Trane CLCH-IM-16A, T-Series Installation And Maintenance Manual

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T-Series Climate

Changer

Central

Station Air Handlers

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

Draw-Thru and Blow-Thru Unit Sizes 3, 6, 8, 10, 12, 14, 17, 21, 25, 30, 35, 40, 50, 66, 80, and 100

Since the Trane Com pany has a pol icy of con tinuous pro duct imp rovem ent, it r eserves the ri ght to chang e specifications and designs without notice. The installation and servicing equipment referred to into this booklet should be done by qualified experienced technicians.

Part No. X39640516-01

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Notice

Warning and Cautions

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 AIRCONDITIONING 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!

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.

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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

T-Series Climate Changer

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Trane T -Series Climate Changers ship as complete assemblies or sect ion al su bas semblies. Some assembly is required when the units ship as subassemblies.

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 medium, and high pressure classes with or without inlet guide vanes.

To insure fan stability, the unit ships with four (4) lockdown 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.

. Fans are available in low,

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

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°F.

° F (60°C).

Unit Nameplates

Each unit section is provided with a section nameplate (label). See includes type of section, section serial number, customer tagging information, section position and service model number.

Figure 1

. This nameplate

Figure 1 Unit Nameplate

Customer Furnished Tagging Information

Section Service Model Numbe r

Sales Order Number

Type of Section

Section Serial Number

Section Unit Number

Installation and Maintenance 1

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Each section of a T-Series Climate Changer is

CAUTION

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.

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.

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 actuat ors, dir ty filter switches, averaging temp er ature 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 factorymounted/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.

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).

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3 Keep 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.

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

1 Visually inspect components for any damage that

may have occurred during shipment.

NOTE: THE TRANE COMPANY IS NOT RESPONSIBLE FOR SHIPPING DAMAGE.

2 Check all access doors to confirm that the latches

and hinges are not damaged.

3 Check all coil connections to confirm they are

straight and undamaged.

4 Inspect the coils for damage to the fin surface or

coil connections.

5 Check all devices attached to the unit exterior and

confirm that they are not damaged.

6 Manually rotate the fan wheel to ensure free

movement of the shaft, bearings, and drive. Inspect the fan housing for any foreign objects.

7 Inspect 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.

8 If the unit was ordered with Factory Mounted

Controls, locate all sensors. These components will be shipped inside the control enclosure.

9 If the unit shipped in subassemblies, locate

assembly hardware. The necessary assembly hardware will be packaged inside the fan section or the mixing section.

4 Notify 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 requir es no spec ial prot ecti on 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.

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:

1 Make specific notation describing the damage on

the freight bill.

2 Report all claims of shipping damage to the

delivering carrier immediately.

Installation and Maintenance 3

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WARNING

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.

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

Never bolt (assemble) sections or sub-assemblies together before

Weights in this manual are approximate. Always testlift the unit section to check for proper balance and rigging before hoisting to the desired location.

rigging. Always rig subassemblies or sections as received from the factory.

Tab le 1 T-Series Section Weights (lb) - Unit Sizes 3 - 50

Trane Unit Size 3 6 8 10 12 14 17 21 25 30 35 40 50

Filter / Mixing Economizer Exhaust Air Blender Flat Filter Angled Filter Bag Filter Cartridge Filter Sm. Blank / Inspection Med Blank / Access M-L Blank / Access Large Blank / Access Small Coil Weight includes 2 row UW Med. Coil Weight includes 8 row UW M-L Coil Weight includes 10 row W Large Coil Weight includes 10 row W Moisture Eliminator Internal Face/Bypass Face Damper

225 232 270 367 393 443 490 526 624 687 933 1025 1148 314 377 419 582 637 677 740 827 902 1118 1291 1544 1785

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

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

71 84 91 109 122 130 140 157 164 177 235 249 365 154 199 232 242 261 290 312 338 355 389 545 590 684 189 248 281 285 323 372 426 511 579 632 698 752 852 143 181 213 218 235 266 284 317 334 368 494 538 621

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

62 75 80 95 101 105 113 125 132 143 169 181 269 N/A N/A N/A 161 171 179 192 212 221 241 334 364 429 105 137 164 218 232 243 261 289 361 393 541 584 662

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

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

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

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

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

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

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)

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Tab le 1 T-Series Section Weights (lb) - Unit Sizes 3 - 50

Trane Unit Size 3 6 8 10 12 14 17 21 25 30 35 40 50

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 Diffuser Discharge Plenum

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

74 91 98 114 122 130 143 163 173 192 293 322 445 92 118 135 195 204 209 224 252 318 337 472 511 571

Tab le 2 T-Series Section Weights (lb) - Unit Sizes 66 - 100

Trane Unit Size 66 80 100

Filter / Mixing Economizer Exhaust Air Blender Flat Filter Angled Filter Bag Filter Cartridge Filter Sm. Blank / Inspection Med Blank / Access M-L Blank / Access Large Blank / Access

1367 1511 1817 2147 2382 2984

464 506 572

1257 1386 1640

432 477 546 797 839 964

1046 1163 1414

761 798 911 252 262 288 307 319 350 472 491 538 775 870 1056

Small Coil Weight includes 2 row UW

Tab le 3 Inlet Guide Vane Weights (lb)

933 1040 1237

Trane Unit Size 66 80 100

Med. Coil Weight includes 8 row UW M-L Coil Weight includes 10 row W Large Coil Weight includes 10 row W Moisture Eliminator Internal Face/Bypass Face Damper Front Horiz Disch Fan Weight includes Type A fan Bottom Vert Disch Fan Weight includes Type A fan Diffuser Discharge Plenum

1850 2143 2608

3372 3884 4738

N/A N/A N/A 710 786 928 753 852 1002 753 852 1002

3621 4391 5141

913 1029 1257 651 769 928

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

Installation and Maintenance 5

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Tab le 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

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

ODP

General Purpose

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

TEFC NA

Energy Efficient

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

ODP

Energy Efficient

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

TEFC

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

Tab le 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

Tab le 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

6 CLCH-IM-16A

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Tab le 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

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

Tab le 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

Tab le 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

Installation and Maintenance 7

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Tab le 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

8 CLCH-IM-16A

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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

Installation and Maintenance 9

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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

12 1093 1401 1278 1268 1100

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

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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

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

Installation and Maintenance 11

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WARNING

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

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

Lifting Instructions

The Trane Company recommends that the contractor use spreader bars and slings to rig units and subassemblies (sections) as shown.

q Always assemble the unit at the installation site. q Always rig subassemblies or sections as they ship

from the factory.

q Make 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.

Follow good lifting practices before lifting the unit to include following instructions in this manual, estimating center of gravity,

1 Before lifting the unit, estimate the approximate

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.

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.

center of gravity and test lift the unit to determine balance and stability.

12 CLCH-IM-16A

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USE ALL OF THE LIFT LUGS PROVIDED.

NEVER STACK THE PIPE CABINET AND INLET HOODS ON THE UNIT AS THE UNIT IS BEING LIFTED.

2 Lift all sections individually using all lifting lugs

provided and shown in instructions for handling the inlet and exhaust hoods and pipe chase in paragraphs following.

3 Remove all wooden blocks before installing the

unit to the roof curb (see

4 After the sections are in place , assemble them

(see Unit Assembly).

Figure 4

Figure 5

. See specific

Lifting the External Pipe Cabinet (Chase)

CAUTION

Do not attach t he 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

lugs as shown.

. Attach the cables, chains or straps to lifting

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

. 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

Figure

Attach the pipe chase to the unit only after all sections are in place.

Figure 3 Pipe Cabinet Lifting

Rigging and spreader bar

not furnished by Trane

Recommended attachment to lifting lugs

Recommended attachment

to lift lugs

Installation and Maintenance 13

Page 17

Figure 4 Field Unit L ift i ng

Rigging and spreader bars not furnished by Trane

Figure 5 Shipping Block Removal

Recommended attachment

to lifting lugs

Remove ALL wooden blocks before installing unit to roof curb

14 CLCH-IM-16A

Page 18

,QVWDOODWLRQ

When preparing the unit site, consider the following: 1 Ensure that the site can support the total weight of

the unit. section weights.

Figure 6 Service Clearances

Table 1

and

Table 2

FanDrive

list approximate

Coil

2 Allow sufficient space for the recommended

service access. Refer to

Figure 6

for FC, BI and

AF fan wheels and for plug fans.

3 Confirm that the foundation of the mounting

platform is large enough to include the unit dimensions. Refer to unit submittals for specific dimensions.

Filter

Table 22 Service Clearances (in inches)

3 6 8 10 12 14 17 21 25 30 35 40 50

Unit

Size

Filter A

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

Coil

Removal B

Fan C Starter D

Table 22 Service Clearances (in inches)

Unit Size

66 80 100

Filter A

52 150 93 60 56 150 91 60 58 165 101 60

Coil

Removal B

Fan C Starte r D

The floor or foundation must be level for proper coil drainage and condensate flow.

4 Allow the proper height for condensate drain

requirements. Insufficient height may inhibit condensate drainage and result in flooding the unit.

5 Provide adequate lighting for maintenance

personnel to perform maintenance duties.

6 Provide permanent power outlets in close

proximity of the unit for installation and maintenance.

Installation and Maintenance 15

Page 19

8QLW$VVHPEO\

WARNING

CAUTION

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 fitup and sealing of the surfaces.

General

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 contains polyurethane insulation. Failure 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.

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

q Prepare the roof curb or pier mount and roof

q Check that the gasketing is intact and provides an

q Complete all ductwork, piping and electrical

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 thoroughly before contacting your Trane Company Representative to report missing hardware.

thru

Table 4

openings before hoisting the unit to the roof.

airtight seal with the unit base. Refer to the applicable roof curb installation manual.

connections only after mounting the unit. Refer to unit submittals.

for unit and accessory weights.

all

sections

Unit Assembly - All Sizes

Mounting

The internal sections of this unit containing electrical components

must not exceed 104o F temperature. Internal sections of the unit not containing electrical compo-

nents must not exceed 180o F temperature. 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

16 CLCH-IM-16A

If a unit arrives in sections, then each section must be individually hoist ed, 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

mounting.

and

Figure 8

for suggested pier/rail

Page 20

Figure 7 Pier Locations (Typical)

Locate one pier at each corner, as a minimum, directly u nderneath 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.

Piers

Figure 8 Side View of Unit with Two Shipping Splits

4’ Typ

Unit Supports for Pier Mounts

NOTE: PIERS BENEATH SHIPPING SPLITS MUST BE STRUCTURALLY SOUND TO SUPPORT THE WEIGHT OF THE UNIT

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 co nnecti ons .

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

Roof Panels

Installation and Maintenance 17

Joint Strip

Cross

Butyl Tape

(2 Rows)

Page 21

NOTE: THE BUTYL TAPE APPLIED THE ROOF

Unit Sizes 50-100

Roof Joint Strip

Cross Cover

Outer Roof Panel

Tape

Butyl

PANELS WILL COVER THE DRILLED HOLES.

1 Apply butyl tape along four roof panel seams

where they come together.

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.

2 Join the panels together at the seams and secure

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

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

joint and place the cross cover directly over it as shown in

Figure 10

4 Slide 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.

5 Crimp down the three overhanging ends and

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

Figure 10 Roof Assembly Joints

6 Remove backing from inner access cover tape

and replace inner access cover.

7 Remove backing from outer access co ver tape

and replace outer access cover.

Control Wiring Assembly at Section Splits (All Unit Sizes) (Reference Figure 11 )

1 Sections Must be together 2 Remove outer and inner raceway access covers

3 Remove top foam blocks in raceway. 4 Route wire harness(es) under inner roof through

5 Replace foam blocks.

18 CLCH-IM-16A

on both sections adjacent to shipping split.

raceway and make connection to corresponding wire harness.

Page 22

Figure 11 Control Wiring Assembly

Inner Access Cover

Outer Access Cover

Tape

Wire Harness

Foam Block

Roof Assembly at Section Splits (All Unit Sizes)

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

covering the hole pattern.

2 Align 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.

3 Slide 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

5 Crimp down the two overhanging ends and

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

Figure 12 Roof Assembly at Section Splits

Roof Joint Strip (in 2 Pieces)

Cover

Base Assembly

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

each of the two joined base sections as shown.

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

at each rod end. Tighten both nuts.

3 Install the flashing piece on the base assembly.

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

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

other side of the unit.

Figure 13 Joining Base Assembly

Flashing

Threaded Rod

Flat Washers,

Base Sections

Lockwasher

and 1/2” Nut

Panel Assembly

Outer Roof Panel

1 Leaving the paper backing on the tape, apply

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

Unit Sizes 3-40

Installation and Maintenance 19

panel seam.

Page 23

NOTE: THE SEAM CAP SHOULD BE CUT TO SIZE TO

Butyl Tape

Raceway

Outer Panel

Base

Seam Cap

#10 Screw

COVER THE SEAM AND TAPE.

2 Install the seam cap directly over the seam and

tape. Attach using #10-16 x 3/4” screws through all predrilled holes in the cap.

3 Caulk the gap between the top of the seam cap

and the bottom of the raceway.

Figure 14 Panel Assembly

Figure 15 Hood and Pipe Cabinet Installation

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.

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

perimeter of the hood.

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

over the panel opening as shown in.

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

drilling screws provided. Use ALL holes drilled in the attachment flanges.

4 Attach 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.

Angle Suppor t

Butyl Tape

Hood

#10 Screw

20 CLCH-IM-16A

Page 24

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.

1 Assemble 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.

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.

7 Remove the paper backing from the butyl tape on

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

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

screws.

9 Attach 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 Pipe Cabinet Attachment

(Figure 17)

Attachment

Flange

Panel Removed to Show Z Bar

Figure 16 Pipe Cabinet Installation

Unit Side Panel

Z Bar Attachment

Angle

Z Bar

Pipe Cabinet

Base Rail

Gutter

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

self-drilling screws

(Figure 16)

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.

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

NOTE: USE ALL HOLES DRILLED IN THE ATTACHMENT FLANGES.

5 Attach the pipe cabinet side (attachment) flanges

Installation and Maintenance 21

Page 25

Component Installation Requirements

WARNING

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.

6 Close 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 drawthru 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 to the fan section support base. Four (4) shipping tiedowns 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.

Figure 19

). The isolators are secured

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.

Pressurized Cabinet! Disconnect all electric power before opening door. Failure to disconnect power before servicing can cause severe personal injury.

1 Disconnect the power to the unit. 2 Open the filter section access door. 3 Remove the adjustable block-off from the filter

track.

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

must be installed with the pleats in the vertical plane.

5 Slide 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.

22 CLCH-IM-16A

Page 26

Figure 18 Shipping Spacer

Bolt

Spring

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

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

Tie-Down

Bolt

Flat Washer

Flat Washers

Spring

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. T o 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:

q Sizes 3 - 8 use a 3/8”x1” pipe. (See

Figure 18

q Sizes 10 - 30, except plug fans, use washers with

a bolt. (See

Figure 18

q Sizes 35 - 50, except plug fans, use a tie-down

bolt and shim. (See

Figure 18

q Size 66 -100 and plug fans use a tie-down angle

and bolt. (See

Installation and Maintenance 23

Figure 19

Page 27

Figure 19 Shipping Angle and Isolator Tie-down Removal for Unit Sizes 66, 80 and 100 (Includes Plug Fans)

Screw, Lockwasher and Hex Nut

(Four per Angle)

Angle, Isolator Tie-Down

(Four Required)

Remove the shipping tie-downs per the following instructions:

1 Shipping 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.

2 Remove 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.

Table 23 Isolator Minimum Clearance Adjustments (in)

Unit Size Fan Type Isolator Type

3-8 3-8 10-30 10-30 21-50 35-50 66-100

FC Rubber 1.0 FC Spring 1.0 FC Rubber 0.5

FC and BI Spring 0.5

Plug Spring 0.5

FC & AF Spring 0.5

FC, AF & Plug Spring 1.0

Req’d

Clearance

24 CLCH-IM-16A

Page 28

6HW8S

Once the T-Series Climate Changer is assembled and installed, attention must be directed to individual components for proper operation.

Figure 21 Typical Internal Face and Bypass Configuration

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

Open

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

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

Figure

Installation and Maintenance 25

Page 29

Table 24 Damper Torque at 1 in wg, Air Pressure Drop in lb-in

Mixing

Unit Size

100

Table 25 Torque and Force Required to Operate Inlet Vanes (FC, BI, and AF Fans) in lb-in

Unit

Size

3 6

Box

(Back and

Bottom)

8109 6

14 15 14 9

16 24 19 12

38 41 25 16

43 44 33 19

44 59 35 23

65 64 45 26

66 79 53 30

85 95 62 36

101 112 65 44

138 90 95 52

148 100 106 60

162 136 144 76

218 201 181 103

245 230 224 122

307 291 284 151

Fan

Size

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

Internal

Face and

Bypass

2000 FPM 3000 FPM

Open

(Torque)

Face

Damper

Fan Outlet Veloc ity

(Torque)

Economizer

Side Mixing

Open

(Torque)

Exhaust

Box

(Torque)

Table 25 Torque and Force Required to Operate Inlet Vanes (FC, BI, and AF Fans) in lb-in

Fan Outlet Veloc ity

2000 FPM 3000 FPM

Unit

Size

25, 30

100

Fan

Size

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 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 40 AF 100 62 216 140 36 AF 113 27 256 63

Open

(Torque)

Open

(Torque)

26 CLCH-IM-16A

Page 30

T raq Dampers

Traq dampers are fitted in mi xing sections in several possible configurations. These low leak dampers modulate and measure air flow.

Figure 22 Traq Damper Terminal Connections.

VCM

Each Traq damper section is supplied with a factorymounted 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 23 Typical Quick Connects with Wiring Identification

Figure 22

Velocity (2-10 VDC)

GND

24 VAC

GND

1TB1-3 1TB1-4

1TB1-5

1TB1-6

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.

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

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

Table

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

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

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

2304 1087 4609 2175 4609 2175

6913 3263 10900 5145 10900 5145 10900 5145 16650 7859 10900 5145 24970 11786 24970 11786 24970 11786 34630 16345 46200 21806 57820 27291 69270 32695

Installation and Maintenance 27

Page 31

For Traq Dampers, use the following table.

Table 26 VCM Voltage Versus Airflow - Traq Dampers (at Sea Level)

Side Installation Back Installation

TSC Size

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

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

4609 2175 2304 1088 4609 2175 4609 2175 4609 2175 4609 2175 7400 3493 6913 3263 7400 3493 11100 5239 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 50894 24022 69272 32696

Altitude can be adjusted for using the following factors:

Elevation (ft) “k” Elevation (ft) “k”

Sea Level 1000 2000 3000 4000 5000

1.000

0.982

0.964

0.949

0.930

0.914

6000 7000 8000 9000 10000

0.897

0.876

0.860

0.846

0.825

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

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.

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

28 CLCH-IM-16A

Page 32

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.

Figure 24 Typical Section with Duct Flat/Flange Connections

Uninsulat e d C ut

Section

Airflow

Flat Connection

Insulated Duct

Section

Airflow

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 25 Traq Damper Duct Connections

Traq Damper Mixing Box

Inlet Duct

Figure 24

Mitered Corner

Flat Connection

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

Traq Damper Mixing Box

Figure 25

Radius Elbow

(Sweep)

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

________

W + H

Installation and Maintenance 29

Page 33

Discharge Plenum

CAUTION

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

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.

Condensate Drain Pan Connections

Failure to provide adequate condensate 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.

30 CLCH-IM-16A

Page 34

Figure 26 Drain Pan Trapping for Section under Negative Pressure

Normal Operation

3C - Normal Operation

H= (1" for each 1" of maximum negative static pressure) + 1"

J= half of H

L= H + J + Pipe Diameter + Insulation

Figure 27 Drain Pan Trapping for Section under Positive Pressure

H = (1” for each 1” of maximum negative pressure) + 1”

J = 1/2 H

L = H + J + Pipe Diameter + Insulation

2C - Normal Operation

K= min. 1/2" H= 1/2" plus maximum

K = min. 1/2”

H = 1/2” plus maximum total static pressure

total static pressure

Negative Pressure Section

Trap the drain pan as illustrated in also illustrates the proper piping as well as the operation of the trap. Use the formula given in

to determine the correct minimum depth for the

condensate trap.

Installation and Maintenance 31

Figure 26

, which

Figure

Positive Pressure Section

The positive pressure section requires a different design than the negative pressure trap. Refer to

Figure 27

minimum trap depth.

and the formula provided to determine the

Page 35

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 co nden sa te, suc h as a cooling coil section or eliminator section, require a trap.

Figure 28

through

Figure 37

are examples of

typical installations.

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.

Coil Piping And Connections

See

Table 27

For supply, vent and drain connections, refer to

Figure 28

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.

q Support all piping independently of the coils. q Provide swing joints or flexible fittings on all

connections that are adjacent to heating coils in order to absorb thermal expansion and contraction strains.

q If ordered with factory mounted controls, install

the control valves. The valves ship separately in

through

T able 29

Figure 37

for connection sizes.

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

32 CLCH-IM-16A

Page 36

Table 27 Shipping Coil Water a nd Steam Connection Sizes

Coil Type Header Height Supply Return Drain/Vent

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 28 UF Refrigerant Coil Connections (Inches)

Unit

Size

Header

Height

Rows Dist.

Tube

No.

Circuits

Circuiting 1 Dist ributor 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 H alf 1-1/8 1-3/8

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

Installation and Maintenance 33

Page 37

Table 28 UF Refrigerant Coil Connections (Inches)

Unit

Size

Header

Height

Rows Dist.

Tube

No.

Circuits

Circuiting 1 Dist ributor 2 Distributors 4 Distributors

Liquid Suction Liquid Suction Liquid Suction

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 Notes: Number of connections - Size (Inches)

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

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

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

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

Notes:

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

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

34 CLCH-IM-16A

Page 38

Figure 28 Coil Type UW 2-Row RH and LH Small Coil Section Connections with Drain and Vent Locations

R NPT (EXT) Supply R.H. R NPT (EXT) Return L.H.

R NPT (EXT) Return R.H.

3/8” NPT Ext Vent

Left Hand

R NPT (EXT) Supply L.H.

Right Hand

AIR

FLOW

AIR

FLOW

3/8” NPT Ext Drain

Base

Note: External connections fit through casing side

Line

Table 30 2-Row UW Coil Dimensions

Unit Size L A B C D F G R

3 6

8 10 12 14 17 21 25 30 35 40

11 10-9/16 13-11/16 4-1/2 6-1/2 21-5/8 2-5/8 1-1/2 11 12-1/16 14-3/16 4-1/2 6-1/2 24-5/8 2-5/8 1-1/2 11 13-15/16 17-1/16 4-1/2 6-1/2 26-3/ 8 2-5/8 1-1/2 11 13-15/16 17-1/16 4-1/2 6-1/2 26-3/ 8 2-5/8 1-1/2 11 16-7/16 19-9/16 4-1/4 6-3/4 33-3/8 2-5/8 2 11 13-15/16 20-13/16 4-1/4 6-3/4 25 -7/8 2-5/8 2 11 18-15/16 22-1/16 4-1/4 6-3/4 38 -3/8 2-5/8 2 11 20-5/8 25-3/4 3-3/4 7 42-1/8 2-5/8 2-1/2 11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2

11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2

Installation and Maintenance 35

Page 39

Figure 29

AIR

FLOW

AIR

FLOW

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

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

Table 31 2-Row UW Coil Dimensions

36 CLCH-IM-16A

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

50 66 80

100

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 6 9-1/2 2 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 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 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

Page 40

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).

R NPT (EXT) Supply R.H. R NPT (EXT) Return L.H.

R NPT (EXT) Return R.H.

3/8” NPT Ext Vent

Left Hand

R NPT (EXT) Supply L.H.

Right Hand

AIR

FLOW

AIR

FLOW

3/8” NPT Ext Drain

Base

Line

Table 32 2-Row UW Coil Dimensions

Unit Size L A B C D F G R

3 6

8 10 12 14 17 21 25 30 35 40

11 25-3/4 26-7/8 3-3/4 7 45-1/4 2-5/8 2-1/2 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2 11-1/2 29-7/16 30-9/16 4-3/8 7-1/8 58-3/4 3-5/32 2-1/2

Installation and Maintenance 37

Page 41

Table 33 UW 4, 6, and 8-Row, RH and LH Medium Coil Dimensions in inches

UW Coil Section

Unit

Size

3 6 8 10 12 14 17 21 25 30 35 40

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 9-5/1 6 11-9/16 1-1/2 15-1/2 13-15/16 17-1/16 3-15/16 7-3/16 9-5/1 6 11-9/16 1-1/2 15-1/2 13-15/16 17-1/16 3-15/16 7-3/16 9-5/1 6 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 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 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 in c hes

UU Coil Section

Unit

Size

3 6 8 10 12 14 17 21 25 30 35 40

C 4 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

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

38 CLCH-IM-16A

Page 42

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

R NPT (EXT) Supply R.H. R NPT (EXT) Return L.H.

3/8” NPT Ext Vent

AIR

FLOW

Left Hand

R NPT (EXT) Return R.H. R NPT (EXT) Supply L.H.

3/8” NPT Ext Drain

AIR

FLOW

Right Hand

1’7”

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 66 80

100

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

Unit Size C 4 ROW 6 ROW 8 ROW C 4 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

18-3/4 21-7/8 60 35-5/8 39 52-3/4 55-7/8 69-5/8 2 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 31-1/2 34-5/8 11-1/ 2 54-5/8 58 42 81-1/8 101-1/8 2-1/2

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

UW COIL SECTION UU COIL SECTION

D D

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

Installation and Maintenance 39

Page 43

Figure 32

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

1-1/4” NPT (INT)

Return

Figure 33 Coil Type P2, 18, 24” Headers with Drain and Vent Locations

2, 4 Row 6 Row

1/2” NPT Vent

AIR FLOW

1-1/4” NPT (INT)

Supply

Sq Hd Pipe Plug 1/2” NPT Drain

6”

Water Outlet

AIR

FLOW

25-1/2”

10-1/2”

4”

24-1/8”

12”

2”

Water Outlet

Water Inlet

6”

1/2” NPT Drain

Table 37 Coil Type P2, 18, 24” Headers Dimensions (in)

Header

18 16.5 24 22.5

40 CLCH-IM-16A

Page 44

Figure 34

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

2 Row 4 Row

1/2” NPT Vent

1.68”

1/2” NPT Vent

3”

Water Outlet

AIR FLOW

Water Inlet

0.18”

1/2” NPT Drain

Table 38 Coil Type P4, 18, 24” Headers Dimensions (2-Row) in inches

3”

Table 39 Coil Type P4, 18, 24” Headers Dimensions (4-Row) in inches

Header A B

18 10.5 6 24 13.5 9

Figure 35 Coil Type P4, 18, 24” Headers with Drain and Vent Locat ion (6 and 8 Row)

Water Outlet

Header A B

18 7.5 9 24 10.5 12

6 Row 8 Row

Water Outlet

1/2” NPT Vent

AIR

Water Inlet

7-1/2”

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

FLOW

Water Inlet

1/2” NPT Vent

1/2” NPT Drain

3”

4-1/2”

Water Outlet

Installation and Maintenance 41

Page 45

Figure 36

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

4 Row 8 Row

1/2” NPT Vent

AIR

1/2” NPT Vent

FLOW

Water Inlet

Water Outlet

1/2” NPT Drain

Water Inlet

3”

Water Outlet

Table 41 Coil Type P8, 18, 24” Headers (4-Row) Dimensions in inches

Header A B C D

Table 42 Coil Type P8, 18, 24” Headers (8-Row) Dimensions in inches

Header A

18 7.5 9 1.2 1.2 24 10.5 12 0 4.5 30 13.5 15 1.2 1.2

Figure 37 Coil Type W with 18, 24, 30 and 33” Headers and with Drain and Vent Locations

18 16.5 24 22.5 30 28.5

2-1-2” NPT (INT) Return

AIR

FLOW

1/2” NPT (INT) Drain

1/2” NPT (INT) Vent

2-1-2” NPT (INT) Supply

1/2” NPT (INT) Vent

2-1-2” NPT (INT) Supply

1/2” NPT (INT) Drain

Left Hand Coil Right Hand Coil

AIR

FLOW

2-1-2” NPT (INT) Return

42 CLCH-IM-16A

Page 46

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 24 30 33

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

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 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 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

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

facing into air flow)

Table 44 Coil Type W Coil Connections (Left and Right Hand) in inches

Header G

44.5

67.5 8 10.5

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 temperatures 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

Code of System Components (Piping Diagrams

FT BT GV OV TV VB CV ST AV

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

Installation and Maintenance 43

Page 47

T-Series Climate Changers fitted with steam coils

CAUTION

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.

Condensate must flow freely from the coil to prevent coil damage from water hammer, unequal thermal stresses, freeze-up damage and corrosion. Complete the following recommendations to prevent damage:

1 Install 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.

2 Vent 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.

Proper steam trap selection and installation is necessary for satisfactory coil performance and service life. For installation, use the following steps:

1 Install 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 o f low pr essure suppl y steam exi sts. 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.

2 Trap each coil separately to prevent holding up

condensate in one or more of the coils.

3 Install strainers as close as possible to the inlet

side of the trap.

4 If installi ng co il s i n ser ie s a ir fl ow, 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.

5 Use a V-Port modulating valve to obtain gradual

modulation of the coil steam supply.

The 1/2” 15 swing-check vacuum breaker is recommended because of the low cracking pressure of 3to 5-inches of water. Some other vacuum breakers, such as spring loaded ball-check vacuum breakers, have cracking pressures as high as 17-inches of water. Substitution 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.

6 Do 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.

7 Slowly turn the steam on full for at least 10

minutes before opening the fresh air intake on units with fresh air dampers.

8 Pitch all supply and return steam piping down 1-

inch per 10 feet in the direction of the steam or condensate flow.

9 Do 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 re turns r equire 1 p sig of pr essure at the steam trap discharge for each 2-foot elevation.

44 CLCH-IM-16A

Page 48

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.

Code of System Components (Piping Diagrams

FT BT GV OV TV VB CV ST AV

Installation and Maintenance 45

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

q Check the coil for fin damage and straighten if

necessary.

q Check that the coil is installed correctly with the

air flow in the same direction as indicated on the nameplate or coil casing.

Page 49

Figure 41

CAUTION

Typical Piping for Type DD Water Coil

Figure 42 Typical Piping for Type W Water Coil

3 Install a drain line and shutoff valve in the supply

line near the coil.

Type W, D, K, UW and UU water coils are selfventing 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:

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

the return header

q Vent 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 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:

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

the return header.

2 Vent 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 42

Figure 41

through

Do not throttle or modulate the water flow for coils that are exposed to freezing temperatures. Coil damage may result from coil freeze-up.

Figure 43 Type F Refrigerant Coil with Packed Elbow

Perforated Plate

Panel

(Packed Elbow)

Coil

NOTE: TYPE UF COILS ARE FITTED WITH 5/8” TUBE AND CAP ASSEMBLY TO SEAL VACUUM AND NITROGEN CHARGE. USE CAP AND TUBE TO MAKE REFRIGERATION CONNECTIONS.

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.

Cut Here For Piping

Distributor

DO NOT

1 Check that the coil is installed correctly with

airflow in the same direction as indicated on the

46 CLCH-IM-16A

Page 50

coil nameplate or casing. The suction connection must be at the bottom of the suction header.

2 Follow accepted refrigeration piping practices and

safely precautions for typical refrigerant coil piping and components. See recommendations are provided with the highside components, including instructions for pressuretesting, evacuation, and system ch ar gin g. General recommendations for component selection and line sizing follow.

3 Leak-test the entire refrigeration system after all

piping is complete.

4 Charge the unit according to approximate weight

requirements, operating pressures and superheat/subcooli ng mea su re men ts.

5 Adjust the thermal expansion valve setting if

necessary.

Figure 43

. Specific

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.

1 Install 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.

2 Size liquid line shutoff valve with an access port

using the selected liquid line OD, and install it close to the condenser.

3 Minimize 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.

4 The 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.

5 Install the TEV directly on the coil liquid

connection (distributor) provided. The liquid distributor must be in a true vertical position.

CAUTION

Disassemble the thermal expansion 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 internal components.

Installation and Maintenance 47

Page 51

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, T rane 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 nece ssary 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.

48 CLCH-IM-16A

Page 52

Wiring

. See unit control drawings for specific connection

information.

WARNING

Disconnect electrical power source before servicing the unit or connecting electric al wires.

Failure to do so may result in personal injury or death from electrical shock or entanglement in moving parts. If the unit includes a factorymounted starter, use of the lockout/ tagout on the disconnect is requ ired 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.

For typical field wiring to units with DDC: q Provide 120 VAC power for control. A dedicated

circuit is recommended. Units with a factorymounted starter or VFD do not require this circuit as they are powered by the oversized control transformer in the starter or VFD.

q If unit ships in multiple sections, fasten quick

connects ( together.

q Field mount and wire outside air sensor and

space sensor, if ordered.

Figure 23

) before sections bolt

CAUTION

Use copper conductors only for terminal connections. Use of aluminum or other type of wiring may result in galvanic corrosion or overheating and resultant equipment 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

Connection of junction sections to unit end devices is accomplished using the connections shown in

following.

Figure

Installation and Maintenance 49

Page 53

Figure 44 Typical Hi gh Voltage Wiring Schematic

50 CLCH-IM-16A

Page 54

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14 Leave the unit installation and maintenance

manual with the unit.

Prestart-Up Checks

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 servicing the unit to ensure tha t rotor cannot free-wheel. Failure to secure drive sheaves can cause severe personal injury.

1 Examine the unit and components for material

shortage or shipping damage.

2 Check unit location for unit dimensions, weights

and clearances.

3 Rig each section properly and hoist it to its final

position.

4 For split ship units with factory mounted controls,

connect color coded and numbered quick connect plugs (reference

5 Check that unit is installed level. 6 Remove fan isolator tie-down bolt, if unit is not

externally isolated. See

7 Inspect Inlet Guide Vanes and adjust if necessary. 8 Install damper operator motors and connecting

linkage. Check damper operation and linkage alignment.

9 Install 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 un its with factory mounted controls.

13 Complete electrical connections to the unit and

PCM.

Figure 44

Figure 18

and

Figure 19

Before operating the unit, complete the following checks for safe and efficient operation.

WARNING

Disconnect electrical power source when connecting or disconnecting electrical wires for test procedures. Do not open service access doors while the unit is operating. Failure to exercise caution when completing test procedures or while inspecting unit operation may result in injury or death from electrical shock, air movement or rotating parts.

q Rotate all fan wheels manually. Fans should turn

freely in the proper direction.

q Check 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.

q Check fan hub set screws, sheave set screws and

bearing set screws for proper torque ( Fan sheaves should be tight and aligned. Bearing set screws should be aligned. See section titled

“Periodic Maintenance” for alignment instructions.

Table 45 Fan Bearing Setscrew Torque Settings (lb-ft)

Screw Size Hex Size Torque

1/4 5/16 3/8 7/16 1/2

q Inspect fan motor and bearings for prope r

lubrication. Refer to recommendations. Contact the motor

1/8 5.5-7.5 5/32 10.5-13.7 3/16 19-25 7/32 29-37.5

1/4 42-54.2

Table 49

for fan grease

Table 45

Installation and Maintenance 51

Page 55

representative for motor lubrication recommendations.

q Inspect electrical connections. They should be

clean and secure. Compare actual wiring with specific diagrams on the unit.

q Check piping and valve for leaks. Open or close

the valves to check operation. Drain lines should be open.

q If 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.

q Check that air filters are in place and positioned

properly.

q Remove all foreign material from the drain pan

and check pan opening and condensate line for obstructions.

q Check unit for debris. q Close and secure all unit access doors.

52 CLCH-IM-16A

Page 56

6WDU W8S

7 Check unit for debris. 8 Reference CLCH-IOP-1 for more details on the

start-up of units with factor y mounted controls.

Start-Up Procedures

CAUTION

Inadequate lubrication of fan motor or bearings may result in premature bearing or motor failure.

1 Inspect el ectrical connections. They should be

clean and secure. Compare actual wiring with specific diagrams provided on the unit.

2 Check 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 damage caused by untreated or improperly treated water.

3 If 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.

4 Check 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.

5 Close and secure all unit access doors. Check

that the latch set screws are tight.

6 Remove all foreign material from the drain pan

and check drain pan opening and condensate line for obstructions.

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 “windmilling.” The impeller should be secured to physically restrict rotational movement. Failure to secure impeller can cause severe personal injury or death.

If the unit was stored for an extended period of time, the following items should be checked before starting the unit.

1 Inspect motor bearings for moisture and rust.

Replace bearings if necessary and repack with new grease.

2 Check 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.

3 Inspect the entire motor for rust and corrosion. 4 Lubricate the motor as instructed in the section

titled “Periodic Maintenance,” or as indicated by the maintenance tag on the motor.

Installation and Maintenance 53

Page 57

5 Bump-start unit and observe the fan wheel for

proper rotation, as indicated by rotation arrow located on fan housing.

6 Measure 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

sheaves and tighten the sheave set screws to the proper torque given in

Figure 45 Proper Drive Alignment

Fixed

Sheave

Table 47

Center Lines Must Coincide

Fixed

Sheave

Straight

Edge

Lines Must Be Parallel

Straigh

Edge

= 2.2% (Unacceptable)

In this example, 2.2 percent imbalance is not acceptable and the power company should be notified to correct it.

q Check 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.

q Pay 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.

Adjustable

Sheave

W ARNING

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 “windmilling.” The impeller should be secured to physically restrict rotational movement. Failure to secure impeller can cause severe personal injury or death.

Fan Belt Alignment

Tighten the belts slightly and rotate the drive several times.

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

54 CLCH-IM-16A

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.

Page 58

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

Figure 47 Fan Sheave Pitch Diameter

Table 46 Values for K-Factor (Belt Cross Section Types)

W ARNING

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 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 “windmilling.” The impeller should be secured to physical ly restrict rotational movement. Failure to secure impeller can cause severe personal injury or death.

Belt Type K Factor

Figure 48 Belt Tension Measurement

ABCDE3L4L

8 13408095 6 6

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

6 6 12 25 11 18 54 101

Installation and Maintenance 55

Page 59

Figure 49 Belt Tensione r

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:

q Fan design brake horsepower (bhp) per belt (not

motor hp)

q Fan rpm q Fan sheave pitch diameter, found by measuring

where the middle of the belt rides in the sheave (See

Figure 47

)

q Type of belt cross-section (stamped on the belt)

56 CLCH-IM-16A

Page 60

Table 47 Belt Tension

Installation and Maintenance 57

Page 61

As shown in the example of 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

To measure belt tension, use a belt tensiometer as shown in 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

For belt cross-section types not given in use the following equations to calculate correct belt tension.

Figure 49

. Determine actual deflection by

Table 47

, the correct

Figure 48

Table 47

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

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.

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

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 squea li ng.

Table 46

are

58 CLCH-IM-16A

Page 62

3HULRGLF0DLQWHQDQFH

operating conditions include high speeds, moist or dirty air, or high temperatures.

q Check and adjust fan belt tension.

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. Exer cise caution 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 “windmilling.” The impeller should be secured to physical ly restrict rotational movement. Failure to secure impeller can cause severe personal 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

q Check 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.

q Relubricate fan bearings if operating conditions

include high speeds, moist or dirty air, or high temperatures.

q Relubricate motor bearings in accordance with

motor manufacturer’s recommendations if

Every Three to Six Months

q Check fan bearing grease line connections. Lines

should be tight to the bearings.

q Relubricate fan bearings. q Check motor lubrication. Recommendations are

provided on the motor tag or on a unit sticker.

q Check bearing and motor bracket bolt torque. q Align fan and motor sheaves. Tighten sheave set

screws to the proper torque.

q Check and adjust fan belt tension. q Tighten electrical connections. q Inspect coils for dirt build-up or coil freeze-up.

Every Year

q Inspection the unit casing for corrosion. If damage

is found, clean and repaint the surface with a rustresistant primer and vinyl chlorinated lacquer.

q Clean the fan wheels and fan shaft. Remove rust

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

q Inspect 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*)

1/4, 20 1/4, 28 5/16, 18 5/16, 24 3/8, 16 3/8, 24 7/16, 14 7/16, 20 1/2, 13 1/2, 20 9/16, 12

Thread

Designation

UNC 6 UNF 7 UNC 14 UNF 16 UNC 24 UNF 28 UNC 42 UNF 45 UNC 69 UNF 83 UNC 99

Min. Torque

Installation and Maintenance 59

Page 63

Table 48 Minimum Hex Head Bolt Torque in lb-ft

Grade 5 Bolts

Thread

Size (inches*)

9/16, 18 5/8, 11 5/8, 18 3/4, 10 3/4, 16 7/8, 9 7/8, 14 1, 8 1, 14

Designation

UNF 118 UNC 150 UNF 176 UNC 254 UNF 301 UNC 358 UNF 422 UNC 500 UNF 602

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.

Min. Torque

11 Thoroughly clean the contaminated area with a

mild bleach and water solution or an EPAapproved sanitizer specifically designed for HV AC

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.

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

sizes

q Check damper linkages, set screws and blade

adjustment. Clean, but do not lubricate, the nylon damper rod bushings.

q Clean damper operators. q Inspect the control and power box wiring for

secure connections and insulation.

q Rotate 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.

q Check condition of gasketing and insulation

around unit, door and dampers.

q Examine flex connections for cracks or leaks.

Repair or replace damaged material.

Drain Pans

Inspecting and Cleaning Drain Pans

For units with sloped drain pans

standing water or condensate overf low exis ts, 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:

7 Disconnect all electrical power to the unit. 8 Don the appropriate personal protective

equipment (PPE).

9 Remove all standing water.

, if evidence of

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.

60 CLCH-IM-16A

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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 inspecting or servicing the unit. Failure to do so may result in personal injury or death from electrical shock or rotating parts.

1 Open the filter section access door and remove

the filters and block-offs from their installed position.

2 Keeping the bag filters folded, slide each filter into

the filter rack, pushing them tightly against the unit. Pleats should be in the vertical position.

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

appropriate filter rack.

industrial cleaning solution. Carefully follow the cleaning solution manufacturers instructions regarding use of their product.

5 If 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.

6 Rinse the affected surfaces thoroughly with fresh

water and a fresh sponge to prevent potential corrosion of metal surfaces.

7 Allow the unit to dry completely before putting it

back into service.

8 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

IMPORTANT: IF MICROBIAL GROWTH (MOLD) WAS FOUND, THE CAUSE OF THE CONTAMINATION MUST BE DETERMINED AND ACTION TAKEN TO ASSURE IT DOES NOT RECUR.

4 If 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.

5 Close 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 prov ide 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:

1 Disconnect all electrical power to the unit. 2 Don the appropriate personal protective

equipment (PPE).

Fan Bearings and Motors

Bearing Set screw Alignment

Align bearing set screws as illustrated in Reference

Table 45

for bearing set screw torque.

Figure 50

3 Use 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.

4 If no microbial growth (mold) exists, thoroughly

clean the fan and associated components with an

Installation and Maintenance 61

Page 65

Figure 50 Bearing Setscrew Alignment

Set Screws (2)

Fan Bearing Lubrication

Table 49 Recommendations for Grease-Lubricated Fan Bearings

Greasing Intervals

Operating Condition s -20°F to +140°F 140°F to 200°F

Clean, Dry Dirty, Dry Dirty, Wet, High

Humid.

Recommended

Greases

Texaco-Multi Fak #2 Shell Alvania #2 Mobil Mobilux #2 Exxon Unirex #2 Texaco Prem. RB Mobil 532 Exxon Beac on Keystone 84H Shaft Size (In) 1/2 to 3/4 7/8 to 1-3/16 1-1/4 to 1-1/2 1-11/16 to 1-15/16 2 to 2-7/16 2-1/2 to 2-15/16

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

3-6 months 1-3 months 1-3 months 1-4 weeks

1-4 weeks 1-14 days

Recommended Operating Range

-20°F to +250°F

-65°F to +250

-40°F to +225°F

Max. Grease Cap. of Bearing (Oz.)

1-1/4

1/8 3/8 5/8 7/8

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 caution. Failure to do so may result in personal injury or death from electrical 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 “windmilling.” The impeller should be

62 CLCH-IM-16A

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secured to physical ly restrict rotational movement. Failure to secure impeller can cause severe personal injury or death.

1 Disconnect main power switch. 2 Check grease lines for tight connections at the

grease fitting.

3 Using 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

intervals. Motor lubrication instructions are found on the motor tag or nameplate. For a list of compatible greases, see

Table 50 Fan Bearing Maximum Grease Capacity

1/2 - 3/4 7/8 - 1-3/16 1-1/4 - 1-1/2 1-11/16 - 1-15/16 2 - 2-7/16 2-1/2 - 2-15/16

lists recommended motor greasing

Table 49

Shaft Size in inches Capacity in fl. oz.

1/7 3/8 5/8 7/8

1-1/4

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 “windmilling.” The impeller should be secured to physically restrict rotational movement. Failure to secure impeller can cause severe personal 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.

Table 51 Recommended Motor Greasing Schedule

Avg. Daily

Operating

Hours

8-16

12-24

Any

Avg.

Environment

Clean and

Dry

Moderate Dirt

or Moisture

Severe (very

dirty or high

temperatures)

.3 to 7.5 HP

Motors

Every 5 years Every 3 years

Every 2 years Every year

Every 6 months

10 to 30 HP

Motors

Every 3

months

T o relubricate the motor, consult the maintenance tag provided by the vendor.

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 personal injury and/or coil damage. Commercially available chemical cleaners may contain caustic or

Refer to mounting and bearings bolts.

Installation and Maintenance 63

Table 48

for minimum torque of motor

hazardous agents.

Page 67

1 Disconnect all electrical power to the unit. 2 Don the appropriate personal protective

equipment (PPE).

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

sides).

CAUTION

Follow directions provided with the cleaner to avoid coil damage.

4 Use a soft brush to remove loose debris from both

sides of the coil.

5 Use 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 fro m blowing through the coil and into a dry section of the unit.

6 Repeat step 5 as necessary. 7 Confirm that the drain line is open following the

cleaning.

8 Allow the unit to dry thoroughly before putting the

system back in service.

9 Straighten 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.

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.

1 Follow steps 1-4 from Steam and Water Coil

Cleaning procedure preceding.

2 Mix 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 manufac tu re rs instructions on the use of the product.

3 Place the mixed solution in a garden pump-up

sprayer or high pressure sprayer. If a high pressure sprayer is used, note the following:

q Maintain a minimum nozzle spray angle of 15

degrees.

q Spray perpendicular to the coil face.

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 cl eaning.

q Protect other areas of the air handler and internal

controls from contact with moisture or the cleaning solution.

q Keep the nozzle at least 6 inches from the coil. q Do not

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

5 Thoroughly rinse both sides of the coil and the

6 Repeat steps 4 and 5 as necessary. 7 Straighten any coil fins that may have been

8 Confirm that the drain line remains open following

exceed 600 psi.

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.

drain pan with cool, clean water.

damaged during the cleaning process with a fin rake.

the cleaning process.

64 CLCH-IM-16A

Page 68

9 Replace 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 freezing temperatures may result in coil freeze-up damage.

tightened beginning in the center and working toward the outside.

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. T o 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

Installation and Maintenance 65

Page 69

7URXEOHVKRRWLQJ

WARNING

Use the table in this section to assist in identifying the cause or ca us es of a mal fun cti on i n T-Series Climat e Changer operation. The column header

“

RECOMMENDED ACTION

procedures.

NOTE: THIS TABLE IS INTENDED AS A DIAGNOSTIC AID ONLY. FOR DETAILED REPAIR PROCEDURES, CONTACT YOUR LOCAL TRANE SERVICE COMPANY.

Disconnect electrical power source and allow all rotating equipment to stop completely

Table 52 T-Series Climate Changer Trouble Analysis

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

Bearing is excessively hot

Motor fails to start

Motor stalls

Excessive vibration

” suggests repair

First start after relubrication (Grease distribution)

Over-lubrication Clean surface of grease and purge. Over tensioned belts Adjust belt tension. No lubricant Apply lubricant. Check bearings for

Misaligned bearing Correct alignment. Check shaft level. 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

Improper current supply Compare actual supply power with

Mechanical failure Check that motor and drive rotate

Open phase Check line for an open phase. Overloaded motor Reduce load or replace with larger

Low line voltage Check voltage across AC line. Correct

Poor alignment Align bearing set screws (Figure 50 ).

Shipping spacers not removed Remove shipping spacers and/or

Over tensioned belts Adjust belt tension. Misaligned drive Align drive.

before inspecting or servicing the unit. Failure to do so may result in personal 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 “windmilling.” The impeller should be secured to physically restrict rotational movement. Failure to secure impeller can cause severe personal injury or death.

Allow machine to cool down and restart.

damage.

unit.

motor nameplate recommendations. Contact power company for adjustments.

freely. Check bearing lubricant.

motor.

voltage if possible.

Loosen and retighten bearing set screws.

bolts. See Figure 18 and Figure 19 .

66 CLCH-IM-16A

Page 70

Table 52 T-Series Climate Changer Trouble Analysis

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

Motor runs and then dies down

Motor does not come up to

Partial loss of line voltage Check for loose connections.

Stator shorts when motor warms up Replace stator. Low voltage at motor terminals Check voltage across AC line and

speed

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

Motor overheats

Excessive motor noise

Rapid motor bearing wear

Loose fan belt

Shorter belt life

Bearing noise

Low coil capacity

Overloaded motor Reduce load or replace with a larger

Motor fan is clogged with dirt preventing proper ventilation

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

Excessive overhung load due to overtensioned drive

Excessive overhung load due to a small diameter motor sheave

Motor is poorly positioned Adjust belt tension. Worn or damaged belt Replace belt or belt set. Check sheave

Worn sheaves Replace sheaves. Worn sheaves Replace sheaves. Misaligned belt Realign drive with MVP sheave set at

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

Belt slipping Adjust tension. Belts rubbing Remove obstruction or realign drive

Poor alignment Loosen bearing set screws and realign

Inadequate lubrication Grease bearing(s). Air is bypassing coil Prevent bypass with block-offs.

(Chilled water)

Coil tubes are blocked Clean and unblock tubes. Incorrect airflow Check fan operating conditions. Incorrect gpm Check water pumps, valves and lines

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

Determine adequacy of main power supply.

correct voltage loss if possible.

motor. Remove fan cover, clean fan and

replace cover.

housing. Check belt tension and overhung load.

Replace sheave with larger one.

alignment.

mean pitch diameter.

and sheaves.

for clearance.

(See Figure 50 .)

for obstructions.

operation.

Installation and Maintenance 67

Page 71

Table 52 T-Series Climate Changer Trouble Analysis

SYMPTOM PROBABLE CAUSE RECOMMENDED ACTION

Poor refrigerant distribution Check for blockage in distributor and

Drain pan is overflowing

Standing water in drain pan Excess dirt in unit

Mold inside air handler

Plugged drain line Clean drain line. Unit not level Level unit. Improper trap design Design trap for unit. Missing filters Replace filters. Filter bypass Reduce filter bypass. Standing water in drain pan See “Standing water” symptom.

tubes.

68 CLCH-IM-16A

Trane CLCH-IM-16A, T-Series Installation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual