30GX – NEE

Nominal cooling capacity 286-1207 kW50 Hz

The 30GX units are air-cooled chillers, designed from the ground up to meet the needs of today and tomorrow:- ecological HFC-134a refrigerant- screw compressors- compact footprint- mechanically cleanable evaporatorAll units are equipped with PRO-DIALOG Plus control to optmize the efficiency of the refrigerant circuit, and with the revolutionary FLYING BIRD fan with rotating shroud. This innovative fan considerably reduces the air circulation noise and contributes to quiet unit operation. It is made of fully recyclable composite materials.The

high outdoor temperature versions

are equipped with condensers with non-louvred double-wavy fins to reduce the fouling effect (sand, dust etc.), and with ventilated control boxes to keep the electrical components at the right temperature.

Features

Quality design and construction make the 30GX unit the preferred choice.

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Non-controlled, ozone-friendly HFC-134a refrigerant. HCF-134a is a proven, non-toxic, non-flammable refriger-ant which will have the highest usage of any new refriger-ant.

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Medium-pressure refrigerant HFC-134a minimizes stress on the compressors and ensures their long operating life.

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The 30GX units are equipped with screw compressors and with shrouded axial Flying Bird fans for extremely quiet operation and low-vibration levels.

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The 30GX units exceed the efficiency level of average industry standards for both full- and part-load operation, saving on operating costs, through lower electrical costs.

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The 30GX control is fully automatic. The leaving water temperature is continuously monitored to detect load and flow changes. This combination provides the most precise temperature control available.

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Two independent refrigerant circuits - the second one takes over automatically, when the first one malfunctions, main-taining partial cooling under all circumstances.

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Easy installation - the 30GX chillers are supplied with a full refrigerant charge, and conveniently located power supply and water inlet and outlet connections.

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Auto-diagnostics - quick display of the machine status.

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Multiple compressor concept for optimized part-load effi-ciency and minimized starting current.

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Series star/delta starter, limiting the start-up current on 30GX 082-182 units.

Easy installation

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The 30GX has a compact design that is up to 50% smaller than current chillers. The 30GX is supplied as a complete package for easy installation. There are no extra controls, timers, starters or other items to install.

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30GX units have a single power point and one main discon-nect/isolator switch for sizes 30GX 082 to 182, and one power point and one main disconnect/isolator switch per circuit for sizes 30GX 207 to 358.The hydraulic connections are simple and facilitated by the use of Victaulic connections for the evaporator.

Air-Cooled Screw Compressor Liquid Chillers,High Outdoor Temperature Version

GLOBAL CHILLER

2

Simple to service

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Mechanically-cleanable evaporator

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Twin-screw compressors which require minimum routine service or maintenance.

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Easily accessed suction and discharge pressure and tempe-rature information via a display module.

PRO-DIALOG Plus control

PRO-DIALOG Plus is an advanced numeric control system that combines intelligence with great operating simplicity.

PRO-DIALOG Plus ensures intelligent leaving water temperature control and optimises energy require-ments.

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The PID control algorithm with permanent compensation for the difference between the heat exchanger entering and leaving temperature, anticipates load variations, guarantees leaving water temperature stability and prevents unneces-sary compressor cycling.

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The long-stroke electronic expansion valves (EXV), together with refrigerant level control via heat exchange in the evaporator, allows a significant energy efficiency improvement at part load conditions, and faultless chiller operation in a wider temperature range.

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Adjustable ramp loading, according to the inertia of the application, avoids load increases that are too fast and too frequent, increasing unit life and limiting power consump-tion peaks.

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Several capacity loading possibilities ensure improved start-up at low outdoor air temperature, and permit use of one of the refrigerant circuits as a back-up circuit.

PRO-DIALOG Plus ensures preventive protection and enhances chiller reliability.

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Equalisation of compressor operating hours

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No capillary tubes or pressostats (except as safety device)

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PRO-DIALOG Plus monitors all chiller safety parameters. The fault history function and the fault codes facilitate immediate location of faults and in certain cases the condi-tions causing the alarm. Prognostic and preventive mainte-nance functions (incorrect water loop, oil filter dirty etc.) permit anticipation of possible problems.

PRO-DIALOG Plus offers extended communications capabilities

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Clear and easy-to-understand operator interface. The LEDs, numeric displays and touch keys are well-positioned on the schematic chiller diagram. The user immediately knows all operating parameters: pressures, temperatures, operating hours, etc.

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The extensive chiller remote control capabilities (wired connection) allow integration into building monitoring sys-tems (see Technical Description)

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RS485 series port for connection to the Carrier Comfort Network (CCN) or any other monitoring system (accessory communications interface with open protocol allows trans-fer of almost 40 parameters).

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Parallel piloting of two units as standard, or of several units with Flotronic System Manager (FSM) and Chiller System Manager (CSM III) options.

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The control permits:- Control in master/slave configuration of two units operat-

ing in parallel.- Programming of operating time schedules (up to 8 peri-

ods per week)- Programming of operating time schedules for the second

set point (up to 8 periods per week)- Definition of operating time period with demand limit.- Integration of the unit into a building monitoring system

(BMS): serial port RS 485.

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Control of the customer’s water pump (dual pump with automatic configurable change-over).

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Control at the second set point (example: room unoccu-pied).Set point reset as a function of the air temperature or the difference between entering and leaving water temperature.

Options and accessories

Option Accessory

Condenser anti-corrosion treatment for marine applications X*

Condenser anti-corrosion treatment for heavy-duty rural, urban and industrial applications X*

Protection grilles X X

High and low pressure manometers X

Compressor suction valve X

Evaporator with one pass less X

Evaporator maximum water-side operating pressure of 21 bar X

Compressor and evaporator sound enclosure X

Unit with low noise level (field-installed vibration absorbing kit) X*

Unit with very low noise level (option 15LN - combination of two previous options) X*

RS485 communications interface with open protocol X

Compressor soft start (30GX 207-358) - electronic starter X

Tropicalized control box X

Brine unit for leaving brine < +4°C and > -6°C X

Reversed evaporator water inlet/outlet X

Available fan pressure 150 Pa X

Kit with Victaulic collars, connection flanges and counter-flanges (evaporator inlet and outlet) X

Kit with Victaulic collars and 150 mm welded pipe joints (evaporator inlet and outlet) X

Evaporator water pump starter X

* Air entering high temperature limit modified – see electronic selection program

Carrier´s environmental leadership

PRO-DIALOG Plus operator interface

The 30GX is 20-50% smaller than the chillers it replacesCarrier POWER

3

twin-screw compressor

Low-noise FLYING BIRD axial fan with rotating shroud

Physical data

30GX NEE 082 092 102 112 122 132 152 162 182 207 227 247 267 298 328 358

Nominal cooling capacity*

kW 286 309 333 390 419 452 508 538 624 695 764 823 882 1006 1112 1207

Cooling capacity**

kW 240 257 276 329 354 381 435 461 569 593 651 707 808 857 961 1103

Operating weight

kg 3208 3239 3248 3521 3535 3549 3995 4011 5009 5809 5824 6467 6639 7738 8235 8406

Refrigerant charge***

HFC-134aCircuit A kg 57 60 56 59 64 61 81 81 96 139 139 174 189 183 176 189Circuit B kg 58 53 56 58 62 66 76 82 100 91 91 98 114 163 177 187

Compressors

Semi-hermetic, twin-screw POWER

3

Quantity - Circuit A 1 1 1 1 1 1 1 1 1 2 2 2 2 2 2 2Quantity - Circuit B 1 1 1 1 1 1 1 1 1 1 1 1 1 2 2 2Capacity control PRO-DIALOG Plus controlNo. of control steps 6 6 6 6 6 6 6 6 6 8 8 8 8 10 10 10Minimum step capacity % 19 21 19 21 19 21 19 21 21 16 14 14 14 9 10 10

Evaporator

Shell and tube with internally finned copper tubesNet water volume l 50 58 58 69 69 73 65 65 88 126 126 155 170 191 208 208Water connections Victaulic connectionsInlet/outlet in 4 4 4 5 5 5 5 5 5 6 6 6 6 8 8 8Drain and vent (NPT) in 3/8NPTMax. water side operating pressure kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

Condensers

Copper tubes, aluminium finsCondenser fans Axial FLYING BIRD fan with a rotating shroudQuantity 4 4 4 6 6 6 8 8 8 10 10 12 12 14 16 16Fan speed r/s 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8 15.8

Total air flow

l/s 21380 21380 21380 32070 32070 32070 42760 42760 42760 53450 53450 64140 64140 74830 85520 85520

* Based on an evaporator entering/leaving water temperature of 12°C and 7°C and an outdoor air temperature of 35°C.** Based on an evaporator entering/leaving water temperature of 12°C and 7°C and an outdoor air temperature of 46°C.

*** The weights shown are guidelines only. For the unit refrigerant charge please refer to the unit nameplate.

Electrical data

* Based on an evaporator entering/leaving water temperature of 12˚C and 7˚C and an outdoor air temperature of 35˚C. Unit power input (compressors, fans, control).** Maximum power input, compressor and fans, at unit operating limits and a nominal voltage of 400 V (data given on the unit name plate).

*** Maximum unit operating current at maximum unit power input.**** Maximum instantaneous starting current (maximum operating current of the smallest compressor(s) + fan current + locked rotor current or reduced starting current of the largest compressor).

Fan electrical data = power input 2.4 kW and current draw 5.5 A per fan† Current and power inputs not included in the values above

N/A Not applicable

30GX NEE 082 092 102 112 122 132 152 162 182 207 227 247 267 298 328 358

Power circuit

Nominal power supply V-ph-Hz 400-3-50Voltage range V 360-440

Control circuit supply

The control circuit is supplied via the factory-installed transformer

Nominal power input - standard unit*

kW 95 106 117 125 145 164 179 194 210 240 277 290 317 363 396 431

Nominal current drawn*

A 170 188 206 220 526 290 313 340 373 413 478 498 547 621 675 744

Maximum power input**

kW 132 145 159 177 194 211 232 248 306 318 351 372 459 459 496 612Circuit A kW - - - - - - - - - 194 227 248 306 248 248 306Circuit B kW - - - - - - - - - 124 124 124 153 211 248 306

Maximum current drawn (Un - 10%)

A 248 272 295 331 361 391 433 463 564 593 653 695 847 854 926 1129Circuit A*** A - - - - - - - - - 361 421 463 564 463 463 564Circuit B*** A - - - - - - - - - 232 232 232 283 391 463 564

Maximum current drawn (Un)

A 225 247 268 301 328 355 394 421 513 539 594 632 770 776 842 1026Circuit A*** A - - - - - - - - - 328 383 421 513 421 421 513Circuit B*** A - - - - - - - - - 211 211 211 257 355 421 513

Maximum starting current, standard unit (Un)****

A 338 360 404 437 470 497 592 620 679 1338 1631 1669 1800 1814 1880 2057Circuit A*** A - - - - - - - - - 1127 1420 1459 1544 1459 1459 1544Circuit B*** A - - - - - - - - - 1248 1248 1248 1287 1154 1459 1544

Max. starting current/max. current draw ratio, unit

1.51 1.46 1.51 1.45 1.43 1.40 1.50 1.47 1.32 2.48 2.75 2.64 2.34 2.34 2.23 2.00Max. starting current/max. current draw ratio, circuit A - - - - - - - - - 3.43 3.71 3.46 3.01 3.46 3.46 3.01Max. starting current/max. current draw ratio, circuit B - - - - - - - - - 5.93 5.93 5.93 5.01 3.25 3.46 3.01

Max. starting current - reduced current start (Un) ****

A std. std. std. std. std. std. std. std. std. 953 1015 1053 1195 1198 1264 1452Circuit A std. std. std. std. std. std. std. std. std. 742 804 843 939 843 843 939Circuit B std. std. std. std. std. std. std. std. std. 512 512 512 532 769 843 939

Max.starting current - red. current start/max. current draw ratio, unit

A std. std. std. std. std. std. std. std. std. 1.77 1.71 1.67 1.55 1.54 1.50 1.41Circuit A std. std. std. std. std. std. std. std. std. 2.26 2.10 2.00 1.83 2.00 2.00 1.83Circuit B std. std. std. std. std. std. std. std. std. 2.43 2.43 2.43 2.07 2.16 2.00 1.83

Three-phase short-circuit holding current

kA 25 25 25 25 25 25 25 25 25 N/A N/A N/A N/A N/A N/A N/ACircuit A - - - - - - - - - 25 25 25 25 25 25 25Circuit B - - - - - - - - - 25 25 25 25 25 25 25

Standby capacity, unit or circuit A†for evaporator water pump connections

kW 4 4 4 5.5 5.5 5.5 7.5 7.5 7.5 7.5 9 9 9 15 15 15and for heat reclaim condenser pump kW 3 3 4 4 4 5.5 5.5 5.5 N/A 5.5 7.5 7.5 N/A 9 9 N/A

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Electrical data notes 30GX NEE units:

•

30GX NEE 082-182 units have a single power connection point; 30GX NEE 207-358 NEE units have two connection points.

•

The control box includes the following standard features:- A main disconnect switch for two-compressor units and a main

disconnect switch per circuit for three- or four-compressor units, motor starting and protection devices for each compressor and the fan(s)

- Control devices

•

Electrical reserves:

Circuit A has disconnect switches and branch sections, designed to supply the evaporator pump power input within the limits specified in the electrical data table.

•

Field connections:

All connections to the system and the electrical installations must be in full accordance with all applicable local codes.The Carrier 30GX NEE units are designed and built to ensure conformance with these codes.

•

Installation and environment

The recommendations of standard IEC 60 204-1 (standards issued by the International Electrotechnical Commission) are accepted as compliance with the requirements of the installation directives.The recommendations of standard IEC 60 204-1 (machine safety - electrical machine components - part 1: general regulations) are specifically taken into account, when designing the electrical equipment.Annex B of IEC 60204-1 describes the electrical characteristics used for the operation of the machines.

1.

The unit environmental operating conditions

(1)

are specified below:- outdoor installation*- ambient temperature range: +5°C to +52°C- altitude:

<

2000 m- presence of hard solids: significant dust present**- presence of corrosive and polluting substances***: negligible- vibration and shock: negligible- minimum competence level of personnel: instructed personnel****

(1)

The required protection level for this class is IP53BW†. All 30GX NEE units are protected to IP54CW† (electrical compartment protected against intrusion of hard solids or liquid splashes) and fulfil this protection condition.

2.

Power supply frequency variation: ± 2 Hz.

3.

The neutral (N) conductor 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 factory-installed disconnect switch(es)/circuit breaker(s) is (are) of a type suitable for power interruption in accordance with IEC 60947-3.

6.

The units are designed for connection to TN networks (IEC 60364). For IT networks the earth connection must not be at the network earth. Provide a local earth, consult competent local organisations to complete the electrical installation.

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.

Notes:

* The environmental classification is described in standard IEC 60721.** The control boxes are equipped with filters and cooling fans.

During operation the maintenance programme must take into account the dust in the environment.

*** In case of condensation in the control box, ensure tropicalisation of the control boxes (option 22).

**** Trained personnel: Personnel trained by a specialist, to ensure that he/she avoids any possible danger and risk in using electricity (IEC 60364 BA4 – classification of competence of personnel)

† Corresponds to IEC 60529 (IP codes correspond to the protection degree of the unit enclosure).

‡ IEC 60947-3 (low-capacity control and regulation units – Part 3: for a unit, associated disconnect switches, circuit breakers, disconnect buttons and fuses).

Operating limits

Evaporator water flow rates

30GX NEE

Minimum flow rate, l/s Maximum flow rate, l/s

082

5.2 20.8

092-102

6.5 25.9

112-132

7.4 29.6

152-162

9.4 37.8

182

11.5 45.9

207-227

14.1 56.3

247

16.3 65.2

267

18.3 73.4

298

20.9 83.7

328-358

23.0 91.9

Note:The 30GX NEE units operate at a minimum ambient temperature of +5°C.

Dimensions/clearances

30GX NEE 082-182

30GX NEE

A B

082-092-102

2967 1900

112-122-132

3425 1700

152-162

4340 2400

182

5994 1850

Do not obstruct

2297

30GX - 08230GX - 09230GX - 10230GX - 11230GX - 12230GX - 132

30GX - 15230GX - 16230GX - 182

A

500500

1830 1

1 1

1

22

1830

2254

B

7

Do not obstruct

Legend:

All dimensions are given in mm.

Required clearances for maintenance

Recommended space for tube removal, space can be either on the right or the left hand side.

Water outlet

Water inlet

Air outlet, do not obstruct

Power supply

NOTE:

For a specific installation, consult the certified dimensional drawings, available on request.

1

2

Dimensions/clearances

30GX NEE 207-358

30GX NEE

A B

207-227

5994 2850

247-267

6909 2850

298

7824 2050

328-358

8739 1150

Do not obstruct

1

2

1

2

11

500500

1830

1830

B

2297

A

2254

Cooling capacities 30GX NEE

30GX

Condenser entering air temperature, °C

LW

T 35 40 46 50 52

CAP COMP UNIT COOL CAP COMP UNIT COOL CAP COMP UNIT COOL CAP COMP UNIT COOL CAP COMP UNIT COOL

˚C kW kW kW l/s kPa kW kW kW l/s kPa kW kW kW l/s kPa kW kW kW l/s kPa kW kW kW l/s kPa

082

4 260 81 91 11.3 37 241 88 97 10.5 32 218 96 105 9.47 27 202 101 111 8.78 23 194 104 114 8.43 21

092

281 91 101 12.2 33 260 98 108 11.3 28 233 107 116 10.1 23 215 113 123 9.36 20 206 116 126 8.96 18

102

305 102 112 13.2 38 281 110 119 12.2 33 253 119 129 11 27 233 126 136 10.1 23 183 110 120 7.96 15

112

353 105 119 15.4 37 329 112 127 14.3 32 298 123 137 13 27 277 130 144 12 23 266 134 148 11.6 22

122

381 123 138 16.6 42 354 133 147 15.4 37 321 144 159 14 31 299 153 167 13 27 287 158 172 12.5 25

132

412 142 156 17.9 43 383 152 167 16.6 37 347 166 180 15.1 31 322 176 190 14 27 310 181 195 13.5 25

152

459 151 170 19.9 34 429 161 181 18.6 30 393 175 195 17.1 25 367 185 205 16 22 355 191 210 15.4 21

162

486 166 185 21.1 37 455 177 196 19.8 33 417 191 211 18.1 28 391 202 221 17 25 377 208 227 16.4 23

182

574 181 201 24.9 39 553 200 219 24 36 525 225 244 22.8 33 506 243 262 22 31 363 188 207 15.8 16

207

628 204 228 27.3 38 586 219 243 25.5 33 535 239 263 23.2 28 500 253 277 21.7 25 482 260 284 20.9 23

227

694 239 263 30.1 44 648 256 280 28.2 39 591 278 302 25.7 33 552 294 318 24 29 436 254 278 18.9 19

247

743 247 276 32.3 37 696 264 293 30.3 33 638 286 315 27.7 28 598 302 331 26 25 578 311 340 25.1 23

267

809 274 302 35.2 40 780 300 329 33.9 37 743 336 365 32.3 34 565 299 328 24.6 20 487 278 307 21.1 15

298

912 311 345 39.6 35 851 333 366 37 30 776 361 395 33.7 26 724 381 415 31.5 23 698 392 426 30.3 21

328

1000 337 375 43.5 35 939 359 398 40.8 31 863 389 428 37.5 26 811 411 449 35.2 24 785 422 460 34.1 22

358

1107 372 411 48.1 43 1067 409 447 46.3 40 1015 457 495 44.1 36 598 285 323 26 13 586 296 334 25.5 13

082

5 269 83 92 11.7 39 249 89 99 10.8 34 225 97 107 9.79 28 209 103 112 9.07 25 201 106 115 8.71 23

092

291 93 102 12.6 35 268 100 109 11.7 30 241 109 118 10.5 25 223 115 125 9.67 21 213 118 128 9.26 20

102 314 104 114 13.7 41 290 112 121 12.6 35 261 121 131 11.3 29 241 128 138 10.5 25 189 112 121 8.23 16112 366 106 121 15.9 39 340 114 129 14.8 34 309 125 139 13.4 29 287 132 146 12.5 25 276 136 150 12 23122 394 126 140 17.1 45 366 135 149 15.9 39 332 147 161 14.4 33 309 156 170 13.4 29 297 160 174 12.9 27132 426 144 159 18.5 46 395 155 169 17.2 40 358 169 183 15.6 33 333 179 193 14.5 29 320 184 198 13.9 27152 475 154 173 20.6 36 445 164 184 19.3 32 407 178 198 17.7 27 381 189 208 16.6 24 368 194 213 16 22162 504 169 188 21.9 40 472 180 199 20.5 35 432 195 214 18.8 30 405 206 225 17.6 26 391 211 230 17 25182 591 185 204 25.7 41 569 204 223 24.7 38 540 229 248 23.5 35 452 215 234 19.6 25 379 191 210 16.5 18207 651 208 232 28.3 41 608 223 247 26.4 36 554 243 267 24.1 30 518 257 281 22.5 26 500 264 288 21.7 25227 718 244 268 31.2 47 670 261 285 29.1 42 611 283 307 26.6 35 571 299 323 24.8 31 452 258 282 19.6 20247 770 252 281 33.5 40 722 269 298 31.3 35 661 292 320 28.7 30 620 308 336 26.9 26 599 316 345 26 25267 834 278 307 36.2 42 804 306 334 34.9 40 765 342 371 33.2 36 517 271 300 22.5 17 507 282 311 22 17298 944 317 351 41 37 881 339 373 38.3 32 803 368 401 34.9 27 750 388 422 32.6 24 723 399 433 31.4 22328 1038 344 382 45.1 37 974 366 405 42.3 33 896 396 435 38.9 28 842 418 457 36.6 25 815 430 468 35.4 24358 1141 379 418 49.5 45 1098 416 454 47.7 42 1044 465 504 45.4 38 619 289 327 26.9 14 607 300 338 26.4 14

082 6 278 84 94 12.1 42 258 91 100 11.2 36 233 99 108 10.1 30 216 104 114 9.37 26 207 107 117 9 24092 300 95 104 13 37 277 102 111 12 32 249 110 120 10.8 26 230 117 126 9.98 23 220 120 130 9.56 21102 324 106 116 14.1 43 299 114 123 13 37 269 123 133 11.7 30 248 131 140 10.8 26 196 113 123 8.5 17112 378 108 123 16.4 42 352 116 131 15.3 37 319 127 141 13.9 31 297 134 148 12.9 27 286 138 152 12.4 25122 407 128 142 17.7 48 378 137 152 16.4 42 343 149 164 14.9 35 319 158 172 13.9 30 307 163 177 13.3 28132 439 147 162 19.1 48 408 158 172 17.7 42 370 172 186 16.1 35 343 182 196 14.9 30 330 187 201 14.3 28152 492 157 176 21.4 38 460 167 187 20 34 421 182 201 18.3 29 394 192 211 17.1 25 381 197 216 16.5 24162 521 172 191 22.6 43 488 183 203 21.2 38 447 198 217 19.4 32 419 209 228 18.2 28 404 215 234 17.6 26182 608 188 207 26.4 43 585 207 226 25.4 40 555 233 252 24.1 36 467 219 238 20.3 26 395 194 213 17.2 19207 673 212 236 29.2 43 629 227 251 27.3 38 574 247 271 24.9 32 536 261 285 23.3 28 517 269 293 22.5 26227 741 249 273 32.2 50 692 266 290 30.1 44 632 288 312 27.4 37 590 305 329 25.6 33 468 261 285 20.3 21247 797 257 286 34.6 42 747 274 303 32.4 37 684 297 325 29.7 32 642 313 342 27.9 28 620 321 350 26.9 26267 859 283 312 37.3 45 827 311 340 35.9 42 787 348 377 34.2 38 537 275 304 23.3 18 527 286 315 22.9 18298 975 324 357 42.4 39 910 345 379 39.5 35 830 374 408 36.1 29 775 395 429 33.7 26 648 356 389 28.1 18328 1075 350 389 46.7 40 1010 373 412 43.9 36 929 404 442 40.3 30 874 426 464 37.9 27 533 264 302 23.2 11358 1174 386 424 51 48 1130 423 462 49.1 45 1074 473 512 46.6 40 641 292 331 27.8 15 629 304 342 27.3 15

082 7 287 86 95 12.4 44 266 92 102 11.5 39 240 100 110 10.4 32 223 106 116 9.67 28 214 109 119 9.28 26092 309 96 106 13.4 40 286 103 113 12.4 34 257 112 122 11.2 28 237 119 128 10.3 24 227 122 132 9.86 22102 334 108 118 14.5 45 308 116 125 13.4 39 277 126 135 12 32 211 111 121 9.16 19 202 114 124 8.77 18112 391 110 125 17 45 363 118 133 15.8 39 330 129 143 14.3 32 307 136 151 13.3 28 295 140 154 12.8 26122 420 130 145 18.2 51 390 140 154 17 44 354 152 166 15.4 37 329 161 175 14.3 32 267 140 154 11.6 22132 453 150 164 19.7 51 421 161 175 18.3 45 381 174 189 16.6 37 354 184 199 15.4 32 241 139 153 10.5 16152 509 160 179 22.1 41 476 170 190 20.7 36 436 185 204 18.9 31 408 195 214 17.7 27 339 175 194 14.7 19162 538 175 195 23.4 45 504 187 206 21.9 40 462 202 221 20.1 34 433 213 232 18.8 30 363 193 212 15.8 22182 625 191 210 27.1 46 601 211 230 26.1 42 570 237 256 24.8 38 417 189 209 18.1 21 411 197 217 17.9 21207 695 216 240 30.2 46 650 231 255 28.2 40 593 251 275 25.8 34 554 265 289 24.1 30 535 273 297 23.2 28227 765 253 277 33.2 53 715 271 295 31 47 652 293 317 28.3 39 501 257 281 21.8 24 483 265 289 21 23247 824 262 291 35.8 45 772 279 308 33.5 40 707 302 331 30.7 34 663 318 347 28.8 30 524 276 305 22.8 19267 883 288 317 38.4 47 850 316 345 36.9 44 808 354 382 35.1 40 557 279 308 24.2 20 547 291 319 23.7 19298 1007 330 363 43.8 42 940 352 385 40.8 37 858 381 414 37.3 31 801 402 435 34.8 27 480 237 270 20.8 10328 1112 357 396 48.3 43 1045 381 419 45.4 38 962 411 450 41.8 32 905 433 472 39.3 29 554 267 306 24.1 12358 1207 393 431 52 50 1162 431 469 50 47 1103 482 520 47.9 43 662 296 335 28.8 16 650 308 346 28.2 16

Legend:LWT Leaving water temperatureCAP kW Cooling capacityCOMP kW Compressor power inputUNIT kW Unit power input (compressors, fans, control)COOL l/s Evaporator water flow rateCOOL kPa Evaporator pressure drop

Only interpolation is permitted. For all other cases use the selection programme.The minimum outside temperature is +5°C.

Application data:Standard NEE unitsRefrigerant: R-134aEvaporator water temperature rise: 5.5 KEvaporator fluid: chilled water

Attention:The operating limits at full load are given in the Carrier Electronic Catalogue (ECAT), and certain cooling capacities given above are at part load.The performances and operating limits above are calculated for non-treated, regularly maintained, clean coils.

9

Cooling capacities 30GX NEE30GX Condenser entering air temperature, °C

LW

T 35 40 46 50 52

CAP COMP UNIT COOL CAP COMP UNIT COOL CAP COMP UNIT COOL CAP COMP UNIT COOL CAP COMP UNIT COOL

˚C kW kW kW l/s kPa kW kW kW l/s kPa kW kW kW l/s kPa kW kW kW l/s kPa kW kW kW l/s kPa

082 8 295 87 97 12.8 47 274 94 103 11.9 41 247 102 111 10.8 34 229 108 117 9.97 29 220 111 120 9.57 27092 319 98 108 13.8 42 294 105 115 12.8 36 265 114 124 11.5 29 244 121 130 10.6 25 234 124 133 10.2 23102 343 110 120 14.9 48 317 118 127 13.8 41 285 128 137 12.4 34 217 112 122 9.44 20 208 116 125 9.04 19112 403 112 127 17.5 47 375 120 135 16.3 41 340 131 145 14.8 34 317 138 153 13.8 30 305 142 157 13.2 28122 433 133 147 18.8 54 402 142 156 17.5 47 365 154 169 15.9 39 339 163 178 14.7 34 276 141 156 12 23132 467 153 167 20.3 54 433 163 178 18.8 47 393 177 192 17.1 39 365 187 202 15.8 34 249 140 154 10.8 17152 525 163 182 22.8 43 492 173 193 21.4 38 450 188 207 19.6 32 422 198 217 18.3 29 350 177 197 15.2 20162 556 179 198 24.1 48 520 190 209 22.6 43 477 205 224 20.7 36 447 216 235 19.4 32 318 170 189 13.8 17182 642 194 214 27.9 48 617 214 234 26.8 45 585 241 260 25.4 40 434 192 212 18.8 23 427 201 220 18.6 22207 718 220 244 31.2 49 671 235 259 29.1 43 612 255 279 26.6 36 573 270 294 24.9 32 440 229 253 19.1 19227 789 258 282 34.3 56 737 276 300 32 50 672 298 322 29.2 42 518 260 284 22.5 26 499 268 292 21.7 24247 850 267 295 36.9 48 797 284 313 34.6 42 730 307 336 31.7 36 685 323 352 29.8 32 541 280 308 23.5 20267 908 293 321 39.4 50 874 321 350 37.9 46 830 359 388 36.1 42 577 283 312 25.1 21 567 295 324 24.6 20298 1039 336 370 45.1 44 970 358 392 42.1 39 885 387 421 38.4 33 827 408 442 35.9 29 497 239 273 21.6 11328 1150 364 403 49.9 45 1080 388 426 46.9 40 995 418 457 43.2 35 806 387 425 35 23 575 270 309 25 12358 1241 399 438 54 53 1193 438 476 52 49 708 278 317 30.7 18 683 300 338 29.7 17 671 312 350 29.1 17

082 10 313 90 100 13.6 53 290 97 106 12.6 46 262 105 114 11.4 38 243 111 120 10.6 33 188 90 100 8.17 20092 337 102 111 14.7 47 312 109 118 13.5 40 280 118 127 12.2 33 259 124 134 11.2 28 157 80 89 6.81 11102 363 114 123 15.8 53 335 122 131 14.5 46 301 132 141 13.1 37 230 115 125 10 23 175 95 104 7.62 14112 428 116 131 18.6 53 398 124 139 17.3 46 362 135 149 15.7 39 337 142 157 14.6 34 324 146 161 14.1 31122 459 137 152 19.9 60 426 147 161 18.5 52 387 159 174 16.8 44 305 140 155 13.2 28 293 145 159 12.7 26132 494 158 173 21.5 60 459 169 183 19.9 53 415 183 198 18 44 330 166 180 14.4 28 264 143 157 11.5 19152 558 168 188 24.3 49 523 179 199 22.7 43 479 194 213 20.8 36 449 204 223 19.5 32 374 182 201 16.2 23162 590 185 204 25.6 54 553 197 216 24 48 507 212 231 22 40 475 223 242 20.6 36 339 174 193 14.7 19182 676 201 220 29.4 53 649 222 241 28.2 49 615 249 268 26.7 44 466 199 218 20.2 26 460 207 226 20 26207 763 228 252 33.1 55 713 243 267 31 48 651 264 288 28.3 41 609 278 302 26.5 36 469 235 259 20.4 22227 836 267 291 36.3 63 781 285 309 33.9 55 713 308 332 31 47 551 267 291 23.9 29 531 275 299 23.1 27247 904 276 305 39.3 53 847 294 323 36.8 47 777 317 346 33.7 40 728 334 363 31.6 36 517 260 289 22.4 19267 957 302 331 41.6 55 920 332 361 40 51 707 303 332 30.7 31 618 292 320 26.8 24 607 303 332 26.4 23298 1103 349 382 47.9 49 1029 371 405 44.7 43 939 401 434 40.8 37 549 237 271 23.9 13 531 244 278 23 13328 1224 378 417 53 51 1151 402 440 50 45 1060 433 472 46.1 39 635 269 307 27.6 15 616 277 315 26.8 14358 1307 413 451 57 59 1256 453 491 55 54 751 285 324 32.6 21 726 308 346 31.5 19 713 319 358 31 19

082 12 331 93 103 14.4 58 306 100 109 13.3 50 277 108 117 12 42 257 114 123 11.2 36 199 92 101 8.66 22092 356 105 115 15.5 51 329 112 122 14.3 44 296 121 131 12.8 36 273 128 137 11.9 31 167 81 91 7.23 12102 382 118 127 16.6 59 353 126 135 15.3 50 317 136 145 13.8 41 244 118 128 10.6 25 186 96 106 8.07 15112 453 120 135 19.7 59 421 128 143 18.3 51 383 139 153 16.6 43 357 147 161 15.5 38 343 151 165 14.9 35122 484 142 156 21 67 450 152 166 19.6 58 408 164 179 17.7 48 323 144 158 14 31 311 148 162 13.5 29132 521 164 178 22.6 67 484 175 189 21 58 438 189 203 19 48 292 141 155 12.7 22 280 145 160 12.2 21152 592 174 194 25.7 54 554 185 205 24.1 48 507 200 219 22 41 411 182 201 17.9 27 330 159 178 14.4 18162 625 192 211 27.1 60 585 203 223 25.4 53 537 219 238 23.3 45 373 173 192 16.2 23 360 178 197 15.7 21182 710 207 226 30.8 58 681 229 248 29.6 54 645 257 276 28 48 498 205 224 21.6 30207 808 236 260 35.1 61 755 251 275 32.8 54 690 272 296 30 45 517 233 257 22.4 26 435 213 237 18.9 19227 884 277 301 38.4 70 825 295 319 35.9 61 625 259 283 27.1 36 584 274 298 25.4 32 499 254 278 21.7 24247 957 286 315 41.6 60 897 304 333 39 53 823 327 356 35.7 45 634 286 315 27.5 27 549 266 294 23.8 21267 1006 312 341 43.7 61 967 342 371 42 56 678 277 306 29.5 29 658 300 328 28.6 27 468 195 224 20.3 14298 1167 361 395 51 55 1089 384 418 47.3 48 994 414 448 43.2 41 584 243 276 25.4 15 564 250 283 24.5 14328 1299 392 430 56 57 1222 416 455 53 51 1126 448 486 48.9 44 678 275 314 29.4 17 657 283 322 28.5 16358 1374 426 464 60 64 1319 468 506 57 60 795 293 331 34.5 23 769 315 354 33.4 22 656 238 277 28.5 16

082 15 349 96 106 15.2 65 323 102 112 14 56 290 111 120 12.6 46 215 90 100 9.36 26 206 93 103 8.97 24092 372 108 118 16.2 56 343 115 125 14.9 48 307 124 133 13.3 39 180 79 88 7.81 14 171 82 91 7.45 13102 402 122 132 17.5 65 370 130 139 16.1 55 274 113 123 11.9 31 202 94 104 8.76 18 192 97 107 8.36 16112 478 124 138 20.8 65 443 132 146 19.3 57 401 142 157 17.4 47 372 150 164 16.2 41 232 106 120 10.1 17122 513 147 162 22.3 74 476 157 171 20.7 64 429 169 183 18.7 53 337 146 161 14.6 34 261 127 141 11.4 21132 550 170 184 23.9 74 509 180 195 22.1 64 459 194 208 19.9 53 302 142 157 13.1 24 290 147 161 12.6 22152 632 181 201 27.5 62 589 192 211 25.6 54 537 206 226 23.3 45 429 185 204 18.6 30 345 161 180 15 20162 666 199 219 28.9 68 621 211 230 27 59 566 226 245 24.6 50 389 175 195 16.9 25 375 180 200 16.3 23182 744 214 233 32.3 64 712 235 255 30.9 58 605 228 247 26.3 43 521 209 228 22.6 32207 848 243 267 36.8 67 790 258 282 34.3 58 719 278 302 31.2 49 532 236 260 23.1 28 448 214 238 19.4 20227 930 286 310 40.4 77 866 304 328 37.6 67 648 263 287 28.2 39 604 278 302 26.3 34 517 257 281 22.4 25247 1003 294 323 43.6 65 938 312 341 40.7 57 858 335 364 37.3 48 590 261 290 25.6 24 569 269 297 24.7 22267 1046 319 348 45.4 65 1002 350 379 43.5 60 705 282 311 30.6 31 683 305 333 29.7 29298 1222 372 405 53 60 1137 394 428 49.4 52 1033 423 457 44.9 44 599 245 278 26 16 578 252 285 25.1 15328 1355 402 441 59 62 1270 426 464 55 55 1000 393 432 43.5 35 692 278 316 30.1 18 671 285 324 29.1 17358 1426 436 475 62 69 1366 478 517 59 64 811 295 333 35.2 24 784 318 356 34.1 22 669 240 279 29.1 17

Legend:LWT Leaving water temperatureCAP kW Cooling capacityCOMP kW Compressor power inputUNIT kW Unit power input (compressors, fans, control)COOL l/s Evaporator water flow rateCOOL kPa Evaporator pressure drop

Only interpolation is permitted. For all other cases use the selection programme.The minimum outside temperature is +5°C.

Application data:Standard NEE unitsRefrigerant: R-134aEvaporator water temperature rise: 5.5 KEvaporator fluid: chilled water

Attention:The operating limits at full load are given in the Carrier Electronic Catalogue (ECAT), and cer-tain cooling capacities given above are at part load.The performances and operating limits above are calculated for non-treated, regularly maintained, clean coils.

Guide specificationsAir-cooled liquid chillerSize range: 286 to 1207 kW nominal capacityCarrier model number: 30GX NEE

Part 1 - General 1.01 System description� Microprocessor controlled, air-cooled liquid chiller utiliz-

ing HFC-134a, dual refrigeration circuits, screw compres-sors, and electronic expansion devices.

1.02 Quality assurance� The published performances are in accordance with

Eurovent tolerances. � Unit construction shall comply with European directives:

- Pressurised equipment directive (PED) 97/23/EC- Machinery directive 98/37/EC, modified- Low voltage directive 73/23/EEC, modified- Electromagnetic compatibility directive 89/336/EEC,

modified, and the applicable recommendations of Euro-pean standards:

- Machine safety: electrical equipment in machines, gene-ral regulations, EN 60204-1

- Electromagnetic emission EN 50081-2- Electromagnetic immunity EN 50082-2.

� Unit shall be designed, manufactured and tested in a facil-ity with a quality assurance system certified ISO 9001.

� Unit shall be manufactured in a facility with an environ-ment management system certified ISO 14001.

� Unit shall be tested at the factory.

1.03 Delivery, storage and handling � Unit controls shall be capable of withstanding 66°C storage

temperatures in the control compartment.

Part 2 - Products2.01 Equipment� General

Factory assembled, single-piece, air-cooled liquid chiller. Contained within the unit cabinet shall be all factory wir-ing, piping, controls, refrigerant charge (HFC-134a), required prior to field start-up.

� Unit cabinet- Frame shall be made of U steel beam and protected by

three layers of paint (thickness = 150 microns).- The control box plates shall be steel with a oven-baked

polyester-paint finish, and be capable of withstanding a 500-hour salt spray test in accordance with the ASTM B-117 standard (U.S.A.).

� Fans- Condenser fans shall be direct-driven, 11-blade, shrouded-

axial type, shall be statically and dynamically balanced, and made of recyclable material with inherent corrosion resistance. Air shall be discharged vertically upward.

- Fans shall be protected by coated steel wire safety guards.

� Compressors- Unit shall have semi-hermetic twin-screw, gear-driven

compressors with internal muffler and check valve.- Each compressor shall be equipped with a discharge shut-

off valve.- Capacity control shall be provided by pilot-operated sole-

noid valve, capable of reducing unit capacity to 20% of full load. Compressor shall start in unloaded condition.

- Motor cooling shall be provided by direct liquid injec-tion and protected by internal overload thermistor.

- Lube oil system shall include pre-filter and internal filter capable of filtration to 3 microns.

� EvaporatorUnit shall be equipped with a single evaporator- Evaporator shall be manufactured, tested and stamped in

accordance with the European directive for pressurised equipment 97/23/EC. The maximum refrigerant-side operating pressure will be 2500 kPa and the maximum water-side pressure will be 1000 kPa.

- Shall be mechanically cleanable shell-and-tube type with removable heads.

- Tubes shall be internally-enhanced, seamless-copper type, and shall be rolled into tube sheets.

- Shall be equipped with Victaulic water connections (water connection kit on request).

- Shell shall be insulated with 19 mm closed-cell, polyvi-nyl-chloride foam with a maximum K factor of 0.28 and mechanical aluminium protection.

- Shall incorporate two independent refrigerant circuits.- Shall have an evaporator drain and vent.- Shall incorporate a refrigerant level control system.

11

� Condenser - Coil shall be air-cooled with integral subcooler, and shall

be constructed of aluminum fins mechanically bonded to internally finned copper tubes. The tubes are then cleaned, dehydrated, and sealed.

- Condenser coils shall be leak tested and shall be pressure tested at 3400 kPa.

- Condenser-fan motors shall be 3-phase type with perma-nently-lubricated bearings and Class F (minimum) insula-tion.

� Refrigeration circuits- Refrigerant circuit components shall include oil separa-

tors, high and low side pressure relief devices (according to applicable standards), discharge and liquid line shutoff valves, filter driers, moisture indicating sight glasses, electronic expansion devices, refrigerant economizers (182, 267, 358 units), and complete operating charge of both refrigerant HFC-134a and compressor oil.

- To facilitate service and maintenance and avoid refriger-ant charge transfers, it must be possible to isolate the following components independently:- filter driers- oil filters- expansion devices- motor cooling systems

� Controls, safeties, and diagnostics 1.Controls a. Unit controls shall include as a minimum: the micro-

processor, the LOCAL/OFF/REMOTE/CCN selector and a 6-digit diagnostic display (scroll-down text) with keypad.

b.Shall be capable of performing the following functions:- Automatic change-over between the main compressor

and the non-active compressor(s).- Capacity control based on leaving chilled fluid tempera-

ture with return fluid temperature sensing. - Limiting the chilled fluid temperature pull-down rate at

start-up to an adjustable range of 0.1°C to 1.1°C per minute to prevent excessive demand spikes at start-up.

- Enable adjustment of leaving chilled water temperature according to the return water temperature or the out-door temperature or (sensor supplied as standard) by means of a 0-10 V signal.

- Provide a dual set point for the leaving chilled water temperature activated by a remote contact closure sig-nal.

- Enable a 2-level demand limit control (between 0 and 100%), activated by a remote contact closure or a 0 to 10 V signal.

- Control evaporator water pump and, if installed, safety pump operation.

- Enable automatic changeover in the main phase or shut-down of two chillers in a single system.

- With two time scheduling programs enable unit start-up control and set-point change.

2.Diagnostics a. Display module shall be capable of displaying set points,

system status (including temperatures, pressures, current for each compressor, run time and percent loading), and any alarm or alert conditions.

b.The control shall allow a quick test of all machine ele-ments to verify the correct operation of every switch, cir-cuit breaker, contactor etc. before the chiller is started.

c. The control shall be capable of balancing the compressor operating times and the number of compressor start-ups.

d.EXV control, based on throttling (Carrier patent) opti-mises evaporator charging, ensuring condenser superheat and subcooling.

3.Safeties a. Unit shall be equipped with all necessary components,

and in conjunction with the control system shall provide the unit with protection against the following:- Loss of refrigerant charge.- Reverse rotation.- Low chilled water temperature.- Low oil pressure (per compressor).- Current imbalance.- Thermal overload.- High pressure. - Electrical overload.- Loss of phase.

b.Fan motors shall be individually protected by a circuit breaker

� Control shall provide general alarm remote indication for each refrigeration circuit.

� Control system shall have a RS485 serial output port (option and accessory).

� Operating characteristics- Unit shall be capable of starting and running at full or

part load at outdoor ambient temperatures from 5°C to 52°C.

- Unit shall be capable of starting up with 25°C entering fluid temperature to the evaporator.

� Electrical characteristics- Unit electrical power supply shall enter the unit at one

(30GX 082-182) or two locations.- Unit shall operate on 3-phase power supply without

neutral.- Unit with two compressors (30GX 082-182) shall have a

factory-installed, star-delta starter to limit electrical inrush current.

- Control voltage shall be supplied by a factory-installed transformer.

- Unit shall be supplied with factory-installed electrical disconnect switch/circuit breaker.

� FinishingElectrical cabinet colour: RAL 7035Compressor/heat exchanger colour: RAL 7037

Manufactured by: Carrier SA, Montluel, France.Order No. 13026-20, 06.2003. Supersedes order No. 13026-20, 01.2003. Printed on Totally Chlorine Free PaperManufacturer reserves the right to change any product specifications without notice. Printed in the Netherlands.