Water Cooled Chiller - Multistack

Water Cooled Chiller CatalogTABLE OF CONTENTSProduct Introduction................................................................................................................................................... 3Performance Data....................................................................................................................................................... 4General Data Table...................................................................................................................................................... 6Pressure Drop Tables................................................................................................................................................... 7Electrical Data............................................................................................................................................................. 8Chiller Drawing........................................................................................................................................................... 9Sample Piping Schematics......................................................................................................................................... 10Controller Schematics................................................................................................................................................ 12Mechanical Specifications.......................................................................................................................................... 13MODEL NUMBER NOMENCLATUREExistingMS 50 X 1 H 1 W 0 R-410ANewMS 050 X N 1 H 1 A 0 A A -410ASeriesCompressor TypeCondenser 6RefrigerantVoltage 3 AHRIApplication 4Number (1 - single,Evaporator 5Version - if applicable- multiple)Module 2Configuration 2AHRI Certified (C - certified, N - Not certified)Module Nominal Capacity (10 - 160 tons)1 B: Bristol, C: Trane Cornerstone, R: Bitzer Screw, S: Trane Scroll, T: Danfoss Turbocor, Z: Copeland scroll (old elec), X: Copeland Scroll (ZP), A: Copeland Scroll (ZR)2 1- Standard, 2- Total access, 3 - Evap extended headers, 4 - Cond extended headers, 5 - Both extended headers, V - others3 A - 208/3/60, L - 230/3/60, H - 460/3/60, C - 575/3/60, D - 200/3/50, E - 400/3/50, F - 380/3/60, S - 220/230/1/60, V - other4 C - Single module temp controller, A-Air Cooled split, D - Cond unit, F - Fluid cooler (high temp),H - Heat recovery, R - Heat pump, W - Water cooled5 A - Brazed SS, B - Brazed SMO, C- S&T copper, D - S&T cu-Ni, V - Other6 A - Brazed SS, B - Brazed SMO, C- S&T copper, D - S&T cu-Ni, E - Double wall brazed, V - Other2

Water Cooled Chiller CatalogPERFORMANCE DATASINGLEMODULEENTERING CONDENSER WATER TEMPERATUREMS010X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 10.3 7.8 0.757 15.8 10.1 8.3 0.822 14.6 9.8 8.7 0.888 13.5 9.5 9.2 0.986 12.4 9.2 9.7 1.054 11.342°F 10.8 7.8 0.722 16.5 10.5 8.2 0.781 15.3 10.2 8.7 0.853 14.1 9.9 9.2 0.929 12.9 9.6 9.7 1.010 11.944°F 11.2 7.8 0.696 17.3 10.9 8.2 0.752 16.0 10.6 8.7 0.821 14.7 10.3 9.1 0.883 13.5 10.0 9.6 0.960 12.445°F 11.4 7.8 0.684 17.6 11.1 8.2 0.739 16.3 10.8 8.6 0.796 15.0 10.5 9.1 0.867 13.8 10.2 9.6 0.941 12.746°F 11.6 7.7 0.664 18.0 11.3 8.2 0.726 16.7 11.0 8.6 0.782 15.4 10.7 9.1 0.850 14.1 10.4 9.6 0.923 13.048°F 12.1 7.7 0.636 18.8 11.8 8.1 0.686 17.4 11.5 8.6 0.748 16.1 11.2 9.1 0.813 14.8 10.8 9.6 0.889 13.650°F 12.6 7.7 0.611 19.6 12.3 8.1 0.659 18.1 11.9 8.5 0.714 11.9 11.6 9.0 0.776 15.4 11.2 9.5 0.848 14.2MS015X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 17.4 12.1 0.695 17.2 17.0 12.9 0.759 15.8 16.5 13.6 0.824 14.5 16.0 14.4 0.900 13.3 15.6 15.3 0.981 12.242°F 18.1 12.1 0.669 17.9 17.6 12.9 0.733 16.4 17.2 13.6 0.791 15.1 16.7 14.4 0.862 13.9 16.2 15.3 0.944 12.744°F 18.8 12.2 0.649 18.5 18.3 12.9 0.705 17.1 17.8 13.7 0.770 15.7 17.3 14.5 0.838 14.5 16.8 15.3 0.911 13.245°F 19.2 12.2 0.635 18.9 18.7 12.9 0.690 17.4 18.2 13.7 0.753 16.0 17.7 14.5 0.819 14.7 17.2 15.3 0.890 13.446°F 19.6 12.2 0.622 19.2 19.0 12.9 0.679 17.7 18.5 13.7 0.741 16.3 18.0 14.5 0.806 14.9 17.5 15.3 0.874 13.748°F 20.3 12.2 0.601 19.9 19.8 12.9 0.652 18.3 19.3 13.7 0.710 16.9 18.7 14.5 0.775 14.5 18.2 15.3 0.841 15.350°F 21.1 12.3 0.583 20.6 20.5 13.0 0.634 19.0 20.0 13.7 0.685 17.5 19.4 14.5 0.747 16.1 18.9 15.4 0.815 14.7MS020X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 20.9 14.4 0.689 17.4 20.3 15.0 0.739 16.3 19.8 15.8 0.798 15.0 19.1 16.6 0.869 13.8 18.5 17.6 0.951 12.642°F 21.6 14.4 0.667 18.0 21.1 15.0 0.711 16.8 20.5 15.8 0.771 15.6 19.9 16.6 0.834 14.4 19.3 17.6 0.912 13.144°F 22.4 14.4 0.643 18.6 21.9 15.1 0.689 17.4 21.3 15.8 0.742 16.2 20.7 16.7 0.807 14.9 20.0 17.6 0.880 13.645°F 22.8 14.4 0.632 19.0 22.3 15.1 0.677 17.7 21.7 15.8 0.728 16.5 21.1 16.7 0.791 15.2 20.4 17.6 0.863 13.946°F 23.2 14.5 0.625 19.3 22.7 15.1 0.665 18.0 22.1 15.8 0.715 16.7 21.5 16.7 0.777 15.5 20.8 17.6 0.846 14.248°F 24.0 14.5 0.604 19.9 23.5 15.1 0.643 18.6 22.9 15.9 0.694 17.3 22.3 16.7 0.749 16.0 21.6 17.7 0.819 14.750°F 24.9 14.5 0.582 20.6 24.3 15.2 0.626 19.3 23.8 15.9 0.668 17.9 23.1 16.7 0.723 16.6 22.5 17.7 0.787 15.2MS030X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 31.0 21.6 0.697 17.2 30.3 22.6 0.746 16.1 29.5 23.7 0.803 14.9 28.7 24.9 0.868 13.8 27.8 26.2 0.942 12.742°F 32.2 21.8 0.677 17.8 31.5 22.8 0.724 16.6 30.7 23.8 0.775 15.4 29.8 25.0 0.839 14.3 28.9 26.3 0.910 13.244°F 33.4 21.9 0.656 18.3 32.7 22.9 0.700 17.1 31.8 24.0 0.755 15.9 31.0 25.1 0.810 14.8 30.1 26.4 0.877 13.745°F 34.1 22.0 0.645 18.6 33.3 23.0 0.691 17.4 32.4 24.0 0.741 16.2 31.6 25.2 0.797 15.0 30.6 26.5 0.866 13.946°F 34.7 22.1 0.637 18.9 33.9 23.0 0.678 17.6 33.0 24.1 0.730 16.5 32.2 25.3 0.786 15.3 31.2 26.5 0.849 14.148°F 36.0 22.3 0.619 19.4 35.2 23.2 0.659 18.2 34.3 24.3 0.708 17.0 33.4 25.4 0.760 15.8 32.4 26.6 0.821 14.650°F 37.3 22.5 0.603 19.9 36.4 23.4 0.643 18.7 35.5 24.4 0.687 17.5 34.6 25.5 0.737 16.3 33.6 26.8 0.798 15.1All performance data is based on a 10°F chilled water temperature drop through the evaporator and condenser. For total chiller performance multiply above output (TONS) and input (KW) bythe number of modules. For selection procedures see selection software at www.multistack.com.4

Water Cooled Chiller CatalogPERFORMANCE DATASINGLEMODULEENTERING CONDENSER WATER TEMPERATUREMS050X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 50.3 34.7 0.690 17.4 49.0 36.4 0.743 16.2 47.6 38.2 0.803 15.0 46.2 40.2 0.870 13.8 44.8 42.4 0.946 12.742°F 52.3 34.8 0.665 18.0 50.9 36.5 0.717 16.7 49.5 38.4 0.776 15.5 48.1 40.3 0.838 14.3 46.6 42.5 0.912 13.244°F 54.4 35.0 0.643 18.6 52.9 36.7 0.694 17.3 51.5 38.5 0.748 16.0 50.0 40.5 0.810 14.8 48.4 42.6 0.880 13.645°F 55.4 35.1 0.634 18.9 54.0 36.8 0.681 17.6 52.5 38.6 0.735 16.3 51.0 40.5 0.794 15.1 49.4 42.7 0.864 13.946°F 56.5 35.2 0.623 19.3 55.0 36.8 0.669 17.9 53.5 38.6 0.721 16.6 52.0 40.6 0.781 15.4 50.4 42.7 0.847 14.148°F 58.6 35.4 0.604 19.9 57.1 37.0 0.648 18.5 55.6 38.8 0.698 17.2 54.0 40.7 0.754 15.9 52.3 42.9 0.820 14.750°F 60.9 35.6 0.585 20.6 59.3 37.2 0.627 19.2 57.7 38.9 0.674 17.8 56.1 40.9 0.729 16.5 54.4 43.0 0.790 15.2MS070X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 65.8 44.9 0.682 17.6 64.1 47.1 0.735 16.3 62.4 49.5 0.793 15.1 60.6 52.1 0.860 14.0 58.8 54.8 0.932 12.942°F 68.4 45.1 0.659 18.2 66.6 47.3 0.710 16.9 64.8 49.7 0.767 15.7 63.0 52.3 0.830 14.5 61.1 55.0 0.900 13.344°F 71.0 45.4 0.639 18.8 69.2 47.6 0.688 17.5 67.4 49.9 0.740 16.2 65.5 52.5 0.802 15.0 63.5 55.3 0.871 13.845°F 72.4 45.6 0.630 19.1 70.6 47.7 0.676 17.7 68.7 50.1 0.729 16.5 66.7 52.6 0.789 15.2 64.7 55.4 0.856 14.046°F 73.8 45.7 0.619 19.4 71.9 47.9 0.666 18.0 70.0 50.2 0.717 16.7 68.0 52.7 0.775 15.5 66.0 55.5 0.841 14.348°F 76.6 46.0 0.601 20.0 74.6 48.1 0.645 18.6 72.6 50.5 0.696 17.3 70.6 53.0 0.751 16.0 68.5 55.7 0.813 14.750°F 79.5 46.4 0.584 20.6 77.4 48.5 0.627 19.2 75.4 50.7 0.672 17.8 73.2 53.3 0.728 16.5 71.1 56.0 0.788 15.2MS085X_W 75°F 80°F 85°F 90°F 95°FLeaving ChilledWater °FOutputTonsInputKWKW/TonEEROutputTonsInputKWKW/TonEEROutput InputTons KWKW/TonEEROutputTonsInputKWKW/TonEEROutputTonsInputKWKW/Ton EER40°F 81.0 56.8 0.701 17.1 79.2 59.2 0.747 16.1 77.2 61.9 0.802 15.0 75.1 65.0 0.866 13.9 73.0 68.3 0.936 12.842°F 84.2 56.9 0.676 17.7 82.3 59.3 0.721 16.7 80.3 62.0 0.772 15.5 78.2 65.0 0.831 14.4 76.0 68.3 0.899 13.344°F 87.5 57.1 0.653 18.4 85.6 59.4 0.694 17.3 83.5 62.1 0.744 16.1 81.4 65.1 0.800 15.0 79.1 68.4 0.865 13.945°F 89.2 57.3 0.642 18.7 87.3 59.5 0.682 17.6 85.2 62.2 0.730 16.4 83.0 65.1 0.784 15.3 80.7 68.4 0.848 14.246°F 90.9 57.4 0.631 19.0 88.9 59.6 0.670 17.9 86.8 62.2 0.717 16.7 84.6 65.2 0.771 15.6 82.3 68.4 0.831 14.448°F 94.5 57.6 0.610 19.7 92.4 59.8 0.647 18.5 90.2 62.4 0.692 17.4 88.0 65.3 0.742 16.2 85.6 68.5 0.800 15.050°F 98.1 57.9 0.590 20.3 96.0 60.0 0.625 19.2 93.7 62.5 0.667 18.0 91.4 65.4 0.716 16.8 88.9 68.6 0.772 15.6All performance data is based on a 10°F chilled water temperature drop through the evaporator and condenser. For total chiller performance multiply above output (TONS) and input (KW) bythe number of modules. For selection procedures see selection software at www.multistack.com.5

Water Cooled Chiller CatalogGENERAL TABLEMS010X MS015X MS020X MS030X MS050X MS070X MS085XCompressor Type Scroll Scroll Scroll Scroll Scroll Scroll ScrollDry Weight (lbs. each) 89 135 135 146 353 390 441Normal Capacity (tons each) 5 7.5 10 15 25 30 40Quantity 2 2 2 2 2 2 2Oil Charge (pints per compressor) 3.5 6.9 6.9 6.9 14.4 13.3 13.3Evaporator (Brazed Plate) Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed PlateWeight (lbs. each) 80 80 80 105 180 243 292Water Storage (gallons each) 1.9 1.9 1.9 2.9 4.8 7.3 10.1Circuit Configuration Dual Dual Dual Dual Dual Dual DualQuantity 1 1 1 1 1 1 1Header System (gallons) 7 7 7 7 7 7 14Condenser Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed Plate Brazed PlateWeight (lbs. each) 90 90 90 135 220 313 340Water Storage (gal. each) 2.4 2.4 2.4 4.1 6.6 10.1 12.3Circuit Configuration Dual Dual Dual Dual Dual Dual DualQuantity 1 1 1 1 1 1 1Header System (gallons) 7 7 7 7 7 7 14Refrigerant Type R410A R410A R410A R410A R410A R410A R410ACharge (lbs./circuit) 8 8 8 12 18 24 28Number of Circuits 2 2 2 2 2 2 2Operating Weight (lbs.) 1155 1200 1200 1625 2000 2200 2550Shipping Weight (lbs.) 995 1040 1040 1450 1730 1900 21006

Water Cooled Chiller CatalogPRESSURE DROP TABLES504030Evaporator Pressure DropUse Curve ForA: MS010X_W, MS015X_W, MS020X_W EvaporatorB: MS030X_W EvaporatorC: MS050X_W EvaporatorD: MS070X_W EvaporatorE: MS085X_W EvaporatorB C D EPRESSURE DROP - FT OF WATER2010987654322030405060708090100200WATER FLOW - GPM PER MODULE30040050060050Condenser Pressure DropUse Curve ForA: MS010X_W, MS015X_W, MS020X_W CondenserB: MS030X_W CondenserC: MS050X_W CondenserD: MS070X_W CondenserE: MS085X_W Condenser4030B C D EPRESSURE DROP - FT OF WATER2010987654322030405060708090100200WATER FLOW - GPM PER MODULE3004005006007

Water Cooled Chiller CatalogELECTRICAL DATAExternal Input/Output ConnectionsSystem Wire & Fuse SizingSpecifications(Applicable codes may require different wire sizing)1. Compressor Rated Load Amps (RLA) and Locked Rotor Amps (LRA)Data: RLA/LRAVOLTAGE 208 230 460 575MS010X 15/123 14/123 6.8/62 5.5/50MS015X 25.3/225 22.8/225 11.4/114 8.8/80MS020X 29.8/239 27/239 13.5/125 10.8/80MS030X 49.8/340 45/340 22.5/173 18/132MS050X 67/605 60/605 30/272 24/215MS070X 89/599 80/599 40/310 32/239MS085X N/A N/A 51/368 N/A2. Wiring Sizing: Minimum Circuit Ampacity (MCA)MCA = (1.25 x RLA1*) + RLA2 + RLA3MCA3 CONDUCTORS1 CONDUIT6 CONDUCTORS2 CONDUIT50 8 —65 6 —85 4 —100 3 —115 2 —130 1 —150 1/0 —175 2/0 —200 3/0 —230 4/0 —255 250 MCM —285 300 MCM 1/0300 — 2/0350 — 3/0400 — 4/0460 — 4/0500 — 250 MCM83. Fuse Sizing: Maximum Fuse (MF), Type RK5 FuseMF= (2.25 x RLA1*) + RLA2 + RLA3Where the MF does not equal a standard size fuse, the next larger size shouldbe used.4. NOTES:A.*RLA1 = RLA of the largest compressor in the system. RLA2 & RLA3 = RLA ofthe other compressors in the system.B. The total system Minimum Circuit Ampacity (aMCA) shall not exceed 500A.C. Wire sizing is based on the Nat. Electr. Code (NEC) rating for 75°C copperwire, with 3 wires per conduit.D. Wiring Distance from branch circuit shall not exceed 100ft.

Water Cooled Chiller CatalogSCHEMATICSRequired Chilled Water Piping1/2” SENSOR POCKETS SUPPLIED BY MULTISTACKInstallation of sensor pocket (weld-a let) isrecommended at 30” from end of chiller, suppliedand installed by othersSTRAINER ISOLATION VALVESUPPLIED ANDINSTALLED BY OTHERSPRESSURE TAPSSUPPLIED AND INSTALLED BYMULTISTACKSTANDARD “Y” STRAINERSUPPLIED AND INSTALLED BY OTHERS.*NOTE: SELECT STRAINER BASED ONWATER QUALITYCHILLED WATER PUMPSUPPLIED AND INSTALLEDBY OTHERSSPFROMBUILDING LOADMULTISTACKCHILLERSPFSTOBUILDING LOADCHILLER ISOLATION VALVESSUPPLIED AND INSTALLED BY OTHERSFLOW SWITCHSUPPLIED AND INSTALLEDBY OTHERSCondenser Schematic with Head Pressure ControlPRESSURE TAPSSUPPLIED AND INSTALLED BYMULTISTACK1/2” SENSOR POCKETS SUPPLIED BY MULTISTACKInstallation of sensor pocket (weld-a-let) is recommendedat 30” from end of chiller, supplied and installed by othersCONDENSER ISOLATION VALVESSUPPLIED AND INSTALLED BY OTHERSFLOW SWITCHSUPPLIED AND INSTALLEDBY OTHERSMULTISTACKCHILLERSPSPSTANDARD “Y” STRAINERSUPPLIED AND INSTALLED BY OTHERS.NOTE: SELECT STRAINER MESH BASED ONWATER QUALITYFSSTRAINER ISOLATION VALVESUPPLIED AND INSTALLEDBY OTHERSTOCOOLINGTOWERFROMCOOLINGTOWER3-WAY CONDENSERBY-PASS VALVESUPPLIED AND INSTALLED INBUILDING BY OTHERSCONDENSER WATER PUMPSUPPLIED AND INSTALLED BY OTHERS9

Water Cooled Chiller CatalogCHILLER DRAWINGChiller Installation Dimensions: MS015X, MS020X, MS030X, MS050X, MS070XPlan View42”REQUIRED12”MIN28”42”RECOMMENDEDFront Elevation View – Chiller LengthNOTE: THE MAIN POWERCONNECTION FOR A SINGLEMODULE CHILLER IS LOCATEDINSIDE MODULE.32”RECOMMENDED10

Water Cooled Chiller CatalogTOTAL ACCESS DRAWINGChiller Installation Dimensions: MS015X, MS020X, MS030X, MS050X, MS070XRail = Number of Modules x Width + 812

Water Cooled Chiller CatalogTOTAL ACCESS DRAWINGChiller Installation Dimensions: MS085X13

Chiller DataWater Cooled Chiller CatalogCONTROLLER SCHEMATICSENT. CHILLED WATER TEMP.LVG. CHILLED WATER TEMPVERIFY CHILLED WATER FLOWENT. COND. WATER TEMPLVG. COND. WATER TEMPVERIFY COND. WATER FLOWCUSTOMER INTERLOCKSCHILLED WATER RESET INPUT/LOAD LIMIT RESET INPUTCHILLED WATERPUMP OPERATIONCONDENSER WATERPUMP OPERATIONFAULT NOTIFICATIONFULL LOAD RELAYMULTIFLUSH OUTPUTBUILDING AUTOMATIONSOLUTIONSINTEROPERABILITYPORTALSRS485 Serial CardMASTER CONTROLCan stage a maximum of 15 modules(30 compressors)PCO Net RS485 Interface BoardModule DataREMOTE DISPLAY(optional)MODULE CONTROL PANELPCO Web Ethernet Interface BoardDATA FROM REFRIGERATION SYSTEM “A”HP TRANSDUCERHIGH PRESSURE SWITCHLP TRANSDUCERCOMP. MOTOR PROTECTIONSUCTION TEMPERATURELVG. CHILLED WATER TEMPCIRCUIT FAULT CONDITIONDATA FROM REFRIGERATION SYSTEM “B”HP TRANSDUCERHIGH PRESSURE SWITCHLP TRANSDUCERCOMP. MOTOR PROTECTIONSUCTION TEMPERATURELVG. CHILLED WATER TEMPCIRCUIT FAULT CONDITIONHIGH VOLTAGE CONTROL PANELCIRCUIT “A” COMPRESSOR CONTACTORCIRCUIT “B” COMPRESSOR CONTACTORBACNET • MSTP• ETHERNET• TCP/IPMODBUS (RTU)SNMP PROTOCOLLONMARK 14

Water Cooled Chiller CatalogMECHANICAL SPECIFICATIONSGeneralModules are ETL listed in accordance with UL standard 1995 and are CSA certified perstandard C22.2 #236 on all heat exchangers.Modules ship wired and charged with refrigerant and oil, ready for installation. Allmodules are factory run tested prior to shipment.Compressors, heat exchangers, piping and controls are mounted on a heavy gaugesteel frame. Electrical controls, contactors, and relays for each module, are mountedwithin that module.Chilled and Condensed Water MainsEach module includes supply and return mains for both chilled and condensed water.Grooved end connections are provided for interconnection to 6” US standard (6.625outside diameter) customer piping with victaulic type couplings. Standard unitsinclude 30 mesh in-line strainers in the condenser and evaporator supply headers. Alsostandard is the Multiflush automatic debris removal system.Evaporators and CondensersEach evaporator and condenser is a brazed plate heat exchanger constructed of 316stainless steel; designed, tested and stamped for a 650 psig working pressure.CompressorsEach module contains two separate refrigeration systems. The hermetic compressor ineach system is mounted to the frame with rubber-in-shear isolators. Each system alsoincludes high discharge pressure and low suction pressure cutouts.Central Control SystemScheduling of the various compressors is performed by the microprocessor control.Compressors operating schedules are sequenced every 24 hours to assure distributionof run time. This microprocessor monitors the following on each refrigeration system:• Discharge pressure cut-out• Suction pressure cut-out• Compressor motor protector• Suction temperature• Evaporator entering and leaving chilled water temperatureA fault condition from these controls or sensors will cause a shutdown of thatcompressor with the transfer of load requirements to another available compressor.When a fault occurs, the microprocessor records the reading of conditions at thetime and stores the data for recall by operating personnel. This information can berecalled using the keys and displayed on the LCD screen. A running history of thefault occurrence conditions is maintained (up to the last 20 occurrences) should it berequired for trouble shooting.Individual monitoring of leaving chilled water temperaturefrom each refrigeration system is designed to protect against freeze-up.The control system monitors entering and leaving chilled water temperatures todetermine system load and selects the number of compressors required. Response timeand set points are adjustable.Options• Variable Flow• Inside Out/Total Access Design• Pump Options• Lifting Frame Options• Dry Cooler Options15

Originators…Multistack invented the modular water chiller. It started with a radically simple idea: chiller modules that could be brought into the equipment room one ata time, through standard doorways and down elevators, to form a fully integrated chiller system. The idea launched a revolution and transformed Multistackinto a leader in the commercial water-chiller industry.Innovators…Multistack perfected the modular chiller and leads the industry in innovative and environmentally friendly modular solutions. Since founding in the late1980s, Multistack has engineered, manufactured, and distributed an impressive array of modular air conditioning firsts: the first on-board strainer, thefirst modular automatic blow-down device, the first modular chiller for variable flow, the first modular chiller-heater (heat pump), the first modularheat-recovery chiller, the first modular air-to-water heat pump, the first modular chiller to utilize MagLev compressor technology, and the first modular chiller toutilize R-410A.Never the Imitators…Multistack sets the standard in the industry for superior customer service, fast and on time shipment, superior product quality, and new product development.Our pioneering leadership in environmental issues is well documented. If you want the best, be sure to specify the original – Multistack®.1065 Maple Avenue P.O. Box 510 Sparta, WI 54656Phone 608-366-2400 • Fax 608-366-2450www.multistack.comF148_0412