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21

Table 16 — CFM Chart for Setting Minimum and Maximum Values on Thermostat

AO1 AND 

AO2

SENSOR 

SIGNAL

CFMs PER INLET SIZE

4

5

6

7

8

9

10

12

14

16

20

22

0-2

0.00

0

0

0

0

0

0

0

0

0

0

0

0

2.1

0.03

36

57

81

111

145

183

226

326

444

580

315

1107

2.2

0.05

51

80

115

157

205

259

320

461

627

820

445

1565

2.3

0.08

63

98

141

192

251

318

392

565

768

1004

545

1917

2.4

0.10

72

113

163

222

290

367

453

652

887

1159

630

2214

2.5

0.13

81

127

182

248

324

410

506

729

992

1296

704

2475

2.6

0.15

89

139

200

272

355

449

555

798

1087

1420

771

2711

2.7

0.18

96

150

216

293

383

485

599

862

1174

1533

833

2928

2.8

0.20

102

160

231

314

410

519

640

922

1255

1639

891

3130

2.9

0.23

109

170

244

333

435

550

679

978

1331

1739

945

3320

3.0

0.25

115

179

258

351

458

580

716

1031

1403

1833

996

3500

3.1

0.28

120

188

270

368

481

608

751

1081

1472

1922

1045

3671

3.2

0.30

125

196

282

384

502

635

784

1129

1537

2008

1091

3834

3.3

0.33

131

204

294

400

522

661

816

1175

1600

2089

1136

3991

3.4

0.35

136

212

305

415

542

686

847

1220

1660

2168

1178

4141

3.5

0.38

140

219

316

430

561

710

877

1263

1718

2244

1220

4287

3.6

0.40

145

226

326

444

580

733

905

1304

1775

2318

1260

4427

3.7

0.43

149

233

336

457

597

756

933

1344

1829

2389

1299

4563

3.8

0.45

154

240

346

471

615

778

960

1383

1882

2459

1336

4696

3.9

0.48

158

247

355

484

632

799

987

1421

1934

2526

1373

4824

4.0

0.50

162

253

364

496

648

820

1012

1458

1984

2592

1408

4950

4.1

0.53

166

259

373

508

664

840

1037

1494

2033

2656

1443

5072

4.2

0.55

170

265

382

520

680

860

1062

1529

2081

2718

1477

5191

4.3

0.58

174

271

391

532

695

879

1086

1563

2128

2779

1510

5308

4.4

0.60

177

277

399

543

710

898

1109

1597

2174

2839

1543

5422

4.5

0.63

181

283

407

555

724

917

1132

1630

2218

2898

1575

5534

4.6

0.65

185

289

416

566

739

935

1154

1662

2262

2955

1606

5644

4.7

0.68

188

294

423

576

753

953

1176

1694

2305

3011

1636

5751

4.8

0.70

192

299

431

587

767

970

1198

1725

2348

3067

1666

5857

4.9

0.73

195

305

439

597

780

987

1219

1755

2389

3121

1696

5960

5.0

0.75

198

310

446

608

794

1004

1240

1785

2430

3174

1725

6062

5.1

0.78

202

315

454

618

807

1021

1260

1815

2470

3227

1753

6162

5.2

0.80

205

320

461

627

820

1037

1281

1844

2510

3278

1782

6261

5.3

0.83

208

325

468

637

832

1053

1300

1873

2549

3329

1809

6358

5.4

0.85

211

330

475

647

845

1069

1320

1901

2587

3379

1836

6454

5.5

0.88

214

335

482

656

857

1085

1339

1929

2625

3428

1863

6548

5.6

0.90

217

340

489

666

869

1100

1358

1956

2662

3477

1890

6641

5.7

0.93

220

344

496

675

881

1115

1377

1983

2699

3525

1916

6732

5.8

0.95

223

349

502

684

893

1130

1395

2009

2735

3572

1941

6823

5.9

0.98

226

353

509

693

905

1145

1414

2036

2771

3619

1967

6912

6.0

1.00

229

358

515

702

916

1160

1432

2062

2806

3665

1992

7000

Summary of Contents for 45J

Page 1: ...d Wheel 22 Fan Motor Wiring 22 Fan Motor Maintenance 22 SAFETY CONSIDERATIONS See Fig 1 for the Proposition 65 warning label Fig 1 Proposition 65 Warning Label PRE INSTALLATION General The 45J K Q constant volume series and 45M N R variable volume parallel fan powered boxes see Fig 2 and 3 can be equipped to provide pressure independent variable volume VAV All units can also be equipped with facto...

Page 2: ...r damage to duct connections coils or controls File dam age claim immediately with transportation agency and notify Carrier NOTE Remove all packaging material and foreign material from unit and ensure the blower wheel moves freely before installation Units are shipped with cardboard in both sides of the fan inlet that MUST be removed Unit Identification Each unit has 2 main labels attached to the ...

Page 3: ... 4 9 32 24 28 6 100 4 9 35 25 30 7 175 4 9 40 35 43 Table 2 45M Unit Weights SIZE UNIT ONLY lb WITH PNEUMATIC CONTROLS WITH DDC OR ANALOG CONTROLS WITH ELECTRIC HEATER WITH HOT WATER 1 Row 2 Row 2 114 4 9 30 19 21 3 114 4 9 30 20 22 4 115 4 9 32 22 25 5 122 4 9 32 24 28 6 123 4 9 35 25 30 7 127 4 9 40 35 43 Table 3 45K Unit Weights 45K SIZE UNIT ONLY lb WITH PNEUMATIC CONTROLS WITH DDC OR ANALOG C...

Page 4: ...sformer and fan relay Analog Electronic Controls Pressure independent control packages are available with or without hot water or electric heat automatic or remote night shutdown and automatic night setback All control arrange ments include a standard inlet flow sensor control enclosure SCR fan speed controller 24 volt transformer fan relay and wall thermostat to match the control type Pneumatic C...

Page 5: ... of straight duct are supplied to the inlet of the unit An elbow put at the inlet of the unit will create turbulence at the inlet making it difficult for the flow sensor to accurately measure the airflow Check that the pressure pick up in primary air collar is lo cated properly and that air supply duct connections are air tight Install supply ductwork on unit inlet collar following all accepted me...

Page 6: ...K Shown Fig 7 Typical Perimeter Installation Constant Volume Fan Powered Box FIELD SUPPLIED HANGER BRACKET OPTIONAL ACCESSORY HANGER FIELD SUPPLIED HANGING STRAPS DO NOT suspend unit by trapeze hangers that interfere with the unit access panel ...

Page 7: ...pecified for the job and specific for each unit on the job Default set point values are provided by the factory and can be reset to the specific requirements in the field The fan speed must be field adjusted after all discharge ductwork and diffusers have been installed Field Adjustment of the Maximum and Minimum Airflow Set Points Each fan powered terminals unit is equipped with a flow probe inst...

Page 8: ...el and that adequate mounting support has been provided 3 Remove motor access panel from the bottom of the fan box and also remove the control panel cover 4 Test the fan motor setscrew The setscrew should fit tightly but it may have come loose during shipment or installation 5 Rotate the blower by hand to ensure proper clearance be tween the blower and the blower housing 6 Check the fan box for lo...

Page 9: ...Airflow Adjustment of Set Points Each 45J 45K and 45Q supplied with controls is equipped with a pneumatic or electronic volume controller which regulates the quantity of cold primary air entering the terminal and the condi tioned space If required airflow levels are specified with the job order the minimum and maximum cfm levels will be set at the factory where applicable If minimum and maximum le...

Page 10: ...________ ENGINEER _________________________________________ BUILDING LOCATION FLOOR _________________________ BUS NUMBER ______________________________________ Fig 10 Air Terminal Performance Sheet CONTROL SET POINTS Tag Number Zone Address Box Size in cfm Cooling cfm Fan cfm Heating cfm Heat kW Occupied Unoccupied Calibration Gain Min Max Min Max Type Btu Min Max Min Max Mult ...

Page 11: ... respectively Table 9 45J Series Fan Powered Terminal Unit Performance 45J WITH PSC FAN MOTOR UNIT SIZE INLET SIZE in FAN AIRFLOW cfm PRIMARY AIRFLOW cfm MOTOR HP MOTOR AMPS MIN MAX MIN MAX 120V 208 240V 277V 2 6 100 560 52 or 0 515 1 10 1 8 1 0 7 3 6 300 990 52 or 0 515 1 4 3 6 2 1 5 8 92 or 0 916 4 8 550 1440 92 or 0 916 1 4 5 2 8 2 1 10 143 or 0 1432 12 206 or 0 1440 5 10 1100 2140 143 or 0 143...

Page 12: ...IRFLOW cfm PRIMARY AIRFLOW cfm MOTOR HP MOTOR AMPS MIN MAX MIN MAX 120V 208 240V 277V 2 6 50 530 52 or 0 515 1 10 1 4 0 8 0 6 8 92 or 0 530 3 6 200 1100 52 or 0 515 1 4 4 3 2 4 1 8 8 92 or 0 916 10 143 or 0 1100 12 360 or 0 1100 4 8 500 1300 92 or 0 916 1 4 4 3 2 4 1 8 10 143 or 0 1300 12 206 or 0 1300 5 10 800 1900 143 or 0 1432 1 2 8 3 4 4 3 5 12 206 or 0 1900 14 281 or 0 1900 6 10 1200 2600 143...

Page 13: ... INLET SIZE in FAN AIRFLOW PRIMARY AIRFLOW MOTOR HP MOTOR AMPS MIN MAX MIN MAX 120V 208 240V 277V 3 8 460 1075 92 or 0 916 1 4 5 8 2 6 2 2 10 143 or 0 1075 4 10 805 1650 143 or 0 1432 2 1 6 6 9 3 7 2 7 13 5 X 8 206 or 0 1650 5 10 840 1970 143 or 0 1432 1 2 8 4 4 2 3 7 12 206 or 0 1970 14 281 or 0 1970 45Q UNITS WITH ECM FAN MOTOR UNIT SIZE INLET SIZE in FAN AIRFLOW PRIMARY AIRFLOW MOTOR HP MOTOR A...

Page 14: ...r entering the terminal and the conditioned space If required airflow levels are specified with the job or der the minimum and maximum cfm levels will be set at the factory If minimum and maximum levels are not specified a default value is used Other settings of minimum and maxi mum primary airflow must be set in the field Airflow cfm ranges for the primary air damper are shown in Tables 12 14 for...

Page 15: ...208 240V 277V 2 6 200 400 52 or 0 515 1 10 1 6 0 9 0 7 8 92 or 0 916 1 10 2 3 6 300 990 52 or 0 515 1 4 3 6 2 1 5 8 92 or 0 916 4 8 550 1440 92 or 0 916 1 4 5 2 8 2 1 10 143 or 0 1432 12 206 or 0 1440 5 10 1100 2140 143 or 0 1432 1 2 8 3 4 6 3 5 12 206 or 0 2062 6 12 1200 2530 206 or 0 2062 3 4 9 5 5 8 4 4 14 281 or 0 2530 7 16 2100 3900 367 or 0 3665 2 3 4 N A 13 2 9 9 45N WITH PSC FAN MOTOR UNIT...

Page 16: ...ble with ECM motors for easy balancing These motors supply a determined amount of air regardless of static pressure from ductwork layout or air distri bution The ECM motors are programmed to provide a maxi mum CFM depending on model and unit size The motors are then set to provide the desired CFM as a proportional amount of the maximum The proportion can be set by several options VCU CONTROL OPTIO...

Page 17: ...o the differential pressure sensor signal line tees 4 Verify that the installed room thermostat is compatible with the unit control 5 Close the primary air damper a RANC disconnecting the actuator from the con troller should allow the damper to close completely b DANO connecting to 20 psi air supply directly to the actuator should close the damper completely 6 Start the blower motor by doing one o...

Page 18: ...bleshooting Pneumatic Controls Units with Multi Function Controllers Sequences 1306 1317 and 1402 1405 1 Determine sequence of operation direct acting normally closed DANC reverse acting normally closed RANC direct acting normally open or reverse acting normally open This can be accomplished by reading the diagram affixed to the unit All sequences above utilize a four func tion controller allowing...

Page 19: ...f plenum air will be induced and heating coils if supplied are full on See Table 15 for pneumatic control troubleshooting 5 Adjust the HI STAT knob with a 15 psi thermostat sig nal to obtain the desired airflow setting Depending on the control sequence desired the HI STAT knob will vary either the minimum setting or the maximum setting as follows DANC HI STAT knob adjusts the maximum setting RANC ...

Page 20: ...with the thermostat Verify the hex screws used for securing the cover are located at the bottom before installing 4 Connect the wires to the terminal block Refer to the wiring diagram located on the inside cover of the control enclo sure of each unit showing the wiring terminations 5 Replace the thermostat cover Turn the two hex screws COUNTER CLOCKWISE until they are flush with the bottom cover a...

Page 21: ...5 778 960 1383 1882 2459 1336 4696 3 9 0 48 158 247 355 484 632 799 987 1421 1934 2526 1373 4824 4 0 0 50 162 253 364 496 648 820 1012 1458 1984 2592 1408 4950 4 1 0 53 166 259 373 508 664 840 1037 1494 2033 2656 1443 5072 4 2 0 55 170 265 382 520 680 860 1062 1529 2081 2718 1477 5191 4 3 0 58 174 271 391 532 695 879 1086 1563 2128 2779 1510 5308 4 4 0 60 177 277 399 543 710 898 1109 1597 2174 283...

Page 22: ...g Refer to the fan motor wiring details shown on the wiring diagram attached to the unit Failure to reconnect the fan properly can cause damage to the motor and or serious per sonal injury Fan Motor Maintenance Unit motors are equipped with permanently lubricated bear ings Inspect fan and motor assembly for accumulation of dust and dirt as required by operating environment Clean as neces sary See ...

Page 23: ...t too high or discharge static pressure is too low If fan motor runs insufficient airflow 1 Check for ductwork restrictions dirty air filters and clogged water coils 2 Re adjust fan speed control 3 Discharge static pressure too high If repair or replacement is required 1 Motor and fan should be removed as an assembly Discon nect all power before servicing 2 Remove the four hex nuts from the mounti...

Page 24: ...e right to discontinue or change at any time specifications or designs without notice and without incurring obligations Catalog No 04 53450003 01 Printed in U S A Form 45 5SI Pg 24 8 18 Replaces 45 3SI Carrier Corporation 2018 ...

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