Since the Trane Company has a policy of continuous productimprovement, it reserves the right to change specifications anddesign without notice.

Wiring Manual RAUC-W-21

Library Service Literature

Product Section Unitary

Product Split System Air Conditioning

Model RAUC

Literature Type Wiring

Sequence 21

Date December 2001

File No. SV-UN-S/S-RAUC-W-21-12/01

Supersedes New

TM

Split SystemRemote Condensing Unitsand EVP Chillers

This wiring manual contains; Field Wiring Schematicsfor; No Controls, Variable Air Volume, and EVP Controlapplications, Power Schematics for all controls, VariousControl Schematics, and Connection Diagrams.

Models"V" and Later Design SequenceRAUC-C20 RAUC-C40RAUC-C25 RAUC-C50RAUC-C30 RAUC-C60

With 3-D TM Scroll Compressors

Caution: The installation of this equipment mustcomply with all National, State, and LocalCodes.

Important! This document iscustomer property and must beretained by the unit'smaintenance personnel.

American Standard Inc, 2001http://www.trane.com

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Table of ContentsGeneral Information

Literature Change History ............................................... 2Warnings and Cautions ................................................... 2Model Number Description .............................................. 3

Wiring DiagramsFigure 1

Wire Selection & Fuse Replacement Table for20 through 60 Ton Units .................................................. 4Field Control Wiring Diagram Notes ................................ 5

Figure 2Typical Field Control Wiring Diagram for "No SystemControls" Application ....................................................... 6

Figure 3Typical Field Control Wiring Diagram for "ConstantVolume" Application ......................................................... 7

Figure 4Typical Field Control Wiring Diagram for "Variable AirVolume" Application ......................................................... 8

Figure 5Typical Field Control Wiring Diagram for "EVP"Application ....................................................................... 9

Figure 6Typical Power Schematic Diagram for 20 through60 Ton Units ................................................................... 10

Figure 7Typical "No System Control" Schematic Diagramfor 20 through 60 Ton Units ........................................... 12

Figure 8Typical "Constant Volume" Schematic Diagram for20 through 60 Ton Units ................................................ 14

Figure 9Typical "Variable Air Volume" Schematic Diagramfor 20 through 60 Ton Units ........................................... 16

Figure 10Typical "EVP" Schematic Diagram for 20 through60 Ton Units ................................................................... 18

Figure 11Typical Low Ambient Control and ConnectionDiagram for 20 through 60 Ton Units ............................. 20

Figure 12Typical Connection Diagram for 20 through 60 TonUnits with "No System Controls" Plate .......................... 22Typical "Control Plate" Connection Diagram Notes ....... 24

Figure 13Typical Connection Diagram with "Constant Volume"Control Plate .................................................................. 25

Figure 14Typical Connection Diagram with "Variable AirVolume" Control Plate ................................................... 26

Figure 15Typical Connection Diagram with "EVP"Control Plate .................................................................. 27

Literature Change History

RAUC-W-21 (December 2001)Original issue of wiring manual; provides typical field wiringand electrical schematics for "V" and later design sequenceon RAUC-C20 through C60 Ton units with; no controls, con-stant volume (CV), variable air volume (VAV) and EVP con-trols.

Note: The customer connection diagrams andelectrical schematics are typical illustrations andare published for general reference only. Thesediagrams may not reflect the actual wiring in yourunit, always refer to the wiring diagrams thatshipped with the unit for specific electricalschematic and connection information.

Warnings and Cautions

Warnings are provided to alert installing contractors, opera-tors, and service personnel of potential hazards that couldresult in personal injury or death.

Cautions are designed to alert personnel that equipmentdamage could occur if specific instructions are not followed.

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Model Number DescriptionAll Trane products are identified by a multiple-charactermodel number that precisely identifies a particular type ofunit. An explanation of the alphanumeric identification codesused for RAUC units is provided on this page. Its use will en-able the owner/operator, installing contractors, and serviceengineers to define the unit's specific components, type ofapplication, i.e. CV, VAV, EVP or No System Controls andoptions for any particular unit.

When ordering replacement parts or requesting service, besure to refer to the specific model number, serial number,and DL number (if applicable) stamped on the unit name-plate.

Sample Model No.: RAUC - C60 E B L 1 3 A, F, G, 1, etc Digit No.: 1 2 3 4 5,6,7 8 9 10 11 12 13+

Digit 1 - Unit Type Digit 8 - Power Supply Digit 11 - Ambient ControlR = Remote Condensing Unit E = 200/60/3 XL 0 = Standard

F = 230/60/3 XL 1 = Low Ambient 0o FDigit 2 - Condenser 4 = 460/60/3 XL A = Air Cooled 5 = 575/60/3 XL Digit 12 - Agency Approval

9 = 380/50/3 XL 0 = NoneDigit 3 - Air Flow D = 415/50/3 XL 3 = UL / CSAU = Up Flow

Digit 9 - System Control Digit 13 - Miscellaneous OptionsDigit 4 - Development Sequence B = No System Control A = Unit Mounted Disconnect SwitchC = Third C = Constant Volume Control B = Hot Gas Bypass Valves *

E = Supply Air VAV Control D = Suction Service ValvesDigits 5, 6, 7 - Nominal Capacity P = EVP Control F = Pressures Gauges & Gauge Piping *C20 = 20 Tons G = Return Air Sensor *C25 = 25 Tons Digit 10 - Design Sequence H = Condenser Coils with Copper FinsC30 = 30 Tons V = Disconnect Redesign T = Flow Switch (EVP Only) *C40 = 40 Tons 1 = Spring Isolators *C50 = 50 Tons 2 = Neoprene Isolators *C60 = 60 Tons 9 = Packed Stock

* Field Installed Options

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Figure 1Wire Selection & Fuse Replacement Table for 20 through 60 Ton Units

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Field Control Wiring Diagram NotesUse with Figures 2, 3, 4 & 5

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Figure 2Typical Field Control Wiring Diagram for "No System Controls" Application(Refer to the Wire Sizing Table & Notes on page 4 & 5)

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Figure 3Typical Field Control Wiring Diagram for "Constant Volume" Application(Refer to the Wire Sizing Table & Notes on pages 4 & 5)

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Figure 4Typical Field Control Wiring Diagram for "Variable Air Volume" Application(Refer to the Wire Sizing Table & Notes on pages 4 & 5)

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Figure 5Typical Field Control Wiring Diagram for "EVP" Application(Refer to the Wire Sizing Table & Notes on pages 4 & 5)

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Figure 6Typical Power Schematic Diagram for 20 through 60 Ton Units

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Figure 7Typical "No System Control" Schematic Diagram for 20 through 60 Ton Units

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Figure 8Typical "Constant Volume" Schematic Diagram for 20 through 60 Ton Units

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Figure 9Typical "Variable Air Volume" Schematic Diagram for 20 through 60 Ton Units

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Figure 10Typical "EVP" Schematic Diagram for 20 through 60 Ton Units

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Figure 11Typical Low Ambient Control and Connection Diagram for 20 through 60 Ton Units

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Figure 12Typical Connection Diagram for 20 through 60 Ton Units with "No System Controls" Plate(Use with Figures 13, 14 & 15)

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Typical Connections Diagram NotesUse with Figures 13, 14 & 15

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Figure 13Typical "Constant Volume" Control Plate Connection Diagram(Use with Figure 12)

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Figure 14Typical "Variable Air Volume" Control Plate Connection Diagram(Use with Figure 12)

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Figure 15Typical "EVP" Control Plate Connections Diagram(Use with Figure 12)

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