Air-cooled Screw chillers by Voltas Limited

More catalogs by Voltas Limited | Air-cooled Screw chillers | 64 pages | 2008-06-20

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Voltas Limited
a TATA Enterprise
Voltas House,
"A" Block,
Dr. Babasaheb Ambedkar Road,
Chinchpokli,
Mumbai 400 033

Catalog Air-cooled Screw chillers

operation of air cooled screw chillers air cooled screw chiller by voltas limited air cooled screw chillers by voltas limited air cooled screw chillers compressor air cooled screw chillers air cooled screw chiller dunham bush air cooled screw chillers dunham bush rotary screw water chillers voltas water cooled screw chiller dunham bush voltas air cooled screw chiller 4 ton air cooled water chillers air cooled water chiller water cooled screw chiller water cooled screw chillers air cooled water chiller piping drawings air cooled water chiller piping design air cooled chiller by voltas limited controler voltas air cooled chiller water cooled screw chiller voltas leaving chilled water temperature sensor chill water flow switch hot gas bypass valve shell tube heat exchanger air cooled chillers by voltas bearing oil level sight glass air cooled package unit by voltas air cooled chiller dunham bush air cooled chiller air cooled chillers air cooled chillers 3 acdx a air cooled chillers acdx e air cooled chillers water cooled water chiller dunham bush air cooled chiller information air cooled chiller drawings screw chiller control panel voltas water cooled chiller water cooled screw chillers by voltas limited rotary screw compressors dunham bush chiller water pump screw compressor slide valve dunham bush water cooled chillers water cool chiller water cooled chiller f water cooled chiller rotary screw compressor oil chiller water pump selection chiller control panel electrical operation of screw compressor water cooled chiller chiller control panel wiring chilled water connection to chiller water temperature sensor for chiller electrical controls wiring diagram of water chiller installation of the flow switch in chiller dunham bush water cooled screw chillers

Air-cooled Screw chillers is listed under these categories

Home & Garden > Heating Cooling & Air > Air Conditioners

Featured catalog pages of Air-cooled Screw chillers

size range · · · · · rated in accordance with ari standard 550/590-98 14 models from 48 to 208 tons compact standard extended and extra quiet versions available rated with hcfc-22 and compatible with hfc-134a and hfc-407c painted external panels meet or exceed 500 hour salt spray per astm 117 quiet operation · standard and extended extra quiet units are supplied with 855 rpm quiet fans · extra quiet fan option provides 6-8 dba lower noise levels compressor · · · · reliable hermetic rotary screw type at 3550 rpm independent refrigerant circuits infinitely variable slide valve unloading for precise load matching compressor cycling for maximum efficiency cooler · asme/crn stamped for safety · dunham-bush high efficiency inner fin design for compactness and weight reduction · 300 psig on ch series and 250 psig on ex series refrigerant side design pressure · 200 psig on water side design pressure condenser · · · · long life copper tubes with aluminum fins sub-cooling

options are installed at the factory indicator light set osl provides indicator lights for control power motor overload high motor temperature and alarm status control circuit transformer tsf appropriate kva rating to power the 115/1/60 control circuit and compressor oil heaters off the service voltage chiller heater transformer cht appropriate kva rating to power the 115/1/60 evaporator vessel heater tape 115v convenience outlet con duplex outlet located inside the control panel and protected by a 15 amp fuse over/undervoltage and phase protection relay uvr2 protects against high and low incoming voltage conditions as well as phase loss phase reversal and phase imbalance by opening the control circuit it is an automatic reset device fin guard 1 x 3.75 25.4 mm x 95.3 mm mesh pvc dipped wire coil guard upper covers vertical coils only fgt lower encloses piping and evaporator only fgb painted steel louvers luv for complete unit closure and general mechanical security painted grill

figure 16 kpa 150 120 90 feet of water 50 40 30 1 2 60 45 20 15 30 24 18 15 12 9 gpm 10 8 6 5 4 3 l/s 80 3.8 100 6.3 150 9.5 200 12.6 300 18.9 400 25.2 600 37.8 800 1000 50.5 63.1 water flow rate table 16 english i.p units cooler model chs013601a chs011601b chs013601b exd16112j11dvr0 exd14102j09dvr0 exd16122j11dvr0 exd16122j09dvr0 exd18122j11dvr0 exd16122j07dvr0 ext20122j11dvr0 ext20122j09dvr0 ext20122j07dvr0 ext18122j07dvr0 8 9 10 5 6 7 4 curve no minimum gpm 1 2 3 81 86 101 145 140 159 191 177 236 183 220 298 267 maximum gpm 220 304 407 417 428 443 536 604 677 600 738 881 1030 refer to table for minimum gpm 16 3 4 5 6 7 8 9 10 cooler water side pressure drop metric s.i units minimum lit sec 5.11 5.43 6.37 9.15 8.83 10.03 12.05 11.17 14.89 11.55 13.88 18.80 16.85 maximum lit sec 13.88 19.18 25.68 26.31 27.76 27.95 33.82 38.11 42.71 37.85 46.56 55.58

acdx-b 178 188 198 208 acdx-b model compressors model qty oil charge per compressor gal oil type oil lubrication capacity reduction crankcase heater watts/compr standard evaporator water volume gallons minimum flow rate gpm maximum flow rate gpm water conn size in/out type evaporator for 42°f lwt water volume gallons minimum flow rate gpm maximum flow rate gpm water conn size in/out type evaporator for 40°f lwt water volume gallons minimum flow rate gpm maximum flow rate gpm water conn size in/out type condenser compact length model fan quantity1 standard length model fan quantity nominal rpm2 60 hz nominal motor hp each 2 nominal motor kw each 2 general minimum starting/operating ambient °f3 w/low ambient option °f var spd 3 w/extra low ambient option °f number of circuits refrigerant charge lbs r-22 compact c unit weights shipping weight lbs al fin/cu fin operating weight lbs al fin/cu fin standard s unit weights shipping weight lbs al fin/cu fin operating weight lbs al

4-fan unit acdx1b-048s acdx1b-058c acdx1b-068c 24.00 [610 air flow no obstructions water out see table water in see table 27.88 [708 d 72.93 c [1471 129.00 [328 left side view note 1 all dimensions are in inches and millimeters 2 vent drain connections provided on cooler 3 allow 60 [1524 clearance at control panel end of unit for service 4 use minimum 36 [914 flexible conduit to control box to isolate unit 5 water piping to be supported to minimize load on unit 6 all dimensions and specifications are subject to change without notice 28 chiller chso1160 chso1360 conn 4 npt 4 npt a 10.29 [261 9.07 [230 b 14.80 [376 15.93 [404 c 57.00 [1448 57.00 [1448 d 53.50 [1359 53.50 [1359 dimensional data 48.00 [1219 air flow side bottom allow 60 [1524 for service access 88.00 [2235 48.00 [1219 air flow side bottom top view clearance service and access requirements not wall or well dimensions power entry see note 4 [130 64.50 [1638 5.13 71.50 [1816 lifting mounting hole location

12-fan unit acdx1b-148c acdx1b-158c acdx1b-178c acdx1b-188c 24.00 [610 #12 48.00 [1219 #10 #11 #9 48.00 [1219 clearance service and access requirements not wall or well dimensions water out see table d 28.75 [730 69.06 [1754 note 1 all dimensions are in inches and millimeters 2 vent drain connections provided on cooler 3 allow 60 [1524 clearance at control panel end of unit for service 4 use minimum 36 [914 flexible conduit to control box to isolate unit 5 water piping to be supported to minimize load on unit 6 all dimensions and specifications are subject to change without notice 34 chiller ext18122 ext20122 conn 8 vic 10 vic a 29.12 [740 26.45 [672 b 18.17 [462 19.17 [487 c 106.44 [2704 107.81 [2738 d 105.50 [2680 102.88 [2613 dimensional data air flow side bottom allow 60 [1524 for service access #2 #8 #6 #4 88.00 [2235 #7 #5 #3 #1 air flow side bottom top view air flow no obstructions power entry see note 4 [130 62.86 [1597 5.13 69.86 [1774 water in see table c 99.31

extended length unit acdx-b model voltage 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 200 230 400 460 575 ph 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 3 hz 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 60 60 50 60 60 mca 272 240 121 121 95 328 292 147 147 114 383 340 170 170 134 484 428 215 215 170 529 468 235 235 185 582 512 257 257 201 632 559 280 280 221 688 609 305 305 241 825 672 337 337 253 820 680 341 341 271 838 825 373 373 292 934 809 397 397 312 957 829 416 416 328 981 867 435 435 344 mfs 450 400 200 200 150 500 450 225

customer supplied power 115 vac audx-not supplied 5tb see notes 2 3 and 4 102 chiller heater 1 101 14awg see power diagram for chiller htr transformer option see power diagram for transformer option see notes 2 3 and 4 115 vac 1 2 3tb see note 5 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 1m2-1 3 400w comp oil sump htr s1control power 7 j7 8 1m1-2 comp 1 liq injection sol 1 2 12 5 6 7 12vac digital i/o board 1di/ob 10 1h 1di j1 ribbon cable to microcomputer 1m1-1 9 1m2-2 1n comp switch auxiliary 2h see note 9 2di 1cpr 2n comp 1 oil float switch 8 8 see notes 7 9 cwp 13 11 cwfs 12 3h 4h 3di 4di 2cpr 3n 4n water flow switch unit control 4tb 61 60 sh 20 21 1m1 1m2 2sol audx-field wired +12vdc gnd 1c 1cp 1no comp 1 ctr 1st winding 6 13 comp 1 ctr 2nd winding 2 13 comp 1 liquid line sol 3cr-1 10 2c 2cp 2no 28 3sol comp 1 load solenoid 3c 3cp 3no 29 4sol comp 1

88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 keyboard j3 j2 display ribbon cable to digital i/o boards ribbon cable microcomputer mcb j5 audx-field wired rs485 serial communication ports red 1ts leaving cooler water temp 87 88 92 90 91 92 sh rs232 j6 20 j7 blk wht red ai board #1 1aib +5 ai5 ai1 gnd 4tb 90 96 red grn wht discharge pressure comp 2 4pt 4tb 4tb 4tb 92 sh 12vac 21 90 97 red grn wht suction pressure comp 3 4tb ai2 4tb 4tb 4tb 1zd gnd ai3 4tb 4tb 4tb ai4 4tb 4tb 2zd gnd +5 ai8 gnd 5pt instructions press help key for basic operation instructions to display control value 1 press menu key to display menu item 2 use up or down arrow to move to desired menu item 3 press enter key to select desired menu item 4 use up or down arrow to display desired control value for more information see owners manual suction pressure comp 1 1pt grn wht ai6 3zd gnd 4tb ai7 4tb 4tb 4tb 4tb 92 sh 90 98 92

b control center s individual microcomputer shall provide compressor staging based on leaving water temperature and maintain equal loading of multiple compressors throughout the full range of operation it shall have a two-line 80 character alphanumeric liquid crystal display utilizing an easy-tounderstand menu driven software it shall be proactive in control and accommodate system anomalies such as high condensing pressure low suction pressure and high compressor amp draw by controlling loading to keep the unit running but at reduced capacity until the fault is fixed battery backedup real time clock and memory with over 10 years life and automatic recharge of lithium ion battery that requires no service c microcomputer individual chiller controller shall provide for 1 unit control a staging of compressors b loading and unloading of compressors based on leaving water temperature c activating condenser fan relays for fan cycling head pressure control d seven-day time clock with

november 1999 101 burgess road harrisonburg va 22801 phone 540-434-0711 fax 540-432-6690 www.dunham-bush.com acdx/audx condenser clearance form no