Air-Cooled Liquid ChillersHigh Outdoor Temperature Version

30XA 252-1702Nominal cooling capacity 270-1700 kW

The Aquaforce liquid chillers are the premium solution forindustrial and commercial applications where installers,consultants and building owners require optimalperformances and maximum quality.

The Aquaforce liquid chillers are designed to meet currentand future requirements in terms of energy efficiency,operating sound levels and reliability. They use the besttechnologies available today:- Twin-rotor screw compressors with a variable capacity

valve.- R134a refrigerant with zero ozone depletion potential.- Low-noise generation IV Flying Bird fans made of

composite material.- Aluminium micro-channel heat exchangers (MCHX) or

copper/aluminium coils (option).- Touch-screen Pro-Dialog control system.

The high outdoor temperature version has been speciallydesigned to assure reliable and durable operation in areaswith extreme climatic conditions: high outdoor temperature,sand storms etc.

Features and advantages

Very economical operation■ Extremely high full load and part load energy efficiency:

- Average Eurovent energy efficiency class “A”, averageCOP of 3.20 kW/kW at nominal conditions

- Average integrated part load value (IPLV) of 4.50 kW/kW(high-efficiency option)

- New twin-rotor screw compressor equipped with a high-efficiency motor and a variable capacity valve that permitsexact matching of the cooling capacity to the load.

- All aluminium condenser with micro-channels (standardversion).

- Flooded multi-pipe evaporator to increase the heatexchange efficiency.

- Electronic expansion device permitting operation at a lowercondensing pressure and improved utilisation of theevaporator heat exchange surface (superheat control).

- Economizer system with electronic expansion device forincreased cooling capacity.

Low operating sound levels■ Compressors

- Discharge dampers integrated in the oil separator (Carrierpatent).

- Silencer on the evaporator return line.- Suction piping with flexible connections to prevent noise

and vibration transmission.- Acoustic compressor and oil separator enclosure reducing

radiated noise.■ Condenser section

- Condenser coils in V-shape with an open angle, allowingquieter air flow across the coil

- Low-noise 4th generation Flying Bird fans, made of acomposite material (Carrier patent) are now even quieterand do not generate intrusive low-frequency noise

- Rigid fan mounting preventing start-up noise (Carrierpatent)

Easy and fast installation■ Integrated hydronic module (option)

- Centrifugal low or high-pressure water pump (as required),based on the pressure loss of the hydronic installation

- Single or dual pump (as required) with operating timebalancing and automatic changeover to the back-up pump ifa fault develops

- Water filter protecting the water pump against circulatingdebris

- High-capacity membrane expansion tank ensurespressurisation of the water circuit

- Thermal insulation and aluminium protection- Pressure gauge to check filter pollution and measure the

system water flow rate- Water flow control valve

■ Simplified electrical connections- Main disconnect switch with high trip capacity- Transformer to supply the integrated control circuit

(400/24 V)■ Fast commissioning

- Systematic factory operation test before shipment- Quick-test function for step-by-step verification of the

instruments, expansion devices, fans and compressors

Environmental care■ R134a refrigerant

- Refrigerant of the HFC group with zero ozone depletionpotential

- 30% reduction in the refrigerant charge through the use ofmicro-channel heat exchangers

■ Leak-tight refrigerant circuit- Reduction of leaks as no capillary tubes and flare

connections are used- Verification of pressure transducers and temperature

sensors without transferring refrigerant charge- Discharge shut-off valve and liquid line service valve for

simplified maintenance.

Absolute reliability■ Screw compressors

- Industrial-type screw compressors with oversized bearingsand motor cooled by suction gas.

- All compressor components are easily accessible on siteminimising down-time.

- Electronic motor protection against overloads and powersupply faults (loss of phase, phase reversal).

■ Air condenser- The all aluminium micro-channel heat exchanger (MCHX)

is not very sensitive to fouling by sand and offers acorrosion resistance that is 3.5 times higher than that oftraditional coils or coils with copper tubes and aluminiumfins.

■ Evaporator- Thermal insulation with aluminium sheet finish for perfect

resistance against outside aggression (mechanical and UVprotection).

■ Auto-adaptive control- Control algorithm prevents excessive compressor cycling

(Carrier patent)- Automatic compressor unloading based on the condensing

pressure. If the outside temperature is too high, thecondenser coil is fouled or if there is a fan fault, theAquaforce continues to operate at a reduced capacity.

■ Control box with reinforced air tightness- Reinforced air tightness to protect against sand penetration

(protection level IP54)- Forced ventilation to prevent overheating of the electrical

components.■ Exceptional endurance tests

- Partnerships with specialised laboratories and use of limitsimulation tools (finite element calculation) for the designof critical components.

- Transport simulation test in the laboratory on a vibratingtable. The test is based on a military standard andequivalent to 4000 km by truck.

- Salt mist corrosion resistance test in the laboratory forincreased corrosion resistance.

Pro-Dialog controlPro-Dialog combines intelligence with operating simplicity.The control constantly monitors all machine parameters andprecisely manages the operation of compressors, electronicexpansion devices, fans and of the evaporator water pump foroptimum energy efficiency.

■ Energy management- Internal time schedule clock: controls chiller on/off times

and operation at a second set-point- Set-point reset based on the outside air temperature or the

return water temperature- Master/slave control of two chillers connected in parallel

with operating time equalisation and automatic change-overin case of a unit fault.

■ Ease-of-use- User interface with large touch screen (120 x 99 mm) for

intuitive access to the operating parameters. Theinformation is in clear text and can be displayed in locallanguage (please contact your distributor).

Remote management (standard)Aquaforce is equipped with an RS485 serial port that offersmultiple remote control, monitoring and diagnosticpossibilities. Carrier offers a vast choice of control products,specially designed to control, manage and supervise theoperation of an air conditioning system. Please consult yourCarrier representative for more information.

Aquaforce also communicates with other buildingmanagement systems via optional communication gateways.A connection terminal allows remote control of theAquaforce by wired cable:- Start/stop: opening of this contact will shut down the unit- Dual set-point: closing of this contact activates a second

set-point (example: unoccupied mode)- Demand limit: closing of this contact limits the maximum

chiller capacity to a predefined value- Heat reclaim (option): closing of this contact allows heat

reclaim mode operation- Water pump 1 and 2 control*: these outputs control the

contactors of one or two evaporator water pumps- Water pump on reversal*: these contacts are used to detect

a water pump operation fault and automatically change overto the other pump

- Operation indication: this volt-free contact indicates thatthe chiller is operating (cooling load) or that it is ready tooperate (no cooling load)

- Alert indication: this volt-free contact indicates the need tocarry out a maintenance operation or the presence of aminor fault

- Alarm indication: this volt-free contact indicates thepresence of a major fault that has led to the shut-down ofone or several refrigerant circuits

* not available for units with the hydronic module option

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Remote management (EMM option)The Energy Management Module offers extended remotecontrol possibilities:- Room temperature: permits set-point reset based on the

building indoor air temperature (with Carrier thermostat)- Set point reset: ensures reset of the cooling set-point based

on a 4-20 mA or 0-5 V signal- Demand limit: permits limitation of the maximum chiller

power or current based on a 0-10 V signal- Demand limit 1 and 2: closing of these contacts limits the

maximum chiller power or current to two predefined values- User safety: this contact can be used for any customer

safety loop; opening of the contact generates a specificalarm

- Ice storage end: when ice storage has finished, this inputpermits return to the second set-point (unoccupied mode)

- Compressor operation: indicates the operation of thecompressors in refrigerant circuits A, B and C

- Time schedule override: closing of this contact cancels thetime schedule effects

- Out of service: this signal indicates that the chiller iscompletely out of service

- Chiller capacity: this analogue output (0-10 V) gives animmediate indication of the chiller capacity

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New generation 06T screw compressor

The new generation of the Carrier 06T screw compressorsbenefits from Carrier’s long experience in the development oftwin-rotor screw compressors. The compressor is equippedwith bearings with oversized rollers, oil pressure lubricatedfor reliable and durable operation, even at maximum load.A variable control valve controlled by the oil pressurepermits infinitely variable cooling capacity. This systemallows optimal adjustment of the compressor coolingcapacity and ensures exceptionally high stability of thechilled water leaving temperature.

Among the other advantages: if a fault occurs e.g. if thecondenser is fouled or at very high outside temperature, thecompressor does not switch off, but continues operation witha reduced capacity (unloaded mode).

The compressor is equipped with a separate oil separator thatminimises the amount of oil in circulation in the refrigerantcircuit and with its integrated silencer considerably reducesdischarge gas pulsations for much quieter operation.

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Already utilised in the automobile and aeronautical industriesfor many years, the MCHX used in the Aquaforce is entirelymade of aluminium. This one-piece concept significantlyincreases its corrosion resistance by eliminating the galvaniccurrents that are created when two different metals (copperand aluminium) come into contact in a saline or corrosiveatmosphere.

From an energy efficiency point-of-view the MCHX heatexchanger is approximately 10% more efficient than atraditional coil and allows a 30% reduction in the amount ofrefrigerant used in the chiller. The low thickness of theMCHX reduces air pressure losses by 50% and makes it lesssusceptible to fouling by sand than a traditional coil.Cleaning of the MCHX heat exchanger is very fast using ahigh-pressure washer.

All aluminium micro-channel heat exchanger (MCHX)

Pro-Dialog operator interface with touch-screen

The Aquaforce operator interface is very user-friendly. It is alarge-format touch-screen, and the information is easilyaccessible: clear text in the selected language allows

consultation of all operating parameters. Up to eight screenscan be personalised.

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Options No. Description Advantages Use

Corrosion protection, 2B Factory application of Blygold Polual treatment Improved corrosion resistance, recommended 30XA 252-1702traditional coils on the copper/aluminium coils for industrial, rural and severe marine environments

Corrosion protection, 3A Fins made of pre-treated aluminium Improved corrosion resistance, recommended for 30XA 252-1702traditional coils (polyurethane and epoxy) moderate marine and urban environments

Grilles 23 Metallic grilles on all four unit faces Improved aesthetics 30XA 252-1702

Evaporator frost protection 41A Resistance heater on the evaporator Evaporator frost protection down to -20°C 30XA 252-1702outside temperature

Evaporator and hydronic 41B Resistance heater on the evaporator and Evaporator and hydronic module frost 30XA 252-502module frost protection the hydronic module protection down to -20°C outside temperature

Suction valve 92 Shut-off valves on the compressor suction piping Simplified maintenance 30XA 252-702

Three-pass evaporator 100A Evaporator with three passes water-side Increased water inlet and outlet pressure losses 30XA 252-602on opposite sides

One-pass evaporator 100C Evaporator with one pass water-side Reduced water inlet and outlet pressure 30XA 252-1002losses on opposite sides

Reversed water connections 107 Evaporator with reversed water inlet/outlet Simplification of the water piping 30XA 252-1702

High-pressure single-pump 116B See hydronic module chapter Easy and fast installation 30XA 252-502hydronic module

High-pressure dual-pump 116C See hydronic module chapter Easy and fast installation, operating safety 30XA 252-502hydronic module

Low-pressure single-pump 116F See hydronic module chapter Easy and fast installation 30XA 252-502hydronic module

Low-pressure dual-pump 116G See hydronic module chapter Easy and fast installation, operating safety 30XA 252-502hydronic module

JBus gateway 148B Two-directional communications board, Easy connection by communication bus 30XA 252-1702complies with JBus protocol to a building management system

BacNet gateway 148C Two-directional communications board, Easy connection by communication bus 30XA 252-1702complies with BacNet protocol to a building management system

LON gateway 148D Two-directional communications board, Easy connection by communication bus 30XA 252-1702complies with LON protocol to a building management system

Energy Management 156 See chapter “Energy Management Module” Easy connection by wired connection 30XA 252-1702Module EMM to a building management system

Unit without enclosure 253 Compressors not equipped with acoustic enclosure More economical 30XA 252-1702

Traditional coils (Cu/Al) 255 Coils made of copper tubes with aluminium fins Recommended for the Middle East, sand storms. 30XA 252-1702without slots without slots Possibility to add specialised condenser treatment.

Accessories Description Advantages Use

CCN JBus gateway See option 148B See option 148B See option 148B

CCN BacNet gateway See option 148C See option 148C See option148C

CCN LON Talk gateway See option 148D See option 148D See option148D

Connection sleeve Piping to be welded with Victaulic connection Ease-of-installation 30XA 252-1702

Energy Management Module EMM See controls manual Easy connection by wired connection to a building management system 30XA 252-1702

Lead-lag kit Supplementary water outlet temperature sensor kit, Optimised operation of two chillers connected 30XA 252-1502field-installed, allows master/slave operation of two in parallel with operating time balancing.chillers connected in parallel

Options and accessories

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Hydronic module (option)

1 2

Legend

Components of unit and hydronic module1 Victaulic screen filter2 Expansion tank3 Safety valve4 Available pressure pump5 Pressure tap valve (see Installation Manual)6 Pressure gauge to measure the component pressure loss (see Installation Manual)7 System vent valve, pressure gauge8 Drain valve9 Water flow control valve10 Evaporator11 Evaporator defrost heater (option)12 Hydronic module defrost heater13 Air vent (evaporator)14 Water purge (evaporator)15 Expansion compensator (flexible connections)16 Flow switch17 Water temperature sensor

System components18 Air vent19 Flexible connection20 Shut-down valves21 Charge valve

--- Hydronic module (option)

Typical hydronic circuit diagram

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Physical dataUnit with MCHX heat exchanger (standard)

30XA high-ambient temperature version252 302 352 402 452 502 602 702 752 802 852 902 1002 1102 1202 1302 1352 1402 1502 1702

Nominal cooling capacity* Standard unit kW 274 300 326 393 451 508 616 677 726 792 837 899 999 1146 1245 1352 1440 1466 1521 1673

Tons 78 85 93 112 128 144 175 192 206 225 238 256 284 326 354 384 409 417 432 476

Cooling capacity** Standard unit kW 249 271 292 361 413 465 565 620 667 727 768 825 916 1052 1144 1240 1318 1346 1395 1536

Tons 71 77 83 103 117 132 161 176 190 207 218 235 261 299 325 353 375 383 397 437

Operating weight***Standard unit kg 3840 3880 3920 4780 4850 5330 6260 6410 6710 7010 7560 7860 8440 10440 10880 11260 11620 4250/ 4250/ 7560/

8380 8530 7560

Refrigerant R134aStandard unitCircuit A kg 36 37 37 53 55 62 62 62 70 70 77 70 80 69 85 87 87 100 92 77Circuit B kg 38 38 39 37 39 39 62 66 62 57 66 75 84 66 66 68 80 85 95 66Circuit C kg - - - - - - - - - - - - - 100 100 100 96 100 100 77Circuit D kg - - - - - - - - - - - - - - - - - - - 66

Compressors 06T semi-hermetic screw compressors, 50 r/sCircuit A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1Circuit B 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1Circuit C - - - - - - - - - - - - - 1 1 1 1 1 1 1Circuit D - - - - - - - - - - - - - - - - - - - 1

Minimum capacity % 15 15 15 15 15 15 15 15 15 15 15 15 15 10 10 10 10 10 10 8

Control PRO-DIALOG, electronic expansion valve (EXV)

Condensers Aluminium micro-channel heat exchanger

Fans Axial Flying Bird 4 with rotating shroudQuantity, standard unit 6 6 6 8 8 9 11 12 12 12 14 14 16 19 20 20 20 24 24 28Standard total air flow l/s 27083 27083 27083 36111 36111 40625 49653 54167 54167 54167 63194 63194 72222 85764 90278 90278 90278 108333 108333 126389

Standard speed r/s 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7

Evaporator Flooded multi-pipe typeWater content l 58 61 61 66 70 77 79 94 98 119 119 130 140 168 182 203 224 230 240 240Maximum pressure**** kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

Water connections VictaulicWithout hydronic module, inlet/outlet Diameter ‡ in 5 5 5 5 5 5 5 6 6 6 6 6 8 6 6 6 6/8 6/8 6/8 6Outside diameter ‡ mm 141.3 141.3 141.3 141.3 141.3 141.3 141.3 168.3 168.3 168.3 168.3 168.3 219.1 168.3 168.3 168.3 168.3/ 168.3/ 168.3/ 168.3

219.3 219.3 219.3

With hydronic module (option), inlet/outletDiameter in 4 4 4 5 5 5 - - - - - - - - - - - - - -Outside diameter mm 114.3 114.3 114.3 139.7 139.7 139.7 - - - - - - - - - - - - - -Expansion tank volume l 50 50 50 50 50 80 - - - - - - - - - - - - - -Max. water-side operating pressure with hydronic module

kPa 400 400 400 400 400 400 - - - - - - - - - - - - - -

Legend:* Nominal conditions: evaporator entering/leaving water temperature = 12°C/7°C. Outdoor air temperature = 35°C, evaporator fouling factor = 0.000018 m2 K/W** Operating conditions: evaporator entering/leaving water temperature = 12.7°C/7.2°C (45°F/55°F). Outdoor air temperature = 46.1°C (115°F)*** Weights are guidelines only. The refrigerant charge is also given on the unit nameplate. Weight and diameters of connection modules 1 and 2 for sizes 1402 to 1702.**** Max. water-side operating pressure without hydronic module‡ Weight and diameters of connection modules 1 and 2 for sizes 1402 to 1702

Note: Unit sizes 30XA 1402 to 1702 are supplied in two field-assembled modules.Contact your Carrier representative to obtain the performances

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Physical dataUnit with Cu/Al heat exchanger (option 255)

30XA high-ambient temperature version252 302 352 402 452 502 602 702 752 802 852 902 1002 1102 1202 1302 1352 1402 1502 1702

Nominal cooling capacity* Standard unit kW 272 297 325 388 449 501 616 671 724 787 829 893 980 1134 1237 1344 1439 1448 1507 1656

Tons 77 84 92 110 128 142 175 191 206 224 236 254 279 322 352 382 409 412 428 471

Cooling capacity** Standard unit kW 246 267 291 355 410 457 564 613 665 719 757 818 895 1039 1135 1212 1244 1328 1380 1518

Tons 70 76 83 101 117 130 160 174 189 204 215 233 254 295 323 345 354 378 392 432

Operating weight***Standard unit kg 4160 4190 4710 5190 5260 5830 6870 7030 7820 8140 8260 9010 9260 11470 11890 12250 12640 9180 9340 8270

4650 4650 8270

Refrigerant R134aStandard unitCircuit A kg 60 64 70 85 85 102 102 100 129 112 130 129 140 102 112 112 112 140 140 130Circuit B kg 64 64 56 56 56 56 88 95 88 95 95 103 129 92 92 92 98 103 129 95Circuit C kg - - - - - - - - - - - - - 130 130 130 117 130 130 130Circuit D kg - - - - - - - - - - - - - - - - - - - 95

Compressors 06T semi-hermetic screw compressors, 50 r/sCircuit A 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1Circuit B 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1Circuit C - - - - - - - - - - - - - - 1 1 1 1 1 1 1Circuit D - - - - - - - - - - - - - - - - - - - 1

Minimum capacity % 15 15 15 15 15 15 15 15 15 15 15 15 15 10 10 10 10 10 10 8

Control PRO-DIALOG, electronic expansion valve (EXV)

Condensers Copper/aluminium heat exchanger

Fans Axial Flying Bird 4 with rotating shroudQuantity 6 6 7 8 8 9 11 12 13 13 14 15 16 19 20 20 20 24 24 28Standard total air flow l/s 27083 27083 27083 36111 36111 40625 49653 54167 54167 54167 63194 63194 72222 85764 90278 90278 90278 108333 108333 126389

Standard speed r/s 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7 15.7

Evaporator Flooded multi-pipe typeWater content l 58 61 61 66 70 77 79 94 98 119 119 130 140 168 182 203 224 230 240 240Maximum pressure**** kPa 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000

Water connections VictaulicWithout hydronic module, inlet/outlet Diameter in 5 5 5 5 5 5 5 6 6 6 6 6 8 6 6 6 6/8 6/8 6/8 6Outside diameter mm 141.3 141.3 141.3 141.3 141.3 141.3 141.3 168.3 168.3 168.3 168.3 168.3 219.1 168.3 168.3 168.3 168.3/ 168.3/ 168.3/ 168.3

219.3 219.3 219.3

With hydronic module (option), inlet/outletDiameter in 4 4 4 5 5 5 - - - - - - - - - - - - - -Outside diameter mm 114.3 114.3 114.3 139.7 139.7 139.7 - - - - - - - - - - - - - -Expansion tank volume l 50 50 50 50 50 80 - - - - - - - - - - - - - -Max. water-side operating pressure with hydronic module

kPa 400 400 400 400 400 400 - - - - - - - - - - - - - -

Legend:* Nominal conditions: evaporator entering/leaving water temperature = 12°C/7°C. Outdoor air temperature = 35°C, evaporator fouling factor = 0.000018 m2 K/W** Operating conditions: evaporator entering/leaving water temperature = 12.7°C/7.2°C (45°F/55°F). Outdoor air temperature = 46.1°C (115°F)*** Weights are guidelines only. The refrigerant charge is also given on the unit nameplate. **** Max. water-side operating pressure without hydronic module

Note: Unit sizes 30XA 1402 to 1702 are supplied in two field-assembled modules.Contact your Carrier representative to obtain the performances

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Electrical dataUnit with MCHX heat exchanger (standard)

30XA high-ambient temperature version*252 302 352 402 452 502 602 702 752 802 852 902 1002 1102 1202 1302 1352 1402 1502 1702

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

Maximum supply cable sectionCircuits A + B mm2 2x240 2x240 2x240 2x240 2x240 2x240 4x240 4x240 4x240 4x240 4x240 6x240 6x240 4x240 4x240 4x240 6x240 6x240 6x240 4x240

Circuits C + D mm2 - - - - - - - - - - - - - 2x240 2x240 2x240 2x240 2x240 2x240 4x240

Short circuit holding current (TN system)**Circuits A + B kA 38 38 38 38 38 38 50 50 50 50 50 50 50 50 50 50 50 50 50 50Circuits C + D kA - - - - - - - - - - - - - 50 50 50 50 50 50 50

Maximum start-up current***Circuits A + B A 262 262 283 400 507 507 579 608 778 803 807 892 945 579 778 803 889 892 945 807Circuits C + D A - - - - - - - - - - - - - 587 587 587 587 587 587 807

Nominal start-up current****Circuits A + B A 244 244 261 377 479 479 536 560 735 755 759 842 862 536 735 755 839 842 862 759Circuits C + D A - - - - - - - - - - - - - 587 587 587 587 587 587 759

Cosine Phi (maximum)† 0.88 0.87 0.87 0.88 0.88 0.88 0.88 0.88 0.86 0.86 0.86 0.85 0.85 0.88 0.86 0.87 0.85 0.85 0.85 0.86Cosine Phi (nominal)‡ 0.84 0.84 0.83 0.83 0.85 0.85 0.86 0.86 0.84 0.84 0.84 0.82 0.82 0.84 0.83 0.83 0.83 0.82 0.82 0.84

Maximum power input††Circuits A + B kW 126 136 147 172 192 212 257 278 304 323 356 372 435 257 304 353 400 405 435 356Circuits C + D kW - - - - - - - - - - - - - 217 217 217 216 217 217 356

Nominal unit current draw‡Circuits A+B A 149 165 182 210 239 262 320 343 404 423 446 511 549 320 404 439 523 534 549 446Circuits C+D A - - - - - - - - - - - - - 275 275 275 271 275 275 446

Maximum unit current draw (Un) ††Circuits A + B A 208 226 243 284 316 350 423 457 512 542 596 635 734 423 512 588 678 688 734 596Circuits C + D A - - - - - - - - - - - - - 367 367 367 364 367 367 596

Maximum unit current draw (Un – 10%) †Circuits A + B A 219 243 262 305 340 376 455 491 551 583 640 683 790 455 551 633 729 740 790 640Circuits C + D A - - - - - - - - - - - - - 395 395 395 391 395 395 640Legend* Motor and fan electrical data if the unit operates at Eurovent conditions (motor ambient temperature 50°C); 3,6 A, start-up current: 20 A, power input: 1.65 kW** kA eff: efficiency value: rms for English version*** Instantaneous start-up current (operating current of the smallest compressor + fan current + locked rotor current in star connection of the largest compressor). Values obtained at

operation with maximum unit power input.**** Instantaneous start-up current (operating current of the smallest compressor + fan current + locked rotor current in star connection of the largest compressor). Values obtained at

standard Eurovent unit operating conditions: air 35°C, water 12/7°C† Values obtained at operation with maximum unit power input.‡ Values obtained at standard Eurovent unit operating conditions: air 35°C, water 12/7°C†† Values obtained at operation with maximum unit power input. Values given on the unit name plate

Electrical dataUnit with copper/aluminium heat exchanger (option 255)30XA high-ambient temperature version*

252 302 352 402 452 502 602 702 752 802 852 902 1002 1102 1202 1302 1352 1402 1502 1702

Maximum start-up current**Circuits A + B A 272 272 295 400 507 507 579 608 778 807 807 892 945 579 778 803 889 892 945 807Circuits C + D A - - - - - - - - - - - - - 587 587 587 587 587 587 807

Nominal start-up current***Circuits A + B A 244 244 261 377 479 479 536 560 735 759 759 842 862 536 735 755 839 842 862 759Circuits C + D A - - - - - - - - - - - - - 587 587 587 587 587 587 759

Cosine Phi (maximum)**** 0.88 0.87 0.87 0.88 0.88 0.88 0.88 0.88 0.86 0.86 0.86 0.84 0.85 0.88 0.86 0.87 0.85 0.85 0.85 0.86Cosine Phi (nominal)† 0.84 0.84 0.83 0.83 0.85 0.85 0.86 0.86 0.83 0.84 0.84 0.82 0.82 0.84 0.83 0.83 0.83 0.82 0.82 0.84

Maximum power input††Circuits A + B kW 126 136 148 172 192 212 257 278 306 325 356 373 435 257 304 353 400 405 435 356Circuits C + D kW - - - - - - - - - - - - - 217 217 217 216 217 217 356

Nominal unit current draw†Circuits A + B A 149 165 185 210 239 262 320 343 407 427 446 514 549 320 404 439 523 534 549 446Circuits C + D A - - - - - - - - - - - - - 275 275 275 275 275 275 446

Maximum unit current draw (Un)††Circuits A + B A 208 226 247 284 316 350 423 457 516 546 596 639 734 423 512 588 678 688 734 596Circuits C + D A - - - - - - - - - - - - - 367 367 367 364 367 367 596

Maximum unit current draw (Un – 10%)****Circuits A + B A 219 243 266 305 340 376 455 491 555 587 640 687 790 455 551 633 729 740 790 640Circuits C + D A - - - - - - - - - - - - - 395 395 395 391 395 395 640Legend* Motor and fan electrical data if the unit operates at Eurovent conditions (motor ambient temperature 50°C); 3,6 A, start-up current: 20 A, power input: 1.65 kW** Instantaneous start-up current (operating current of the smallest compressor + fan current + locked rotor current in star connection of the largest compressor). Values obtained at

operation with maximum unit power input.*** Instantaneous start-up current (operating current of the smallest compressor + fan current + locked rotor current in star connection of the largest compressor). Values obtained at

standard Eurovent unit operating conditions: air 35°C, water 12/7°C**** Values obtained at operation with maximum unit power input.† Values obtained at standard Eurovent unit operating conditions: air 35°C, water 12/7°C †† Values obtained at operation with maximum unit power input. Values given on the unit name plate

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Electrical data notes

• 30XA 252-1002 units have a single power connection point locatedimmediately upstream of the two main disconnect switches.

• 30XA 1102-1702 units have two power connection points located upstreamof the main disconnect switches.

• The control box includes: - One main disconnect switch per circuit- Starter and motor protection devices for each compressor, the fans and

the pump- Control devices

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

• The Carrier 30XA units are designed and built to ensure conformance withthese codes. The recommendations of European standard EN 60 204-1(corresponds to IEC 60204-1) (machine safety - electrical machinecomponents - part 1: general regulations) are specifically taken intoaccount, when designing the electrical equipment.

Notes:• Generally the recommendations of IEC 60364 are accepted as compliance

with the requirements of the installation directives. Conformance with EN60204 is the best means of ensuring compliance with the MachinesDirective § 1.5.1.

• Annex B of EN 60204-1 describes the electrical characteristics used for theoperation of the machines.

1. The operating environment for the 30XA units is specified below:• Environment* - Environment as classified in EN 60721 (corresponds to

IEC 60721) :- outdoor installation*- ambient temperature range: minimum temperature -20°C to +55°C,

class 4K4H*- altitude: lower than or equal to 2000 m- presence of hard solids, class 4S2 (no significant dust present)- presence of corrosive and polluting substances, class 4C2 (negligible)

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 factory-installed disconnect switch(es)/circuit breaker(s) is (are) of a type

suitable for power interruption in accordance with EN 60947-3 (correspondsto IEC 60947-3).

6. The units are designed for simplified connection on TN(s) networks (IEC 60364). For IT networks derived currents may interfere with networkmonitoring elements, and it is recommended to create an IT type divider forthe system units that require this and/or a TN type divider for Carrier units.Please consult the appropriate local organisations to define the monitoringand protection elements and carry out the electrical installation.

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

* The required protection level for this class is IP43B (according to referencedocument IEC 60529). All 30XA units are protected to IP54 and fulfil thisprotection condition.

11

Sound levels30XA high-ambient temperature version

252 302 352 402 452 502 602 702 752 802 852 902 1002 1102 1202 1302 1352 1402 1502 1702

Sound power level* dB(A) 94 94 94 95 95 95 96 96 98 98 98 99 98 99 100 99 100 101 100 101

Sound pressure level at 10 m** dB(A) 62 62 62 63 63 63 63 63 65 65 65 66 65 66 67 66 67 68 67 67* 10-12 W - In accordance with ISO 9614-1 and certified by Eurovent

** Average sound pressure level, unit in a free field on a reflective surface

Part load performances

Part load performances30XA 252 302 352 402 452 502 602 702 752 802 852 902 1002 1102 1202 1302 1352 1402 1502 1702

High ambient temperature version

IPLV kW/kW 4.31 4.48 4.58 4.45 4.67 4.69 4.48 4.64 4.61 4.57 4.55 4.32 4.40 4.66 4.54 4.66 4.62 4.56 4.57 4.44

ESEER kW/kW 3.93 4.03 4.08 4.05 4.19 4.19 4.03 4.18 3.99 4.10 4.14 3.91 3.95 4.24 4.10 4.23 4.15 4.13 4.16 4.04

With the rapid increase in energy costs and the care aboutenvironmental impacts of electricity production, powerconsumption of air conditioning equipment has become animportant topic. The energy efficiency of a liquid chiller atfull load is rarely representative of the actual performance ofthe units, as on average a chiller works less than 5% of thetime at full load.

IPLV (in accordance with ARI 550/590-98)The IPLV (integrated part load value) allows evaluation ofthe average energy efficiency based on four operatingconditions defined by the ARI (American RefrigerationInstitute). The IPLV is the average weighted value of theenergy efficiency ratios (EER) at different operatingconditions, weighted by the operating time.

IPLV (Integrated Part Load Value)Load Air temperature Energy Operating(%) (°C) efficiency time, %100 35 EER1 175 26.7 EER2 4250 18.3 EER3 4525 12.8 EER4 12

IPLV = EER1 x 1% + EER2 x 42% + EER3 x 45% + EER4 x 12%

The heat load of a building depends on many factors, suchas the outside air temperature, the exposure to the sun andits occupation.

Consequently it is preferable to use the average energyefficiency, calculated at several operating points that arerepresentative for the unit utilisation.

ESEER (in accordance with EUROVENT)The ESEER (European seasonal energy efficiency ratio)permits evaluation of the average energy efficiency at partload, based on four operating conditions defined by Eurovent.The ESEER is the average value of energy efficiency ratios(EER) at different operating conditions, weighted by theoperating time.

ESEER (European seasonal energy efficiency ratio)Load Air temperature Energy Operating(%) (°C) efficiency time, %100 35 EER1 375 30 EER2 3350 25 EER3 4125 20 EER4 23

ESEER = EER1 x 3% + EER2 x 33% + EER3 x 41% + EER4 x 23%

12

Operating limitsEvaporator water temperature

°C Minimum Maximum

Water entering temperature at start-up - 45Water entering temperature during operation 6.8 21Water leaving temperature during operation 3.3 15Note: If the leaving water temperature is below 4°C, a glycol/water solution or the frostprotection option must be used.

Condenser air temperature°C Minimum Maximum

Storage -20 68

Operation -10 55** Part-load operation

Note: If the air temperature is below 0°C, a glycol/water solution or the frost protectionoption must be used.

Evaporator water flow rate, l/s30XA Minimum Maximum*

252 3.6 37.5302 4 40.5352 4.3 40.5402 5.3 34.1452 6 36.9502 6.7 42602 8.1 45702 8.9 56.1752 9.6 59.1802 10.4 67.1852 11 67.1902 11.8 73.91002 13.1 83.91102 15.1 87.81202 16.4 92.91302 17.5 96.11352 18.8 107.41402 19.3 107.41502 19.9 109.41702 22 107.4

* The maximum water flow rate corresponds to a pressure drop of 100 kPa.

Legend

Part load

Operating range, standard unit.

Below 0°C air temperature the unit must either be equipped with theevaporator frost protection option (41A or 41B), or the water loop must beprotected against frost by using a frost protection solution (by the installer).

Operating range

Evaporator leaving water temperature, °C

Ent

erin

g ai

r te

mpe

ratu

re, °

C

13

Dimensions/clearances30XA 252-352 - MCHX heat exchanger (standard)30XA 252-302 - Cu/Al heat exchanger (option 255)

30XA 402-452 - MCHX heat exchanger (standard)30XA 352-452 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding.Before designing an installation, consultthe certified dimensional drawings,available on request.

Legend:All dimensions are given in mm.

Required clearances for maintenanceand air flow

Recommended space for evaporatortube removal

Water inlet

Water outlet

Air outlet – do not obstruct

Power supply connection

Control circuit connection

14

30XA 602-802 - MCHX heat exchanger (standard)30XA 602-702 - Cu/Al heat exchanger (option 255)

Dimensions/clearances30XA 502 - MCHX heat exchanger (standard)30XA 502 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensional drawings, available on request.

Legend:All dimensions are given in mm.

Required clearances for maintenanceand air flow

Recommended space for evaporatortube removal

Water inlet

Water outlet

Air outlet – do not obstruct

Power supply connection

Control circuit connection

15

Dimensions/clearances30XA 852-902 - MCHX heat exchanger (standard)30XA 752-852 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensional drawings, available on request.

Legend:All dimensions are given in mm.

Required clearances for maintenance and air flow

Recommended space for evaporator tuberemoval

Water inlet

Water outlet

Air outlet – do not obstruct

Power supply connection

Control circuit connection

16

Dimensions/clearances30XA 1002 - MCHX heat exchanger (standard)30XA 902-1002 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certifieddimensional drawings, available on request.

Legend:All dimensions are given in mm.

Required clearances for maintenance and air flow

Recommended space for evaporator tuberemoval

Water inlet

Water outlet

Air outlet – do not obstruct

Power supply connection

Control circuit connection

17

Dimensions/clearances30XA 1102-1352 - MCHX heat exchanger (standard)30XA 1102-1352 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensionaldrawings, available on request.

Legend:All dimensions are given in mm.

Required clearances for maintenance and air flow

Recommended space for evaporator tuberemoval

Water inlet

Water outlet

Air outlet – do not obstruct

Power supply connection

Control circuit connection

18

Dimensions/clearances30XA 1402-1502, module 1/2 - MCHX heat exchanger (standard)30XA 1402-1502, module 1/2 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensional drawings, available on request.

Legend:All dimensions are given in mm.

Required clearances for maintenance and air flow

Recommended space for evaporator tuberemoval

Water inlet

Water outlet (to be connected to the water inlet of module 2)

Air outlet – do not obstruct

Power supply connection

Control circuit connection

Module 2

19

Dimensions/clearances30XA 1402-1502, module 2/2 - MCHX heat exchanger (standard)30XA 1402-1502, module 2/2 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensional drawings, available on request.

Unit sizes 1402-1502 are supplied in two field-assembled modules (connection pipe completion to be done by the installer).

Legend:All dimensions are given in mm.

Required clearances for maintenance and air flow

Recommended space for evaporator tuberemoval

Water inlet (to be connected to the water outlet ofmodule 1)

Water outlet

Air outlet – do not obstruct

Power supply connection

Control circuit connection

Mod

ule

1

20

Dimensions/clearances30XA 1702, module 1/2 - MCHX heat exchanger (standard)30XA 1702, module 1/2 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensional drawings, available on request.Unit size 1702 is supplied in two field-assembled modules (connection pipe completion to be done by the installer).

Legend:All dimensions are given in mm.

Required clearances for maintenanceand air flow

Recommended space for evaporatortube removal

Water inlet

Water outlet (to be connected to thewater inlet of module 2)

Air outlet – do not obstruct

Power supply connection

Control circuit connection

Module 2

21

Dimensions/clearances30XA 1702, module 2/2 - MCHX heat exchanger (standard)30XA 1702, module 2/2 - Cu/Al heat exchanger (option 255)

NOTE: Drawings are not contractually binding. Before designing an installation, consult the certified dimensional drawings, available on request.Unit size 1702 is supplied in two field-assembled modules (connection pipe completion to be done by the installer).

Legend:All dimensions are given in mm.

Required clearances for maintenanceand air flow

Recommended space for evaporatortube removal

Water inlet

Water outlet (to be connected to thewater inlet of module 2)

Air outlet – do not obstruct

Power supply connection

Control circuit connection

Mod

ule

1

22

Cooling capacities (SI)Unit with MCHX heat exchanger (standard)

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 5

°C

Air

tem

per

atur

e, °

C

3035

4046

4952

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

AkW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

a

252

267

6979

1313

257

7685

1212

247

8493

1212

233

9310

211

1022

599

107

1110

217

104

113

109

302

294

7786

1414

282

8493

1313

269

9310

213

1225

310

411

212

1024

411

011

812

1023

511

612

411

9352

320

8493

1516

307

9310

215

1529

210

111

014

1427

311

412

313

1226

412

112

913

1125

412

813

612

11402

382

9610

818

3136

910

511

718

3035

511

512

717

2833

812

814

016

2532

813

514

716

2431

814

315

415

23452

440

113

125

2134

425

124

136

2032

408

136

148

1930

387

153

164

1827

376

161

173

1826

364

171

182

1724

502

496

124

138

2434

479

136

150

2331

459

149

163

2229

435

166

180

2126

422

176

190

2025

407

186

200

1923

602

599

154

171

2942

578

169

186

2839

556

185

202

2636

527

206

223

2533

512

218

234

2431

496

231

247

2429

702

660

163

182

3134

637

178

197

3032

612

195

214

2929

581

218

237

2827

564

230

249

2725

546

244

262

2624

752

708

190

209

3435

683

208

226

3332

658

228

246

3130

625

254

273

3028

607

269

287

2926

567

271

289

2723

802

773

202

223

3733

746

222

242

3631

717

243

263

3428

681

271

291

3226

662

287

307

3225

612

285

305

2921

852

818

206

230

3936

789

226

249

3834

758

248

271

3632

720

277

299

3429

699

293

315

3327

654

296

318

3124

902

878

232

256

4234

847

254

278

4032

815

279

302

3930

774

312

334

3727

752

330

352

3626

677

317

340

3221

1002

976

249

278

4634

942

272

301

4532

905

299

327

4330

859

334

362

4127

835

354

381

4026

773

353

380

3722

1102

1119

281

312

5339

1080

307

338

5136

1038

336

367

4934

985

376

405

4731

957

397

427

4629

895

401

430

4326

1202

1216

314

347

5840

1174

344

376

5638

1129

376

409

5435

1073

421

452

5132

1043

445

476

5030

956

438

468

4626

1302

1322

346

379

6344

1275

379

412

6141

1226

416

449

5838

1163

466

498

5535

1106

478

509

5332

994

460

491

4726

1352

1411

380

411

6741

1360

417

448

6538

1306

457

488

6235

1238

512

542

5932

1124

494

524

5427

901

424

453

4318

1402

1433

363

404

6843

1383

397

437

6640

1330

436

475

6337

1263

487

526

6034

1228

515

554

5832

1067

477

514

5125

1502

1489

375

416

7144

1436

411

451

6841

1380

450

490

6638

1309

504

543

6235

1272

533

572

6133

1087

487

525

5224

1702

1635

413

459

7853

1578

452

498

7550

1517

495

541

7246

1440

554

598

6942

1399

586

630

6740

1252

565

608

6032

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 6

°C

Air

tem

per

atur

e, °

C

3035

4046

4952

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

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ITC

OO

LC

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LC

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OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

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LC

APC

OM

PU

NIT

CO

OL

CO

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30X

AkW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

a

252

276

7180

1314

266

7786

1313

255

8594

1212

240

9510

411

1123

210

010

911

1022

410

511

411

10302

303

7887

1414

291

8695

1413

278

9410

313

1226

110

511

412

1125

211

112

012

1024

311

812

612

10352

330

8695

1617

316

9410

315

1630

110

311

214

1428

211

612

413

1327

212

313

113

1226

213

013

912

11402

395

9710

919

3338

110

611

818

3136

711

612

817

2934

913

014

217

2633

913

714

916

2532

914

515

616

24452

454

115

127

2236

438

127

138

2134

421

139

150

2031

399

155

166

1928

387

164

175

1827

372

171

182

1825

502

511

126

140

2435

493

138

152

2333

473

151

165

2331

448

169

183

2128

435

179

193

2126

412

186

199

2024

602

619

157

174

2944

597

172

189

2841

574

188

205

2738

545

210

226

2635

529

222

238

2533

513

234

250

2431

702

681

165

185

3236

657

181

200

3133

632

198

217

3031

599

221

240

2928

581

234

253

2827

563

248

266

2725

752

730

193

212

3536

705

211

230

3434

678

231

250

3232

644

258

277

3129

626

273

291

3027

577

270

288

2724

802

797

206

226

3834

769

225

245

3732

739

247

267

3530

702

276

295

3327

682

291

311

3326

623

285

304

3022

852

843

210

233

4038

813

230

253

3936

782

252

275

3733

741

281

304

3530

720

298

320

3429

667

297

319

3225

902

905

236

260

4336

873

259

282

4233

839

283

306

4031

797

316

339

3828

775

335

357

3727

681

313

335

3221

1002

1007

253

282

4836

971

277

306

4633

933

304

332

4431

885

340

367

4228

860

359

387

4127

715

320

347

3419

1102

1153

285

316

5541

1113

312

343

5338

1070

342

372

5135

1015

382

411

4832

986

404

433

4731

908

398

427

4326

1202

1254

319

352

6042

1210

349

382

5840

1164

383

415

5537

1105

427

459

5333

1074

452

483

5132

962

431

462

4626

1302

1362

352

385

6546

1314

386

419

6343

1263

423

456

6040

1198

473

505

5736

1133

481

513

5433

1012

460

491

4827

1352

1454

388

419

6943

1401

425

455

6740

1345

466

496

6437

1274

521

551

6134

1084

463

493

5225

914

421

450

4418

1402

1478

370

410

7045

1425

404

444

6842

1370

443

482

6539

1301

495

534

6235

1264

524

562

6034

1088

477

514

5225

1502

1534

382

422

7346

1479

418

458

7043

1421

458

498

6840

1348

512

551

6436

1309

542

580

6234

1053

464

501

5023

1702

1684

420

466

8056

1625

459

505

7752

1562

503

549

7449

1483

562

607

7144

1440

595

639

6942

1285

570

613

6134

Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P k

WC

oolin

g ca

pac

ity

CO

MP

kW

Com

pre

ssor

pow

er in

put

UN

IT k

WU

nit

pow

er in

put

(com

pre

ssor

s, fa

ns a

nd c

ontr

ol c

ircui

t)C

OO

L l/

sE

vap

orat

or w

ater

flow

rat

eC

OO

L kP

aE

vap

orat

or p

ress

ure

dro

p

Ap

plic

atio

n d

ata:

Sta

ndar

d u

nits

, ref

riger

ant:

R13

4aE

vap

orat

or t

emp

erat

ure

rise:

5 K

Eva

por

ator

flui

d: c

hille

d w

ater

Foul

ing

fact

or: 0

.18

x 10

-4(m

2K

)/W

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

23

Cooling capacities (SI)Unit with MCHX heat exchanger (standard)

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 7

.2°C

Air

tem

per

atur

e, °

C

3035

4046

4952

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

AkW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

a

252

286

7281

1415

276

7988

1314

264

8695

1313

249

9610

512

1224

110

111

011

1123

310

711

511

10302

315

8089

1515

302

8796

1414

288

9610

514

1327

110

711

613

1226

211

312

212

1125

212

012

812

10352

343

8897

1618

328

9610

516

1731

210

511

415

1529

211

812

714

1328

212

513

413

1326

412

713

513

11402

409

9911

120

3539

510

812

019

3338

011

813

018

3136

113

214

417

2835

113

915

117

2734

114

715

816

25452

470

118

130

2238

454

129

141

2236

436

141

153

2133

413

158

169

2030

401

167

178

1929

373

166

177

1825

502

530

128

143

2538

511

141

155

2435

490

154

168

2333

465

172

186

2229

451

183

196

2128

424

186

200

2025

602

642

160

177

3147

620

175

192

3044

596

192

208

2841

565

214

230

2737

549

226

242

2635

524

234

250

2532

702

706

169

188

3438

681

185

204

3235

655

202

221

3133

620

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Leg

end

LWT

Leav

ing

wat

er t

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CA

P k

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g ca

pac

ity

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kW

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pre

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er in

put

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put

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pre

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ndar

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rise:

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Eva

por

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flui

d: c

hille

d w

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Foul

ing

fact

or: 0

.18

x 10

-4(m

2K

)/W

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

24

Cooling capacities (SI)Unit with copper/aluminium heat exchanger (option 255)

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 5

°C

Air

tem

per

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e, °

C

3035

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h am

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unit

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Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P k

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g ca

pac

ity

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MP

kW

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pre

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pow

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put

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WU

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put

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pre

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ns a

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n d

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ndar

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, ref

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ant:

R13

4aE

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orat

or t

emp

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ure

rise:

5 K

Eva

por

ator

flui

d: c

hille

d w

ater

Foul

ing

fact

or: 0

.18

x 10

-4(m

2K

)/W

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

25

Cooling capacities (SI)Unit with copper/aluminium heat exchanger (option 255)

Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P k

WC

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g ca

pac

ity

CO

MP

kW

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pre

ssor

pow

er in

put

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IT k

WU

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er in

put

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pre

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t)C

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dro

p

Ap

plic

atio

n d

ata:

Sta

ndar

d u

nits

, ref

riger

ant:

R13

4aE

vap

orat

or t

emp

erat

ure

rise:

5 K

Eva

por

ator

flui

d: c

hille

d w

ater

Foul

ing

fact

or: 0

.18

x 10

-4(m

2K

)/W

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 7

.2°C

Air

tem

per

atur

e, °

C

3035

4046

4952

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

AkW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

a

252

285

7584

1415

274

8291

1314

262

9099

1313

247

100

109

1211

239

105

114

1111

230

111

120

1110

302

311

8191

1515

298

8999

1414

285

9810

714

1326

811

011

913

1125

911

612

512

1124

912

313

212

10352

341

8696

1618

327

9410

416

1631

110

411

315

1529

211

612

514

1328

212

313

213

1327

213

114

013

12402

404

105

117

1934

390

115

127

1932

375

126

138

1830

356

140

152

1727

345

147

159

1626

327

151

163

1623

452

468

121

133

2238

451

132

144

2235

434

145

157

2133

411

162

174

2030

399

171

183

1928

371

171

182

1825

502

522

131

145

2536

503

143

158

2434

483

157

171

2332

457

176

190

2229

444

186

200

2127

412

186

200

2024

602

642

163

180

3147

619

178

195

3044

595

195

212

2841

564

218

234

2737

547

230

246

2635

494

222

238

2429

702

700

175

194

3337

675

192

211

3235

648

210

229

3132

613

234

253

2929

595

248

266

2828

531

234

252

2522

752

755

199

220

3638

728

218

238

3536

700

239

259

3334

665

266

286

3230

646

282

301

3129

579

269

288

2824

802

821

213

234

3936

791

232

254

3834

760

254

275

3631

720

284

305

3428

691

296

316

3326

558

249

269

2718

852

865

223

246

4140

833

244

267

4037

800

267

290

3834

758

298

321

3631

729

312

334

3529

592

267

289

2820

902

932

249

273

4437

898

272

296

4335

863

298

321

4132

818

333

356

3929

771

338

360

3726

587

268

290

2816

1002

1024

270

297

4937

986

295

322

4734

946

323

350

4532

896

361

387

4329

850

371

396

4126

656

305

330

3116

1102

1183

304

335

5642

1141

333

363

5440

1096

364

394

5237

1038

406

436

5033

1001

426

455

4831

815

365

394

3921

1202

1291

339

372

6244

1245

371

404

5942

1196

406

438

5739

1134

453

485

5435

1086

470

501

5232

846

384

414

4020

1302

1403

374

407

6749

1352

409

442

6445

1298

449

481

6242

1216

494

526

5837

1106

475

506

5331

932

433

464

4423

1352

1504

409

440

7245

1447

448

479

6942

1388

491

521

6639

1250

511

541

6032

1022

428

458

4922

847

394

423

4016

1402

1512

390

430

7247

1457

426

466

6943

1399

466

506

6740

1326

521

560

6337

1249

529

567

6033

975

435

472

4721

1502

1575

405

445

7548

1516

443

483

7245

1455

485

524

6941

1378

542

581

6637

1292

547

585

6233

1012

457

494

4821

1702

1729

443

489

8259

1666

485

531

7955

1600

531

577

7651

1516

594

638

7246

1453

617

661

6942

1190

533

576

5729

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 1

0°C

Air

tem

per

atur

e, °

C

3035

4046

4952

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

AkW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

akW

kWkW

l/s

kPa

kWkW

kWl/

skP

a

252

310

7887

1517

298

8594

1416

285

9310

214

1526

810

411

313

1325

910

911

812

1225

011

612

412

11302

338

8595

1617

325

9310

315

1631

010

211

115

1529

111

412

314

1328

112

113

013

1227

112

813

713

11352

371

9010

018

2035

599

108

1719

338

108

118

1617

317

121

131

1515

307

129

138

1514

296

136

145

1414

402

439

110

122

2139

424

120

132

2037

407

131

143

1934

386

145

157

1831

375

153

165

1829

338

148

159

1624

452

508

126

139

2443

490

138

150

2340

470

151

163

2238

446

169

181

2134

433

179

190

2132

381

164

176

1825

502

567

137

152

2742

546

150

164

2639

524

164

178

2536

496

184

198

2433

482

195

209

2331

424

179

193

2024

602

699

171

188

3354

674

187

204

3250

647

204

221

3147

613

228

244

2942

595

241

257

2840

498

208

224

2429

702

761

184

203

3643

733

201

220

3540

704

219

238

3437

666

245

264

3233

646

259

278

3132

536

220

238

2622

752

822

209

229

3944

792

228

248

3841

761

249

269

3638

722

278

298

3435

701

294

313

3333

552

237

256

2621

802

892

223

245

4341

859

244

265

4138

824

267

288

3936

780

298

318

3732

723

295

316

3528

590

247

267

2819

852

939

234

257

4545

904

256

279

4342

868

280

302

4139

821

312

335

3936

762

310

333

3631

626

266

288

3022

902

1013

262

285

4843

975

286

309

4740

935

312

336

4537

886

348

371

4234

783

324

347

3727

650

279

301

3119

1002

1111

284

310

5342

1069

310

336

5139

1025

339

365

4936

969

379

404

4633

814

332

357

3924

700

307

332

3318

1102

1284

319

350

6149

1237

349

379

5945

1188

381

411

5742

1125

425

455

5438

1029

413

442

4932

826

347

376

3921

1202

1401

356

389

6751

1349

389

422

6448

1296

425

458

6244

1228

474

506

5940

1104

451

482

5333

886

378

409

4222

1302

1523

393

426

7356

1466

430

463

7052

1406

471

503

6748

1253

475

507

6039

1153

469

501

5533

980

426

458

4725

1352

1631

431

462

7852

1568

471

502

7548

1503

516

547

7245

1176

428

458

5628

1058

419

448

5123

874

379

408

4216

1402

1642

409

449

7853

1580

447

487

7550

1517

489

528

7246

1436

545

584

6942

1253

495

533

6032

1057

444

482

5024

1502

1708

425

466

8255

1644

465

505

7851

1576

508

548

7547

1490

568

606

7143

1231

484

522

5930

1073

455

493

5123

1702

1875

465

512

9067

1806

508

554

8663

1734

556

602

8358

1641

621

666

7852

1471

587

631

7043

1248

526

569

6031

26

Cooling capacities (Imperial)Unit with MCHX heat exchanger (standard)

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 4

2°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

ATo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

G

252

7869

7918

53.

874

7786

178

3.5

7185

9416

93.

267

9410

316

02.

965

9910

815

52.

763

104

113

150

2.6

302

8577

8620

43.

982

8594

195

3.6

7794

103

185

3.3

7310

511

317

42.

971

110

119

169

2.8

6811

612

416

32.

6352

9384

9322

24.

689

9310

221

24.

284

103

112

200

3.8

7911

512

418

83.

476

121

130

182

3.2

7412

813

717

63.

0402

111

9510

826

59.

010

710

611

825

58.

410

211

712

924

57.

798

129

141

233

7.1

9513

614

822

76.

892

143

154

221

6.4

452

128

113

125

305

9.7

123

126

137

294

9.1

117

139

151

281

8.4

112

154

166

267

7.6

109

162

174

260

7.3

106

171

182

252

6.9

502

144

124

138

344

9.6

138

137

151

331

8.9

132

152

166

316

8.2

126

168

182

300

7.5

122

177

191

292

7.1

116

183

197

277

6.5

602

174

154

171

416

11.9

167

170

187

400

11.0

160

188

205

383

10.2

153

209

225

365

9.3

148

220

236

355

8.9

144

231

247

345

8.4

702

192

162

182

458

9.7

184

180

199

440

9.0

176

199

218

421

8.3

168

220

239

401

7.6

163

232

250

390

7.2

159

244

263

379

6.8

752

206

190

209

492

9.9

198

210

228

473

9.2

189

232

251

453

8.5

180

257

275

431

7.8

176

271

289

420

7.4

165

271

289

393

6.6

802

224

202

223

537

9.3

216

224

244

516

8.7

207

248

268

494

8.0

197

274

294

470

7.3

192

289

309

458

7.0

178

286

305

425

6.1

852

237

206

230

568

10.3

228

228

251

545

9.6

218

252

275

522

8.9

208

280

302

497

8.1

202

295

317

484

7.7

190

296

318

453

6.9

902

255

232

256

610

9.7

245

257

280

586

9.0

235

284

307

561

8.3

223

315

338

534

7.6

218

332

354

520

7.3

199

322

345

475

6.1

1002

284

249

278

678

9.7

272

275

303

651

9.0

261

305

333

623

8.3

248

338

365

593

7.6

242

356

383

578

7.2

224

354

380

536

6.3

1102

325

281

312

778

11.1

313

310

341

748

10.3

299

343

374

716

9.5

285

380

410

681

8.7

278

400

430

663

8.2

262

406

435

626

7.4

1202

354

314

347

846

11.5

340

347

380

813

10.7

326

384

416

778

9.8

310

426

457

742

9.0

302

448

480

723

8.6

278

439

470

665

7.3

1302

385

347

380

919

12.6

369

383

416

883

11.7

354

425

457

845

10.7

337

471

503

804

9.8

321

481

513

767

9.0

289

462

493

692

7.4

1352

410

381

412

980

11.7

394

421

452

941

10.8

376

467

497

899

9.9

358

518

548

855

9.1

322

490

519

769

7.4

263

425

454

628

5.1

1402

417

364

404

997

12.2

401

402

442

958

11.3

384

445

484

917

10.5

366

493

532

874

9.6

356

519

558

851

9.1

313

482

520

748

7.2

1502

433

376

416

1035

12.5

416

415

455

994

11.6

398

460

499

951

10.7

379

510

549

906

9.8

369

538

576

881

9.3

320

496

533

765

7.1

1702

476

413

459

1137

15.2

457

456

503

1092

14.1

437

505

551

1046

13.0

417

560

605

996

11.9

406

591

635

969

11.3

365

567

610

871

9.2

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 4

4°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

ATo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

G

252

8070

8019

24.

077

7887

184

3.7

7386

9517

63.

469

9610

416

63.

167

100

109

161

2.9

6510

511

415

62.

7302

8878

8721

14.

184

8796

202

3.8

8096

105

192

3.5

7610

611

518

13.

173

112

121

175

2.9

7111

812

716

92.

7352

9686

9523

04.

992

9510

421

94.

487

105

114

207

4.0

8211

712

619

53.

679

124

132

189

3.4

7613

013

918

23.

2402

115

9710

927

59.

511

110

711

926

58.

910

611

913

125

38.

210

113

114

324

27.

598

138

149

235

7.2

9614

515

622

96.

8452

132

116

127

316

10.3

127

128

140

304

9.6

121

142

153

290

8.8

115

157

168

276

8.1

112

165

177

269

7.7

108

171

182

259

7.1

502

149

126

140

356

10.1

143

139

154

342

9.4

137

154

168

327

8.7

130

171

185

311

7.9

126

181

194

302

7.5

121

188

201

291

7.0

602

180

157

174

431

12.6

173

174

190

415

11.7

166

192

209

397

10.8

158

212

229

378

9.9

154

223

240

368

9.4

149

235

251

357

8.9

702

198

166

185

474

10.2

191

183

202

456

9.5

182

202

221

436

8.8

173

224

243

415

8.0

169

236

255

404

7.6

164

249

267

392

7.2

752

213

193

212

509

10.4

204

214

232

489

9.7

196

236

255

468

9.0

186

261

280

446

8.2

182

275

293

435

7.8

168

271

289

401

6.8

802

232

206

226

555

9.8

223

228

248

534

9.1

213

252

272

511

8.4

203

279

299

486

7.7

198

294

313

474

7.4

181

286

305

434

6.3

852

246

210

234

587

10.9

236

232

256

564

10.2

226

257

280

540

9.4

215

285

307

514

8.6

209

300

322

500

8.1

194

298

320

464

7.1

902

264

237

261

631

10.2

253

261

285

606

9.5

242

289

312

579

8.8

231

320

343

552

8.0

225

337

360

538

7.7

198

314

337

474

6.1

1002

293

254

282

701

10.2

282

280

309

673

9.5

269

310

338

644

8.8

256

344

372

613

8.0

250

362

390

597

7.6

226

349

376

541

6.4

1102

337

286

317

805

11.7

323

316

347

774

10.9

310

350

380

740

10.0

295

387

417

705

9.2

287

407

437

686

8.7

265

400

429

633

7.5

1202

366

320

353

875

12.2

352

354

386

841

11.3

337

391

424

805

10.4

321

433

465

767

9.5

312

456

487

747

9.1

281

433

464

671

7.4

1302

398

353

387

951

13.3

382

391

424

914

12.3

365

433

465

874

11.4

348

480

512

832

10.4

315

458

489

754

8.6

290

452

483

693

7.4

1352

424

389

420

1014

12.3

407

430

461

973

11.4

389

476

507

930

10.5

369

528

558

883

9.5

287

414

444

685

6.0

268

423

452

640

5.3

1402

431

371

411

1032

12.9

414

410

449

991

12.0

396

453

493

948

11.0

378

502

541

903

10.1

365

524

563

874

9.5

318

479

517

761

7.3

1502

448

384

424

1071

13.2

430

424

463

1028

12.3

411

469

508

983

11.3

391

519

558

936

10.3

381

547

586

911

9.8

308

466

504

737

6.6

1702

492

421

468

1176

16.1

472

465

511

1130

14.9

452

515

560

1082

13.7

431

570

615

1030

12.5

419

601

645

1002

11.9

376

572

616

898

9.7

Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P T

ons

Coo

ling

cap

acity

C

OM

P k

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t p

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and

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gp

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ater

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Sta

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, ref

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ant:

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rise:

10°

FE

vap

orat

or fl

uid

: chi

lled

wat

erFo

ulin

g fa

ctor

: 0.0

001

h ft

2°F

/Btu

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

27

Cooling capacities (Imperial)Unit with MCHX heat exchanger (standard)

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 4

5°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

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ITC

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LC

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LC

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CO

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CAP

CO

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LC

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LC

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CO

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CAP

CO

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CO

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30X

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pm

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pm

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pm

ft W

GTo

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kWg

pm

ft W

GTo

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pm

ft W

G

252

8271

8019

64.

178

7988

187

3.8

7587

9617

93.

571

9610

516

93.

269

101

110

164

3.0

6610

611

515

82.

8302

9079

8821

54.

286

8796

205

3.9

8197

106

195

3.6

7710

711

618

43.

274

113

122

178

3.0

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912

817

22.

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9887

9623

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093

9610

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34.

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106

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211

4.1

8311

812

719

83.

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125

133

192

3.5

7713

214

018

53.

3402

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811

210

812

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110

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913

125

88.

410

313

214

424

67.

710

013

915

023

97.

497

146

157

233

7.0

452

134

117

129

321

10.6

129

129

141

309

9.8

123

143

155

295

9.1

117

158

170

281

8.3

114

167

178

273

7.9

110

173

184

263

7.3

502

151

127

141

362

10.4

145

141

155

348

9.7

139

156

170

332

8.9

132

173

187

316

8.1

128

182

196

307

7.7

121

185

198

289

6.9

602

183

158

176

439

12.9

176

175

192

422

12.0

169

194

210

404

11.1

161

214

231

384

10.2

156

225

242

374

9.7

152

237

253

363

9.2

702

202

167

187

482

10.5

194

185

204

463

9.8

185

204

223

443

9.0

176

226

245

422

8.2

172

238

257

410

7.8

167

251

269

399

7.4

752

216

195

214

517

10.7

208

215

234

497

10.0

199

238

257

476

9.2

190

264

282

453

8.4

185

278

296

442

8.0

168

269

287

403

6.8

802

236

208

228

565

10.1

227

230

250

543

9.4

217

254

274

519

8.7

207

281

301

495

7.9

201

296

316

482

7.6

185

288

308

441

6.4

852

250

212

236

597

11.2

240

235

258

574

10.4

229

259

282

549

9.6

218

287

310

522

8.8

212

303

325

508

8.4

180

273

295

430

6.2

902

268

239

263

641

10.5

257

264

287

616

9.8

246

292

315

589

9.0

235

323

346

561

8.2

228

340

363

547

7.9

202

317

339

482

6.2

1002

298

256

285

713

10.5

286

283

311

685

9.8

274

313

341

655

9.0

261

347

375

623

8.2

254

366

393

607

7.8

210

321

347

503

5.6

1102

342

289

320

819

12.0

329

319

350

787

11.2

315

353

383

753

10.3

300

390

420

717

9.4

292

411

440

698

9.0

250

376

405

599

6.7

1202

372

324

356

890

12.5

357

357

390

855

11.6

342

395

427

818

10.7

326

437

469

780

9.8

317

460

491

759

9.3

283

433

464

678

7.5

1302

404

357

390

967

13.7

388

394

427

929

12.7

371

437

469

888

11.7

353

484

516

845

10.6

321

462

493

767

8.9

295

456

487

706

7.6

1352

431

393

424

1030

12.7

413

435

465

988

11.7

395

481

511

945

10.8

373

529

559

893

9.7

293

418

448

700

6.2

262

410

439

626

5.0

1402

439

375

415

1049

13.3

421

413

453

1008

12.3

403

457

497

964

11.3

384

506

545

918

10.4

371

529

567

888

9.7

303

451

489

724

6.7

1502

455

387

428

1089

13.6

437

428

468

1045

12.6

418

473

513

999

11.6

397

524

563

951

10.6

385

549

587

921

10.0

294

441

479

704

6.1

1702

500

425

472

1196

16.6

480

470

516

1149

15.4

460

519

565

1100

14.1

438

576

620

1047

12.9

426

606

651

1019

12.2

378

568

612

903

9.8

Hig

h am

bie

nt t

emp

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ure

unit

- L

WT

= 4

6°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

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LC

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LC

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CO

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CAP

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pm

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GTo

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pm

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GTo

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pm

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G

252

8372

8119

94.

380

7988

191

3.9

7688

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23.

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4.0

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106

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3.6

7810

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376

114

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181

3.1

7312

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52.

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195

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107

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214

4.2

8411

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23.

882

126

135

195

3.6

7813

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63.

3402

119

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410

912

127

49.

411

012

013

226

28.

710

513

314

525

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124

47.

699

147

158

237

7.2

452

136

118

130

327

10.9

131

130

142

314

10.1

125

144

156

300

9.3

119

160

171

285

8.5

116

168

179

278

8.1

108

166

177

259

7.1

502

154

128

143

368

10.7

148

142

156

354

9.9

141

157

171

338

9.1

134

174

188

321

8.3

130

184

197

312

7.9

124

188

201

298

7.2

602

186

160

177

446

13.3

179

177

194

429

12.4

172

195

212

411

11.4

163

216

232

391

10.4

159

227

244

381

9.9

155

239

255

370

9.4

702

205

169

188

490

10.8

197

186

206

471

10.0

188

206

225

451

9.2

179

228

247

429

8.4

174

240

259

417

8.0

169

253

271

405

7.6

752

220

197

216

526

11.0

211

217

236

506

10.3

202

240

259

484

9.5

193

266

284

461

8.7

188

280

298

449

8.3

169

266

284

404

6.8

802

240

210

230

575

10.4

231

232

252

552

9.7

221

256

276

528

8.9

210

284

304

503

8.1

205

299

318

490

7.8

173

263

282

414

5.7

852

254

214

238

607

11.5

244

237

260

583

10.7

233

262

285

558

9.9

222

290

313

531

9.0

216

305

328

516

8.6

183

275

297

438

6.3

902

273

242

265

652

10.8

262

266

290

626

10.0

250

295

318

599

9.3

238

326

349

570

8.5

232

343

366

556

8.1

188

288

310

449

5.5

1002

303

259

288

725

10.8

291

286

314

696

10.0

278

316

344

666

9.2

265

350

378

634

8.4

258

369

396

617

8.0

214

323

350

513

5.7

1102

348

292

323

832

12.4

334

322

353

800

11.5

320

356

386

765

10.6

304

394

424

729

9.7

296

415

444

709

9.2

250

368

397

598

6.7

1202

378

327

360

905

12.8

363

360

393

869

11.9

348

398

431

832

11.0

331

441

473

793

10.0

323

464

496

772

9.5

253

377

408

605

6.1

1302

411

361

394

983

14.1

394

398

431

944

13.0

377

441

473

903

12.0

359

489

521

859

10.9

326

466

497

781

9.1

281

431

462

674

6.9

1352

438

398

429

1047

13.0

420

439

470

1004

12.0

401

486

516

960

11.1

377

530

560

903

9.9

299

422

451

715

6.4

267

413

442

640

5.2

1402

446

378

419

1067

13.6

428

417

457

1024

12.6

409

461

501

980

11.6

390

511

550

933

10.6

375

529

568

897

9.9

307

452

489

734

6.8

1502

463

391

432

1107

14.0

444

432

472

1062

12.9

424

478

517

1016

11.9

404

529

568

966

10.9

389

550

588

931

10.1

300

445

483

719

6.3

1702

508

429

476

1216

17.0

488

474

520

1168

15.8

467

524

570

1118

14.5

444

581

626

1064

13.2

431

608

652

1031

12.5

366

545

589

877

9.2

Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P T

ons

Coo

ling

cap

acity

C

OM

P k

WC

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or p

ower

inp

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t p

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and

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ater

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Sta

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, ref

riger

ant:

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or t

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erat

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rise:

10°

FE

vap

orat

or fl

uid

: chi

lled

wat

erFo

ulin

g fa

ctor

: 0.0

001

h ft

2°F

/Btu

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

28

Cooling capacities (Imperial)Unit with MCHX heat exchanger (standard)

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 5

0°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

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OL

CO

OL

CAP

CO

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UN

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LC

OO

LC

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PU

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CO

OL

CO

OL

CAP

CO

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CO

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ATo

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pm

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pm

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pm

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pm

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pm

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pm

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G

252

8974

8321

34.

885

8291

204

4.4

8190

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077

100

109

184

3.6

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93.

472

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119

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3.2

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110

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4.1

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03.

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127

194

3.5

7611

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1352

106

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025

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111

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25.

296

111

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229

4.7

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413

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64.

287

131

140

209

4.0

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513

419

13.

4402

127

102

114

305

11.2

122

112

124

293

10.5

117

124

136

281

9.7

112

137

148

268

8.9

109

143

155

261

8.4

106

151

162

253

8.0

452

146

122

134

349

12.1

140

135

147

335

11.2

134

149

161

320

10.3

127

165

177

305

9.4

124

174

186

297

9.0

112

163

175

268

7.5

502

164

134

148

393

11.9

158

147

162

377

11.0

151

163

177

361

10.2

143

181

195

343

9.3

139

191

204

333

8.8

123

176

189

295

7.0

602

199

166

183

478

14.9

192

183

200

459

13.8

183

202

219

439

12.7

175

224

240

418

11.6

170

235

252

407

11.1

157

231

247

377

9.6

702

219

175

195

524

12.0

210

193

213

504

11.2

201

214

233

482

10.3

191

236

255

458

9.4

186

249

267

446

8.9

173

245

263

413

7.8

752

235

205

224

563

12.3

226

226

245

541

11.4

216

249

268

517

10.5

205

276

294

492

9.6

198

285

303

474

9.0

164

242

260

392

6.3

802

256

218

239

614

11.6

246

241

261

590

10.7

235

266

286

564

9.9

224

294

314

537

9.1

213

300

319

512

8.3

186

272

291

446

6.4

852

271

223

247

649

12.8

260

246

269

623

11.9

248

272

295

595

11.0

236

301

323

566

10.0

228

313

335

546

9.4

191

273

294

458

6.8

902

291

252

275

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12.1

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11.2

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10.3

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10.3

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Per

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145

11.

29

Cooling capacities (Imperial)Unit with copper/aluminium heat exchanger (option 255)

Leg

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7.6

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7.7

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7.1

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332

501

8.1

172

268

290

412

5.7

902

271

249

273

648

10.7

260

275

299

622

9.9

248

304

327

595

9.1

236

337

360

566

8.3

223

340

363

534

7.5

171

269

291

410

4.6

1002

297

270

297

712

10.4

285

298

325

682

9.7

272

330

356

652

8.9

259

366

392

619

8.1

243

366

392

580

7.2

191

306

331

458

4.7

1102

344

304

335

824

12.1

331

336

367

791

11.3

316

372

402

756

10.4

300

411

441

719

9.4

290

429

459

695

8.9

238

367

395

569

6.1

1202

375

340

373

899

12.7

361

375

408

863

11.8

345

415

447

825

10.8

328

459

491

786

9.9

313

470

501

750

9.0

247

385

416

592

5.8

1302

408

375

408

977

13.9

392

414

447

937

12.9

374

458

491

896

11.8

348

492

524

834

10.3

322

479

510

769

8.9

272

434

465

652

6.5

1352

437

410

441

1046

13.0

419

453

484

1003

12.0

400

502

532

957

11.0

354

502

532

846

8.7

298

432

461

712

6.4

247

394

423

592

4.5

1402

440

390

430

1053

13.3

422

431

471

1010

12.3

404

476

516

966

11.3

384

528

567

919

10.3

363

534

572

868

9.3

285

436

474

683

6.0

1502

458

405

446

1097

13.7

439

448

488

1052

12.7

420

495

535

1004

11.7

399

549

588

954

10.6

369

540

579

884

9.2

296

459

496

708

6.1

1702

503

444

490

1204

16.7

483

490

536

1156

15.5

462

542

588

1105

14.2

439

601

646

1050

12.9

420

618

662

1004

11.9

350

540

583

838

8.4

Cooling capacities (Imperial)Unit with copper/aluminium heat exchanger (option 255)

Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P T

ons

Coo

ling

cap

acity

C

OM

P k

WC

omp

ress

or p

ower

inp

utU

NIT

kW

Uni

t p

ower

inp

ut (c

omp

ress

ors,

fans

and

con

trol

circ

uit)

CO

OL

gp

mE

vap

orat

or w

ater

flow

rat

eC

OO

L ft

WG

Eva

por

ator

pre

ssur

e d

rop

Ap

plic

atio

n d

ata:

Sta

ndar

d u

nits

, ref

riger

ant:

R13

4aE

vap

orat

or t

emp

erat

ure

rise:

10°

FE

vap

orat

or fl

uid

: chi

lled

wat

erFo

ulin

g fa

ctor

: 0.0

001

h ft

2°F

/Btu

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 4

5°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

ATo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

G

252

8174

8319

44.

178

8291

186

3.8

7491

100

177

3.5

7010

010

916

83.

168

105

114

162

2.9

6611

011

915

72.

8302

8981

9021

24.

285

8999

203

3.8

8199

108

193

3.5

7611

011

918

23.

174

116

125

176

3.0

7112

213

117

02.

8352

9785

9523

34.

993

9410

422

24.

588

105

114

210

4.1

8311

612

619

83.

780

123

132

192

3.5

7813

013

918

63.

3402

116

104

116

276

9.6

111

115

127

266

8.9

106

127

139

254

8.2

101

140

152

242

7.5

9814

715

923

57.

196

155

166

229

6.8

452

134

120

132

320

10.5

128

132

144

307

9.8

123

146

158

294

9.0

117

162

174

279

8.2

114

171

183

272

7.8

106

170

181

253

6.9

502

149

130

144

357

10.1

143

143

158

343

9.4

137

159

173

327

8.6

130

176

190

311

7.9

126

186

200

302

7.5

118

185

199

282

6.6

602

183

161

178

439

12.9

176

178

195

422

12.0

169

197

214

403

11.1

160

218

235

384

10.1

156

230

246

373

9.6

141

220

236

338

8.0

702

200

173

193

478

10.3

192

192

211

459

9.6

183

212

231

439

8.8

174

235

253

417

8.0

169

247

266

405

7.6

154

238

256

369

6.4

752

216

198

218

516

10.7

207

218

238

496

9.9

198

241

261

475

9.2

189

267

287

452

8.4

184

281

300

441

8.0

168

272

291

401

6.7

802

235

211

232

562

10.0

225

233

254

539

9.3

215

257

278

515

8.5

205

285

306

490

7.8

197

295

316

471

7.2

162

253

273

388

5.1

852

247

221

244

591

11.0

237

244

267

567

10.2

227

270

292

542

9.4

215

299

321

515

8.6

208

311

333

497

8.0

172

272

293

411

5.7

902

266

247

271

637

10.4

256

272

296

612

9.7

244

301

325

585

8.9

233

334

356

556

8.1

222

342

364

531

7.5

168

266

289

402

4.5

1002

293

267

294

700

10.2

281

295

322

671

9.4

268

327

353

641

8.7

255

362

388

609

7.9

242

370

396

580

7.2

188

304

329

449

4.5

1102

339

302

332

810

11.8

325

333

364

778

11.0

311

368

398

744

10.1

296

408

437

707

9.2

288

429

459

688

8.7

233

364

393

558

5.9

1202

369

336

369

884

12.3

355

371

404

849

11.4

339

411

443

812

10.5

323

455

486

773

9.6

310

470

501

742

8.9

243

382

413

580

5.6

1302

402

371

404

961

13.5

385

410

443

922

12.5

368

454

487

881

11.5

345

491

523

825

10.2

318

479

510

761

8.7

267

431

462

640

6.3

1352

430

406

437

1029

12.6

412

448

479

986

11.7

393

497

527

941

10.7

354

509

539

847

8.8

292

428

457

698

6.1

249

402

431

596

4.6

1402

433

386

427

1036

13.0

415

427

467

994

12.0

397

472

512

950

11.0

378

523

562

904

10.1

359

533

571

858

9.1

279

433

471

669

5.8

1502

451

401

442

1079

13.4

432

444

483

1035

12.4

413

491

530

988

11.4

393

544

583

939

10.3

369

547

585

883

9.2

290

455

492

693

5.9

1702

495

440

486

1184

16.2

475

486

532

1137

15.0

454

537

583

1087

13.8

432

596

641

1033

12.6

413

613

657

988

11.6

347

541

585

829

8.3

31

Hig

h am

bie

nt t

emp

erat

ure

unit

- L

WT

= 5

0°F

Air

tem

per

atur

e, (°

F)

8595

105

115

120

125

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

CAP

CO

MP

UN

ITC

OO

LC

OO

LC

APC

OM

PU

NIT

CO

OL

CO

OL

30X

ATo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

GTo

nkW

kWg

pm

ft W

G

252

8877

8621

24.

785

8594

203

4.3

8194

103

193

4.0

7610

411

318

23.

674

109

118

177

3.4

7111

512

317

13.

2302

9784

9423

14.

892

9310

322

14.

487

103

112

210

4.0

8311

412

319

83.

680

120

129

192

3.4

7712

713

618

53.

2352

106

8999

253

5.7

101

9910

824

25.

295

109

119

229

4.7

9012

113

121

64.

287

128

137

209

4.0

8413

514

420

23.

8402

125

109

121

301

11.0

121

120

132

289

10.2

115

132

144

276

9.4

110

146

157

263

8.6

107

153

165

256

8.1

9915

216

323

77.

1452

145

125

137

347

12.0

139

138

150

334

11.1

133

153

165

319

10.2

127

169

181

303

9.4

123

178

190

295

8.9

110

166

178

263

7.2

502

162

136

150

388

11.6

155

150

164

372

10.8

148

166

180

355

9.9

141

184

198

338

9.0

137

194

208

329

8.6

121

178

192

290

6.8

602

199

169

186

478

14.9

192

187

204

459

13.8

183

206

223

439

12.7

174

228

244

417

11.6

169

240

256

406

11.0

145

212

228

348

8.3

702

217

182

201

520

11.8

208

201

220

500

11.0

199

222

241

477

10.1

189

246

264

453

9.2

184

259

277

441

8.7

156

224

242

374

6.5

752

235

207

227

562

12.3

225

228

248

540

11.4

215

252

272

516

10.5

205

278

298

492

9.6

200

293

313

479

9.1

158

235

254

378

5.9

802

255

221

243

611

11.5

244

244

265

586

10.6

233

269

290

559

9.7

222

298

319

531

8.9

206

295

315

494

7.8

172

251

271

412

5.6

852

268

232

255

642

12.6

257

256

279

616

11.7

246

283

305

588

10.7

233

313

335

559

9.8

217

310

332

520

8.6

182

271

292

436

6.2

902

289

259

283

693

11.9

277

286

309

664

11.0

265

316

339

634

10.1

252

349

372

603

9.2

225

329

351

540

7.6

186

277

300

445

5.3

1002

317

281

308

761

11.6

304

310

337

729

10.7

290

343

369

695

9.9

275

379

405

660

9.0

232

331

357

556

6.6

207

316

341

495

5.3

1102

367

317

347

880

13.5

352

349

380

844

12.5

337

385

416

807

11.5

320

427

456

767

10.5

298

422

451

714

9.2

246

361

390

590

6.4

1202

401

353

386

960

14.1

384

389

422

921

13.1

367

430

462

880

12.0

349

476

508

837

11.0

315

450

481

755

9.0

264

392

422

632

6.5

1302

436

390

423

1044

15.5

418

431

463

1001

14.3

399

476

509

956

13.1

357

477

509

855

10.7

331

473

504

793

9.3

284

431

462

680

7.0

1352

466

427

458

1118

14.5

447

472

503

1070

13.3

426

522

552

1020

12.2

334

429

459

801

7.8

302

418

448

724

6.5

250

377

406

598

4.5

1402

470

406

446

1126

14.9

450

448

488

1079

13.8

430

495

534

1031

12.6

406

543

582

974

11.4

360

499

537

863

9.1

303

443

480

727

6.6

1502

489

422

462

1172

15.3

468

465

505

1123

14.1

447

514

554

1071

13.0

424

570

608

1017

11.8

352

484

522

843

8.3

308

453

491

737

6.5

1702

537

462

508

1286

18.6

515

509

555

1234

17.2

492

563

608

1179

15.8

467

624

668

1120

14.4

420

587

631

1006

11.7

361

529

573

864

8.8

Cooling capacities (Imperial)Unit with copper/aluminium heat exchanger (option 255)

Leg

end

LWT

Leav

ing

wat

er t

emp

erat

ure

CA

P T

ons

Coo

ling

cap

acity

C

OM

P k

WC

omp

ress

or p

ower

inp

utU

NIT

kW

Uni

t p

ower

inp

ut (c

omp

ress

ors,

fans

and

con

trol

circ

uit)

CO

OL

gp

mE

vap

orat

or w

ater

flow

rat

eC

OO

L ft

WG

Eva

por

ator

pre

ssur

e d

rop

Ap

plic

atio

n d

ata:

Sta

ndar

d u

nits

, ref

riger

ant:

R13

4aE

vap

orat

or t

emp

erat

ure

rise:

10°

FE

vap

orat

or fl

uid

: chi

lled

wat

erFo

ulin

g fa

ctor

: 0.0

001

h ft

2°F

/Btu

Per

form

ance

s in

acc

ord

ance

with

EN

145

11.

32

Guide SpecificationsEquipment ■ Factory assembled single-piece air-cooled liquid chiller.

Includes two or three independent refrigerant circuits, powerand control system. Each circuit equipped with fullyaccessible twin-screw compressors, an electronic expansionvalve and a charge of ozone friendly R134a refrigerant.

Quality assurance■ The chiller shall be designed, manufactured and tested in a

facility with a quality assurance system certified ISO 9001and an environment management system certified ISO14001.

■ Thermodynamic performances shall be in accordanceEN14511 and sound levels in accordance with ISO 9614standards and Eurovent standard.

■ All units shall undergo a complete run test in the factorybefore shipment.

■ The chiller shall be CE marked and shall comply with therequirements of the following European directives:- Machinery directive 98/37/EC modified,- Low-voltage directive 73/23/EEC modified,- Electromagnetic compatibility directive 89/336/EEC

modified, and with the applicable recommendations ofEuropean standards

- European Pressure Equipment Directive 97/23/EC,- Machine safety, electrical equipment in machines, general

regulations: EN 60204-1,- Radiated electromagnetic emissions: EN50081-1,- Conducted electromagnetic emissions: EN 50081-2,- Electromagnetic immunity: EN 50082.

Performance■ The unit shall be able to start up with an evaporator entering

fluid temperature of up to 45°C.■ The unit shall be able to operate as standard at outside air

temperatures from -10°C to 55°C and an evaporator leavingfluid setpoint between 3.3°C and 15°C.

Compressors and motorsCompressors shall be semi-hermetic twin-screw type. Allmain components shall be fully accessible. Compressors shallbe mounted on sliding rails and equipped with a dischargegas shut-off valve for ease of service.

Electric motor■ Two-pole motor cooled by suction gas with full-stream 120

micron efficiency suction gas filter.■ The motor shall be protected by an electronic board capable

to protect against the following faults:- Motor overheat by means of internal temperature sensors- Motor overload according to the current drawn- Loss of phase- Phase reversal- Voltage dips

Lubrication■ External oil separator for each compressor with no moving

parts, designed for 2100 kPa working pressure.■ Oil separator shall include a temperature actuated heater and

an oil level safety switch.■ Refrigerant system differential pressure shall provide oil

return through a replaceable 5 micron oil filter external to thecompressor. Oil filter shall be equipped with service shut-offvalve for easy replacement.

Capacity control■ Compressors shall be equipped with a capacity control valve

capable of adjusting the chiller capacity from 100 to 15%load.

■ Compressors shall start at minimum load.■ Compressor capacity shall be microprocessor controlled to

maintain the required chilled water temperature, and protectthe motor against overload or the refrigerant circuit againsthigh-pressure cut-out.

Low vibration and sound level■ Compressor rails shall be mounted on rubber in shear anti-

vibration blocks.■ Compressor shall have a discharge gas muffler to dampen gas

pulsation.■ Compressor and oil separator shall have an acoustic

enclosure with large access doors easily removable with 1/4turn screws.

Evaporator■ The unit shall be equipped with shell-and-tube flooded

evaporator. Independent refrigerant circuits shall be providedper compressor.

■ The maximum refrigerant-side operating pressure shall be2000 kPa and the maximum water-side pressure shall be1000 kPa.

■ The evaporator shall be tested with pressurised dry air. Water or oil pressures are not acceptable.

■ The weld-free copper tubes shall be internally finned andexpanded into the tube sheets.

■ The evaporator shall be mounted on support feet withthermal bridge rupture.

■ Shell shall be integrally insulated with 19-mm thickpolyurethane foam mechanically protected by an aluminiumcladding.

■ The chiller shall have only one inlet/outlet Victaulic waterconnection to ensure mechanical decoupling between the unitand the hydronic installation. The evaporator shall beequipped with a water drain and a purge plug.

Condenser■ The heat exchanger will consist of multiple transverse

V-shaped coils to provide self protection. Each V will have anangle above 50° to ensure optimum air distribution.

■ Coils with integrated sub-cooling shall be entirely made ofaluminium to limit galvanic corrosion and will offer acorrosion resistance compatible with coastal or urbanenvironments. Coils shall have a thickness of 25 mm togenerate low air pressure drop and offer reduced sensitivity toclogging. Coils shall be easily cleanable using a high pressurecleaner.

■ The condenser coils shall be leak-tested by helium gasdetection.

Fans■ The low-noise direct-drive fans shall be equipped with an

impeller with nine aerodynamic blades and a rotating shroudto ensure optimal leak-tightness between the blades and thefan mouth. The impeller shall be one-piece and made of acorrosion-resistant composite material, and statically anddynamically balanced. The air shall be discharged verticallyupwards.

■ The fans shall be protected by polyethylene-coated steel wiregrilles.

■ The three-phase electric motors shall have class F insulation,IP 55 protection with a minimum efficiency of 80%. Theyshall have individual overload protection via a circuit breaker.

33

Refrigerant circuit components■ Chiller shall have an independent circuit for each compressor

to provide maximum redundancy.■ Each refrigerant circuit shall include: discharge gas shut-off

valve, liquid shut-off valve, electronic expansion valvecontrolled by a stepper motor, liquid sight glass, filter drierwith removable cartridge, refrigerant economiser controlledby an auxiliary electronic expansion valve and completecharge of both refrigerant and oil.

■ Instrumentation and safety devices shall include: high-pressure safety switch, low-pressure safety relief valve, lowand high-pressure transducers accessible without draining therefrigerant charge.

■ The refrigerant circuit shall be factory leak-tested withpressurised air and helium gas detection at 2500 kPa.

Power and electrical components

Power requirements■ The unit shall operate at 400 volts, 3 phases, 50 hertz (400 V

± 10%) without neutral.■ Main disconnect switch with lockable handle for each

compressor shall be provided as standard.

Power and control cabinets ■ Powder-painted steel cabinet with hinged and gasket sealed

doors. Power box doors shall be interlocked with maindisconnect switch handle so that door opening is not possiblewithout disconnecting power.

■ Power cabinet includes: compressor short-circuit andoverload protection, fan and control circuit breakers.

■ Separate control cabinet for safe and easy access to controldisplay.

Compressor starter■ Motor starter shall be star-delta type for minimum inrush

current, star-delta transition shall be managed electronicallywithout electromechanical relays.

■ Control transformerThe control circuit voltage shall be 24 V maximum, suppliedby a factory-installed transformer.

Unit control

General■ The chiller shall be equipped with microprocessor control,

regulating all unit operating and safety parameters in order tooptimise energy efficiency and minimise the risk of therefrigerant circuit shutting down due to a fault.

Main control features: ■ Entering or leaving water temperature control by PID loop

with equalisation of the compressor operating times andnumber of compressor start-ups.

■ Protection against excessive compressor cycling byautoadaptive control algorithm acting on the leaving watersetpoint deadband.

■ Optimisation of the condensing pressure with a floatingsetpoint based on the outside temperature and the thermalload in order to limit power consumption.

■ Dynamic evaporator superheat control via the electronicexpansion valve (EXV) in order to maximise the use of theevaporator capacity, whilst protecting the compressorsagainst migration of liquid refrigerant.

■ Control of one or two water pumps (standby pump) with runtime equalisation and automatic changeover to the standbypump in case a fault occurs.

■ Periodic water pump start-up when the unit is shut down inorder to prolong the operating life of the mechanical pumpseal.

■ Automatic compressor unloading when an abnormally highcondensing pressure is detected to prevent the shut-down ofthe refrigerant circuit due to a high-pressure fault.

■ Master/slave control of two chillers operating in series or inparallel with run time equalisation.

Display and keypad■ 320 x 24 pixels touch screen display for easy access to all

operating parameters. Icon driven menu for intuitivenavigation and display of full test message in English or otherlanguage.- Display data: Water entering/leaving temperatures, outside

air temperature, compressor suction/discharge pressuresand temperatures, chilled water setpoint, compressoroperating times and the number of start-ups. Fan operatingtime, percent loading, compressor current.

- Quick test function to verify correct operation ofcompressor, fan, electronic expansion valve, probes andsensors for easy and fast commissioning.

- Chiller diagnostics with last 50 alarm history for quicktrouble shooting.

Automatic operation■ The chiller shall be equipped with a programming clock,

permitting:- On/off control- Changeover to the second setpoint (unoccupied mode)- Capacity or current draw limitation

■ The control shall ensure the following operating modes:- On/off mode based on the outside temperature- Setpoint reset based on the outside air temperature or the

return water temperature

Remote control■ The chiller shall include dry contacts permitting:

- On/off control- Capacity or current draw limitation (one stage)- Changeover to the second setpoint (unoccupied mode)- Integration of customer safety device

■ The chiller shall include output contacts permitting:- Signalling that the unit is ready to start - Signalling the occurrence of a minor incident (alert relay )- Signalling the occurrence of a major incident (alarm relay)- Water pump on/off control (single or dual pump with

automatic changeover)■ The chiller shall be equipped with an RS485 serial port for

remote control via a communication bus.

Chassis/structure■ Frame shall be made of U steel beam with hot dip

galvanization or electrophoresis treatment completed withpaint.

■ Panels and electrical box shall be made of galvanised sheetsteel with oven-baked polyester powder-paint finish in lightgrey colour (RAL 7035).

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Options:

Hydronic module (if required)■ The hydronic module shall be integrated in the chiller chassis

without increasing its dimensions and include the followingelements: removable screen filter, membrane type expansiontank, centrifugal single-cell water pump with three-phasemotor equipped with internal over-temperature protection,electronic water flow switch without paddle, safety reliefvalve calibrated to 4 bar, long-stroke flow control valve. Apressure gauge and a valve set permit differential pressuremeasurements: water pump, evaporator pressure loss, filterpressure loss.

■ To limit vibration and noise transmission the water pumpshall be isolated from the chiller structure.

■ The water piping shall be protected against corrosion andequipped with drain and purge plugs. The customerconnections shall be Victaulic connections. The piping andthe water pump shall be fully insulated by polyurethanefoam, and aluminium cladding to prevent condensation.Emergency frost protection by starting up of the water pumpin case of a risk of frost formation.

■ A choice of four pump types shall be available:- Single high-pressure pump- Dual high-pressure pump- Single low-pressure pump- Dual low-pressure pump

Order No. 13451-20, 04.2007. Supersedes order 13451-20, 06.2006. Manufactured by: Carrier SCS, Montluel, France.Manufacturer reserves the right to change any product specifications without notice. Printed on Totally Chlorine Free Paper.The cover photo is solely for illustration purposes and not contractually binding. Printed in the Netherlands.

This document describes the characteristics for the following products:30XA + option 119 + option 20A (units with MCHX heat exchangers)30XA + option 255 + option 119 + option 20A (units with copper/aluminium heat exchangers).