background image

Packaged rooftop units 

with integrated gas burner

8

Anchorage for antivibrators

When selecting antivibration mounts both the unit weight and reactions 

in the supports must be taken in account and are featured in the 

following table.

48EN/

EH

Assembly

(mm)

(mm)

Reactions in the supports (kg)

Weight 

(kg)

R1

R2

R3

R4

R5

R6

241

MO

1545 2095 100

349

271

119

368

290

1497

MS

1545 2095 133

384

290

121

372

278

1578

MA / MC0

1545 2095 170

433

323

121

384

274

1705

321

MO

1545 2095 105

369

286

126

389

306

1581

MS

1545 2095 140

405

306

127

392

293

1662

MA / MC0

1545 2095 178

454

339

127

403

288

1789

361

MO

1545 2095

114

400

311

137

422

333

1717

MS

1545 2095 152

438

331

137

424

317

1798

MA / MC0

1545 2095 192

489

365

136

433

310

1925

242

MO

1845 2095

69

412

378

70

413

380

1723

MS

1845 2095 102

450

404

66

414

368

1805

MA / MC0

1845 2095 137

498

438

63

424

364

1925

322

MO

1845 2095

72

432

397

74

433

398

1806

MS

1845 2095 107

471

423

69

434

385

1888

MA / MC0

1845 2095 143

520

457

66

443

380

2008

362

MO

1845 2095

78

464

427

79

466

428

1942

MS

1845 2095

114

505

453

74

465

413

2024

MA / MC0

1845 2095 153

555

488

70

473

406

2144

420

M0

2290 2095 250

536

306

309

595

365

2360

MS

2290 2095 298

582

328

312

596

342

2458

MA / MC0

2290 2095 409

689

373

337

616

300

2724

485

M0

2290 2095 254

545

311

314

605

371

2402

MS

2290 2095 304

592

334

317

606

347

2500

MA / MC0

2290 2095 415

699

378

342

626

305

2766

540

M0

2290 2095 260

558

318

322

620

380

2459

MS

2290 2095 310

605

341

325

620

355

2557

MA / MC0

2290 2095 424

714

386

349

639

311

2823

600

M0

2290 2095 266

570

325

329

633

388

2512

MS

2290 2095 317

618

348

331

633

363

2610

MA / MC0

2290 2095 432

727

394

355

651

317

2876

A

M12

A

B

Minimum free space for commissioning and maintenance operations

1500

mm

1500

mm

1500

mm

1500

mm

Summary of Contents for 48EH

Page 1: ...ERATION AND MAINTENANCE INSTRUCTIONS 48EN EH Nominal cooling capacity 58 9 135 5 kW Nominal heating capacity 62 2 143 4 kW 50 Hz Packaged rooftop cooling only heat pumps with integrated gas burner Ori...

Page 2: ...ommissioning and maintenance operations 8 7 Gas Burner 9 Operating principle 9 Control of the gas burner 10 8 Safety elements 11 Safety devices in the gas burner 11 Safety devices in the 48EN EH unit...

Page 3: ...lation and reliable operation Space 48EN Series Autonomous air air cooling units with a compact horizontal rooftop design with a built in gas burner Space 48EH Series Autonomous reversible air air hea...

Page 4: ...5 900 18 000 18 200 20 400 24 000 Available static pressure mm w c 12 12 12 12 12 12 12 12 15 15 Type Centrifugal Number no turbines 2 2 Motor output kW 2 x 1 5 2 x 2 2 2 x 3 2 x 1 1 2 x 2 2 2 x 2 2 2...

Page 5: ...ents during installation commissioning or maintenance it is required to take into consideration the units specifications refrigerated circuits under pressure refrigerant presence voltage presence and...

Page 6: ...said vapours Although the R 410A is not flammable when in contact with a flame or hot spot it can decompose thus producing fluorhydric acid HF and fluophosgene COF2 which are highly toxic and corrosiv...

Page 7: ...re can withstand the weight of the unit Since the unit is designed to work outdoors some specific installation norms must be followed The unit will be located on the roof of the premises If it is fore...

Page 8: ...02 450 404 66 414 368 1805 MA MC0 1845 2095 137 498 438 63 424 364 1925 322 MO 1845 2095 72 432 397 74 433 398 1806 MS 1845 2095 107 471 423 69 434 385 1888 MA MC0 1845 2095 143 520 457 66 443 380 200...

Page 9: ...lectrode nozzle Control device On off signal Burner fan EVP pilot light flame EV1 1st electromagnetic valve gas EV2 2nd electromagnetic valve gas A B C D E F Operation of the air gas premix The air an...

Page 10: ...imit the power supplied by the burner This avoids the stratification of the hot air masses and that the outlet air temperature exceeds a maximum safety level 55 C by default which will cause the burne...

Page 11: ...or the modulation are outside the range Failure in the fan motor F4 F5 F6 Unused F7 No serial communication The remote control is disconnected F8 The flame control device does not work The flame contr...

Page 12: ...utomatic reactivation It is installed in the auxiliary electric panel Anti fire safety device This safety device integrated in the control shuts down the unit if the probe located in the return detect...

Page 13: ...ces etc refer to The information supplied in this document table of technical characteristics Data plate The wiring diagram and the legend supplied with the unit The CARRIERrtc electronic control broc...

Page 14: ...burns Note The gas burner chimney is not supplied with the unit Its design and installation is the responsibility of the engineer and must comply with all the directives and regulations in force in t...

Page 15: ...ibration transmission Air ducts connections Checks in the axial fans Before commissioning check the blade rotation direction and that the axis turns without strokes nor vibrations Once running check t...

Page 16: ...Condensates outlet Before commissioning check the blade rotation direction and that the axis turns without strokes nor vibrations Once running check the operation conditions pressures flows and consum...

Page 17: ...unit and all the components used This will be very helpful for maintenance and repairs to the installation Check that the electrical power supply matches the unit voltage and that its value lies with...

Page 18: ...means this has to be taken into account in the selection of higher pressure fans optional or in the substitution of the standard pulley set with a new set that generates a higher turn speed to the pa...

Page 19: ...ually Depending on the installation conditions the filter aspect must be examined to define the cleaning periodicity Gravimetric filters Cleaning the filtering mesh can be done with a household vacuum...

Page 20: ...f the charge Note Both the oil type as well as the volume needed for each model are stated in the Technical characteristic tables in chapter 3 Caution Before starting any maintenance operations ensure...

Page 21: ...n Burner Safety Devices Open the valve unblock the control and check that the burner is operating correctly 8 The safety thermostat and the air differential pressostat With the burner in operation ope...

Page 22: ...rature of air or water in condenser very low air or water flow very high adjust flow f Repair Compressor does not start does not make noise humming a No power b The contacts of a control element are o...

Page 23: ......

Page 24: ...Order No 10051 03 2015 Supersedes order No New Manufactured for CARRIER in Spain The manufacturer reserves the right to change the specification without prior notice Printed in the European Union...

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