Trane Stealth Air-Cooled Chiller Model RTAE Installation and Maintenance Manual

Installation, Operation, and Maintenance

Stealth™ Air-Cooled Chiller Model RTAE

150 to 300 Nominal Tons

SAFETY WARNING

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and airconditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment  by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the li terature and on the tags, stickers, and labels that are attached to the equipment.

October 2014

RTAE-SVX001B-EN

Warnings, Cautions and Notices

Warnings, Cautions and Notices. Note that warnings,

cautions and notices appear at appropriate intervals throughout this manual. Warnings are provided to alert installing contractors to potential hazards thatcould result in death or personal injury. Cautions are designed to alert personnel to hazardous situations that could result in personal injury, while notices indicate a situation that could result in equipment or property-damage-only accidents.

Your personal safety and the proper operation of this

machine depend upon the strict observance of these precautions.

Read this manual thoroughly beforeoperating or servicing this unit.

ATTENTION: Warnings, Cautions and Notices appear at

appropriate sections throughout this literature. Read these carefully:

WARNING

CAUTIONs

NOTICE:

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

Indicates a situation thatcould result in equipment or property-damage only

Important Environmental Concerns!

Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment.Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs such as HCFCs and HFCs.

Responsible Refrigerant Practices!

Trane believes that responsible refrigerant practices are

important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified.The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that

must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

WARNING

Refrigerant under High Pressure!

System contains oil and refrigerant under high pressure. Recover refrigerant to relieve pressure before opening the system. See unit nameplate for refrigerant type. Do not use non-approved refrigerants, refrigerant substitutes, or refrigerant additives. Failure to recover refrigerant to relieve pressure or the use of nonapproved refrigerants, refrigerant substitutes, or refrigerant additives could result in an explosion which could result in death or serious injury or equipment damage.

WARNING

Personal Protective Equipment (PPE) Required!

Installing/servicing this unit could result in exposure to electrical, mechanical and chemical hazards.

• Before installing/servicing this unit, technicians MUST put on all PPE required for the work being undertaken (Examples; cut resistant gloves/sleeves, butyl gloves, safety glasses, hard hat/bump cap, fall protection, electrical PPE and arc flash clothing).

ALWAYS refer to appropriate Material Safety Data

Sheets (MSDS)/Safety Data Sheets (SDS) and OSHA guidelines for proper PPE.

• When working with or around hazardous chemicals,

ALWAYS refer to the appropriate MSDS/SDS and

OSHA/GHS (Global Harmonized System of Classification and Labelling of Chemicals) guidelines for information on allowable personal exposure levels, proper respiratory protection and handling instructions.

• If there is a risk of energized electrical contact, arc, or flash, technicians MUST put on all PPE in accordance with OSHA, NFPA 70E, or other country-specific requirements for arc flash protection, PRIOR to servicing the unit. NEVER PERFORM ANY SWITCHING, DISCONNECTING, OR VOLTAGE

TESTING WITHOUT PROPER ELECTRICAL PPE AND ARC FLASH CLOTHING. ENSURE ELECTRICAL

METERS AND EQUIPMENT ARE PROPERLY RATED FOR INTENDED VOLTAGE.

Failure to follow instructions could result in death or serious injury.

WARNING

Proper Field Wiring and Grounding Required!

All field wiring MUST be performed by qualified

personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards.To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes. Failure to follow code could result in death or serious injury.

Factory Warranty Information

Compliance with the following is required to preserve the factory warranty:

All Unit Installations

Startup MUST be performed byTrane, or an authorized agent ofTrane, to VALIDATE this WARRANTY. Contractor must provide a two-week startup notification to Trane (or an agent of Trane specifically authorized to perform startup).

Warnings, Cautions and Notices

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 per son of such revision or change.

Trademarks

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

Revision History

RTAE-SVX001B-EN (29 Oct 2014)

• Added transformer option.

• Added harmonic filter option.

• Added 150T and 165T single circuit units.

• Added extreme low ambient option.

• Added seismic isolation option.

• Added CE/PED option.

• Updated unit weights and isolator information.

• Updated drive cooling fluid volumes.

• Modified oil sump check procedure.

RTAE-SVX001A-EN (24 Sep 2013)

New release.

RTAE-SVX001B-EN 3

Table of Contents

Warnings, Cautions and Notices .......... 2

Factory Warranty Information ........... 3

Copyright ............................. 3

Trademarks ........................... 3

Revision History ....................... 3

Model Number Description ............... 6

Outdoor Unit Nameplate ............... 6

Compressor Nameplate ................ 6

Model Number Descriptions .............. 7

Unit Model Number .................... 7

Compressor Model Number ............ 8

Compressor Serial Number ............. 8

General Information ..................... 9

Unit Description ....................... 9

Accessory/Option Information ........... 9

General Data ........................... 10

Drive Cooling System ................. 11

Pre-Installation ......................... 12

Unit Inspection ..................... 12

Inspection ......................... 12

Storage ........................... 12

Installation Requirements .............. 13

Dimensions and Weights ................ 14

Weights ............................. 14

Unit Dimensions ...................... 14

Service Clearances .................... 14

Installation Mechanical .................. 15

Location Requirements ................ 15

Sound Considerations ............... 15

Foundation ........................ 15

Clearances ......................... 15

Center of Gravity ..................... 20

Isolation and Sound Emission .......... 20

Unit Isolation and Leveling ........... 20

Compressor Shipping Bolt Removal .... 23

Units with InvisiSound™ Ultimate Option

(Model Number Digit 12 = 3) .......... 23

Pressure Relief Valves ..................26

Evaporator Waterside Pressure Drop Curves

...............................27

Freeze Protection ......................29

Low Evaporator Refrigerant Cutout,

Glycol Requirements

...................30

Installation Electrical .....................31

General Recommendations .............31

Adaptive Frequency™ Drive (AFD3)

Capacitor Discharge ..................32

Units with Nitrogen Charge Option .....32

Installer-Supplied Components ..........32

Power Supply Wiring .................33

Control Power Supply ................34

Service Power Connection ............34

Heater Power Supply .................34

Interconnecting Wiring .................35

Chilled Water Pump Control ...........35

Programmable Relays ..................35

Relay Assignments Using Tracer™ TU ...36

Low Voltage Wiring ....................36

Emergency Stop .....................36

External Auto/Stop ...................36

External Circuit Lockout –

Circuit #1 and #2 .....................36

Ice Building Option ..................37

External Chilled Water Setpoint (ECWS)

Option .............................37

External Demand Limit Setpoint (EDLS)

Option .............................37

Chilled Water Reset (CWR) ............38

Transformer Power Rating ..............39

Communications Interface ..............39

LonTalk Interface (LCI-C) ..............39

BACnet Interface (BCI-C) ..............39

Modbus Remote Terminal Unit Interface .39

Operating Principals .....................40

Refrigeration Circuits ..................40

Refrigeration Cycle ....................40

Drainage ............................ 23

Refrigerant R-134a .....................40

Evaporator Piping Components ....... 25

4 RTAE-SVX001B-EN

Compressor and Lube Oil System ...... 40

Condenser and Fans .................. 40

Evaporator ........................... 41

Drive Cooling System ................. 41

Controls ............................... 42

UC800 Specifications .................. 42

Wiring and Port Descriptions ......... 42

Communication Interfaces ............ 43

Rotary Switches .................... 43

LED Description and Operation ........ 43

Tracer AdaptiView TD7 Display ......... 43

Operator Interface .................. 43

Main Display Area/Home Screen ...... 44

Viewing Chiller Operating Modes ..... 44

Alarms ........................... 46

Reports ........................... 47

Equipment Settings ................. 49

Display Settings .................... 51

Viewing the Settings Screen ......... 51

Cleaning the Display ................ 52

Security Settings ................... 52

Disabling/Enabling Security .......... 52

InvisiSound Ultimate - Noise Reduction

Mode ............................. 54

Tracer™ TU .......................... 55

Pre-Start ............................... 56

Start-Up and Shutdown ................. 57

Unit Start-Up ......................... 57

Temporary Shutdown And Restart ...... 57

Extended Shutdown Procedure ......... 57

Seasonal Unit Start-Up Procedure ...... 58

System Restart After Extended Shutdown 58

Sequence of Operation ................ 59

Software Operation Overview ......... 59

Timelines .......................... 59

Power Up Diagram .................. 60

Power Up to Starting ................ 61

Stopped to Starting ................. 62

Running (Lead Compressor/Circuit Start

and Run) .......................... 63

Running (Lag Compressor/Circuit

Start and Run) ......................63

Satisfied Setpoint ....................64

Normal Shutdown to Stopped or

Run Inhibit .........................65

Immediate Shutdown to Stopped or

Run Inhibit .........................65

Ice Making (Running to Ice Making to

Running) ...........................66

Ice Making (Auto to Ice Making to Ice

Making Complete) ...................67

Maintenance ............................68

Recommended Maintenance ............69

Weekly .............................69

Monthly ............................69

Annual .............................69

Refrigerant and Oil Charge Management .69

Lubrication System ....................69

Oil Sump Level Check ................69

Drive Cooling System ..................71

Service Intervals .....................71

Unit Diagnostics .....................71

pH Test ............................71

Pressure Relief Cap ..................71

Drive Cooling Expansion Tank .........71

Condenser Coils — Cleaning and Inspection

Coil Cleaning and Inspection Interval ....72

Cleaning Air Side of RTAE Coils ........72

Cleaning Coated Coils ................72

Coil Corrosion Protection Inspection ....72

............................72

Reinstallation of Compressor Shipping

Bolts

.................................72

Servicing Chiller Roof ................72

Diagnostics .............................73

AFD Diagnostics .......................73

Main Processor Diagnostics .............76

Communication Diagnostics ............85

Operator Display Diagnostics and Messages

............................88

Unit Wiring .............................89

Log and Check Sheet ....................90

RTAE-SVX001B-EN 5

Model Number Description

Nameplates

The Stealth™ outdoor unit nameplates are applied to the

exterior of the Control Panel. A compressor nameplate is located on each compressor. When the unit arrives, compare all nameplate data with ordering, submittal, and shipping information.

Outdoor Unit Nameplate

See Figure 1 for a typical unit nameplate.The outdoor unit nameplate provides the following information:

• Unit model and size description.

• Unit serial number.

• Identifies unit electrical requirements.

• Lists correct operating charges of R-134a and refrigerant

• Lists unit test pressures.

• Identifies installation, operation and maintenance and service

• Lists drawing numbers for unit wiring diagrams.

Model Number Coding System

The model numbers for the unit and the compressor are

composed of numbers and letters that represent features of the equipment. Shown in the following table is a sample

oil (Trane OIL00311).

data literature.

of typical unit model number and the coding system for each.

Each position, or group of positions, in the model number is used to represent a feature. For example, in the first table, position 08 of the unit model number, Unit Voltage, contains the number“4”.A 4 in this position means that the unit voltage is 460/60/3.

Unit Model Number. An example of a typical unit

model number (M/N) is:

RTAE 200F UA01 AA1F N1X1 A1A0 0CB0 X02X AA03 000

Model number digits are selected and assigned in accordance with the definitions as listed in “Unit Model

Number,” p. 7.

Compressor Nameplate

The compressor nameplate provides the following

information:

• Compressor model number. See “Compressor Model

Number,” p. 8.

• Compressor serial number. See “Compressor Serial

Number,” p. 8.

• Compressor electrical characteristics.

• Utilization range.

• Recommended refrigerant.

Figure 1. Typical unit nameplate

6 RTAE-SVX001B-EN

Model Number Descriptions

Unit Model Number

Digits 1,2 — Unit Model

RT = Rotary Chiller

Digits 3— Unit Type

A = Air-cooled

Digits 4 — Development Sequence

E = Development Sequence

Digits 5-7 — Nominal Capacity

149 = 150 NominalTons Single Circuit 164 = 165 NominalTons Single Circuit 150 = 150 NominalTons 165 = 165 NominalTons 180 = 180 NominalTons 200 = 200 Nominal Tons 225 = 225 Nominal Tons 250 = 250 Nominal Tons 275 = 275 Nominal Tons 300 = 300 Nominal Tons

Digit 8— Unit Voltage

A = 200/60/3 B = 230/60/3 C = 380/50/3 D = 380/60/3 E = 400/50/3 F = 460/60/3 G = 575/60/3 H = 400/60/3

Digit 9 — Manufacturing Location

U = Trane Commercial Systems,

Pueblo, CO USA

Digits 10, 11— Design Sequence

** = Factory assigned

Digit 12 — Unit Sound Package

1 = InvisiSound™ Standard Unit 2 = InvisiSound Superior

(Line Wraps, Reduced Fan Speed)

3 = InvisiSound Ultimate

(Compressor Sound Attenuation, Line Wraps, Reduced Fan Speed)

Digit 13 — Agency Listing

0 = No Agency Listing A = UL/CUL Listing C = CE European Safety Standard

Digit 14 — Pressure Vessel Code

A = ASME Pressure Vessel Code D = Australia PressureVessel Code C = CRN or Canada Equivalent

Pressure Vessel Code L = Chinese Pressure Vessel Code P = PED European Pressure Vessel

Code

Digit 15 — Factory Charge

1 = Refrigerant Charge HFC-134a 2 = Nitrogen Charge

Digit 16 — Evaporator

Application

F = Standard Cooling

(40 to 68°F/5.5 to 20°C)

G = LowTemp Process

(<40°F LeavingTemp)

C = Ice-making (20 to 68°F/-7 to 20°C)

w/ Hardwired Interface

Digit 17 — Evaporator Configuration

N = 2 Pass Evaporator P = 3 Pass Evaporator

Digit 18 — Evaporator Fluid

Type

1 = Water 2 = Calcium Chloride 3 = Ethylene Glycol 4 = Propylene Glycol 5 = Methanol

Digit 19 — Water Connection

X = Grooved Pipe F = Grooved Pipe + Flange

Digit 20 — Flow Switch

1 = Factory Installed - Other Fluid

(15 cm/s)

2 = Factory Installed - Water 2

(35 cm/s)

3 = Factory Installed - Water 3

(45 cm/s)

Digit 21 — Insulation

A = Factory Insulation - All Cold Parts

0.75”

B = Evaporator-Only Insulation -

High Humidity/Low EvapTemp

1.25”

Digit 22 — Unit Application

1 = Standard Ambient

(32 to 105°F/0 to 40.6°C)

2 = Low Ambient

(0 to 105°F/-17.7 to 40.6°C)

3 = Extreme Low Ambient

(-20 to 105°F/-28.9 to 40.6°C)

4 = High Ambient

(32 to 125°F/0 to 52°C)

5 = Wide Ambient

(0 to 125°F/-17.7 to 52°C)

Digit 23 — Condenser Fin Options

A = Aluminum Fins with Slits

D = CompleteCoat™ Epoxy Coated

Fins

Digits 24, 25 — Not Used

Digit 26 — Power Line Connection Type

A = Terminal Block C = Circuit Breaker D = Circuit Breaker w/ High Fault

Rated Control Panel

Digit 27 — Short Circuit Current Rating

A = Default A Short Circuit Rating B = High A Short Circuit Rating

Digit 28 — Transformer

0 = NoTransformer 1 = Factory Installed Transformer

Digit 29 — Line Voltage Harmonic Mitigation

X = Line Reactors (~30%TDD) 1 = Filter circuit (IEEE519 Compliant)

Digit 30 — Electrical

Accessories

0 = No Convenience Outlet C = 15A 115V convenience Outlet

(Type B)

Digit 31 — Remote Communication Options

0 = No Remote Digital

Communication

1 = LonTalk®Interface LCI-C

(Tracer™ Compatible)

2 = BACnet®MS/TP Interface

(Tracer compatible)

3 = ModBus™ Interface

Digit 32 — Hard Wire Communication

X = None

A = Hard Wired Bundle - All

B = Remote LeavingWaterTemp

Setpoint

C = Remote Leaving temp and

Demand Limit Setpoints D = Programmable Relay E = Programmable Relay and

Leaving Water and Demand Limit

Setpoint F = Percent Capacity G = Percent Capacity and Leaving

Water and Demand Limit Setpoint H = Percent Capacity and

Programmable Relay

Digit 33 — Not Used

RTAE-SVX001B-EN 7

Model Number Descriptions

Digit 34 — Structural Options

A = Standard Unit Structure B = Seismic to International Building

Code (IBC)

C = California Office of Statewide

Health Planning and Development (OSHPD) Certification

D = Wind Load for Florida Hurricane

175 MPH E = Seismic (IBC) and Wind Load F = OSHPD andWind Load

Digit 35 — Appearance Options

0 = No Appearance Options A = Architectural Louvered Panels

Digit 36 — Unit Isolation

0 = No Isolation 1 = Elastomeric Isolators 3 = Seismic Rated Isopads

Digit 37 — Not Used

0 = Not Used

Digit 38 — Not Used

0 = Not Used

Digit 39 — Special

0 = None S = Special

Compressor Model Number

Digits 1-4 — Compressor Type

CHHS= Positive displacement, helical

rotary (twin screw) hermetic compressor

Digit 5 — Frame Size

R = R Frame: 70 - 100 tons S = S Frame: 112 - 165 tons

Digit 6— Motor Length

B=145mm C=170mm E=165mm F=190mm

Digit 7 — Motor Winding

Characteristics

* = Factory assigned

Digit 8 — Volume Ratio

B = High Volume Ratio

Digit 9 — Refrigerant

1 = R-134a

Digits 10-11— Design Sequence

** = Factory assigned

Compressor Serial Number

Digits 1-2 — Year

YY = Last two digits of year of

manufacture

Digit 3— Week

WW= Week of build, from 00 to 52

Digit 5 — Day

1 = Monday 2 = Tuesday 3 = Wednesday 4 = Thursday 5 = Friday 6 = Saturday 7 = sunday

Digits 6-8 — Coded Time Stamp

TTT = Used to ensure uniqueness of

serial number

Digit 9 — Assembly Line

Assembly line compressor was built on.

Varies with facility

Digit 10— Build Location

A = Monterrey

8 RTAE-SVX001B-EN

General Information

Unit Description

The 150-300 ton Stealth™ units are helical-rotary type, air-

cooled liquid chillers designed for installation outdoors.

The compressor circuits are completely assembled,

hermetic packages that are factory-piped, wired, leaktested, dehydrated, and tested for proper control operation before shipment.

Chilled water inlet and outlet openings are covered for shipment.The Stealth featuresTrane’s exclusive Adaptive Control ™ logic, which monitors the control variables that govern the operation of the chiller unit. Adaptive Control logic can adjust capacity variables to avoid chiller shutdown when necessary, and keep producing chilled water. All unit sizes are available with two independent refrigerant circuits. A single refrigeration circuit option is available for 150 and 165T units. Each compressor is controlled by a variable speed Adaptive Frequency™ Drive Generation 3 (AFD provided with filter, sight glass, electronic expansion valve, and charging valves.The shell-and-tube type evaporator is manufactured in accordance with ASME standards or other international codes. Each evaporator is fully insulated and is equipped with water drain and vent connection. As an option, a convenience outlet can be supplied.

Units are shipped with full oil charge and can be ordered with either a factory refrigerant charge, or optional nitrogen charge.

). Each refrigerant circuit is

3

Accessory/Option Information

Check all the accessories and loose parts which are shipped with the unit against the shipping list. Included in these items will be water vessel drain plugs, electrical diagrams, and service literature, which are placed inside the control panel for shipment.

If optional elastomeric isolators are ordered with unit (model number digit 36 = 1), they are shipped mounted on diagonal supports on the end of the unit opposite control panel. See Figure 3 and Figure 4.

If optional seismic isopads are selected (model number digit 36= 2), they will be shipped inside the unit control panel.

Figure 3. Elastomeric isolator shipping location

Figure 2. Typical Stealth RTAE

Elastomeric Isolator

Shipping Locations

(not all isolators shown quantity varies with unit configuration)

Figure 4. Elastomeric isolators attached for shipping

RTAE-SVX001B-EN 9

General Data

Table 1. General data table

Unit Size (tons) 150 165 180 200 225 250 275 300 150SC 165SC

Compressor Model CHHSR CHHSR CHHSR CHHSR CHHSS CHHSS CHHSS CHHSS CHHSS CHHSS

Quantity # 2 2 2 2 2 2 2 2 1 1

Evaporator

Water Storage (gal) 17.5 18.7 21.9 23.9 26.6 28.7 33.0 36.0 17.3 17.3

(L) 66.1 70.9 82.8 90.5 100.6 108.8 125.0 136.1 65.6 65.6

2 Pass arrangement

Minimum Flow (gpm) 171 187 202 228 261 288 318 354 169 169

(l/s) 10.8 11.8 12.7 14.4 16.5 18.2 20.1 22.3 10.7 10.7

Maximum Flow (gpm) 626 684 742 835 957 1055 1165 1299 620 620

(l/s) 39.5 43.1 46.8 52.7 60.4 66.5 73.5 81.9 39.1 39.1

3 Pass arrangement

Minimum Flow (gpm) 114 124 135 152 174 192 212 236 113 113

(l/s) 7.2 7.8 8.5 9.6 11.0 12.1 13.4 14.9 7.1 7.1

Maximum Flow (gpm) 417 456 495 557 638 703 777 866 414 414

(l/s) 26.3 28.8 31.2 35.1 40.2 44.3 49.0 54.6 26.1 26.1

Condenser

Qty of Coils 8 10 10 12 12 12 14 16 8 10

Coil Length (in) 78.74 78.74 78.74 78.74 78.74 78.74 78.74 78.74 78.74 78.74

(mm) 2000 2000 2000 2000 2000 2000 2000 2000 2000 2000

Coil Height (in) 50 50 50 50 50 50 50 50 50 50

(mm) 1270 1270 1270 1270 1270 1270 1270 1270 1270 1270

Fins/Ft 192 192 192 192 192 192 192 192 192 192

Rows 3333333333

Condenser Fans

Quantity # 8 10 10 12 12 12 14 16 8 10

Diameter (in) 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5 37.5

(mm) 953 953 953 953 953 953 953 953 953 953

Total Airflow (cfm) 107,392 134,240 134,240 161,088 161,088 161,088 187,936 214,784 107,392 132,240

(m3/hr) 182,460 228,075 228,075 273,690 273,690 273,690 319,305 364,920 182,460 228,075

Tip Speed (ft/min) 8700 8700 8700 8700 8700 8700 8700 8700 8700 8700

(M/S) 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2 44.2

Ambient Temperature Range

Standard Ambient °F (°C) 32 to 105 (0 to 40.6)

Low Ambient °F (°C) 0 to 105 (-17.7 to 40.6)

Extreme Low Ambient °F (°C) -20 to 105 (-28.9 to 40.6)

High Ambient °F (°C) 32 to 125 (0 to 52)

Wide Ambient °F (°C) 0 to 125 (-17.7 to 52)

General Unit

Refrigerant HFC-134a HFC-134a

Refrigerant Ckts # 2 1

Minimum Load % 20 18 17 15 20 18 16 15 30 27

Refrigerant Charge/ckt (lbs) 172 181 210 218 265 261 318 325 322 346

(kg) 78 82 95 99 120 118 144 148 146 157

Oil Trane OIL00311 (bulk)/OIL00315 (1 gal)/OIL00317 (5 gal)

Oil Charge/ckt (gal) 3.0 3.0 3.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0

(L) 11.4 11.4 11.4 11.4 15.1 15.1 15.1 15.1 15.1 15.1

10 RTAE-SVX001B-EN

Drive Cooling System

Drive cooling fluid volumes are dependent on unit configuration.

• Use Table 2 for units that meet the following criteria:

• Model number digits 10, 11 = AA

• Use Table 2 for units that meet the following criteria:

• Model number digits 10, 11 = AB

• AND Digits 28, 29 = 0X

Table 2. Drive cooling with load inductor

Unit Size (tons)

Standard Length Unit

150 165-200 225-250 275-300

gal l gal l gal l gal l

Fluid Type Trane Heat Transfer Fluid CHM01023 Fluid Volume

Ckt 1 1.74 6.58 1.83 6.92 2.00 7.58 2.09 7.92

Ckt2 1.93 7.30 2.27 8.59 2.44 9.24 2.58 9.78

Total 3.67 13.88 4.10 15.51 4.44 16.82 4.67 17.69

• Use Table 2 for units that meet the following criteria:

• Model number digits 10, 11 = AC

• AND Digits 3-7 = 225, 250, 275 or 300

• AND Digit 22=1or2

• AND Digits 28, 29 = 0X

• Use Table 3 for all other unit configurations.

General Data

Table 3. Drive cooling without load inductor

Unit Size (tons)

Standard Length Unit Extended Length Units

150S - 165S 150 165-250 275-300 150S - 165S 150 165-250 275-300

gal l gal l gal l gal l gal l gal l gal l gal l

Fluid Type Trane Heat Transfer Fluid CHM01023 Fluid Volume

Ckt 1 1.28 4.86 1.14 4.30 1.23 4.64 1.32 4.98 1.37 5.20 1.30 4.93 1.32 4.98 1.41 5.33

Ckt2 n/a n/a 1.32 5.01 1.67 6.31 1.81 6.84 n/a n/a 1.67 6.31 1.81 6.84 1.95 7.38

Total 1.28 4.86 2.46 9.31 2.89 10.95 3.12 11.83 1.37 5.20 2.97 11.23 3.12 11.83 3.36 12.71

(a) Units are extended length if either of the following are selected: Transformer (model number digit 28 = 1) Harmonic Filtration Option (model number digit 29 = 1)

Units without Harmonic Filtration Option or Transformer (digits 28, 29 = 0X) are standard length.

NOTICE:

Equipment Damage!

Use only Trane Heat Transfer Fluid P/N CHM01023. This fluid is a direct use concentration and is not to be diluted. Do not top off with water or any other fluid. Use of unapproved fluids, or dilution of approved fluid could result in catastrophic equipment damage.

Note: The use of incorrect compounds in the drive

cooling system may result in scaling, erosion, corrosion or freezing.TheTrane Company warranty specifically excludes liability for corrosion, erosion, freezing or deterioration of

Trane equipment.

Proper fluid level is important to the operation of the unit. See “Drive Cooling ExpansionTank,” p. 71 for fluid level

Non-Trane approved chemicals could react with system components and result in failure. Contact a qualified service technician and your localTrane Parts Center.

check instructions. The circuit capacities are shown in tables above.

If the level is below the recommended minimum levels, contact your localTrane office.

Note: Drive cooling fluid service life is 5 years. See“Drive

Cooling System,” p. 71.

(a)

RTAE-SVX001B-EN 11

Pre-Installation

Unit Inspection

When unit is delivered, verify it is the correct unit and is

properly equipped. Compare information on the unit nameplate with ordering and submittal information. Inspect all exterior components for visible damage.Report any apparent damage or material shortage to carrier and make a “unit damage” notation on carrier’s delivery receipt. Specify extent and type of damage found and notifyTrane Sales Office. Do not proceed with installation of a damaged unit without sales office approval.

Inspection

To protect against loss due to damage in transit, complete

the following steps upon receipt of unit.

• Inspect the individual pieces of the shipment before

accepting the unit. Check for obvious damage to the unit or packing material.

• Inspect the unit for concealed damage as soon as

possible after delivery and before it is stored. Concealed damage must be reported within 15 days.

• If concealed damage is discovered, stop unpacking the

shipment. Do not remove damaged material from the receiving location.Take photos of the damage, if possible.The owner must provide reasonable evidence that the damage did not occur after delivery.

• Notify the carrier’s terminal of the damage

immediately, by phone and by mail. Request an immediate, joint inspection of the damage with the carrier and the consignee.

NotifyTrane sales representative and arrange for repair. Do not repair unituntil damage is inspectedby the carrier’s representative.

Storage

Extended storage of outdoor unit prior to installation requires these precautionary measures:

• Store the outdoor unit in a secure area.

• For units that have been charged with refrigerant, verify the following valves are closed on each circuit:

• Suction service valve (butterfly valve)

• Liquid line angle valve or EXV (EXV is driven closed

whenever circuit is powered)

• Oil line shutoff valves to brazed plate heat

exchangers

Note: Units with factory refrigerant charge (model

number digit 15 = 1) are shipped with suction, liquid and oil line shutoff valves closed, isolating most of refrigerant charge in the evaporator. If unit goes directly into long term storage, it is recommended that these valve positions be confirmed.

• For units with nitrogen charge option (model number digit 15 = 2), units are shipped with valves open. If unit goes directly into storage prior to refrigerant charge, confirm all service valves are open.

• At least every three months (quarterly), check the pressure in the refrigerant circuits to verify that the refrigerant charge is intact. If it is not, contact a qualified service organization and the appropriate

Trane sales office.

12 RTAE-SVX001B-EN

Installation Requirements

A list of the contractor responsibilities typically associated with the unit installation process is provided in Table 4.

Table 4. Installation requirements

Pre-Installation

Type

Foundation • Meet foundation requirements

Rigging

Disassembly/Reassembly (as required)

Isolation

Electrical

Water piping • Flow switch

Insulation • Insulation • Insulation

Water Piping Connection Components • Grooved pipe

Other Materials

“Stealth™ RTAE Installation Completion Check Sheet and Request for Trane Service” (RLC-ADF002-EN, see “Log and Check Sheet,” p. 90)

Chiller Start-up Commissioning

(a) Trane, or an agent of Trane specifically authorized to perform start-up and warranty of Trane® products, will perform or have direct on-site supervision of

the disassembly and reassembly work.

(b) Start-up must be performed by Trane or an agent of Trane specifically authorized to perform start-up and warranty of Trane

provide Trane (or an agent of Trane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the scheduled start-up.

(a)

(b)

Trane Installed

• Trane, or an agent of Trane specifically authorized to perform start-up of Trane products (contact your local Trane office for pricing)

• Circuit breakers (optional)

• Unit mounted starter

• R-134a refrigerant

• Dry nitrogen (optional)

• Trane, or an agent of Trane specifically authorized to perform start-up of Trane products

®

Trane Supplied

Trane Supplied Field Installed

• Elastomeric isolators (optional)

• Flange kit (optional)

Field Supplied Field Installed

• Safety chains

• Clevis connectors

• Lifting beam

• Spreader bar

• Elastomeric isolators (optional)

• Circuit breakers (optional)

• Electrical connections to unit mounted starter

• Wiring sizes per submittal and NEC

• Terminal lugs

• Ground connection(s)

• BAS wiring (optional)

• Control voltage wiring

• Chilled water pump contactor and wiring

• Option relays and wiring

• Taps for thermometers and gauges

• Thermometers

• Water flow pressure gauges

• Isolation and balancing valves in water piping

• Vents and drain

• Waterside pressure relief valves

• Water strainer

®

products. Contractor shall

RTAE-SVX001B-EN 13

Dimensions and Weights

Weights

Table 5. Weights

Standard Length Unit

Unit Size

(tons)

Shipping Operating Shipping Operating

lbs kg lbs kg lbs kg lbs kg

InvisiSound™ Standard or Superior

150S 9436 4280 9596 4353 11013 4995 11173 5068

165S 10451 4741 10611 4813 12011 5448 12171 5521

150 11333 5141 11479 5207 13492 6120 13638 6186

165 12377 5614 12533 5685 14532 6592 14688 6662

180 12698 5760 12880 5843 14853 6737 15035 6820

200 13808 6263 14007 6354 15991 7254 16213 7354

225 15244 6915 15466 7015 17427 7905 17649 8005

250 15622 7086 15861 7195 17805 8076 18044 8185

275 16820 7630 17095 7754 18975 8607 19250 8732

300 17965 8149 18265 8285 20121 9127 20421 9263

InvisiSound Ultimate

150S 10236 4643 10396 4716 11813 5358 11973 5431

165S 11251 5103 11411 5176 12811 5811 12971 5884

150 12133 5504 12279 5570 14292 6483 14438 6549

165 13177 5977 13333 6048 15332 6955 15488 7025

180 13498 6123 13680 6205 15653 7100 15835 7183

200 14608 6626 14807 6716 16791 7616 17013 7717

225 16044 7278 16266 7378 18227 8268 18449 8368

250 16422 7449 16661 7557 18605 8439 18844 8548

275 17620 7992 17895 8117 19775 8970 20050 9095

300 18765 8512 19065 8648 20921 9490 21221 9626

(a) Units are extended length if either of the following are selected: Transformer (model number digit 28 = 1) Harmonic Filtration Option (model number digit 29 = 1)

Units without Harmonic Filtration Option or Transformer (digits 28, 29 = 0X) are standard length. (b) Model number digit 12 = 1 or 2 (c) Model number digit 12 = 3

Extended Length Unit

(b)

(c)

(a)

Unit Dimensions

See unit submittals for specific unit dimensions and water connection locations.

Service Clearances

Figure 5. RTAE service clearances - top view

NO OBSTRUCTIONS ABOVE UNIT

Control

Panel

40”

(1016

mm)

See

note 1

85” (2160mm)

See note 2

36” (914.4mm)

24” (600.1mm)

14 RTAE-SVX001B-EN

NOTES:

1. A full 40” clearance is required in front of the control panel. Must be measured from front of panel, not end of unit base.

2. Clearance of 85” on the side of the unit is required for coil replacement. Preferred side for coil replacement is shown (left side of unit, as facing control panel), however either side is acceptable.

Installation Mechanical

Location Requirements

Sound Considerations

• Refer toTrane Engineering Bulletin Chiller Sound Ratings and Installation Guide RLC-PRB035-EN for

sound consideration applications.

• Locate the unit away from sound-sensitive areas.

• Install the optional elastomeric isolators under the unit. See

• Chilled water piping should not besupported by chiller frame.

• Install rubber vibration isolators in all water piping.

• Use flexible electrical conduit.

• Seal all wall penetrations.

Note: Consult an acoustical engineer for critical

Foundation

Provide rigid, non-warping mounting pads or a concrete foundation of sufficient strength and mass to support the applicable operating weight (i.e., including completed piping, and full operating charges of refrigerant, oil and water). See Table 5, p. 14 for unit operating weights. Once in place, the unit must be level within 1/4”(6.4 mm) across the length and width of the unit.TheTrane Company is not responsible for equipment problems resulting from an improperly designed or constructed foundation.

“Isolation and Sound Emission,” p. 20.

applications.

WARNING

Heavy Objects!

Ensure that all the lifting equipment used is properly rated for the weight of the unit being lifted. Each of the cables (chains or slings), hooks, and shackles used to lift the unit must be capable of supporting the entire weight of the unit. Lifting cables (chains or slings) may not be of the same length. Adjust as necessary for even unit lift. Other lifting arrangements could cause equipment or property damage. Failure to follow instructions above or properly lift unit could result in unit dropping and possibly crushing operator/ technician which could result in death or serious injury.

WARNING

Proper Lifting Configuration Required!

Use only lift locations designated with label shown in

Figure 6. Do NOT use locations marked with label

shown in Figure 7. Use unit lifting configurations as shown in Table 6 and Figure 8, p. 16 thru Figure 10,

p. 17. Other lifting arrangements could result in death,

serious injury or equipment damage.

Figure 6. Label - lift location

Clearances

Provide enough space around the unit to allow the installation and maintenance personnel unrestricted access to all service points. See submittal drawingsfor the unit dimensions, to provide sufficient clearance for the opening of control panel doors and unit service. See

Figure 5, p. 14 for minimum clearances. In all cases, local

codes which require additional clearances will take precedence over these recommendations.

For close spacing information, see RLC-PRB037-EN.

Rigging

WARNING

Improper Unit Lift!

Test lift unit approximately 24 inches to verify proper

center of gravity lift point. To avoid dropping of unit, reposition lifting point if unit is not level. Failure to properly lift unit could result in unit dropping and possibly crushing operator/technician which could result in death or serious injury and possible equipment or property-only damage.

X39003897001A

Figure 7. Label - do not lift

X39003894001A

Important:

• Do not fork lift unit.

• See unit nameplate and/or unit submittal for total

shipping weight.

• See Table 6 and Figure 8 thru Figure 10 for unit lifting configuration.

• See Table 7, p. 18 and Table 8, p. 19 for lift weights and dimensions at each lifting point locations.

• See Table 9, p. 20 for center of gravity information.

RTAE-SVX001B-EN 15

Installation Mechanical

Table 6. Lifting configuration selection

Tons Unit Length

150S, 165S, 150 Standard and Extended

165, 180, 200, 225, 250 Standard

165, 180, 200, 225, 250 Extended

275 Standard

275 Extended

300 Standard and Extended

(a) Units are extended length if either of the following are selected: Transformer (model number digit 28 = 1) Harmonic Filtration Option (model number digit 29 = 1)

Units without Harmonic Filtration Option or Transformer (digits 28, 29 = 0X) are standard length.

Figure 8. 4-point lift configuration

96” (2438mm) Spreader Bar

(a)

Lift Configuration See

4-point Figure 8, p. 16

6-point Figure 9, p. 17

8-point Figure 10, p. 17

Control Panel

Lifting Location 1 (Lifting location 4 located on other side of unit)

Lifting Location 2 (Lifting location 3 located on other side of unit)

16 RTAE-SVX001B-EN

Figure 9. 6-point lift configuration

96” (2438mm) Spreader Bar

96”

(2438mm)

Spreader Bar

Installation Mechanical

Lifting Location 3 (Lifting location 4 located on other side of unit)

Lifting Location 2 (Lifting location 5 located on other side of unit)

Control Panel

Figure 10. 8-point lift configuration

96” (2438mm) Spreader Bar Qty 2

Control Panel

Lifting Location 1 (Lifting location 6 located on other side of unit)

Lifting Location 4 (Lifting location 5 located on other side of unit)

Lifting Location 3 (Lifting location 6 located on other side of unit)

Lifting Location 2 (Lifting location 5 located on other side of unit)

Lifting Location 1 (Lifting location 8 located on other side of unit)

RTAE-SVX001B-EN 17

Installation Mechanical

Table 7. Lift weights by location

Location

12345678

Tons lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg

Standard Length Unit

150S 2540 1152 2451 1112 2164 981 2281 1034 - - - - - - - -

165S 2656 1205 2352 1067 2730 1238 2713 1230 - - - - - - - -

150 3426 1554 2638 1197 2234 1014 3035 1377 - - - - - - - -

165 3452 1566 2876 1304 2810 1275 3239 1469 - - - - - - - -

180 3528 1600 2941 1334 2896 1314 3333 1512 - - - - - - - -

200 3586 1627 3325 1508 3316 1504 3581 1624 - - - - - - - -

225 4003 1816 3551 1611 3617 1641 4073 1847 - - - - - - - -

250 4098 1859 3637 1650 3711 1683 4176 1894 - - - - - - - -

275 2484 1127 1943 881 3683 1671 3829 1737 2255 1023 2625 1191 - - - -

300 2061 935 2289 1038 2515 1141 1682 763 2729 1238 3008 1364 1737 788 1943 881

Extended Length Unit

150S 2698 1224 2597 1178 2837 1287 2881 1307 - - - - - - - -

165S 2988 1356 2841 1289 3135 1422 3047 1382 - - - - - - - -

150 3825 1735 3363 1525 2920 1324 3384 1535 - - - - - - - -

165 2653 1203 2629 1192 2570 1166 1959 889 2046 928 2675 1213 - - - -

180 2685 1218 2674 1213 2641 1198 1946 883 2100 953 2807 1273 - - - -

200 2919 1324 2640 1198 2797 1269 2846 1291 2274 1032 2514 1141 - - - -

225 3065 1391 2705 1227 3237 1468 3144 1426 2406 1091 2870 1302 - - - -

250 3117 1414 2749 1247 3322 1507 3229 1465 2458 1115 2930 1329 - - - -

275 2145 973 2668 1210 3279 1487 1513 686 2412 1094 2482 1126 1644 746 2831 1284

300 2056 933 2440 1107 3452 1566 2241 1017 3089 1401 2993 1358 1460 662 2389 1084

(a) Units are extended length if either of the following are selected: Low Harmonic Distortion Option (model number digit 29 = 1) Autotransformer (model number digit 28 = 1 or 2)

Units without Low Harmonic Distortion Option or Autotransformer (digits 28, 29 = X0) are standard length.

(a)

18 RTAE-SVX001B-EN

Installation Mechanical

Table 8. Lifting locations (from control panel end of frame)

Location

12345678

Tons in mm in mm in mm in mm in mm in mm in mm in mm

Standard Length Unit

150S 45.5 1156 45.5 1156 153.9 3909 153.9 3909 --------

165S 23.5 596 23.5 596 189.7 4818 189.7 4818 --------

150 39.6 1006 39.6 1006 171.4 4353 171.4 4353 --------

165 60.4 1534 60.4 1534 224.6 5705 224.6 5705 --------

180 60.4 1534 60.4 1534 224.6 5705 224.6 5705 --------

200 53.3 1355 53.3 1355 258.7 6570 258.7 6570 --------

225 53.3 1355 53.3 1355 258.7 6570 258.7 6570 --------

250 53.3 1355 53.3 1355 258.7 6570 258.7 6570 --------

275 75.8 1926 75.8 1926 190.7 4845 190.7 4845 311.9 7922 311.9 7922 - - - -

300 47.6 1210 47.6 1210 171.3 4350 171.3 4350 242.8 6168 242.8 6168 365.1 9274 365.1 9274

Extended Length Unit

150S 23.5 596 23.5 596 207.1 5261 207.1 5261 --------

165S 23.5 596 23.5 596 242.9 6170 242.9 6170 --------

150 44.7 1136 44.7 1136 224.6 5705 224.6 5705 --------

165 61.1 1552 61.1 1552 171.3 4350 171.3 4350 277.8 7057 277.8 7057 - - - -

180 61.1 1552 61.1 1552 171.3 4350 171.3 4350 277.8 7057 277.8 7057 - - - -

200 47.6 1210 47.6 1210 190.7 4845 190.7 4845 311.9 7922 311.9 7922 - - - -

225 47.6 1210 47.6 1210 190.7 4845 190.7 4845 311.9 7922 311.9 7922 - - - -

250 47.6 1210 47.6 1210 190.7 4845 190.7 4845 311.9 7922 311.9 7922 - - - -

275 75.8 1926 75.8 1926 182.0 4623 182.0 4623 258.5 6565 258.5 6565 365.1 9274 365.1 9274

300 47.6 1210 47.6 1210 168.5 4280 168.5 4280 296.1 7520 296.1 7520 418.3 10626 418.3 10626

(a) Units are extended length if either of the following are selected: Low Harmonic Distortion Option (model number digit 29 = 1) Autotransformer (model number digit 28 = 1 or 2)

Units without Low Harmonic Distortion Option or Autotransformer (digits 28, 29 = X0) are standard length.

(a)

RTAE-SVX001B-EN 19

Installation Mechanical

Center of Gravity

Figure 11. Center of gravity

CG

X

SIDE VIEW

CG

Z

Y

END VIEW

(Non-Control Panel End)

Table 9. Centers of gravity

CGx CGy CGz

Tons

150S 96.6 2454 43.8 1112 40.4 1025

165S 110.0 2793 45.2 1149 42.8 1087

150 105.5 2679 43.9 1115 37.5 953

165 142.4 3617 43.9 1115 39.7 1008

180 142.8 3628 43.9 1115 39.4 1002

200 155.5 3951 43.9 1115 41.2 1047

225 156.1 3964 43.9 1115 39.8 1011

250 156.4 3973 43.9 1115 39.7 1008

275 194.1 4930 43.9 1115 41.1 1043

300 207.1 5260 43.9 1115 42.4 1076

150S 118.8 3017 44.1 1121 37.2 944

165S 136.4 3464 44.7 1137 39.4 1002

150 134.7 3421 43.9 1115 33.3 846

165 169.1 4295 43.9 1115 35.4 898

180 169.9 4314 43.9 1115 35.2 894

200 181.6 4613 43.9 1115 36.9 937

225 183.6 4665 43.9 1115 36.0 915

250 184.2 4680 43.9 1115 36.0 913

275 220.2 5594 43.9 1115 37.4 950

300 232.3 5900 43.9 1115 38.7 984

(a) Units are extended length if either of the following are selected: Low Harmonic Distortion Option (model number digit 29 = 1) Autotransformer (model number digit 28 = 1 or 2)

Units without Low Harmonic Distortion Option or Autotransformer (digits 28, 29 = X0) are standard length.

in mm in mm in mm

Standard Length Unit

Extended Length Unit

(a)

Isolation and Sound Emission

The most effective form of isolation is to locate the unit

away from any sound sensitive area. Structurally transmitted sound can be reduced by elastomeric vibration eliminators. Spring isolators are not recommended. Consult an acoustical engineer in critical sound applications.

For maximum isolation effect, isolate water lines and electrical conduit.Wall sleeves and rubber isolated piping hangers can be used to reduce the sound transmitted through water piping.To reduce the sound transmitted through electrical conduit, use flexible electrical conduit.

State and local codes on sound emissions should always be considered. Since the environment in which a sound source is located affects sound pressure, unit placement must be carefully evaluated. Sound power levels for Stealth chillers are available on request.

Unit Isolation and Leveling

For additional reduction of sound and vibration, install the optional elastomeric isolators.

Construct an isolated concrete pad for the unit or provide concrete footings at the unit mounting points. Mount the unit directly to the concrete pads or footings.

Level the unit using the base rail as a reference.The unit must be level within 1/4-in (6 mm) over the entire length and width. Use shims as necessary to level the unit.

Elastomeric Isolators (Optional for units without seismic rating)

Note: See unit submittal, or Table 11, p. 21 thru Table 13,

p. 23 for point weights, isolator location and

isolator selections.

1. Secure the isolators to the mounting surface using the mounting slots in the isolator base plate. Do not fully tighten the isolator mounting bolts at this time.

2. Align the mounting holes in the base of the unit with the threaded positioning pins on the top of the isolators.

3. Lower the unit onto the isolators and secure the isolator to the unit with a nut.

4. Level the unit carefully. Fully tighten the isolator mounting bolts.

20 RTAE-SVX001B-EN

Installation Mechanical

5.

Figure 12. Elastomeric isolator

5.0 in

0.50 in

Mounting molded in neoprene

3.0 in

0.56 in

1.60 ± .25 in

2.75 in

1/2 - 13NC - 2B

4.63 in

Elastomeric Isolation Pads for Seismic Option

Elastomeric pads ship inside the unit control panel.They are provided with an isolation washer and 3/4” free hole in the center of the plate.

Figure 13. Seismic isolation pad — installed

Table 10. Seismically rated elastomeric isolation pad

Dimension (in)

Model Max Load Length Width Height

B-36 2520 6 6 .625

Figure 14. Mounting point locations

2468 10

(a)

0.38 in

Max Load

(lbs) Color

2250 RED 0.50 RDP-4

3000 GREEN 0.50 RDP-4

Maximum

Deflection (in) Type

Control panel

13579

(a) Quantity of isolators varies with unit. Shorter units will not use locations

5 and 6. See submittal for actual number required for specific unit.

Table 11. Point weights

Location

12345678910

Tons lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg

Standard Length

150S 1731 785 1664 755 1834 832 1773 804 1219 553 1375 624 --------

165S 1666 756 1559 707 1886 855 1870 848 1914 868 1716 778 --------

150 1452 659 1543 700 1326 602 1446 656 1464 664 1350 612 1490 676 1262 572 ----

165 1539 698 1341 608 1622 736 1553 704 1657 752 1607 729 1522 690 1536 697 ----

180 1536 697 1338 607 1676 760 1620 735 1709 775 1659 753 1579 716 1581 717 ----

200 1442 654 1764 800 1696 769 1810 821 1836 833 1694 768 1986 901 1580 717 ----

225 1430 649 1792 813 1999 907 2058 933 2111 958 1994 905 2139 970 1721 781 ----

250 1426 647 1803 818 2064 936 2144 973 2182 990 2055 932 2195 996 1753 795 ----

275 1624 737 1627 738 1802 817 1746 792 1795 814 1530 694 1653 750 1831 830 1577 715 1634 741

300 1634 741 1850 839 1871 849 1925 873 1898 861 1938 879 1887 856 1695 769 1752 795 1515 687

RTAE-SVX001B-EN 21

Installation Mechanical

Table 11. Point weights (continued)

Location

12345678910

Tons lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg lb kg

Extended Length Unit

150S 1553 704 1795 814 1974 895 1959 889 2088 947 1804 818 --------

165S 1344 610 1236 561 1537 697 1494 678 1686 765 1668 757 1636 742 1570 712 ----

150 1563 709 1621 735 1705 773 1875 850 1952 885 1575 714 1601 726 1601 726 ----

165 1776 806 1827 829 1956 887 1925 873 2058 933 1958 888 1517 688 1515 687 ----

180 1774 805 1822 827 1990 903 1975 896 2128 965 2030 921 1577 715 1557 706 ----

200 1706 774 1524 691 1662 754 1294 587 1938 879 1738 788 1267 575 1753 795 1457 661 1652 749

225 1857 842 1669 757 1844 836 1412 640 2156 978 1860 844 1378 625 1985 900 1501 681 1766 801

250 1852 840 1664 755 1885 855 1439 653 2219 1006 1936 878 1438 652 2046 928 1530 694 1795 814

275 1874 850 1860 844 1626 737 1700 771 2204 1000 2101 953 2017 915 2131 967 1820 826 1642 745

300 1946 883 1826 828 1854 841 1795 814 2143 972 2106 955 2408 1092 2338 1060 1808 820 1898 861

(a) Units are extended length if either of the following are selected: Low Harmonic Distortion Option (model number digit 29 = 1) Autotransformer (model number digit 28 = 1 or 2)

Units without Low Harmonic Distortion Option or Autotransformer (digits 28, 29 = X0) are standard length.

(a)

Table 12. Isolator locations

(a)

Location

12345678910

Tons in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm

Standard Length

150S 23.6 600 27.6 700 102.4 2600 94.5 2400 187.0 4750 187.0 4750 --------

165S 15.7 400 23.0 585 98.4 2500 102.2 2595 196.9 5000 204.7 5200 --------

150 24.4 620 11.8 300 47.2 1200 82.7 2100 100.4 2550 153.5 3900 188.2 4780 188.2 4780 ----

165 17.7 450 23.0 585 98.6 2505 102.2 2595 155.5 3950 190.6 4840 242.1 6150 242.9 6170 ----

180 17.7 450 23.0 585 98.6 2505 102.2 2595 155.5 3950 190.6 4840 242.1 6150 242.9 6170 ----

200 23.6 600 23.6 600 102.4 2600 137.8 3500 155.5 3950 198.8 5050 255.9 6500 263.8 6700 ----

225 23.6 600 23.6 600 102.4 2600 137.8 3500 155.5 3950 198.8 5050 255.9 6500 263.8 6700 ----

250 23.6 600 23.6 600 102.4 2600 137.8 3500 155.5 3950 198.8 5050 255.9 6500 263.8 6700 ----

275 21.7 550 18.9 480 141.3 3590 125.2 3180 196.1 4980 236.2 6000 236.2 6000 259.8 6598 328.0 8330 324.4 8240

300 19.7 500 27.6 700 143.1 3634 143.1 3634 202.4 5142 235.6 5984 257.9 6551 296.6 7534 347.8 8834 339.5 8624

Extended Length Unit

150S 19.7 500 15.7 400 102.4 2600 133.9 3400 204.7 5200 208.7 5300 --------

165S 23.6 600 23.6 600 86.6 2200 78.7 2000 149.6 3800 157.5 4000 259.8 6600 259.8 6600 ----

150 25.0 635 23.6 600 84.6 2150 98.4 2500 147.6 3750 190.9 4850 240.2 6100 240.2 6100 ----

165 19.7 500 19.7 500 129.9 3300 129.9 3300 204.7 5200 234.3 5950 293.3 7450 299.2 7600 ----

180 19.7 500 19.7 500 129.9 3300 129.9 3300 204.7 5200 234.3 5950 293.3 7450 299.2 7600 ----

200 25.6 650 19.7 500 118.1 3000 98.4 2500 208.7 5300 196.9 5000 255.9 6500 255.9 6500 315.0 8000 315.0 8000

225 25.6 650 19.7 500 118.1 3000 98.4 2500 208.7 5300 196.9 5000 255.9 6500 255.9 6500 315.0 8000 315.0 8000

250 25.6 650 19.7 500 118.1 3000 98.4 2500 208.7 5300 196.9 5000 255.9 6500 255.9 6500 315.0 8000 315.0 8000

275 6.3 160 9.8 250 177.2 4500 139.8 3550 198.8 5050 242.1 6150 309.1 7850 313.0 7950 354.3 9000 370.1 9400

300 9.8 250 9.8 250 177.2 4500 139.8 3550 206.7 5250 242.1 6150 311.8 7920 313.4 7960 393.7 10000 393.7 10000

(a) Dimensions are referenced from end of frame on the control panel side. (b) Units are extended length if either of the following are selected: Low Harmonic Distortion Option (model number digit 29 = 1) Autotransformer (model number digit 28 = 1 or 2)

Units without Low Harmonic Distortion Option or Autotransformer (digits 28, 29 = X0) are standard length.

(b)

22 RTAE-SVX001B-EN

Installation Mechanical

Table 13. Isolator selections

Location

Tons 1 2 3 4 5 6 7 8 9 10

Standard Length Unit

150S Red 62 Red 62 Red 62 Red 62 Red 62 Red 62 - - - -

165S Red 62 Red 62 Red 62 Red 62 Red 62 Red 62 - - - -

150 Red 62 Red 62

165 Red 62 Red 62

180 Red 62 Red 62

200 Red 62 Red 62

225 Red 62 Red 62

250 Red 62 Red 62

275 Red 62 Red 62

300 Red 62 Red 62

150S Red 62 Red 62 Green 63 Green 63 Green 63 Red 62 - - - -

165S Red 62 Red 62 Red 62 Red 62 Red 62 Red 62 Red 62 Red 62 - -

150 Red 62 Red 62

165 Red 62 Red 62

180 Red 62 Red 62

200 Red 62 Red 62

225 Red 62 Red 62

250 Red 62 Red 62

275 Red 62 Red 62

300 Red 62 Red 62

(a) Units are extended length if either of the following are selected: Low Harmonic Distortion Option (model number digit 29 = 1) Autotransformer (model number digit 28 = 1 or 2)

Units without Low Harmonic Distortion Option or Autotransformer (digits 28, 29 = X0) are standard length.

Green 63 Green 63 Green 63 Green 63 Red 62 Red 62 - -

Green 63 Green 63 Green 63 Green 63 Green 63 Green 63 Red 62 Red 62

Extended Length Unit

Green 63 Green 63 Green 63 Green 63 Red 62 Red 62 - -

Green 63 Green 63 Green 63 Green 63 Green 63 Green 63 Red 62 Red 62

(a)

Compressor Shipping Bolt Removal

Units with InvisiSound™ Ultimate Option (Model Number Digit 12 = 3)

For chillers built with InvisiSound Ultimate option, compressor shipping bolts must be removed to assure minimum noise during operation. Use a 24mm socket to remove the (3) M15 x 75mm shipping bolts for each compressor.They are located under compressor mounting feet. See Figure 15.

Important:

• DO NOT DISCARD SHIPPING BOLTS. Store bolts in the

control panel for future use.

• All shipping bolts MUST be reinstalled prior to compressor removal or unit move.

Figure 15. Compressor shipping bolt removal

Isolator

Compressor

Mounting

Foot

Shipping Bolt

Drainage

NOTICE:

Equipment Damage!

Do not remove compressor or move unit without reattaching compressor shipping bolts. Failure to reinstall bolts could cause shifting of parts and result in equipment damage.

RTAE-SVX001B-EN 23

Locate the unit near a large capacity drain for water vessel drain-down during shutdown or repair. Evaporators are provided with drain connections. A vent on top of evaporator waterbox prevents vacuum byallowing airinto evaporator for complete drainage. All local and national codes apply.

Installation Mechanical

Evaporator Piping

RTAE units are available with 2 or 3 pass configurations. See Figure 16.

Figure 16. Evaporator pass configurations

Control Panel End

Outlet Waterbox

2-Pass Evaporators

Top V i ew

(Condenser removed for clarity)

3-Pass Evaporators

Top V i ew

(Condenser removed for clarity)

Inlet Water Connection

Outlet Water Connection

Inlet Waterbox

Outlet

End View

(Non-control panel end)

Inlet

End View

Inlet Waterbox (Outlet waterbox opposite end)

NOTICE:

Evaporator water connections are grooved.

Thoroughly flush allwater piping tothe unitbefore making

Proper Water Treatment!

The use of untreated or improperly treated water could

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 water treatment, if any, is required. Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.

the final piping connections to the unit.

Components and layout will vary slightly, depending on the location of connections and the water source.

A vent is provided on the top of the evaporator at the chilled water inlet. Be sure to provide additional vents at high points in the piping to bleed air from the chilled water system. Install necessary pressure gauges to monitor the entering and leaving chilled water pressures.

Provide shutoff valves in lines to the gauges to isolate

NOTICE:

Evaporator Damage!

The chilled water connections to the evaporator are to

be “victaulic” type connections. Do not attempt to weld these connections, as the heat generated from welding can cause microscopic and macroscopic fractures on the cast iron waterboxes that can lead to premature failure of the waterbox. To prevent damage to chilled water components, do not allow evaporator pressure (maximum working pressure) to exceed 150

them from the system when they are not in use. Use rubber vibration eliminators to prevent vibration transmission through the water lines.

If desired, install thermometers in the lines to monitor entering and leaving water temperatures. Install a balancing valve in the leaving water line to control water flow balance. Install shutoff valves on both the entering and leaving water lines so that the evaporator can be isolated for service

psig (10.5 bar).

24 RTAE-SVX001B-EN

Installation Mechanical

Evaporator Piping Components

operating safety. SeeThese components and their general locations are given below.

Piping components include all devices and controls used to provide proper water system operation and unit

Figure 17. Typical Stealth™ water piping

6

5

8

4

B

7

2

8

C

3

2

A

1

A

2

A

Table 14. Water piping components

Item Description Item Description

1 Bypass Valve Pi Pressure Gauge

2 Isolation Valve FT Water Flow Switch

3 Vibration Eliminator T1 Evap Water Inlet Temp Sensor

4 Evaporator - End View (2-pass) T2 Evap Water Outlet Temp Sensor

5 Evaporator Waterbox (2-pass)

6 Vent A Isolate unit for initial water loop cleaning

7 Strainer B Vent must be installed at the high point of the line

8 Drain C Drain must be installed at the low point of the line

NOTES

Entering Chilled Water Piping

• Air vents (to bleed air from system).

• Water pressure gauges with shutoff valves.

• Vibration eliminators.

• Shutoff (isolation) valves.Thermometers (if desired).

• Clean-out tees.

• Pipe strainer.

Leaving Chilled Water Piping

• Air vents (to bleed air from system).

• Water pressure gauges with shutoff valves.

• Vibration eliminators.

• Shutoff (isolation) valves.

• Thermometers.

Drains

A 1/2” drain connection is located under outlet end of evaporator waterbox for drainage during unit servicing.A shutoff valve must be installed on drain line.

Pressure Gauges

Install field-supplied pressure components as shown in

Figure 17, p. 25. Locate pressure gauges or taps in a

straight run of pipe; avoid placement near elbows, etc. Be sure to install the gauges at the same elevation on each shell if the shells have opposite-end water connections.

To read manifolded pressure gauges, open one valve and

close the other (depending upon the reading desired).This eliminates errors resulting from differently calibrated gauges installed at unmatched elevations.

• Clean-out tees.

• Balancing valve.

RTAE-SVX001B-EN 25

Installation Mechanical

Pressure Relief Valves

NOTICE:

Evaporator Damage!

To prevent shell damage, install pressure relief valves in

the evaporator water system.

Install a water pressure relief valve in the evaporator inlet piping between the evaporator and the inlet shutoff valve, as shown in Figure 17, p. 25. Water vessels with close- coupled shutoff valves have a high potential for hydrostatic pressure buildup on a water temperature increase. Refer to applicable codes for relief valve installation guidelines.

Evaporator Flow Switch

NOTICE:

Equipment Damage!

Flow switch is on a 24V circuit. Do NOT apply 120V to the flow switch. Incorrect voltage application could cause damage to the flow switch.

The flow switch is factory-installed and programmed

based on the operating conditions submitted with the order.The leaving evaporator temperature, fluid type and fluid concentration affect the selected flow switch. If the operating conditions on the job site change, the flow switch may need to be replaced. Contact your localTrane Sales office for more information.

The sensor head includes 3 LEDs, two yellow and one

green.Wait 15 seconds after poweris applied to the sensor before evaluating LEDs for flow status. When wired correctly and flow is established, only the green LED should be lit. Following are the LED indicators:

• Green ON, both yellow OFF — Flow

• Green and outside yellow ON — No Flow

• Center yellow ON continuously — Miswire

Factory installed jumper wire W11 must be removed if using auxiliary contacts and/or additional proof of flow. See schematics in RTAE-SVE01*-EN for more details.

Indexing Flow Switch

To properly index the flow switch, the following

requirements must be met:

• The dot must be at a position no greater than 90° off Index.

• The torque must be between 22 ft-lb minimum and 74 ft-lb maximum.

• A minimum distance of 5x pipe diameter must be maintained between flow switch and any bends, valves, changes in cross sections, etc.

Figure 18. Proper flow switch indexing

Top V ie w

Flow

Index

The flow switch must have the dot in the shaded area to the left of this line for proper indexing (±90° off Index)

NOTICE:

Equipment Damage!

Incorrect wiring of auxiliary contacts could cause equipment damage.

If using auxiliary flow sensing, both yellow LEDs come on initially when flow is stopped.The center yellow LED will turn off after approximately 7 seconds.The LED indicators are otherwise the same as indicated above.

26 RTAE-SVX001B-EN

Evaporator Waterside Pressure Drop Curves

0

2.5

5

7.5

10

12.5

15

17.5

20

22.5

25

27.5

30

32.5

35

37.5

40

42.5

45

47.5

50

0 200 400 600 800 1000 1200 1400

Pressure Drop (ft. H2O)

Water Flow (GPM)

pp

300T

275T

250T

225T

200T

185T

165T

150T

150S, 165S

Figure 19. Evaporator waterside pressure drop curve — 2-pass

Installation Mechanical

RTAE-SVX001B-EN 27

Installation Mechanical

0

5

10

15

20

25

30

35

40

45

50

55

60

65

70

75

0 100 200 300 400 500 600 700 800 900 1000

Pressure Drop (ft. H2O)

Water Flow (GPM)

300T

275T

250T

225T

200T

185T

165T

150T

150S, 165S

Figure 20. Evaporator waterside pressure drop curve — 3-pass

28 RTAE-SVX001B-EN

Freeze Protection

One or more of the ambient freeze avoidance methods in

Table 15 must be used to protect the Stealth chiller from

ambient freeze damage.

Table 15. RTAC freeze avoidance methods

Protects to

Method

Water Pump Control AND Heaters

Freeze Inhibitor

Drain Water Circuit Below -20°F

ambient temperature Notes

• Heaters alone will provide low ambient protection down to -20°F (-29°C), but will NOT protect the evaporator from freezing as a result of charge migration. Therefore, it is required that water pump control be used in conjunction with heaters.

• Heaters are factory-installed on the evaporator and water piping and will protect them from freezing

• Install heat tape on all water piping, pumps, and other components that may be damaged if exposed to freezing temperatures. Heat tape must be designed for low ambient temperature applications. Heat tape selection should be based on the lowest expected ambient temperature.

• Tracer™ UC800 controller can start the pump when freezing conditions are detected. For this option the pump must to be controlled by the Stealth unit and this function must be validated.

• Water circuit valves need to stay open at all times.

• Water pump control and heater combination will protect the evaporator down to any

Down to -20°F

Varies. See “Low

Evaporator Refrigerant Cutout, Glycol Requirements,” p. 30

ambient temperature provided power is available to the pump and the controller. This option will NOT protect the evaporator in the event of a power failure to the chiller unless backup power is supplied to the necessary components.

• When no chiller operation is possible and the pump is already off, UC800 pump control for freeze protection will command the pump to turn: ON if average of the evaporator entering water temperature, the evaporator leaving water temperature, and the evaporator refrigerant pool temperature is less than Low Evaporator Refrigerant Temperature Cutout (LERTC) + 4°F for a period of time. OFF again if the evaporator refrigerant pool temperature rises above the LERTC + 6°F for a period of time.

Note: Time period referenced for ON and Off conditions above is dependent on past running conditions and present temperatures measured.

ON if entering OR leaving water temperature< LWTC for 30°F-sec (17°C-sec) OFF again if water temperature > LWTC for 30 min

• Freeze protection can be accomplished by adding sufficient glycol to protect against freezing below the lowest ambient expected.

• Use of glycol type antifreeze reduces the cooling capacity of the unit and must be considered in the design of the system specifications.

• Shut off the power supply to the unit and to all heaters.

• Purge the water circuit.

• Blow out the evaporator to ensure no liquid is left in the evaporator.

Installation Mechanical

NOTICE:

Evaporator Damage!

If insufficient concentration or no glycol is used, the evaporator water flow must be controlled by the UC800

AND heaters must be used to avoid catastrophic

damage to the evaporator due to freezing. It is the responsibility of the installing contractor and/or the customer to ensure that a pump will start when called upon by the chiller controls. Refer to RLC-PRB012-EN. Even with water pump control, a power loss of as little as 15 minutes under freezing conditions can damage the evaporator. Only the proper addition of freeze inhibitor or complete drainage of the water circuit can ensure no evaporator damage in the event of a power failure.

RTAE-SVX001B-EN 29

Installation Mechanical

Low Evaporator Refrigerant Cutout, Glycol Requirements

The table below shows the low evaporator temperature

cutout for different glycol levels. Additional glycol beyond the recommendations will adversely effect unit performance.The unit efficiency will be reduced and the saturated evaporator temperature will be reduced. For

Note: Table below is not a substitute for full unit

simulation for proper prediction of unit performance for specific operating conditions. For information on specific conditions, contact Trane product support.

some operating conditions this effect can be significant.

If additional glycol is used, then use the actual percent glycol to establish the low refrigerant cutout setpoint.

Table 16. Low evaporator refrigerant temperature cutout (LERTC) and low water temperature cutout (LWTC)

Ethylene Glycol Propylene Glycol

Glycol

Percentage

(%)

0 32.0 28.6 35.0 0 32.0 28.6 35.0

2 31.0 27.6 34.0 2 31.0 27.6 34.0

4 29.7 26.3 32.7 4 29.9 26.5 32.9

5 29.0 25.6 32.0 5 29.3 25.9 32.3

6 28.3 24.9 31.3 6 28.7 25.3 31.7

8 26.9 23.5 29.9 8 27.6 24.2 30.6

10 25.5 22.1 28.5 10 26.4 23.0 29.4

12 23.9 20.5 26.9 12 25.1 21.7 28.1

14 22.3 18.9 25.3 14 23.8 20.4 26.8

15 21.5 18.1 24.5 15 23.1 19.7 26.1

16 20.6 17.2 23.6 16 22.4 19.0 25.4

18 18.7 15.3 21.7 18 20.9 17.5 23.9

20 16.8 13.4 19.8 20 19.3 15.9 22.3

22 14.7 11.3 17.7 22 17.6 14.2 20.6

24 12.5 9.1 15.5 24 15.7 12.3 18.7

25 11.4 8.0 14.4 25 14.8 11.4 17.8

26 10.2 6.8 13.2 26 13.8 10.4 16.8

28 7.7 4.3 10.7 28 11.6 8.2 14.6

30 5.1 1.7 8.1 30 9.3 5.9 12.3

32 2.3 -1.1 5.3 32 6.8 3.4 9.8

34 -0.7 -4.1 5.0 34 4.1 0.7 7.1

35 -2.3 -5.0 5.0 35 2.7 -0.7 5.7

36 -3.9 -5.0 5.0 36 1.3 -2.1 5.0

38 -7.3 -5.0 5.0 38 -1.8 -5.0 5.0

40 -10.8 -5.0 5.0 40 -5.2 -5.0 5.0

42 -14.6 -5.0 5.0 42 -8.8 -5.0 5.0

44 -18.6 -5.0 5.0 44 -12.6 -5.0 5.0

45 -20.7 -5.0 5.0 45 -14.6 -5.0 5.0

46 -22.9 -5.0 5.0 46 -16.7 -5.0 5.0

48 -27.3 -5.0 5.0 48 -21.1 -5.0 5.0

50 -32.1 -5.0 5.0 50 -25.8 -5.0 5.0

Solution

Freeze Point

(°F)

Minimum

Recommended

LERTC (°F)

Minimum

Recommended

LWTC (°F)

Glycol

Percentage

(%)

Solution

Freeze Point

(°F)

Minimum

Recommended

LERTC (°F)

Recommended

Minimum

LWTC (°F)

30 RTAE-SVX001B-EN

Installation Electrical

General Recommendations

As you review this manual, keep in mind that:

• All field-installed wiring must conform to National Electric Code (NEC) guidelines, and any applicable state and local codes. Be sure to satisfy proper equipment grounding requirements per NEC.

• Compressor motor and unit electrical data (including motor kW, voltage utilization range, rated load amps) is listed on the chiller nameplate.

• All field-installed wiring must be checked for proper terminations, and for possible shorts or grounds.

• All electrical enclosures on CE marked chillers (unit model number digit 13 = C) have an environmental rating of IP53.

Note: Always refer to wiring diagrams shipped with

chiller or unit submittal for specific electrical schematic and connection information.

WARNING

Hazardous Voltage w/Capacitors!

Disconnect all electric power, including remote disconnects and discharge all motor start/run and AFD (Adaptive Frequency™ Drive) capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

• For variable frequency drives or other energy storing components provided byTrane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged.

• DC bus capacitors retain hazardous voltages after input power has been disconnected. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. After disconnecting input power, wait five (5) minutes for the DC capacitors to discharge, then check the voltage with a voltmeter. Make sure DC bus capacitors are discharged (0 VDC) before touching any internal components.

Failure to follow these instructions could result in death or serious injury.

For additional information regarding the safe discharge of capacitors, see “Adaptive Frequency™ Drive (AFD

Capacitor Discharge,” p. 32 and PROD-SVB06A-EN.

)

3

WARNING

Hazardous Voltage - Pressurized Burning Fluid!

The motors in the compressors have strong permanent

magnet motors and have the capability to generate voltage during situations when the refrigerant charge is being migrated.This potential will be present at the motor terminals and at the output of the variable speed drives in the power panel.

Before removing compressor terminal box cover for servicing, or servicing power side of control panel, CLOSE COMPRESSOR DISCHARGE SERVICE VALVE and disconnect all electric power including remote disconnects. Discharge all motor start/run capacitors. Follow lockout/tagout procedures to ensure the power cannot be inadvertently energized. Verify with an appropriate voltmeter that all capacitors have discharged.

The compressor contains hot, pressurized refrigerant.

Motor terminals act as a seal against this refrigerant. Care should be taken when servicing NOT to damage or loosen motor terminals.

Do not operate compressor without terminal box cover in place.

Failure to follow all electrical safety precautions could result in death or serious injury.

For additional information regarding the safe discharge of capacitors, see “Adaptive Frequency™ Drive (AFD

Capacitor Discharge,” p. 32 and PROD-SVB06A-EN.

3

WARNING

Proper Field Wiring and Grounding Required!

All field wiring MUST be performed by qualified

personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards.To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes. Failure to follow code could result in death or serious injury.

NOTICE:

Use Copper Conductors Only!

Unit terminals are not designed to accept other types of conductors. Failure to use copper conductors could result in equipment damage.

)

Important: To prevent control malfunctions, do not run

low voltage wiring (<30 V) in conduit with conductors carrying more than 30 volts.

RTAE-SVX001B-EN 31

Installation Electrical

Adaptive Frequency™ Drive (AFD3) Capacitor Discharge

After disconnecting input power, wait five (5) minutes for the DC capacitors to discharge.

Using voltmeter, measure voltage on bus at bus indicator module tabs 1 and 2, accessed through slots in protective cover on drive. See Figure 21, p. 32 for location of bus indicator module on theAFD drive. See Figure 22, p. 32 for details of bus indicator module. Capacitors are fully discharged when voltage across these tabs measures 0

VDC.

Figure 21. AFD board - indicator location

Bus

Indicator

Module

Units with Nitrogen Charge Option

For units with nitrogen charge option (model number digit 15 = 2), the unit mustNOT have shore power, or unit power applied until the unit has been charged. Applying power will drive EXV valves closed, and will inhibit sufficient vac for unit charging.

Installer-Supplied Components

Customer wiring interface connections are shown in the electrical schematics and connection diagrams that are shipped with the unit.The installer must provide the following components if not ordered with the unit:

• Power supply wiring (in conduit) for all field-wired connections.

• All control (interconnecting) wiring (in conduit) for

supplied devices.

field

• Fused-disconnect switches or circuit breakers.

Figure 22. Bus indicator module detail

Tab 2 (-) Bus

Tab 1 (+) Bus

32 RTAE-SVX001B-EN

Bus Charge Indicator

DC Bus Voltage Indicator LED

Installation Electrical

Power Supply Wiring

WARNING

Proper Field Wiring and Grounding Required!

All field wiring MUST be performed by qualified

personnel. Improperly installed and grounded field wiring poses FIRE and ELECTROCUTION hazards.To avoid these hazards, you MUST follow requirements for field wiring installation and grounding as described in NEC and your local/state electrical codes. Failure to follow code could result in death or serious injury.

WARNING

Hazardous Voltage w/Capacitors!

Disconnect all electric power, including remote disconnects and discharge all motor start/run capacitors before servicing. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. For variable frequency drives or other energy storing components provided byTrane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors. Verify with an appropriate voltmeter that all capacitors have discharged. Failure to disconnect power and discharge capacitors before servicing could result in death or serious injury.

The type and installation location(s) of the fused

disconnects must comply with all applicable codes.

NOTICE:

Use Copper Conductors Only!

Unit terminals are not designed to accept other types of conductors. Failure to use copper conductors could result in equipment damage.

Incoming customer power location varies with unit configurations.

• Control Panel (see Figure 23)

• Standard length units

(model number digits 28, 29 = 0X)

• Units with optional harmonic filtration

(model number digit 29 = 1)

• Transformer (see Figure 24, p. 34)

• 200, 230 or 575 V units with transformer

(model number digit 28 = 1)

Figure 23. Incoming customer power - control panel

Standard Length Units

(model number digits 28, 29 = 0X)

Incoming Customer Power Location

DC bus capacitors retain hazardous voltages after input power has been disconnected. Follow proper lockout/ tagout procedures to ensure the power cannot be inadvertently energized. After disconnecting input power, wait five (5) minutes for the DC capacitors to discharge and then check the voltage with a voltmeter to ensure the dc bus capacitors are discharged before touching any internal components. Failure to observe this precaution could result in death or serious injury.

For additional information regarding the safe discharge of capacitors, see “Adaptive Frequency™ Drive (AFD

)

3

Capacitor Discharge,” p. 32 and PROD-SVB06A-EN.

All power supply wiring must be sized and selected accordingly by the project engineer in accordance with NECTable 310-16.

All wiring must comply with local codes and the National Electrical Code.The installing (or electrical) contractor must provide and install the system interconnecting wiring, as well as the power supply wiring. It must be properly sized and equipped with the appropriate fused disconnect switches.

Incoming

Customer

Power

Location

Control Panel

Unit with optional Harmonic Filtration

(model number digit 29 = 1)

Pulse Auto Transformer (harmonic filtration)

Control Panel

Incoming Customer Power Location Unit Control Panel - right side view

Incoming Customer

Power

Location

RTAE-SVX001B-EN 33

Installation Electrical

Figure 24. Incoming customer power - transformer

200V, 230V and 575V units (Includes optional Transformer model number digit 28 = 1)

Incoming Customer Power Location (located on transformer)

Right side of unit

Incoming Customer Power Location

On Transformer

Incoming Customer

Power Location

(located on transformer)

Service Power Connection

The service power connection is a touch safe procedure to

allow for binding the control system and LLIDs. Service power connection allows for a NEMA 5-15 style extension cord to power on Class 2 devices (i.e. UC800, LLIDs, EXVs, andTD7 display) with an external power source, without the need of line voltage applied to the unit.This connection is to be made at 1XJ50.The extension cord power source is required to have upstream current protection rated at no more than 10A.The required voltage for the service power connection is 115V at 60Hz and 110V at 50Hz.

Heater Power Supply

The evaporator shell is insulated from ambient air and

protected from freezing temperatures by thermostaticallycontrolled immersion heaters. SeeTable 17 for evaporator heater summary. Whenever the water temperature drops to approximately 37°F (2.8°C), the thermostat energizes the heaters.The heaters will provide protection from ambient temperatures down to -20°F (-29°C).

NOTICE:

Equipment Damage!

Control panel main processor does not verify thermostat operation. A qualified technician must confirm operation of the thermostat to avoid catastrophic damage to the evaporator.

End of Unit

(non-control panel end)

Cut holes into the location shown above for the appropriately-sized power wiring conduits.The wiring is passed through these conduits and connected to the terminal blocks, optional unit-mounted disconnects, or HACR type breakers.

The high voltage field-provided connections are made

through patch plate on the right side of the main control panel or on the right side of the voltage autotransformer panel.

The low voltage connections are made through knockouts

provided on the left side of the control panel. Additional grounds may be required foreach 115volt power supply to the unit. Green lugs are provided for 115V customer wiring.

Control Power Supply

The unit is equipped with a control power transformer. It

is not necessary to provide additional control power voltage to the unit. No other loads should be connected to the control power transformer.

All units are factory-connected for appropriate labeled voltages.

Table 17. Evaporator heater summary

Waterboxes

Unit Size (tons)

2-pass Evaporator

150-165 400W 400W

180-200 400W (Qty 2) 400W

225-300 600W 600W

3-pass Evaporator

All sizes 400W (Qty 2) 400W

Supply Return

34 RTAE-SVX001B-EN

Installation Electrical

InterconnectingWiring

Chilled Water Pump Control

NOTICE:

Equipment Damage!

If the microprocessor calls for a pump to start and water does not flow, the evaporator may be damaged catastrophically. It is the responsibility of the installing contractor and/or the customer to ensure that a pump will always be running when called upon by the chiller controls.

An evaporator water pump output relay closes when the chiller is given a signal to go into the Auto mode of operation from any source.The contact is opened to turn off the pump in the event of most machine level diagnostics to prevent the build up of pump heat.

The relay output is required to operate the Evaporator Water Pump (EWP) contactor. Contacts should be

compatible with 115/240 VAC control circuit. Normally, the EWP relay follows theAUTOmode of the chiller.Whenever the chiller has no diagnostics and is in the AUTO mode, regardless of where the auto command is coming from, the normally open relay is energized. When the chiller exits the AUTO mode, the relay is timed to open in an adjustable (usingTechView) 0 to 30 minutes.The nonAUTOmodes in which the pumpis stopped,include Reset, Stop, External Stop, Remote Display Stop, Stopped by

Tracer, Start Inhibited by Low AmbientTemp, and Ice

Building complete.

Table 18. Pump Relay Operation

Chiller Mode Relay Operation

Auto Instant Close Ice Building Instant Close Tracer Override Close Stop Timed Open Ice Complete Instant Open Diagnostics Instant Operation Chiller Shutdown

Diagnostics (except freeze protection)

Freeze Protection related chiller shutdown diagnostics

Chiller Off Cycle Freeze Diagnostics

(a)Operation can be instant open or instant close, depending on diagnostic.

Instant Open

Delayed/Dependent Open

Instant Close – Dependent Open

When going from Stop to Auto, the EWP relay is energized

immediately. If evaporator water flow is not established in 20 minutes (for normal transition) or 4 minutes, 15 seconds (for pump commanded ON due to an override safety), the UC800 de-energizes the EWP relay and generates a non-latching diagnostic. If flow returns (e.g. someone else is controlling the pump), the diagnostic is

(a)

cleared, the EWP is re-energized, and normal control resumed.

If evaporator water flow is lost once it had been established, the EWP relay remains energized and a nonlatching diagnostic is generated. If flow returns, the diagnostic is cleared and the chiller returns to normal operation.

In general, when there is either a non-latching or latching diagnostic, the EWP relayis turned off as thoughthere was a zero time delay. Exceptions whereby the relay continues to be energized occur with:

• Low Chilled Water Temperature diagnostic

(non-latching unless also accompanied by an Evap L

eaving WaterTemperature Sensor Diagnostic)

or

• Interrupt

Failure —AFDxA diagnostic (where x is

either 1 or 2 to indicate which drive is affected), in which a compressor continues to draw current even after commanded to have shutdown.

or

• Loss of Evaporator Water Flow diagnostic (non-

latching) and the unit is in the AUTO mode, after initially having proven evaporator water flow.

Programmable Relays

A programmable relayconcept provides for enunciationof certain events or states of the chiller, selected from a list of likely needs, while only using four physical output relays, as shown in the field wiring diagram.The four relays are provided (generally witha Quad RelayOutput LLID) as part of the Programmable Relay Option.The relay’s contacts are isolated Form C (SPDT), suitable for use with 120VAC circuits drawing up to 2.8 amps inductive, 7.2 amps resistive, or 1/3 HP and for 240VAC circuits drawing up to

0.5 amp resistive.

The list of events/states that can be assigned to the

programmable relays can be found in Table 19.The relay will be energized when the event/state occurs.

Table 19. Alarm and status relay output configuration

Alarm - Latching

Alarm - NonLatching

Alarm

table

Description

This output is true whenever there is any active latching shutdown diagnostic that targets the Unit, Circuit, or any of the Compressors on a circuit.

This output is true whenever there is any active non-latching shutdown diagnostic that targets the Unit, Circuit, or any of the Compressors on a circuit.

This output is true whenever there is any active latching or non-latching shutdown diagnostic that targets the Unit, Circuit, or any of the Compressors on a circuit.

RTAE-SVX001B-EN 35

Installation Electrical

Table 19. Alarm and status relay output configuration

table (continued)

Description

This output is true whenever there is any

Alarm Ckt 1

Alarm Ckt 2

Unit Limit Mode

Compressor Running

Circuit 1 Running

Circuit 2 Running

Maximum Capacity

Head Pressure Relief Request

active latching or non-latching shutdown diagnostic that targets Circuit 1, or any of the Compressors on Circuit

This output is true whenever there is any active latching or non-latching shutdown diagnostic that targets Circuit 2, or any of the Compressors on Circuit 2.

This output is true whenever a circuit on the unit has been running in one of the limit modes continuously for the Limit Relay debounce time. A given limit or overlapping of different limits must be in effect continuously for the debounce time prior to the output becoming true. It will become false if no limits are present for the debounce time.

The output is true whenever any compressor is running.

The output is true whenever any compressor of Circuit 1 is running.

The output is true whenever any compressor of Circuit 2 is running.

The output is true whenever the unit has reached maximum capacity continuously for the Max Capacity Relay debounce time. The output is false when the unit is not at maximum capacity continuously for the filter debounce time.

This relay output is energized anytime the chiller or a single circuit on the chiller is running in one of the following modes; Ice Making Mode, or Condenser Pressure Limit continuously for the duration specified by the Chiller Head Relief Relay Filter Time. The Chiller Head Relief Relay Filter Time is a service setpoint. The relay output is deenergized anytime the chiller exits all above modes continuously for the duration specified by the same Chiller Head Relief Relay Filter Time

Relay Assignments Using

Tracer™ TU

Tracer™ TU Service Tool is used to install the

Programmable Relay Option package and assign any of the above list of events or status to each of the four relays provided with the option. (See “Tracer™TU,” p. 55 for more information on theTracerTU service tool.) The relays to be programmed are referred to by the relay’s terminal numbers on the LLID board 1K13.

The default assignments forthe four available relaysof the

Programmable Relay option are:

Table 20. Default assignments

Relay

Relay 0Terminals J2-1,2,3: Unit Limit Mode

Relay 1Terminals J2-4,5,6: Maximum Capacity

Relay 2Terminals J2 - 7,8,9: Compressor Running

Relay 3Terminals J2 -10,11,12: Alarm

If any of the Alarm/Status relays are used, provide electrical power, 115 VAC with fused-disconnect to the panel and wire through the appropriate relays (terminals on 1K13 (EUR=A4-5)). Provide wiring (switched hot, neutral, and ground connections) to the remote annunciation devices. Do not use power from the chiller’s control panel transformer to power these remote devices. Refer to the field diagrams which areshipped withthe unit.

Low Voltage Wiring

The remote devices described below require low voltage

wiring. All wiring to and from these remote input devices to the Control Panel must be made with shielded, twisted pair conductors. Be sure to ground the shielding only at the panel.

Important: To prevent control malfunctions, do not run

low voltage wiring (<30 V) in conduit with conductors carrying more than 30 volts.

Emergency Stop

UC800 provides auxiliary control for a customer specified/ installed latching trip out. When this customer-furnished remote contact 5K35 is provided, the chiller will run normally when the contact is closed. When the contact opens, the unit will trip on a manually resettable diagnostic.This condition requires manual reset at the front of the control panel.

Connect low voltage leads to terminal strip locations on 1K2. Refer to the field diagrams that are shipped with the unit.

Silver or gold-plated contacts are recommended.These customer-furnished contacts must be compatible with 24

VDC, 12 mA resistive load.

External Auto/Stop

If the unit requires the external Auto/Stop function, the installer must provide leads from the remote contacts 5K34 to the proper terminals of the LLID 1K2 on the control panel.

The chiller will run normally when the contacts are closed.

When either contact opens, the compressor(s), if

operating, will go to the RUN:UNLOAD operating mode and cycle off. Unit operation will be inhibited. Closure of the contacts will permit the unit to return to normal operation.

Field-supplied contacts for all low voltage connections must be compatible with dry circuit 24 VDC for a 12 mA resistive load. Refer to the field diagrams that are shipped with the unit.

External Circuit Lockout – Circuit #1 and #2

UC800 provides auxiliary control of a customer specified or installed contact closure, for individual operation of either Circuit #1 or #2. If the contact is closed, the refrigerant circuit will not operate 5K32 and 5K33.

36 RTAE-SVX001B-EN

Installation Electrical

Upon contact opening, the refrigerant circuit will run normally.This feature is used to restrict total chiller operation, e.g. during emergency generator operations.

Connections to 1K3 are shown in the field diagrams that are shipped with the unit.

These customer-supplied contact closures must be

compatible with 24 VDC, 12 mA resistive load. Silver or gold plated contacts are recommended.

Ice Building Option

UC800 provides auxiliary control for a customer specified/ installed contact closure for ice building if so configured and enabled.This output is known as the Ice Building Status Relay. The normally open contact will be closed when ice building is in progress and open when ice building has been normally terminated either through Ice

Termination setpoint being reached or removal of the Ice

Building command.This output is for use with the ice storage system equipment or controls (provided by others) to signal the systemchanges required asthe chiller mode changes from “ice building” to “ice complete”.

When contact 5K36 is provided, the chiller will run

normally when the contact is open.

UC800 will accept either an isolated contact closure (External Ice Building command) or a Remote Communicated input (Tracer) toinitiate andcommand the Ice Building mode.

UC800 also provides a “Front Panel Ice Termination Setpoint”, settable throughTracer™TU, and adjustable from 20 to 31°F (-6.7 to -0.5°C) in at least 1°F (1°C) increments.

Note: When in the Ice Building mode, and the evaporator

entering water temperature drops below the ice termination setpoint, the chiller terminates the Ice Building mode and changes to the Ice Building Complete Mode.

NOTICE:

Equipment Damage!

Freeze inhibitor must be adequate for the leaving water temperature. Failure to do so will result in damage to system components.

Tracer™ TU must also be used to enable or disable Ice

Machine Control.This setting does not prevent theTracer from commanding Ice Building mode.

Upon contact closure, the UC800 will initiate an ice building mode, in which the unit runs fully loaded at all times. Ice building shall be terminated either by opening the contact or based on the entering evaporator water temperature. UC800 will not permit the ice building mode to be reentered until the unit has been switched out of ice building mode (open 5K36 contacts) and then switched back into ice building mode (close 5K36 contacts.)

In ice building, all limits (freeze avoidance, evaporator, condenser, current) will be ignored. All safeties will be enforced.

If, while in ice building mode, the unit gets down to the freeze stat setting (water or refrigerant), the unit will shut down on a manually resettable diagnostic, just as in normal operation.

Connect leads from 5K36 to the proper terminals of 1K8. Refer to the field diagrams which areshipped withthe unit.

Silver or gold-plated contacts are recommended.These customer furnished contacts must be compatible with 24

VDC, 12 mA resistive load.

External Chilled Water Setpoint (ECWS) Option

The UC800 provides inputs that accept either 4-20 mA or

2-10VDC signals to set the external chilled water setpoint (ECWS).This is not a reset function.The input defines the setpoint.This input is primarily used with generic BAS (building automation systems).The chilled water setpoint set via theTracer AdaptiView™TD7 or through digital communication withTracer (Comm3).The arbitration of the various chilled water setpoint sources is described in the flow charts at the end of the section.

The chilled water setpoint may be changed from a remote

location by sending either a 2-10 VDC or 4-20 mA signal to the 1K14, terminals 5 and 6 LLID. 2-10 VDC and 4-20 mA each correspond to a 10 to 65°F (-12 to 18°C) external chilled water setpoint.

The following equations apply:

Voltage Signal

As generated from external source VDC=0.1455*(ECWS) + 0.5454

As processed by UC800 ECWS=6.875*(VDC) - 3.75

Current Signal

As generated from external source mA=0.2909(ECWS) + 1.0909

As processed by UC800 ECWS=3.4375(mA) - 3.75

If the ECWS input develops an open or short, the LLID will report either a very high or very low value back to the main processor.This will generate an informational diagnostic and the unit will default to using the Front Panel (TD7) Chilled Water Setpoint.

Tracer TU ServiceTool is used to set the input signal type

from the factory default of 2-10 VDC to that of 4-20 mA.

Tracer TU is also used to install or remove the External

ChilledWater Setpoint option as well as a means to enable and disable ECWS.

External Demand Limit Setpoint (EDLS) Option

Similar to the above, the UC800 also provides for an optional External Demand Limit Setpoint that will accept either a 2-10 VDC (default) or a 4-20 mA signal. The Demand Limit Setting can also be set via theTracer

AdaptiView™TD7 or through digital communication with

RTAE-SVX001B-EN 37

Installation Electrical

Tracer (Comm 3).The arbitration of the various sources of

demand limit is described in the flow charts at the end of this section.The External Demand Limit Setpoint may be changed from a remote location by hooking up the analog input signal to the 1K14LLID terminals 2 and 3. Refer to the following paragraph on Analog Input Signal Wiring Details.The following equations apply for EDLS:

Voltage Signal Current Signal

As generated from external source

As processed by UCM

VDC+0.133*(%)-6.0 mA=0.266*(%)-12.0

%=7.5*(VDC)+45.0 %=3.75*(mA)+45.0

If the EDLS input develops an open or short, the LLID will report either a very high or very low value back to the man processor.This will generate an informational diagnostic and the unit will default to using the Front Panel (Tracer AdaptiView™TD7) Current Limit Setpoint.

TheTracer™TU ServiceTool must be used to set the input

signal type from the factory default of 2-10 VDC to that of 4-20 mA current.Tracer TU must also be used to install or remove the External Demand Limit Setpoint Option for field installation, or can be used to enable or disable the feature (if installed).

EDLS and ECWS Analog Input Signal Wiring Details:

Both the ECWS and EDLS can be connected and setup as either a 2-10 VDC (factory default), 4-20 mA, or resistance input (also a form of 4-2OmA) as indicated below. Depending on the type to be used, theTracerTU Service

Tool must be used to configure the LLID and the MP for the

proper input type that is being used.This is accomplished by a setting change on the Custom Tab of the Configuration View withinTracerTU.

Important: For proper unit operation, BOTH the EDLS

and ECWS settingsMUST be the same (2-10 VDC or 4-20mA), even if only one input is to be used.

The J2-3 and J2-6 terminal is chassis grounded and

terminal J2- 1 and J2-4 can be used to source 12 VDC.The ECLS uses terminals J2-2 and J2-3. ECWS uses terminals J2-5 and J2-6. Both inputs are only compatible with high-side current sources.

Figure 25. Wiring examples for EDLS and ECWS

J2-1 & 4 Dual

2-10 VDC, 4-20mA

Resister

I

I = 20/(R + 200)

J2-2 & 5 Analog J2-3 & 6 I/O LLID

J2-1 & 4 Dual J2-2 & 5 Analog J2-3 & 6 I/O LLID

Chilled Water Reset (CWR)

UC800 resets the chilled water temperature set point based on either return water temperature, or outdoor air temperature. Return Reset is standard, Outdoor Reset is optional.

The following shall be selectable:

• One of three ResetTypes: None, Return Water

Temperature Reset, OutdoorAirTemperature Reset, or

Constant Return Water Temperature Reset.

• Reset Ratio Set Points.

For outdoor air temperature reset there shall be both positive and negative reset ratio's.

• Start Reset Set Points.

• Maximum Reset Set Points.

The equations for each type of reset are as follows:

Return

CWS' = CWS + RATIO (START RESET - (TWE -TWL))

and CWS' > or = CWS

and CWS' - CWS < or = Maximum Reset

Outdoor

CWS' = CWS + RATIO * (START RESET -TOD)

and CWS' > or = CWS

and CWS' - CWS < or = Maximum Reset

where

CWS' is the new chilled water set point or the "reset CWS"

CWS is the active chilled water set point before any reset has occurred, e.g. normally Front Panel, Tracer, or ECWS

RESET RATIO is a user adjustable gain

START RESET is a user adjustable reference

TOD is the outdoor temperature

TWE is entering evap. water temperature

38 RTAE-SVX001B-EN

TWL is leaving evap. water temperature

MAXIMUM RESET is a user adjustable limit providing the maximum amount of reset. For all types of reset, CWS' CWS < or = Maximum Reset.

Range Increment

Reset

Type

Return

Outdoor

Reset

Ratio

10 to 120%

80 to 80%

Start

Reset

4 to 30 F 0 to 20 F 1% 1% 50%

(2.2 to

16.7 C)

50 to 130 F

(10 to

54.4 C)

Max

Reset

(0.0 to

11.1 C)

0 to 20 F 1% 1% 10%

(0.0 to

11.1 C)

IP

Units

SI

Units

Factory Default

In addition to Return and Outdoor Reset, the MP provides a menu item for the operator to select a Constant Return Reset. Constant Return Reset will reset the leaving water temperature set point so as to provide a constant entering water temperature.The Constant Return Reset equation is the same as the Return Reset equation except on selection of Constant Return Reset, the MP will automatically set Ratio, Start Reset, and Maximum Reset to the following.

RATIO = 100%

START RESET = Design DeltaTemp.

MAXIMUM RESET = Design DeltaTemp.

The equation for Constant Return is then as follows:

CWS' = CWS + 100% (Design DeltaTemp. - (TWE -TWL)) and CWS' > or = CWS

and CWS' - CWS < or = Maximum Reset

When any type of CWR is enabled, the MP will step the

Active CWS toward the desired CWS' (based on the above equations and setup parameters) at a rate of 1 degree F every 5 minutes until the Active CWS equals the desired CWS'.This applies when the chiller is running.

When the chiller is not running, CWS is reset immediately

(within one minute) for Return Reset and at a rate of 1 degree F every 5 minutes for Outdoor Reset.The chiller will start at theDifferential to Start valueabove a fully reset CWS or CWS' for both Return and Outdoor Reset.

Installation Electrical

Communications Interface

LonTalk Interface (LCI-C)

UC800 provides an optional LonTalk™ Communication Interface (LCI-C) between the chiller and a Building

Automation System (BAS). An LCI-C LLID shall be used to

provide "gateway" functionality between a LonTalk compatible device and the Chiller.The inputs/outputs include both mandatory andoptional network variables as established by the LonMark Functional ChillerProfile 8040.

Note: For more information see ACC-SVN100*-EN.

BACnet Interface (BCI-C)

Optional BACnet™ Communication Interface for Chillers (BCI-C) is comprised of aTracer UC800 controller with interface software. It is a non-programmable communications module that allows units to communicate on a BACnet communications network.

Note: For more information, see BAS-SVP01*-EN.

Modbus RemoteTerminal Unit Interface

Modicon Communication Bus (Modbus™) enables the chiller controller to communicate as a slave device on a Modbus network. Chiller setpoints, operating modes, alarms and status can be monitored and controlled by a Modbus master device.

Note: For more information, see BAS-SVP01*-EN.

Transformer Power Rating

See table below for power rating of optional transformer (unit model number digit 28 = 1).

Table 21. Transformer power ratings

Unit Size Power Rating

150 - 200 tons 340 kVA

225-300 tons 470 kVA

RTAE-SVX001B-EN 39

Operating Principals

This section contains an overview of the operation and

maintenance of Stealth RTAE units equipped with UC800 control systems. It describes the overall operating principles of the RTAE design.

Refrigeration Circuits

Each unit has two refrigerant circuits, with one rotary screw compressor per circuit. Each refrigerant circuit includes a compressor suction and discharge service valve, liquid line shutoffvalve, removable core filter, liquid line sight glass with moisture indicator, charging port and an electronic expansion valve. Fully modulating compressors and electronic expansion valves provide variable capacity modulation over the entire operating range. Lower condensing temperatures and higher suction temperatures along with more efficient compressors and fans result in the premium efficiency level of Stealth Air Cooled chillers

Refrigeration Cycle

The refrigeration cycle of the RTAE chiller isrepresented in

the pressure enthalpy diagram shown in Figure 26.Key state points are indicated on the figure.The cycle for the full load AHRI design point is represented in the plot.

Figure 26. Pressure enthalpy (P-h) diagram - RTAE

3b

4

R-134a

3

h (btu/lb)

2

2b

1

1b

120 140100806040200

600

500

200

P (psia)

100

50

30

cooled heat exchanger where refrigerant is condensed in the tube (states 2b to 3b). Refrigerant flow through the system is balanced by an electronic expansion valve (states 3b to 4).

Refrigerant R-134a

The RTAE chiller uses environmentally friendly R-134a. Trane believes that responsible refrigerant practices are

important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified.The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

R-134a is a medium pressure refrigerant. It may not be used in any condition that would cause the chiller to operate in a vacuum without a purge system. RTAE is not equipped with a purge system.Therefore, the RTAE chiller may not be operated in a condition that would result in a saturated condition in the chiller of –15°F (-26°C) or lower.

R-134a requires the use of specific POE oils as designated on the unit nameplate.

Important: Use only R-134a and Trane Oil 00311 (bulk)/

00315 (1gal)/00317 (5gal) in Stealth chillers.

Compressor and Lube Oil System

The rotary screw compressor is semi-hermetic, direct

drive with capacity control via a variable speed drive, rolling element bearings, differential refrigerant pressure oil pump and oil heater.The motor is a suction gas cooled, hermetically sealed, permanent magnet motor. An oil separator is provided separately from the compressor. Oil filtration is provided internal to the compressor. Check valves in the compressor discharge and lube oil system are also provided.

Condenser and Fans

The RTAE chiller uses a shell and tube evaporator design

with refrigerant evaporating on the shell side and water flowing inside tubes having enhancedsurfaces (states4 to

1).The suction lines are designed to minimize pressure drop.(states 1 to 1b).The compressoris atwin-rotor helical rotary compressor designed similarly to the compressors offered in otherTrane Screw Compressor Based Chillers (states 1b to 2).The discharge lines include a highly efficient oil separation system that removes 99.8% of the oil from the refrigerant stream going to the heat exchangers (states 2 to 2b). De-superheating, condensing and sub-cooling is accomplished in a fin and tube air

40 RTAE-SVX001B-EN

Air-cooled condenser coils have aluminum fins

mechanically bonded to internally finned seamless aluminum tubing.The tubing is a long life alloy designed to deliver corrosion performance that meets or exceeds microchannel coils.The condenser coil has an integral subcooling circuit. Condensers are factory proof tested at 525 psig and leak tested with helium in a mass spectrometer chamber at 150 psig. All tube connections are mechanical except the brazed copper to aluminum inlet and outlet connections. Condenser fans are directdrive vertical discharge.The condenser fan motors are permanent magnet motors with an integrated drive to

provide variable speed fan control for all fans and are designed with permanently lubricated ball bearings, internal temperature and current overload protection, and fault feedback as a standard product offering. The fan impeller is a nine bladed-shrouded fan made from heavyduty molded plastic. Standard units will start and operate between 32 to 105°F (0 to 40°C) ambient.

The UC800 controls calculate optimum fan speed for

maximum efficiency based on compressor load and outdoor air, resulting in high IPLV values.

Evaporator

The evaporator is a tube-in-shell heat exchanger design

constructed from carbon steel shells and tubesheets with internally and externally finned seamless copper tubes mechanically expanded into the tube sheets.The evaporator is designed, testedand stamped in accordance with the ASME Boiler and Pressure Vessel Code for a refrigerant side working pressure of 200 psig. The evaporator is designed for a water side working pressure of 150 psig. Standard water connections are grooved for

Victaulic style pipe couplings, with flange style

connections optionally available. Waterboxes are available in 2 and3 pass configurations and include avent, a drain and fittings for temperature control sensors. Evaporators are insulated with 3/4 inch closed cell insulation. Evaporator water heaters with thermostat are provided to help protect the evaporator from freezing at ambient temperatures down to -20°F (-29°C). A factory installed flow switch isinstalled onthe supply water box in the evaporator inlet connection.

Operating Principals

Drive Cooling System

Each refrigeration circuit has a compressor drive cooling circuit. Each drive cooling circuit includes a wet rotor circulation pump that circulates a secondary heat transfer fluid in a closed system between the adaptive frequency drive components between the heat sinks of the adaptive frequency drive and a brazed plate heat exchanger. The pump is fed from a thermal expansion tank with a ventedpressure cap which is also used as the circuit pressure relief.The circuit also includes a particulate strainer and a drain valve for servicing.

RTAE-SVX001B-EN 41

Controls

Overview

Stealth™ RTAE units utilize the following control/interface components:

• Tracer™ UC800 Controller

• Tracer AdaptiView™ TD7 Operator Interface

Figure 27. Wiring locations and connection ports

+ +

+

LINK

234 5

6

MBUS

6

UC800 Specifications

This section covers information pertaining to the UC800

controller hardware.

Wiring and Port Descriptions

Figure 27 illustrates the UC800 controller ports, LEDs,

rotary switches, and wiring terminals.The numbered list following Figure 27 corresponds to thenumbered callouts in the illustration.

+

24

VDC

7

8

1

Front View

1. Rotary Switches for setting BACnet®MAC address or MODBUS ID.

2. LINK for BACnet MS/TP, or MODBUS Slave (two terminals, ±). Field wired if used.

3. LINK for BACnet MS/TP, or MODBUS Slave (two terminals, ±). Field wired if used.

4. Machine bus for existing machine LLIDs (IPC3Tracer bus 19.200 baud). IPC3 Bus: used for Comm4 usingTCI or LonTalk

5. Power (210 mA at 24 Vdc) and ground terminations (same bus as item 4). Factory wired.

6. Not used.

7. Marquee LED power and UC800 Status indicator (Table 22, p. 43).

8. Status LEDs for the BAS link, MBus link, and IMC link.

9. USB device type B connection for the service tool (TracerTU).

10. The Ethernet connection can only be used with the Tracer AdaptiView display.

11. USB Host (not used).

9

10

11

Bottom View

®

using LCI-C.

10

11

42 RTAE-SVX001B-EN

Communication Interfaces

There are four connections on the UC800 that support the

communication interfaces listed. See Figure 27, p. 42 for the locations of each of these ports.

• BACnet

®

MS/TP

• MODBUS™ Slave

• LonTalk™ using LCI-C (from the IPC3 bus)

• Comm 4 usingTCI (from the IPC3 bus)

Rotary Switches

There are three rotary switches on the front of the UC800

controller. Use these switches to define a three-digit address when the UC800 is installed in a BACnet or MODBUS system (e.g., 107, 127, etc.).

Note: Valid addresses are 001 to 127 for BACnet and 001

to 247 for MODBUS.

LED Description and Operation

There are 10 LEDs on the front of the UC800. Figure 28

shows the locations of each LED and Table 22 describes their behavior in specific instances.

Figure 28. LED locations

Marquee

LINK MBUS IMC

TX

RX

LINK

ACT

SERVICE

Controls

Table 22. LED behavior

LED UC800 Status

Powered. If the Marquee LED is green solid, the

UC800 is powered and no problems exist.

Low power or malfunction. If the Marquee LED is

Marquee LED

LINK, MBUS,

IMC

Ethernet Link

Service

red solid, the UC800 is powered, but there are problems present.

Alarm. The Marquee LED blinks Red when an alarm exists.

The TX LED blinks green at the data transfer rate when the UC800 transfers data to other devices on the link.

The Rx LED blinks yellow at the data transfer rate when the UC800 receives data from other devices on the link.

The LINK LED is solid green if the Ethernet link is connected and communicating.

The ACT LED blinks yellow at the data transfer rate when data flow is active on the link.

The Service LED is solid green when pressed. For qualified service technicians only. Do not use.

NOTICE:

Electrical Noise!

Maintain at least 6 inches between low-voltage (<30V) and high voltage circuits. Failure to do so could result i electrical noise that could distort the signals carried by the low-voltage wiring, including IPC.

Tracer AdaptiViewTD7 Display

Operator Interface

Information is tailored to operators, service technicians, and owners. When operating a chiller, there is specific information you need on a day-to-day basis—setpoints, limits, diagnostic information, and reports. Day-to-day operational information is presented at the display. Logically organized groups of information— chiller modes of operation, active diagnostics, settings and reports put information conveniently at your fingertips.

Figure 29. TD7 screens

Operator Display Boot Screen Display Loading Data Home Screen, Auto Mode

RTAE-SVX001B-EN 43

Controls

Main Display Area/Home Screen

All screens appear within the main display area (shown as location in Table 30).

Home screen: Chiller status information

The home screen (Table 30) provides the most frequently

needed chiller status information on “touch targets” (the entire white rectangular areas)for eachchiller component.

Touching any touch target displays a screen containing

more chiller status information related to each component.

Figure 30. Main screen

Viewing Chiller Operating Modes

On the Reports screen, touch Chiller Operating Modes to view the current operating status of the chiller in terms of the top-level operating mode and submodes.

Note: You can also access the Chiller Operating Modes

screen from the chiller status button in the upper left corner of the screen.

Figure 31. Chiller operating modes

Table 23. Main screen items

Description Resolution Units

Active Chilled Water Setpoint X.X °F /°C

Active Current Limit Setpoint X.X %RLA

Average Motor Current %RLA X.X %RLA

Evap Entering/Leaving Water Temp X.X °F /°C

Cond Entering/Leaving Water Temp X.X °F /°C

Frequency Command X.X Hz

Evaporator Water Flow Status X.X

Condenser Water Flow Status

Table 24. Operating modes

Chiller Modes Description

MP Resetting

Stopped

Local Stop Chiller is stopped by TD7 Stop button command– cannot be remotely overridden.

Immediate Stop

Diagnostic Shutdown – Manual Reset The chiller is stopped by a diagnostic that requires manual intervention to reset.

Run Inhibit

Diagnostic Shutdown – Auto Reset The entire chiller is stopped by a diagnostic that may automatically clear.

The chiller is not running and cannot run without intervention. Further information is provided by the sub-mode:

Chiller is stopped by the TD7 Panic Stop (by pressing Stop button twice in succession) – previous shutdown was manually commanded to shutdown immediately without a run-unload or pumpdown cycle - cannot be remotely overridden.

The chiller is currently being inhibited from starting (and running*), but may be allowed to start if the inhibiting or diagnostic condition is cleared. Further information is provided by the submode:

44 RTAE-SVX001B-EN

Table 24. Operating modes (continued)

Chiller Modes Description

Starting is Inhibited by External Source

Start Inhibited by BAS

Waiting for BAS Communications

Power Up Delay Inhibit min:sec

Low Differential Refrigerant Pressure Cool-Down Timemin:sec

Auto

Waiting For Evap Water Flow

Waiting for A Need to Cool

Waiting to Start

Waiting For Cond Water Flow

Start Inhibited Waiting for Oil The chiller will wait up to 2 minutes in this mode for oil level to appear in the oil tank.

Condenser Water Pump Pre-Run Timemin:sec

Restart Inhibit min:sec

Waiting For EXV Preposition

Minimum Condenser Watermin:sec

Condenser Water Regulating Control min:sec

Running

High Discharge Temp Limit

Base Loaded

Capacity Control Softloading

Current Control Softloading

EXV Controlling Differential Pressure

Chilled Water Control

Running – Limited

The chiller is inhibited from starting (and running) by the “external stop” hardwired input.

The chiller is inhibited from starting (and running) by command from a Building Automation System via the digital communication link (com 4 or com 5).

This is a transient mode - 15-min. max, and is only possible if the chiller is in the Auto - Remote command mode. After a power up reset, it is necessary to wait for valid communication from a Building Automation System (Tracer) to know whether to run or stay inhibited. Either valid communication will be received from the Building Automation System (e.g. Tracer), or a communication diagnostic ultimately will result. In the latter case the chiller will revert to Local control.

The compressor is currently being inhibited from starting as part of the power up start delay (or staggered start) feature. This feature is intended to prevent multiple chillers from all starting simultaneously if power is restored to all chillers simultaneously.

Contact your local Trane service office.

The chiller is not currently running but can be expected to start at any moment given that the proper conditions and interlocks are satisfied. Further information is provided by the submode:

The chiller will wait up to 20 minutes in this mode for evaporator water flow to be established per the flow switch hardwired input.

The chiller will wait indefinitely in this mode, for an evaporator leaving water temperature higher than the Chilled Water Setpoint plus the Differential to Start.

The chiller is not currently running and there is a call for cooling but start is delayed by certain interlocks or proofs. Further information is provided by the sub-mode:

The chiller will wait up to 20 minutes in this mode for condenser water flow to be established per the flow switch hardwired input.

The chiller will wait up to 30 minutes (user adjustable) in this mode for to allow the condenser water loop to equalize in temperature

The compressor is currently unable to start due to its restart inhibit timer. A given compressor is not allowed to start until 5 minutes (adj) has expired since its last start, once a number of “free starts” have been used up.

The Chiller will wait for the time it takes the EXV to get to its commanded pre-position prior to starting the compressor. This is typically a relatively short delay and no countdown timer is necessary (less than 15 seconds)

Only possible when Condenser Head Pressure Control option is enabled, this wait may be necessary due to the Head Pressure control device’s stroke time.

Only possible when Condenser Head Pressure Control option is enabled, this wait may be necessary due to the Head Pressure control device’s stroke time

The chiller, circuit, and compressor are currently running. Further information is provided by the sub-mode:

The compressor is running and is being forced loaded to its step load point, without regard to the leaving water temperature control, to prevent tripping on high compressor discharge temperature.

Chiller is running in “Base Load” operation where the capacity of the chiller is controlled to maintain a given current per an adjustable set point. The chiller is forced to run without regard to the chilled water temperatures and the differential to start and stop

The chiller is running, but loading is influenced by a gradual ‘pulldown” filter on the chilled water temperature setpoint. The settling time of this filter is user adjustable as part of the softload control feature.

The chiller is running, but loading is influenced by a gradual filter on the current limit setpoint The starting current and the settling time of this filter is user adjustable as part of the softload control feature.

Liquid level control of the Electronic Expansion Valve has temporarily been suspended. The EXV is being modulated to control for a minimum differential pressure. This control implies low liquid levels and higher approach temperatures, but is necessary to provide minimum oil flow for the compressor until the condenser water loop can warm up to approx 50F.

Unit is running in the Cooling Mode of operation and is attempting to control to the active Chilled Water Setpoint.

The chiller, circuit, and compressor are currently running, but the operation of the chiller/ compressor is being actively limited by the controls. Further information is provided by the submode.* See the section below regarding criteria for annunciation of limit modes

Controls

RTAE-SVX001B-EN 45

Controls

Table 24. Operating modes (continued)

Chiller Modes Description

Condenser Pressure Limit

Low Evaporator Refrigerant Temperature Inhibit

Capacity Limited by Low Liquid Level

Current Limit

Phase Unbalance Limit The compressor is running and its capacity is being limited by excessive phase current unbalance.*

Low Discharge Superheat Limit

Oil Loss Avoidance

Note: Other normal running modes (see above) may also appear under this top level mode

Shutting Down

Local Stop Chiller is in the process of being stopped by TD7 Stop button command

immediate Stop Chiller is in the process of being stopped by TD7 Panic Stop command

Diagnostic Shutdown – Manual Reset

Diagnostic Shutdown – Auto Reset

Compressor Unloading (min:sec)

Starting is Inhibited by External Source

Start Inhibited by BAS

Evaporator Water Pump Off Delay min:sec

Service Override The Chiller is in a Service Override mode

Service Pumpdown

The circuit is experiencing condenser pressures at or near the condenser limit setting. Compressors on the circuit will be unloaded to prevent exceeding the limits.*

The circuit is experiencing saturated evaporator temperatures at or near the Low Refrigerant Temperature Cutout setting. Compressors on the circuit will be unloaded to prevent tripping. *

The circuit is experiencing low refrigerant liquid levels and the EXV is at or near full open. The compressors on the circuit will be unloaded to prevent tripping.*

The compressor is running and its capacity is being limited by high currents. The current limit setting is 100% RLA (to avoid overcurrent trips) or lower as set by the compressor’s “share” of the active current limit (demand limit) setting for the entire chiller.*

This is limit control that acts to prevent chiller shutdown when the discharge superheat approaches the limit setpoint by reducing the liquid level and unloading the slide valve.

This is limit control that acts to prevent chiller shutdown when the estimated refrigerant flow approaches the calculated minimum flow by increasing the slide valve capacity and/or VFD frequency

The chiller is still running but shutdown is imminent. The chiller is going through a compressor run-unload. sequence. Shutdown is necessary due to one (or more) of the following sub-modes:

Chiller is in the process of being stopped by a Latching Diagnostic shutdown – Manual Reset is required to clear

Chiller is in the process of being stopped by a Diagnostic shutdown – Automatic clearing of the diagnostic is possible if condition clears.

The compressor is in its “run – unload” state in which it is being continuously unloaded for 40 sec prior to shutdown.

Chiller is in the process of being stopped by the External Stop hardwired input

The Chiller is in the process of shutdown due to a command from the Building Automation System (e.g. Tracer)

The chiller, circuit, and compressor is running via a manual command to perform a Service Pumpdown. Both evap and condenser water pumps are commanded to be running. The EXV is being held wide open, but the manual liquid line service valve should be closed.

Alarms

You can use the display to view alarms and to reset them.

Alarms are communicated to the display immediately upon detection.

Viewing the Alarms Screen

Touch the Alarms button inthe main menu area (Figure 30,

p. 44) to view the Alarms screen. A table of active alarms

appears that is organized chronologically with the most recent at the top of the list, as shown in Figure 32.This example shows the default view, which appears each time you return to the screen.

Note: A page number appears in the lower right corner of

the screen. If a screen contains more than one page, up/down arrows also appear for viewing the other pages

46 RTAE-SVX001B-EN

Figure 32. Alarm screen

The Alarms screen is accessible by depressing the Alarms

enunciator. A verbal description will be provided.

A scrollable list of the last active Alarms is presented.

Performing a “Reset Alarms” will reset all active Alarms

Controls

regardless of type, machine or circuit.The scrollable list will be sorted by time of occurrence.

If a informational warning is present, the “Alarms” key will be present but not flashing. If a Alarm shutdown (normal or immediate) has occurred, the “Alarm” key will display that is flashing. If no Alarms exist, the “Alarm” key will not be present.

Reports

You can use theTracer display to view a variety of reports

and to create and edit a custom report. All reports contain live data that refreshes every 2–5 seconds.

Viewing the Reports Screen

Touch the Reports button in the main menu area (Figure 4)

to view the Reports screen.The Reports screen contains the following buttons:

• Custom Report1

• Custom Report2

• Custom Report3

• Evaporator

• Condenser

• Compressor

• Motor

• About

• Operating Modes

• Log Sheet

• ASHRAE Chiller Log

Each button links to the report named on the button.

Editing a Custom Report

You can edit the custom report by adding, removing, or re-

order data as follows:

1. On the Custom Report screen, touch Edit.The Edit

Custom Report screen appears.

2. Add, remove, or re-order as follows:

a. To add an item to the custom report, touch it. It

responds arrows to scroll through the rest of the items that can be added to the custom report.Then touch Add to move the selected item to the box on the right side of the screen.To add all of the remaining items in the left box to the custom report, touch Add All.

b. To remove an item from the custom report, touch it.

It responds by changing to blue.You can use the arrows to scroll through the rest of the items that can be removedfrom thecustom report.Then touch Remove to movethe selecteditem tothe box on the left side of the screen.

c. To re-order items in the custom report, touch it. It

responds by changing to blue. Use the arrows to change the order of a highlighted item.

3. To save and view your edited custom report, touch

S

ave.

Figure 34. Edit custom report screen

by changing to blue.You can use the

Figure 33. Report screen

Figure 35. Report evaporator screen

Reportstab allowsa user to select from a listof reports

The

headings. Each report will generate a list of status items as defined in the tables that follow.

RTAE-SVX001B-EN 47

Controls

Table 25. Report evaporator screen items

Description Resolution Units

Active Chilled Water Setpoint X.X °F / °C

Evaporator Entering Water Temperature X.X °F / °C

Evaporator Leaving Water Temperature X.X °F / °C

Evaporator Water Flow Status Flow, No Flow Text

Evaporator Water Pump Override Auto, On Text

Evaporator Approach Temperature X.X °F / °C

EXV Position Percent X.X %

Evaporator Refrigerant Pressure XXX.X PSIA/kPa

Evaporator Saturated Rfgt Temp X.X °F / °C

Evaporator Refrigerant Liquid Level X.XX in/mm

Figure 36. Report condenser screen

Table 26. Report condenser screen items

Figure 37. Report compressor screen

Table 27. Report compressor screen items

Description Resolution Units

Compressor Running Status On,Off Text

Average Motor Current %RLA XX.X% %RLA

Compressor Starts XX Text

Compressor Running Time XX:XX Hr:Min

Oil Loss Level Sensor Wet, Dry Text

Discharge Temperature X.X °F / °C

Compressor Oil Pressure XXX.X PSIA/kPaA

Evaporator Refrigerant Pressure XXX.X PSIA/kPaA

Condenser Refrigerant Pressure XXX.X PSIA/kPaA

Differential Refrigerant Pressure XXX.X PSIA/kPaA

Frequency Command XX.X Hz

Description Resolution Units

Condenser Entering Water Temperature

Condenser Leaving Water Temperature

Condenser Water Flow Status Flow, No Flow Text

Condenser Water Pump Override Auto, On Text

Condenser Approach Temperature X.X F / C

EXV Position Percent X.X %

Condenser Refrigerant Pressure XXX.X PSIA/kPa

Condenser Saturated Rfgt Temp X.X F / C

Differential Refrigerant Pressure XXX.X PSIA/kPa

Outdoor Air Temperature X.X F / C

X.X F / C

Figure 38. Report motor screen

48 RTAE-SVX001B-EN

Table 28. Report motor screen items

Description Resolution Units

Active Current Limit Setpoint X.X %RLA

Average Motor Current %RLA X.X %RLA

Starter Motor Current L1 %RLA X.X %RLA

Starter Motor Current L2 %RLA X.X %RLA

Starter Motor Current L3 %RLA X.X %RLA

Starter Motor Current L1 X.X A

Starter Input Voltage AB XXX.X V

Starter Input Voltage BC XXX.X V

Starter Input Voltage CA XXX.X V

Average Motor Current X.X A

Average Phase Voltage XXX.X V

Frequency Command XX.X Hz

Equipment Settings

You can use the TD7 display to monitor and change a variety of equipment settings.

Viewing the Settings Screen

Touch the Settings button in the main menu area (see

Figure 30, p. 44) to view the Settings screen. Equipment

Settings identifies a column of buttons located on the screen (see the outlined column in Figure 39).The buttons are:

• Chiller Settings

• Feature Settings

• Chiller Water Reset

• Manual Control Settings

Each of these buttons provide access to a screen that contains section provides detailed information about these screens.

Figure 39. Setting screen

additional buttons related to each topic. This

Controls

Viewing and Changing Equipment Settings

Each button in the Equipment Settings column on the Settings screen takes you to a menu screen that contains a group of buttons. Each button displays the name of a setting and its current value (Figure 40).Touch any button to view a screen where you can change the setting for the feature shown on the button.

Note: A page number appears in the lower right corner of

the screen. If a screen contains more than one page, up/down arrows also appear for viewing the other pages, as in Figure 40.

Figure 40. Equipment setting screen

(Chiller setting shown)

To change an equipment setting, follow this procedure:

1. Touch one of the button in the Equipment Settings

column on theSettingsscreen, suchas Chiller Settings.

The corresponding screen appears (in this case, the

Chiller Settings screen).

2. Touchthe button that showsthe equipment setting you

w

ant to change.A screen that allows you to change the equipment setting appears.There are two types of these screens:

a. For screens with button selections (Figure

touch the button that represents the setting you want.The button becomes shaded, and a Save button appears at the bottom of the screen.

b. For screens with numerical keypads (Figure 42),

touch the appropriate numbers to change the current value.The new value appears above the keypad.

3. Touch Save to complete the change.The current value is

updated in the upper left side of the screen, demonstrating that the change has been communicated to theTracer UC800 controller.The screen you were previously viewing appears.

41),

RTAE-SVX001B-EN 49

Controls

Figure 41. Chilled water setpoint screen

Figure 42. Changed chilled water setpoint screen

Keypad features:

• When you enter a new number, the value in the New value field is deleted and replaced with the new entry.

• The backspace (arrow) key deletes the characters you previously

• If the keypad is used to enter a setpoint that is out of range, Save button.

• Keypads that allow negative numbers have positive and

entered.

an error dialog will appear when you touch the

negative number (+/-) keys.

Table 29. Settings screen items

Description Resolution Units

Chiller Settings

Active Chilled Water Setpoint ± XXX.X °F / °C

Active Current Limit Setpoint XXX % %RLA

Active Panel Base Load Cmd On/Auto Text

Active Base Loading Setpoint XXX %

Active Base Loading Command On/Auto Text

Differential to Start XXX.X °F / °C

Differential to Stop XXX.X °F / °C

Setpoint Source (BAS/Ext/FP, Ext/Front Panel, Front Panel)

Evaporator Water Pump Off Delay XX Min

Condenser Pump Prestart Time XX Min

High Evap Water Temp Cutout XXX.X °F / °C

Evaporator Leaving Water Temp Cutout XX.X °F / °C

Low Refrigerant Temperature Cutout XX.X °F / °C

Current Limit Softload Start Point XXX.X %

Current Limit Control Softload Time XXXX Sec

Capacity Control Softload Time XXXX Sec

Local Atmospheric Pressure XXX.X psi/kPa

Power Up Start Delay XXX Min

Feature Settings

External Chilled/Hot Water Setpoint (Enable/Disable)

External Current Limit Setpoint (Enable/Disable)

LCI-C Diagnostic Encoding (Enable/Disable) Text

Chilled Water Reset (Constant, Outdoor, Return, Disable),

Return Reset Ratio XXX %

Return Start Reset XXX.X °F / °C

Return Maximum Reset XXX.X °F / °C

Outdoor Reset Ratio XXX %

Outdoor Start Reset XXX.X °F / °C

Outdoor Maximum Reset XXX.X °F / °C

Mode Overrides

Evap Water Pump (Auto, On) Auto Text

Cond Water Pump (Auto, On) Auto Text

Display Reference

Date Format (mmm dd, yyyy, dd-mmm-yyyy)

Data Separator Text

Time Format (12-hour, 24-hour) 12-hour Text

Unit System (SI, English) English Text

Pressure Units (Absolute, Gauge) Absolute Text

Number Format Text

BAS/Ext/FP Text

Text

Disable Text

mmm dd, yyyy Text

50 RTAE-SVX001B-EN

Display Settings

You can use the Tracer AdaptiView display to change the

format of the information that appears on the display, and to clean the touch screen.

Viewing the Settings Screen

Touch the Settings button in the main menu area

(Figure 39, p. 49) to view the Settings screen. Display Settings identifies a column of buttons located on the screen (see Figure 43).The buttons are:

• Display Preferences

• Language

• Date andTime

• Clean Display

Eachbutton provide access toa screen that is relatedto the

ton name.

but

Viewing and Changing Display Preferences

On the Settings screen, touch Display Preferences to view a screen containing these buttons (see Figure 43):

• Date Format

• Date Separator

• Time Format

• Unit System

• Pressure Units

• Number Format

Figure 43. Display reference screen

Controls

Figure 44. Date format page

To change the format:

1. Touch the button that shows that format you prefer.

2. Touch Save to confirm your selection and to return to the

Display Preferences screen.

Date Format . Use the Date Format screen to choose

from the following date formats:

• MMDDYYYY (default)

• YYYYMMDD

• DDMMYYYY

Date Separator . Use the Date Separator screen to

choose from the following date formats:

• None

• Slash (default)

• Hyphen

Time Format . Use theTime Format screen to choose

from the following time formats:

• 12 hour (default)

• 24 hour

Units System . Use the Display Units screen to choose

from the following display units:

•SI

• Inch-Pounds (default)

Pressure Units . Use the Pressure Units screen to

Each of the buttons shows the name of a display preference these buttons to view a screen where you can change the format.The button representing the format currently used is shaded (see the “MMDDYYYY” button).

and its format (current value).Touch any of

choose from the following pressure units:

• kPaA (default if “SI” is chosen for display units)

•kPaG

• PSIA (default if “Inch-Pound” is chosen for display units)

• PSIG

Number Format .

• 1000000.0

• 1000000,0

RTAE-SVX001B-EN 51

Controls

Figure 45. Language page

The language that is currently in use on the display is

expressed as the current value on the Language screen.

The button that displays the current value is shaded (see

the “English” buttoninFigure19as an example).

To change the language:

1. Touch the button that identifies the language you prefer.

2. Touch Save to confirm your selection and to return to the Settings screen.

To change the date or time:

. Touch the square presenting the attribute you want to

1

change.The square becomes highlighted.

2. Touch the up or down arrow key on the screen until the desired selection appears. Repeat the process for

your any other attributes you want to change.

3. Touch Save to confirm your selection and return to the

S

ettings screen.

Cleaning the Display

On the Settings screen, touch Clean Display to disable the

Tracer AdaptiView display screen for 15 seconds so that

you can clean the screen without it responding to touch. During this time, the screen is black with a number in the center that counts downthe seconds.After 15 seconds, the Settings screen re-appears.

Figure 47. Countdown screen

Figure 46. Date and time screen

The current date and time for the display is expressed as

the

current value.The current value appears below the

center line on the screen.

Above the center line, the following date and time attributes appear:

• Month

• Day

• Year

• Hour

• Minute

• AM/PM

Security Settings

If security if enabled, theTracer AdaptiView display requires that you log in with a four-digit security PIN to make setting changes that are protected by security.This feature prevents unauthorized personnel from doing so.

There are two levels of security, each allowing specific

changes to be made.

You can view all data without logging in.The log-in screen

appears only when you try to change a setting that is protected by security, or when you touch the Log in button from the Settings screen.

Disabling/Enabling Security

TheTracer AdaptiView display gives you the ability to

disable or enable the security feature that allows a user to log in and log out.

To disable security, you must be logged in:

1. From the Settings screen, touch the Security button.

The Security screen appears (Figure 48).

Note: If you are logged out, the Log in screen appears.

2. Touch the Disable button.The button becomes shaded.

52 RTAE-SVX001B-EN

Controls

3. Touch Save.The Settings screen appears with only the Security button visible.The Log in/Logout button is gone.

To enable security:

1

. From the Settings screen, touch the Security button.

The Security screen appears (Figure 48).

2. Touch the Enable button.The button becomes shaded.

3. Touch Save. The Settings screen appears with a Log

button, in addition to the Security button.

out

Figure 48. Security screen - disable

Figure 49. Security settings screen

2. Use the keypad to enter your PIN.

a. The PIN is a four-digit number, which was

configured service tool.

b. As you enter the number, the PIN remains hidden

by asterisks.

Note: If you enter an invalid PIN, an error message

appears on the Log in screen.

3. Touch Save.

a. If you viewed the Log in screen from touching Log

on the Settings screen, the Settings screen

in appears with a Log out button on it.

b. If the Log in screen appeared when you tried to

change a setting, you return to that setting screen.

Note: The PIN is valid until 30 minutes of inactivity

passes, or until you log out.

Figure 50. Log in screen

for your system with theTracer TU

Logging Out

To log out:

1. Touch the Log out button. A confirmation screen appears (Figure 51).

2. TouchYes to confirm that you want to log out. The

ettings screen appears with a Log in button on it.

Logging In

There are two levels of security:

• Security Level 1allows users to change a limited group secure settings.The default security PIN is 1111.

of

• Security Level 2 allows users to change all secure

tings.The default security PIN is 7123.

set

A technician must use theTracerTU service tool to define

different PIN, or to recall a PIN that has been forgotten.

a

When defining a PIN inTracerTU, the technician enters a

4-digit PIN that corresponds with the desired level of security.

To log in:

1. Touch the Log in button. The Log in screen appears

(Figure 49).

RTAE-SVX001B-EN 53

S

Figure 51. Log out confirmation screen

Controls

InvisiSound Ultimate - Noise Reduction Mode

When the InvisiSound Ultimate option is selected (model

number digit 12=3), noise reduction mode can be enabled to adjust fan speed and lower maximum sound levels. Reduced acoustic noise levels can be set for certain times, or on a schedule.The noise reduction feature can be requested by local time of day scheduling, external input or building automation system.

To enable this function at the external display:

• Access the Settings screen on the Tracer AdaptiView.

See Figure 52.

Figure 52. Noise reduction mode settings

• Set the Front Panel Noise Reduction Request to ON.

• Adjust the Noise Reduction Condenser Fan Speed

to desired value.

Clamp

• Setting for fan speed is as a percentage of 920 rpm

maximum fan speed Example: For fan speed of 700 rpm, enter a value of 76%

• Acceptable inputs are 60% (552 rpm) to 100% (920

rpm) in 1% increments

54 RTAE-SVX001B-EN

Controls

Tracer™ TU

The AdaptiView™TD7 operator interface allows for daily

operational tasks and setpoint changes. However, to adequately service StealthchillersTracer™TU service tool is required. (Non-Trane personnel, contact your local

Trane office for software purchase information.)TracerTU

adds a level of sophistication that improves service technician effectiveness and minimizes chiller downtime.

This portable PC-based service-tool software supports

service and maintenance tasks, and is required for software upgrades, configuration changes and major service tasks.

Tracer TU serves as a common interface to all Trane

chillers,and will customizeitself based on the propertiesof the chiller with which it is communicating. Thus, the service technician learns only one service interface.

The panel bus is easy to troubleshoot using LED sensor

verification. Only the defective device is replaced.Tracer

TU can communicate with individual devices or groups of

devices.

All chiller status, machine configuration settings, customizable limits, and up to 100 active or historic diagnostics are displayed through the service-tool software interface.

LEDs and their respectiveTracerTU indicators visually confirm the availability of each connected sensor, relay, and actuator.

Figure 53. TracerTU

®

Tracer TU is designed to run on a customer’s laptop,

connected to theTracer AdaptiView control panel with a USB cable.Your laptop must meet the following hardware and software requirements:

• 1 GB RAM (minimum)

• 1024 x 768 screen resolution

• CD-ROM drive

• Ethernet 10/100 LAN card

• An available USB 2.0 port

®

• Microsoft

system with Service Pack 3 (SP3) or Windows 7 Enterprise or Professional operating system (32-bit or 64-bit)

• Microsoft .NET Framework 4.0 or later

Notes:

• TracerTU is designed and validated for this minimum

laptop configuration. Any variation from this configuration may have different results. Therefore, support for TracerTU is limited to only those laptops with the configuration previously specified.

• For more information, seeTTU-SVN01A-ENTracerTU Getting Started Guide

Windows®XP Professional operation

RTAE-SVX001B-EN 55

Pre-Start

Upon completion of installation, complete the Stealth™ RTAE Installation Completion Check Sheet and Request for

Trane Service checklist in chapter “Log and Check Sheet,”

p. 90.

Important: Start-up must be performed by Trane or an

agent ofTrane specifically authorized to perform start-up and warranty of Trane products. Contractor shall provideTrane (or an agent ofTrane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the scheduled start-up.

56 RTAE-SVX001B-EN

Start-Up and Shutdown

Important: Initial unit commissioning start-up must be

performed byTrane or an agent of Trane specifically authorized to perform start-up and warranty of Trane products. Contractor shall provideTrane (or an agent ofTrane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the scheduled start-up.

Unit Start-Up

NOTICE:

Equipment Damage!

Ensure that the compressor and oil sump heaters have been operating properly for a minimum of 24 hours before starting. Failure to do so could result in equipment damage.

If required, once the system has been operating for approximately 30 minutes and has become stabilized, complete the remaining start-up procedures, as follows:

1. Check the evaporator refrigerant pressure and the condenser refrigerant pressure under Refrigerant Report on the AdaptiView ™TD7.The pressures are referenced to sea level (14.6960 psia).

2. Check the EXV sight glasses after sufficient time has elapsed to stabilize the chiller.The refrigerant flow past the sight glasses should be clear. Bubbles in the refrigerant indicate either low refrigerant charge or excessive pressure drop in the liquid line or a stuck open expansion valve. A restriction in the line can sometimes be identified by a noticeable temperature differential between the two sides of the restriction. Frost will often form on the line at this point. Proper refrigerant charges are shown in the General Information Section.

Important: A clear sight glass alone does not mean that

the system is properly charged. Also check system subcooling, liquid level control and unit operating pressures.

If chiller is limited by any limiting conditions, contact local

Trane service organization for more information.

Temporary Shutdown And

Restart

and automatically restart the pump when the unit starts normally.

3. The unit will start normally, provided the following conditions exist:

a. The UC800 receives a call for cooling and the

differential-to-start is above the setpoint.

b. All system operating interlocks and safety circuits

are satisfied.

Extended Shutdown Procedure

The following procedure is to be followed if the system is

to be taken out of service for an extended period of time, e.g. seasonal shutdown:

1. Test the unit for refrigerant leaks and repair as necessary.

2. Open the electrical disconnect for the chilled water pump. Lock the switches in the “OPEN” position.

NOTICE:

Equipment Damage!

To prevent pump damage, lock the chilled water pump

disconnects open and verify pump is off before draining water.

3. Close all chilled water supply valves. Drain the water from the evaporator.

4. With the water drained from evaporator, disconnect 115 power from evaporator heaters at terminals 1X4-1 and 1X4-2.

NOTICE:

Equipment Damage!

Applying power to the evaporator heaters when no

water is present could result in damage to heaters.

5. Open the main electrical disconnect and lock in the “OPEN” position.

NOTICE:

Equipment Damage!

Lock the disconnect in the “OPEN” position to prevent accidental start-up and damage to the system when it has been shut down for extended periods.

To shut the unit down for a short time, use the following

procedure:

1. Press the STOP key on the AdaptiviewTD7. The compressors will continue to operate and an operational pumpdown cycle will be initiated..

2. UC800 pump control will turn off the pump (after a minimum 1 min. delay) when the STOP key is pressed

RTAE-SVX001B-EN 57

6. At least every three months (quarterly), check the refrigerant pressure in the unit to verify that the refrigerant charge is intact.

Start-Up and Shutdown

Seasonal Unit Start-Up Procedure

1. Close all valves and re-install the drain plugs in the evaporator.

2. Service the auxiliary equipment according to the startup/maintenance instructions provided by the respective equipment manufacturers.

3. Close the vents in the evaporator chilled water circuits.

4. Open all the valves in the evaporator chilled water circuits.

5. Open all refrigerant valves to verify they are in the open condition.

6. If the evaporator was previously drained, vent and fill the evaporator and chilled water circuit.When all air is removed from the system (including each pass), install the vent plugs in the evaporator water boxes.

7. Check the adjustment and operation of each safety and operating control.

8. Refer to the sequence for daily unit startup for the remainder of the seasonal startup.

System Restart After Extended Shutdown

NOTICE:

Proper Water Treatment!

The use of untreated or improperly treated water in

this equipment could 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 water treatment, if any, is required.Trane assumes no responsibility for equipment failures which result from untreated or improperly treated water, or saline or brackish water.

4. Close the fused-disconnect switches that provides power to the chilled water pump.

5. Start the evaporator water pump and, while water is circulating, inspect all piping for leakage. Make any necessary repairs before starting the unit.

6. While the water is circulating, adjust the water flows and check the water pressure drops through the evaporator. See

Curves,” p. 27 and water flow rates in Table 1, p. 10.

7. Verify proper operation of flow switch on the evaporator waterbox.

8. Stop the water pump. The unit is now ready for startup as described previously.

“EvaporatorWaterside Pressure Drop

NOTICE:

Equipment Damage!

Ensure that the compressor and oil sump heaters have been operating properly for a minimum of 24 hours before starting. Failure to do so could result in equipment damage.

Follow the procedures below to restart the unit after extended shutdown:

1. Verify that the liquid line service valves, oil line, compressor discharge service valves and suction service valves are open (backseated).

NOTICE:

Compressor Damage!

Catastrophic damage to the compressor will occur if the oil line shut off valve or the isolation valves are left closed on unit start-up.

2. Check the oil sump level (see “Oil Sump Level Check,”

p. 69).

3. Fill the evaporator water circuit.Vent the system while it is being filled. Open the vent on the top of the evaporator and condenser whilefilling and close when filling is completed.

58 RTAE-SVX001B-EN

Sequence of Operation

Start-Up and Shutdown

This section will provide basic information on chiller

operation for common events. With microelectronic controls, ladder diagrams cannot show today’s complex logic, as the control functions are much more involved than older pneumatic or solid state controls.

Adaptive control algorithms can also complicate the exact sequence of operations.This section illustrates common control sequences.

Software Operation Overview

The Software Operation Overview shown in Figure 54,

p. 59 is a diagram of the five possible software states.This

diagram can be though of as a state chart, with the arrows and arrow text depicting the transitions between states.

Figure 54. Software operation overviewFigure 54

Run Inhibit

Confirmed

Shutdown

Shutting Down

Stop Command or Diagnostic

• The text in the circles is the visible top level operating modes that are displayed onTracer™ AdaptiView.

• The shading of each software state circle corresponds to the shading onthe time lines that show the state the chiller is in.

There are five generic states that the software can be in:

• Power Up

• Stopped

• Starting

• Running

• Stopping

•

Power Up

Stopped

or

Command

Release

of Inhibit

Auto

Boot and

Self Test

Auto

or

Waiting to Start

Stop Command

Diagnostic

Running Limit

Timelines

• Thetime line indicates theupper leveloperating mode, as it would be viewed on theTracer™ AdaptiView.

• The shading color of the cylinder indicates the software state.

• Text in parentheses indicates sub-mode text as viewed onTracer AdaptiView.

• Text above the time line cylinder is used to illustrate inputs to the Main Processor. This may include user input to theTracer AdaptiViewTouch screen, control inputs from sensors, or control inputs from a Generic BAS.

• Boxes indicate control actions such as turning on relays, or pulsing compressor load or unload solenoids.

• Smaller cylinders under the main cylinder indicate diagnostic checks.

Running

or

Check for

Confirmed Start

Check for

Differential

to Stop

Differential

to Start

• Text outside a box or cylinder indicates time based functions.

• Solid double arrows indicate fixed timers.

• Dashed double arrows indicate variable timers.

RTAE-SVX001B-EN 59

Start-Up and Shutdown

)

7/1

6

/

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2

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Power Up Diagram

Figure 55, p. 60 shows the respectiveTD-7 AdaptiView

screens during a power up of the UC800 and display. This process takes 25 secondsfor the UC800 and 90 secondsfor the display. On all power ups, the software model always

Figure 55. Sequence of operation: power up diagram

Operator Display Power Up

Black Screen

First Trane Logo

Black Screen

10 Sec

Minimum Time Until 1st Compressor Could Restart

(if “P owe r U p D ela y Inh ibit” s et to 0; Default is 105 sec)

External

Power

Applied

Operator Display and UC800

Start Booting

UC800 Boot Up

Booting UC800

(25 Seconds)

UC800 Fully Operational

IPC Bus Comm Begins

18 Seconds 27 Seconds

Operator Display Boot Up and Load - 90 sec Total to Display Ready

(39 Seconds)

Grey Screen

5 Sec

Last Mode

IF

Auto*

Last Mode

will transition through the 'Stopped' Software state independent of the last mode. If the last mode before power down was 'Auto', the transition from 'Stopped' to 'Starting' occurs, but it is not apparent to the user.

Second Tr ane Logo - Loading

User Interface Template...

Loading Dat a….

15 Sec

Starting Sequence

S ee “Power Up to

Starting” Sequence Diagram

Stop*

Stopped

15 Seconds

Display Ready

*Display will show

either Auto or Stop

button as “ active”

(depressed) once

it is ready

Continue Along Start

Sequence

See “Power Up

to S tarti ng ”

Remain in

“ S top” indef in ite ly

until “Auto”

command- See

“ S toppe d T o S tarting”

60 RTAE-SVX001B-EN

Power Up to Starting

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Figure 56, p. 61 diagram shows the timing from a power

up event to energizing the 1 allowable time would be under the following conditions:

• No motor restart inhibit time left from subsequent starts

• Evaporator Water flow occurs quickly with pump on command

• Power up Start Delay set to 0 minutes

Figure 56. Sequence of events: power up to starting

st

compressor.The shortest

Start-Up and Shutdown

• Need to cool (differential to start) already exists

• Oil level is detected immediately

The above conditions would allow for a minimum power

up to starting the 1 (variations may exist due to options installed). Note that it is not advisable to start a chiller “cold”, the oil heaters should be in operation for a sufficient length of time prior to first start. Consult the chiller’s IOM for specifics.

st

compressor time of about 45 seconds

Power

Applied

Power

UC800

Boot Time

(25 Sec)

EXVs self-

close on power up

Oil Heaters Always Energized when Compressor

is De-energized

Auto Mode commanded by Front Panel or BAS

Up

Confirm Evaporator Water Flow (6 Second Filter)

Enforce Restart Inhibit Timer (0 to 1 minute)

Power Up Delay Inhibit Timer

(User Adjustable 0 to 30 minutes)

Energize Evaporator

Water Pump Relay

Confirm Evaporator Water

Flow Within 20 minutes

EXV remains closed

Auto

(6 Second Filter)

Auto

Wait for Need

To Cool

(Diff to Start)

Call for Cooling (Differential to Start is met)

Waiting

To Start

Confirm

Presence of Oil

(0 to 90 seconds)

Confirm Presence

of Oil Within

90 Seconds

* Lead compressor (and its lead circuit) is determined by staging algorithm - “Fixed Staging” or “Balanced Wear” selection - also influenced by lockouts, restart inhibit, or diagnostics present.

* Lead Compressor (and its lead circuit) is determined b

Waiting

To Start

EXV moving to

Preposition

0 to 25 Seconds

Pre-Position EXV of

Lead Circuit

Check Evap Pressure for

Low Pressure Cutout

stagingalgorithm –“Fixed Staging”

Transition to Running

Send Start Command to Lead Compressor*

Start Control of

Condenser Fan Flow

RTAE-SVX001B-EN 61

Start-Up and Shutdown

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/

Stopped to Starting

Figure 57 shows the timing from a stopped mode to

energizing the 1 time would be under the following conditions:

• No motor restart inhibit time left from subsequent starts

Figure 57. Sequence of events: stopped to starting

st

compressor. The shortest allowable

• Evaporator Water flow occurs quickly with pump on command

• Need to cool (differential to start) already exists

The above conditions would allow a compressor tostart in

about 20 seconds.

Stopped

Or Run

Inhibit

Auto Mode commanded by Front Panel or BAS

Stop

Confirm Evaporator Water Flow (6 Second Filter)

Enforce Restart Inhibit Timer

(0 to 1 minute)

Energize Evaporator

Water Pump Relay

Confirm Evaporator Water

Always Energized when

Compressor is De-energized

EXV remains closed

Auto

Flow Within 20 minutes

(6 Second Filter)

Oil Heaters

Auto

Wait for Need

To Cool

(Diff to Start)

Call for Cooling (Differential to Start is met)

Waiting

To Start

Confirm

Presence of Oil

(0 to 90 seconds)

Confirm Presence

of Oil Within

90 Seconds

* Lead compressor (and its lead circuit) is determined by staging algorithm - “Fixed Staging” or “Balanced Wear” selection - also influenced by lockouts, restart inhibit, or diagnostics present.

* Lead Compressor (and its lead circuit) is determined b

Waiting To Start

EXV moving to

Preposition

0 to 25 Seconds

Pre-Position EXV of

Lead Circuit

Check Evap Pressure for

Low Pressure Cutout

stagingalgorithm –“Fixed Staging”

Transition to Running

Send Start Command to Lead Compressor*

Start Control of

Condenser Fan Flow

62 RTAE-SVX001B-EN

Running (Lead Compressor/Circuit Start and Run)

/

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/

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/

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/

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/

Figure 58 shows a typical start and run sequence for the

lead compressor and its circuit.

Figure 58. Sequence of operation: running (lead compressor/circuit start nd run)

Start-Up and Shutdown

Lead

Compressor

Running

Chiller and Lead Circuit

Mode is “Running” -Lag Circuit Mode is “Auto”

Running

Hold EXV Pre-position

(10 Seconds)

Hold EXV of Lead

Circuit at pre-

position for 10 sec

De-energize

Oil Heaters

Of Lead Circuit

Control Lead Circuit

Condenser Fans for

Optimum Differential

Pressure,

ƒ(Cprsr Spd, OA Temp)

Running

Running Limit

Compressor

Limit Control

Modulate EXV for

Liquid Level &

Pressure Control

Modulate Compressor

Speed for

Capacity Control

Enter Limit Mode

Running

Lead Circuit:

Modulate

Speed for

Exit Limit Mode

Running

Modulate Compressor

Speed for

Capacity Control

EXV moving to preposition

Pre-Position EXV of

Lag Circuit

Prepare to Start

Lag Compressor,

Check for Oil,

Check for LPC

Enforce All Running Mode Diagnostics for Chiller, Lead Compressor and its Circuit

*Note: The decision to stage on or off another compressor is determined by

the Average Running Compressor Load Command, Water Temperature Error, and Time Since Last Stage

Running (Lag Compressor/Circuit Start and Run)

Figure 59 shows a typical start and run sequence for the

lag compressor and its circuit.

Figure 59. Sequence of operation: running (lag compressor/circuit start nd run)

Both

Compressors

Running

Chiller and Both Circuit

Modes are “Running”

Running

Hold EXV Pre-position

(10 Seconds)

Hold EXV of Lag

Circuit at pre-

position for 10 sec

De-energize

Oil Heaters

Of Lag Circuit

Control Both Circuit Condenser Fans for

Optimum Differential

Pressure,

ƒ(Cprsr Spd, OA Temp)

Enter Limit Mode

Running

Running Limit

Modulate

Compressor

Speed for

Limit Control

Modulate EXV for

Liquid Level &

Pressure Control

Modulate Compressor

Speed for

Capacity Control

Running

Lag Circuit:

Exit Limit Mode

Running

Modulate Compressor

Speed for

Capacity Control

Stage On Setpoint Met*

Running

Lag Circuit:

Waiting to Start

0to25Seconds

Start Control of

Condenser Fan Flow

on Lag Circuit

Send Start Command

to Lag Compressor

Both Compressors Running At or Near Max Speed (Unable to Achieve CWSP)

Running

Energize Maximum

Capacity Relay after the

Adjustable Filter Time

(0 to 600 Seconds)

Maximum Capacity

Submode

Continue Running

Continue

Running

(Both

Comprsrs

&Max

Capacity

Enforce All Running Mode Diagnostics for Chiller, Lead Compressor and its Circuit

*Note: The decision to stage on or off another compressor is determined by

the Average Running Compressor Load Command, Water Temperature Error, and Time Since Last Stage

RTAE-SVX001B-EN 63

Start-Up and Shutdown

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/

Satisfied Setpoint

Figure 60 shows the normal transition from Running to

shutting down due to the Evap Leaving water temp falling below the differential to stop setpoint.

Figure 60. Sequence of events: satisfied setpoint

Differential to Stop is Met

Running

Last

Compressor

Running

Last Circuit Mode:

Running

At Min Speed

(0 to 25 Seconds)

IF*

Pumpdown

Required

*

Note: Operational Pumpdown is required if the Outdoor Air Temperature is less than 50F.

**

Note: Operational Pumpdown is Terminated Normally when the Evaporator Refrigerant

Shutting Down

Last Circuit Mode: Shutting Down

SubMode: Operational Pumpdown

Operational Pumpdown

(0 Seconds to 2 Minutes)

Close EXV

Fully Close EXV

No Pumpdown Required

Perform Operational

Pumpdown for Last

Circuit if Required

Normal Pumpdown

Termination Criteria Met

*

Check for

**

*

Pressure is at or below 20 PSIA. The Maximum Allowed Time for Operational Pumpdown is 2 Minutes.

Normal Pumpdown Termination Criteria is Met for Last Circuit

Auto

Both Circuit Modes:

Waiting for Need to Cool

Send Stop Command

To Compressor

Turn Off Last Circuit’s

Condenser Fans

Enforce All Non Running

Mode Diagnostics

Energize Last Circuit

Oil Heaters

**

Auto

64 RTAE-SVX001B-EN

Normal Shutdown to Stopped or Run Inhibit

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n

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Figure 61 shows theTransition from Running through a

Normal (friendly) Shutdown. The Dashed lines on the top

Figure 61. Sequence of events: normal shutdown to stopped or run inhibit

Local Stop Chiller Level Diagnostic – Normal Shutdown Latched Chiller Level Diagnostic – Normal Shutdown Nonlatched Building Automation System Stop External Auto-Stop

Shutting Down

One or

More

Circuits

Running

Pumpdown

Required

Running Circuit Modes: Shutting Down

SubMode: Operational Pumpdown

Operational Pumpdown

(0 Seconds to 2 Minutes)

Close EXV

(0 to 25 Seconds)

2

Fully Close EXV

No Pumpdown Required

IF*

Perform Operational

Pumpdown for All

Running Circuits if

Termination Criteria Met

*

Required

Check for

Normal Pumpdown

*

**

attempt to show the final mode if you enter the stop via various inputs.

Normal Pumpdown Termination Criteria is Met for All Circuits

Shutting Down

Circuit Modes:

Auto

Evaporator Pump Off Delay

(Adjustable 1 to 30 Minutes)

Send Stop Command to

All

Running Compressors

Energize All Heaters

Fully Close Both EXVs

Turn Off All Running

Circuits Condenser Fans

Start-Up and Shutdown

**

Stopped or Run Inhibit

Circuit Modes:

Stopped or Auto

De-Energize Evaporator

Water Pump Relay

*Note: Operational Pumpdown is required if the Outdoor Air Temperature is less than 50°F.

**

Note: Operational Pumpdown is terminated normally when the Evaporator Refrigerant Pressure is at or below 20 psia.

The Maximum Allowed time for Operational Pumpdo is 2 minutes.

Stop

Run I

o

Immediate Shutdown to Stopped or Run Inhibit

Figure 62 shows theTransition from Running through an

Immediate Shutdown. The dashed lines on the to attempt

Figure 62. Sequence of events: immediate shutdown to stopped or run inhibit

Chiller Level Diagnostic – Immediate Shutdown Non-Latching Chiller Level Diagnostic – Immediate Shutdown Latching Front Panel Immediate Shutdown

One or More

Running

Shutting Down

Compressors

Compressor Deceleration Time

Send Stop Command to

All Running Compressors

Energize All Heaters

Fully Close Both EXVs

Turn Off All

Running Circuits

Condenser Fans

to show the final mode if you enter the stop via various inputs.

Stopped

De-Energize Evaporator

Water Pump Relay

Run Inhibit

or

Stopped

RTAE-SVX001B-EN 65

Start-Up and Shutdown

Ice Making (Running to Ice Making to Running)

Figure 63 shows the transition from normal cooling to Ice

making, back to normal cooling

Figure 63. Sequence of events: ice making (running to ice making to running)

Running

Ice Making Command:

1. Tracer

2. External

3. Front Panel

Running

(Unit is Building Ice)

Maximum 1:10 to fully

loaded

Stage and modulate all compressors in sequence to full load (if not already)

Ignore Softloading and SetCLS=100%

Energize Ice Building Relay

De-energize Heaters, and Control EXVs per normal staging - See other sequence diagrams

Control Circuit’s

Condenser Fans for Diff Pressure

Head Relief Request

Relay Delay (1 to 60

mins adj)

Enforce All Limits and Running Mode Diagnostics

Energize Head Relief Request Relay

Ice Making Command Withdrawn (prior to ice complete)

Run Inhibit

(Ice to Normal Transition)

Ice To Normal Transition Timer

(fixed 2 mins)

Run Unload, Close EXVs and Perform Operational Pumpdown (if regd) then Shutoff Compressors, Energize Heaters

Confirm No

Compressor Currents

Close EXVs or leave closed

for Circuits’ Off Cycle

Turn off both Circuits’

Condenser Fans

De-Energize Head Relief Request and Ice Building Relay

Continue to Run Evap Water Pump Throughout

Evap Leaving Water Temp Rises Above the Differential To Start

Auto

Running

Pre-position EXV, Prestart Condenser Fans

Start Compressors and Circuits per normal staging – See other sequence diagrams

Control Circuit’s

Condenser Fans for Diff Pressure

De-energize Heaters, and Control EXVs per normal staging - See other sequence diagrams

Enforce All Limits and Running Mode Diagnostics

Running

66 RTAE-SVX001B-EN

Ice Making (Auto to Ice Making to Ice Making Complete)

gpp g p

Figure 64 shows the transition fromAuto to Ice making, to

Ice Making Complete.

Figure 64. Sequence of events: ice making (auto to ice making to ice making complete)

Start-Up and Shutdown

Ice Making Command:

1. Front Panel

2. Tracer

3. External Input

Auto

Maximum 1:10 to fully

Stage and modulate all compressors in sequence to full load (if not already)

Ignore Softloading and SetCLS=100%

De-energize Heaters, and Control EXVs per normal staging - See other sequence diagrams

Control Circuit’s

Condenser Fans for Diff Pressure

Head Relief Request Relay

Delay(1to60minsadj)

Enforce All Limits and Running Mode Diagnostics

Running

(Unit is Building Ice)

loaded

Energize Ice Building Relay

Energize Head Relief Request Relay

Evap Entering Water Temp Falls Below the Ice Termination Setpoint

Shutting Down

Run Unload, Close EXVs and Perform Operational Pumpdown (if regd) then Shutoff Compressors, Energize Heaters

Confirm No

Compressor Currents

De-Energize Ice Building Relay

De-Energize Head Relief Request Relay

Run Inhibit –

Submode: Ice

Building Complete

will return to “Auto” and normal cooling

mode with removal of Ice Command

Enforce All Non- Running Mode Diagnostics

Leave EXVs Closed or

Close EXV for Circuits’

Off Cycle

Turn off both Circuits’

Condenser Fans

De-Energize Evaporator Water Pump Relay (no delay time applied)

RTAE-SVX001B-EN 67

Maintenance

WARNING

Hazardous Voltage - Pressurized Burning Fluid!

The motors in the compressors have strong permanent

magnet motors and have the capability to generate voltage during situations when the refrigerant charge is being migrated.This potential will be present at the motor terminals and at the output of the variable speed drives in the power panel.

Before removing compressor terminal box cover for servicing, or servicing power side of control panel, CLOSE COMPRESSOR DISCHARGE SERVICE VALVE and disconnect all electric power including remote disconnects. Discharge all motor start/run capacitors. Follow lockout/tagout procedures to ensure the power cannot be inadvertently energized. Verify with an appropriate voltmeter that all capacitors have discharged.

The compressor contains hot, pressurized refrigerant.

Motor terminals act as a seal against this refrigerant. Care should be taken when servicing NOT to damage or loosen motor terminals.

Do not operate compressor without terminal box cover in place.

Failure to follow all electrical safety precautions could result in death or serious injury.

For additional information regarding the safe discharge of capacitors, see “Adaptive Frequency™ Drive (AFD

Capacitor Discharge,” p. 32 and PROD-SVB06A-EN.

3

WARNING

Hazardous Voltage w/Capacitors!

Disconnect all electric power, including remote disconnects and discharge all motor start/run and AFD (Adaptive Frequency™ Drive) capacitors before servicing. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized.

• For variable frequency drives or other energy storing components provided byTrane or others, refer to the appropriate manufacturer’s literature for allowable waiting periods for discharge of capacitors.Verify with an appropriate voltmeter that all capacitors have discharged.

• DC bus capacitors retain hazardous voltages after input power has been disconnected. Follow proper lockout/tagout procedures to ensure the power cannot be inadvertently energized. After disconnecting input power, wait five (5) minutes for the DC capacitors to discharge, then check the voltage with a voltmeter. Make sure DC bus capacitors are discharged (0 VDC) before touching any internal components.

Failure to follow these instructions could result in death or serious injury.

For additional information regarding the safe discharge of capacitors, see “Adaptive Frequency™ Drive (AFD

Capacitor Discharge,” p. 32 and PROD-SVB06A-EN.

)

This section describes the basic chiller preventive

maintenance procedures, and recommends the intervals at which these procedures should be performed. Use of a periodic maintenance program is important to ensure the best possible performance and efficiency from a Stealth™ chiller.

Use an Operator Log (see “Log and Check Sheet,” p. 90)to record an operating history for unit.The log serves as a valuable diagnostic tool for service personnel. By observing trends in operating conditions, an operator can anticipate and prevent problem situations before they occur.

If unit does not operate properly during inspections, see

“Diagnostics,” p. 73.

)

3

68 RTAE-SVX001B-EN

Maintenance

Recommended Maintenance

Weekly

While unit is running in stable conditions.

1. At AdaptiView™TD7 orTracer™TU service tool, check pressure for evaporator, condenser and intermediate oil.

2. Observe liquid line sight glass on EXV. If liquid line sight glass has bubbles measure the subcooling entering the EXV. Subcooling should alwaysbe greater than 10°F.

3. Inspect the entire system for unusual operation.

4. Inspect the condenser coils for dirt and debris. If the coils are dirty, See

Inspection,” p. 72.

Equipment Damage!

Do not use detergents to clean RTAE coils. Use clean water only. Use of detergents on RTAE coils could cause damage to coils.

Monthly

1. Perform all weekly maintenance procedures.

2. Record the system subcooling.

Annual

1. Perform all weekly and monthly procedures.

2. Check oil sump oil level while unit is off. See“Oil Sump

Level Check,” p. 69.

3. Perform pH test of drive cooling fluid. See “pHTest,”

p. 71.

4. Have a qualified laboratory perform a compressor oil analysis to determine system moisture content and acid level.

5. Contact a Trane service organization to leak test the chiller, to check operating and safety controls, and to inspect electrical components for deficiencies.

6. Clean and repaint any areas that show signs of corrosion.

7. Clean the condenser coils. See “Condenser Coils —

Cleaning and Inspection,” p. 72.

Equipment Damage!

Do not use detergents to clean RTAE coils. Use clean water only. Use of detergents on RTAE coils could cause damage to coils.

“Condenser Coils — Cleaning and

NOTICE:

Refrigerant and Oil Charge Management

Proper oil and refrigerant charge is essential for proper unit operation, unit performance, and environmental protection. Only trained and licensed service personnel should service the chiller.

Table 30 lists baseline measurements for Stealth units

running at AHRI standard operating conditions. If chiller measurements vary significantlyfrom values listed below, problems may exist with refrigerant and oil charge levels. Contact your localTrane office.

Note: Low temperature applications units will have

values that vary from Table 30. Contact your local

Trane office for more information.

Table 30. Typical Stealth baselines (AHRI conditions)

Measurement Baseline

Evaporator Pressure 51 psia

Evaporator Approach 3.4°F

EXV Position (150-200T units) 45-50% open

EXV Position (225-300T units) 61-64% open

Evaporator delta T - entering 54°F

Evaporator delta T - leaving 44°F

Discharge Superheat 16.5°F

Condenser Pressure 212 psia

Subcooling 10-20°F

Lubrication System

The lubrication system has been designed to keep most of

the oil lines filled with oil as long as there is a proper oil level in the oil sump.

Oil Sump Level Check

The oil level in the sump can be measured to give an

indication of the system oil charge. Follow the procedures below to measure the level.

1. Run the unit as near to full load as possible for a minimum of 30 minutes. For an accurate reading, 40 or more minutes at full load with normal/steady discharge superheat readings and no limits/warnings is recommended. Assessing oil charge after running at minimum or low loads may lead to an inaccurate reading.

2. Cycle the compressor off line.

3. Let the chiller sit (powered, but off line) to allow the oil separator heater to boil off the refrigerant that may be in the oil separator. An initial assessment of the oil separator level may bemade after 30 minutesof heater ON dwell time, but oil charge adjustments should not be made without allowing the oil heaters to run for a minimum of 4 hours.

RTAE-SVX001B-EN 69

Maintenance

NOTICE:

Equipment Damage!

Never operate the compressor with the sightglass service valves opened. Close the valves after checking the oil level. Operating compressors with service valves open will result in severe oil loss and equipment damage.

4. Attach a 3/8” or 1/2” hose with a sightglass in the middle to the oil sumpservice valve(1/4” flare) and the oil separator service valve (1/4” flare). See Figure 65,

p. 70 for valve locations.

Note: Using

high pressure rated clear hose with appropriate fittings can help speed up the process. Hose must be rated to withstand system pressures as found on unit nameplate.

Figure 66. Nominal oil level

Figure 65. Oil service valves

To Oil Separator Service Valve

Oil Service Valve

5. After the unit is off line for 30 minutes, move the sightglass

along the side of the oil sump.

6. The nominal oil level from the bottom of the oil separator

should be as shown in Table 31 and

Figure 66, p. 70. Depending on runningconditions and

oil heater dwell time, some deviation from nominal levels

is expected.

Important: If level is less than 4 inches from the bottom

of the oil separator, contact your localTrane office.

To Oil Separator Service Valve

Nominal oil level should be: 10” oil sep: 9.0” 12” oil sep: 8.5”

Table 31. Oil sump level height

Unit Size (tons)

Oil Separator Size 10” 12”

Nominal Oil Charge Height

in (mm)

70 RTAE-SVX001B-EN

Oil Separator

Size

150-200 225 - 300

9 8.5

Nominal Oil

Height

Maintenance

Drive Cooling System

NOTICE:

Equipment Damage!

Use only Trane Heat Transfer Fluid P/N CHM01023. This fluid is a direct use concentration and is not to be diluted. Do not top off with water or any other fluid. Use of unapproved fluids, or dilution of approved fluid could result in catastrophic equipment damage.

Service Intervals

NOTICE:

Equipment Damage!

Drive cooling fluid and strainer must be serviced every five (5) years. Failure to do so could result in equipment damage.

• Every (5) years, contact your localTrane office to service drive fluid and strainer.

• On a yearly basis, a fluid pH test should be performed.

Unit Diagnostics

An improperly filled drive cooling system (either low fluid level or entrapped air in the circuit) can result in the AFD drive or output load inductors overheating.This condition may result in the following diagnostics:

• AFD xA Inverter Heatsink Over Temp

• AFD xA Rectifier Heatsink OverTemp

• AFD xA Estimated Junction OverTemp

• AFD xA Load Inductor HighTemperature

A front panel warning of Low Oil Return or AFD Cooling –

does not indicate an issue with the drive cooling fluid

CktX system, but represents a low refrigerant level reported by the liquid level sensor for a given length of time.

If chiller diagnostics indicated drive cooling system problem, contact your localTrane office.

pH Test

Obtain a sample of fluid fromthe drive cooling loop via the loop drain located near the oil return heat exchanger.Test for pH level using litmus paper with a 0.5 resolution.

• pH < 8 indicates fluid to be changed

• pH < 7 indicates potential component damage

Figure 67. Pressure relief cap

Pressure Relief Cap

Drive Cooling

Fluid

Expansion Tank

Drive Cooling Expansion Tank

Proper fluid level is important to the operation of the unit.

To verify proper level, inspect the liquid level in each of the

fluid reservoirs (located behind the chiller control panel). See Figure 68 for fluid levels under various temperature conditions. If levels levels are low, contact your localTrane office.

Figure 68. Drive cooling expansion tank fill

A

Max Fill 70°F (21°C) Design Fill 125°F (51.7°C)

Max Fill -20°F (-28.9°C)

B

Design Fill 70°F (21°C)

C

Min Fill 70°F (21°C) Design Fill -20°F (-28.9°C)

(a)

Pressure Relief Cap

The pressure relief cap is an automotive style pressure-

vent radiator cap. See Figure 67, p. 71.The setting for the relief spring is 16 lbs.The function of the relief cap can be verified with a standard automotive radiator cap tester.

RTAE-SVX001B-EN 71

(a) Fill lines are NOT marked on tank. The A level is just below upper fitting,

C level is just above lower fitting. B is in the middle of the fittings.

Maintenance

Condenser Coils — Cleaning and Inspection

Coil Cleaning and Inspection Interval

Clean condenser coils at least once a year or more frequently if it is in a “dirty” environment. A clean condenser coil will help maintain chiller operating efficiency. Perform coil inspection each time coils are cleaned.

Cleaning Air Side of RTAE Coils

NOTICE:

Equipment Damage!

Do not use coil cleaning agents to clean uncoated RTAE coils. Use clean water only. Use of coil cleaning agents on uncoated RTAE coils could cause damage to coils.

Do not use detergents to clean the air side of RTAE coils. Use clean water only. Clean from inside out by removing end panels.

Cleaning Coated Coils

WARNING

Hazardous Chemicals!

Coil cleaning agents can be either acidic or highly alkaline and can burn severely if contact with skin occurs. Handle chemical carefully and avoid contact with skin.ALWAYS wear Personal Protective Equipment (PPE) including goggles or face shield, chemical resistant gloves, boots, apron or suit as required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data Sheet and follow all recommended safe handling practices. Failure to follow all safety instructions could result in death or serious injury.

Reinstallation of Compressor Shipping Bolts

Units with InvisiSound™ Ultimate Only (Model Number Digit 12 = 3)

If compressor removal or unit move is required on a unit with InvisiSound Ultimate option, reinstall compressor shipping bolts which were removed in section

“Compressor Shipping Bolt Removal,” p. 23.

Servicing Chiller Roof

WARNING

Do Not Climb on Top of Chiller!

Do not climb on roof to service unit. Use service tools designed to access top of chiller. Failure to follow these instructions could result in technician falling off the equipment which could result in death or serious injury.

Service tools are available to access top of chiller. Entry on chiller roof is not required.

Coated coils may be cleaned using traditional detergents.

Coil Corrosion Protection Inspection

Inspect corrosion protection at each coil refrigerant connection where the copper tube joins the aluminum manifold. If damaged or missing, wrap new Prestite Insulation (STR01506) on joint to cover area from the aluminum header body to at least 2 inches of the copper tube. Seal insulation using hand pressure. Rubber gloves are suggested when handling insulation.

72 RTAE-SVX001B-EN

Diagnostics

Diagnostic Name and Source: Name of Diagnostic and its source. Note that this is the exact text used in the User Interface and/or ServiceTool displays.

AffectsTarget: Defines the “target” or what is affected

by the diagnostic. Usually either the entire Chiller, or a particular Circuit or Compressor is affected by the diagnostic (the same one as the source), but in special cases functions aremodified or disabled bythe diagnostic. “None” implies that there is no direct affect to the chiller, sub components or functional operation.

Design Note: Functions that are affected by a diagnostic are simply reported as “chilleror circuitx” targetsinTracer

TU and on the Alarms page of the AdaptiView™ display,

even though only a specific function and not the entire circuit or chiller would be effected.

Severity: Defines the severity of the above effect. Immediate means immediate shutdown of the affected portion, Normal means normalor friendly shutdownof the affected portion, Special Action means a special action or mode of operation (limp along) is invoked, but without shutdown, and Info means an Informational Note or

Warning is generated. Design Note:TracerTU does not

support display of “Special Action”, on its Diagnostics pages, so that if a diagnostic has a special action defined in the table below, it will be displayed only as “Informational Warning” as long as no circuit or chiller

shutdown results. If there isa shutdownand special action defined in the table, then theTracerTU Diagnostics Page display will indicate the shutdown type only.

Persistence: Defines whether or not the diagnostic and its effects are to be manually reset (Latched), or can be either manually or automatically reset when and if the condition returns to normal (Nonlatched).

Active Modes [Inactive Modes]: States the modes or

periods of operation that the diagnostic is active in and, as necessary, those modes or periods that it is specifically

“not active” in as an exception to the active modes.The

inactive modes are enclosed in brackets, [ ]. Note that the modes used in this column are internal and not generally annunciated to any of the formal mode displays.

Criteria: Quantitatively defines the criteria used in generating the diagnostic and, if nonlatching, the criteria for auto reset.

Reset Level: Defines the lowest level of manual diagnostic reset command which can clear the diagnostic.

The manual diagnostic reset levels in order of priority are:

Local or Remote. For example, a diagnosticthat has a reset level of Remote, can be reset by either a remote diagnostic reset command or by a local diagnostic reset command.

AFD Diagnostics

Table 32. AFD diagnostics

Diagnostic Name and Source

AFD xA Temperature Sensor Warning

AFD 1A Voltage Transient Protection Loss

Affects Target Severity Persistence

None Info

None Info NonLatch All

NonLatch – timed reset

Active Modes [Inactive Modes] Criteria

All

Any of the 3 IGBT modules (one per phase) has an open or out of range temperature sensor

Circuitry for respective AFD “Panel Interlock Warning” was activated. For RTAE the panel interlock warning input circuitry of AFD1A, is used to monitor the state of the entire unit’s Surge Arresters, which is an array of 4 Metal Oxide Varistors intended to protect the entire unit. An open state of the circuit suggests at least one of the MOVs has opened and the transient suppression protection is thereby compromised. Although the unit is not shutdown from this warning diagnostic, it is highly recommended to replace the protection MOVs as soon as practical, in order to protect from further damage to the drives as a result of incoming line transients. Even though the diagnostic has an AFD 1A prefix, it applies to the entire unit

Reset Level

Local

RTAE-SVX001B-EN 73

Diagnostics

Table 32. AFD diagnostics (continued)

Diagnostic Name and Source

AFD xA 12-Pulse or Auto Transf High Temp

AFD xA A/D Calibration Error

AFD xA AHD Frequency Out of Range

AFD xA AHD Sync Signal Error

AFD xA Bump Failure

AFD xA Bus Over Voltage

AFD xA Bus Under Voltage

AFD xA Bus Voltage Ripple Too High

AFD xA Comm Loss: Main Processor

AFD xA Compressor Start Failure

AFD xA Current Sensor Self Test Failure

AFD xA Desaturation Detected

AFD xA DSP Board ID Error

AFD xA DSP Board Initialization Failure

AFD xA DSP Board Low Voltage Failure

AFD xA DSP Board Over Temp

Affects Target Severity Persistence

Circuit Immediate Latch All

Circuit

Circuit Info NonLatch Running

Circuit Immediate Latch Bump Mode

Circuit Immediate NonLatch Holding, Running

Circuit

Circuit Immediate Latch Running

Circuit

Circuit Immediate Latch Starting

Circuit Immediate Latch All

Circuit

Circuit Immediate NonLatch All

Circuit

Immediate (decel)

Latch Starting

NonLatch Holding, Running

Latch All

Latch Power Up

NonLatch All

[Inactive Modes] Criteria

Active Modes

The emergency stop input of the respective AFD was activated (open circuit has been detected). For RTAE units with the Input Harmonic Distortion Option installed, (TDD<5%), the respective drive’s Emergency Stop Fault input circuitry is used to monitor and trip on the series connected high limit thermostats of its associated 12-Pulse Autotransformer. For 200, 230 & 575 V units, the same input is used to monitor and trip on the series connected high limit thermostats of the Step-up/Step-down Voltage Autotransformer. Both circuit diagnostics will occur in the event of a high temperature trip of the Voltage Autotransformer. A tripped (open) state of the circuit, suggests an excessively high temperature of the respective transformer– Check the glycol cooling loop, the control panel ventilation or the Voltage Autotransformer panel ventilation fan as applicable.

Before each start, the A/D converters are calibrated against a known zero-voltage measurement. If the measurement reads more than 3% of full scale, the AFD asserts this A/D Calibration Error diagnostic.

The input frequency for the Active Harmonic Damping function of the respective AFD is outside the range 47 Hz < Fin < 63 Hz for more than one minute. This diagnostic is automatically reset when the input frequency returns to the range 47 Hz < Fin < 63 Hz.

The Active Harmonic Damping function of the respective AFD is experiencing noise or glitching of the input line sync signal continuously for one minute. This diagnostic is automatically reset when the condition clears.

During the compressor bump operation, the motor current exceeded Bump Cutout Current.

Bus overvoltage indicated the high bus voltage cut out has been exceeded while the AFD is in a non-stopped mode. The diagnostic will auto-reset when the bus voltage returns to its normal range for 1 minute.

The bus voltage dropped below the Low Bus Cutout threshold and there is not enough voltage to reliably operate the load. The diagnostic will auto-reset when the bus voltage returns to its normal range for 1 minute.

The DC power bus voltage’s ripple exceeds the drive’s capability to operate reliably.

The AFD detected a continual loss of communication with the main processor for greater than the Communications Loss Time (bound setpoint)

The compressor motor failed to start. This is most likely due to load torque (possibly transients) exceeding the torque capability.

Self testing indicates a current sensor is not working. Either it output is out of range or it significantly deviates from the expected current trajectory on self-test

Output Short circuit sufficient to drive IGBT transistor gate into desaturation has been detected

Occurs when frame size identification does not match the drive software. May occur upon DSP board replacement. Requires rebinding.

This results from address bus checking, data bus checking, line sync test, RAM test, each performed during the initialization

One of the AFD internal power supplies’ voltage has dropped below a reliable operation threshold

DSP board thermal switch indicates a temperature above 85°C.

Reset Level

Local

74 RTAE-SVX001B-EN

Table 32. AFD diagnostics (continued)

Diagnostics

Diagnostic Name and Source

AFD xA Estimated Junction Over Temp

AFD xA Excessive AHD Inhibit

AFD xA Gate Drive Board Over Temp

AFD xA Gate Drive Fault

AFD xA Gate Drive Low Voltage Failure

AFD xA Gate Drive Module Comm Loss

AFD xA Gate Kill Active

AFD xA General Failure

AFD xA Ground Fault

AFD xA IGBT Self Test Failure

AFD xA IMC 24V Low Voltage

AFD xA Instantaneous Current Overload

AFD xA Invalid Drive Command

AFD xA Inverter Heatsink Over Temp

AFD xA Load Inductor High Temperature

AFD xA Loss of AHD Sync Signal

AFD xA Low Rotor Flux Feedback

AFD xA Motor Current Overload

AFD xA Non-Volatile Memory Failure

AFD xA Output Phase Loss

AFD xA Over Speed Circuit Immediate Latch All

Affects Target Severity Persistence

Circuit

Circuit Info Latch All

Circuit

Circuit Immediate NonLatch Running

Circuit Immediate NonLatch All

Circuit

Circuit Immediate Latch All

Circuit

Circuit Immediate Latch Starting Self testing indicates one or more IGBT’s is not working. Local

Circuit

Circuit Immediate Latch Running

Circuit Info NonLatch All

Circuit

Circuit Info NonLatch Running

Circuit

Immediate (decel)

Latch Running

NonLatch All

Latch All

Latch All Drive fault other than those supported in this list. Local

Latch Running

NonLatch All

Latch Running

Latch Power Up

Latch Running

Active Modes [Inactive Modes] Criteria

The AFD has exceeded the allowed IGBT junction temperature. Suspect a problem with the Drive cooling system or if occurring during start acceleration, a damaged and/or locked rotor compressor

The Active Harmonic Damping function of the respective AFD is experiencing noise or glitching of the input line sync signal and has experienced 3 inhibits in one minute or 10 inhibits in one hour.

Thermal switch on gate-drive board indicates its temperature exceeds 99°C

Gate-drive board faults - One of the gate drive module power supplies is out of range

The 24Vdc gate drive supply to the gate drive module has dropped below a reliable operation threshold

Loss of communication between DSP module and Gate Drive Module

The respective drive’s gate-kill circuitry was activated (open circuit). For RTAE, the respective compressor’s High Pressure Cutout Switch is wired into this circuit, and will cause an immediate shutdown of the drive and compressor in the event of an HPC trip. A 2nd separate HPC diagnostic will occur in conjunction with this diagnostic – see details of the Main Processor Diagnostic “High Pressure Cutout” below

Measured ground current exceeds ground current sensitivity.

Loss of 24V on the IMC/IPC machine bus has been detected by the AFD

The instantaneous current of any of the output phases exceeded the drive capacity.

The AFD has reported that it had received a command for an invalid state transition from the main processor (MP). This diagnostic is not supported in 2.0 build

The IGBT heatsink temperature exceeded the cut out temperature.

Circuitry for respective AFD “Panel Interlock Fault” was activated. For RTAE units, the panel interlock fault input circuitry is used to sense the state of the high limit thermostat of its associated load inductors. A tripped (open) state of the circuit, suggest a high temperature of the load inductor – Check the glycol cooling loop and the control panel ventilation

The Active Harmonic Damping function of the respective AFD has received no valid input line sync signals for 1 minute

The estimated rotor flux dropped below the minimum threshold

Compressor Motor Overload “Time to Trip” vs Current curve exceeded

NV Memory does not pass CRC checks during initialization. This fault will normally occur when firmware is upgraded, and can be ignored and reset in that circumstance

Drive sensed that an output phase is missing. Output phase loss is defined as greater than 15% output current imbalance for more than 5.0 seconds.

The compressor motor’s speed either exceeded Absolute Maximum Speed, or the drive has lost control.

Reset Level

Local

RTAE-SVX001B-EN 75

Diagnostics

Table 32. AFD diagnostics (continued)

Diagnostic Name and Source

AFD xA Rectifier Heatsink Over Temp

AFD xA Watchdog Timer Overflow

Affects Target Severity Persistence

Circuit

Circuit Immediate Latch All

Immediate (decel)

NonLatch All

Main Processor Diagnostics

Table 33. Main processor diagnostics

Diagnostic Name

BAS Communication Lost

BAS Failed to Establish Communication

Check Clock Chiller Info Latch All

Condenser Fan Inverter Fault Ckt1

Condenser Fan Inverter Fault Ckt2

Condenser Rfgt Pressure Transducer Ckt1

Condenser Rfgt Pressure Transducer Ckt2

Discharge Rfgt Temp Sensor – Cprsr1A

Discharge Rfgt Temp Sensor – Cprsr2A

Drive Cooling Supply Temp Sensor – Ckt1

Affects Target Severity Persistence

None

None Info NonLatch All

Circuit Immediate Latch All Bad Sensor or LLID Remote

Circuit Normal Latch All Bad Sensor or LLID. Remote

Special Action

NonLatch All

NonLatch At power-up

Active Modes [Inactive Modes] Criteria

The diode heatsink temperature exceeded the cut out temperature.

Watchdog timer overflowed. Requires power cycle to restore operation.

The BAS was setup as “installed” at the MP and the Lontalk LCIC lost communications with the BAS for 15 contiguous minutes after it had been established. Refer to Section on Setpoint Arbitration to determine how setpoints and operating modes may be affected by the comm loss. The chiller follows the value of the Tracer Default Run Command which can be previously written by Tracer and stored nonvolatilely by the MP (either use local or shutdown). Note that this diagnostic is never operational for BACnet Communication interface (BCI-C) and only operational with a LonTalk Communication interface (LCI-C) if so configured by the BAS or Tracer system.

The BAS was setup as “installed” and the BAS did not communicate with the Lontalk LCIC within 15 minutes after chiller controls power-up. Refer to Section on Setpoint Arbitration to determine how setpoints and operating modes may be effected. Note that this diagnostic is never operational for BACnet Communication interface (BCI-C) and only operational with a LonTalk Communication interface (LCI-C) if so configured by the BAS or Tracer system.

The real time clock had detected loss of its oscillator at some time in the past. Check / replace battery? This diagnostic can be effectively cleared only by writing a new value to the chiller’s time clock using the TU or DynaView’s “set chiller time” functions.

A fault signal has been detected from at least one of the Variable Speed Inverter Drive Condenser Fans of Circuit 1 (including the right hand fan of the Shared Fan Module if present). No action is taken.

A fault signal has been detected from at least one of the Variable Speed Inverter Drive Condenser Fans of Circuit 2 (including the left hand fan of the Shared Fan Module if present). No action is taken.

Reset Level

Local

Reset Level

Remote

76 RTAE-SVX001B-EN

Table 33. Main processor diagnostics (continued)

Diagnostics

Diagnostic Name

Drive Cooling Supply Temp Sensor – Ckt2

Emergency Stop

Evap Rfgt Pool Temp Sensor – Ckt1

Evap Rfgt Pool Temp Sensor – Ckt2

Evap Rfgt Pool Temp Sensor Error – Ckt1

Evap Rfgt Pool Temp Sensor Error – Ckt2

Evap Spillover Liquid Level Sensor – Ckt1

Evap Spillover Liquid Level Sensor – Ckt2

Evap Water Flow (Entering Water Temp)

Evaporator Approach Error – Ckt1

Evaporator Approach Error – Ckt2

Evaporator Entering Water Temp Sensor

Evaporator Leaving Water Temp Sensor

Evaporator Water Flow Lost

Affects Target Severity Persistence

Circuit Normal Latch All Bad Sensor or LLID. Remote

Chiller Immediate Latch All

Circuit and Chiller

Circuit

Circuit Normal Latch All Bad Sensor or LLID Remote

None Info NonLatch

Circuit Immediate Latch

Chiller Normal Latch All

Chiller Normal Latch All Bad Sensor or LLID Remote

Chiller Immediate NonLatch [All Stop modes]

Special Action and Info

Info and Special Action

NonLatch All

Latch

[Inactive Modes] Criteria

EMERGENCY STOP input is open. An external interlock has tripped. Time to trip from input opening to unit stop shall be 0.1 to 1.0 seconds.

Bad Sensor or LLID. Note: The Evap Pool Temp Sensors are used for evaporator freeze protection (running and nonrunning).

The evaporator refrigerant pool temperature sensor is indicating a temperature significantly warmer than the

Ckt Energized [Ckt Not Energized

Any Ckt Energized [No Ckts Energized]

Respective circuit running

evaporator entering water temperature (by more than 7.2°F for 5 continuous min excluding ckt nonoperation and a 2 min ignore time relative to ckt startup). While this diagnostic is active, it will invalidate the evaporator pool temperature sensor. Freeze protection functions (i.e. freeze diagnostics and Evap Pump Override) will default to the respective evaporator pressure transducer and its calculated saturation temperature.

The evaporator refrigerant pool temperature sensor is indicating a temperature significantly warmer than the evaporator entering water temperature (by more than 7.2°F for 5 continuous min excluding ckt nonoperation and a 2 min ignore time relative to ckt startup). While this diagnostic is active, it will invalidate the evaporator pool temperature sensor. Freeze protection functions (i.e. freeze diagnostics and Evap Pump Override) will default to the respective evaporator pressure transducer and its calculated saturation temperature.

The entering evaporator water temp fell below the leaving evaporator water temp by more than 2°F for 180°F-sec, minimum trip time 30 seconds. It can warn of improper flow direction through the evaporator, misbound water temperature sensors, improper sensor installation, partially failed sensors, or other system problems. Note that either entering or leaving water temp sensor or the water system could be at fault.

The Evaporator approach temperature for the respective circuit (ELWT – Evap Sat Temp Ckt 1) is negative by more than 10°F for 1 minute continuously while the circuit / compressor is operating. Either the Evap Leaving Water Temp sensor, or Evap Suction Rfgt Pressure Transducer Ckt 1 is in error.

The Evaporator approach temperature for the respective circuit (ELWT – Evap Sat Temp Ckt 2) is negative by more than 10°F for 1 minute continuously while the circuit / compressor is operating. Either the Evap Leaving Water Temp sensor, or Evap Suction Rfgt Pressure Transducer Ckt 2 is in error.

Bad Sensor or LLID. Note: Entering Water Temp Sensor is used in EXV pressure control as well as ice making so it must cause a unit shutdown even if ice or CHW reset is not installed.

a. The Evaporator water flow switch input was open for more than 6 contiguous seconds (or 15 seconds for thermal dispersion type flow switch). b. This diagnostic does not deenergize the evap pump output. c. 6 seconds of contiguous flow shall clear this diagnostic.

Reset Level

Local

Remote

Local

Remote

Active Modes

RTAE-SVX001B-EN 77

Diagnostics

Table 33. Main processor diagnostics (continued)

Diagnostic Name

Evaporator Water Flow Overdue

Excessive Condenser Pressure – Ckt1

Excessive Condenser Pressure – Ckt2

External Chilled/Hot Water Setpoint

External Demand Limit Setpoint

Failure to Arm or Hold - AFD 1ACircuit Info Nonlatch All

Failure to Arm or Hold - AFD 2ACircuit Info Nonlatch All

Failure to Arm or Start - AFD 1ACircuit Immediate Latch All

Failure to Arm or Start - AFD 2ACircuit Immediate Latch All

High Differential Rfgt Pressure - Ckt1

High Differential Rfgt Pressure - Ckt2

High Discharge Temperature – Cprsr1A

High Discharge Temperature – Cprsr2A

Affects Target Severity Persistence

Chiller Normal NonLatch

Circuit Immediate Latch All

None Info Latch All

Circuit Normal Latch

Circuit Immediate Latch

[Inactive Modes] Criteria

Estab. Evap. Water Flow on going from STOP to AUTO or Evap Pump Override.

Cprsr Energized [Service/Op Pumpdown]

All [compressor run unload or compressor not running]

Active Modes

Evaporator water flow was not proven within 20 minutes of the Evaporator water pump relay being energized in normal “Stop” to “Auto” transition. If the pump is overridden to “On” for certain diagnostics, the delay on diagnostic callout shall be only 255 seconds. The pump command status will not be affected by this diagnostic in either case.

The condenser pressure transducer of this circuit has detected a condensing pressure in excess of the design high side pressure as limited by the particular compressor type.

a. Function Not “Enabled”: no diagnostics. b. “Enabled “: OutOf-Range Low or Hi or bad LLID, set diagnostic, default CWS to next level of priority (e.g. Front Panel SetPoint).

a. Not “Enabled”: no diagnostics. b. “Enabled “: Out-Of-Range Low or Hi or bad LLID, set diagnostic, default CLS to next level of priority (e.g. Front Panel SetPoint.

AFD 1A (controlling Compressor 1A) failed to respond in an appropriate time with its status of Armed to Hold or Hold within the allotted time of 1 minute of the sent command. (Arm to Hold command sent; armed to Hold status received; Hold command sent; Hold status received)

AFD 2A (controlling Compressor 2A) failed to respond in an appropriate time with its status of Armed to Hold or Hold within the allotted time of 1 minute of the sent command. (Arm to Hold command sent; armed to Hold status received; Hold command sent; Hold status received)

AFD 1A (controlling Compressor 1A) failed to arm or start within the allotted time of 1 minute. (Arm to Start command sent; armed to Start status received; Start command sent; Started status received)

AFD 2A (controlling Compressor 2A) failed to arm or start within the allotted time of 1 minute. (Arm to Start command sent; armed to Start status received; Start command sent; Started status received)

The differential pressure for the respective circuit was above 275 Psid (1890 kPa) for 2 consecutive samples 5 seconds apart.

The differential pressure for the respective circuit was above 275 Psid (1890 kPa) for 2 consecutive samples 5 seconds apart

The compressor discharge temperature exceeded 200°F (without oil cooler) or 230ºF (with oil cooler). This diagnostic will be suppressed during Stopping mode or after the compressor has stopped. Note: As part of the Compressor High Temperature Limit Mode (aka Minimum Capacity Limit), the compressor shall be forced loaded as the filtered discharge temperature reaches 190ºF (without oil coolers), or 220ºF (with oil coolers).

The compressor discharge temperature exceeded 200°F (without oil cooler) or 230ºF (with oil cooler). This diagnostic will be suppressed during Stopping Mode or after the compressor has stopped. Note: As part of the Compressor High Temperature Limit Mode (aka Minimum Capacity Limit), the compressor shall be forced loaded as the filtered discharge temperature reaches 190ºF (without oil coolers), or 220ºF (with oil coolers).

Reset Level

Remote

Local

Remote

78 RTAE-SVX001B-EN

Table 33. Main processor diagnostics (continued)

Diagnostics

Diagnostic Name

High Evaporator Refrigerant Pressure

High Evaporator Water Temperature

High Motor Winding Temperature Cprsr1A

High Motor Winding Temperature Cprsr2A

High Pressure Cutout Cprsr1A

High Pressure Cutout Cprsr2A

High Refrigerant Pressure Ratio – Ckt1

High Refrigerant Pressure Ratio – Ckt2

Interrupt Failure – AFD1A

Affects Target Severity Persistence

Chiller Immediate NonLatch All

Chiller

Circuit Immediate Latch All

Circuit Immediate Latch Cprsr Energized

Circuit

Info and Special Action

Immediate Shutdown and Special Action

NonLatch

Latch

[Inactive Modes] Criteria

Only effective if either 1)Evap Wtr Flow Overdue, 2)Evap Wtr Flow Loss, or

3)Low Evap Rfgt Temp,-Unit Off, diagnostic is active.

AFD intended to be OFF

Active Modes

The evaporator refrigerant pressure of either circuit has risen above 190 psig. The evaporator water pump relay will be deenergized to stop the pump regardless of why the pump is running. The diagnostic will auto reset and the pump will return to normal control when all of the evaporator pressures fall below 185 psig. The primary purpose is to stop the evaporator water pump and its associated pump heat from causing refrigerant side pressures, close to the evaporator relief valve setting, when the chiller is not running, such as could occur with Evap Water Flow Overdue or Evaporator Water Flow Loss Diagnostics.

Either the leaving or the entering water temperature exceeded the high evap water temp limit (TV service menu settable – default 105°F) for 15 continuous seconds. The evaporator water pump relay will be de-energized to stop the pump but only if it is running due one of the diagnostics listed on the left . The diagnostic will auto reset and the pump will return to normal control when both the entering and leaving temperatures fall 5°F below the trip setting. The primary purpose is to stop the evaporator water pump and its associated pump heat from causing excessive waterside temperatures and waterside pressures when the chiller is not running but the evap pump is on due to either Evap Water Flow Overdue, Evaporator Water Flow Loss, or Low Evap Temp – Unit Off Diagnostics. This diagnostic will not auto clear solely due to the clearing of the enabling diagnostic.

Any of the compressor’s motor winding temperature sensors is seen to be beyond the windings rated temperature of 265°F (129.4°C)

Any of the respective compressor’s motor winding temperature sensors is seen to be beyond the windings rated temperature of 265°F (129.4°C)

A high pressure cutout was detected by AFD 1A Gate Kill Input ; trip at 315 ± 5 PSIG.

A high pressure cutout was detected by AFD 2A Gate Kill Input ; trip at 315 ± 5 PSIG.

The pressure ratio for the respective circuit exceeded 12.3 for 1 contiguous minute while running in any mode. The pressure ratio is defined as Pcond (abs)/Pevap(abs).

Respective AFD is reporting that it is still running the compressor when the MP has commanded the drive/ compressor to be Off. Detection time shall be 10 seconds minimum and 15 seconds maximum. On detection and until the controller is manually reset: this diagnostic shall be active and the alarm relay shall be energized, the Evap Pump Output will be energized, the effected compressor will be continually commanded off, and be unloaded, while a normal stop shall be commanded to all other compressors. For as long as compressor operation continues, the MP shall continue liquid level, oil return, and fan control on the circuit effected.

Reset Level

Remote

Local

Remote

Local

RTAE-SVX001B-EN 79

Diagnostics

Table 33. Main processor diagnostics (continued)

Diagnostic Name

Interrupt Failure – AFD2A

LCI-C Software Mismatch: Use BAS Tool

Loss of Oil (Running) Cprsr1A

Loss of Oil (Running) Cprsr2A

Loss of Oil (Stopped) – Cprsr1A

Loss of Oil (Stopped) – Cprsr2A

Low Differential Rfgt Pressure Ckt1

Low Differential Rfgt Pressure Ckt2

Low Discharge Superheat – Ckt1

Low Discharge Superheat – Ckt2

Low Evaporator Rfgt Pressure Ckt1

Affects Target Severity Persistence

Immediate

Circuit

Chiller Info Nonlatch All

Circuit Immediate Latch

Circuit

Circuit Immediate Latch Cprsr Energized

Circuit Normal Latch

Circuit Immediate Latch

Shutdown and Special Action

Immediate Shutdown and Special Action

Latch

[Inactive Modes] Criteria

AFD intended to be OFF

Starter Contactor Energized

Compressor Prestart [all other modes]

Any Running Mode

Cprsr Prestart and Cprsr Energized

Active Modes

Respective AFD is reporting that it is still running the compressor when the MP has commanded the drive/ compressor to be Off. Detection time shall be 10 seconds minimum and 15 seconds maximum. On detection and until the controller is manually reset: this diagnostic shall be active and the alarm relay shall be energized, the Evap Pump Output will be energized, the effected compressor will be continually commanded off, and be unloaded, while a normal stop shall be commanded to all other compressors. For as long as compressor operation continues, the MP shall continue liquid level, oil return, and fan control on the circuit effected.

The neuron software in the LCI-C module does not match the chiller type. Download the proper software into the LCI-C neuron. To do this, use the Rover service tool, or a LonTalk tool capable of downloading software to a Neuron 3150

In running modes, Oil Loss Level Sensor detects lack of oil in the oil sump feeding the compressor (distinguishing a liquid flow from a vapor flow).

Oil Loss Level Sensor detects a lack of oil in the oil sump feeding the compressor for 90 seconds after EXV preposition is completed on an attempted circuit start. Note: Compressor start is delayed pending oil detection during that time, but not allowed once the diagnostic occurs.

The system differential pressure (Pc-Pe) for the respective circuit was below 25 psid (240.5 kPa) or the pressure ratio (Pc/ Pe) was less than 1.1 while the compressor is running for a period of time dependent on the deficit (15 sec ignore time from circuit start). Refer to the Oil Flow Protection specification for the time to trip function.

While Running Normally, the Discharge Superheat was less than 9 degrees F for more than 4878 degree F seconds. At circuit startup, the Discharge Superheat will be ignored for 5 minutes.

a. The Evap Refrig Pressure dropped below 10 Psia just prior to compressor start (after EXV preposition). b. During Early Startup Period: the Evap Refrig Pressure fell below a pressure equal to Condenser Pressure ÷ 8 but as limited to not less than 6 or greater than 10 psia. c. After Early Startup Period expires: The Evap Refrig Pressure fell below 16 Psia for 30 seconds or below 10 psia for 5 seconds. (Note: the Early Startup Period for RTAE it is between 1 and 5 min as an inverse function of the Cond Temp measured at time of circuit startup).

®

.

Reset Level

Local

Remote

Local

Remote

Local

80 RTAE-SVX001B-EN

Table 33. Main processor diagnostics (continued)

Diagnostics

Diagnostic Name

Low Evaporator Rfgt Pressure Ckt2

Low Evaporator Rfgt Temperature Ckt1

Low Evaporator Rfgt Temperature Ckt2

Low Evaporator Temp (Unit Off) – Ckt1

Low Evaporator Temp (Unit Off) – Ckt2

Affects Target Severity Persistence

Circuit Immediate Latch

Evap Pump

Info and Special Action

Special Action

NonLatch

Active Modes [Inactive Modes] Criteria

a. The Evap Refrig Pressure dropped below 10 Psia just prior to compressor start (after EXV preposition). b. During Early Startup Period: the Evap Refrig Pressure fell

Cprsr Prestart and Cprsr Energized

All Ckt Running Modes [Service Pumpdown]

Unit in Stop Mode, or in Auto Mode and No Ckt's Energzd [Any Ckt Energzd]

below a pressure equal to Condenser Pressure ÷ 8 but as limited to not less than 6 or greater than 10 psia. c. After Early Startup Period expires: The Evap Refrig Pressure fell below 16 Psia for 30 seconds or below 10 psia for 5 seconds. (Note: the Early Startup Period for RTAE it is between 1 and 5 min as an inverse function of the Cond Temp measured at time of circuit startup).

The warmer of either the Evaporator Refrigerant Pool Temperature or the Evaporator Saturated Temperature for the respective circuit, dropped below the Low Refrigerant Temperature Cutout Setpoint for 2250F-sec (12F-sec/sec max rate for early circuit startup period) while the circuit was running. The minimum LERTC setpoint is -5F the point at which oil separates from the refrigerant. The integral is held nonvolatily though power down, is continuously calculated, and can decay or build during the circuit’s off cycle as conditions warrant.

The warmer of either the Evaporator Refrigerant Pool Temperature or the Evaporator Saturated Temperature for the respective circuit, dropped below the Low Refrigerant Temperature Cutout Setpoint for 2250°F-sec (12°F-sec/sec max rate for early circuit startup period) while the circuit was running. The minimum LERTC setpoint is -5°F the point at which oil separates from the refrigerant. The integral is held nonvolatily though power down, is continuously calculated, and can decay or build during the circuit’s off cycle as conditions warrant.

The respective circuit’s “Chiller Off Cycle Freeze Protection Integral” was seen to be higher than ½ of its trip value while the chiller is in the Stop mode, or in Auto mode with no compressors running, for one minute and more. The COCFP integral is increased if the Average of the Evap Water Temperature and the Evap Refrigerant Pool Temp is below the value of the Low Evap Rfgt Temp Cutout + 4°F. Energize Evap Water Pump and Off-Cycle Freeze Avoidance Request Relay until diagnostic auto resets, then return to normal evap pump control and de-energize the Freeze Avoidance Request. Automatic reset occurs when the respective Evap Rfgt Pool Temp rises 2°F (1.1°C) above the LERTC cutout setting and the COCFP Integral is less than 1/3 of its trip value. This diagnostic even while active, does not prevent operation of either circuit. (At each circuit shutdown, the COCFP integral is initialized to the LERTC integral).

The respective circuit’s “Chiller Off Cycle Freeze Protection Integral” was seen to be higher than ½ of its trip value while the chiller is in the Stop mode, or in Auto mode with no compressors running, for one minute and more. The COCFP integral is increased if the Average of the Evap Water Temperatures and the Evap Refrigerant Pool Temp is below the value of the Low Evap Rfgt Temp Cutout + 4°F. Energize Evap Water Pump and Off-Cycle Freeze Avoidance Request Relay until diagnostic auto resets, then return to normal evap pump control and de-energize the Freeze Avoidance Request. Automatic reset occurs when the respective Evap Rfgt Pool Temp rises 2°F (1.1°C) above the LERTC cutout setting AND the COCFP Integral is less than 1/3 of its trip value. This diagnostic even while active, does not prevent operation of either circuit. (At each circuit shutdown, the COCFP integral is initialized to the LERTC integral).

Reset Level

Local

Remote

RTAE-SVX001B-EN 81

Diagnostics

Table 33. Main processor diagnostics (continued)

Diagnostic Name

Low Evaporator Water Temp (Unit Off)

Low Evaporator Water Temp: Unit On

Low Oil Flow Cprsr2A

Low Oil Flow Cpsr 1A

Low Oil Return or AFD Cooling – Ckt1

Low Oil Return or AFD Cooling – Ckt2

Motor Winding Temp Sensor Cprsr1A

Motor Winding Temp SensorCprsr2A

MP Application Memory CRC Error

MP: Could not Store Starts and Hours

MP: Invalid Configuration

MP: NonVolatile Memory Reformat

Affects Target Severity Persistence

Evap Pump and Freeze Avoidance Request Relay

Chiller

Circuit Immediate Latch

Circuit Info NonLatch

Circuit Info or None Latch All

Chiller Immediate Latch All Modes Memory error criteria TBD Remote

None Info Latch All

None Immediate Latch All

None Info Latch All

Info and Special Action

Immediate Shutdown and Special Action

NonLatch

[Inactive Modes] Criteria

Either the entering or leaving evaporator water temp fell below

Unit in Stop Mode, or in Auto Mode and No Ckt(s) Energzd [Any Ckt Energzd]

Any Ckt[s] Energzd [No Ckt(s) Energzd]

Cprsr Energized and Delta P above 15 Psid

All Ckt Running Modes

the leaving water temp cutout setting for 30°F-seconds while the Chiller is in the Stop mode, or in Auto mode with no compressors running. Energize Freeze Avoidance Request Relay and Evap Water Pump Relay until diagnostic auto resets, then de-energize the Freeze Avoidance Request Relay and return to normal evap pump control. Automatic reset occurs when both temps rise 2°F (1.1°C) above the cutout setting for 5 minutes, or either circuit starts. This diagnostic even while active, does not prevent operation of either circuit.

The evaporator entering or leaving water temp fell below the cutout setpoint for 30°F-seconds while the compressor was running. Automatic reset occurs when both of the temperature rises 2°F (1.1°C) above the cutout setting for 2 minutes. This diagnostic shall not de-energize the Evaporator Water Pump Output.

The oil pressure transducer for this compressor was indicating an unacceptable oil pressure drop as a % of the available oil pressure to move oil, suggesting significantly reduced oil flow to the compressor. Possible root causes include oil line service valve closed or restricted, dirty or restricted oil filter, or compressor oil line kepner valve malfunction.

The evaporator’s spillover tank refrigerant liquid level, which feeds the oil return and drive cooling heat exchanger, is seen to be less than 90% of its min level for 20 continuous minutes – reset when level gets to 88% of min level. The occurrence of this warning in conjunction with the “Loss of Oil (Running)” or any of the” AFD Over Temp” shutdown diagnostics, suggests either EXV problems or loss of charge is a contributing factor.

The evaporator’s spillover tank refrigerant liquid level, which feeds the oil return and drive cooling heat exchanger, is seen to be less than 90% of its min level for 20 continuous minutes – reset when level gets to 88% of min level. The occurrence of this warning in conjunction with the “Loss of Oil (Running)” or any of the” AFD Over Temperature” shutdown diagnostics, suggests either EXV problems or loss of charge is a contributing factor.

Both of the motor winding temperature sensors are seen to be out of their normal range. (Severity is adjustable via TU Service Tool – default is Info)

MP has determined there was an error with the previous power down store. Starts and Hours may have been lost for the last 24 hours.

MP has an invalid configuration based on the current software installed.

MP has determined there was an error in a sector of the NonVolatile memory and it was reformatted. Check settings.

Reset Level

Remote

Local

Remote

Active Modes

82 RTAE-SVX001B-EN

Table 33. Main processor diagnostics (continued)

Diagnostics

Diagnostic Name

MP: Reset Has Occurred

No Differential Rfgt Pressure – Ckt1

No Differential Rfgt Pressure – Ckt2

Oil Analysis Recommended – Ckt1

Oil Analysis Recommended – Ckt2

Oil Filter Change Recommended – Cprsr1A

Oil Filter Change Recommended – Cprsr2A

Oil Flow Protection Fault – Ckt 1

Oil Flow Protection Fault – Ckt2

Oil Pressure Transducer – Cprsr1A

Oil Pressure Transducer – Cprsr2A

Outdoor Air Temperature Sensor

Pumpdown Terminated Ckt1

Pumpdown Terminated Ckt2

Software Error 1001: Call Trane Service

Affects Target Severity Persistence

None Info NonLatch All

Circuit Immediate Latch

Circuit Info Latch

Circuit Immediate Latch

Circuit Immediate Latch All Bad Sensor or LLID Remote

Chiller

Circuit Info NonLatch

All functions

Normal Shutdown;

Immediate Latch All

Latch All

[Inactive Modes] Criteria

The main processor has successfully come out of a reset and built its application. A reset may have been due to a power up, or a power loss of a minimum or longer duration to cause an MP power down reset, or when installing new software or defining a new configuration. This diagnostic is immediately and automatically cleared and thus can only be seen in the Historic Diagnostic List in TU.

Compressor running on Circuit

“Service Messages” enabled

Starter Contactor Energized [all Stop modes]

Service Pumpdown

The system differential pressure was below 7.7 Psid (53 kPa) for 6 seconds after the 11 seconds ignore time relative to cprsr/ circuit startup had expired.

Diagnostic occurs when accumulated circuit operating hours since last initialized exceeds 2000 hours. Diagnostic can be manually cleared but will reoccur every month (720 hours on real time clock) as long as accumulator is not re-initialized.

Diagnostic occurs only when “service messages” are enabled and when average oil pressure drop exceeds 18%. Diagnostic can be manually cleared but will reoccur every month (720 hours on real time clock) as long as average pressure drop does not fall below 16%.

The Intermediate Oil Pressure Transducer for this cprsr is reading a pressure either above its respective circuit’s Condenser Pressure by 15 Psia or more, or below its respective Suction Pressure 10 Psia or more for 30 seconds continuously.

Bad Sensor or LLID. If this diagnostic occurs, operational pumpdown will be performed regardless of the last valid temperature.

Service Pumpdown cycle for this circuit was terminated abnormally due to excessive time.(RTAE max Service Pumpdown = 4 min).

Service Pumpdown cycle for this circuit was terminated abnormally due to excessive. (RTAE max Service Pumpdown = 4 min).

A high level software watchdog has detected a condition in which there was a continuous 1 minute period of compressor operation, with neither Evaporator water flow nor a” contactor interrupt failure” diagnostic active. The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering.

Reset Level

Remote

Local

Remote

Local

Active Modes

RTAE-SVX001B-EN 83

Diagnostics

Table 33. Main processor diagnostics (continued)

Diagnostic Name

Software Error 1002: Call Trane Service

Software Error 1003: Call Trane Service

Starts or Hours Modified – Cprsr1A

Starts or Hours Modified – Cprsr2A

Suction Rfgt Pressure Transducer – Cprsr1A

Suction Rfgt Pressure Transducer – Cprsr2A

Unexpected Shutdown – AFD1A

Unexpected Shutdown – AFD2A

Very Low Evaporator Rfgt Pressure – Ckt1

Very Low Evaporator Rfgt Pressure – Ckt2

Affects Target Severity Persistence

All functions

None Info NonLatch All

Circuit Immediate Latch All Bad Sensor or LLID Remote

Circuit Normal Nonlatch

Chiller Immediate Latch All

Immediate Latch All

[Inactive Modes] Criteria

Reported if state chart misalignment in stopped or inactive state occurred while a compressor was seen to be operating and this condition lasted for at least 1 minute (cmprsr operation due to Service Pumpdown or with Contactor Interrupt Failure diagnostic is excluded). The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering.

Reported if state chart misalignment occurred inferred from either Capacity Control, Circuit, or Compressor State Machines remaining in the Stopping state for more than 3 minutes. The presence of this software error message suggests an internal software problem has been detected. The events that led up to this failure, if known, should be recorded and transmitted to Trane Controls Engineering.

The current value for the cumulative starts and or hours for the given compressor have been modified by a write override from TU.

All Cprsr Running modes, Starting, Running and Preparing to Shutdown

The respective AFD status reported back that it is stopped when the MP thinks it should be running and no AFD shutdown diagnostic exists. This diagnostic will be logged in the active buffer and then automatically cleared. This diagnostic could be caused by intermittent communication problems from the AFD to the MP, or due to misbinding.

The respective circuit’s evaporator pressure dropped below 80% of the current Low Evap Refrig Press Cutout setting (see above) or 8 psia, whichever is less, regardless of the running state of the circuit’s compressor. Note: Unlike previous products, even if the circuit associated with the suction pressure transducer is locked out, it will not defeat the protection afforded by this diagnostic.

Reset Level

Local

NA

Remote

Local

Active Modes

84 RTAE-SVX001B-EN

Communication Diagnostics

Notes:

• The following communication loss diagnostics will not

occur unless that input or output is required to be present by the particular configuration and installed options for the chiller.

• Communication diagnostics are named by the Functional Name of the input or output that is no longer being heard from by the Main Processor. Many LLIDs, such as the Quad Relay LLID, have more than

Table 34. Communication diagnostics

Diagnostics

one functional output associated with it. A comm loss with such a multiple function board, will generate multiple diagnostics. Refer to the Chiller's wiring diagrams to relate the occurrence of multiple communication diagnostics back to the physical LLID boards that they have been assigned to (bound).

Diagnostic Name

Comm Loss: AFD 1A Circuit Immediate NonLatch All

Comm Loss: AFD 2A Circuit Immediate NonLatch All

Comm Loss: Chiller % Capacity Output

Comm Loss: Cond Fan Enable, Shared Ckt1&2

Comm Loss: Cond Rfgt Pressure, Ckt1

Comm Loss: Cond Rfgt Pressure, Ckt2

Comm Loss: Condenser Fan Enable, Ckt1

Comm Loss: Condenser Fan Enable, Ckt2

Comm Loss: Discharge Temperature, Ckt1

Comm Loss: Discharge Temperature, Ckt2

Comm Loss: Drive Cooling BP Valve, Ckt1

Comm Loss: Drive Cooling BP Valve, Ckt2

Comm Loss: Drive Cooling IL Valve, Ckt1

Comm Loss: Drive Cooling IL Valve, Ckt2

Comm Loss: Drive Cooling Sply Temp, Ckt1

Comm Loss: Drive Cooling Sply Temp, Ckt2

Affects Target Severity Persistence

None Info Latch All

Circuit Immediate Latch All

Circuit Normal Latch All

Circuit Norma Latch All

[Inactive Modes] Criteria

Active Modes

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. This is an info warning, as it is conceivable that the circuit may run without the center shared fan deck working if there are many other coils/fans on the circuits.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. While this diagnostic is active, the associated Drive Cooling ByPass Valve shall be commanded fully closed.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. While this diagnostic is active, the associated Drive Cooling ByPass Valve shall be commanded fully closed

Reset Level

Remote

RTAE-SVX001B-EN 85

Diagnostics

Table 34. Communication diagnostics (continued)

Diagnostic Name

Comm Loss: Emergency Stop

Comm Loss: Evap Rfgt Pool Temp, Ckt1

Comm Loss: Evap Rfgt Pool Temp, Ckt2

Comm Loss: Evaporator Entering Water Temperature

Comm Loss: Evaporator Leaving Water Temperature

Comm Loss: Evaporator Rfgt Liquid Level, Ckt1

Comm Loss: Evaporator Rfgt Liquid Level, Ckt2

Comm Loss: Evaporator Water Flow Switch

Comm Loss: Evaporator Water Pump Relay

Comm Loss: Expansion Valve, Ckt1

Comm Loss: Expansion Valve, Ckt2

Comm Loss: Ext Noise Reduction Command

Comm Loss: External Auto/Stop

Comm Loss: External Chilled/Hot Water Setpoint

Comm Loss: External Ckt Lockout, Ckt1

Comm Loss: External Ckt Lockout, Ckt2

Comm Loss: External Demand Limit Setpoint

Affects Target Severity Persistence

Chiller Normal Latch All

Circuit and Chiller

Chiller Normal Latch All

Circuit Normal Latch All

Chiller Immediate Latch All

Chiller Normal Latch All

Circuit Normal Latch All

None Info Latch All

Chiller Normal Latch All

External Chilled Water Setpoint

None Info Latch All

External Current Limit setpoint

Special Action and Info

Special Action

Latch All

[Inactive Modes] Criteria

Active Modes

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period Note: The Evap Pool Temp Sensors are used for both On and Off -cycle freeze protection. Substitute Suction Pressure to Temperature conversion for freeze protection functions.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Note: Entering Water Temp Sensor is used in EXV pressure control as well as ice making & CHW reset, so it must cause a unit shutdown even if Ice or CHW reset is not installed.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Chiller shall discontinue use of the External Chilled Water Setpoint source and revert to the next higher priority for setpoint arbitration

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. MP will hold the last lockout state (enabled or disabled) that was in effect at the time of comm loss.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. MP will hold the last lockout state (enabled or disabled) that was in effect at the time of comm loss

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Chiller shall discontinue use of the External Current limit setpoint and revert to the next higher priority for Current Limit setpoint arbitration

Reset Level

Remote

86 RTAE-SVX001B-EN

Table 34. Communication diagnostics (continued)

Diagnostics

Diagnostic Name

Comm Loss: External Ice Building Command

Comm Loss: Fan Inverter Fault, Ckt1

Comm Loss: Fan Inverter Fault, Ckt2

Comm Loss: Fan Inverter Speed Cmd, Ckt1

Comm Loss: Fan Inverter Speed Cmd, Ckt2

Comm Loss: Fan Inverter Speed Cmd, Shared Ckt1&2

Comm Loss: Heat/ Cool Switch

Comm Loss: IceMaking Status

Comm Loss: Local BAS Interface

Comm Loss: Offcycle Freeze Protection Relay

Comm Loss: Oil Loss Level Sensor Input – Ckt1

Comm Loss: Oil Loss Level Sensor Input – Ckt2

Comm Loss: Oil Pressure, Cprsr1A

Comm Loss: Oil Pressure, Cprsr2A

Comm Loss: Op Status Programmable Relays

Comm Loss: Outdoor Air Temperature

Comm Loss: Suction Rfgt Pressure, Ckt1

Comm Loss: Suction Rfgt Pressure, Ckt2

Affects Target Severity Persistence

Ice Making Mode

None Info Latch All

Circuit Normal Latch All

None Info Latch All

Heat Mode

IceMachine

Chiller Info NonLatch All

Chiller Info Latch All

Circuit Normal Latch All

Circuit Immediate Latch All

None Info Latch All

Chiller

Circuit Immediate Latch

Special Action

Normal Shutdown

Latch All

[Inactive Modes] Criteria

All [Ckt/Cprsr lock out]

Active Modes

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Chiller shall revert to normal (non-ice building) mode regardless of last state.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. This is an info warning, as it is conceivable that the circuit may run without the center shared fan deck working if there are many other coils/fans on the circuits.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Chiller shall revert to normal (non-ice building) mode regardless of last state.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Use last valid BAS setpoints. Diagnostic is cleared when successful communication is established with the LonTalk LLID (LCIC) or BACnet LLID (BCIC).

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period.

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. For RTAE if this diagnostic occurs, operational pumpdown will be performed regardless of the last valid temperature

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Note: This diagnostic is replaced by diagnostic 5FB below with Rev 15.0

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period. Note: This diagnostic is replaced by diagnostic 5FD below with Rev 15.0

Reset Level

Remote

RTAE-SVX001B-EN 87

Diagnostics

Table 34. Communication diagnostics (continued)

Diagnostic Name

Comm Loss: Winding Temp 1, Cprsr1A

Comm Loss: Winding Temp 1, Cprsr2A

Comm Loss: Winding Temp 2, Cprsr2A

Comm Loss: Winding Temp 2, Cprsr1A

Affects Target Severity Persistence

Circuit Normal Latch All

[Inactive Modes] Criteria

Continual loss of communication between the MP and the Functional ID has occurred for a 30 second period

Operator Display Diagnostics and Messages

Table 35. Operator display diagnostics and messages

Active Modes

Operator Display Message

Communication Lost with UC800

Display Failed to Establish Communication

Display is about to Restart

File Not Found • Update UC800 software with Tracer TU.

Screen partially populated. Auto and Stop button graphics display, no text.

Screen Unresponsive • TU is downloading software. Wait till download is complete.

The Page Cannot be found

UC800 Configuration is Invalid • Update the UC800 configuration with TU.

Description //Troubleshooting

• Ethernet cable not connected between display and UC800.

• UC800 not powered.

• UC800 has an invalid configuration – Download a valid configuration

• UC800 is in Binding View. When exit Binding View, select ‘Restart’ on this message

• Ethernet cable not connected between display and UC800.

• UC800 not powered.

• UC800 just has the backup application running as received from the vendor. Download CTV application software.

• UC800 has an invalid configuration – Download a valid configuration

• The display is low on memory, and needs to re-start. Select Yes to restart. Selecting Yes will not affect the UC800 operation. Only the Operator Display is reset.

• Valid configuration is not present. Download a configuration.

• Most likely this UC800 has only the backup application. Download the latest UC 800 software build.

• This could also mean that the UC800 does not have a valid configuration. Download a configuration to it.

• Cycle power to the OD and UC800.

• UC could be in binding view. If so, get it out of binding view by navigating to another screen in TU.

Reset Level

Remote

88 RTAE-SVX001B-EN

Unit Wiring

Table 36 provides a list of electrical schematics, field

wiring diagrams and connection diagrams for RTAE units.

RTAE-SVE001*-EN. A laminated wiring diagram booklet is also shipped with each RTAE unit.

Complete wiring package is documented in

Table 36. RTAE unit wiring drawing numbers

Drawing Number Description

Single Circuit Units 2311-1954 Schematic Diagram 5724-4483 Fan Location Diagram 5724-4473 Assembly; Sensor Routing 2311-1965 Panel Component Location Diagram 2311-1966 Field Wiring Diagram 2311-1964 Field Layout Diagram Dual Circuit Units 2311-1960 Schematic Diagram Dual Circuit without CE option 2311-1980 Schematic Diagram Dual Circuit with CE option 5724-2731 Fan Location Diagram 5724-2721 Assembly; Sensor Routing 2311-1963 Panel Component Location Diagram Dual Circuit without CE option 5724-4573 Panel Component Location Diagram Dual Circuit with CE option 2311-1961 Field Wiring Diagram Dual Circuit without CE option 2311-1967 Field Wiring Diagram Dual Circuit with CE option 2311-1962 Field Layout Diagram

(a)Dual circuit units with CE option will be indicated by unit model number digit 13=3.

(a)

RTAE-SVX001B-EN 89

Log and Check Sheet

The operator log and check sheet are included for use as

appropriate, for installationcompletion verification before Trane start-up is scheduled, and for reference during the Trane start-up.

Where the log or check sheet also exists outside of this

publication as standalone literature, the literature order

number is also listed.

• Stealth™ RTAE Installation Completion Check Sheet and Request forTrane Service (RLC-ADF002-EN)

• Operator Log

90 RTAE-SVX001B-EN

Stealth™ RTAE Installation Completion Check Sheet and Request forTrane Service

Important: A copy of this completed form must be submitted to theTrane service agency that will be responsible for the start-

up of the chiller. Start-up will NOT proceed unless applicable items listed in this form have been satisfactorily completed.

To: Trane Service Office:

S.O. Number: Serial Numbers:

Job/Project Name: Address: The following items are being installed and will be completed by:

Important: Start-up must be performed byTrane or an agent ofTrane specifically authorized to perform start-up of Trane

products. Contractor shall provide Trane (or an agent ofTrane specifically authorized to perform start-up) with notice of the scheduled start-up at least two weeks prior to the scheduled start-up.

Check boxes if the task is complete or if the answer is “yes.”

1. Chiller

 Installation meets foundation requirements.  In place and piped.  Isolation pads or elastomeric pads installed (optional).

2. Piping

 Water piping flushed before making final connections to the system Chilled water piping connected to:

 Evaporator  Air handling units  Pumps  Flow switch or flow proving device installed (if not factory provided)

 Strainer installed and cleaned  Water supply connected to filling system  Systems filled  Pumps run, air bled from system  Strainer installed and cleaned  Relief valve ventilation piping installed (if applicable)

3. Flow balancing valves installed

 Leaving chilled water  Leaving condenser water (if applicable)  Optional heat recovery or auxiliary condenser water (if applicable)

4. Gauges, thermometers, and air vents

 Installed on both sides of evaporator

5. Wiring

 Wire size per submittal and NEC  Full power available  Interconnecting wiring, starter to panel (as required)  External interlocks (flow switch, pumps auxiliary, etc.)  Chilled water pump (connected and tested)  115 Vac power available for service tools  All controls installed and connected  All magnetic starters installed and connected

6. Testing

 Dry nitrogen available for pressure testing  Trace gas amounts of R-410A or R-134a available for leak testing, if necessary

7.  Refrigerant on job site (if nitrogen charge option, model number digit 15 = 2, is chosen)

8.  Systems can be operated under load conditions

®

RLC-ADF002-EN 1

9. Heaters

 If unit was factory charged (model number digit 15 = 1), energize heaters for 24 hours prior to start up.

Important: It is required that chiller heaters are energized for a minimum of 24 hours prior to start up. Therefore,

chiller should have power for this amount of time beforeTrane Service arrives to do start-up.

 If unit has nitrogen charge (model number digit 15 = 2), contact Trane Service for unit charging prior to start-up.

Important: Do NOT apply shore power to unit with nitrogen charge. Shore power will drive EXV valves, inhibiting

ability to adequately vac and charge unit.

10.Equipment room

 Does the equipment room have a refrigerant monitor/sensor capable of monitoring and alarming within the allowable

exposure level of the refrigerant?

 Does the installation have properly placed and operating audible and visual refrigerant alarms?  Does the equipment room have proper mechanical ventilation?  If it is required by local code, is a self-contained breathing apparatus available?

11. Owner awareness

 Has the owner been fully instructed on the proper use of refrigerant?  Does the owner have a copy of the MSDS for refrigerant?  Was the owner given a copy of the Refrigerant Handling Guidelines?

Note: Additional time required to properly complete the start-up and commissioning, due to any incompleteness of the

installation, will be invoiced at prevailing rates.

®

This is to certify thattheTrane

equipment has been properly and completely installed, and that the applicable items listed above

have been satisfactorily completed.

Checklist completed by: ______________________________________________________________________________________________ Signed: _____________________________________________________________________ Date: _______________________________

In accordance with your quotation and our purchase order number __________________, we will therefore require the presence ofTrane service on this site, for the purpose of start-up and commissioning, by __________________ (date).

Note: Minimum two-week advance notification is required to allow scheduling of the chiller start-up.

Additional comments/instructions: ____________________________________________________________________________________

_____________________________________________________________________________________________________________________ _____________________________________________________________________________________________________________________

Note: A copy of this completed from must be submitted to theTrane Service Office that will be responsible for start-up of chiller.

Stealth,Trane and theTrane logo are trademarks or registered trademarks ofTrane in the United States and other countries.

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the

leader in creating and sustaining safe, comfortable and energy efficient environments, Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensive building services, and parts. For more information, visit www.Trane.com.

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

RLC-ADF002-EN 23 Sep 2013

New

We are committed to using environmentally

conscious print practices that reduce waste.

Operator Log

Stealth™ RTAE Chiller with UC800 Controller - Tracer AdaptiView Reports - Log Sheet

Start 15 minutes 30 minutes 1 hour

Evaporator

Active Chilled Water Setpoint Entering Water Temperature Leaving Water Temperature

Ckt 1

Saturated Refrigerant Temperature (°F) Refrigerant Pressure (psia) Approach Temperature (°F) Water Flow Status Spillover Tank Liquid Level (in) EXV % Open

Ckt 2

Saturated Refrigerant Temperature (°F) Refrigerant Pressure (psia) Approach Temperature (°F) Water Flow Status Spillover Tank Liquid Level (in) EXV % Open

Condenser

Outdoor Air Temperature

Ckt 1

Air Flow % Saturated Refrigerant Temperature (°F) Refrigerant Pressure (psia)

Ckt 2

Air Flow % Saturated Refrigerant Temperature (°F) Refrigerant Pressure (psia)

Compressor 1A

Running Status Starts Running Time (Hr:Min) Oil Pressure (psia)

Motor 1A

Active Demand Limit Setpoint Average Motor Current (%) Percent Speed AFD Average Input Current (Amps) AFD Average Input Voltage (Volts) AFD Input Power (kW) AFD Output Power (kW) AFD Speed (rpm)

Compressor 2A

Running Status Starts Running Time (Hr:Min) Oil Pressure (psia)

Motor 2A

Active Demand Limit Setpoint Average Motor Current (%) Percent Speed AFD Average Input Current (Amps) AFD Average Input Voltage (Volts) AFD Input Power (kW) AFD Output Power (kW) AFD Speed (rpm)

Date: Technician: Owner:

RTAE Operator Log Revised: 23 Sep 2013

Trane optimizes the performance of homes and buildings around the world. A business of Ingersoll Rand, the leader in

creating and sustaining safe, comfortable and energy efficient environments,Trane offers a broad portfolio of advanced controls and HVAC systems, comprehensi ve building services, and parts. For more information, visit www.Trane.com.

Trane has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice.

RTAE-SVX001B-EN 29 Oct 2014

Supersedes RTAE-SVX001A-EN (24 Sep 2013)

We are committed to using environmentally

conscious print practices that reduce waste.