RLC-PRC006Q-EN_07102018.pdf

Air-Cooled Series R® Chillers

Model RTAC

140 to 500 nominal tons (60 Hz)

July 2018 RLC-PRC006Q-EN

Product Catalog

©2018 Ingersoll Rand RLC-PRC006Q-EN

Introduction

Like its chillers, Trane wants its relationships with customers to last. Trane is interested in maintaining long term, loyal relationships. This perspective means the point in time that a customer purchases a chiller is the beginning of a relationship, not the end. Your business is important, but your satisfaction is paramount.

The RTAC offers high reliability coupled with proven Series R® performance.

The Series R® Model RTAC is an industrial grade design built for both the industrial and commercial markets. It is ideal for schools, hospitals, retailers, office buildings, internet service providers and manufacturing facilities.

Copyright

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

Trademarks

All trademarks referenced in this document are the trademarks of their respective owners.

Revision History

• Updated back cover AHRI logo.

• Updated electrical data and customer wire selection tables.

• Updated general data tables for min/max water flow rates with new tube supplier information.

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Table of Contents

Introduction

Features and Benefits

Application Considerations

Model Number Descriptions

General Data

Controls

Electrical Data

Electrical Connection

Dimensions

Weights

Mechanical Specifications

Options

Features and Benefits

World Class Energy Efficiency

The importance of energy efficiency cannot be understated. Fortunately, ASHRAE has created a guideline emphasizing its importance. Nonetheless, energy is often dismissed as an operational cost over which the owner has little control. That perception results in missed opportunities for energy efficiency, reduced utility bills, and higher profits. Lower utility bills directly affect profitability. Every dollar saved in energy goes directly to the bottom line. Trane's RTAC is one way to maximize your profits.

ASHRAE Standard 90.1 and Executive Order

All Trane air-cooled chillers meet the new efficiency levels mandated by ASHRAE Standard 90.1.

This new standard requires higher efficiencies than past technologies can deliver. The US Federal Government has adopted standard 90.1 and, in some cases, requires even higher efficiencies.

Federal Executive Order mandates energy consuming devices procured must be in the top 25% of their class. In the case of chillers, that product standard is ASHRAE 90.1. Trane's RTAC meets and exceeds the efficiency requirements of 90.1, while the high and extra efficiency RTAC can meet the “stretch goals” of Executive Order.

Precise Capacity Control

Trane's patented unloading system allows the compressor to modulate infinitely and exactly match building loads. At the same time chilled water temperatures will be maintained within +/- 1/2ºF (0.28°C) of setpoint. Screw or scroll chillers with stepped capacity control do well to maintain chilled water temperatures within 2ºF (1.1°C) of setpoint. Stepped control also results in over cooling because rarely does the capacity of the machine match the building load. The result can be 10% higher energy bills. Trane's RTAC optimizes the part load performance of your machine for energy efficiency, precise control for process applications, and your personal comfort regardless of the weather outside.

Excellent Reliability

A buildings environment is expected to be comfortable. When it is, no one says a word. If it's not… that's a different story. The same is true with chillers. No one ever talks about chillers, yet alone compressors, until they fail, and tenants are uncomfortable and productivity is lost. Trane's helical rotary compressors have been designed and built to stay running when you need them.

Fewer moving parts

Trane's helical rotary compressors have only two major rotating parts: the male and female rotor.

A reciprocating compressor can have more than 15 times that number of critical parts. Multiples of pistons, valves, crankshafts, and connecting rods in a reciprocating unit all represent different failure paths for the compressor. In fact, reciprocating compressors can easily have a failure rate four times of a helical rotor. Combine that with two to three reciprocating compressors for each helical rotary compressor on chillers of equal tonnage, and statistics tell you it's a matter of time before you lose a reciprocating compressor.

Robust components

Helical rotary compressors are precisely machined using state of the art processes from solid metal bar stock. Tolerances are maintained within a micron or less than a tenth of the diameter of a human hair. The resulting compressor is a robust yet highly sophisticated assembly capable of ingesting liquid refrigerant without risk of damage.

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Condenser coils

Trane's condenser coils are manufactured with the same philosophy as the compressors; they're built to last. Even though manufacturing processes have allowed thinner and thinner materials in their assembly, with obvious material and manufacturing savings, Trane's coil material did not change with the RTAC generation of air cooled chillers. Substantial condenser fins, that do not require additional coating in non-corrosive environments, contribute to the highest reliability standards for air-cooled chillers in the industry.

Superior Control

The Adaptive Control™ microprocessor system enhances the air-cooled Series R® chiller by providing the very latest chiller control technology. With the Adaptive Control microprocessor, unnecessary service calls and unhappy tenants are avoided. The unit is designed not to trip or unnecessarily shut down. Only when the Tracer® chiller controllers have exhausted all possible corrective actions and the unit is still violating an operating limit will the chiller shut down. Controls on other equipment typically shut down the chiller, usually just when it is needed the most.

For example: A typical five year old chiller with dirty coils might trip out on high pressure cutout on a 100°F (38°C) day in August. A hot day is just when comfort cooling is needed the most. In contrast, the air-cooled Series R® chiller with an Adaptive Control microprocessor will stage fans on, modulate electronic expansion valves, and modulate slide valve positions as the chiller approaches a high pressure cutout, thereby keeping the chiller online when you need it the most.

Simple Installation

• Factory Installed Flow Switch. Installed in the optimum location in the piping for reduced chiller installation cost and superior flow sensing, reducing the potential for nuisance trips.

• Close Spacing Installation. The air-cooled Series R™ Chiller has the tightest recommended side clearance in the industry, four feet for maximum performance. In situations where equipment must be installed with less clearance than recommended, which frequently occurs in retrofit applications, restricted airflow is common. Conventional chillers may not work at all.

However, the air-cooled Series R chiller with Adaptive Control™ microprocessor will make as much chilled water as possible given the actual installed conditions, stay on line during unforeseen abnormal conditions, and optimize the unit performance. Consult your Trane sales engineer for more details.

• Factory Testing Means Trouble Free Startup. All air-cooled Series R® chillers are given a complete functional test at the factory. This computer based test program completely checks the sensors, wiring, electrical components, microprocessor function, communication capability, expansion valve performance and fans. In addition, each compressor is run and tested to verify capacity and efficiency. Where applicable, each unit is factory preset to the customer's design conditions; an example would be leaving liquid temperature setpoint. The result of this test program is that the chiller arrives at the job site fully tested and ready for operation.

• Factory Installed and Tested Controls/Options Speed Installation. All Series R® chiller options, including main power supply disconnect, low ambient control, ambient temperature sensor, low ambient lockout, communication interface and ice making controls, are factory installed and tested. Some manufacturers send accessories in pieces to be field installed. With Trane, the customer saves on installation expense and has assurance that ALL chiller controls/ options have been tested and will function as intended.

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Unit Performance Testing

The AHRI Certification Program has had a certification program covering air-cooled water chillers for many years. With this in mind, customers may ask, “Do I need to factory performance test my chiller?”

Trane began promoting factory performance tests for water-cooled water chillers in 1984 for the same reasons it is valid today for air-cooled water chillers, to show we stand behind the products we design and build.

The benefits of a performance test include verification of performance, prevention of operational problems, and assurance of a smooth startup. Only a performance test conducted in a laboratory or laboratory grade facility will confirm both performance and operation of a specific chiller.

While most factory performance tests go smoothly, should problems occur, Trane personnel can quickly correct them and the chiller will ship as specified. Job site diagnosis, ordering of parts, and waiting for delivery of replacement components is significantly reduced.

A factory performance test reduces startup time, thereby saving job site expense. A chiller that has been tested is operation and performance proven. This allows the installing contractor to concentrate on proper electrical wiring and water piping, and the service technicians to concentrate on proper refrigerant charge, safeties diagnosis and initial logging of the chiller. Means of obtaining full load on the chiller and proving its performance do not have to be determined by engineers or contractors, thus saving time. The certified test report documents performance for the unit as built.

In addition, factory testing significantly reduces commissioning time and risk by reintroducing manufacturer responsibility, where its mitigation should reside.

When a factory performance test is requested, the test can be conducted at the specified design conditions for all packaged chillers. The test facility has the capability to control ambient test conditions to assure our customers that our chillers will perform as predicted.

Rapid Restart™ testing is also available to demonstrate the chiller’s rapid restart capabilities for disaster relief. While the chiller is operating at customer specified full load conditions, power to the chiller is cut and the customer can witness how quickly the chiller will return to full load.

For more information on test performance testing, see brochure RF-SLB012-EN.

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Application Considerations

Important

Certain application constraints should be considered when sizing, selecting and installing Trane air-cooled Series R® chillers. Unit and system reliability is often dependent upon proper and complete compliance with these considerations. When the application varies from the guidelines presented, it should be reviewed with your local Trane sales engineer.

Unit Sizing

Unit capacities are listed in the performance data section. Intentionally over sizing 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 over sizing is desired, consider using multiple units.

Water Treatment

Dirt, scale, products of corrosion and other foreign material will adversely affect heat transfer between the water and system components. Foreign matter in the chilled water system can also increase pressure drop and consequently, reduce water flow. Proper water treatment must be determined locally, depending on the type of system and local water characteristics. Neither salt nor brackish water is recommended for use in Trane air-cooled Series R® chillers. Use of either will lead to a shortened life to an indeterminable degree. The Trane Company encourages the employment of a reputable water treatment specialist, familiar with local water conditions, to assist in this determination and in the establishment of a proper water treatment program.

Effect Of Altitude On Capacity

Air-cooled Series R® chiller capacities given in the performance data tables are for use at sea level.

At elevations substantially above sea level, the decreased air density will reduce condenser capacity and, therefore, unit capacity and efficiency.

Ambient Limitations

Trane air-cooled Series R® chillers are designed for year round operation over a range of ambient temperatures. The Model RTAC chiller will operate as standard in ambient temperatures of 25 to 115°F (-4 to 46°C). With the low ambient option, these units will operate down to 0°F (-18°C). If an ambient temperature as high as 125°F (51°C) is the basis for design, the high ambient option will permit the chiller to run without going into a limiting condition. For installations in areas with large ambient differences, the wide ambient option will allow the chiller to perform uninhibited from 0 to 125°F (-18 to 51°C).

Water Flow Limits

The minimum and maximum water flow rates are given in the General Data tables. Evaporator flow rates below the tabulated values will result in laminar flow causing freeze up problems, scaling, stratification and poor control. Flow rates exceeding those listed may result in excessive tube erosion.

Note: Flow rates in General Data tables are for water only. They do not include glycol.

Leaving Water Temperature Limits

Trane air-cooled Series R chillers have three distinct leaving water categories: standard, low temperature, and ice making. The standard leaving solution temperature range is 40 to 65°F (4.4 to 15.6°C). Low temperature machines produce leaving liquid temperatures less than 40°F (4.4°C).

Since liquid supply temperature setpoints less than 40°F (4.4°C) result in suction temperatures at or below the freezing point of water, a glycol solution is required for all low temperature machines.

Ice making machines have a leaving liquid temperature range of 20 to 60°F (-6.7 to 15.6°C). Ice making controls include dual setpoint controls and safeties for ice making and standard cooling capabilities. Consult your local Trane sales engineer for applications or selections involving low

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temperature or ice making machines. The maximum water temperature that can be circulated through an evaporator when the unit is not operating is 108°F (42°C).

Flow Rates Out of Range

Many process cooling jobs require flow rates that cannot be met with the minimum and maximum published values for the Model RTAC evaporator. A simple piping change can alleviate this problem. For example: A plastic injection molding process requires 80 gpm (5.1 l/s) of 50°F (10°C) water and returns that water at 60°F (15.6°C). The selected chiller can operate at these temperatures, but has a minimum flow rate of 120 gpm (7.6 l/s). The system layout in Figure A1 can satisfy the process.

Flow Control

Trane requires the chilled water flow control in conjunction with the air-cooled Series R® chiller to be done by the chiller. This will allow the chiller to protect itself in potentially harmful conditions.

Supply Water Temperature Drop

The performance data for the Trane air-cooled Series R® chiller is based on a chilled water temperature drop of 10°F (5.6°C). Chilled water temperature drops from 6 to 18°F (3.3 to 10°C) may be used as long as minimum and maximum water temperatures and flow rates are not violated.

Temperature drops outside this range are beyond the optimum range for control and may adversely affect the microcomputer's ability to maintain an acceptable supply water temperature range. Further, temperature drops of less than 6°F (3.3°C) may result in inadequate refrigerant superheat. Sufficient superheat is always a primary concern in any refrigerant 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 (3.3°C), an evaporator runaround loop may be required.

Leaving Water Temperature Out of Range

Many process cooling jobs require temperature ranges that cannot be met with the minimum and maximum published values for the Model RTAC evaporator. A simple piping change can alleviate this problem. For example: A laboratory load requires 120 gpm (7.6 l/s) of water entering the process at 85°F (29.4°C) and returning at 95°F (35°C). The accuracy required is better than the cooling tower can give. The selected chiller has adequate capacity, but a maximum leaving chilled water temperature of 60°F (15.6°C).

In Figure 2, p. 9, both the chiller and process flow rates are equal. This is not necessary. For example, if the chiller had a higher flow rate, there would simply be more water bypassing and mixing with warm water.

Figure 1. Flow rate out of range system layout

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Variable Flow in the Evaporator

An attractive chilled water system option may be a variable primary flow (VPF) system. VPF systems present building owners with several cost saving benefits that are directly related to the pumps. The most obvious cost savings result from eliminating the secondary distribution pump, which in turn avoids the expense incurred with the associated piping connections (material, labor), electrical service, and variable frequency drive. Building owners often cite pump related energy savings as the reason that prompted them to install a VPF system.

The evaporator on the Model RTAC can withstand up to 50 percent water flow reduction as long as this flow is equal to or above the minimum flow rate requirements. The microprocessor and capacity control algorithms are designed to handle a maximum of 10% change in water flow rate per minute in order to maintain ± 0.5°F (0.28°C) leaving evaporator temperature control. For applications in which system energy savings is most important and tight temperature control is classified as +/- 2°F (1.1°C), up to 30 percent changes in flow per minute are possible.

With the help of a software analysis tool such as System Analyzer™, DOE-2 or TRACE™, you can determine whether the anticipated energy savings justify the use of variable primary flow in a particular application. It may also be easier to apply variable primary flow in an existing chilled water plant. Unlike the “decoupled” system design, the bypass can be positioned at various points in the chilled water loop and an additional pump is unnecessary.

Series Chiller Arrangements

Another energy saving strategy is to design the system around chillers arranged in series. The actual savings possible with such strategies depends on the application dynamics and should be researched by consulting your Trane Systems Solutions Representative and applying an analysis tool from the Trace software family. It is possible to operate a pair of chillers more efficiently in a series chiller arrangement than in a parallel arrangement. It is also possible to achieve higher entering to leaving chiller differentials, which may, in turn, provide the opportunity for lower chilled water design temperature, lower design flow, and resulting installation and operational cost savings. The Trane screw compressor also has excellent capabilities for “lift,” which affords an opportunity for “lift,” which affords an opportunity for savings on the evaporator water loop.

Series chiller arrangements can be controlled in several ways. Figure A3 shows a strategy where each chiller is trying to achieve the system design set point. If the cooling load is less than 50 percent of the systems capabilities, either chiller can fulfill the demand. As system loads increase, the Chiller 2 becomes preferentially loaded as it attempts to meet the leaving chilled water setpoint.

Chiller 1 will finish cooling the leaving water from Chiller 2 down to the system design setpoint.

Figure 2. Temperature out of range system layout

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Staggering the chiller set points is another control technique that works well for preferentially loading Chiller 1. If the cooling load is less than 50 percent of the system capacity, Chiller 1 would be able to satisfy the entire call for cooling. As system loads increase, Chiller 2 is started to meet any portion of the load that Chiller 1 can not meet.

Typical Water Piping

All building water piping must be flushed prior to making the final connections to the chiller. To reduce heat loss and prevent condensation, insulation should be installed. Expansion tanks are also usually required so that chilled water volume changes can be accommodated.

Short Water Loops

The proper location of the temperature control sensor is in the supply (outlet) water connection or pipe. This location allows the building to act as a buffer and assures a slowly changing return water temperature. If there is not a sufficient volume of water in the system to provide an adequate buffer, temperature control can be lost, resulting in erratic system operation and excessive compressor cycling. A short water loop has the same effect as attempting to control from the building return water. Typically, a two minute water loop is sufficient to prevent problems. Therefore, as a guideline, ensure the volume of water in the evaporator loop equals or exceeds two times the evaporator flow rate in gallons per minute. For a rapidly changing load profile, the amount of volume should be increased. To prevent the effect of a short water loop, the following items should be given careful consideration: A storage tank or larger header pipe to increase the volume of water in the system and, therefore, reduce the rate of change of the return water temperature.

Applications Types

• Comfort cooling.

• Industrial process cooling.

• Ice/thermal storage.

• Low temperature process cooling.

Figure 3. Typical series chiller arrangement

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Typical Unit Installation

Outdoor HVAC equipment must be located to minimize noise and vibration transmission to the occupied spaces of the building structure it serves. If the equipment must be located in close proximity to a building, it could be placed next to an unoccupied space such as a storage room, mechanical room, etc. It is not recommended to locate the equipment near occupied, sound sensitive areas of the building or near windows. Locating the equipment away from structures will also prevent sound reflection, which can increase levels at property lines, or other sensitive points.

When physically isolating the unit from structures, it is a good idea to not use rigid supports, and to eliminate any metal-to-metal or hard material contact, when possible. This includes replacing spring or metal weave isolation with elastomeric isolators. Figure A4 illustrates isolation recommendations for the RTAC.

For chiller sound ratings, installation tips and considerations on chiller location, pipe isolation, etc., refer to the Trane Air-Cooled Series R Chillers Sound Data and Application Guide for Noise Sensitive Installations.

System Options - Ice Storage

Trane air-cooled Series R® Chillers are well suited for ice production. An air-cooled machine typically switches to ice production at night. Two things happen under this assumption. First, the leaving brine temperature from the evaporator is lowered to around 22 to 24°F (-5.5 to -4.4°C).

Second, the ambient temperature has typically dropped about 15 to 20°F (8.3 to 11°C) from the peak daytime ambient. This effectively places a lift on the compressors that is similar to daytime running conditions. The chiller can operate in lower ambient at night and successfully produce ice to supplement the next day's cooling demands.

The Model RTAC produces ice by supplying ice storage tanks with a constant supply of glycol solution. Air-cooled chillers selected for these lower leaving fluid temperatures are also selected for efficient production of chilled fluid at nominal comfort cooling conditions. The ability of Trane chillers to serve “double duty” in ice production and comfort cooling greatly reduces the capital cost of ice storage systems.

When cooling is required, ice chilled glycol is pumped from the ice storage tanks directly to the cooling coils. No expensive heat exchanger is required. The glycol loop is a sealed system, eliminating expensive annual chemical treatment costs. The air-cooled chiller is also available for comfort cooling duty at nominal cooling conditions and efficiencies. The modular concept of glycol ice storage systems and the proven simplicity of Trane Tracer controllers allow the successful blend of reliability and energy saving performance in any ice storage application.

The ice storage system is operated in six different modes: each optimized for the utility cost of the hour.

1. Provide comfort cooling with chiller

2. Provide comfort cooling with ice

3. Provide comfort cooling with ice and chiller

4. Freeze ice storage

5. Freeze ice storage when comfort cooling is required

6. Off

Tracer optimization software controls operation of the required equipment and accessories to easily transition from one mode of operation to another. For example:

Even with ice storage systems there are numerous hours when ice is neither produced or consumed, but saved. In this mode the chiller is the sole source of cooling. For example, to cool the building after all ice is produced but before high electrical demand charges take effect, Tracer sets the air-cooled chiller leaving fluid setpoint to its most efficient setting and starts the chiller, chiller pump, and load pump.

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When electrical demand is high, the ice pump is started and the chiller is either demand limited or shut down completely. Tracer controls have the intelligence to optimally balance the contribution of ice and chiller in meeting the cooling load.

The capacity of the chiller plant is extended by operating the chiller and ice in tandem. Tracer rations the ice, augmenting chiller capacity while reducing cooling costs. When ice is produced, Tracer will lower the air-cooled chiller leaving fluid setpoint and start the chiller, ice and chiller pumps, and other accessories. Any incidental loads that persist while producing ice can be addressed by starting the load pump and drawing spent cooling fluid from the ice storage tanks.

For specific information on ice storage applications, contact your local Trane sales office.

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Model Number Descriptions Digits 1, 2 - Unit Model RT = Rotary chiller

Digit 3 - Unit Type A = Air-cooled

Digit 4 - Development Sequence C = Development sequence

Digits 5, 6 & 7 - Nominal Capacity

140 = 140 Nominal tons 155 = 155 Nominal tons 170 = 170 Nominal tons 185 = 185 Nominal tons 200 = 200 Nominal tons 225 = 225 Nominal tons 250 = 250 Nominal tons 275 = 275 Nominal tons 300 = 300 Nominal tons 350 = 350 Nominal tons 400 = 400 Nominal tons 450 = 450 Nominal tons 500 = 500 Nominal tons

Digit 8 - Unit Voltage A = 200/60/3 C = 230/60/3 J = 380/60/3 4 = 460/60/3 5 = 575/60/3

Digit 9 - Manufacturing Location U = Water Chiller Business Unit, Pueblo, CO USA

Digits 10, 11 - Design Sequence ** = Factory Input

Digit 12 - Unit Basic Configuration

N = Standard efficiency/performance H = High efficiency/performance A = Extra efficiency/performance

Digit 13 - Agency Listing N = No agency listing U = C/UL listing S = Seismic rated - IBC and OSHPD R = C/UL listed and seismic rated

Digit 14 - Pressure Vessel Code A = ASME pressure vessel code C = Canadian code D = Australian code L = Chinese code

Digit 15 - Evaporator Application F = Standard (40-60°F) leaving temp G = Low (Less than 40°F) leaving temp R = Remote (40-60°F) leaving temp

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Digit 16 - Evaporator Configuration

N = 2 pass, 0.75” insulation P = 3 pass, 0.75” insulation Q = 2 pass, 1.25” insulation R = 3 pass, 1.25” insulation

Digit 17 - Condenser Application N = Standard ambient (25-115°F) H = High ambient (25-125°F) L = Low ambient (0-115°F) W = Wide ambient (0-125°F)

Digit 18 - Condenser Fin Material 1 = Standard aluminum slit fins 2 = Copper fins 4 = CompleteCoat™ epoxy coated fins

Digit 19 - Condenser Fan/Motor Configuration

T = STD fans with TEAO motors W = Low noise fans

Digit 20 - Compressor Motor Starter Type

X = Across-the-line Y = Wye-delta closed transition

Digit 21 - Incoming Power Line Connection

1 = Single point power connection 2 = Dual point power connection

Digit 22 - Power Line Connection Type

T = Terminal block connection D = Non-fused disconnect switch(es) C = Circuit breaker(s)

Digit 23 - Unit Operator Interface D = DynaView™ operator interface

Digit 24 - Remote Operator Interface

N = No remote interface C = Tracer® Comm 3 interface B = BACnet® interface L = LonTalk® compatible (LCI-C) interface

Digit 25 - Control Input Accessories/Options

N = No remote inputs R = Ext. evaporator leaving water setpoint C = Ext. current limit setpoint B = Ext. leaving water and current limit setpoint

Digit 26 - Control Output Accessories/Options

N = No output options A = Alarm relay outputs C = Ice making I/O D = Alarm relay outputs and ice making I/O Digit 27 - Electrical Protection Options

0 = No short circuit rating 5 = Default short circuit rating 6 = High amp short circuit rating

Digit 28 - Flow Switch T = Factory installed flow switch, water U = Factory installed flow switch, non-water fluids

Digit 29 - Control Panel Accessories

N = No convenience outlet A = 15A 115V convenience outlet

(60Hz)

Digit 30 - Service Valves 0 = No suction service valves 1 = With suction service valves

Digit 31 - Compressor Sound Attenuation Option

0 = No compressor sound attenuation

1 = Factory installed compressor sound attenuation

Digit 32 - Appearance Options N = No appearance options A = Architectural louvered panels C = Half louvers

Digit 33 - Installation Accessories

N = No installation accessories F = Flange kit for water connections R = Neoprene in shear unit isolators G = Neoprene isolators and flange kit E = Seismic elastomeric isolation pads S = Seismic spring isolators

Digit 34 - Factory Testing Options

0 = Standard functional test C = Witness performance test with report E = Performance test with report

Digit 35 — Control, Label & Literature C = Spanish E = English F = French

Digit 36 — Special Order X = Standard unit configuration F = Ship to final finisher S = Unit has special order feature

Digit 37 — Safety Devices N = Standard

General Data

Table 1. 60 Hz standard efficiency — I-P

Size 140 155 170 185 200 225 250 275 300 350 400 450 500

Compressor Screw

Quantity # 2 2 2 2 2 2 2 3 3 3 4 4 4

Nominal size @60Hz (tons) 70/

85/

85/

100/

100/

120/

120/

85-85/

100-100/

120-120/

100-100/ 100-100

120-120/ 100-100

120-120/ 120-120

Evaporator Flooded

Water storage (gal) 29 29 33 33 35 38 38 54 60 65 77 81 84

2 pass arrangement

Min flow (gpm) 195 195 204 204 219 219 219 267 312 342 384 408 426

Max flow (gpm) 715 715 748 748 803 803 803 979 1144 1254 1408 1496 1562

Water connection (NPS-in) 4 4 6 6 6 6 6 8 8 8 8 8 8

3 pass arrangement

Min flow (gpm) 130 130 136 136 146 146 146 178 208 228 256 272 284

Max flow (gpm) 477 477 499 499 536 536 536 653 763 836 939 998 1042

Water connection (NPS-in) 3.5 3.5 4 4 4 4 4 6 6 6 8 8 8

Condenser Fin and tube

Qty of coils # 4 4 4 4 4 4 4 8 8 8 8 8 8

Coil length (in) 156/

180/

180/

216/

216/

252/

252/

180/ 108 216/108 252/108 216/216 252/216 252/252

Coil height (in) 42 42 42 42 42 42 42 42 42 42 42 42 42

(mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067

# of rows # 3 3 3 3 3 3 3 3 3 3 3 3 3

Fins per foot (fpf) 192 192 192 192 192 192 192 192 192 192 192 192 192

Fan Direct drive propeller

Quantity # 4/4 5/4 5/5 6/5 6/6 7/6 7/7 10/6 12/6 14/6 12/12 14/12 14/14

Diameter (in) 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0 30.0

Air flow per fan (cfm) 9625 9394 9209 9209 9209 9210 9210 9209 9209 9208 9209 9210 9214

Power/motor (hp) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5

Fan speed (rpm) 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

Tip speed (Ft/min) 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954

General Unit HFC-134a

# Refrig ckts # 2 2 2 2 2 2 2 2 2 2 2 2 2

% min load % 15 15 15 15 15 15 15 15 15 15 15 15 15

Refrigerant charge (lb) 165/

175/

175/

215/

215/

225/

225/

365/ 200 415/200 460/200 415/415 460/415 460/460

Oil charge (gal) 1.3/ 1.3

1.3/ 1.3

1.3/ 1.3

1.9/ 1.3

1.9/ 1.9

1.9/ 1.9

1.9/

1.9 4.2/1.9 4.6/1.9 4.6/1.9 4.6/4.6 4.6/4.6 4.6/4.6

Min ambient-std (°F) 25 25 25 25 25 25 25 25 25 25 25 25 25

Min ambient-low (°F) 0 0 0 0 0 0 0 0 0 0 0 0 0

Notes:

1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.

2. Minimum start-up/operating ambient is based on a 5 mph wind across the condenser.

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Table 2. 60 Hz high efficiency — I-P

Size 140 155 170 185 200 225 250 275 300 350 400

Compressor Screw

Quantity # 2 2 2 2 2 2 2 3 3 4 4

Nominal size @60Hz (tons) 70/70 85/70 85/85 100/85 100/100 120/100 120/120 85-85/

100-

100/100 85-85/ 85/85

100-100/ 100-100

Evaporator Flooded

Water storage (gal) 33 33 35 38 38 38 38 65 65 77 84

2 pass arrangement

Min flow (gpm) 204 204 219 219 219 219 219 342 342 384 426

Max flow (gpm) 748 748 803 803 803 803 803 1254 1254 1408 1562

Water connection (NPS-in) 6 6 6 6 6 6 6 8 8 8 8

3 pass arrangement

Min flow (gpm) 136 136 146 146 146 146 146 228 228 256 284

Max flow (gpm) 499 499 536 536 536 536 536 836 836 939 1042

Water connection (NPS-in) 4 4 4 4 4 4 4 6 6 8 8

Condenser Fin and tube

Qty of coils # 4 4 4 4 4 8 8 8 8 8 8

Coil length (in) 180/180 216/180 216/216 252/216 252/252 144/144 144/144 216/144 252/144 216/216 252/252

Coil height (in) 42 42 42 42 42 42 42 42 42 42 42

Number of rows # 3 3 3 3 3 3 3 3 3 3 3

Fins per foot (fpf) 192 192 192 192 192 192 192 192 192 192 192

Fan Direct drive propeller

Quantity # 5/5 6/5 6/6 7/6 7/7 8/6 8/8 12/6 14/6 12/12 14/14

Diameter (in) 30 30 30 30 30 30 30 30 30 30 30

Air flow/fan (cfm) 9199 9199 9199 9200 9201 9783 9203 9652 9605 9199 9201

Power/motor (hp) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5

Fan speed (rpm) 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140 1140

Tip speed (Ft/Min) 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954 8954

General Unit HFC-134a

# Refrig ckts # 2 2 2 2 2 2 2 2 2 2 2

% min load % 15 15 15 15 15 15 15 15 15 15 15

Refrigerant charge (lb) 175/175 215/205 215/215 225/215 225/225 235/235 235/235 415/200 460/200 415/415 460/460

Oil charge (gal) 1.3/1.3 1.3/1.3 1.3/1.3 1.9/1.3 1.9/1.9 1.9/1.9 1.9/1.9 2.1-2.1/ 1.9

2.3-2.3/ 1.9

2.1-2.1/ 2.1-2.1

2.3-2.3/ 2.3-2.3

Min ambient-std (°F) 25 25 25 25 25 25 25 25 25 25 25

Min ambient-low (°F) 0 0 0 0 0 0 0 0 0 0 0

Notes:

1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.

RLC-PRC006Q-EN 15

Table 3. 60 Hz extra efficiency — I-P

Size 140 155 170 185 200 250 275 300 350

Compressor Screw

Quantity # 2 2 2 2 2 3 3 4 4

Nominal size @60Hz (tons) 70/70 85/70 85/85 100/85 100/100 70-70/85 85-85/85 70-70/

70-70 85-85/ 85-85

Evaporator Flooded

Water storage (gal) 35 33 38 38 38 65 65 71 84

2 pass arrangement

Min flow (gpm) 219 204 219 219 219 342 342 384 426

Max flow (gpm) 803 748 803 803 803 1254 1254 1408 1562

Water connection (NPS-in) 6 6 6 6 6 8 8 8 8

3 pass arrangement

Min flow (gpm) 146 136 146 146 146 228 228 256 284

Max flow (gpm) 536 499 536 536 536 836 836 939 1042

Water connection (NPS-in) 4 4 4 4 4 6 6 8 8

Condenser Fin and tube

Qty of coils # 4 4 4 8 8 8 8 8 8

Coil length (in) 216/216 252/216 252/252 144/144 144/144 216/144 252/144 216/216 252/252

Coil height (in) 42 42 42 42 42 42 42 42 42

Number of rows # 3 3 3 3 3 3 3 3 3

Fins per foot (fpf) 192 192 192 192 192 192 192 192 192

Fan Direct drive propeller

Quantity # 6/6 7/6 7/7 8/6 8/8 12/6 14/6 12/12 14/14

Diameter (in) 30 30 30 30 30 30 30 30 30

Air flow/fan (cfm) 9199 9200 9201 9783 9203 9652 9605 9199 9201

Power/motor (hp) 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5 1.5

Fan speed (rpm) 1140 1140 1140 1140 1140 1140 1140 1140 1140

Tip speed (Ft/Min) 8954 8954 8954 8954 8954 8954 8954 8954 8954

General Unit HFC-134a

# Refrig ckts # 2 2 2 2 2 2 2 2 2

% min load % 15 15 15 15 15 15 15 15 15

Refrigerant charge (lb) 215/215 225/215 225/225 235/235 235/235 415/200 460/200 415/415 460/460

Oil charge (gal) 1.3/1.3 1.9/1.3 1.9/1.9 1.9/1.9 1.9/1.9 2.1-2.1/1.9 2.1-2.1/1.9 2.1-2.1/ 2.1-2.1

2.1-2.1/ 2.1-2.1

Min ambient-std (°F) 25 25 25 25 25 25 25 25 25

Min ambient-low (°F) 0 0 0 0 0 0 0 0 0

Notes:

1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.

16 RLC-PRC006Q-EN

Table 4. 60 Hz standard efficiency — SI

Size 140 155 170 185 200 225 250 275 300 350 400 450 500

Compressor Screw

Quantity # 2 2 2 2 2 2 2 3 3 3 4 4 4

Nominal size (tons) @60Hz 70/70 85/70 85/85 100/

100/

120/

120/

85-85/

100-100/

120-120/

100-100/ 100-100

120-120/ 100-100

120-120/ 120-120

Evaporator Flooded

Water storage (L) 111 111 127 127 134 145 145 205 229 245 293 306 316

2 pass arrangement

Min flow (L/s) 12 12 13 13 14 14 14 17 20 22 24 26 27

Max flow (L/s) 45 45 47 47 51 51 51 62 72 79 89 94 99

Water connection (NPS-in) 4 4 6 6 6 6 6 8 8 8 8 8 8

3 pass arrangement

Min flow (L/s) 8 8 9 9 9 9 9 11 13 14 16 17 18

Max flow (L/s) 30 30 31 31 34 34 34 41 48 53 59 63 66

Water connection (NPS-in) 3.5 3.5 4 4 4 4 4 6 6 6 8 8 8

Condenser Fin and tube

Qty of coils # 4 4 4 4 4 4 4 8 8 8 8 8 8

Coil length (mm) 3962/

4572/

4572/

5486/

5486/

6400/

6400/

4572/

5486/

6400/

5486/

6400/

6400/

Coil height (mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067

# of rows # 3 3 3 3 3 3 3 3 3 3 3 3 3

Fins per foot (fpf) 192 192 192 192 192 192 192 192 192 192 192 192 192

Fan Direct drive propeller

Quantity # 4/4 5/4 5/5 6/5 6/6 7/6 7/7 10/6 12/6 14/6 12/12 14/12 14/14

Diameter (mm) 726.0 726.0 726.0 726.0 726.0 726.0 726.0 726.0 726.0 726.0 726.0 726.0 726.0

Air flow per fan (m³/hr) 16351 15958 15644 15644 15644 15646 15647 15644 15645 15642 15645 15646 15653

Power/motor (kW) 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12

Fan speed (rps) 19 19 19 19 19 19 19 19 19 19 19 19 19

Tip speed M/S 45 45 45 45 45 45 45 45 45 45 45 45 45

General Unit HFC-134a

# Refrig ckts # 2 2 2 2 2 2 2 2 2 2 2 2 2

% min load % 15 15 15 15 15 15 15 15 15 15 15 15 15

Refrigerant charge (kg) 75/75 79/75 79/79 98/95 98/98 102/

102/ 102 166/91 188/91 209/91 188/188 209/188 209/209

Oil charge (L) 5/5 5/5 5/5 7/5 7/7 7/7 7/7 8-8/7 9-9/7 9-9/11 9-9/9-9 9-9/9-9 9-9/9-9

Min ambient-std (°C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9

Min ambient-low (°C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8

Notes:

1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.

RLC-PRC006Q-EN 17

Table 5. 60 Hz high efficiency — SI

Size 140 155 170 185 200 225 250 275 300 350 400

Compressor Screw

Quantity # 2 2 2 2 2 2 2 3 3 4 4

Nominal size @60Hz (tons) 70/70 85/70 85/85 100/85 100/100 120/100 120/120 85-85/

100-

100/100 85-85/ 85/85

100-100/ 100-100

Evaporator Flooded

Water storage (L) 127 127 134 145 145 145 145 245 245 293 316

2 Pass arrangement

Min flow (L/s) 13 13 14 14 14 14 14 22 22 24 27

Max flow (L/s) 47 47 51 51 51 51 51 79 79 89 99

Water connection (NPS-in) 6 6 6 6 6 6 6 8 8 8 8

3 Pass arrangement

Min flow (L/s) 9 9 9 9 9 9 9 14 14 16 18

Max flow (L/s) 31 31 34 34 34 34 34 53 53 59 66

Water connection (NPS-in) 4 4 4 4 4 4 4 6 6 8 8

Condenser Fin and tube

Qty of coils # 4 4 4 4 4 8 8 8 8 8 8

Coil length (mm) 4572/

5486/

5486/

6400/

6400/

3657/

3657/

5486/

6400/

5486/

6400/

Coil height (mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067 1067

Number of rows # 3 3 3 3 3 3 3 3 3 3 3

Fins per foot (fpf) 192 192 192 192 192 192 192 192 192 192 192

Fan Direct drive propeller

Quantity # 5/5 6/5 6/6 7/6 7/7 8/6 8/8 12/6 14/6 12/12 14/14

Diameter (mm) 762 762 762 762 762 762 762 762 762 762 762

Air per fan (m³/hr) 15628 15628 15628 15629 15631 16619 15634 16397 16317 15628 15631

Power/motor (kW) 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12

Fan speed (rps) 19 19 19 19 19 19 19 19 19 19 19

Tip speed M/S 45 45 45 45 45 45 45 45 45 45 45

General Unit HFC-134a

# refrig ckts # 2 2 2 2 2 2 2 2 2 2 2

% min load % 15 15 15 15 15 15 15 15 15 15 15

Refrig charge (kg) 79/79 98/93 98/98 102/98 102/102 107/107 107/107 188/91 209/91 188/188 209/209

Oil charge (L) 5/5 5/5 5/5 7/5 7/7 7/7 7/7 8-8/7 9-9/7 8-8/8-8 9-9/9-9

Min ambient-std (°C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9

Min ambient-low (°C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8

Notes:

1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.

18 RLC-PRC006Q-EN

Table 6. 60 Hz extra efficiency — SI

Size 140 155 170 185 200 250 275 300 350

Compressor

Quantity # 2 2 2 2 2 3 3 4 4

Nominal size @60Hz (tons) 70/70 85/70 85/85 100/85 100/100 70-70/85 85-85/85 70-70/

70-70 85-85/ 85-85

Evaporator Flooded

Water storage (L) 133 125 145 145 145 245 245 270 316

2 Pass arrangement

Min flow (L/s) 14 13 14 14 14 22 22 24 27

Max flow (L/s) 51 47 51 51 51 79 79 89 99

Water connection (NPS-in) 6 6 6 6 6 8 8 8 8

3 Pass arrangement

Min flow (L/s) 9 9 9 9 9 14 14 16 18

Max flow (L/s) 34 31 34 34 34 53 53 59 66

Water connection (NPS-in) 4 4 4 4 4 6 6 8 8

Condenser Fin and tube

Qty of coils # 4 4 4 8 8 8 8 8 8

Coil length (mm) 5486/5486 6400/5486 6400/6400 3657/3657 4572/2743 5486/3657 6400/3657 5486/5486 6400/6400

Coil height (mm) 1067 1067 1067 1067 1067 1067 1067 1067 1067

Number of rows # 3 3 3 3 3 3 3 3 3

Fins per foot (fpf) 192 192 192 192 192 192 192 192 192

Fan Direct drive propeller

Quantity # 6/6 7/6 7/7 8/6 8/8 12/6 14/6 12/12 14/14

Diameter (mm) 762 762 762 762 762 762 762 762 762

Air per fan (m³/hr) 15628 15629 15631 16619 15634 16397 16317 15628 15631

Power/motor (kW) 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12 1.12

Fan speed (rps) 19 19 19 19 19 19 19 19 19

Tip speed M/S 45 45 45 45 45 45 45 45 45

General Unit HFC-134a

# refrig ckts # 2 2 2 2 2 2 2 2 2

% min load % 15 15 15 15 15 15 15 15 15

Refrig charge (kg) 98/98 102/98 102/102 107/107 107/107 188/91 209/91 188/188 209/209

Oil charge (L) 5/5 7/5 7/7 7/7 7/7 8-8/7 8-8/7 8-8/8-8 8-8/8-8

Min ambient-std (°C) -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9 -3.9

Min ambient-low (°C) -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8 -17.8

Notes:

1. Data containing information on two circuits is shown as follows: ckt 1/ ckt 2.

RLC-PRC006Q-EN 19

Controls

LCD Touch Screen Display The standard DynaView™ display provided with the Tracer® CH530 control panel features an LCD touch screen 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, pressure, and diagnostics. It uses full text display available in 19 languages.

Display Features Include:

• LCD touch screen with LED backlighting, for scrolling access to input and output operating information

• Single screen, folder/tab style display of all available information on individual components (evaporator, condenser, compressor, etc.)

• Password entry/lockout system to enable or disable display

• Automatic and immediate stop capabilities for standard or immediate manual shutdown

• Fast, easy access to available chiller data in tabbed format, including:

• Modes of operation, including normal cooling as well as ice making

• Water temperatures and setpoints

• Loading and limiting status and setpoints

• Outdoor air temperature

• Start/stop differential timers

• Pump status and override

• Chilled water reset settings

• Optional external setpoints, including:

• Chilled water, demand limit, ice building

Reports, listed on a single tabbed screen for easy access, including:

• ASHRAE, containing all guideline 3 report information

• Evaporator, condenser, compressor

Evaporator, condenser, and compressor reports containing all operational information on individual components, including:

• Water temperatures, refrigerant pressures, temperatures, and approach

• Flow switch status, EXV position, compressor starts and run time

Alarm and diagnostic information, including:

• Flashing alarms with touch screen button for immediate address of alarm condition

• Scrollable list of last ten active diagnostics

• Specific information on applicable diagnostic from list of over one hundred

• Automatic or manual resetting diagnostic types

Adaptive Controls

Adaptive Controls directly sense 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 when damage may occur to the unit or shutdown on a safety, Adaptive Controls takes corrective action to avoid shutdown and keep the chiller operating. This happens through combined actions of compressor and/or fan staging. Whenever possible, the chiller is allowed to continue making chilled water. This keeps cooling capacity available until the problem can be solved. Overall, the safety controls help keep the building or process running and out of trouble.

20 RLC-PRC006Q-EN

Stand Alone Controls

Single chillers installed in applications without a building management system is simple to install and control: 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 water flow interlock.

Signals from a time clock or some other remote device are wired to the external auto/stop input.

• External Auto/Stop - A job site provided contact closure will turn the unit on and off.

• Chilled Water Flow Interlock - A job site provided contact closure from a chilled water pump contactor or a flow switch is required and will allow unit operation if a load exists. This feature will allow the unit to run in conjunction with the pump system.

• External Interlock - A job site 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 job site 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 pump control by the chiller is a requirement on the Air-Cooled Series R.

• Chilled Water Temperature Reset - The reset can be based on return water temperature or outdoor air temperature.

Hardwire Points

Microcomputer controls allow simple interface with other control systems, such as time clocks, building automation systems, and ice storage systems via hardwire points. This means you have the flexibility to meet job requirements while not having to learn a complicated control system.

Remote devices are wired from the control panel to provide auxiliary control to a building automation system. Inputs and outputs can be communicated via a typical 4–20 mA electrical signal, an equivalent 2–10 Vdc signal, or by utilizing contact closures. Contact closures may be used to trigger job site supplied alarm lights or alarm bells.

This setup has the same features as a stand alone water chiller, with the possibility of having additional optional features:

• Circuit enable/disable

• Ice making enable/status

• External chilled water setpoint, external demand limit setpoint

• Alarm indication contacts provides three single pole double throw contact closures to indicate: compressor on/off status, compressor running at maximum capacity, failure has occurred (ckt 1/ckt 2)

BACnet® Interface

BACnet® interface capabilities are available, with communication link via single twisted-pair wiring to a factory-installed and tested communication board.

Required features:

• BACnet® Interface (selectable option with chiller)

BACnet® is a data communication protocol for building automation and control networks developed by American Society of Heating, Refrigerating and Air-Conditioning Engineers

(ASHRAE).

LonTalk® LCI-C Interface

LonTalk® (LCI-C) communications capabilities are available, with communication link via single twisted pair wiring to factory installed, tested communication board.

• Required features: LonTalk®/Tracer® Summit Interface (selectable option with chiller)

RLC-PRC006Q-EN 21

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.

LonTalk® Communications Interface for Chillers (LCI-C) provides a generic automation system with the LONMARK® chiller profile inputs/outputs. In addition to the standard points, Trane provides other commonly used network output variables for greater interoperability with any automation system.

The complete reference list of Trane LonTalk® points is available on the LONMARK® web site.

Trane controls or another vendor’s system can use the predefined list of points with ease to give the operator a complete picture of how the system is running

Tracer Summit

The chiller plant control capabilities of the Trane Tracer® Summit building automation system are unequaled in the industry. Trane’s depth of experience in chillers and controls makes us a well qualified choice for automation of chiller plants using air-cooled chillers. Our chiller plant automation software is fully pre-engineered and tested.

Required features:

• LonTalk®/Tracer® Summit Interface (selectable option with chiller)

• Building Control Unit (external device required)

Energy Efficiency

• Sequences starting of chillers to optimize the overall chiller plant energy efficiency

– Individual chillers operate as base, peak, or swing based on capacity and efficiency

– Automatically rotates individual chiller operation to equalize runtime and wear between chillers.

– Evaluates and selects the lowest energy consumption alternative from an overall system perspective.

Easy Operation and Maintenance

• Remote monitoring and…