Lennox LCM036 Installation Instructions Manual Download Page 16

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Page 16

BLOWER DA

3 & 4 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.

HORIZONT

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

673

- - -

500

754

861

- - -

600

838

942

1037

- - -

700

928

1027

111

1192

104

- - -

800

1023

111

1204

106

1276

1339

134

1401

150

- - -

900

1125

1212

105

1293

121

1362

136

1424

152

1485

171

1547

190

- - -

1000

1232

104

131

121

1386

138

1452

155

1512

174

1571

195

1631

216

1689

239

1744

264

- - -

1100

1341

121

1413

139

1481

158

1544

178

1602

200

1660

223

1717

246

1772

271

1823

298

1868

326

1910

352

- - -

1200

1452

141

1518

161

1580

182

1638

205

1694

230

1750

255

1804

281

1856

308

1903

335

1946

363

1988

389

2029

412

2072

434

1300

1564

164

1623

187

1680

211

1735

237

1788

265

1841

292

1893

319

1941

347

1985

375

2026

403

2067

428

2108

451

2150

474

1400

1673

192

1728

219

1781

247

1832

276

1882

305

1931

334

1979

362

2024

391

2066

418

2107

445

2147

469

2188

493

2230

516

1500

1778

229

1829

259

1879

289

1928

320

1974

350

2020

379

2064

408

2107

436

2149

463

2190

488

2231

512

2272

537

2312

563

1600

1881

274

1930

304

1978

336

2024

367

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

673

1800

2096

367

2139

397

2182

426

2224

456

2264

484

2303

512

2344

540

2384

568

2424

596

2463

626

2501

660

2537

698

2571

738

1900

2208

396

2248

429

2288

461

2328

493

2367

524

2406

556

2445

587

2484

618

2522

650

2558

686

2593

726

2626

770

2657

814

2000

2318

437

2356

474

2394

511

2431

549

2469

585

2505

622

2542

659

2579

695

2614

733

2648

773

2681

814

2712

857

2743

900

2100

2424

505

2461

546

2497

587

2533

628

2568

668

2603

708

2637

748

2672

788

2706

828

2738

867

2770

906

2802

945

2833

983

2200

2530

582

2566

623

2602

664

2636

705

2670

745

2703

786

2737

826

2770

866

2803

905

2835

944

2866

983

2897

1021

2929

1060

2300

2638

659

2672

700

2707

741

2740

781

2773

822

2805

862

2838

902

2870

942

2902

982

2934

1021

2965

1059

2996

1098

3027

1136

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

- - -

1200

2192

497

2234

522

2275

549

- - -

1300

2271

542

2312

569

2353

597

2393

626

2431

658

- - -

1400

2353

591

2392

621

2431

652

2470

683

2507

717

2543

752

2577

788

1500

2436

646

2474

679

2512

712

2549

746

2585

781

2620

816

2653

852

1600

2520

709

2557

744

2593

779

2628

815

2663

851

2696

887

2730

923

1700

2605

778

2640

815

2675

852

2709

889

2742

926

2775

963

2807

999

1800

2690

857

2723

895

2757

933

2790

970

2822

1008

2854

1044

2886

1081

1900

2775

941

2808

979

2841

1016

2873

1053

2905

1090

2937

1126

2969

1162

2000

2865

1021

2898

1058

2930

1096

2963

1132

2995

1168

3027

1204

3059

1240

2100

2961

1097

2993

1135

3025

1172

3057

1208

3089

1245

- - -

2200

3059

1173

3091

121

3122

1248

3154

1284

- - -

2300

- - -

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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