Lennox LCM036 Installation Instructions Manual Download Page 17

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Page 17

BLOWER DA

5 & 6 T

BLOWER T

ABLE INCLUDES RESIST

ANCE FOR BASE UNIT ONL

Y WITH DR

Y INDOOR COIL

AND

AIR FIL

TERS IN PLACE.

FOR

ALL

UNITS ADD:

1 -

Any factory installed options air resistance (heat section, economizer

, etc.).

2 -

Any field installed accessories air resistance (duct resistance, diffuser

, etc.).

See Page 19 for blower motors and drives and wet coil and options/accessory air resistance data.

DOWNFLOW

Total

Air

Volume

cfm

Total Static Pressure - in. w

.g.

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

1.3

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

400

655

- - -

500

727

822

918

- - -

600

802

896

990

1072

- - -

700

883

975

1065

1148

1218

111

- - -

800

970

1059

1146

1226

111

1296

125

1359

139

1420

156

- - -

900

1065

1150

1233

1309

125

1377

140

1438

156

1499

174

1560

193

1621

213

- - -

1000

1167

1246

109

1323

125

1395

141

1460

157

1521

175

1579

195

1638

215

1696

237

1752

260

1801

285

1844

311

- - -

1100

1274

108

1347

125

1418

142

1485

159

1547

177

1605

197

1662

219

1718

242

1773

265

1825

290

1872

316

1914

343

1953

368

1200

1383

126

1450

144

1516

162

1577

181

1635

201

1691

223

1746

247

1800

272

1852

297

1900

323

1944

350

1985

377

2022

402

1300

1493

146

1555

164

1615

184

1672

205

1726

229

1779

254

1831

280

1882

306

1931

332

1977

359

2019

386

2057

413

2094

438

1400

1602

167

1659

188

1714

211

1766

235

1816

261

1866

289

1915

316

1964

343

2010

370

2053

397

2093

424

2132

449

2169

474

1500

1707

194

1758

219

1808

244

1857

271

1904

300

1950

328

1996

355

2041

381

2085

408

2127

434

2168

459

2207

484

2245

509

1600

1803

231

1851

258

1898

286

1945

314

1990

342

2034

369

2077

395

2120

419

2162

445

2204

471

2245

496

2285

522

2324

549

1700

1898

275

1944

303

1989

331

2034

359

2078

386

2120

410

2162

434

2204

458

2245

484

2286

511

2327

538

2366

567

2403

598

1800

1998

318

2041

347

2085

375

2128

402

2171

427

2213

451

2254

475

2294

500

2334

528

2374

557

2412

588

2449

621

2484

655

1900

2102

341

2143

371

2185

401

2226

431

2267

459

2308

487

2348

515

2387

546

2425

578

2463

611

2499

646

2534

682

2567

719

2000

2206

361

2245

396

2285

431

2325

465

2365

499

2404

534

2442

568

2479

604

2515

641

2551

677

2586

715

2619

752

2652

790

2100

2308

407

2347

446

2386

485

2424

524

2462

562

2499

600

2535

638

2570

676

2605

714

2640

752

2674

789

2707

826

2738

863

2200

2410

477

2449

517

2487

557

2524

597

2561

636

2596

674

2630

712

2664

750

2698

787

2732

825

2765

862

2797

898

2828

934

2300

2514

552

2552

591

2589

631

2625

670

2660

709

2694

747

2727

784

2760

822

2793

859

2826

896

2858

933

2889

969

2920

1004

2400

2621

627

2657

666

2693

706

2728

744

2762

782

2794

820

2826

857

2858

894

2890

931

2922

968

2953

1004

2984

1040

3014

1076

2500

2729

703

2764

742

2798

781

2831

819

2864

856

2895

893

2927

930

2958

967

2989

1004

3020

1040

3050

1076

3080

111

3111

1147

Total

Air

Volume

cfm

Total Static Pressure - in. w

.g.

1.4

1.5

1.6

1.7

1.8

1.9

2.0

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

RPM

atts

1100

1990

392

- - -

1200

2060

426

2098

449

2136

470

2176

493

- - -

1300

2131

462

2169

485

2208

507

2247

531

2286

555

2325

582

2363

609

1400

2206

498

2244

522

2282

546

2320

572

2358

599

2396

627

2433

657

1500

2283

534

2321

560

2359

588

2395

617

2432

648

2467

680

2503

713

1600

2362

577

2398

608

2434

640

2469

673

2503

707

2537

741

2571

775

1700

2439

631

2474

665

2507

700

2540

736

2573

772

2606

807

2639

842

1800

2518

691

2551

728

2583

765

2615

802

2647

838

2680

873

2713

908

1900

2600

757

2631

794

2663

832

2694

868

2726

904

2759

940

2791

975

2000

2683

827

2715

864

2746

901

2777

937

2809

972

2841

1008

2873

1043

2100

2770

899

2800

935

2831

971

2863

1006

2894

1041

2926

1077

2958

111

2200

2859

970

2889

1005

2920

1040

2951

1076

2983

1111

3014

1146

3046

1181

2300

2950

1040

2981

1076

3012

1111

3043

1146

3074

1182

- - -

2400

3045

1111

3075

- - -

2500

- - -

Summary of Contents for LCM036

Page 1: ...ors Page 22 Cooling Operation Page 25 INSTALLATION INSTRUCTIONS LGM LCM036 048 060 074 3 4 5 and 6 Ton GAS AND COOLING PACKAGED UNITS 508108 01 1 2021 CAUTION As with any mechanical equipment contact...

Page 2: ...3 29 737 7 178 BOTTOM RETURN AIR OPENING BOTTOM CONDENSATE OUTLET 25 3 4 654 BOTTOM POWER ENTRY 3 X 8 76 X 203 18 3 8 467 19 1 2 495 5 1 2 140 FORKLIFT SLOTS Front Back and Blower End HORIZONTAL RETUR...

Page 3: ...L GAS VALVE BURNERS COMBUSTION AIR INDUCER BLOWER DIRECT DRIVE TXV UNIT CONTROLLER REHEAT COIL OPTIONAL COIL GUARDS OPTIONAL LCM036 048 060 074 PARTS ARRANGEMENT 8 8 8 8 ELECTRIC HEAT Optional EVAPORA...

Page 4: ...recycling or reclaiming must be followed Fines and or incar ceration may be levied for non compliance WARNING Electric shock hazard and danger of explosion Can cause injury death or product or propert...

Page 5: ...The roof mounting frame should be square and level to 1 16 per linear foot 5mm per linear meter in any direction 3 Duct must be attached to the roof mounting frame and not to the unit supply and retur...

Page 6: ...the separately ordered horizontal air discharge kit Place the kit panel over the downflow return air opening 4 Remove and retain the barometric relief dampers and lower hood FIGURE 3 DOWNFLOW RETURN...

Page 7: ...e of the mullion FIGURE 7 CONDENSATE DRAIN MULLION Two hinge screws must be removed in addition to the mullion screws See figure 8 FIGURE 8 CONDENSATE DRAIN MULLION REMOVE TWO SCREWS UNITS WITH HINGED...

Page 8: ...the unit gas connection must be as shown in table 1 TABLE 1 OPERATING PRESSURE AT GAS CONNECTION w c Natural Gas LP Propane Gas Min Max Min Max 036 074 4 5 10 5 11 13 When making piping connections a...

Page 9: ...for gas leaks CAUTION Some soaps used for leak detection are corrosive to certain metals Carefully rinse piping thoroughly after leak test has been completed Do not use matches candles flame or othe...

Page 10: ...inal to the 208V terminal Place the insulated terminal cover on the unused 240V terminal 2 Route power through the bottom power entry area and connect to L1 L2 and L3 on the top of K1 in control area...

Page 11: ...ic thermostats If using other temperature control devices or energy management systems see instructions and wiring diagram provided by manufacturer IMPORTANT Terminal connections at the wall plate or...

Page 12: ...onductors with overall shield Belden type 8760 or 88760 plenum or equivalent Connect both cable shield drain wires to the Unit Controller as shown in figure 17 FIGURE 17 FIELD WIRING REHEAT UNITS Usin...

Page 13: ...witch Voltage must be within range listed on nameplate If not consult power company and have voltage condition corrected before starting unit 5 Make sure filters are new and in place before start up B...

Page 14: ...oling typically 60 of full load CFM TABLE 4 DIRECT DRIVE PARAMETER SETTINGS Parameter Factory Setting Field Setting Description 036 048 060 074 Note Any changes to Smoke CFM setting must be adjusted b...

Page 15: ...84 326 2024 354 2062 380 2100 403 2137 426 2174 448 2211 474 2248 499 2285 525 2322 553 2359 582 1700 2007 319 2045 346 2083 373 2120 399 2157 423 2193 445 2229 466 2264 489 2300 516 2336 544 2372 573...

Page 16: ...2067 396 2109 425 2151 453 2193 481 2235 507 2277 532 2318 558 2358 585 2397 614 1700 1987 321 2033 352 2078 382 2122 412 2163 441 2204 469 2244 498 2286 525 2327 551 2368 578 2408 606 2446 638 2484...

Page 17: ...04 458 2245 484 2286 511 2327 538 2366 567 2403 598 1800 1998 318 2041 347 2085 375 2128 402 2171 427 2213 451 2254 475 2294 500 2334 528 2374 557 2412 588 2449 621 2484 655 1900 2102 341 2143 371 218...

Page 18: ...81 2397 609 2434 638 1700 2030 345 2078 377 2126 409 2170 439 2212 469 2253 498 2294 526 2336 553 2376 579 2415 606 2453 635 2490 668 2525 703 1800 2141 391 2187 423 2231 454 2274 484 2315 514 2356 54...

Page 19: ...TA Air Volume cfm 1 Effective Throw ft RTD11 95S FD11 95S 2600 24 29 19 24 2800 25 30 20 28 3000 27 33 21 29 1 Effective throw based on terminal velocities of 75 ft per minute FACTORY INSTALLED OPTION...

Page 20: ...ing pressures Pressures are listed for sea level applications at 80 F dry bulb and 67 F wet bulb return air 4 Compare the normal operating pressures to the pressures obtained from the gauges Minor var...

Page 21: ...on each unit Optional controls are identified on wiring diagrams by arrows at junction points 1 High Pressure Switch S4 The compressor circuit is protected by a high pressure switch which opens at 640...

Page 22: ...n addition the Unit Controller uses these temperatures to initiate alarms such as loss of condenser or evaporator airflow and loss of charge Each thermistor must be specifically placed for proper unit...

Page 23: ...THERMISTOR LOCATION RT42 46 060U 074 FOUR ROW EVAPORATOR COIL VIEW FROM FRONT SIDE OF UNIT FIGURE 22 RT42 RT46 DISTRIBUTOR TUBE CLAMP THERMISTOR TO BARE COPPER NOT THE DISTRIBUTOR SLEEVE SUCTION LINE...

Page 24: ...Page 24 LGM LCM036 048 060 074 THERMISTOR LOCATION RT44 RT48 036 048 CONDENSER COIL VIEW FROM FRONT SIDE OF UNIT FIGURE 23 RT48 RT44 LIQUID LINE EXIT...

Page 25: ...mper has been at full open for three minutes Note Free cooling is locked out when a dehumidification demand is received The unit operates in dehumidification mode as if the outdoor air is not suitable...

Page 26: ...y to repair it Call a qualified service technician Force or attempted repair may result in a fire or explosion WARNING Danger of explosion Can cause injury or death Do not attempt to light manually Un...

Page 27: ...shes Ignition lockout from too many trials 4 Flashes Ignition lockout from too many flame losses within single call for heat 5 Flashes Control hardware fault detected C Limit Controls Limit controls a...

Page 28: ...energized Pressure can be checked on the reheat line pressure tap Pressure on the reheat line should match discharge pressure closely in reheat mode Default Reheat Operation During reheat mode free co...

Page 29: ...EHEAT VALVE RETURN AIR CONDENSER COIL OUTDOOR AIR COMPRESSOR SUPPLY AIR CHECK VALVE EXPANSION VALVE FIGURE 25 COIL COOLING MODE REFRIGERANT ROUTING REHEAT COIL EVAPORATOR REHEAT VALVE RETURN AIR CONDE...

Page 30: ...filter frame when reinstalling filters See figure 27 NOTE Filters must be U L C certified or equivalent for use in Canada B Lubrication All motors are lubricated at the factory No further lubrication...

Page 31: ...TUH 5 BURNERS 65 000 BTUH 3 BURNERS SENSOR IGNITOR SENSOR IGNITOR SENSOR IGNITOR D Combustion Air Inducer Gas Units A combustion air proving switch checks combustion air inducer operation before allow...

Page 32: ...season Clean using mild detergent or commercial coil cleaner Flush coil and condensate drain with water taking care not to get insulation filters and return air ducts wet G Condenser Coil Clean conden...

Page 33: ...et See figure 34 Retain the screw to secure the back side of the ionizer bracket 2 Remove two screws securing the front side of the ionizer bracket and pull out of unit and clean brushes 3 Replace ion...

Page 34: ...touching the lamps Then carefully remove the old lamp from the lamp holder clips 7 Wear cotton gloves or use a cotton cloth when handling the new lamp Place the new lamp in the holder clips of the UV...

Page 35: ...and federal disposal laws Refer to www lamprecycle org or call 800 953 6669 Proper Clean up Technique in Case of Lamp Breakage Wear protective gloves eye wear and mask Sweep the broken glass and debr...

Page 36: ...ption installed Change the appropriate character in the configuration I D For example when an economizer is installed using a single enthalpy sensor change configuration I D 1 the second character to...

Page 37: ...Stage D Unconfigured U Power Exhaust Control 4 Not Installed N Damper Position A A34 Pressure Sensor C 5 Network Module N Not Installed L LonTalk Lennox 6 Blower Variable Frequency Drive Bypass N Not...

Page 38: ...lled 1 Air Flow Proving Switch S52 3 Overflow Switch S149 S179 4 Reserved Reserved for future use N 7 Zone Bypass Damper N Not Installed Y Installed FIGURE 40 10 Reserved N Not Installed Not Installed...

Page 39: ...voltage __________ Cooling Checks Compressor Rotation Ambient Temp ________Return Air Temp ________ Supply Air Temp ________ Compressor Amps Compressor Volts Pressures Condenser Fan Amps CC Heater Am...

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Lennox LCM036, Installation Instructions Manual

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