15.5 32.7 27.5 14.2 50 44.3 27.6 19.3 43.3 29.0 17.9 42.4 30.6 16.6 41.4 32.4 15.4 40.4 34.3 14.2 60 54.2 34.0 19.1 53.1 35.8 17.8 51.9 37.7 16.5 50.8 39.8 15.3 49.5 42.1 14.1 20 18.8 11.2 20.2 18.4 11.8 18.8 18.0 12.5 17.3 17.6 13.2 16.0 17.2 14.0 14.7 25 23.2 14.0 19.9 22.7 14.7 18.5 22.2 15.5 17.2 21.7 16.4 15.9 21.2 17.4 14.6
40 37.2 22.0 20.3 36.4 23.2 18.8 35.6 24.6 17.4 34.8 26.0 16.1 34.0 27.6 14.8 50 45.9 27.6 20.0 45.0 29.1 18.6 44.0 30.7 17.2 43.0 32.4 15.9 42.0 34.3 14.7 60 56.1 34.1 19.8 55.0 35.9 18.4 53.9 37.8 17.1 52.6 40.0 15.8 51.4 42.2 14.6 20 19.5 11.2 20.9 19.1 11.8 19.4 18.7 12.5 18.0 18.3 13.2 16.6 17.8 14.0 15.3 25 24.1 14.0 20.6 23.6 14.8 19.2 23.1 15.6 17.8 22.6 16.5 16.4 22.0 17.4 15.1
40 38.6 22.1 21.0 37.8 23.3 19.5 37.0 24.6 18.0 36.1 26.1 16.6 35.3 27.6 15.3 50 47.6 27.7 20.7 46.7 29.1 19.2 45.7 30.8 17.8 44.6 32.5 16.5 43.6 34.4 15.2 60 58.1 34.2 20.4 57.0 36.0 19.0 55.8 37.9 17.7 54.5 40.1 16.3 53.3 42.3 15.1
CG-PRC012-EN18
Performance
Full Load
Data
Table PD-4. 50 Hz CGWF performance data in Metric units
Evaporator Entering Condenser Water Temperature (C)
Leaving Water Unit 25 30 35
Temperature (C) Size kWo kWi COP kWo kWi COP kWo kWi COP
6 30 87.3 17.0 5.1 83.9 18.7 4.5 80.3 20.7 3.9
8 30 93.5 17.1 5.5 89.9 18.8 4.8 86.1 20.8 4.1
10 30 99.9 17.2 5.8 96.2 18.9 5.1 92.2 20.9 4.4
Notes:
1. Rated in accordance with ARI Standard 550/590-98 with fouling factors of 0.0176 in the evaporator and
0.044 in the condenser.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kWi input is for compressors only.
4. COP = Coefficient of Performance (kWo/total kW). Total kW include compressors and control power.
5. Ratings are based on an evaporator and condenser temperature drop of 5.6°C.
6. Interpolation between points is permissible. Extrapolation is not permitted.
20 70.4 14.2 5.0 67.7 15.5 4.4 64.7 17.1 3.8 20 59.4 11.4 5.2 57.0 12.6 4.5 54.5 14.0 3.9 25 73.4 14.2 5.2 70.5 15.7 4.5 67.5 17.3 3.9
40 117.6 22.4 5.2 112.9 24.8 4.6 108.0 27.5 3.9 50 145.3 28.0 5.2 139.7 30.9 4.5 133.7 34.2 3.9 60 178.4 34.5 5.2 171.7 38.0 4.5 164.0 41.9 3.9 20 63.7 11.4 5.6 61.2 12.6 4.9 58.5 14.0 4.2 25 78.6 14.3 5.5 75.6 15.7 4.8 72.3 17.4 4.2
40 126.0 22.5 5.6 121.0 24.8 4.9 115.8 27.8 4.2 50 155.6 28.2 5.5 149.5 31.0 4.8 143.2 34.3 4.2 60 190.4 34.7 5.5 183.3 38.2 4.8 175.6 42.2 4.2 20 68.1 11.4 6.0 65.4 12.6 5.2 62.7 14.0 4.5 25 84.0 14.3 5.9 80.8 15.8 5.1 77.4 17.5 4.4
40 134.8 22.6 6.0 129.5 24.9 5.2 124.2 27.7 4.5 50 166.4 28.3 5.9 160.1 31.1 5.1 153.4 34.5 4.4 60 203.0 34.9 5.8 195.3 38.4 5.1 187.2 42.4 4.4
Performance
CG-PRC012-EN
19
Performance
Full Load
Data
Performance
Table PD-7. 60 Hz CCAF performance data in English units
Evaporator Entering Condenser Air Temperature (F)
Leaving Water Unit Condenser 85 95 105 115
Temperature (F) Size Size Tons kW EER Tons kW EER Tons kW EER Tons kW EER
42 30 CAUC-C30 28.8 29.1 11.8 27.3 32.2 10.1 25.7 35.7 8.6 24.1 39.6 7.3
44 30 CAUC-C30 29.7 29.4 12.1 28.2 32.6 10.3 26.6 36.1 8.8 24.9 40.0 7.4
46 30 CAUC-C30 30.7 29.7 12.3 29.1 32.9 10.6 27.5 36.4 9.0 25.7 40.4 7.6
Notes:
1. Ratings based on sea level altitude and evaporator fouling factor of 0.00010.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kW input is for compressors only.
4. EER = Energy Efficiency Ratio (Btu/watt-hour). Power inputs include compressors and control power.
5. Ratings are based on an evaporator temperature drop of 10°F.
6. Interpolation between points is permissible. Extrapolation is not permitted.
7. Rated in accordance with ARI Standard 550/590-98.
20 CAUC-C20 19.4 19.5 11.8 18.4 21.6 10.1 17.3 23.9 8.6 16.1 26.6 7.2 20 CAUC-C25 19.7 18.6 12.6 18.7 20.6 10.8 17.6 23.0 9.1 16.5 25.5 7.7 25 CAUC-C25 24.1 24.9 11.5 22.8 27.6 9.9 21.5 30.6 8.4 20.0 34.0 7.0 25 CAUC-C30 24.5 23.4 12.5 23.3 26.0 10.7 22.0 28.9 9.1 20.6 32.1 7.7
30 CAUC-C40 29.2 27.0 12.9 27.8 29.9 11.1 26.3 33.2 9.5 24.7 36.9 8.0 40 CAUC-C40 38.7 38.8 11.9 36.7 43.0 10.2 34.5 47.8 8.6 32.2 53.2 7.2 40 CAUC-C50 39.1 37.4 12.5 37.1 41.6 10.6 35.0 46.2 9.0 32.7 51.4 7.6 50 CAUC-C50 47.6 50.2 11.3 45.1 55.6 9.7 42.5 61.8 8.2 39.7 68.4 6.9 50 CAUC-C60 48.4 47.0 12.3 46.0 52.2 10.5 43.5 58.2 8.9 40.8 64.6 7.6 60 CAUC-C60 56.9 58.4 11.6 54.0 64.8 10.0 50.9 71.8 8.5 47.6 79.8 7.1 60 CAUC-C80 57.5 53.6 12.8 54.7 59.6 11.0 51.8 66.4 9.3 48.6 73.8 7.9 20 CAUC-C20 20.0 19.7 12.1 19.0 21.8 10.4 17.8 24.2 8.8 16.6 26.8 7.4 20 CAUC-C25 20.4 18.8 12.9 19.3 20.8 11.0 18.2 23.2 9.3 17.1 25.7 7.9 25 CAUC-C25 24.9 25.1 11.8 23.6 27.9 10.1 22.2 30.9 8.6 20.7 34.3 7.2 25 CAUC-C30 25.3 23.7 12.7 24.1 26.3 10.9 22.7 29.2 9.3 21.3 32.4 7.9
30 CAUC-C40 30.2 27.2 13.2 28.8 30.2 11.4 27.2 33.5 9.7 25.6 37.2 8.2 40 CAUC-C40 39.9 39.2 12.1 37.8 43.4 10.4 35.6 48.2 8.8 33.3 53.6 7.4 40 CAUC-C50 40.3 37.8 12.7 38.3 42.0 10.9 36.1 46.6 9.2 33.8 51.8 7.8 50 CAUC-C50 49.1 50.6 11.6 46.6 56.2 9.9 43.9 62.2 8.4 41.0 69.0 7.1 50 CAUC-C60 50.0 47.4 12.6 47.5 52.6 10.8 44.9 58.6 9.2 42.2 65.2 7.7 60 CAUC-C60 58.7 58.5 12.0 55.7 65.4 10.2 52.6 72.6 8.7 49.2 80.6 7.3 60 CAUC-C80 59.3 54.0 13.1 56.5 60.0 11.3 53.5 66.8 9.6 50.3 74.4 8.1 20 CAUC-C20 20.7 19.9 12.4 19.6 22.0 10.6 18.4 24.4 9.0 17.2 27.1 7.6 20 CAUC-C25 21.0 18.9 13.2 20.0 21.0 11.3 18.8 23.4 9.6 17.6 25.9 8.1 25 CAUC-C25 25.7 25.4 12.1 24.3 28.2 10.3 22.9 31.2 8.8 21.4 34.6 7.4 25 CAUC-C30 26.2 23.9 13.1 24.9 26.5 11.2 23.5 29.5 9.5 22.0 32.6 8.1
30 CAUC-C40 31.2 27.4 13.6 29.7 30.4 11.7 28.2 33.8 10.0 26.5 37.5 8.4 40 CAUC-C40 41.1 38.6 12.7 39.0 43.8 10.6 36.8 48.8 9.0 34.4 54.0 7.6 40 CAUC-C50 41.6 38.0 13.1 39.5 42.2 11.2 37.3 47.0 9.5 35.0 52.2 8.0 50 CAUC-C50 50.6 51.2 11.8 48.0 56.6 10.1 45.3 62.8 8.6 42.3 69.8 7.2 50 CAUC-C60 51.6 47.8 12.9 49.1 53.2 11.0 46.4 59.0 9.4 43.6 65.6 7.9 60 CAUC-C60 60.5 59.4 12.2 57.5 66.0 10.4 54.3 73.2 8.9 50.9 81.2 7.5 60 CAUC-C80 61.2 54.4 13.4 58.3 60.6 11.5 55.2 67.4 9.8 52.0 75.0 8.3
CG-PRC012-EN20
Performance
Full Load
Data
Table PD-8. 60 Hz CCAF performance data in English units
Evaporator Entering Condenser Air Temperature (F)
Leaving Water Unit Condenser 85 95 105 115
Temperature (F) Size Size Tons kW EER Tons kW EER Tons kW EER Tons kW EER
48 30 CAUC-C30 31.6 30.0 12.6 30.1 33.2 10.8 28.4 36.8 9.2 26.6 40.7 7.8
50 30 CAUC-C30 32.6 30.3 12.8 31.0 33.6 11.0 29.3 37.2 9.4 27.5 41.1 8.0
Notes:
1. Ratings based on sea level altitude and evaporator fouling factor of 0.00010.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kW input is for compressors only.
4. EER = Energy Efficiency Ratio (Btu/watt-hour). Power inputs include compressors and control power.
5. Ratings are based on an evaporator temperature drop of 10°F.
6. Interpolation between points is permissible. Extrapolation is not permitted.
7. Rated in accordance with ARI Standard 550/590-98.
20 CAUC-C20 21.3 20.1 12.6 20.2 22.2 10.8 19.0 24.6 9.2 17.7 27.3 7.7 20 CAUC-C25 21.7 19.1 13.5 20.6 21.2 11.6 19.4 23.6 9.8 18.2 26.2 8.3 25 CAUC-C25 26.5 25.7 12.3 25.1 28.4 10.5 23.7 31.5 9.0 22.1 34.9 7.6 25 CAUC-C30 27.0 24.1 13.4 25.7 26.7 11.5 24.3 29.6 9.8 22.8 32.9 8.3
30 CAUC-C40 32.2 27.7 13.9 30.7 30.7 11.9 29.1 34.1 10.2 27.4 37.8 8.7 40 CAUC-C40 42.4 40.0 12.6 40.2 44.4 10.8 37.9 49.2 9.2 35.5 54.6 7.8 40 CAUC-C50 42.8 38.4 13.3 40.7 42.6 11.4 38.5 47.4 9.7 36.1 52.6 8.2 50 CAUC-C50 52.2 51.6 12.1 49.5 57.2 10.3 46.7 63.4 8.8 43.7 70.2 7.4 50 CAUC-C60 53.2 48.2 13.2 50.6 53.6 11.3 47.9 59.6 9.6 45.0 66.2 8.1 60 CAUC-C60 62.4 60.2 12.4 59.3 66.6 10.6 56.0 74.0 9.1 52.5 82.0 7.7 60 CAUC-C80 63.1 54.8 13.8 60.2 61.8 11.8 57.0 67.8 10.1 53.7 75.4 8.5 20 CAUC-C20 21.9 20.3 12.8 20.8 22.5 11.0 19.6 24.9 9.4 18.3 27.6 7.9 20 CAUC-C25 22.3 19.3 13.8 21.2 21.4 11.8 20.1 23.8 10.1 18.8 26.4 8.5 25 CAUC-C25 27.3 25.9 12.6 25.9 28.7 10.8 24.4 31.8 9.2 22.9 35.2 7.8 25 CAUC-C30 27.9 24.3 13.7 26.5 26.9 11.8 25.1 29.9 10.0 23.5 33.1 8.5
30 CAUC-C40 33.2 27.9 14.2 31.7 30.9 12.2 30.0 34.3 10.4 28.3 38.1 8.9 40 CAUC-C40 43.6 40.4 12.9 41.4 44.8 11.0 39.1 49.6 9.4 36.6 55.0 8.0 40 CAUC-C50 44.1 38.8 13.6 42.0 43.0 11.7 39.7 47.8 9.9 37.2 53.0 8.4 50 CAUC-C50 53.7 52.2 12.3 51.0 57.8 10.5 48.1 64.0 9.0 45.1 71.0 7.6 50 CAUC-C60 54.8 48.6 13.5 52.2 54.0 11.5 49.4 60.0 9.8 46.4 66.6 8.3 60 CAUC-C60 64.3 60.8 12.6 61.1 67.4 10.8 57.8 74.6 9.3 54.2 82.8 7.8 60 CAUC-C80 65.1 55.4 14.0 62.1 61.4 12.1 58.8 68.4 10.3 55.4 76.0 8.7
Performance
CG-PRC012-EN
21
Performance
Full Load
Data
Performance
Table PD-9. 60 Hz CCAF performance data in Metric units
Evaporator Entering Condenser Air Temperature (C)
Leaving Water Unit Condenser 30 35 40 45
Temperature (C) Size Size kWo kWi COP kWo kWi COP kWo kWi COP kWo kWi COP
6 30 CAUC-C30 103.0 29.6 3.5 98.2 32.4 3.0 93.1 35.6 2.6 87.9 39.1 2.2
8 30 CAUC-C30 109.1 30.2 3.6 104.0 33.0 3.1 98.9 36.2 2.7 93.2 39.8 2.3
10 30 CAUC-C30 115.2 30.7 3.7 110.1 33.7 3.3 104.6 36.9 2.8 98.9 40.4 2.4
Notes:
1. Ratings based on sea level altitude and evaporator fouling factor of 0.0176.
2. Consult Trane representative for performance at temperatures outside of the ranges shown.
3. kWi input is for compressors only.
4. COP = Coefficient of Performance (kWo/total kW). Total kW include compressors and control power.
5. Ratings are based on an evaporator temperature drop of 5.6°C.
6. Interpolation between points is permissible. Extrapolation is not permitted.
7. Rated in accordance with ARI Standard 550/590-98.
20 CAUC-C20 69.4 19.8 3.5 66.2 21.7 3.0 62.5 23.8 2.6 58.7 26.2 2.2 20 CAUC-C25 70.7 18.9 3.7 67.3 20.7 3.2 63.8 22.9 2.8 60.3 25.1 2.4 25 CAUC-C25 86.2 25.3 3.4 82.1 27.8 2.9 77.8 30.5 2.5 73.1 33.5 2.2 25 CAUC-C30 87.8 23.8 3.7 84.0 26.2 3.2 79.7 28.8 2.8 75.2 31.7 2.4
30 CAUC-C40 104.7 27.4 3.8 100.3 30.1 3.3 95.3 33.1 2.9 90.2 36.4 2.5 40 CAUC-C40 138.4 39.5 3.5 131.9 43.3 3.0 124.8 47.6 2.6 117.5 52.4 2.2 40 CAUC-C50 140.0 38.1 3.7 133.6 41.9 3.2 126.8 46.0 2.7 119.5 50.7 2.3 50 CAUC-C50 170.2 51.0 3.3 162.3 56.0 2.9 153.8 61.5 2.5 144.8 67.5 2.1 50 CAUC-C60 173.5 47.8 3.6 165.7 52.5 3.1 157.6 57.9 2.7 149.0 63.7 2.3 60 CAUC-C60 203.5 59.2 3.4 194.1 65.2 3.0 184.2 71.6 2.6 173.6 78.7 2.2 60 CAUC-C80 206.0 54.5 3.8 197.0 59.9 3.3 187.6 66.1 2.8 177.5 72.7 2.4 20 CAUC-C20 73.5 20.2 3.6 70.0 22.1 3.1 66.2 24.3 2.7 62.3 26.7 2.3 20 CAUC-C25 74.8 19.2 3.9 71.5 21.1 3.4 67.7 23.3 2.9 63.9 25.5 2.5 25 CAUC-C25 91.3 25.8 3.5 86.8 28.3 3.1 82.4 31.0 2.6 77.6 34.1 2.3 25 CAUC-C30 93.3 24.3 3.8 89.1 26.6 3.3 84.6 29.3 2.9 79.9 32.1 2.5
30 CAUC-C40 111.1 27.8 4.0 106.3 30.5 3.5 101.4 33.6 3.0 96.1 36.9 2.6 40 CAUC-C40 146.1 39.5 3.7 139.3 44.0 3.1 132.2 48.5 2.7 124.6 53.2 2.3 40 CAUC-C50 148.0 38.6 3.8 141.3 42.4 3.3 134.3 46.7 2.9 126.9 51.4 2.5 50 CAUC-C50 179.9 52.0 3.4 171.5 56.9 3.0 162.8 62.5 2.6 153.3 68.7 2.2 50 CAUC-C60 183.7 48.5 3.8 175.6 53.4 3.3 167.0 58.7 2.8 158.0 64.6 2.4 60 CAUC-C60 215.1 60.4 3.5 205.4 66.3 3.1 195.1 72.8 2.7 184.3 80.0 2.3 60 CAUC-C80 217.9 55.3 3.9 208.6 61.0 3.4 198.6 67.0 3.0 188.4 73.8 2.5 20 CAUC-C20 77.4 20.6 3.7 73.8 22.6 3.3 70.0 24.7 2.8 65.9 27.1 2.4 20 CAUC-C25 78.9 19.6 4.0 75.4 21.5 3.5 71.9 23.6 3.0 67.8 25.9 2.6 25 CAUC-C25 96.4 26.2 3.7 92.0 28.8 3.2 87.2 31.6 2.7 82.4 34.6 2.4 25 CAUC-C30 98.7 24.6 4.0 94.2 27.0 3.5 89.7 29.7 3.0 84.7 32.5 2.6
30 CAUC-C40 117.5 28.3 4.1 112.7 31.0 3.6 107.3 34.0 3.1 101.8 37.4 2.7 40 CAUC-C40 154.0 40.9 3.7 147.0 44.9 3.3 139.6 49.2 2.8 131.7 54.1 2.4 40 CAUC-C50 156.0 39.3 3.9 149.3 43.1 3.4 142.0 47.4 3.0 134.0 52.1 2.6 50 CAUC-C50 189.7 52.9 3.6 181.1 57.9 3.1 171.8 63.5 2.7 162.3 69.8 2.3 50 CAUC-C60 193.9 49.3 3.9 185.6 54.1 3.4 176.6 59.6 3.0 167.1 65.4 2.5 60 CAUC-C60 227.2 61.6 3.7 216.9 67.6 3.2 206.4 74.1 2.8 195.0 81.4 2.4 60 CAUC-C80 230.4 56.1 4.1 220.8 61.6 3.6 210.2 67.9 3.1 199.4 74.7 2.7
CG-PRC012-EN22
Performance
Part Load
Data
Performance
Table PD-5. Part-load performance for CGWF 20-60 ton – 60 Hz in English units
Unit Size 100% IPLV
20 kW 15.2 20.3
25 kW 19.0 20.5
30 kW 22.8 20.3
40 kW 30.1 20.7
50 kW 37.6 19.6
60 kW 46.5 19.8
Notes:
1. IPLV values are rated in accordance with ARI Standard 550/590-98.
2. EER and IPLV values include compressor and control kW.
3. kW input is for compressors only.
Tons 19.9
EER 15.5
Tons 24.5
EER 15.4
Tons 29.2
EER 15.3
Tons 39.4
EER 15.6
Tons 48.6
EER 15.4
Tons 59.4
EER 15.2
Table PD-6. Part-load performance for CGWF 20-60 ton – 50 Hz in English units
Unit Size 100% IPLV
20 kW 12.4 21.0
25 kW 15.5 20.9
30 kW 18.5 20.7
40 kW 24.5 21.3
50 kW 30.6 20.3
60 kW 37.6 20.4
Notes:
1. IPLV values are rated in accordance with ARI Standard 550/590-98.
2. EER and IPLV values include compressor and control kW.
3. kW input is for compressors only.
Tons 16.7
EER 16.1
Tons 20.6
EER 16.0
Tons 24.5
EER 15.9
Tons 33.0
EER 16.2
Tons 40.8
EER 16.0
Tons 50.1
EER 16.0
CG-PRC012-EN
23
Performance
Adjustment
Data
Figure PAF-1. Ethylene glycol performance adjustment factors
Factors
Figure PAF-2. Propylene glycol performance adjustment factors
CG-PRC012-EN24
Performance
Adjustment
Data
Figure PAF-3. Ethylene glycol and propylene glycol solution freezing points
Factors
CG-PRC012-EN
Table PAF-1. Pressure drop correction factor
Leaving
Water Percent of Ethylene Glycol
Temperature 0 10 20 30 40 50
0 NA NA NA NA 1.50 1.60 10 NA NA NA 1.38 1.46 1.55 20 NA NA 1.26 1.34 1.42 1.51 30 NA 1.15 1.22 1.30 1.38 1.47 40 1.00 1.12 1.19 1.26 1.34 1.42 50 1.00 1.09 1.16 1.23 1.31 1.39 60 1.00 1.05 1.09 1.12 1.16 1.21
Table PAF-2. Pressure drop correction factor
Leaving
Water Percent of Propylene Glycol
Temperature 0 10 20 30 40 50
0 NA NA NA NA 1.63 1.90 10 NA NA NA 1.42 1.55 1.74 20 NA NA 1.24 1.34 1.46 1.62 30 NA 1.11 1.19 1.28 1.39 1.53 40 1.00 1.07 1.15 1.23 1.33 1.45 50 1.00 1.04 1.11 1.19 1.28 1.39 60 1.00 1.00 1.03 1.08 1.13 1.20
25
Performance Data
Chart PD-1. CGWF evaporator
Pressure Drops
Chart PD-2. CGWF condenser
CG-PRC012-EN26
Electrical Data and Connections
Table E-1. Electrical data for CGWF water-cooled chillers
Unit Rated Minimum Maximum Recommended RLA LRA Size Voltage Circuit Ampacity Fuse Size Dual Element Fuse Size Quantity Each Each kW
20 460/60 32 45 40 14 117 0.16
25 460/60 43 60 60 1-15 23/14 178/117 0.16
30 460/60 52 70 70 23 178 0.16
40 460/60 60 70 70 14 117 0.24
50 460/60 80 100 100 2-15 23/14 178/117 0.24
60 460/60 98 110 110 23 178 0.24
208-230/60 77 110 100 34 251 0.16
380/60 38 50 50 2-10 17 142 0.16
575/60 27 40 40 12 94 0.16 400/50 32 50 50 14 110 0.16
208-230/60 99 150 125 52/34 376/251 0.16
380/60 51 70 70 1-10 27/17 215/142 0.16
575/60 35 50 45 18/12 143/94 0.16 400/50 42 50 45 22/14 174/110 0.16
208-230/60 117 150 150 52 376 0.16
380/60 61 80 80 2-15 27 215 0.16
575/60 41 50 50 18 143 0.16 400/50 50 80 80 22 174 0.16
208-230/60 145 175 175 34 251 0.24
380/60 72 80 90 4-10 17 142 0.24
575/60 51 60 70 12 94 0.24 400/50 60 90 90 14 110 0.24
208-230/60 185 225 225 52/34 376/251 0.24
380/60 95 110 110 2-10 27/17 215/142 0.24
575/60 65 80 80 18/12 143/94 0.24 400/50 78 110 125 22/14 174/110 0.24
208-230/60 221 250 250 52 376 0.24
380/60 115 125 150 4-15 27 215 0.24
575/60 77 90 90 18 143 0.24 400/50 94 125 150 22 174 0.24
Table E-2. Electrical data for high temperature condenser CGWF chillers and CCAF compressor chillers
Unit Rated Minimum Maximum Recommended RLA LRA Size Voltage Circuit Ampacity Fuse Size Dual Element Fuse Size Quantity Each Each kW
20 380/60 45 60 60 2-10 20 142 0.16
25 380/60 59 80 80 1-10 31/20 215/142 0.16
30 380/60 70 100 90 2-15 31 215 0.16
40 380/60 85 100 100 4-10 20 142 0.24
50 380/60 110 125 150 2-10 31/20 215/142 0.24
60 380/60 132 150 150 4-15 31 215 0.24
Notes:
1. Minimum circuit ampacity is 125% of the largest compressor RLA, plus 100% of the remaining compressor(s) RLA, per NEC 440-32 and NEC 440-33.
2. Maximum fuse size is 225% of the largest compressor RLA, plus 100% of the remaining compressor(s) RLA, per NEC 440-33.
3. Recommended dual element fuse size is 175% of the largest compressor RLA, plus 100% of remaining compressor(s) RLA, per NEC 440-33.
4. Use copper conductors only.
5. Voltage Utilization Range: Rated Voltage Utilization Range
6. Local codes may take precedence.
7. If unit is ordered with the High Condenser Entering Water Temperature Range (90-130), use CCAF electrical information.
208-230/60 88 125 110 39 251 0.16
460/60 38 50 50 17 117 0.16 575/60 32 45 40 14 94 0.16 400/50 38 50 50 17 117 0.16
208-230/60 112 150 150 58/39 376/251 0.16
460/60 50 70 70 1-15 26/17 178/117 0.16 575/60 40 60 60 21/14 143/94 0.16 400/50 48 70 70 25/17 178/117 0.16
208-230/60 131 175 175 58 376 0.16
460/60 59 80 80 26 178 0.16 575/60 47 60 60 21 143 0.16 400/50 56 80 80 25 178 0.16
208-230/60 166 200 200 39 251 0.24
460/60 72 80 90 17 117 0.24 575/60 60 70 70 14 94 0.24 400/50 72 80 90 17 117 0.24
208-230/60 209 250 250 58/39 376/251 0.24
460/60 93 110 110 2-15 26/17 178/117 0.24 575/60 75 90 90 21/14 143/94 0.24 400/50 90 110 110 25/17 178/117 0.24
208-230/60 247 300 300 58 376 0.24
460/60 111 125 125 26 178 0.24 575/60 89 110 100 21 143 0.24 400/50 106 125 125 25 178 0.24
208-230/60 188-253 380/60 342-418 460/60 414-506 575/60 517-633 400/50 360-440
Unit Wiring Data Compressor Controls
Unit Wiring Data Compressor Controls
CG-PRC012-EN
27
Electrical Data
Typical Wiring
and Connections
Diagram
CG-PRC012-EN28
Electrical Data
Typical Wiring
and Connections
Diagram
CG-PRC012-EN
29
Electrical Data and Connections
Field Layout
CG-PRC012-EN30
Electrical Data and Connections
Field Layout
CG-PRC012-EN
31
Dimensional Data
CGWF 20-30 Ton
Size A B C D E F G H 20 Ton 2" 8 1/2" 4'-8" 1'-3 3/8" 4 1/8" 8 5/8" 5 5/8" 2' 7 3/8"
25 Ton 2" 8 1/2" 4'-8" 1'-3 3/8" 4 1/8" 8 5/8" 5 5/8" 2' 7 3/8"
30 Ton 2 1/2" 7 3/4" 4'-6 1/2" 1'-5 3/8" 2 1/4" 12" 8" 2' 8 3/16"
Notes:
1. Dimensions in ( ) are in millimeters.
2. Dimensional tolerance ± 1/4” (6.4).
3. These dimensions for left hand condenser connections.
(51) (216) (1423) (391) (105) (218) (143) (797)
(51) (216) (1423) (391) (105) (218) (143) (797)
(64) (197) (1384) (441) (57) (305) (203) (818)
CG-PRC012-EN32
Dimensional Data
CGWF 40-50 Ton
CG-PRC012-EN
Size A B C D E 40 Ton 2 1/2" 1'-3 3/4" 6'-5 1/2" 1'-4 1/4" 4 3/8"
50 Ton 3" 1'-3 1/2" 6'-5" 1'-6 1/8" 2 1/2"
Notes:
1. Dimensions in ( ) are in millimeters.
2. Dimensional tolerance ± 1/4” (6.4).
3. These dimensions for left hand condenser connections.
(64) (400) (1968) (413) (111)
(76) (394) (1956) (480) (64)
33
Dimensional Data
CGWF 60 Ton
CG-PRC012-EN34
Dimensional Data
CCAF 20-30 Ton
CG-PRC012-EN
Unit Size A B C D E F 20 Ton 8 1/2” 3’-11 1/2” 2” 2’-0” 1’-3 1/2” 3’-3” 25 Ton 8 1/2” 3’-11 1/2” 2” 1’-11 3/4” 1’-3 1/2” 3’-10” 30 Ton 7 3/4” 3’-10 3/4” 2 1/2” 2’-1 7/8” 1’-5 3/8” 3’-10”
Unit Size A B C D E F 20 Ton 216 1207 51 610 394 1041 25 Ton 216 1207 51 603 394 1041 30 Ton 197 1187 64 657 441 1168
Notes:
1. Add 3/4” (19 mm) for units with insulation.
2. Dimensional tolerance ± 1/4” (6.4).
3. Tube installation at either end of evaporator.
English Dimensions
Metric Dimensions (mm)
35
Dimensional Data
CCAF 40-60 Ton
Unit Size A B C D E F 40 Ton 5’-1 3/4” 1’-3 3/4” 1’-11 1/4” 2 1/2” 3’-5” 1’-4 1/4” 50 Ton 5’-1 1/2” 1’-3 1/2” 2’-1 1/8” 3” 3’-10” 1’-6 1/8” 60 Ton 5’-1 1/2” 1’-3 1/2” 2’-0 7/8” 3” 3’-10” 1’-6 1/8”
Unit Size A B C D E F 40 Ton 1568 400 591 64 1041 413 50 Ton 1562 394 638 76 1168 480 60 Ton 1562 394 632 76 1168 460
Notes:
1. Dimensions in ( ) are in millimeters.
2. Add 3/4” (19 mm) for units with insulation.
3. Dimensional tolerance ± 1/4” (6.4).
4. Tube installation at either end of evaporator.
English Dimensions
Metric Dimensions (mm)
CG-PRC012-EN36
Weights
Table W-1. Weights, CGWF chillers
Unit 20 25 30 40 50 60 Operating Wt. (pounds) 1694 1757 2249 2746 2977 3905
Shipping Wt. (pounds) 1522 1600 2014 2366 2626 3376
Table W-2. Weights, CCAF compressor chillers
Unit 20 25 30 40 50 60 Operating Wt. (pounds) 1004 1079 1274 1509 1808 1982
Shipping Wt. (pounds) 1430 1605 1836 1792 2166 2494
(kilogram) 768 797 1020 1246 1350 1771
(kilogram) 690 726 914 1073 1191 1531
(kilogram) 456 490 579 685 821 900
(kilogram) 649 729 834 814 984 1133
CG-PRC012-EN
37
Mechanical Specifications
General
All scroll chillers are factory tested and monitored for power and control operation (CGWF only). CGWF units ship with a full operating charge of refrigerant and oil. CCAF units ship with a full operating charge of oil. Exposed surfaces are painted with an air-dry beige primer-finisher prior to shipment.
Compressor-Motor
Direct-drive, hermetic, 3600 rpm, 60 Hz [3000 rpm, 50 Hz] fixed compression, scroll compressors (20 to 30 tons - two compressors; 40 to 60 tons - four compressors). Each compressor has: centrifugal oil pump, oil level sightglass, oil charging valve, two point lubrication for each motor bearing, flooded lubrication for the journal and thrust bearings, and a check valve on the scroll discharge port.
Motor is suction gas-cooled, hermetically sealed, two-pole, squirrel cage induction type.
Evaporator
Shell and tube design with seamless copper tubes roller expanded into tube sheets. Designed, tested and stamped in accordance with ASME Code for refrigerant side working pressure of 300 psig. Water side working pressure is 300 psig for CGWF 20-50 and CCAF 20-60, 215 psig for CGWF 60. One water pass with a series of internal baffles. Each shell includes drain connections, entering and leaving temperature sensors, and ¾ inch Armaflex II (or equal) insulation (K= 0.26).
Condenser (CGWF only)
Shell and tube design with seamless internally enhanced copper tubes. Designed, tested and stamped in accordance with ASME Code (CGWF 60 only) the refrigerant side working pressure of 450 psig. Water side working pressure is 300 psig for CGWF 20-50, 150 psig for CGWF 60. Two pass construction with six-inch diameter shell (20 to 30 tons). One pass construction with two separate condensers connected in series (40 to 60 tons). Each condenser includes a subcooler circuit. Tubes are cleanable and replaceable.
Refrigerant Circuit
Each refrigeration circuit shall be completely independent and shall include liquid line and discharge line service valves, filter dryer, combination moisture indicator-sightglass, charging port, insulated suction line, liquid line solenoid valve and thermal expansion valve.
Isolation valves provide means of isolating refrigerant charge in either the high or low pressure side while servicing. One refrigerant circuit on 20 to 30 tons; two refrigerant circuits on 40 to 60 tons.
Condenserless units (CCAF) shall be equipped with discharge check valve and moisture indicator sightglass.
Unit Controls (CH530)
The microprocessor-based control panel is factory-installed and factory-tested. Chilled water reset based on return water is standard.
The CH530 microprocessor automatically acts to prevent unit shutdown due to abnormal operating conditions associated with low evaporator refrigerant temperature, high condensing temperature, and/or motor current overload. If an abnormal operating condition continues and the protective limit is reached, the machine should shut down.
The panel includes machine protection shutdown requiring following conditions:
• low evaporator refrigerant temperature and pressure
• high condenser refrigerant pressure
• critical sensor or detection circuit faults
• motor current overload
• high compressor discharge temperature
• lost communication between main processor and LLID
• electrical distribution faults: current loss or phase reversal
• external and local emergency stop
• starter contactor interrupt failure
The panel also includes machine protection shutdown with
reset
for the following correctable
conditions:
• power loss
• loss of evaporator or condenser water flow
When a fault is detected, the control system conducts more than 60 diagnostic checks and displays results. The display will identify the fault, indicate date, time, and operating mode at time of occurrence, and provide type of reset required and a help message. The diagnostic history will display the last ten diagnostics with their times and dates of occurrence.
manual reset
automatic
for the
CG-PRC012-EN38
Mechanical Specifications
DynaView Panel
Factory-mounted to the control panel door, the operator interface has an LCD touch-screen display for operator input and information output. This interface provides access to the following information: evaporator report, condenser report, compressor report, ASHRAE Guideline 3 report, main, chiller, feature setting, manual control setting and display setting. All diagnostics and messages are displayed in “clear language.”
Data contained in available reports includes:
• water and air temperatures
• refrigerant pressure and temperatures
• flow switch status
• compressor starts and run-time
All necessary settings and setpoints are programmed into the microprocessor­based controller via the operator interface. The controller is capable of receiving signals contemporaneously from a variety of control sources, in any
combination, and priority order of control sources can be programmed. The control source with priority determines active setpoints via the signal it sends to the control panel. Control sources may be:
• the local operator interface (standard)
• a 4-20 mA or 2-10 VDC signal from an external source (interface optional; control source not supplied)
• Trane Tracer Summit (interface optional)
• LonTalk LCI-C (interface optional; control source not supplied)
Starter
The unit control panel contains both a control section and a starter section. The panel is a painted, NEMA 1 enclosure. The starter section contains: top access for power wiring, single point power hook-up, three-phase solid-state overload protection, customer wired grounding lug, and control power transformer with fused protection.
system
CG-PRC012-EN
39
Trane A business of American Standard Companies www.trane.com
Literature Order Number
File Number
Supersedes
Stocking Location
CG-PRC012-EN
CG-PRC012-EN 104
CG-PRC011-EN 102
Inland
For more information contact your local sales office or e-mail us at comfort@trane.com
Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.
Loading...