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6

Physical data

Electrical data

30GH/GZ

040

045

050

060

085

095

100

120

130

145

150

160

170

190

220

245

Power wiring
Nominal power supply

V-ph-Hz 400-3-50

Voltage range

V

360-440

Auxiliary circuit (heaters)

V-ph-Hz 230-1-50

Power input

W

570

570

570

570

980

980

1160 1160 1460 1460 1460 1460 1640 1820 2000 2000

Max. unit power input (comp. + fans)**
30GH

kW

45

59

70

95

117

142

162

189

209

209

237

237

257

304

349

379

30GZ

kW

41

55

64

87

110

134

152

174

192

202

228

225

241

282

328

358

Max. unit power input with separate supply (possibible on 30G 170-245)
30GH circuit A

kW

-

-

-

-

-

-

-

-

-

-

-

-

142

175

175

190

30GH circuit B

kW

-

-

-

-

-

-

-

-

-

-

-

-

115

129

175

190

30GZ circuit A

kW

-

-

-

-

-

-

-

-

-

-

-

-

141

165

164

179

30GZ circuit B

kW

-

-

-

-

-

-

-

-

-

-

-

-

100

117

164

179

Fan power supply

V-ph-Hz 400-3-50

Fan power input

kW

2.3

2.3

4.6

4.6

7

7

7

9

9

9

12

12

12

14

14

19

Max. starting current (comp. + fans)
30GH/GZ standard unit

A

144

186

219

296

476

518

553

601

636

636

684

684

719

802

879

934

30GH/GZ with part-winding start

A

std

std

std

std

338

380

415

463

498

498

546

546

581

664

741

796

30GH/GZ with separate power supply circuit A**

A

-

-

-

-

-

-

-

-

-

-

-

-

517

574

574

601

30GH/GZ with separate power supply circuit B**

A

-

-

-

-

-

-

-

-

-

-

-

-

469

497

574

601

Max. unit current drawn (comp. + fans)*
30GH

A

78

102

120

166

204

250

280

333

364

364

416

416

447

530

608

666

30GZ

A

72

97

113

153

194

236

268

306

338

356

401

396

424

496

577

630

30GH with separate power supply circuit A**

A

-

-

-

-

-

-

-

-

-

-

-

-

250

304

304

333

30GH with separate power supply circuit B**

A

-

-

-

-

-

-

-

-

-

-

-

-

197

229

304

333

30GZ with separate power supply circuit A**

A

-

-

-

-

-

-

-

-

-

-

-

-

248

290

289

315

30GZ with separate power supply circuit B**

A

-

-

-

-

-

-

-

-

-

-

-

-

176

206

289

315

* Compressor and fan, at maximum unit operating values
** Unit sizes 30GZ 170-245 have a separate power supply per circuit. All currents are given at nominal voltage

30GH/GZ

040

045

050

060

085

095

100

120

130

145

150

160

170

190

220

245

Net nominal cooling capacity*
30GH (R-22)

kW 107

124

156

190

255

300

344

396

442

457

498

516

562

631

729

808

30GZ (R-407C)

kW 102

118

150

181

244

287

329

379

417

437

476

499

538

603

697

773

Operating weight

kg

1380

1445

1710

1780

3012

3067

3439

3884

4330

4452

5010

5172

5592

6442

6742

7992

Refrigerant charge R-22
Circuit A

kg

15

15

17.2

19.5

33.2

34.2

29.4

37

48.4

46.5

53.1

59.8

59.8

60

60

67.4

Circuit B

kg

15

15

17.2

19.5

19

23.7

29.4

37

32.3

35.1

38.9

47.4

49.3

57

60

67.4

Refrigerant charge R-407C
Circuit A

kg

16.5

16.5

19

21.5

24

34

28

36

47

46

53

59

59

59

59

66

Circuit B

kg

16.5

16.5

19

21.5

15

24

28

36

32

35

38.5

46

48

56

59

66

Compressors

Semihermetic, 4 or 6 cylinders 24.2 r/s (1450 rpm)

Circuit A

1

1

1

1

2

2

2

2

3

3

3

3

3

4

4

4

Circuit B

1

1

1

1

1

1

2

2

2

2

2

2

3

3

4

4

Control type

PRO-DIALOG control

No. of capacity stages

4

4

4

4

6

6

4

4

5

5

5

5

6

7

8

8

Minimum capacity

%

25

33

33

33

20

22

22

25

17

17

20

20

14

12

10

12.5

Evaporator

Direct-expansion, multi-tube shell, two circuits

Net water volume

l

55

55

63

63

92

92

154

154

199

242

199

242

242

242

242

242

Water connections

Flat flanges PN 16, in accordance with NFE 29 203

Inlet/outlet

DN80 DN80 DN80 DN80 DN100 DN100 DN125 DN125 DN150 DN150 DN150 DN150 DN150 DN150 DN150 DN150

Drain (NPT)

in

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

1/2

Max. water side operating pressure kPa 1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

1000

Condenser

Copper tubes and aluminium fins

Fans

Shrouded axial FLYING-BIRD fan

Quanitity

2

2

4

4

6

6

6

8

8

8

10

10

10

12

12

16

Total air flow

l/s

9944

9944

19890 19890 29830 29830 29830 39780 39780 39780 49720 49720 49720 59670 59670 79560

Speed

r/s 12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

12.5

* Standard Eurovent conditions: Evaporator entering/leaving water temperature 12°C and 7°C. Condenser entering air temperature 35°C.
Net cooling capacity = gross cooling capacity minus the water pump heat against the internal evaporator pressure drop.

Electrical data notes (cont.)

30GZ units have a single power connection point (except 30GZ 170-245 which have two connection
points).

A separate power source (230 V, 1 ph, 50 Hz) that does not exceed the main switch capacity is
required to power the compressor crankcase heater circuit. This source must be supplied from a
transformer. It must not be supplied from a phase + neutral supply (for neutral systems).

The control box includes the following standard features:
-

Starter and motor protection devices for each compressor and the fan(s)

-

Control devices

Field connections:
All connections to the system and the electrical installations must be in full accordance  with all
applicable local codes.

The Carrier 30GZ chillers are designed and built to ensure conformance with these codes. The
recommendations of European standard EN 60 204-1 (machine safety - electrical machine
components - part 1: general regulations) are specifically taken into account, when designing the
electrical equipment.

NOTES:

Generally the recommendations of IEC 364 are accepted as compliance with the requirements of the
installation directives. Conformance with EN 60 204 is the best means of ensuring compliance with
the Machines Directive § 1.5.1.

Annex B of EN 60204-1 describes the electrical characteristics used for the operation of the

machines.

1.

The operating environment for the 30GZ chillers is specified below:

Environment* - Environment as classified in EN 60 721:
-

outdoor installation*

-

ambient temperature range: -18°C to +46°C, class 4K4H*

-

altitude: 

 2000 m

-

presence of hard solids, class 4S2 (no significant dust present)

-

presence of corrosive and polluting substances, class 4C2 (negligible)

-

vibration and shock, class 4M2

Competence of personnel, class BA4* (trained personnel - IEC 364)

2.

Power supply frequency variation: ± 2 Hz.

3.

The neutral (N) line must not be connected directly to the unit (if necessary use a transformer).

4.

Overcurrent protection of the power supply conductors is not provided with the unit.

5.

The optional factory-installed circuit breaker is of type “a” (EN 60 204-1 § 5.3.2).

NOTE: If particular aspects of an actual installation do not conform to the conditions described above, or
if there are other conditions which should be considered, always contact your local Carrier representative.

* The required protection level for this class is IP43BW (according to reference document IEC 529). All
30GZ units are protected to IP44CW and fulfill this protection condition.

Summary of Contents for 30GH 040

Page 1: ...and maintenance instructions 30GH 040 245 30GZ 040 245 Air cooled liquid chillers 50 Hz Carrier is participating in the Eurovent Certification Programme Products are as listed in the Eurovent Directo...

Page 2: ...hecks 10 Actual start up 10 Servicing refrigeration components 11 General maintenance 11 Liquid refrigerant charging 11 Compressors 12 Compressor protection circuit board STARTERGUARD 12 Heat exchange...

Page 3: ...temperature C Pressure drop air kPa Pressure drop water kPa Discharge air pressure Pa Fan speed r s or rpm Fan motor input Ph 1 V Ph 2 V Ph 3 V Ph 1 V Ph 2 V Ph 3 V Ph 1 V Ph 2 V Ph 3 V Ph 1 V Ph 2 V...

Page 4: ...85 145 Do not obstruct 30GH GZ A B C D E F G 040 045 2450 1870 1912 2500 1200 500 1200 050 060 2900 2156 2060 2500 1200 500 1200 085 100 3404 2328 2471 1600 1800 1600 1800 120 145 4322 2328 2471 1600...

Page 5: ...not obstructed At least two sides of the units must be free from obstructions to ensure proper air flow If several units are installed next to each other ensure that the space in between the units is...

Page 6: ...150 DN150 Drain NPT in 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 1 2 Max water side operating pressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000...

Page 7: ...ing of the liquid water or brine Refer to the examples below NOTE The compressor must not restart more than 6 times in an hour INSTALLATION SAFETY CONSIDERATIONS Installation start up and servicing th...

Page 8: ...Siting Before siting the unit check that the permitted loading at the site is adequate or that appropriate strenghtening measures have been taken the surface is horizontal flat and intact there is ade...

Page 9: ...valves close to the evaporator in the entering and leaving water lines Use flexible connections to reduce the transmission of vibration to the pipework Insulate all pipework after testing for leaks b...

Page 10: ...he lubricating oil from absorbing refrigerant Check the operation of all accessories chilled water circulating pumps air handlers and other equipment connected to the evaporator Follow the individual...

Page 11: ...H or 12 K 30GZ of subcooling as the liquid refrigerant enters the expansion valve The units 30GH GZ 040 245 use refrigerant For your information we are reproducing here some extracts from the official...

Page 12: ...xchangers Evaporator Protection devices Freeze up prevention thermostat The evaporator is protected against freeze up The protection is provided by two sensors installed in the unit Significant underc...

Page 13: ...r Carrier distributor Replacing cooler tubes Retubing must be done only by a properly trained service engineer Most standard practices can be applied but for cooler tubes a 5 crush allowance is made f...

Page 14: ...or rotating water jets are strictly forbidden Correct and frequent cleaning approximately every three months will prevent 2 3 of the corrosion problems Fan motor replacement This presents no special p...

Page 15: ...efective compressor Refrigerant losses Refrigerant losses Low water flow in the evaporator Blocked expansion valve Blocked filter drier Defective high pressure switch Defective fan s Low water flow in...

Page 16: ...7 Supersedes order No 13187 76 July 1996 Printed on Totally Chlorine Free Paper Manufacturer reserves the right to change any product specifications without notice Printed in the Netherlands Manufactu...

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