30HZ/HZV 043-280 Water-Cooled/Condenserless Liquid Chillers

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4.4 - Electrical data (R22)30HZ/HZV 043 052 065 091 101 111 121 141 161 195 225 250 280Power wiringNominal power supply V-ph-Hz 400-3-50System voltage range V 360-440Control circuit power supplyThe control circuit is supplied via a factory-installed transformer.Nominal operating power input*kW30HZ 35.8 45.5 64 64 72 80 85 104 122 154 189 224 25330HZV 38.1 48 65 69 76 85 93 111 133 164 198 233 264Nominal operating current*A30HZ 59.4 75.5 106 106 119 133 141 172 202 255 313 372 41830HZV 63.2 79.6 108 114 126 141 154 184 221 272 328 387 438Maximum operating power input**kW30HZ – circuit A and B 46 55 79 83 91 101 111 134 158 198 237 - -30HZ – circuit A - - - - - - - - - - - 158 15830HZ – circuit B - - - - - - - - - - - 119 15830HZV – circuit A and B 54 65 90 98 107 119 130 155 180 225 270 - -30HZV – circuit A - - - - - - - - - - - 180 18030HZV – circuit B - - - - - - - - - - - 135 180Maximum operating current (Un-10%)***A30HZ – circuit A and B 88 107 153 161 177 195 214 260 305 382 458 - -30HZ – circuit A - - - - - - - - - - - 305 30530HZ – circuit B - - - - - - - - - - - 229 30530HZV – circuit A and B 101 123 170 185 203 224 246 293 340 425 509 - -30HZV – circuit A - - - - - - - - - - - 340 34030HZV – circuit B - - - - - - - - - - - 255 340Maximum operating current (Un)***A30HZ – circuit A and B 79 96 137 145 159 176 193 234 275 343 412 - -30HZ – circuit A - - - - - - - - - - - 275 27530HZ – circuit B - - - - - - - - - - - 206 27530HZV circuit A and B 91 111 153 166 182 202 221 264 306 382 458 - -30HZV circuit A - - - - - - - - - - - 306 30630HZV circuit B - - - - - - - - - - - 229 306Maximum unit starting current (Un)†A30HZ – circuit A and B 183 199 274 246 229 277 293 333 408 475 542 - -30HZ – circuit A - - - - - - - - - - - 408 40830HZ – circuit B - - - - - - - - - - - 341 40830HZV – circuit A and B 188 207 283 263 251 299 318 360 436 513 589 - -30HZV – circuit A - - - - - - - - - - - 436 43630HZV – circuit B - - - - - - - - - - - 360 43630HZ Ratio max. starting current/max. current, circ. A A 2.3 2.07 1.99 1.7 1.44 1.57 1.52 1.43 1.49 1.38 1.32 1.49 1.4930HZ Ratio max. starting current/max. current, circ. B A - - - - - - - - - - - 1.66 1.4930HZV Ratio max. starting current/max. current, circ. A A 2.06 1.87 1.85 1.58 1.37 1.48 1.44 1.37 1.43 1.34 1.28 1.43 1.4330HZV Ratio max. starting current/max. current, circ. B A - - - - - - - - - - - 1.57 1.43Holding current for three-phase short circuitskA30HZ – circuit A and B 15 15 15 15 20 20 20 20 20 25 25 - -30HZ – circuit A - - - - - - - - - - - 25 2530HZ – circuit B - - - - - - - - - - - 25 2530HZV – circuit A and B 15 15 15 15 20 20 20 20 20 25 25 - -30HZV – circuit A - - - - - - - - - - - 25 2530HZV – circuit B - - - - - - - - - - - 25 25Customer unit standby power for evaporator andcondenser pump connections‡ACircuit A 6 8 10 10 10 10 10 12 15 24 32 25 32Circuit B - - - - - - - - - - - 20 20* Standard Eurovent conditions: Evaporator entering/leaving water temperature 12°C/7°C, condenser entering/leaving water temperature 30°C/35°C.Nominal operating power input: unit power input (compressors, control) plus the capacity corresponding to the evaporator and condenser pressure drop (flow x drop/0.3).** Power input, compressors, at unit operating limits (saturated evaporating temperature (dew point) = 12°C, saturated condensing temperature (dew point) = 53°C(30HZ)/68°C (30HZV), and a nominal voltage of 400 V (data given on the unit name plate).*** Maximum unit operating current at maximum unit power input.† Maximum instantaneous starting current (maximum operating current of the smallest compressor(s) + locked rotor current or reduced starting current of the largestcompressor).‡ Current and power inputs not included in the values above.12
4.5 - Power supplyThe power supply must conform to the specification on thechiller nameplate. The supply voltage must be within the rangespecified in the electrical data table. For connections refer tothe wiring diagrams.WARNING: Operation of the chiller with an improper supplyvoltage or excessive phase imbalance constitutes abuse whichwill invalidate the Carrier warranty. If the phase imbalanceexceeds 2% for voltage, or 10% for current, contact yourlocal electricity supply at once and ensure that the chiller isnot switched on until corrective measures have been taken.4.6 - Voltage phase imbalance (%)100 x max. deviation from average voltageAverage voltageExample:On a 400 V - 3 ph - 50 Hz supply, the individual phase voltageswere measured to be:AB = 406 V ; BC = 399; AC = 394 VAverage voltage = (406 + 399 + 394)/3 = 1199/3= 399.7 say 400 VCalculate the maximum deviation from the 400 V average:(AB) = 406 - 400 = 6(BC) = 400 - 399 = 1(CA) = 400 - 394 = 6The maximum deviation from the average is 6 V. The greatestpercentage deviation is:100 x 6/400 = 1.5 %MotorThis is less than the permissible 2% and is therefore acceptable.Notes for electrical data:• 30HZ/HZV 043 to 225 units have a single power connection point; 30HZ/HZV250 to 280 units have two connection points.• The control box includes the following standard features:- Starter and motor protection devices for each compressor- Control devices• Field connections:All connections to the system and the electrical installations must be in fullaccordance with all applicable codes.• The Carrier 30HZ/HZV chillers are designed and built to ensure conformancewith local codes. The recommendations of European standard EN 60204-1(corresponds to IEC 60204-1) (machine safety - electrical machinecomponents - part 1: general regulations) are specifically taken into account,when designing the electrical equipment.IMPORTANT:• Conformance with EN 60204-1 is the best means of ensuring compliance withthe Machines Directive and § 1.5.1. Generally the recommendations of IEC60364 are accepted as compliance with the requirements of the installationdirectives.• Annex B of EN 60204-1 describes the electrical characteristics used for theoperation of the machines.1. The operating environment for the 30HZ/HZV chillers is specified below:a. Environment* - Environment as classified in IEC 60364 § 3:- ambient temperature range: +5°C to +40°C, class AA4- humidity range (non-condensing)*:50% relative humidity at 40°C90% relative humidity at 20°C- altitude: £ 2000 m- indoor installation*- presence of water: class AD2* (possibility of water droplets)- presence of hard solids, class AE2* (no significant dust present)- presence of corrosive and polluting substances, class AF1 (negligible)- vibration and shock, class AG2, AH2b. Competence of personnel, class BA4* (trained personnel - IEC 60364)2. Power supply frequency variation: ± 2 Hz.3. The neutral (N) conductor must not be connected directly to the unit (ifnecessary use a transformer).4. Over-current protection of the power supply conductors is not provided withthe unit.5. The factory-installed disconnect switch(es)/circuit breaker(s) is (are) of a typesuitable for power interruption in accordance with EN 60947.6. The units are designed for connection to TN networks (IEC 60364). For ITnetworks the earth connection must not be at the network earth. Provide alocal earth, consult competent local organisations to complete the electricalinstallation.NOTE: If particular aspects of an actual installation do not conform to theconditions described above, or if there are other conditions which should beconsidered, always contact your local Carrier representative.* The protection level required to conform to this class is IP21B (according toreference document IEC 60529). All 30HZ/HZV units are protected to IP23Cand fulfil this protection condition.13
Page 1 and 2: 30HZ/HZV 043-280Water-Cooled/Conden
Page 3 and 4: CONTENTS (cont’d)7 - MAJOR SYSTEM
Page 5 and 6: Never work on any of the electrical
Page 7 and 8: CAUTION: Only use slings at the des
Page 9 and 10: 3.3 - 30HZ/HZV 250-280AB12275085033
Page 11: 4.2 - Electrical data (R407C) - (co
Page 15 and 16: 5 - APPLICATION DATA5.1 - Unit oper
Page 17 and 18: 5.7 - Condenser water flow rates30H
Page 19 and 20: 6.2 - Water connectionsPotentiomete
Page 21 and 22: 6.6.3 - Use of pipe sizing diagrams
Page 23 and 24: Discharge piping200100Equivalent le
Page 25 and 26: 7.3.2 - EvaporatorThe evaporator is
Page 27 and 28: 9 - MAINTENANCEDuring the unit oper
Page 29 and 30: Bar Saturated bubble Saturated dew
Page 31 and 32: 10 - START-UP CHECKLIST FOR 30HZ/HZ
Page 33 and 34: Perform TEST function (indicate pos

30HZ/HZV 043-280 Water-Cooled/Condenserless Liquid Chillers

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