30HXC 080-375 30GX 082-358 Screw Compressor Water-Cooled Liquid Chillers and Air-Cooled Liquid Chillers 30HXC Nominal cooling capacity 290-1325 kW 30GX Nominal cooling capacity 285-1205 kW 50 Hz GLOBAL CHILLER Installation, operation and maintenance instructions
The cover photograph is for illustrative purposes only and is not part of any offer for sale or contract.
List of contents 1- INTRODUCTION .................................................................... 4 2- SAFETY CONSIDERATIONS ............................................... 4 3- DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION ..................................................... 3.1 - 30HXC 080-190 .......................................................................... 3.2 - 30HXC 200-375 .......................................................................... 3.3 - 30GX 082-182 ..................
1 - INTRODUCTION Prior to initial start-up of the 30HXC and 30GX unit, those involved in the start-up, operation, and maintenance should be thoroughly familiar with these instructions and other necessary job data. This book provides an overview so that you may become familiar with the control system before performing start-up procedures. Procedures in this manual are arranged in the sequence required for proper machine start-up and operation.
3 - DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION 600 3.1 - 30HXC 080-190 30HXC080 30HXC090 30HXC100 30HXC110 C 3 1 2 E A 500 D 3 1 Evaporator 2 Condenser 3 Clearances required for operation and maintenance 4 Clearances required for heat exchanger tube removal. Clearances D and E can be either on the left or on the right hand side.
3 - DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.) 600 3.2 - 30HXC 200-375 C 3 D 1 Evaporator 2 Condenser 3 Clearances required for operation and maintenance E A 500 4 3 Clearances required for heat exchanger tube removal. Clearances D and E can be either on the left or on the right hand side.
3 - DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.) 3.3 - 30GX 082-182 Clearances required for operation and maintenance 2 Clearances required for evaporator tube removal. Clearances can be either on the left or on the right hand side.
3- DIMENSIONS, CLEARANCES, WEIGHT DISTRIBUTION (CONT.) 3.4 - 30GX 207-358 Clearances required for operation and maintenance 2 Clearances required for evaporator tube removal. Clearances can be either on the left or on the right hand side.
4 - PHYSICAL DATA 30HXC 30HXC 080 090 100 110 120 130 140 155 175 190 200 230 260 285 310 345 375 292 321 352 389 426 464 514 550 607 663 716 822 918 996 1119 1222 1326 kg 2447 2462 2504 2650 2846 2861 2956 2971 3283 3438 4090 4705 4815 4985 5760 5870 6105 kg HFC-134a 39/36 39/36 37/32 38/38 57/55 59/50 56/50 59/52 58/61 60/70 110/58 118/63 120/75 120/75 108/110 110/110 110/120 l Polyolester oil CARRIER SPEC: PP 47-32 15/15 15/15 15/15 15/15
Compressors Reference Size I nom. MHA LRA LRA (Y) LRA (S) 1 cp. LRA (S) 2 cp. 06NW2146S7N 06NW2174S7N 06NW2209S7N 06NW2250S7N 06NW2300S5N 06NW2300S5E 39 46 56 66 80 80+ 48 58 71 87 104 111 69 83 101 120 144 165 344 423 506 605 715 856 109 134 160 191 226 270 125 154 260 330 370 385 350 400 420 460 Legend: 06NW N E INOM MHA LRA LRA (Y) LRA (S) 1 cp. LRA (S) 2 cp.
6 - ELECTRICAL DATA FOR UNITS WITH HIGH CONDENSING TEMPERATURES 30HXC 150 and 150A Options 30HXC Power circuit Nominal power supply (Un) Voltage range 080 090 100 110 120 130 140 155 175 190 200 230 260 285 310 345 375 V-ph-Hz 400-3-50 V 360-440 Control circuit supply The control circuit is supplied via the factory-installed transformer Max.
7 - PHYSICAL DATA 30GX 30GX 082 092 102 112 122 132 152 162 182 207 227 247 267 298 328 358 Net cooling capacity* kW 285 309 332 388 417 450 505 536 602 687 744 810 910 1003 1103 1207 Operating weight kg 3116 3157 3172 3515 3531 3633 3920 3936 4853 5540 5570 6134 6365 7354 7918 8124 kg HFC-134a 55/55 58/50 54/53 55/53 60/57 63/60 75/69 75/75 80/80 130/85 130/85 155/98 170/104 162/150 162/165 175/175 l Polyolester oil CARRIER SPEC: PP 47-32 20/
Compressors Reference Size I nom. MHA LRA LRA (Y) LRA (S) 1 cp. LRA (S) 2 cp. 06NA2146S7N 06NA2174S7N 06NA2209S7N 06NA2250S7N 06NA2300S5N 06NA2300S5E 39 46 56 66 80 80+ 70 90 113 130 156 174 95 120 145 175 210 240 605 715 856 960 1226 1265 191 226 270 303 387 400 220 260 330 380 445 460 420 500 550 600 Legend: 06NA N E INOM MHA LRA LRA (Y) LRA (S) 1 cp. LRA (S) 2 cp.
9.4 - Variable flow evaporator 9.6 - Cooler flow rate (l/s) Variable evaporator flow can be used in standard 30HXC and 30GX chillers. The chillers maintain a constant leaving water temperature under all flow conditions. For this to happen, the minimum flow rate must be higher than the minimum flow given in the table of permissible flow rates and must not vary by more than 10% per minute. If the flow rate changes more rapidly, the system should contain a minimum of 6.5 liters of water per kW instead of 3.
Pressure drop, kPa 9.
Pressure drop, kPa 9.
9.10 - Flow controllers 10 - INSTALLATION 9.10.1 - Cooler flow switch and chilled water pump interlock 10.1 - Check equipment received IMPORTANT It is mandatory to install cooler flow switch and also to connect chilled water pump interlock on 30HXC and 30GX. Failure to this instruction will void Carrier guarantee. The cooler flow switch controller is factory supplied and wired on 30HXC and 30GX units. Follow the manufacturer instruction for installation.
11 - LIFTING INSTRUCTIONS 11.1 - 30HXC 080-190 This diagram is shown for information only. Refer to “certified drawings”. 2000 mm mini. 1200 mm mini. 1 DE P O ET I N Z E RO O NE L ZO Z R-134a Y X X mm Y mm Z mm 30HXC080 30HXC090 30HXC100 1345 402 903 30HXC110 1368 397 935 30HXC120 30HXC130 30HXC140 30HXC155 1731 392 879 30HXC175 1703 386 947 30HXC190 1705 398 955 1 39 Ø 13.
11 - LIFTING INSTRUCTIONS (CONT.) 11.2 - 30HXC 200-285 This diagram is shown for information only. Refer to “certified drawings”. 2800 mm min. 1035 1200 mm min. 425 2075 36 39 Ø 13.5 11.3 - 30HXC 310-375 3500 mm min. Z 1200 mm min. Y X mm Y mm Z mm 2195 2195 2205 425 425 435 1085 1085 1025 36 Ø 13.5 39 30HXC310 30HXC345 30HXC375 X NOTE When all lifting and positioning operations are finished, it is recommended to touch up all surfaces where paint has been removed on lifting lugs.
11 - LIFTING INSTRUCTIONS (CONT.) 11.4 - 30GX 082-162 This diagram is shown for information only. Refer to “certified drawings”. 2000 mm min. 60 MAX 2.5 T 60@27MINI 1 2300 mm min. 38 2 (P1 a P4) Z M P1 a P4 Y X X mm Y mm Z mm PTkg 34 55 30GX082 30GX092 30GX102 30GX112 30GX122 30GX132 30GX152 30GX162 1440 1440 1440 1650 1650 1650 2155 2155 1460 1460 1460 1460 1460 1460 1430 1430 900 900 900 900 900 900 900 900 3115 3156 3170 3574 3527 3634 3938 3954 11.
11 - LIFTING INSTRUCTIONS (CONT.) 11.6 - 30GX 207-267 This diagram is shown for information only. Refer to “certified drawings”.. 2000 mm min. 60 MAX 2.5 T 1 60 MINI 2300 mm min. 38 2 (P1 a P6) Z M X Y P1 a P6 X mm Y mm Z mm PTkg 34 55 30GX207 2870 1440 890 5536 30GX227 2870 1440 890 5572 30GX247 3320 1430 927 6131 30GX267 3300 1420 886 6363 2800 mm min. 11.7 - 30GX 298-358 60 2.5 T 60 mm mini. 2300 mm min.
11.8 - Piping connections Refer to the certified dimensional drawings for the sizes and positions of all water inlet and outlet connections. The water pipes must not transmit any radial or axial force to the heat exchangers or any vibration to the pipework or building. The water supply must be analysed and appropriate filtering, treatment, control devices, isolation and bleed valves and circuits built in, as necessary. Consult either a water treatment specialist or appropriate literature on the subject. 11.
12 - ELECTRICAL CHARACTERISTICS • • • • • The 30HXC 080-190 and 30GX 082-182 have only one power disconnect/isolating switch. The 30HXC 200-375 and 30GX 207-358 have two power disconnect/isolating switches. The control box incorporates the following as standard: - Starters and motor protection devices for each compressor and the fans - Control components Connections on site: All mains connections and electrical installation must be carried out in accordance with the directives applicable to the site.
13 - RECOMMENDED WIRE SECTIONS Wire sizing is the responsibility of the installer, and depends on the characteristics and regulations applicable to each installation site. The following is only to be used as a guideline, and does not make Carrier in any way liable. After wire sizing has been completed, using the certified dimensional drawing, the instal-ler must ensure easy connection and define any modifications necessary on site.
IMPORTANT Before connection of the main power cables (L1 - L2 - L3) on the terminal block, it is imperative to check the correct order of the 3 phases before proceeding to the connection on then terminal block or the main disconnect/isolator switch. 13.
14 - MAJOR SYSTEM COMPONENTS AND OPERATION DATA 14.1 - Geared twin screw compressor • 30HXC and 30GX units use 06N geared twin screw compressors • 06NA are used on 30GX (air-cooled condensing application) • 06NW are used on 30HXC (water-cooled condensing application) • Nominal capacities range from 39 to 80 tons. Economized or non economized models are used depending on the 30HXC and 30GX unit size. 14.1.1 - Oil Filter The 06N screw compressor has an oil filter integral in the compressor housing.
desired liquid level in the cooler (as is done for NonEconomized chillers). The float valve maintains a liquid level in the bottom of the economizer. Liquid refrigerant is supplied from the condenser to the bottom of the economizer. As the refrigerant passes through the EXV, its pressure is reduced to an intermediate level of about 500 kPa. This pressure is maintained inside the economizer shell.
14.
15 - MAINTENANCE 15.1 - Refrigerant charging - adding charge IMPORTANT These units are designed for use with R-134a only. DO NOT USE ANY OTHER refrigerant in these units. CAUTION When adding or removing charge, circulate water through the condenser (HX) and cooler at all times to prevent freezing. Freezing damage is considered abuse and may void the Carrier warranty. CAUTION DO NOT OVERCHARGE system.
15.3 - Pressure transducers 15.3.1 - Discharge pressure (circuits A & B) This input is used to measure the high side pressure of each circuit of the unit. It is used to provide the pressure to replace the discharge pressure gauge and to control the head pressure. 15.3.2 - Suction pressure (circuits A & B) This input is used to measure the pressure of the low side of the unit. It is used to provide the pressure to replace the suction pressure gauge. 15.3.
To minimize the opportunity for reverse rotation, the following procedure must be applied. Rewire the power cables to the compressor terminal pin as originally wired. For replacement of the compressor, a low pressure switch is included with the compressor. This low pressure switch should be temporarily installed as a hard safety on the high pressure part of the compressor. The purpose of this switch is to protect the compressor against any wiring errors at the compressor terminal pin.
16 - START-UP CKECKLIST FOR 30HXC/GX LIQUID CHILLERS (USE FOR JOB FILE) Preliminary information Job name: ................................................................................................................................................................................................ Location: .................................................................................................................................................................................................
Check condenser system (30HXC) All condenser water valves are open All condenser piping is connected properly All air has been vented from the system Condenser water pump (CWP) is operating with the correct rotation. Condenser water pump amperage: Rated:……..
Check pressure drop across the condenser (30HXC only) Entering condenser = ................................ (kPa) Leaving condenser = ................................ (kPa) (Leaving - entering) = .............................. (kPa) WARNING Plot condenser pressure drop on performance data chart (in product data literature) to determine total liters per second (l/s) and find unit's minimum flow rate. Total l/s = .................................................. l/s / nominal kW = ...........................
Order No: 13173-76, 03 1999 - Supersedes No: 13173-76, March 1998 Manufacturer reserves the right to change any product specifications without notice. Manufacturer: Carrier s.a., Montluel, France. Printed in the Netherlands on chlorine-free paper.
