Trane X39640516 01 T Series Climate Changer ® Central Station Air Handlers Installation And Maintenance PDF Manual (CLCH IM 16A) User To The Aa7b2f09 8f06 4c3e 92ee 72770f6ab1fb

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Since the Trane Company has a policy of continuous product improvement, it reserves the right to change

specifications and designs without notice. The installation and servicing equipment referred to into this book-

let should be done by qualified experienced technicians.

Installation CLCH-IM-16A

and

Maintenance

Manual

Library Service Literature

Product Section Air Handling

Product Central Station Air Handlers

Model T-Series Climate Changer

Literature Type Installation/Maintenance

Sequence 2

Date March 1999

File No. CLCH-IM-16A 3/99

T-Series Climate

Changer® Central

Station Air Handlers

Draw-Thru and Blow-Thru Unit Sizes 3, 6, 8, 10, 12, 14, 17, 21, 25, 30,

35, 40, 50, 66, 80, and 100

Notice

WORLD ENVIRONMENTAL SCIENTISTS HAVE

CONCLUDED, BASED ON THE BEST CURRENTLY

AVAILABLE EVIDENCE, THAT OZONE IN OUR UPPER

ATMOSPHERE IS BEING REDUCED DUE TO THE

RELEASE OF CFC FULLY HALOGENATED

COMPOUNDS.

THE TRANE COMPANY URGES THAT ALL HVAC

SERVICERS WORKING ON TRANE EQUIPMENT, OR

ANY MANUFACTURER’S PRODUCTS, MAKE EVERY

EFFORT TO ELIMINATE, IF POSSIBLE, OR

VIGOROUSLY REDUCE THE EMISSION OF CFC,

HCFC, AND HFC REFRIGERANTS TO THE

ATMOSPHERE RESULTING FROM INSTALLATION,

OPERATION, ROUTINE MAINTENANCE, OR MAJOR

SERVICE ON THIS EQUIPMENT. ALWAYS ACT IN A

RESPONSIBLE MANNER TO CONSERVE

REFRIGERANTS FOR CONTINUED USE EVEN WHEN

ACCEPTABLE ALTERNATIVES ARE AVAILABLE.

REFRIGERANT USED IN ANY TYPE OF AIR-

CONDITIONING OR REFRIGERATING EQUIPMENT

SHOULD BE RECOVERED FOR REUSE, RECOVERED

AND /OR RECYCLED FOR REUSE, REPROCESSED

(RECLAIMED), OR PROPERLY DESTROYED,

WHENEVER IT IS REMOVED FROM EQUIPMENT.

NEVER RELEASE TO THE ATMOSPHERE!

Warning and Cautions

Notice that WARNING and CAUTION appear at

appropriate intervals throughout this manual.

WARNING

WARNING indicates a potentially hazardous

situation that could result in personal injury or death.

CAUTION

CAUTIONs are designed to alert you to conditions

that could result in minor personal injury or

equipment damage.

Literature Change History

CLCH-IM-16 (November 1997)

Initial Manual covering T-Series Climate Changer, sizes

3, 6, 8, 10, 12, 14, 17, 21, 25, 30, 35,40, 50, 66, 80, and

100.

CLCH-IM-16A (March 1999)

Revised manual to include new details on shipping,

assembly, and installation.

T-Series Climate Changer

Table of Contents

General Information ............................................. 1

Unit Description .................................................. 1

Operating Environment ....................................... 1

Unit Nameplates ................................................. 1

Controls .............................................................. 2

Receiving .............................................................. 3

Storage Considerations ...................................... 3

Rigging and Handling .......................................... 4

Determine Unit Weights ...................................... 4

Lifting Instructions ............................................. 12

Installation .......................................................... 15

Unit Assembly .................................................... 16

General ............................................................. 16

Unit Assembly - All Sizes .................................. 16

Component Installation Requirements ............. 22

Fan Section ...................................................... 22

Set-Up ................................................................. 25

Duct Connections ............................................. 28

Drain Pan .......................................................... 30

Coil Piping And Connections ............................ 32

Refrigerant Coil Piping ...................................... 46

General Refrigerant Piping Recommendations 47

Wiring ............................................................... 49

Installation Checklist ......................................... 51

Prestart-Up Checks .......................................... 51

Start-Up ............................................................... 53

Start-Up Procedures ......................................... 53

Periodic Maintenance ........................................ 59

Drain Pans ........................................................ 60

Air Filters .......................................................... 60

Fans .................................................................. 61

Fan Bearings and Motors ................................. 61

Coil Cleaning .................................................... 63

Coil Winterization .............................................. 65

Troubleshooting ................................................. 66

Installation and Maintenance 1

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Unit Description

Trane T-Series Climate Changers® are Central

Station Air Handlers designed for a variety of air

handling applications. The basic unit consists of a

fan, heating and/or cooling coils, filters, and

dampers. See the sales catalog (CLCH-DS-9) for a

list of available options and components.

The fan is internally isolated. Fans available are

double-width, double-inlet Centrifugal types with

forward curved, backward inclined, or airfoil blade

type design; single-width, single-inlet Plug Fans or

Vane-Axial Q Fans®. Fans are available in low,

medium, and high pressure classes with or without

inlet guide vanes.

To insure fan stability, the unit ships with four (4) lock-

down devices that prevent the fan from shifting

during shipment and installation. These spacers

must be removed prior to fan operation to assure

proper vibration isolation.

The units are available with factory-mounted controls

for stand-alone operation or operation with a

complete building automation system. This includes

factory-mounted starters, DDC controllers, and end

devices.

Trane T-Series Climate Changers ship as complete

assemblies or sectional subassemblies. Some

assembly is required when the units ship as

subassemblies.

Operating Environment

The T-Series Climate Changer (TSC) is an outdoor

air handler. When considering the placement of the

TSC it is important to consider the operating

environment. The acceptable ambient temperature

range for unit operation is -40° to +140°F (-40°C to

60°C).

For heating applications a special motor may be

required to withstand the higher temperatures.

Motors with Class “B” insulation are acceptable for

ambient temperatures up to 104°F while motors with

class “F” insulation can withstand ambient

temperatures to +140° F (60°C).

NOTE: IT IS RECOMMENDED THAT THE CUSTOMER

PROVIDE ADEQUATE FREEZE PROTECTION FOR THE

COILS.

UNITS WITH UL APPROVAL HAVE A MAXIMUM

AMBIENT TEMPERATURE REQUIREMENT OF 104

Unit Nameplates

Each unit section is provided with a section

nameplate (label). See

Figure 1

. This nameplate

includes type of section, section serial number,

customer tagging information, section position and

service model number.

Figure 1

Unit Nameplate

Customer Furnished

Section Service

Model Number

Sales Order

Number

Type of Section

Section Serial Number

Section Unit

Number

Tagging Information

2CLCH-IM-16A

Each section of a T-Series Climate Changer is

identified with a multi-character model number and

serial number. The model number precisely identifies

a particular section. Refer to model number and

serial number when ordering parts or requesting

service.

If the unit ships as individual sections or section

subassemblies refer to the nameplate for customer

tagging information and section position to insure

proper placement of the sections during assembly.

Controls

Wiring Sizes and Connections

Entrances are provided for field installation of high

and low voltage wiring through a pipe/nipple

connection in the base of the unit. The low and high

voltage connections are on opposite sides of the unit

on sizes 3 - 50 and on the same side for sizes 66 -

100.

CAUTION

The high and low voltage wire

raceways for the T-series units are

intended for factory wiring ONLY.

Do not use these raceways for

field uses. Failure to follow these

instructions can result in damage

to the unit.

Wiring to the unit must be provided by the installer

and must comply with all national and local electrical

codes. The motor nameplate includes a wiring

diagram. If there are any questions concerning the

wiring of the motor be sure to take the motor

manufacturer’s name, model number, and serial

number and contact your local Trane representative

for assistance.

Factory Mounted Controls

NOTE: FOR MORE IN-DEPTH UNDERSTANDING OF

THE PROGRAMMABLE CONTROL MODULE (PCM)

REFERENCE INSTALLATION GUIDE EMTX-IN-11A,

APPLICATION GUIDE EMTX-AG-1, OPERATORS

GUIDE EMTX-OG-4, INSTALLATION, OPERATION AND

PROGRAMMING GUIDE CLCH-IOP-1, AND

INSTALLATION, OPERATION AND MAINTENANCE

MISC-IOM-5.

The T-Series Climate Changer is available with a

wide array of factory mounted controls. They include

the Programmable Control Module (PCM), motor

starters, and Variable Frequency Drives (VFD).

NOTE: THIS SECTION WILL PROVIDE A BRIEF

OVERVIEW OF THE OPTIONAL FACTORY MOUNTED

CONTROLS. FOR MORE IN-DEPTH UNDERSTANDING

OF THE PROGRAMMABLE CONTROL MODULE (PCM),

REFERENCE INSTALLATION GUIDE EMTX-IN-11A,

APPLICATION GUIDE EMTX-AG-1, OPERATORS’

GUIDE EMTX-OG-4, INSTALLATION OPERATION AND

PROGRAMMING GUIDE CLCH-IOP-1 AND

INSTALLATION OPERATION AND MAINTENANCE

MISC-IOM-5.

Most control components are mounted inside the

units. Depending on system configuration, these

controls may include damper actuators, dirty filter

switches, averaging temperature sensors, low limit

switches, point temperature switches, and inlet guide

vane actuators. Variable frequency drives, starters,

PCMs, control transformers, static pressure

transducers, DC power supplies, customer interface

relays, etc. will be in enclosures mounted on the

inside of the unit.

Small items that cannot be factory-mounted will ship

inside the control enclosures. These controls may

include space temperature sensors, outside air

temperature sensors, and humidity sensors.

All control valves will ship directly to the “ship to

address” from the vendor, unless another address

was given on the order.

All constant volume or variable air volume control

systems are provided with 120 to 24 VAC control

transformers. Unless ordered with a factory-

mounted/wired starter or variable frequency drive,

the customer must provide 120 VAC control power,

50/60 hz, typically 3 amps for unit sizes 3 - 50, and 5

amps for unit sizes 66 -100. A dedicated 15 amp

circuit is recommended.

A T-Series Climate Changer unit and/or field-installed

accessories that must be stored for a period of time

prior to being installed MUST be protected from the

elements. The PCM and all other electrical/electronic

components should be stored in conditions of -20 -

120°F and 5 - 95% relative humidity non-condensing.

Electrical components ARE NOT moisture-tolerant

The warranty will not cover damage to the unit or

controls due to negligence during storage. A

controlled indoor environment is recommended for

proper storage. For further storage considerations,

refer to “Storage Considerations” in the next section.

Installation and Maintenance 3

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The T-Series Climate Changer can ship as individual

sections, section subassemblies, or a complete air

handler. Sizes 3 - 100 have an integral base rail.

Upon receipt of the unit(s) and prior to unloading,

inspect the unit for damage and verify that the

shipment is complete. Delivery cannot be refused.

Inspection

1Visually inspect components for any damage that

may have occurred during shipment.

NOTE: THE TRANE COMPANY IS NOT RESPONSIBLE

FOR SHIPPING DAMAGE.

2Check all access doors to confirm that the latches

and hinges are not damaged.

3Check all coil connections to confirm they are

straight and undamaged.

4Inspect the coils for damage to the fin surface or

coil connections.

5Check all devices attached to the unit exterior and

confirm that they are not damaged.

6Manually rotate the fan wheel to ensure free

movement of the shaft, bearings, and drive.

Inspect the fan housing for any foreign objects.

7Inspect the interior of each section for any internal

damage as soon as possible after delivery.

Concealed damage must be reported within 15

days of receipt.

8If the unit was ordered with Factory Mounted

Controls, locate all sensors. These components

will be shipped inside the control enclosure.

9If the unit shipped in subassemblies, locate

assembly hardware. The necessary assembly

hardware will be packaged inside the fan section

or the mixing section.

Resolving Shipping Damage

The T-Series Climate Changer ships FOB. If damage

has occurred to the unit sections during shipment,

the following instructions should be completed:

1Make specific notation describing the damage on

the freight bill.

2Report all claims of shipping damage to the

delivering carrier immediately.

3Keep damaged material in the same location as it

was received. It is the receiver’s responsibility to

provide reasonable evidence that the concealed

damage was not incurred after delivery.

4Notify the Trane sales representative of the

damage and arrange for repair. Do not attempt to

repair the unit without consulting the sales

representative.

TRANE IS NOT RESPONSIBLE

FOR SHIPPING DAMAGE.

Storage Considerations

General

The Trane T-Series Climate Changer air handler is

an outdoor unit and requires no special protection for

storage before installation. Keep the equipment in

the original shipping container for protection and

ease of handling. The warranty will not cover

damages to the unit due to negligence during

storage.

For longer periods of storage, allow enough

clearance around the unit to perform periodic

inspection and maintenance of the equipment. In

addition, loosen belt tension on drive belts.

Long Term Storage

Every two weeks, rotate the fan and motor shaft thirty

revolutions by hand. Check for free rotation.

Every six months, check fan shaft bearings and

grease lines. Add grease using a manual grease gun

following the lubrication recommendations in the

Periodic Maintenance section.

Check the motor lubrication; remove and clean

grease plugs and check for the presence of moisture

in the grease. If moisture is present, remove the

motor and send it to an authorized repair shop for

bearing inspection/replacement. If no moisture is

present, refer to the motor manufacturer’s lubrication

recommendation for proper lubrication.

4CLCH-IM-16A

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The unit will be shipped (as specified by sales order)

as 1) a complete assembly, 2) in sub-assemblies

(collection of sections), or 3) as individual sections.

Follow appropriate lift warnings as shown on the

label affixed to the unit.

WARNING

Never bolt (assemble) sections or

sub-assemblies together before

rigging. Always rig subassem-

blies or sections as received from

the factory.

CAUTION

Do NOT lift from the top of the unit.

Lift only from lift lugs located at

the bottom of the unit. Use all lift

lugs provided. Failure to do so can

damage the unit.

Determine Unit Weights

Weights in this manual are approximate. Always test-

lift the unit section to check for proper balance and

rigging before hoisting to the desired location.

When preparing to lift sections, estimate the

equipment’s approximate weight and center of

gravity. Refer to the tables listed below and placed on

the following pages. Due to placement of internal

components, the weight of the unit may be unevenly

distributed, with more weight being present in the fan

and coil areas)

Table 1

T-Series Section Weights (lb) - Unit Sizes 3 - 50

Trane Unit Size 36810 12 14 17 21 25 30 35 40 50

Filter / Mixing

225 232 270 367 393 443 490 526 624 687 933 1025 1148

Economizer

314 377 419 582 637 677 740 827 902 1118 1291 1544 1785

Exhaust

88 105 115 134 145 154 167 187 201 219 265 283 399

Air Blender

191 242 279 355 380 399 431 477 562 614 822 888 1080

Flat Filter

71 84 91 109 122 130 140 157 164 177 235 249 365

Angled Filter

154 199 232 242 261 290 312 338 355 389 545 590 684

Bag Filter

189 248 281 285 323 372 426 511 579 632 698 752 852

Cartridge Filter

143 181 213 218 235 266 284 317 334 368 494 538 621

Sm. Blank / Inspection

47 56 61 71 76 80 85 95 100 108 130 139 221

Med Blank / Access

62 75 80 95 101 105 113 125 132 143 169 181 269

M-L Blank / Access

N/A N/A N/A 161 171 179 192 212 221 241 334 364 429

Large Blank / Access

105 137 164 218 232 243 261 289 361 393 541 584 662

Small Coil

Weight includes 2 row UW

117 151 170 210 238 255 285 323 353 390 448 487 757

Med. Coil

Weight includes 8 row UW

182 250 294 363 431 476 539 641 722 824 897 1017 1444

M-L Coil

Weight includes 10 row W

N/A N/A N/A 649 788 842 967 1142 1298 1483 1759 1982 2550

Large Coil

Weight includes 10 row W

323 439 568 720 864 923 1054 1234 1465 1664 1986 2222 2804

Moisture Eliminator

59 80 93 147 167 182 202 231 254 289 347 385 554

Internal Face/Bypass

98 129 144 185 200 230 252 281 306 343 425 480 645

Face Damper

98 129 144 185 200 230 252 281 306 343 425 480 645

Installation and Maintenance 5

Front Horiz Disch Fan

Weight includes Type A fan

300 444 500 508 599 652 762 905 1022 1277 2010 2168 2560

Bottom Vert Disch Fan

Weight includes Type A fan

347 500 561 580 676 731 847 1000 1122 1385 2139 2307 2780

Diffuser

74 91 98 114 122 130 143 163 173 192 293 322 445

Discharge Plenum

92 118 135 195 204 209 224 252 318 337 472 511 571

Table 1

T-Series Section Weights (lb) - Unit Sizes 3 - 50

Trane Unit Size 36810 12 14 17 21 25 30 35 40 50

Table 2

T-Series Section Weights (lb) - Unit Sizes 66 - 100

Trane Unit Size 66 80 100

Filter / Mixing

1367 1511 1817

Economizer

2147 2382 2984

Exhaust

464 506 572

Air Blender

1257 1386 1640

Flat Filter

432 477 546

Angled Filter

797 839 964

Bag Filter

1046 1163 1414

Cartridge Filter

761 798 911

Sm. Blank / Inspection

252 262 288

Med Blank / Access

307 319 350

M-L Blank / Access

472 491 538

Large Blank / Access

775 870 1056

Small Coil

Weight includes 2 row UW

933 1040 1237

Med. Coil

Weight includes 8 row UW

1850 2143 2608

M-L Coil

Weight includes 10 row W

3372 3884 4738

Large Coil

Weight includes 10 row W

N/A N/A N/A

Moisture Eliminator

710 786 928

Internal Face/Bypass

753 852 1002

Face Damper

753 852 1002

Front Horiz Disch Fan

Weight includes Type A fan

3621 4391 5141

Bottom Vert Disch Fan

Weight includes Type A fan

3621 4391 5141

Diffuser

913 1029 1257

Discharge Plenum

651 769 928

Table 2

T-Series Section Weights (lb) - Unit Sizes 66 - 100

Trane Unit Size 66 80 100

Table 3

Inlet Guide Vane Weights (lb)

Fan Type/

Unit Size 3 6 8 10 12 14 17 21 25 30 35 40 50 66 80 100

FC Fan N/A 38 38 43 46 55 57 65 70 70 105 128 155 155 N/A N/A

BI Fan N/A N/A N/A 58 63 69 76 89 66 66 N/A N/A N/A N/A N/A N/A

AF Fan N/A N/A N/A N/A N/A N/A N/A N/A N/A N/A 36 43 54 64 93 111

Plug Fan N/A N/A N/A N/A N/A N/A N/A 25 29 29 40 64 74 100 122 118

6CLCH-IM-16A

Table 4

Approximate Motor Weights (lb)

Motor Type/

Horsepower 1/6 1/4 1/3 1/2 3/4 1 1-1/2

General Purpose ODP 16 21 24 26 28 32 35

General Purpose TEFC N/A N/A N/A N/A N/A 50 54

Energy Efficient ODP N/A N/A N/A N/A N/A 35 41

Energy Efficient TEFC N/A N/A N/A N/A N/A 36 46

VAV-ODP N/A N/A N/A N/A N/A 38 42

Motor Type/

Horsepower 2 3 57-1/2101520253040506075100

General Purpose

ODP

38 70 88 126 151 230 265 329 359 370 508 685 722 970

General Purpose

TEFC NA

60 90 111 163 193 253 300 365 409 610 681 872 968 1255

Energy Efficient

ODP

41 67 79 107 119 215 260 286 334 372 406 591 765 989

Energy Efficient

TEFC

45 75 96 140 160 233 289 332 384 471 536 764 820 1302

VAV-ODP 42 87 91 132 147 230 220 331 352 450 509 796 825 1000

Table 5

Approximate Dry Cooling Coil Weights Type UU, UF, and UW, Fin Series 168 (Weights in lb)

Unit Size

Rows3 6 8 101214172125303540 50 66 80100

2 41 58 69 88 110 122 138 175 197 222 247 274 358 458 548 666

4 63 94 114 146 181 203 232 289 329 376 425 475 621 804 956 1175

6 79 121 148 188 236 266 306 381 437 503 573 645 831 1083 1292 1604

8 94 147 182 231 290 329 380 473 545 631 721 814 1042 1362 1628 2032

Table 6

Unit Size 3, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

144 4439 57

2 65774144 66 38

Installation and Maintenance 7

4 90 127 66 68 83 107 99

6 116 176 95 102 148 157) 123

8 141) 231 122 131 189 183 148

10 166 274 231 241 173

12 191 324 272 266 198

Table 6

Unit Size 3, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

Table 7

Unit Size 6, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

153 5348 73

2 81935659 81 54

4 119 155 95 96 111 135 127

6 157 217 136 142 189 198 164

8 194) 285 175 185 243 236 201

10 232 341 297 307 238

12 270 403 351 345 275

Table 8

Unit Size 8, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

171 71 66 97

2 108 124 75 77 109 72

4 164 210 130 131 146 183 175

6 217 296 187 194 259 273 227

8 271 382 244 253 334 327 280

10 326 469 409 425 334

12 380 555 484 480 387

8CLCH-IM-16A

Table 9

Unit Size 10, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

180 80 75 114

2 127 144 94 97 128 91

4 197 245 164 166 181 218 209

6 266 346 237 244 308 322 275

8 336 447 308 318 398 392 344

10 405 548 489 505 412

12 475 650 579 575 481

Table 10

Unit Size 12, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 103 103 103 142

2 165 185 119 122 166 116

4 257 316 211 213 228 284 274

6 349 448 306 313 402 421 361

8 441 579 400 410 521 513 452

10 533 710 638 661 542

12 625 842 756 75 633

Table 11 Unit Size 14, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 107 107 107 149

2 173 192 126 129 173 123

4 271 330 225 226 241 297 287

6 369 467 326 333 42 441 381

8 467 605 426 435 547 539 477

10 565 742 671 693 574

12 663 880 796

Installation and Maintenance 9

Table 12

Unit Size 17, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 123 123 122 172

2 199 221 N/A N/A 199 145

4 316 381 N/A N/A N/A 345 333

6 434 542 N/A N/A 491 513 445

8 551 703 N/A N/A 637 630 561

10 667 864 782 810 677

12 786 1025 928 928 792

Table 13

Unit Size 21, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 148 149 139 214

2 241 264 191 197 241 184

4 379 451 330 333 364 411 396

6 517 637 475 489 581 600 528

8 655 835 617 636 752 738 664

10 793 1009 922 943 800

12 931 1195 1092 1081 936

Table 14

Unit Size 25, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 170 171 161 247

2 277 305 219 225 278 213

4 440 524 384 386 417 478 461

6 604 743 553 567 678 701 617

8 767 969 721 739 878 864 778

10 930 1181 1078 1105 939

10 CLCH-IM-16A

12 1093 1401 1278 1268 1100

Table 14

Unit Size 25, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

Table 15

Unit Size 30, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 190 191 180 278

2 312 340 254 260 313 249

4 505 588 448 450 481 542 526

6 697 837 647 661 771 794 709

8 889 1091 842 862 1001 897 899

10 1082 1333 1230 1257 1088

12 1275 1582 1459 1450 1278

Table 16

Unit Size 35, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC TT NS

1 275 N/A N/A N/A 212 224 333

2 379 413 340 298

4 616 717 660 642

6 853 1022 943 974 879

8 1091 1333 1224 1211 1116

10 1328 1631 1505 1544 1353

12 1565 1936 1788 1781 1590

Table 17

Unit Size 40, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC NS

1 306 N/A N/A N/A 231 247 368

2 425 458 381

Installation and Maintenance 11

4 699 800 743 724

6 973 1142 1062 1093 998

8 1247 1489 1381 1368 1273

10 1521 1825 1700 1738 1546

12 1795 2166 2018 2011 1820

Table 18

Unit Size 50, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC NS

1 386 N/A N/A N/A 294 322 477

2 551 592 491

4 920 1044 975 953

6 1289 1496 1399 1440 1323

8 1658 1949 1823 1810 1692

10 2028 2400 2248 2297 2061

12 2397 2853 2672 2666 2431

Table 19

Unit Size 66, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC N NS

1 521 N/A N/A N/A 387 441 660 648

2 738 789

4 1242 1383 1302 1275 660

6 1740 1980 1866 1908 1776

8 2241 2577 2430 2409 2277

10 2742 3171 2994 3042 2778

12 3243 3768 3555 3543 3279

Table 20

Unit Size 80, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC NS

1 611 N/A N/A N/A 453 494 753

Table 17

Unit Size 40, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC NS

12 CLCH-IM-16A

Lifting Instructions

The Trane Company recommends that the contractor

use spreader bars and slings to rig units and

subassemblies (sections) as shown.

qAlways assemble the unit at the installation site.

qAlways rig subassemblies or sections as they ship

from the factory.

qMake the loop of the sling parallel to the direction

of airflow, whenever possible.

The following instructions cover lifting the unit as well

as inlet and exhaust hoods and external pipe chases.

Follow specific instructions.

WARNING

Follow good lifting practices

before lifting the unit to include

following instructions in this man-

ual, estimating center of gravity,

and test lifting the unit to check

balance and stability.

Do NOT use fork lifts for handling

units.

Never lift units in windy conditions

or raise units above personnel.

Failure to follow all instructions

may result in personal injury or

equipment damage.

1Before lifting the unit, estimate the approximate

center of gravity and test lift the unit to determine

balance and stability.

NOTE: PREPARATION OF THE ROOF CURB OR PIER

MOUNT AND ROOF OPENINGS SHOULD BE

COMPLETED BEFORE LIFTING UNIT TO THE ROOF.

SEE THE ASSEMBLY SECTION OF THIS MANUAL.

2 873 932 778

4 1471 1643 1547 1516

6 2068 2355 2219 2275 2114

8 2664 3066 2893 2872 2710

10 3262 3777 3565 3632 3307

12 3859 4490 4268 4228 3904

Table 21

Unit Size 100, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC NS

1 729 N/A N/A N/A 546 603 909

2 1065 1131 945

4 1815 2010 1900 1866

6 2565 2889 2733 2802 2613

8 3315 3771 3570 3552 3363

10 4062 4653 4404 4488 4113

12 4812 5529 5238 5238 4863

Table 20

Unit Size 80, Approximate Dry Coil Weights, Fin Series 168 (Weights in lb)

Coil Type

Rows W K P2 P4 P8 D DD WD WA WC NS

Installation and Maintenance 13

USE ALL OF THE LIFT LUGS PROVIDED.

NEVER STACK THE PIPE CABINET AND INLET

HOODS ON THE UNIT AS THE UNIT IS BEING LIFTED.

2Lift all sections individually using all lifting lugs

provided and shown in

Figure 4

. See specific

instructions for handling the inlet and exhaust

hoods and pipe chase in paragraphs following.

3Remove all wooden blocks before installing the

unit to the roof curb (see

Figure 5

4After the sections are in place, assemble them

(see Unit Assembly).

Lifting Inlet and Exhaust Hoods

CAUTION

Do not attach the hood to the unit

prior to lifting the unit. Doing so

could damage the equipment.

Follow all warnings lifting instructions in the general

Lifting section of this manual to include test lifting.

Lift the hood sections individually as shown in

Figure

. Attach the cables, chains or straps to lifting lugs

as shown.

Attach the hood to the unit only after all sections are

in place.

Figure 2

Inlet and Exhaust Hood Lifting

Lifting the External Pipe Cabinet (Chase)

CAUTION

Do not attach the pipe chase to the

unit prior to lifting the unit. Doing

so could damage the equipment.

Follow all warnings lifting instructions in the general

Lifting section of this manual to include test lifting.

Lift the pipe chase section individually as shown in

Figure 3

. Attach the cables, chains or straps to lifting

lugs as shown.

Attach the pipe chase to the unit only after all

sections are in place.

Figure 3

Pipe Cabinet Lifting

Recommended

to lift lugs

attachment

Rigging and spreader bar

not furnished by Trane

Recommended

attachment to

lifting lugs

14 CLCH-IM-16A

Figure 4

Field Unit Lifting

Figure 5

Shipping Block Removal

Rigging and spreader

bars not furnished by Trane

Recommended attachment

to lifting lugs

Remove ALL wooden blocks

before installing unit to roof curb

Installation and Maintenance 15

,QVWDOODWLRQ

When preparing the unit site, consider the following:

1Ensure that the site can support the total weight of

the unit.

Table 1

and

Table 2

list approximate

section weights.

2Allow sufficient space for the recommended

service access. Refer to

Figure 6

for FC, BI and

AF fan wheels and for plug fans.

3Confirm that the foundation of the mounting

platform is large enough to include the unit

dimensions. Refer to unit submittals for specific

dimensions.

Figure 6

Service Clearances

The floor or foundation must be level for proper coil

drainage and condensate flow.

4Allow the proper height for condensate drain

requirements. Insufficient height may inhibit

condensate drainage and result in flooding the

unit.

5Provide adequate lighting for maintenance

personnel to perform maintenance duties.

6Provide permanent power outlets in close

proximity of the unit for installation and

maintenance.

Coil Filter

FanDrive

Table 22

Service Clearances (in inches)

Unit

Size Filter A Coil

Removal B Fan C Starter D

48 48 48 60

48 60 48 60

48 64 48 60

48 75 51 60

48 79 54 60

48 83 58 60

48 89 61 60

48 91 60 60

48 93 66 60

48 106 66 60

48 110 65 60

48 123 70 60

48 134 77 60

52 150 93 60

56 150 91 60

100

58 165 101 60

Table 22

Service Clearances (in inches)

Unit

Size Filter A Coil

Removal B Fan C Starter D

16 CLCH-IM-16A

8QLW$VVHPEO\

The T-Series Climate Changer is extremely versatile

and can be assembled in many configurations. Prior

to unit assembly, refer to the correct submittals

and unit tagging for correct placement of

accessory sections. Failure to review the submittal

could result in performance or assembly problems. If

there are any discrepancies, contact your local Trane

representative before proceeding.

IMPORTANT: All shipping support screws on the

face of the sections and sectional subassemblies

must be removed and discarded to permit proper fit-

up and sealing of the surfaces.

General

WARNING

To avoid personal injury or death

keep open flame away from unit

exterior or interior. Do not weld or

use cutting torch on the exterior or

interior of the unit. The unit con-

tains polyurethane insulation. Fail-

ure to keep open flame away from

unit exterior or interior may result

in the production of toxic gas that

could result in death or serious

injury.

CAUTION

The internal sections of this unit

containing electrical components

must not exceed 104o F tempera-

ture. Internal sections of the unit

not containing electrical compo-

nents must not exceed 180o F tem-

perature. Failure to comply with

temperature requirements may

cause equipment damage.

Units may be mounted on the roof with a roof curb or

pier mount. Refer to submittals for dimensions and

roof openings. Provide clearance around the unit to

allow adequate free air and necessary service

access. Also, allow room for supply and return

piping, ductwork, electrical connections, and coil

removal.

The building roof must be able to support the entire

weight of the unit, roof curb and accessories. See

Table 1

thru

Table 4

for unit and accessory weights.

qPrepare the roof curb or pier mount and roof

openings before hoisting the unit to the roof.

qCheck that the gasketing is intact and provides an

airtight seal with the unit base. Refer to the

applicable roof curb installation manual.

qComplete all ductwork, piping and electrical

connections only after mounting the unit. Refer to

unit submittals.

All T-Series Climate Changer units are identified by a

multiple-character model number that identifies each

section. It is located on the panel on the inside of the

supply fan section access door. Be sure to refer to

the information on the nameplate when ordering

replacement parts or requesting service

Assembly Hardware

T-Series Climate Changers ship with all necessary

assembly hardware and gasket material. This

hardware is packaged in either a clear plastic

envelope or cardboard box and can be found inside

the Fan section, Access section, or Mixing section.

The number of sections to be assembled often

makes it necessary to use more than one section to

ship the material. Please check

all

sections

thoroughly before contacting your Trane Company

Representative to report missing hardware.

Unit Assembly - All Sizes

Mounting

If a unit arrives in sections, then each section must

be individually hoisted, set on a roof curb or pier

mount and assembled.

The pipe cabinet must also be mounted as an

individual section. Refer to the pipe cabinet assembly

section following for specific instructions.

When mounting the unit on its roof curb or pier mount

make sure that the gasketing between the roof curb

or pier mount and unit base provides an airtight seal.

See

Figure 7

and

Figure 8

for suggested pier/rail

mounting.

Installation and Maintenance 17

Figure 7

Pier Locations (Typical)

Figure 8

Side View of Unit with Two Shipping Splits

NOTE: PIERS BENEATH SHIPPING SPLITS MUST BE

STRUCTURALLY SOUND TO SUPPORT THE WEIGHT

OF THE UNIT

Locate one pier at each corner, as a minimum,

directly underneath any shipping split (ensure full

support under each side), and then every four feet at

equally spaced intervals around the perimeter of the

unit. Both the unit and the pipe cabinet should be

supported by their base channel around the entire

perimeter.

CHECK THAT THE UNIT IS LEVEL TO ENSURE

PROPER OPERATION.

IMPORTANT: FOR PROPER OPERATION, THE UNIT

MUST BE INSTALLED LEVEL (ZERO TOLERANCE) IN

BOTH HORIZONTAL AXES. FAILURE TO LEVEL THE

UNIT PROPERLY CAN RESULT IN CONDENSATE

MANAGEMENT PROBLEMS SUCH AS STANDING

WATER INSIDE THE UNIT. STANDING WATER AND

WET SURFACES INSIDE AIR HANDLING UNITS CAN

RESULT IN MICROBIAL GROWTH (MOLD) IN THE

DRAIN PAN THAT MAY CAUSE UNPLEASANT ODORS

AND SERIOUS HEALTH-RELATED INDOOR AIR

QUALITY PROBLEMS.

For vertical discharge units, allow space under the

unit for supply air ductwork connections.

Assembling the Unit

Before sections are joined for final assembly, a butyl

tape seal must be made at the roof connection and

then hardware and sealing metal strips are installed

at the base assembly, the roof joint or joints and both

side panel seams.

Roof Assembly (for Unit Sizes 50-100 only)

Figure 9

Roof Assembly

Piers

4’ Typ

Unit Supports for Pier Mounts

Butyl Tape

Joint Strip Cross

Roof Panels

(2 Rows)

18 CLCH-IM-16A

NOTE: THE BUTYL TAPE APPLIED THE ROOF

PANELS WILL COVER THE DRILLED HOLES.

1Apply butyl tape along four roof panel seams

where they come together.

2Join the panels together at the seams and secure

them in place with 5/16 X 3/4” screws and nuts.

3Apply a strip of butyl tape along the center of the

joint and place the cross cover directly over it as

shown in

Figure 10

4Slide the three roof joint strips (one long and two

short) along the flat flange formed by the joined

roof panels in the three directions shown, allowing

4” overhang at the ends.

5Crimp down the three overhanging ends and

secure with #10-16 x 3/4” self-drilling screws.

Figure 10

Roof Assembly Joints

Control Wiring Assembly at Section Splits (All Unit

Sizes) (Reference Figure 11 )

1Sections Must be together

2Remove outer and inner raceway access covers

on both sections adjacent to shipping split.

3Remove top foam blocks in raceway.

4Route wire harness(es) under inner roof through

raceway and make connection to corresponding

wire harness.

5Replace foam blocks.

IMPORTANT: FOR PROPER UNIT OPERATION, THE

FOAM BLOCKS MUST BE INSTALLED IN THE

RACEWAY. FAILURE TO INSTALL THE FOAM BLOCKS

CAN RESULT IN CONDENSATE MANAGEMENT

PROBLEMS.

6Remove backing from inner access cover tape

and replace inner access cover.

7Remove backing from outer access cover tape

and replace outer access cover.

Unit Sizes 50-100

Roof Joint Strip

Cross Cover

Outer Roof Panel Tape

Butyl

Installation and Maintenance 19

Figure 11

Control Wiring Assembly

Roof Assembly at Section Splits (All Unit Sizes)

1Apply two rows of butyl tape at the roof seams,

covering the hole pattern.

2Align the roof panels together at the seams and

bring the two sections together. Secure the roof

panels in place with 5/16 X 3/4” screws and 5/16”

nuts.

3Slide the roof joint strip along the flat flange

formed by the joined roof panels, allowing 4”hang

on the ends.

(For Unit Sizes 3 - 40 when the roof joint strip is in

two pieces):

Apply a piece of butyl tape where the

strips come together and place a cover directly

over the tape. Then slide the two strips on the roof

panels as shown in

Figure 12

5Crimp down the two overhanging ends and

secure with #10-16 x 3/4” sheet metal screws.

Figure 12

Roof Assembly at Section Splits

Base Assembly

1Slide the 1/2” threaded rod through the hole in

each of the two joined base sections as shown.

2Install two flat washers, lockwasher, and 1/2” nut

at each rod end. Tighten both nuts.

3Install the flashing piece on the base assembly.

Secure in place with two #10-16 x 3/4” sheet

metal screws.

4Repeat steps 1 - 3 for the base assembly on the

other side of the unit.

Figure 13

Joining Base Assembly

Panel Assembly

1Leaving the paper backing on the tape, apply

butyl tape (tape side down) along the length of the

panel seam.

Inner Access Cover

Outer Access Cover

Foam Block

Wire Harness

Tape

Outer Roof Panel

Cover

Roof Joint Strip (in 2 Pieces)

Unit Sizes 3-40

Base Sections

Flashing

Threaded Rod

Flat Washers,

and 1/2” Nut

Lockwasher

20 CLCH-IM-16A

NOTE: THE SEAM CAP SHOULD BE CUT TO SIZE TO

COVER THE SEAM AND TAPE.

2Install the seam cap directly over the seam and

tape. Attach using #10-16 x 3/4” screws through

all predrilled holes in the cap.

3Caulk the gap between the top of the seam cap

and the bottom of the raceway.

Figure 14

Panel Assembly

Hood (Back and Side) Installation

Inlet hoods should be installed after the unit has

been set in place. They should not be stacked on the

unit as it is being hoisted. Mounting hardware and

caulking tape for the inlet hoods are located inside

the unit. For installation complete the following:

NOTE: THE HOOD ASSEMBLY SHOULD BE

SUPPORTED BY CHAINS, SPREADER BAR, OR

OTHER MEANS (SEE LIFTING INSTRUCTIONS

SECTION) WHEN INSTALLED TO THE UNIT.

MOUNTING TAPE AND HARDWARE ARE LOCATED

INSIDE THE UNIT.

1Apply the 1” butyl tape in a strip around the

perimeter of the hood.

2Using the lifting lugs, hoist the hood and center it

over the panel opening as shown in.

3Attach the hood to the unit with the 1/4-20 self-

drilling screws provided. Use ALL holes drilled in

the attachment flanges.

4Attach the two hood angle supports (when

provided) to the hood at one end and the bracket

on the unit as shown. Secure with 5/16” lock bolts

and lock nuts and #10-3/4 self-drilling screws.

Figure 15

Hood and Pipe Cabinet Installation

Butyl Tape

Raceway

Outer Panel

Base

Seam Cap

#10 Screw

Butyl Tape

Hood

Angle Support

#10 Screw

Installation and Maintenance 21

Pipe Cabinet (Chase) Installation

Installation of the cabinet will be different depending

on the extent of the piping installation. Follow the

appropriate instructions below.

INSTALLATION OF THE PIPE CHASE CABINET

REQUIRES ASSEMBLY OF THE CURB AND

INSTALLING THE CABINET TO BOTH THE CURB AND

THE UNIT AS DESCRIBED BELOW.

THE PIPE CABINET SHOULD BE SUPPORTED BY

CHAINS, SPREADER BAR, OR OTHER MEANS (SEE

LIFTING INSTRUCTIONS SECTION) WHEN

INSTALLING.

MOUNTING TAPE AND HARDWARE ARE LOCATED

INSIDE THE UNIT.

1Assemble the pipe cabinet curb and attach to the

roof or mounting surface.

If piping is not already run through the roof, follow

steps 2 through 5 only.

First remove the paper

backing from the butyl tape on the Z bar and pipe

chase side panels. (A gasket should already be in

place from the curb installation.) Set the cabinet

on top of the curb.

Figure 16

Pipe Cabinet Installation

3Attach the Z bar to the unit side panel with #10

self-drilling screws

(Figure 16)

4Attach the Z bar to the gutter with #10 screws.

NOTE: USE ALL HOLES DRILLED IN THE

ATTACHMENT FLANGES.

5Attach the pipe cabinet side (attachment) flanges

to the unit panel with #10 screws.

If piping is already run through the roof, follow

steps 6 through 13

. First remove the Z bar from

the pipe cabinet.

7Remove the paper backing from the butyl tape on

the Z bar and set the Z bar on top of the gutter

8Attach the Z bar to the unit side panel with #10

screws.

9Attach the Z bar to the gutter with #10 screws.

10 Remove the paper backing from the butyl tape on

the pipe chase side panels. Set the cabinet on top

of the curb

(Figure 17)

Figure 17

Pipe Cabinet Attachment

NOTE: USE ALL HOLES DRILLED IN THE

ATTACHMENT FLANGES.

11 Attach the pipe cabinet side flanges to the unit

panel with #10 screws.

12 Attach the pipe cabinet base rail to the Z bar with

bolts provided.

13 Apply caulk between the Z bar, the cabinet side

flanges, the base and around the drain connection

hole.

Z Bar

Z Bar Attachment

Angle

Pipe Cabinet

Base Rail Gutter

Gutter

Unit Side Panel

Panel Removed

to Show Z Bar

Attachment

Flange

22 CLCH-IM-16A

Component Installation Requirements

The T-Series Climate Changer is extremely versatile

and the assembled unit is a complete air handling

system. Each section may have installation

requirements that will affect the performance of the

unit.

High Efficiency Bag and Cartridge Filter Section

The Bag and Cartridge Filter sections can be used as

either a pre-filter section, a Final Filter section or

both. This is determined by placement in relation to

the fan.

Filter Installation

NOTE: CARTRIDGE AND BAG FILTERS PROVIDED BY

TRANE ARE FITTED WITH A 7/8” HEADER THAT FITS

IN THE FILTER TRACK. IF USING FILTERS SUPPLIED

BY ANOTHER MANUFACTURER, FILTERS SHOULD

BE PURCHASED WITH A 7/8” HEADER. IN SOME

CASES IT MAY BE NECESSARY TO GASKET THE

LOCALLY PURCHASED FILTERS TO INSURE A GOOD

AIR SEAL.

FILTERS SHOULD BE INSTALLED WHEN THE UNIT IS

SET. THIS WILL PROTECT INTERNAL COMPONENTS

SUCH AS THE UNIT’S HEATING AND COOLING COILS.

Trane recommends the use of disposable pre-filters

with high efficiency filters. Disposable pre-filters slide

into the mounting tracks just ahead of the bag/

cartridge filters.

WARNING

Pressurized Cabinet!

Disconnect all electric power

before opening door. Failure to

disconnect power before servicing

can cause severe personal injury.

1Disconnect the power to the unit.

2Open the filter section access door.

3Remove the adjustable block-off from the filter

track.

4Slide the filters into the tracks. Note that bag filters

must be installed with the pleats in the vertical

plane.

5Slide the adjustable block-offs into the filter track.

The block-off is intended to make a seal when the

access door is closed. It is adjustable and may

require a few changes to insure a proper seal.

6Close the access door and confirm that there is a

good seal of the filter track block-off against the

access door.

Fan Section

The Fan section can be configured as either draw-

thru or blow-thru. Review the submittals and unit

tagging prior to assembly.

The fan and motor assembly are internally isolated.

The fan and motor bases are bolted to four spring

isolators (see

Figure 19

). The isolators are secured

to the fan section support base. Four (4) shipping tie-

downs are bolted adjacent to the isolators between

the fan isolation base and the support frame.

The shipping tie-downs secure the isolation base to

the support assembly to prevent any damage to the

fan section during shipment of the air handler. The

shipping spacers must be removed prior to unit

operation unless the unit is to be externally isolated.

Installation and Maintenance 23

Figure 18

Shipping Spacer

Unit Isolation

Review the mechanical specifications and determine

the type of isolation to be used prior to removing the

shipping tie-downs. Remove the tie-downs only if the

factory provided isolation is to be used. If external

isolation is intended, review the portion of this

manual titled “External Isolation.”

Internal Isolation

The T-Series Climate Changer Fan section is

internally isolated. The unit ships with the internal

isolation base secured to prevent damage to the fan

and motor assembly during shipment. To activate the

isolation, remove the shipping tie-downs.

Shipping Tie-down Removal

There are four types of shipping tie-downs used to

secure the isolation base:

qSizes 3 - 8 use a 3/8”x1” pipe. (See

Figure 18

qSizes 10 - 30, except plug fans, use washers with

a bolt. (See

Figure 18

qSizes 35 - 50, except plug fans, use a tie-down

bolt and shim. (See

Figure 18

qSize 66 -100 and plug fans use a tie-down angle

and bolt. (See

Figure 19

Tie-Down Removal, Sizes 3-8 Tie-Down Removal, Sizes 10-50

Spring Tie-Down

Flat Washers

Flat Washer

Spring

Bolt

Spacer

24 CLCH-IM-16A

Figure 19

Shipping Angle and Isolator Tie-down Removal for Unit Sizes 66, 80 and 100 (Includes Plug Fans)

Remove the shipping tie-downs per the following

instructions:

1Shipping tie-downs are located at each corner of

the isolation base. Access for removal of shipping

spacer is available through the fan module access

doors.

2Remove the bolt. This will release the isolator and

make it possible to remove the pipe or spacer.

Isolator Adjustment

Once the shipping tie-downs are removed and the

internal isolation is released, it may be necessary to

adjust the isolators to achieve the proper operation

height of the fan and motor isolation base.

The isolators are bolted between the fan and motor

isolation base. There are five designs based on unit

size and fan type. Specific isolator clearances are

listed in

Table 23

. The measurement is taken

between the top of the floor panel (or support

channel on sizes 66-100) and the bottom of the

isolation base channel for all sizes.

Angle, Isolator Tie-Down

(Four Required)

Screw, Lockwasher and Hex Nut

(Four per Angle)

Table 23

Isolator Minimum Clearance Adjustments (in)

Unit Size Fan Type Isolator Type Req’d

Clearance

3-8

FC Rubber 1.0

3-8

FC Spring 1.0

10-30

FC Rubber 0.5

10-30

FC and BI Spring 0.5

21-50

Plug Spring 0.5

35-50

FC & AF Spring 0.5

66-100

FC, AF & Plug Spring 1.0

Installation and Maintenance 25

6HW8S

Once the T-Series Climate Changer is assembled

and installed, attention must be directed to individual

components for proper operation.

Dampers

(Including filter mixing sections, mixing sections, face

and bypass dampers and Traq dampers)

Before installing the Mixing sections fitted with filter

racks, be sure adequate clearance is provided to

open the access doors and install the filters. Filter

installation is explained in the section titled “Filter

Installation.”

Figure 20

Typical Mixing Box Configuration (sizes 3-100)s

actuators. The actuators should be sized according

to the torques given in

Table 24

NOTE: MIXING SECTIONS, AND FACE AND BYPASS

DAMPERS ARE DESIGNED, FOR THE DAMPER

ACTUATORS TO BE DIRECT COUPLED AND

INSTALLED IN THE AIR STREAM. IF OTHER

PROVISIONS ARE REQUIRED, MODIFICATIONS TO

THE SECTION WILL BE THE RESPONSIBILITY OF THE

INSTALLING CONTRACTOR.

Rods, Operators and Settings

The T-Series Climate Changer is available with

factory mounted controls or end devices. If the unit is

not ordered with controls or end devices, it is the

responsibility of the installer to provide and install the

Dampers are factory installed and adjusted. There

are three damper blade configurations available:

parallel blade, opposed blade, and Traq dampers.

Opposed and Parallel Dampers

Opposed and parallel dampers in units size 3

through 100 have an internal jack-shaft. See

Figure

. A 90° jack shaft rotation gives a 95° blade travel.

Figure 21

Typical Internal Face and Bypass Configuration

Open

26 CLCH-IM-16A

Table 24

Damper Torque at 1 in wg, Air Pressure Drop in lb-in

Unit

Size

Mixing

Box

(Back and

Bottom)

Internal

Face and

Bypass Face

Damper

Economizer

Exhaust

Side Mixing

Box

38109 6

614 15 14 9

816 24 19 12

10 38 41 25 16

12 43 44 33 19

14 44 59 35 23

17 65 64 45 26

21 66 79 53 30

25 85 95 62 36

30 101 112 65 44

35 138 90 95 52

40 148 100 106 60

50 162 136 144 76

66 218 201 181 103

80 245 230 224 122

100 307 291 284 151

Table 25

Torque and Force Required to Operate Inlet Vanes (FC, BI,

and AF Fans) in lb-in

Unit

Size Fan

Size

Fan Outlet Velocity

2000 FPM 3000 FPM

Open

(Torque) Close

(Torque) Open

(Torque) Close

(Torque)

9 FC N/A N/A N/A N/A

12 FC 10.0 3.5 22.5 7.8

10 FC 5.7 2.9 19.6 6.5

13 FC 10.9 3.9 24.5 8.7

12 FC 10.0 3.5 22.5 7.8

13 FC 10.9 3.9 24.5 8.7

15 FC 14.1 5.0 31.9 11.4

13BI 38.0 N/A 40.0 N/A

15 FC 14.1 5.0 31.9 11.4

16 FC 18.0 6.4 40.5 14.4

15 BI 38.0 N/A 40.0 N/A

16 FC 18.0 6.4 40.5 14.4

18 FC 23.1 8.3 52.2 18.6

16 BI 44.0 N/A 50.0 N/A

18 FC 23.1 8.3 52.2 18.6

20 FC 24.0 9.0 54.0 19.5

18 BI 54.0 N/A 60.0 N/A

20 FC 24.0 9.5 54.0 19.5

22 FC 25.0 9.5 56.0 21.0

20 BI 66.0 N/A 74.0 N/A

22 FC 25.0 9.5 56.0 21.0

25, 30

25 FC 26.5 10.0 59.7 22.5

22 BI 90.0 N/A 100.0 N/A

27 fc 115 46 200 104

25 FC 26 1 59 22

24 FC 31 7 70 17

30 FC 150 65 220 120

27 FC 115 46 200 104

27 AF 46 11 103 25

33 FC 215 100 310 180

30 FC 150 65 220 120

30 AF 62 15 142 35

33 FC 215 100 310 180

36 AF 113 27 256 63

33 AF 84 20 189 46

40 AF 100 62 216 140

36 AF 113 27 256 63

33 AF 84 20 189 46

44 AF 124 80 278 181

100

40 AF 100 62 216 140

36 AF 113 27 256 63

Table 25

Torque and Force Required to Operate Inlet Vanes (FC, BI,

and AF Fans) in lb-in

Unit

Size Fan

Size

Fan Outlet Velocity

2000 FPM 3000 FPM

Open

(Torque) Close

(Torque) Open

(Torque) Close

(Torque)

Installation and Maintenance 27

Traq Dampers

Traq dampers are fitted in mixing sections in several

possible configurations. These low leak dampers

modulate and measure air flow.

Each Traq damper section is supplied with a factory-

mounted ventilation control module (VCM) on the

interior of the mixing box. The VCM has an input

terminal for power and an output terminal for air

velocity. (See

Figure 22

Traq Damper Terminal Connections.

The actuators, factory-mounted or field-supplied, are

separately wired and controlled by a PCM or other

building logic.

Figure 23

illustrates the typical quick

connect scheme.

Figure 23

Typical Quick Connects with Wiring Identification

VCM (Transducer) Calibration

The VCM has an auto-zero function that recalibrates

the transducer once every minute.

Input Power Signal

The only input signal the VCM needs is the 24 VAC

power connected to terminals TB5 and TB6.

Output Velocity Signal

The 2 - 10 VDC linear output signal from the VCM

represents air velocity. This voltage can be converted

to represent cfm or L/s using the formula and

Table

following. For example, if the VCM on a Size 21

T-Series Climate Changer has a 10-volt signal, it

would represent 16650 cfm (7859 L/s) through the

Traq damper. If this voltage is 6 volts, air flow through

the Traq damper would be 8325 cfm (3930 L/s).

Using the formulas

cfm = k (cfm @ 10V) [volts-2/8]

L/s = k (L/s @ 10V) [volts-2/8], and tables following

VCM

Velocity (2-10 VDC)

GND

24 VAC

GND

1TB1-3

1TB1-4

1TB1-5

1TB1-6

TSC Size cfm @ 10V L/s @ 10V

2304 1087

4609 2175

6913 3263

10900 5145

16650 7859

10900 5145

24970 11786

34630 16345

46200 21806

57820 27291

100

69270 32695

28 CLCH-IM-16A

For Traq Dampers, use the following table.

Altitude can be adjusted for using the following

factors:

Inlet Guide Vanes

Inlet guide vanes can be provided with factory

mounted actuator motors when ordered with factory

mounted controls or end devices. If actuators are not

ordered factory mounted, it is the responsibility of the

contractor to provided the actuator and all mounting

hardware.

The Inlet guide vanes are designed for the actuators

to be internally mounted in the fan section. Size the

actuators based on operating torque requirements.

NOTE: TO PROVIDE EVEN TORQUE DISTRIBUTION

AND RELIABLE VANE TRACKING, IT IS

RECOMMENDED THAT TWO EQUALLY SIZED

ACTUATORS BE MOUNTED ON EACH SIDE OF THE

FAN HOUSING FOR UNIT SIZES 35, 50, 66, 80, AND

100.

BEFORE OPERATION, INSPECT THE VANE

ASSEMBLY FOR FREEDOM OF MOVEMENT. IF

RESISTANCE IS ABOVE THE TORQUES GIVEN IN

TABLE 25 CHECK THE ASSEMBLY FOR ANY BINDING

OR MISALIGNMENT. DO NOT FORCE THE VANES.

Duct Connections

All duct connections to the T-Series Climate Changer

should be installed in accordance with the standards

of the National Fire Protection Association(NFPA) for

installing of air conditioning and ventilating systems

other than residence type (NFPA 90A), and

residence type warm air heating and air conditioning

systems (NFPA 90B).

See unit submittal documentation for additional duct

mounting information.

To ensure the highest fan efficiency, duct turns and

transitions must be made carefully minimizing air

friction losses and turbulence. Proper duct work

Table 26

VCM Voltage Versus Airflow - Traq Dampers (at Sea Level)

TSC Size

Side Installation Back Installation

cfm @ 10V L/s @ 10V cfm @ 10V L/s @ 10V

4609 2175 2304 1088

4609 2175 4609 2175

7400 3493 6913 3263

7400 3493 11100 5239

9218 4351 11100 5239

9218 4351 11563 5458

14800 6986 16965 8007

14800 6986 17344 8186

23126 10915 24970 11786

23091 10899 25447 12011

23126 10915 34636 16348

33929 16014 46181 21797

46181 21797 57727 27247

100

50894 24022 69272 32696

Elevation (ft) “k” Elevation (ft) “k”

Sea Level

1.000

6000

0.897

1000

0.982

7000

0.876

2000

0.964

8000

0.860

3000

0.949

9000

0.846

4000

0.930

10000

0.825

5000

0.914

Installation and Maintenance 29

installation, as outlined by such organizations as

SMACNA (Sheet Metal and Air Conditioning

Contractors National Association, Inc.) should be

adhered to.

Fan Discharge Connections

When using lined duct, the insulation should not

obstruct the discharge opening. (See

Figure 24

Connections made directly to the discharge opening

of the fan should have a minimum of 3 fan diameters

of straight duct before any turns or transitions. The

first turn of the connection should be in the same

direction as the fan rotation. The air that the fan

discharges into the duct is extremely turbulent and

requires some length of duct to stabilize. Abrupt

changes in duct work directly off the fan discharge

will affect fan performance.

Damper Sections

Standard damper sections include mixing sections,

filter mixing sections, face damper sections, internal

face and bypass sections, and economizer sections.

Duct work attached to the standard damper sections

should be sized to fit the opening of the damper. This

information is provided in the submittals. When using

lined duct, ensure that the insulation does not

obstruct the damper opening. (See

Figure 24

Typical Section with Duct Flat/Flange Connections

Traq Dampers

Traq dampers are installed in mixing sections. Size

the duct connection to attach to the specified portion

on the face of the section. (See

Figure 25

Traq Damper Duct Connections

Uninsulated Cut

Airflow

Section

Flat Connection

Insulated Duct

Section

Flat Connection

Airflow

Traq Damper

Mixing Box

HdInlet Duct

Radius Elbow

(Sweep)

Traq Damper

Mixing Box

d = 1 hydraulic duct diameter = 2 x W x H

________

W + H

Mitered Corner

30 CLCH-IM-16A

Discharge Plenum

Discharge plenum sections are available with or

without openings. Sections with openings have a

framed opening that can be used to secure the duct

to the frames. If the duct is lined, it is important that

the insulation does not obstruct the opening of the

section.

Miscellaneous Sections

Miscellaneous sections include access sections, coil

sections, fan sections and intake sections.

If the duct is lined, it is important that the insulation

does not obstruct the opening of the section.

Internal Face and Bypass

Duct connections for internal face and bypass

damper sections are similar to the miscellaneous

sections. Duct work can be attached directly to this

frame.

Drain Pan

Piping

Condensate Drain Pan Connections

CAUTION

Failure to provide adequate con-

densate piping may result in water

damage to the equipment and or

building.

Threaded condensate drain connections are

provided on only one side of the coil section. Pitch

the connection lines horizontal or downward toward

an open drain. Trane recommends installing a plug to

facilitate cleaning of the trap.

IMPORTANT: PROPER TRAPPING OF THE COOLING

COIL CONDENSATE DRAIN LINES IS NECESSARY

FOR PROPER CONDENSATE MANAGEMENT.

IMPROPER TRAPPING CAN RESULT IN STANDING

WATER INSIDE THE UNIT OR WET INTERIOR

SURFACES THAT CAN CAUSE UNPLEASANT ODORS

AND SERIOUS HEALTH-RELATED INDOOR AIR

QUALITY PROBLEMS.

It is essential that the drain pan condensate trap be

deep enough and of the correct design to ensure a

water seal in the trap while allowing the condensate

pan to drain. Insufficient depth or incorrect design

can cause the drain pan to overflow.

NOTES: THE DRAIN CONNECTION SIZE IS 1” NPT

EXTERNAL FOR UNIT SIZES 3 THROUGH 30; 1-1/2

NPT EXTERNAL FOR UNIT SIZES 35, 40, 50; 1-1/4”

INTERNAL THREADS ON SIZES 66, 80, 100.

DRAIN PANS MUST BE PRIMED AT START-UP TO

OPERATE PROPERLY.

Installation and Maintenance 31

Figure 26

Drain Pan Trapping for Section under Negative Pressure

Figure 27

Drain Pan Trapping for Section under Positive Pressure

Negative Pressure Section

Trap the drain pan as illustrated in

Figure 26

, which

also illustrates the proper piping as well as the

operation of the trap. Use the formula given in

Figure

to determine the correct minimum depth for the

condensate trap.

Positive Pressure Section

The positive pressure section requires a different

design than the negative pressure trap. Refer to

Figure 27

and the formula provided to determine the

minimum trap depth.

3C - Normal Operation

H= (1" for each 1" of

maximum negative

static pressure) + 1"

J= half of H

L= H + J + Pipe Diameter + Insulation

H = (1” for each 1” of maximum negative

pressure) + 1”

J = 1/2 H

L = H + J + Pipe Diameter + Insulation

Normal Operation

2C - Normal Operation

K= min. 1/2"

H= 1/2" plus maximum

total static pressure

K = min. 1/2”

H = 1/2” plus maximum total static

pressure

32 CLCH-IM-16A

Units With More Than One Drain Pan

With the T-Series Climate Changer, each section can

be ordered with or without a drain pan. When more

than one section has a drain pan, you must trap each

section individually. Connecting all drains to a

common line with only one trap will result in

condensate retention, and possible water damage to

the air handler or adjoining space.

If a section has a drain pan for cleaning purposes

only, it does not need a trap; however a cap or shut

off valve should be installed on the drain connection.

Only sections handling condensate, such as a

cooling coil section or eliminator section, require a

trap.

Figure 28

through

Figure 37

are examples of

typical installations.

Coil Piping And Connections

See

Table 27

through

Table 29

for connection sizes.

For supply, vent and drain connections, refer to

Figure 28

through

Figure 37

NOTE: DRAIN AND VENT CONNECTIONS ARE

PROVIDED AS STANDARD ON UW, UU, DD, AND D

COILS ONLY. ALL OTHERS, IF REQUIRED, MUST BE

FIELD INSTALLED.

NOTE: DRAIN AND VENT CONNECTIONS ON THE UU

AND UW COILS ARE RECESSED. IF EXTENDED

DRAINS AND VENTS ARE REQUIRED, THEY MUST BE

FIELD PROVIDED.

General Coil Piping Recommendations

Proper installation, piping and trapping is necessary

to ensure satisfactory coil operation and to prevent

operational damage.

qSupport all piping independently of the coils.

qProvide swing joints or flexible fittings on all

connections that are adjacent to heating coils in

order to absorb thermal expansion and

contraction strains.

qIf ordered with factory mounted controls, install

the control valves. The valves ship separately in

the unit. The contractor should supply the pipe

nipples, couplings, etc.for installation.

NOTE: WHEN USING ELECTRONIC VALVE

ACTUATORS ON CHILLED WATER VALVES, THE

VALVE SHOULD BE MOUNTED ABOVE THE

HORIZONTAL POSITION TO PREVENT COLLECTION

OF CONDENSATE IN THE ACTUATOR ELECTRONIC

CIRCUITS AND SUBSEQUENT ACTUATOR FAILURE.

WHEN USING ELECTRONIC VALVE ACTUATORS ON

HOT WATER OR STEAM COILS, THE ACTUATOR

SHOULD BE INSTALLED APPROXIMATELY 45

DEGREES FROM VERTICAL. VERTICAL

INSTALLATION OF A VALVE ACTUATOR ON A HOT

WATER OR STEAM COIL WILL EXPOSE THE

ACTUATOR TO HIGH TEMPERATURES, RESULTING

IN ACTUATOR FAILURE.

THE EXTERNAL CABINET IS ONLY SUFFICIENTLY

SIZED FOR HOUSING COIL PIPING. ALL VALVES AND

VALVE ACTUATORS MUST BE LOCATED

ELSEWHERE.

For best results, The Trane Company recommends

that a short pipe nipple be used on the coil headers

prior to making any welded flange or welded elbow

type connections.

IMPORTANT: TEFLON TAPE OR PIPING COMPOUND

SHOULD NOT BE USED FOR ANY FIELD

CONNECTIONS BECAUSE ITS HIGH LUBRICITY MAY

ALLOW CONNECTIONS TO BE OVER-TIGHTENED,

RESULTING IN DAMAGE TO THE COIL HEADER.

NOTE: USE A BACK-UP WRENCH WHEN ATTACHING

PIPING TO COILS WITH TUBE HEADER

CONSTRUCTION TO PREVENT DAMAGE TO THE COIL

HEADER. DO NOT USE BRASS CONNECTORS. BRASS

DISTORTS EASILY AND COULD CAUSE CONNECTION

LEAKS.

When attaching the piping to the coil header, make

the connection only tight enough to prevent leaks.

Maximum recommended torque is 200 pound-feet.

Use pipe sealer on all thread connections.

After completing the piping connections, use mastic

to seal between the pipe and casing before insulating

the pipe.

Table 27

Shipping Coil Water and Steam Connection Sizes

Coil Type Header Height Supply Return Drain/Vent

W, WA 18, 24, 30, 33 2-1/2 2-1/2 1/2

W 42, 48, 54 2-1/2 2-1/2 1/2

D, DD, WD, K 18, 24, 30, 33 2-1/2 2-1/2 1/2

P2 18, 24, 30 3/4 3/4 1/2

Installation and Maintenance 33

P4 18, 24, 30 1 1 1/2

P8 18, 24, 30 1-1/4 1-1/4 1/2

WC 18 1 1 1/2

WC 24 1-1/4 1-1/4 1/2

WC 30, 33 2-1/2 1-1/2 1/2

NS 18 2 1 1

NS 24 2-1/2 1-1/4 1-1/4

NS 30, 33 3 1-1/4 1-1/4

Table 27

Shipping Coil Water and Steam Connection Sizes

Coil Type Header Height Supply Return Drain/Vent

Table 28

UF Refrigerant Coil Connections (Inches)

Unit

Size

Header

Height

Rows Dist.

Tube

No.

Circuits

Circuiting 1 Distributor 2 Distributors 4 Distributors

Liquid Suction Liquid Suction Liquid Suction

3 21 4, 6, 8 1/4 16 Full 1-1/8 1-5/8

3/16 16 1-1/8 1-5/8

4, 6 1/4 8 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 8 1-1/8 1-5/8 5/8 1-3/8

4 1/4 4 Qtr. 7/8 1-3/8 7/8 1-3/8

3/16 4 5/8 1-3/8 5/8 1-3/8

6 23 4, 6, 8 1/4 18 Full 1-1/8 1-5/8

3/16 18 1-1/8 1-5/8

4, 6 1/4 9 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 9 1-1/8 1-5/8 Note 1 1-3/8

4 1/4 4 Qtr. 7/8 1-3/8 7/8 1-3/8

3/16 4 5/8 1-3/8 5/8 1-3/8

8,10 27 4, 6, 8 1/4 21 Full Note 2 1-5/8

3/16 21 1 1/8 1-5/8

4, 6 1/4 10 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 10 1-1/8 1-5/8 7/8 1-3/8

4 1/4 5 Qtr. 7/8 1-3/8 7/8 1-3/8

3/16 5 7/8 1-3/8 5/8 1-3/8

12 32 4, 6, 8 1/4 25 Full 1-3/8 1-5/8

3/16 25 1-1/8 1-5/8

4, 6 1/4 12 Half 1-3/8 1-5/8 1-1/8 1-3/8

3/16 12 1-1/8 1-5/8 7/8 1-3/8

4 1/4 6 Qtr. 1-1/8 1-5/8 7/8 1-3/8

3/16 6 7/8 1-3/8 5/8 1-3/8

14 35 4, 6, 8 1/4 27 Full 1-3/8 1-5/8

3/16 27 1 1/8 1-5/8

4, 6 1/4 13 Half 1-3/8 1-5/8 1 1/8 1-3/8

3/16 13 1-1/8 1-5/8 7/8 1-3/8

17 37 4, 6, 8 1/4 29 Full 1-1/8 Note 3

3/16 29 Note 4 Note 3

4, 6 1/4 14 Half 1-1/8 1-3/8

3/16 14 7/8 1-3/8

34 CLCH-IM-16A

Notes:

Number of connections - Size (Inches)

1. 1- 5/8, 1- 7/8

2. 1-1 1/8 and 1-1 3/8

3. 3-1 3/8 and 1-1 5/8

4. 3-7/8 and 1-1 1/8

5. 3-5/8 and 1-7/8

Notes:

Number of connections - Size (Inches):

1. 2-7/8, 2-1-1/8

2. 6-1 3/8 and 2-1-5/8

3. 6-7/8 and 2-1-1/8

4. 6-5/8 and 2-7/8

21 45 4, 6, 8 1/4 35 Full 1-1/8 1-5/8

3/16 35 1-1/8 1-5/8

4, 6 1/4 17 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 17 1-1/8 1-5/8 Note 5 1-3/8

25,30 51 4, 6, 8 1/4 40 Full 1-1/8 1-5/8

3/16 40 1 1/8 1-5/8

4, 6 1/4 20 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 20 1-1/8 1-5/8 7/8 1-3/8

Table 28

UF Refrigerant Coil Connections (Inches)

Unit

Size

Header

Height

Rows Dist.

Tube

No.

Circuits

Circuiting 1 Distributor 2 Distributors 4 Distributors

Liquid Suction Liquid Suction Liquid Suction

Table 29

UF Refrigerant Coil Connections (Inches)

Unit

Size

Header

Height

Rows Dist.

Tube

No.

Circuits

Circuiting 2 Distributors 4 Distributors 8 Distributors

Liquid Suction Liquid Suction Liquid Suction

35,40 57 4, 6, 8 1/4 45 Full 1-3/8 1-5/8

3/16 45 1-1/8 1-5/8

4, 6 1/4 22 Half 1-3/8 1-5/8 Note 1 1-3/8

3/16 22 1-1/8 1-5/8 7/8 1-3/8

50 2-32 4, 6, 8 1/4 50 Full 1-3/8 1-5/8

3/16 50 1-1/8 1-5/8

4, 6 1/4 24 Half 1-3/8 1-5/8 1-1/8 1-3/8

3/16 24 1-1/8 1-5/8 7/8 1-3/8

4 1/4 12 Qtr. 1-1/8 1-3/8 7/8 1-3/8

3/16 12 1-1/8 1-3/8 5/8 1-3/8

66 2-37 4, 6, 8 1/4 58 Full 1-1/8 Note 2

3/16 58 Note 3 Note 2

4 1/4 29 Half 1-1/8 1-3/8

3/16 29 7/8 1-3/8

80 2-45 4, 6, 8 1/4 70 Full 1-1/8 1-5/8

3/16 70 1-1/8 1-5/8

4 1/4 35 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 35 1-1/8 1-5/8 Note 4 1-3/8

100 2-51 4, 6, 8 1/4 80 Full 1-1/8 1-5/8

3/16 80 1-1/8 1-5/8

4, 6 1/4 40 Half 1-1/8 1-5/8 7/8 1-3/8

3/16 40 1-1/8 1-5/8 7/8 1-3/8

Installation and Maintenance 35

Figure 28

Coil Type UW 2-Row RH and LH Small Coil Section

Connections with Drain and Vent Locations

Base

Line

Left Hand Right Hand

AIR

FLOW

AIR

FLOW

3/8” NPT Ext Drain

3/8” NPT Ext Vent

R NPT (EXT) Return R.H.

R NPT (EXT) Supply L.H.

R NPT (EXT) Supply R.H.

R NPT (EXT) Return L.H.

Note: External connections fit through casing side

Table 30

2-Row UW Coil Dimensions

Unit Size L A B C D F G R

311 10-9/16 13-11/16 4-1/2 6-1/2 21-5/8 2-5/8 1-1/2

611 12-1/16 14-3/16 4-1/2 6-1/2 24-5/8 2-5/8 1-1/2

811 13-15/16 17-1/16 4-1/2 6-1/2 26-3/8 2-5/8 1-1/2

10 11 13-15/16 17-1/16 4-1/2 6-1/2 26-3/8 2-5/8 1-1/2

12 11 16-7/16 19-9/16 4-1/4 6-3/4 33-3/8 2-5/8 2

14 11 13-15/16 20-13/16 4-1/4 6-3/4 25-7/8 2-5/8 2

17 11 18-15/16 22-1/16 4-1/4 6-3/4 38-3/8 2-5/8 2

21 11 20-5/8 25-3/4 3-3/4 7 42-1/8 2-5/8 2-1/2

25 11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2

30 11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2

35 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2

40 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2

36 CLCH-IM-16A

Figure 29

Coil Type UW 2-Row RH and LH Medium Coil Section Connections with Drain and Vent Location

Table 31

2-Row UW Coil Dimensions

Unit Size A B C D E F G J K M R

50 18-7/ 19-3 5-1/2 7-25/32 5-1/8 35-1/2 39-1/8 52-7/8 55-3/4 69-1/2 2

66 27-3/4 30-7/8 5-1/2 7-25/32 11-1/2 47-1/8 50-1/2 66-3/4 69-7/8 96-1/8 2

80 31-1/2 34-5/8 5-1/2 8-1/16 11-1/2 54-5/8 58 78 81-1/8 101-1/8 2-1/2

100 34-5/8 37-3/4 5-1/2 8-1/16 11-1/2 60-7/8 64-1/4 87-3/8 90-1/2 113-5/8 2-1/2

AIR

FLOW

AIR

FLOW

FGJ

1’7”

R NPT (EXT) Supply R.H.

R NPT (EXT) Return L.H.

R NPT (EXT) Return R.H.

R NPT (EXT) Supply L.H.

3/8” NPT Ext Vent

3/8” NPT Ext Drain

Left Hand Right Hand

Installation and Maintenance 37

Figure 30

Coil Type UU 4 and 8-Row and UW 4, 6, and 8-Row, RH and LH Medium Coil Connections with Drain and Vent Locations (Unit Sizes

3 - 40).

Table 32

2-Row UW Coil Dimensions

Unit Size L A B C D F G R

311 10-9/16 13-11/16 4-1/2 6-1/2 21-5/8 2-5/8 1-1/2

611 12-1/16 14-3/16 4-1/2 6-1/2 24-5/8 2-5/8 1-1/2

811 13-15/16 17-1/16 4-1/2 6-1/2 26-3/8 2-5/8 1-1/2

10 11 13-15/16 17-1/16 4-1/2 6-1/2 26-3/8 2-5/8 1-1/2

12 11 16-7/16 19-9/16 4-1/4 6-3/4 33-3/8 2-5/8 2

14 11 13-15/16 20-13/16 4-1/4 6-3/4 25-7/8 2-5/8 2

17 11 18-15/16 22-1/16 4-1/4 6-3/4 38-3/8 2-5/8 2

21 11 20-5/8 25-3/4 3-3/4 7 42-1/8 2-5/8 2-1/2

25 11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2

30 11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2

35 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2

40 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2

Base

Line

Left Hand Right Hand

AIR

FLOW

AIR

FLOW

3/8” NPT Ext Drain

3/8” NPT Ext Vent

R NPT (EXT) Return R.H.

R NPT (EXT) Supply L.H.

R NPT (EXT) Supply R.H.

R NPT (EXT) Return L.H.

38 CLCH-IM-16A

Table 33

UW 4, 6, and 8-Row, RH and LH Medium Coil Dimensions in inches

UW Coil Section

Unit

Size L A B C 4 ROW 6 ROW 8 ROW R

15-1/2 10-9/16 13-11/16 3-15/16 7-3/16 9-5/16 11-9/16 1-1/2

15-1/2 12-1/6 15-3/16 3-15/16 7-3/16 9-5/16 11-9/16 1-1/2

15-1/2 13-15/16 17-1/16 3-15/16 7-3/16 9-5/16 11-9/16 1-1/2

15-1/2 16-7/16 19-9/16 3-15/16 7-3/16 9-5/16 11-9/16 2

15-1/2 17-11/16 20-13/16 3-15/16 7-3/16 9-5/16 11-9/16 2

15-1/2 18-15/16 22-1/6 3-15/16 7-3/16 9-5/16 11-9/16 2

15-1/2 22-5/8 25-3/4 3-15/16 7-3/16 9-5/16 11-9/16 2-1/2

15-1/2 25-3/4 28-7/8 3-15/16 7-3/16 9-5/16 11-9/16 2-1/2

16 32-9/16 29-7/16 4-3/16 7-7/16 9-5/8 11-13/16 2-1/2

Table 34

UU 4 and 8-Row RH and LH Medium Coil Connection Dimensions in inches

UU Coil Section

Unit

Size C4 ROW 8 ROW R E F

N/A N/A N/A N/A 2-5/8 21-5/8

N/A N/A N/A N/A 2-5/8 24-5/8

N/A N/A N/A N/A 2-5/8 28-3/8

4-1/2 6-5/8 11 2-1/2 2-5/8 31-3/8

4-1/2 6-5/8 11 2-1/2 2-5/8 35-7/8

4-1/2 6-5/8 11 2-1/2 2-5/8 38-3/8

4-1/2 6-5/8 11 2-1/2 2-5/8 42-1/4

4-1/2 6-5/8 11 2-1/2 2-5/8 45-1/4

4-3/4 6-15/16 11-1/4 2-1/2 3-3/16 58-13/16

Installation and Maintenance 39

Figure 31

Coil Type UU 4 and 8-Row & UW 4, 6, and 8-Row RH and LH Medium Coil Section Connections (Unit Sizes 50 - 100) with Drain and

Vent Location

AIR

FLOW

AIR

FLOW

FGJ

1’7”

R NPT (EXT) Supply R.H.

R NPT (EXT) Return L.H.

R NPT (EXT) Return R.H.

R NPT (EXT) Supply L.H.

3/8” NPT Ext Vent

3/8” NPT Ext Drain

Left Hand Right Hand

Table 35

Coil Type UU 4 and 8-Row & UW 4, 6, and 8-Row RH and LH Medium Coil Section Connections Dimensions in inches

Unit Size A B E F G J K M R

50 18-3/4 21-7/8 60 35-5/8 39 52-3/4 55-7/8 69-5/8 2

66 27-3/4 30-7/8 11-1/2 47-1/8 50-1/2 66-3/4 69-7/8 74-1/8 2

80 31-1/2 34-5/8 11-1/2 54-5/8 58 42 81-1/8 101-1/8 2-1/2

100 34-11/16 37-3/4 11-1/2 60-11/16 64-1/4 87-3/8 90-7/16 113-5/8 2-1/2

Table 36

Coil Type UU 4 and 8-Row & UW 4, 6, and 8-Row RH and LH Medium Coil Drain and Vent Location Dimensions in inches

UW COIL SECTION UU COIL SECTION

D D

Unit Size C4 ROW 6 ROW 8 ROW C4 ROW 8 ROW

50 5-1/8 8-3/8 10-1/2 12-11/16 5-5/8 7-13/16 12-1/8

66 5-1/8 8-3/8 10-1/2 12-11/16 5-5/8 7-13/16 12-1/8

80 5-1/ (130.2) 8-3/8 10-1/2 12-11/16 5-5/8 7-13/16 12-1/8

100 5-1/8 8-3/8 10-1/2 12-11/16 5-5/8 7-13/16 12-1/8

40 CLCH-IM-16A

Figure 32

Coil Type WC-24” Headers with Drain and Vent Locations

Figure 33

Coil Type P2, 18, 24” Headers with Drain and Vent Locations

AIR

FLOW

10-1/2”

12”

24-1/8”

25-1/2”

4” 2”

1-1/4” NPT (INT)

Return

1-1/4” NPT (INT)

Supply

Sq Hd Pipe Plug

1/2” NPT Drain

1/2” NPT Vent 1/2” NPT Vent

1/2” NPT Drain

Water Inlet

Water Outlet

Water Inlet

6”

AIR

FLOW

2, 4 Row 6 Row

Table 37

Coil Type P2, 18, 24” Headers Dimensions (in)

Header A

18 16.5

24 22.5

Installation and Maintenance 41

Figure 34

Coil Type P4, 18, 24” Headers with Drain and Vent Location

Figure 35

Coil Type P4, 18, 24” Headers with Drain and Vent Location (6 and 8 Row)

1/2” NPT Vent 1/2” NPT Vent

1/2” NPT Drain

Water Inlet

Water Outlet Water Outlet

Water Inlet

3”

AIR

FLOW

2 Row 4 Row

1.68”

0.18”

Table 38

Coil Type P4, 18, 24” Headers Dimensions (2-Row) in inches

Header A B

18 10.5 6

24 13.5 9

Table 39

Coil Type P4, 18, 24” Headers Dimensions (4-Row) in inches

Header A B

18 7.5 9

24 10.5 12

1/2” NPT Vent 1/2” NPT Vent

1/2” NPT Drain

Water Inlet

Water Outlet

Water Inlet

3”

AIR

FLOW

6 Row 8 Row

7-1/2”

4-1/2”

1/2” NPT Drain

Table 40

Coil Type P4, 18, 24” Headers with Drain and Vent Location (8

Row) Dimensions in inches

Header A

18 16.5

24 22.5

42 CLCH-IM-16A

Figure 36

Coil Type P8, 18, 24” Headers with Drain and Vent Locations

Figure 37

Coil Type W with 18, 24, 30 and 33” Headers and with Drain and Vent Locations

1/2” NPT Vent 1/2” NPT Vent

1/2” NPT Drain Water Inlet

Water Outlet

Water Inlet

3”

AIR

FLOW

4 Row 8 Row

Table 41

Coil Type P8, 18, 24” Headers (4-Row) Dimensions in inches

Header ABCD

18 7.5 9 1.2 1.2

24 10.5 12 0 4.5

30 13.5 15 1.2 1.2

Table 42

Coil Type P8, 18, 24” Headers (8-Row) Dimensions in inches

Header A

18 16.5

24 22.5

30 28.5

2-1-2” NPT (INT) Return 1/2” NPT (INT) Vent

1/2” NPT (INT) Drain 2-1-2” NPT (INT) Supply 2-1-2” NPT (INT) Return

1/2” NPT (INT) Vent

1/2” NPT (INT) Drain

2-1-2” NPT (INT) Supply

Left Hand Coil Right Hand Coil

AIR

FLOW

AIR

FLOW

Installation and Maintenance 43

Note: Coil Connections available right or left hand (determined by

facing into air flow)

NOTE: THE PIPING PENETRATION INTO THE UNIT

CASING MUST BE SEALED BEFORE INSULATING.

FAILURE TO SEAL THE PENETRATION WILL PERMIT

INFILTRATION OF UNCONDITIONED AIR INTO THE

SECTION.

When subjected to freezing temperatures, provisions

must be made to protect coils that are not in use. See

section titled “Coil Winterization.”

NOTE: IF GLYCOL IS USED IN THE CHILLED WATER

OR HOT WATER SYSTEMS, BE SURE TO USE A

GLYCOL APPROVED FOR USE WITH COMMERCIAL

COOLING SYSTEMS AND COPPER TUBE COILS.

FOLLOW THE MANUFACTURER’S

RECOMMENDATIONS FOR WATER TREATMENT AND

MIX. FAILURE TO DO SO COULD AFFECT COIL

PERFORMANCE OR DAMAGE THE TUBES OR BRAZE

JOINTS.

Coils should be installed with field fitted drains and

vents to permit winterization of coils not in use, and

to assist in evacuating air from the chilled water

system during start-up.

CAUTION

Failure to properly protect coils

not in use during freezing temper-

atures may result in coil freeze-up

damage. Refer to the section titled

“Coil Winterization” for specific

instructions.

Steam Coil Piping

Figure 38

Typical Piping for Type NS Steam Coils and Horizontal Tubes

for Horizontal Airflow

Table 43

Coil Type W with 18, 24, 30 and 33” Headers and with Drain and Vent Locations Dimensions in inches

2-Row 4-Row 6-Row 8-Row

Coil Size A B C D E H F H F H F H F

18 6-3/4 9-3/4 19-1/2 8-1/4 11-1/4 6-1/2 4 9-1/2 7 12-1/2 10 15-1/2 13

24 9-3/4 12-3/4 25-1/2 11-1/4 14-1/4 6-1/2 4 9-1/2 7 12-1/2 10 15-1/2 13

30 12-3/4 15-3/4 31-1/2 14-1/4 17-1/4 6-1/2 4 9-1/2 7 12-1/2 10 15-1/2 13

33 14-1/4 17-1/4 34-1/2 15-3/4 18-3/4 6-1/2 4 9-1/2 7 12-1/2 10 15-1/2 13

Table 44

Coil Type W Coil Connections (Left and Right Hand) in inches

Header G

44.5

67.5

8 10.5

Code of System Components (Piping Diagrams

Float and thermostatic steam trap

Bucket steam trap

Gate valve

Automatic two-position (on-off) control valve

Automatic three-way control valve

Vacuum breaker

Check valve

Strainer

Automatic or manual air vent

44 CLCH-IM-16A

T-Series Climate Changers fitted with steam coils

have labeled holes for piping penetrations. Check

that the coil is installed correctly and that the unit

installation agrees with the submittals.

Refer to

Figure 38

for typical steam coil piping.

CAUTION

Condensate must flow freely from

the coil to prevent coil damage

from water hammer, unequal ther-

mal stresses, freeze-up damage

and corrosion. Complete the fol-

lowing recommendations to pre-

vent damage:

1Install a 1/2” 15 swing-check vacuum breaker in

the unused condensate return connection at the

top of the coil. This vacuum breaker should be

installed as close to the coil as possible.

2Vent the vacuum breaker to the atmosphere or

pipe it to the return main at the discharge side of

the steam trap.

NOTE: VACUUM BREAKER RELIEF IS MANDATORY

WHEN THE COIL IS CONTROLLED BY A MODULATING

STEAM SUPPLY OR TWO-POSITION (ON-OFF)

AUTOMATIC STEAM SUPPLY VALVE. VACUUM

BREAKER RELIEF IS ALSO RECOMMENDED WHEN

FACE AND BYPASS CONTROL IS USED.

CAUTION

The 1/2” 15 swing-check vacuum

breaker is recommended because

of the low cracking pressure of 3-

to 5-inches of water. Some other

vacuum breakers, such as spring

loaded ball-check vacuum break-

ers, have cracking pressures as

high as 17-inches of water. Substi-

tution of the 1/2” 15 swing-check

vacuum breaker could result in

damage to the coil by preventing

proper evacuation of condensate

from the coil.

The coil condensate return line must be piped full

size of the condensate trap connection, except for a

short nipple screwed directly into the coil headers

condensate return tapping. Do not bush or reduce

the coil return tapping size.

Proper steam trap selection and installation is

necessary for satisfactory coil performance and

service life. For installation, use the following steps:

1Install the steam trap discharge 12 inches below

the condensate return connection. 12 inches

provides sufficient hydrostatic head pressure to

overcome trap losses and ensures complete

condensate removal.

Use float and thermostatic traps with

atmospheric pressure gravity condensate

return, with automatic controls or where the

possibility of low pressure supply steam exists.

Float and thermostatic traps are recommended

because of gravity drain and continuous

discharge operation.

Use bucket traps ONLY when the supply

steam is not modulated and 25 psig or higher.

2Trap each coil separately to prevent holding up

condensate in one or more of the coils.

3Install strainers as close as possible to the inlet

side of the trap.

4If installing coils in series airflow, control each coil

bank independently with a automatic steam

control valve. Size the traps for each coil using the

capacity of the first coil in direction of airflow.

5Use a V-Port modulating valve to obtain gradual

modulation of the coil steam supply.

6Do not modulate systems with overhead or

pressurized returns unless the condensate is

drained by gravity into a receiver, vented to

atmosphere and returned to the condensate

pump.

7Slowly turn the steam on full for at least 10

minutes before opening the fresh air intake on

units with fresh air dampers.

8Pitch all supply and return steam piping down 1-

inch per 10 feet in the direction of the steam or

condensate flow.

9Do not drain the steam mains or take-offs through

the coils. Drain the mains ahead of the coils

through a steam trap to the return line.

10 Assure continuous condensate removal.

Overhead returns require 1 psig of pressure at the

steam trap discharge for each 2-foot elevation.

Installation and Maintenance 45

Hot Water Coil Piping

Figure 39

Typical Piping for Type WC Water Coil

Figure 40

Typical Piping for Type W Two-Row Water Coil

Refer to

Figure 39

through

Figure 42

for typical hot

water coil piping.

qCheck the coil for fin damage and straighten if

necessary.

qCheck that the coil is installed correctly with the

air flow in the same direction as indicated on the

nameplate or coil casing.

Code of System Components (Piping Diagrams

Float and thermostatic steam trap

Bucket steam trap

Gate valve

Automatic two-position (on-off) control valve

Automatic three-way control valve

Vacuum breaker

Check valve

Strainer

Automatic or manual air vent

46 CLCH-IM-16A

Figure 41

Typical Piping for Type DD Water Coil

Figure 42

Typical Piping for Type W Water Coil

Type W, WC, UA, UW, and UU hot water coils are

self-venting only if the water velocity exceeds 1.5 feet

per second (fps). If it is below 1.5 fps, vent by one of

the following methods:

1Install an air vent in the top pipe plug tapping of

the return header.

2Vent from the top return header horizontally to the

return piping when the return line rises and is

above the top of the coil. (See

Figure 41

through

Figure 42

CAUTION

Do not throttle or modulate the

water flow for coils that are

exposed to freezing temperatures.

Coil damage may result from coil

freeze-up.

3Install a drain line and shutoff valve in the supply

line near the coil.

Type W, D, K, UW and UU water coils are self-

venting only if the water velocity exceeds 1.2 fps.

Type DD coils are self venting only if the water

velocity exceeds 2.5 fps. If water velocity is below

these minimums vent by following one of the

followings methods:

qInstall an air vent in the top pipe plug tapping of

the return header

qVent from the top return header horizontally to the

return piping when the return line rises and is

above the top of the coil.

Refrigerant Coil Piping

Units that are UL listed shall not have refrigerant

temperatures and pressures exceeding that listed on

the coil nameplate.

For unit-installed refrigerant coils, packed elbows are

provided. Pipe connections can be made as shown in

Figure 43

Type F Refrigerant Coil with Packed Elbow

NOTE: TYPE F AND UF COILS HAVE BEEN

DEHYDRATED AND CHARGED WITH A HOLDING

CHARGE OF DRY NITROGEN. TO PREVENT LEAKS

AND SYSTEM CONTAMINATION, DO NOT BREAK THE

SEALS UNTIL THE COIL IS INSTALLED.

1Check that the coil is installed correctly with

airflow in the same direction as indicated on the

Perforated Plate

(Packed Elbow)

Panel

Distributor

Coil

Cut Here For Piping

NOTE: TYPE UF COILS ARE FITTED WITH 5/8”

TUBE AND CAP ASSEMBLY TO SEAL

VACUUM AND NITROGEN CHARGE.

DO NOT

USE CAP AND TUBE TO MAKE

REFRIGERATION CONNECTIONS.

Installation and Maintenance 47

coil nameplate or casing. The suction connection

must be at the bottom of the suction header.

2Follow accepted refrigeration piping practices and

safely precautions for typical refrigerant coil piping

and components. See

Figure 43

. Specific

recommendations are provided with the highside

components, including instructions for pressure-

testing, evacuation, and system charging.

General recommendations for component

selection and line sizing follow.

3Leak-test the entire refrigeration system after all

piping is complete.

4Charge the unit according to approximate weight

requirements, operating pressures and

superheat/subcooling measurements.

5Adjust the thermal expansion valve setting if

necessary.

General Refrigerant Piping

Recommendations

IMPORTANT: REFER TO THE NOTE ON THE INSIDE

FRONT COVER OF THIS MANUAL REGARDING

HANDLING OF REFRIGERANTS

Liquid Line Components

Trane recommends the use of a properly sized liquid

line filter-drier installed upstream from the expansion

valve and as close to the evaporator coil as possible.

Base filter-drier selection on a maximum pressure

drop of 2 psi at the design condition.

1Install moisture indicator/sight glass between the

expansion valve and filter-drier. The moisture

indicator/sight glass must be sized to match the

size of the liquid line at the thermal expansion

valve.

2Size liquid line shutoff valve with an access port

using the selected liquid line OD, and install it

close to the condenser.

3Minimize use of other valves, tube bends and

reducers since these items tend to increase

pressure drop and to reduce subcooling at the

expansion valve. Liquid line receivers, other than

those factory-installed, are not recommended.

4The Thermal Expansion Valve (TEV) must be

selected for proper size and capacity. The size of

the TEV should cover the full range of loadings.

Check that the valve will successfully operate at

the lightest load condition. Also consider the use

of a hot gas bypass valve when sizing the TEV.

Select expansion valves with external equalizer

connections, and those designed to operate

against a back pressure of 20 pounds per square

inch higher than actual evaporator pressure.

5Install the TEV directly on the coil liquid

connection (distributor) provided. The liquid

distributor must be in a true vertical position.

CAUTION

Disassemble the thermal expan-

sion valve before completing the

brazing connections. If necessary,

wrap the valve in a cool, wet cloth

while brazing. Failure to protect

the valve from high temperatures

may result in damage to the inter-

nal components.

48 CLCH-IM-16A

Suction Line Components

Install suction line pressure tap on the leaving side of

the evaporator coil near the TEV sensing bulb

location. Accurate superheat measurement and

thermal expansion valve adjustment demands that

suction pressure be measured near the evaporator

coil.

Usually, suction line filter-driers are only necessary

on systems that have experienced a severe

compressor motor burnout or other failure which

results in extremely high refrigerant temperature. Do

not leave this filter-drier in the suction line

permanently.

Liquid Line Sizing

All compressors have a Refrigerant Charge Limit

(RCL) that must not be exceeded. Since the RCL

and pressure drop are in direct conflict with each

other, Trane recommends that the liquid line be sized

as small as possible, while maintaining a low enough

pressure drop to ensure 5°F of subcooling at the

expansion valve.

Suction Line Sizing

Suction line tubes must be sized to maintain

refrigerant vapor velocities that are high enough to

ensure oil entertainment under all operating

conditions.

It is not necessary to pitch horizontal suction lines

toward the compressor when the refrigerant coil is

used with Trane condensing units that are designed

with a gas trap in the suction line just prior to the

compressor.

Installation and Maintenance 49

Wiring

WARNING

Disconnect electrical power

source before servicing the unit or

connecting electrical wires.

Failure to do so may result in per-

sonal injury or death from electrical

shock or entanglement in moving

parts. If the unit includes a factory-

mounted starter, use of the lockout/

tagout on the disconnect is required

while servicing the unit.

If the unit does not include a factory-mounted starter,

wiring to the unit fan motor must be provided by the

installer and must comply with all national and local

electrical codes. The installer must also furnish a

fused disconnect switch in compliance with national

and local electrical codes. Fan motors require

overload protective devices rated or selected in

compliance with the National Electric Code or

Canadian Electric Code. Specific unit and motor

connection diagrams are attached to the unit.

CAUTION

Use copper conductors only for

terminal connections. Use of alu-

minum or other type of wiring may

result in galvanic corrosion or

overheating and resultant equip-

ment damage.

Fan motors require motor overload protective

devices that are rated or selected in compliance with

the National Electric Code or Canadian Electric

Code. Specific unit and motor connection diagrams

are provided on the unit. If wiring directly to the

motor, a flexible connection at the motor to permit fan

belt adjustment should be provided. Fractional

horsepower motors may be factory connected to a

terminal box on the unit. If this construction is

provided, the installer should complete field wiring to

this connection box.

For a typical high voltage wiring schematic, see

Figure 44

following.

Connection of junction sections to unit end devices is

accomplished using the connections shown in

Figure

. See unit control drawings for specific connection

information.

For typical field wiring to units with DDC:

qProvide 120 VAC power for control. A dedicated

circuit is recommended. Units with a factory-

mounted starter or VFD do not require this circuit

as they are powered by the oversized control

transformer in the starter or VFD.

qIf unit ships in multiple sections, fasten quick

connects (

Figure 23

) before sections bolt

together.

qField mount and wire outside air sensor and

space sensor, if ordered.

50 CLCH-IM-16A

Figure 44

Typical High Voltage Wiring Schematic

Installation and Maintenance 51

,QVWDOODWLRQ&KHFNOLVW

The following is an abbreviated list of the detailed

installation information given in this manual and

should be used as an aid to ensure proper

installation. For complete instructions, refer to the

appropriate sections of the manual.

WARNING

Disconnect electrical power

source when servicing the unit.

Failure to do so may result in

injury or death from electrical

shock.

Secure drive sheaves before ser-

vicing the unit to ensure that rotor

cannot free-wheel. Failure to

secure drive sheaves can cause

severe personal injury.

1Examine the unit and components for material

shortage or shipping damage.

2Check unit location for unit dimensions, weights

and clearances.

3Rig each section properly and hoist it to its final

position.

4For split ship units with factory mounted controls,

connect color coded and numbered quick connect

plugs (reference

Figure 44

5Check that unit is installed level.

6Remove fan isolator tie-down bolt, if unit is not

externally isolated. See

Figure 18

and

Figure 19

7Inspect Inlet Guide Vanes and adjust if necessary.

8Install damper operator motors and connecting

linkage. Check damper operation and linkage

alignment.

9Install filters, if supplied.

10 Connect supply and return air ductwork.

11 Complete coil and condensate drain piping

connections.

12 Reference CLCH-IOP-1 for more details on the

installation of units with factory mounted controls.

13 Complete electrical connections to the unit and

PCM.

14 Leave the unit installation and maintenance

manual with the unit.

Prestart-Up Checks

Before operating the unit, complete the following

checks for safe and efficient operation.

WARNING

Disconnect electrical power

source when connecting or dis-

connecting electrical wires for test

procedures. Do not open service

access doors while the unit is

operating. Failure to exercise cau-

tion when completing test proce-

dures or while inspecting unit

operation may result in injury or

death from electrical shock, air

movement or rotating parts.

qRotate all fan wheels manually. Fans should turn

freely in the proper direction.

qCheck fan drive belt tension.

NOTE: IF T-SERIES CLIMATE CHANGER FAN IS

GOING TO OPERATE AT OTHER THAN DESIGN RPM

OR WITH A VARIABLE SPEED DRIVE NOT SUPPLIED

BY TRANE, THE UNIT VIBRATION LEVELS SHOULD

BE CHECKED AT THE NEW RPM AND THROUGHOUT

THE SPEED RANGE. RE-BALANCE OR CORRECT

VIBRATIONS AS NECESSARY.

qCheck fan hub set screws, sheave set screws and

bearing set screws for proper torque (

Table 45

Fan sheaves should be tight and aligned. Bearing

set screws should be aligned. See section titled

“Periodic Maintenance” for alignment instructions.

qInspect fan motor and bearings for proper

lubrication. Refer to

Table 49

for fan grease

recommendations. Contact the motor

Table 45

Fan Bearing Setscrew Torque Settings (lb-ft)

Screw Size Hex Size Torque

1/4

1/8 5.5-7.5

5/16

5/32 10.5-13.7

3/8

3/16 19-25

7/16

7/32 29-37.5

1/2

1/4 42-54.2

52 CLCH-IM-16A

representative for motor lubrication

recommendations.

qInspect electrical connections. They should be

clean and secure. Compare actual wiring with

specific diagrams on the unit.

qCheck piping and valve for leaks. Open or close

the valves to check operation. Drain lines should

be open.

qIf unit has a refrigerant coil, it must be charged,

leak-tested, and ready for operation according to

instructions provided with the condenser

equipment. Adjust superheat setting.

qCheck that air filters are in place and positioned

properly.

qRemove all foreign material from the drain pan

and check pan opening and condensate line for

obstructions.

qCheck unit for debris.

qClose and secure all unit access doors.

Installation and Maintenance 53

6WDUW8S

CAUTION

Inadequate lubrication of fan

motor or bearings may result in

premature bearing or motor fail-

ure.

1Inspect electrical connections. They should be

clean and secure. Compare actual wiring with

specific diagrams provided on the unit.

2Check piping and valves for leaks. Open or close

the valves to check for proper operation. Drain

lines should be open.

CAUTION

The use of untreated or improperly

treated water in unit coils may

cause scaling, erosion, corrosion,

algae, slime or other equipment

damage. Consult a qualified water

treatment specialist to determine if

water treatment is required. The

Trane Company assumes no

responsibility for equipment dam-

age caused by untreated or

improperly treated water.

3If equipped with a refrigerant coil, charge and

leak-test the unit to and ready it for operation

according to instructions provided with the

condenser equipment. Adjust superheat setting.

4Check that all air filters are in place and

positioned properly. Under Periodic Maintenance,

see section titled “Air Filters.”

NOTE: UL-LISTED UNITS REQUIRE A “TOOL-ONLY”

REMOVABLE LATCH ON ACCESS DOORS. THE

HANDLE TIE-DOWN SCREW SHIPPED WITH THE UNIT

MEETS THIS REQUIREMENT, AND SHOULD REMAIN

IN PLACE WHEN THE ACCESS DOOR IS CLOSED.

5Close and secure all unit access doors. Check

that the latch set screws are tight.

6Remove all foreign material from the drain pan

and check drain pan opening and condensate line

for obstructions.

7Check unit for debris.

8Reference CLCH-IOP-1 for more details on the

start-up of units with factory mounted controls.

Start-Up Procedures

After completing all prestart-up checks and

procedures, the unit may be started. The following

checks and adjustments should be made during

initial start-up:

WARNING

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

Disconnect electrical power

source when connecting or dis-

connecting electrical wires for test

procedures. Do not open service

access doors while the unit is

operating. Failure to exercise cau-

tion when completing test proce-

dures or while inspecting unit

operation may result in injury or

death from electrical shock, air

movement or rotating parts.

If the unit was stored for an extended period of time,

the following items should be checked before starting

the unit.

1Inspect motor bearings for moisture and rust.

Replace bearings if necessary and repack with

new grease.

2Check motor winding. An acceptable winding

resistance reading is from 6 meg-ohms to infinity.

If reading is less than 5 meg-ohms, winding

should be dried out in an oven or by a blower.

3Inspect the entire motor for rust and corrosion.

4Lubricate the motor as instructed in the section

titled “Periodic Maintenance,” or as indicated by

the maintenance tag on the motor.

54 CLCH-IM-16A

5Bump-start unit and observe the fan wheel for

proper rotation, as indicated by rotation arrow

located on fan housing.

6Measure the motor voltage and amperage on all

phases to ensure proper operation. The readings

should fall within the range given on the motor

nameplate.

Maximum allowable voltage imbalance is two

percent. Voltage imbalance is defined as 100 times

the sum of the deviation of the three voltages from

the average, divided by twice the average voltage.

For example, if the three measured voltages are 221,

230 and 227, the average voltage would be 226

volts.

The percent of voltage imbalance is then calculated:

100 X {[226-221] + [230-226] + [227-226]}

2 X 226

= 2.2% (Unacceptable)

In this example, 2.2 percent imbalance is not

acceptable and the power company should be

notified to correct it.

qCheck unit vibration if the fan speed is changed

more than 5% from the original designed rpm, or if

parts such as shafts, fan wheels, bearings, or

other drive components are replaced. Do not

exceed max. fan rpm.

qPay particular attention to any vibration, noise or

overheating of the motor and fan bearings.

(Bearings may run warm during break in.)

Excessive Vibration

EXCESSIVE VIBRATION MUST BE CORRECTED TO

PREVENT BEARING AND SHAFT DAMAGE. SEE THE

SECTION TITLED “TROUBLESHOOTING” FOR

DETAILS ON THE COMMON CAUSES FOR VIBRATION.

Determine Fan RPM

Fan rpm can be determined by using a strobe-type

tachometer, or revolution counter.

Sheave Alignment

Align the fan and motor sheaves by using a

straightedge. The straightedge must be long enough

to span the distance between the outside edges of

the sheaves. When the sheaves are aligned, the

straightedge will touch both sheaves at points A

through D to confirm that the shaft is parallel. For

uneven width sheaves, place a string in the center

groove of both sheaves and pull tight. Adjust

sheaves and tighten the sheave set screws to the

proper torque given in

Table 47

Figure 45

Proper Drive Alignment

WARNING

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

Fan Belt Alignment

Tighten the belts slightly and rotate the drive several

times.

On multiple belt drives, determine that the force of

deflection is approximately the same on each belt by

pushing each belt in an equal distance at a point

halfway from each sheave. If this force is not the

same for each belt, the motor and fan shaft are not

parallel. Realign as required.

After realignment, tighten the belts again to the

standard belt tensioning specifications. See the

following section.

Center Lines

Must Coincide Lines Must

Be Parallel

Fixed

Sheave

Fixed

Sheave

Straight

Edge Straigh

Edge

Adjustable

Sheave

Installation and Maintenance 55

Over-tensioning of belts can cause damage to

bearings, shafts, and drive components. Belts should

not squeal at start-up. Belt tension should be

rechecked after 8 hours, 24 hours, and 100 hours of

operation and monthly thereafter. When the belt is in

operation, the tight side of the belt should form a

straight line from sheave with only a slight bow on the

slack side.

Fan Belt Tension

NOTE: FAN BELT TENSION SHOULD BE CHECKED AT

LEAST THREE TIMES DURING THE FIRST DAYS OF

OPERATION, SINCE THERE IS A RAPID DECREASE IN

TENSION UNTIL BELTS SETTLE IN. REFER TO THE

DRIVE STICKER FOR PROPER TENSION.

Figure 46

Typical Drive Belt Label

WARNING

Disconnect electrical power

source and allow all rotating

equipment to stop completely

before inspecting or servicing the

unit. Failure to do so may result in

personal injury or death from elec-

trical shock or moving parts.

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

Figure 47

Fan Sheave Pitch Diameter

Figure 48

Belt Tension Measurement

Table 46

Values for K-Factor (Belt Cross Section Types)

Belt Type

ABCDE3L4L

K Factor

8 13408095 6 6

Belt Type

5L 3V 5V 8V AX BX CX DX

K Factor

6 6 12 25 11 18 54 101

56 CLCH-IM-16A

Figure 49

Belt Tensioner

Proper belt tension is required to ensure maximum

bearing and drive component life and is based on fan

brake horsepower requirement. Use

Table 47

to find

the proper belt tension and refer to the inset for an

example. To use the table, you must know:

qFan design brake horsepower (bhp) per belt (not

motor hp)

qFan rpm

qFan sheave pitch diameter, found by measuring

where the middle of the belt rides in the sheave

(See

Figure 47

)

qType of belt cross-section (stamped on the belt)

Installation and Maintenance 57

Table 47

Belt Tension

58 CLCH-IM-16A

As shown in the example of

Table 47

, the correct

tension (pounds force) is 9.6 pounds, at 1/2-inch

deflection. Deflection is determined by dividing the

belt span distance by 64, as shown in

Figure 48

To measure belt tension, use a belt tensiometer as

shown in

Figure 49

. Determine actual deflection by

depressing one belt with the belt tensiometer and

measuring the deflection relative to the other belts or

to belt line. Adjust the belt tension to the correct

pounds force and tighten all set screws to the proper

torque. (See

Table 47

For belt cross-section types not given in

Table 47

use the following equations to calculate correct belt

tension.

F = (T + K)/16

where

F = force measured in pounds at specific deflection.

K = constant determined by belt cross-section type.

T =24,750 (fan hp per belt)/ belt speed

Belt speed = ((fan pitch diameter)/12) X 3.1416 X

fan rpm

For example, given the following:

Motor sheave pitch diameter: 5.7 inches, eight groove

Fan sheave pitch diameter: 10.0 inches, eight groove

Fan horsepower: 2.4 bhp

Fan rpm: 1000 rpm

Belt type: C

Sheave span: 32 inches

Belt speed = (10/12) X 3.14 X 1000 = 2618

T = (24,750 X (24 bhp/2 belts)/2618 = 113.4 lb

F = (13.4 + 40)/16 = 9.6 lb.

Also, D =(Belt span (inches))/64 = 32/64 =.50 in.

Therefore, the belt tensiometer should read 11.5

pounds force at 15/16-inch deflection. This will yield

159.4 pounds force belt tension.

Belt tensions determined by using

Table 46

are

minimum values. The correct operating tension for a

V-belt drive is the lowest tension at which the belts

will not slip under the peak load conditions. It may be

necessary, however, to increase the tension of some

drives to reduce excessive belt flopping or to reduce

excessive start-up squealing.

NOTE: THERE IS A LABEL LOCATED ON THE

BEARING SUPPORT ON THE DRIVE SIDE OF THE

UNIT THAT LISTS ALL DRIVE PARTS AND THE

PROPER BELT TENSION FOR THE SPECIFIC DRIVE.

CAUTION

Do not over-tension the belts.

Excessive tension will reduce fan

and motor bearing life, accelerate

belt wear and possibly cause shaft

failure.

Installation and Maintenance 59

3HULRGLF0DLQWHQDQFH

The following checklist is provided as an abbreviated

guide to periodic maintenance. Detailed procedural

information is given after this checklist.

WARNING

Disconnect electrical power and

allow rotating parts to stop before

servicing the unit. Exercise cau-

tion if unit must be on for test or

maintenance procedures. Failure

to do so may result in injury or

death from electrical shock or

moving parts.

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

After 48 Hours Operation

Belts have acquired their permanent stretch.

Readjust but do not over-tighten. See section titled

“Fan Belt Tension” for instructions.

Weekly

Observe unit weekly for any change in running

condition and unusual noise.

Every Month

qCheck air filters. Clean or replace if clogged or

dirty. Coat permanent filters with oil after cleaning.

Change bag filters when pressure drop is 1-inch

W.G.

qRelubricate fan bearings if operating conditions

include high speeds, moist or dirty air, or high

temperatures.

qRelubricate motor bearings in accordance with

motor manufacturer’s recommendations if

operating conditions include high speeds, moist or

dirty air, or high temperatures.

qCheck and adjust fan belt tension.

Every Three to Six Months

qCheck fan bearing grease line connections. Lines

should be tight to the bearings.

qRelubricate fan bearings.

qCheck motor lubrication. Recommendations are

provided on the motor tag or on a unit sticker.

qCheck bearing and motor bracket bolt torque.

qAlign fan and motor sheaves. Tighten sheave set

screws to the proper torque.

qCheck and adjust fan belt tension.

qTighten electrical connections.

qInspect coils for dirt build-up or coil freeze-up.

Every Year

qInspection the unit casing for corrosion. If damage

is found, clean and repaint the surface with a rust-

resistant primer and vinyl chlorinated lacquer.

qClean the fan wheels and fan shaft. Remove rust

with an emery cloth and apply a coat of LPS #3 or

an equivalent.

qInspect the condensate drain pan and drain line,

remove sludge or foreign materials that might

obstruct proper drainage. Remove obstacles.

Table 48

Minimum Hex Head Bolt Torque in lb-ft

Grade 5 Bolts

Size (inches*) Thread

Designation Min. Torque

1/4, 20

UNC 6

1/4, 28

UNF 7

5/16, 18

UNC 14

5/16, 24

UNF 16

3/8, 16

UNC 24

3/8, 24

UNF 28

7/16, 14

UNC 42

7/16, 20

UNF 45

1/2, 13

UNC 69

1/2, 20

UNF 83

9/16, 12

UNC 99

60 CLCH-IM-16A

*NOTE: Soft metric conversions not acceptable for screw and hex

sizes

qCheck damper linkages, set screws and blade

adjustment. Clean, but do not lubricate, the nylon

damper rod bushings.

qClean damper operators.

qInspect the control and power box wiring for

secure connections and insulation.

qRotate the fan wheel and check for obstructions in

the fan housing. The wheel should not rub on the

fan housing. Adjust the center if necessary and

tighten wheel set screws to the proper torque.

qCheck condition of gasketing and insulation

around unit, door and dampers.

qExamine flex connections for cracks or leaks.

Repair or replace damaged material.

Drain Pans

Inspecting and Cleaning Drain Pans

For units with sloped drain pans

, if evidence of

standing water or condensate overflow exists,

identify and remedy the cause immediately. (Refer to

the troubleshooting section for possible causes and

solutions.) If microbial growth (mold) in the drain pan

is observed, clean the pan immediately using the

following procedure:

7Disconnect all electrical power to the unit.

8Don the appropriate personal protective

equipment (PPE).

9Remove all standing water.

10 Use a scraper or other tools to remove any solid

matter. Remove solid matter with a vacuum

device that uses high efficiency particulate

arrestance (HEPA) filters with a minimum

efficiency of 99.97% at 0.3 micron particle size.

11 Thoroughly clean the contaminated area with a

mild bleach and water solution or an EPA-

approved sanitizer specifically designed for HVAC

use. Carefully follow the sanitizer manufacturer’s

instructions regarding the use of the product.

12 Immediately rinse the drain pan thoroughly with

fresh water to prevent potential corrosion from the

cleaning solution of the drain pan and drain line

components.

13 Allow the unit to dry thoroughly before putting the

system back into service.

14 Determine and correct the cause of the microbial

contamination.

15 Be careful that the contaminated material does

not contact other areas of the unit or building.

Properly dispose of all contaminated materials

and cleaning solution.

IMPORTANT: STANDING WATER IN DRAIN PANS CAN

PROMOTE MICROBIAL GROWTH (MOLD) THAT MAY

CAUSE UNPLEASANT ODORS AND SERIOUS

HEALTH-RELATED INDOOR AIR QUALITY

PROBLEMS. IF MOLD IS FOUND, IT MUST BE

REMOVED IMMEDIATELY AND THAT PORTION OF

THE UNIT PROPERLY CLEANED AND SANITIZED.

Air Filters

Catalog data tables provide filter size, type and

quantity.

Throwaway Filters

To replace throwaway filters, install new filters with

the directional arrows pointing in direction of airflow.

NOTE: FILTERS MUST HAVE AN AIRTIGHT SEAL TO

PREVENT AIR BYPASS. IF USING OTHER THAN

TRANE-SUPPLIED FILTERS, APPLY FOAM

GASKETING TO THE VERTICAL EDGES OF THE

FILTER.

Permanent Filters

To clean permanent filters, wash under a stream of

water to remove dirt and lint. Remove oil filter with a

wash of mild alkali solution. Rinse in clean, hot water

and allow to dry. Coat both sides of the filter by

immersing or spraying it with Air Maze Filter Lote W

or an equivalent. Allow to drain and dry for about 12

hours.

9/16, 18

UNF 118

5/8, 11

UNC 150

5/8, 18

UNF 176

3/4, 10

UNC 254

3/4, 16

UNF 301

7/8, 9

UNC 358

7/8, 14

UNF 422

1, 8

UNC 500

1, 14

UNF 602

Table 48

Minimum Hex Head Bolt Torque in lb-ft

Grade 5 Bolts

Size (inches*) Thread

Designation Min. Torque

Installation and Maintenance 61

Cartridge or Bag Filters

To install cartridge or bag filters, complete the

following:

WARNING

Disconnect electrical power

source, and allow all rotating

equipment to stop before inspect-

ing or servicing the unit. Failure to

do so may result in personal injury

or death from electrical shock or

rotating parts.

1Open the filter section access door and remove

the filters and block-offs from their installed

position.

2Keeping the bag filters folded, slide each filter into

the filter rack, pushing them tightly against the

unit. Pleats should be in the vertical position.

3If using the optional pre-filters, slide them into the

appropriate filter rack.

4If fixed and adjustable block-offs are provided with

the unit, slide the fixed block-offs into the filter

track before the adjustable block-off. The

adjustable block-off should always be installed

last, next to the access door.

5Close and secure the access door. If the door can

be closed without compressing the filter, adjust

the block-off by loosening its screws and position

it to provide an airtight seal.

Fans

Inspecting and Cleaning Fans

Fan sections of air handlers should be inspected

every six months at a minimum or more frequently if

operating experience dictates. Accumulated dirt and

organic matter on the interior surfaces of fans should

be cleaned immediately. The suggested procedure

for cleaning these surfaces is:

1Disconnect all electrical power to the unit.

2Don the appropriate personal protective

equipment (PPE).

3Use a portable vacuum with HEPA filtration to

remove the loose dirt and organic matter. The

filter should be 99.97% efficient at 0.3 micron

particle size.

4If no microbial growth (mold) exists, thoroughly

clean the fan and associated components with an

industrial cleaning solution. Carefully follow the

cleaning solution manufacturers instructions

regarding use of their product.

5If microbial growth (mold) is present, remove the

contamination (Step 2) and thoroughly clean the

affected area with an EPA-approved sanitizer

specifically designed for HVAC use. Carefully

follow the sanitizer manufacturers instructions

regarding the use of the product.

6Rinse the affected surfaces thoroughly with fresh

water and a fresh sponge to prevent potential

corrosion of metal surfaces.

7Allow the unit to dry completely before putting it

back into service.

8Use caution to assure that any contaminated

material does not contact other areas of the unit

or building. Properly dispose of all

contaminated materials and cleaning solution.

IMPORTANT: IF MICROBIAL GROWTH (MOLD) WAS

FOUND, THE CAUSE OF THE CONTAMINATION MUST

BE DETERMINED AND ACTION TAKEN TO ASSURE IT

DOES NOT RECUR.

Fan Bearings and Motors

Bearing Set screw Alignment

Align bearing set screws as illustrated in

Figure 50

Reference

Table 45

for bearing set screw torque.

62 CLCH-IM-16A

Figure 50

Bearing Setscrew Alignment

Fan Bearing Lubrication

Note: Greases used should conform to NLGI No. 2 penetration.

Fan bearings should be lubricated with a lithium base

grease which conforms to NLGI Number 2 for

consistency. See

Table 49

and

Table 50

for

recommended lubricants and bearing grease

capacities.

CAUTION

Improper lubrication can result in

premature bearing failure.

Do not mix greases with different

bases within the bearing. This can

cause an audible squealing noise

that may be transmitted through

the system ductwork. Premature

bearing failure may result.

To lubricate the fan bearings, complete the following:

WARNING

Disconnect electrical power

source before servicing the unit. If

unit must be on for maintenance

procedures, exercise extreme cau-

tion. Failure to do so may result in

personal injury or death from elec-

trical shock or entanglement in

moving parts.

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

Set Screws (2)

Table 49

Recommendations for Grease-Lubricated Fan Bearings

Greasing Intervals

Operating Conditions -20

F to +140

F140

F to 200

Clean, Dry

3-6 months 1-3 months

Dirty, Dry

1-3 months 1-4 weeks

Dirty, Wet, High

Humid.

1-4 weeks 1-14 days

Recommended

Greases Recommended Operating Range

Texaco-Multi Fak #2

-20

F to +250

Shell Alvania #2

-20

F to +250

Mobil Mobilux #2

-20

F to +250

Exxon Unirex #2

-20

F to +250

Texaco Prem. RB

-20

F to +250

Mobil 532

-20

F to +250

Exxon Beacon

-65

F to +250

Keystone 84H

-40

F to +225

Shaft Size (In)

Max. Grease Cap. of Bearing (Oz.)

1/2 to 3/4

1/8

7/8 to 1-3/16

3/8

1-1/4 to 1-1/2

5/8

1-11/16 to 1-15/16

7/8

2 to 2-7/16

1-1/4

2-1/2 to 2-15/16

Installation and Maintenance 63

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

1Disconnect main power switch.

2Check grease lines for tight connections at the

grease fitting.

3Using a manual low pressure grease gun, add

grease until a light bead of grease appears at the

bearing grease seal. Turn the fan wheel manually

while adding grease.

Fan Motors

Inspect fan motors periodically for excessive

vibration or temperature. Operating conditions will

vary the frequency of inspection and lubrication.

Table 51

lists recommended motor greasing

intervals. Motor lubrication instructions are found on

the motor tag or nameplate. For a list of compatible

greases, see

Table 49

To relubricate the motor, consult the maintenance tag

provided by the vendor.

Refer to

Table 48

for minimum torque of motor

mounting and bearings bolts.

WARNING

Disconnect power source for

motor lubrication. Failure to do so

may result in injury or death.

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

Coil Cleaning

The frequency of required cleaning is dependent on

the operating hours of the system, filter maintenance

and efficiency and dirt load.

IMPORTANT: COILS BECOME EXTERNALLY FOULED

AS A RESULT OF NORMAL OPERATION. DIRT ON THE

SURFACE OF THE COIL REDUCES IT’S ABILITY TO

TRANSFER HEAT THAT CAN RESULT IN COMFORT

PROBLEMS, INCREASED RESISTANCE TO AIR FLOW

AND THUS INCREASED OPERATING ENERGY COSTS.

IF THE DIRT ON THE SURFACE OF THE COIL

BECOMES WET, SUCH AS COMMONLY OCCURS

WITH COOLING COILS, MICROBIAL GROWTH (MOLD)

CAN RESULT THAT MAY CAUSE UNPLEASANT

ODORS AND SERIOUS HEALTH-RELATED INDOOR

AIR QUALITY PROBLEMS.

Steam, hot water and chilled water coils

Steam, hot water and chilled water coils should be

kept clean to maintain maximum performance. If fins

become dirty, clean with steam and detergent, hot

water spray and detergent, or one of the

commercially available chemical coil cleaners. Rinse

coils thoroughly after cleaning.

WARNING

Follow all directions provided with

chemical cleaners to avoid per-

sonal injury and/or coil damage.

Commercially available chemical

cleaners may contain caustic or

hazardous agents.

Table 50

Fan Bearing Maximum Grease Capacity

Shaft Size in inches Capacity in fl. oz.

1/2 - 3/4

1/7

7/8 - 1-3/16

3/8

1-1/4 - 1-1/2

5/8

1-11/16 - 1-15/16

7/8

2 - 2-7/16

1-1/4

2-1/2 - 2-15/16

Table 51

Recommended Motor Greasing Schedule

Avg. Daily

Operating

Hours Avg.

Environment .3 to 7.5 HP

Motors 10 to 30 HP

Motors

8-16

Clean and

Dry

Every 5 years Every 3 years

12-24

Moderate Dirt

or Moisture

Every 2 years Every year

Any

Severe (very

dirty or high

temperatures)

Every 6

months

Every 3

months

64 CLCH-IM-16A

1Disconnect all electrical power to the unit.

2Don the appropriate personal protective

equipment (PPE).

3Gain access to the coil section of the unit (both

sides).

4Use a soft brush to remove loose debris from both

sides of the coil.

5Use a steam cleaning machine, starting from the

top of the coil and working downward. Clean the

leaving air side of the coil first, then the entering

air side. Use a block-off to prevent steam from

blowing through the coil and into a dry section of

the unit.

6Repeat step 5 as necessary.

7Confirm that the drain line is open following the

cleaning.

8Allow the unit to dry thoroughly before putting the

system back in service.

9Straighten any coil fins that may have been

damaged during the cleaning process with a fin

rake.

10 Replace all panels and parts and restore electrical

power to the unit.

11 Use caution to assure that any contaminated

material does not contact other areas of the unit

or building. Properly dispose of all

contaminated materials and cleaning solution.

Type K cooling coils

Type K cooling coils have removable headers for

cleaning. A small nylon or fiber brush may be used to

clean the tubes. After cleaning, flush with water.

When removing any header, replace the rubber

sealing gasket and be sure that it seats properly

when header is installed. If necessary, pull out

turbulators, clean the tubes and replace turbulators.

When header covers are replaced, apply washers

under the bolt heads. Bolts should be evenly

tightened to 50 pound-feet of torque.

Refrigerant coils

Refrigerant coils should be kept clean to maintain

maximum performance. If fins become dirty, clean

with cold water and detergent, or one of the

commercially available chemical coil cleaners. Rinse

coils thoroughly after cleaning.

CAUTION

Follow directions provided with

the cleaner to avoid coil damage.

WARNING

Never use steam or hot water to

clean a refrigerant coil. Dangerous

pressures may be built up by the

improper application of heat

resulting in equipment damage or

personal injury.

1Follow steps 1-4 from Steam and Water Coil

Cleaning procedure preceding.

2Mix a high quality coil cleaning detergent with

water according to the manufacturers instructions.

If the detergent is strongly alkaline after mixing

(PH 8.5 or higher), it must contain an inhibitor.

Carefully follow the detergent manufacturers

instructions on the use of the product.

3Place the mixed solution in a garden pump-up

sprayer or high pressure sprayer. If a high

pressure sprayer is used, note the following:

qMaintain a minimum nozzle spray angle of 15

degrees.

qSpray perpendicular to the coil face.

qProtect other areas of the air handler and internal

controls from contact with moisture or the

cleaning solution.

qKeep the nozzle at least 6 inches from the coil.

qDo not exceed 600 psi.

4Spray the leaving air side of the coil first, then the

entering air side. Use a block-off to prevent spray

from going through the coil and into a dry section

of the unit and/or system ductwork. Carefully

follow the cleaning solution manufactures usage

instructions.

5Thoroughly rinse both sides of the coil and the

drain pan with cool, clean water.

6Repeat steps 4 and 5 as necessary.

7Straighten any coil fins that may have been

damaged during the cleaning process with a fin

rake.

8Confirm that the drain line remains open following

the cleaning process.

Installation and Maintenance 65

9Replace all panels and parts and restore electrical

power to the unit.

10 Allow the unit to dry thoroughly before putting the

system back into service.

11 Use caution to assure that any contaminated

material does not contact other areas of the unit

or building. Properly dispose of all

contaminated materials and cleaning solution.

Coil Winterization

Provisions must be made to drain coils that are not in

use when subjected to freezing temperatures. Coil

type NS may be adequately drained in its pitched

position within the unit and the installer must provide

appropriate piping for adequate drainage.

Coil types UU, D, DD, (provided with drain and vent)

K, W, WC, and P can be adequately drained as

installed in their level position.

CAUTION

Failure to properly drain and vent

coils when not in use during freez-

ing temperatures may result in coil

freeze-up damage.

CAUTION

Use caution in removing header

plugs from P2, P4 and P8 coils.

Over torquing may result in

twisted tubes.

Type UW Coil - (Leveled/pitched— not fully

drainable)

Remove the vent and drain plugs and blow the coils

out as completely as possible with compressed air.

The coils should then be filled and drained several

times with full strength inhibited ethylene glycol, so

that it will mix thoroughly with the water retained in

the coil. Drain the coil out as completely as possible.

Type K Coils

To winterize Type K coils, remove the header covers.

If tubes are fouled, clean with nylon or fiber brush. To

ensure that no water will remain in the coil, do not

replace the header covers until the coils are put back

into service. When the coils are put back into service,

new gaskets must be used. When header covers are

replaced, apply washers under the bolt heads and

tighten bolts evenly to 50 pound-feet. Bolts should be

tightened beginning in the center and working toward

the outside.

66 CLCH-IM-16A

7URXEOHVKRRWLQJ

Use the table in this section to assist in identifying the

cause or causes of a malfunction in T-Series Climate

Changer operation. The column header

“

RECOMMENDED ACTION

” suggests repair

procedures.

NOTE: THIS TABLE IS INTENDED AS A DIAGNOSTIC

AID ONLY. FOR DETAILED REPAIR PROCEDURES,

CONTACT YOUR LOCAL TRANE SERVICE COMPANY.

WARNING

Disconnect electrical power

source and allow all rotating

equipment to stop completely

before inspecting or servicing the

unit. Failure to do so may result in

personal injury or death from elec-

trical shock or moving parts.

Disconnect electrical power prior

to access into a fan or ductwork.

Even when locked out electrically,

fans may cause injury or damage if

the impeller is subject to “wind-

milling.” The impeller should be

secured to physically restrict rota-

tional movement. Failure to secure

impeller can cause severe per-

sonal injury or death.

Table 52

T-Series Climate Changer Trouble Analysis

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

Bearing is excessively hot

First start after relubrication (Grease

distribution)

Allow machine to cool down and

restart.

Over-lubrication Clean surface of grease and purge.

Over tensioned belts Adjust belt tension.

No lubricant Apply lubricant. Check bearings for

damage.

Misaligned bearing Correct alignment. Check shaft level.

Motor fails to start

Blown fuse or open circuit breaker Replace fuse or reset circuit breaker.

Overload trip Check and reset overload.

Improper wiring or connections Check wiring with diagram supplied on

unit.

Improper current supply Compare actual supply power with

motor nameplate recommendations.

Contact power company for

adjustments.

Mechanical failure Check that motor and drive rotate

freely. Check bearing lubricant.

Motor stalls

Open phase Check line for an open phase.

Overloaded motor Reduce load or replace with larger

motor.

Low line voltage Check voltage across AC line. Correct

voltage if possible.

Excessive vibration

Poor alignment Align bearing set screws (Figure 50 ).

Loosen and retighten bearing set

screws.

Shipping spacers not removed Remove shipping spacers and/or

bolts. See Figure 18 and Figure 19 .

Over tensioned belts Adjust belt tension.

Misaligned drive Align drive.

Installation and Maintenance 67

Motor runs and then dies down

Partial loss of line voltage Check for loose connections.

Determine adequacy of main power

supply.

Stator shorts when motor warms up Replace stator.

Motor does not come up to

speed

Low voltage at motor terminals Check voltage across AC line and

correct voltage loss if possible.

Line wiring to motor too small Replace with larger sized wiring.

Motor overheats

Overloaded motor Reduce load or replace with a larger

motor.

Motor fan is clogged with dirt

preventing proper ventilation

Remove fan cover, clean fan and

replace cover.

Excessive motor noise

Motor mounting bolts loose Tighten motor mounting bolts.

Rigid coupling connections Replace with flexible connections.

Worn motor bearings Replace bearings and seals.

Fan rubbing on fan cover Remove interference in motor fan

housing.

Rapid motor bearing wear

Excessive overhung load due to

overtensioned drive

Check belt tension and overhung load.

Excessive overhung load due to a

small diameter motor sheave

Replace sheave with larger one.

Loose fan belt

Motor is poorly positioned Adjust belt tension.

Worn or damaged belt Replace belt or belt set. Check sheave

alignment.

Worn sheaves Replace sheaves.

Shorter belt life

Worn sheaves Replace sheaves.

Misaligned belt Realign drive with MVP sheave set at

mean pitch diameter.

Grease or oil on belts Check for leaky bearings. Clean belts

and sheaves.

Belt slipping Adjust tension.

Belts rubbing Remove obstruction or realign drive

for clearance.

Bearing noise

Poor alignment Loosen bearing set screws and realign

(See Figure 50 .)

Inadequate lubrication Grease bearing(s).

Low coil capacity

(Chilled water)

Air is bypassing coil Prevent bypass with block-offs.

Coil tubes are blocked Clean and unblock tubes.

Incorrect airflow Check fan operating conditions.

Incorrect gpm Check water pumps, valves and lines

for obstructions.

Incorrect water temperature Provide proper water temperature.

Low coil capacity (Refrigerant)

Air is bypassing coil Prevent bypass with block-offs.

Coil tubes are blocked Clean and unblock tubes.

Incorrect airflow Check fan operating conditions.

Expansion valve not operating Check sensing bulb location and TXV

operation.

Table 52

T-Series Climate Changer Trouble Analysis

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

68 CLCH-IM-16A

Poor refrigerant distribution Check for blockage in distributor and

tubes.

Drain pan is overflowing

Plugged drain line Clean drain line.

Unit not level Level unit.

Standing water in drain pan

Improper trap design Design trap for unit.

Excess dirt in unit

Missing filters Replace filters.

Filter bypass Reduce filter bypass.

Mold inside air handler

Standing water in drain pan See “Standing water” symptom.

Table 52

T-Series Climate Changer Trouble Analysis

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

Trane X39640516 01 T Series Climate Changer ® Central Station Air Handlers Installation And Maintenance PDF Manual (CLCH IM 16A) User To The Aa7b2f09 8f06 4c3e 92ee 72770f6ab1fb

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