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Page 27

Blower Performance

NOTE − All air data is measured external to unit with 1 in. cleanable filter (not furnished − field provided) in place.

G50DF−24A−045 PERFORMANCE

External

Static

Pressure

in. w.g.

Air Volume / Watts at Different Blower Speeds

High

Medium

Low

cfm

Watts

cfm

Watts

cfm

Watts

0.00

1200

417

1060

367

830

278

0.05

1185

410

1040

360

820

274

0.10

1165

402

1025

353

810

270

0.15

1145

396

1010

346

795

265

0.20

1125

390

990

338

775

260

0.25

1105

382

980

335

765

257

0.30

1080

374

965

331

750

254

0.40

1020

357

920

319

710

244

0.50

960

342

875

306

650

234

0.60

900

330

810

290

620

231

0.70

815

313

690

272

565

221

0.80

685

289

620

259

465

203

0.90

560

271

510

238

395

190

G50DF−36A−070 PERFORMANCE

External

Static

Pressure

in. w.g.

Air Volume / Watts at Different Blower Speeds

High

Medium−

High

Medium−

Low

Low

cfm Watts cfm Watts cfm Watts cfm Watts

0.00

1475 616

1345 554

1150 495

990

415

0.05

1450 606

1320 543

1140 481

985

407

0.10

1425 595

1300 532

1125 466

975

398

0.15

1395 585

1275 521

1115 452

970

390

0.20

1375 574

1255 510

1105 437

965

381

0.25

1345 563

1230 494

1090 428

955

371

0.30

1320 552

1205 478

1075 418

945

360

0.40

1250 528

1150 455

1040 395

920

346

0.50

1200 508

1095 432

1000 374

880

331

0.60

1110 475

1035 409

950

354

830

313

0.70

1030 455

970

390

855

338

720

280

0.80

960

434

875

359

735

299

665

266

0.90

770

389

715

321

665

278

590

244

G50DF−36B−090 PERFORMANCE

External

Static

Pressure

in. w.g.

Air Volume / Watts at Different Blower Speeds

High

Medium−

High

Medium−

Low

Low

cfm Watts cfm Watts cfm Watts cfm Watts

0.00

1600

608

1410

526

1165

436

965

355

0.05

1580

599

1400

518

1165

428

965

351

0.10

1560

589

1390

509

1160

420

970

346

0.15

1530

573

1370

497

1155

413

965

341

0.20

1495

556

1350

485

1150

406

965

335

0.25

1465

544

1325

473

1135

398

955

329

0.30

1430

532

1300

460

1125

389

945

323

0.40

1370

509

1250

438

1095

373

935

313

0.50

1295

482

1200

420

1055

355

900

302

0.60

1215

456

1140

397

1010

343

860

285

0.70

1140

437

1055

371

915

313

800

272

0.80

1000

401

950

342

850

295

730

251

0.90

900

374

820

313

740

272

− − −

− − −

G50DF−48C−090 PERFORMANCE

External

Static

Pressure

in. w.g.

Air Volume / Watts at Different Blower Speeds

High

Medium−

High

Medium−

Low

Low

cfm Watts cfm Watts cfm Watts cfm Watts

0.00

2040

749

1850

657

1595

562

1325

466

0.05

2000

727

1825

638

1575

547

1340

460

0.10

1955

704

1800

619

1555

532

1350

453

0.15

1920

692

1770

602

1540

518

1340

441

0.20

1885

679

1740

585

1525

503

1330

428

0.25

1845

662

1700

568

1500

488

1300

414

0.30

1800

645

1665

551

1475

473

1270

399

0.40

1695

606

1585

517

1415

448

1225

378

0.50

1600

570

1490

485

1335

414

1170

360

0.60

1495

540

1405

457

1250

389

1110

337

0.70

1380

509

1300

426

1165

367

1025

316

0.80

1250

478

1160

390

1025

331

− − −

− − −

0.90

1095

439

1030

360

925

307

− − −

− − −

Summary of Contents for G50DF(X)?24A?045

Page 1: ...formance 27 Service 28 Repair Parts List 30 Planned Service 30 SureLight Integrated Control Diagnostic Codes 31 SureLight Control Troubleshooting 32 G50DF X Start Up Performance Check List 35 WHAT TO...

Page 2: ...4 7 8 124 Right 2 1 4 57 Left 40 1016 3 3 4 95 5 8 16 AIR FLOW 5 8 16 3 4 19 19 1 2 495 5 8 16 B 5 8 16 5 8 16 Supply Air Supply Air Model No A B C D in mm in mm in mm in mm G50DF X 24A 045 G50DF X 36...

Page 3: ...Flue Collector Box Gasket Combustion Air Inducer Gasket Manifold Burner Gas Valve Flame Rollout Switches Flame Sensor Primary Limit Ignitor Heat Exchanger Ignitor Bracket Combustion Air Pressure Swit...

Page 4: ...cal plumbing or waste water codes and other applicable local codes Adequate clearance must be made around the air open ings into the vestibule area In order to ensure proper unit operation combustion...

Page 5: ...alled in the system and must be maintained during construction D Air filters must be replaced upon construction comple tion D The input rate and temperature rise must be set per the furnace rating pla...

Page 6: ...ents as well as all local codes CAUTION Insufficient combustion air can cause headaches nausea dizziness or asphyxiation It will also cause excess water in the heat exchanger resulting in rust ing and...

Page 7: ...have a minimum free area of 1 square inch 645 mm2 per 1 000 Btu 29 kW per hour of total input rating of all gas fired equipment in the confined space Each opening must be at least 100 square inches 64...

Page 8: ...e square inch 645 mm2 per 4 000 Btu 1 17 kW per hour of the total input rating of all equip ment in the enclosure CHIMNEY OR GAS VENT WATER HEATER OUTLET AIR VENTILATION LOUVERS Each end of attic INLE...

Page 9: ...et 24 5 11M62 See table 2 for opening size to cut in floor CAUTION The furnace and additive base shall not be installed directly on carpeting tile or other combustible ma terial other than wood floori...

Page 10: ...it front The unit must be level NOTE 1 3 hp blower motors are equipped with four flex ible mounting legs and 1 2 hp blower motors are equipped with three flexible legs and one rigid leg The rigid leg...

Page 11: ...r any other gas fueled ap pliance i e water heater or carbon monoxide producing device i e wood fireplace is installed When return air is drawn from a room a negative pres sure is created in the room...

Page 12: ...If the existing chimney will not accommodate a B1 vent or an insulated flexible vent pipe liner either the chimney must be rebuilt to accommodate one of these liners or an alternate approved venting m...

Page 13: ...chimney passageway must be checked periodically to ensure that it is clear and free of obstructions Do not install a manual damper barometric draft regulator or flue restrictor between the furnace and...

Page 14: ...stened by screws or other approved means 12 When the vent connector used for Category I ap pliances must be located in or pass through a crawl space or other areas which may be cold that portion of th...

Page 15: ...22 339 5 22 65 30 130 39 219 49 330 10 29 59 40 121 51 206 64 315 15 35 53 48 112 61 195 76 301 20 0 0 97 0 202 0 349 0 540 2 10 75 14 149 18 250 20 377 5 21 71 29 143 38 242 47 367 10 28 64 38 133 50...

Page 16: ...225 115 337 5 51 63 75 128 102 216 144 326 10 NR NR 95 116 128 201 182 308 15 NR NR NR NR 158 186 220 290 20 0 35 96 54 200 78 346 114 537 2 37 74 56 148 78 248 113 375 5 50 68 73 140 100 239 141 363...

Page 17: ...1 21 50 33 89 47 142 64 220 2 22 53 35 96 49 153 66 235 3 24 55 36 102 51 163 68 248 20 1 21 54 33 99 46 157 62 246 2 22 57 34 105 48 167 64 259 3 23 60 35 110 50 176 66 271 30 1 20 62 31 113 45 181...

Page 18: ...rat ing and the other appliances which are not operating re main connected to the common venting system If the venting system has been installed improperly you must correct the system as indicated in...

Page 19: ...ng must be resistant to the actions of liquified petro leum gases NOTE Install a 1 8 inch NPT plugged tap in the field piping upstream of the gas supply connection to the unit The tap must be accessib...

Page 20: ...sting pressure of gas lines gas valve must be disconnected and isolated See figure 15 Gas valves can be damaged if subjected to pressures greater than 1 2 psig 3 48 kPa 14 inches w c MANUAL MAIN SHUT...

Page 21: ...rated up to one amp can be connected to this terminal with the neutral leg of the circuit being connected to any of the NEUTRAL terminals See figure 20 for control board configuration This terminal is...

Page 22: ...V HUM Blower Cooling Speed 120VAC Blower Heating Speed 120VAC Unused Blower Not energized Continuous Low Blower Speed Accessory Terminal 120VAC Transformer 120VAC Input 120VAC Heat Only Accessory 120V...

Page 23: ...Page 23 G50DF X Schematic Wiring Diagram FIGURE 21...

Page 24: ...is no call for heat on units with this ignition system WARNING If you do not follow these instructions exactly a fire or explosion may result causing property damage personal injury or death Gas Valve...

Page 25: ...is not detected after first ignition trial the igni tion control will repeat steps 3 and 4 four more times before locking out the gas valve WATCHGUARD flame failure mode The ignition control will then...

Page 26: ...fter supply and return air temperatures have stabilized check the temperature rise If necessary adjust the blower speed to maintain the temperature rise within the range shown on the unit nameplate In...

Page 27: ...70 390 855 338 720 280 0 80 960 434 875 359 735 299 665 266 0 90 770 389 715 321 665 278 590 244 G50DF 36B 090 PERFORMANCE External Static Pressure in w g Air Volume Watts at Different Blower Speeds H...

Page 28: ...um High Medium Low Low cfm Watts cfm Watts cfm Watts cfm Watts 00 2475 1276 2280 987 1995 845 1690 698 10 2390 1248 2235 955 1990 829 1675 690 20 2330 1223 2180 945 1975 809 1665 675 30 2245 1192 2125...

Page 29: ...could contain carbon monoxide can be drawn into living space resulting in personal inju ry or death Filters All G50DF X filters are installed external to the unit Filters should be inspected monthly...

Page 30: ...peat procedure for each heat exchanger section 14 After each of the top heat exchanger sections has been cleaned insert the brush end of the cable snake into the bottom openings of each of the heat ex...

Page 31: ...valve Main burner cluster Main burner orifices Pressure switch Ignitor Primary limit control Flame rollout switches Secondary limit Combustion Air Inducer Gaskets Flue Box Gaskets Flue Chase Gasket Se...

Page 32: ...ailed to ignite OR limit open more than 3 minutes OR lost flame sense 5 times in one heating cycle OR pressure switch opened 5 times in one heating cycle SLOW FLASH OFF Flame sensed without gas valve...

Page 33: ...NDUCER OFF INDOOR BLOWER OFF WITH DELAY LED 1 OFF LED 2 SLOW FLASH Sequence holds until pressure switch closes or thermostat resets control NO NO YES NO IS THERE PROPER GROUND IS VOLTAGE ABOVE 75 VOLT...

Page 34: ...UP 20 SECONDS YES 4 SECOND TRIAL FOR IGNITION GAS VALVE OPENS IGNITOR ENERGIZED FOR UP TO 4 SECONDS YES FLAME STABILIZATION PERIOD GAS VALVE OFF COMBUSTION AIR INDUCER ON INDOOR BLOWER OFF HAS CONTRO...

Page 35: ...T SWITCH CLOSED CHECK TO ENSURE GAS VALVE IS DE ENERGIZED IS GAS VALVE OFF LED SLOW FLASH RATE REMAINS UNCHANGED THROUGHOUT COOLING CYCLE THERMOSTAT CALLS FOR COOLING COMPRESSOR CONTACTOR IS ENERGIZED...

Page 36: ...OR BLOWER SWITCHES TO HEAT SPEED AFTER NORMAL DELAY INDOOR BLOWER SELECTED TIME OFF DELAY BEGINS AFTER DELAY HEAT SPEED DE ENERGIZED blower remains energized during continuous fan mode G50DF X Start U...

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