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HEAT REMOVAL/ENVIRONMENTAL CONTROL
Drycoolers - 60 Hz
GENERAL DATA
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TABLE OF CONTENTS LIEBERT DRYCOOLERS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 FEATURES AND BENEFITS OF LIEBERT DRYCOOLERS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2 SELECTION PROCEDURE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 PERFORMANCE DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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Figures Figure 1 Drycooler model numbers. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Figure 2 Capacity correction factor. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 3 Pressure drop correction factor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Figure 4 Dimensional data1-4 fan models
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LIEBERT DRYCOOLERS Liebert drycoolers are designed to be used in conjunction with water cooled refrigeration and air conditioning machines as well as a variety of commercial and industrial applications requiring the rejection of heat from machinery or processes via a cooling fluid. During periods of low ambient temperatures, drycoolers may assist or replace the capacity requirements of mechanical chillers for a free cooling effect. Liebert offers a full range of control options as well as e
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FEATURES AND BENEFITS OF LIEBERT DRYCOOLERS Heat Rejection Module The low-profile direct-drive propeller-fan type drycoolers utilize optimum circuitry to balance the heat rejec- tion of the corresponding load. Constructed of aluminum with a copper-tube aluminum coil, the unit is quiet and corrosion resistant. Low Noise Level All Liebert drycoolers are designed to operate at a minimal noise level. This is accomplished as the result of the Liebert fan blade design combined with a cabinet structu
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SELECTION PROCEDURE Table 4 shows the performance specifications for The MBH found should be equal to or greater than Liebert drycoolers using a 40% by volume ethylene the required MBH /ITD. glycol solution at an average fluid temperature of If the MBH is less than required, repeat from Step 2 115°F with flow rates from 1.5 to 3 GPM/circuit and with a larger model. You may wish to repeat from 3 at standard air (.075 lbs/ft ). Figure 2 and Figure 3 Step 2 with a smaller model for the most
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PERFORMANCE DATA Table 4 Drycooler performance data MBH/°F Initial Temperature Difference 1.5 GPM/CIR 2.0 GPM/CIR 2.5 GPM/CIR 3.0 GPM/CIR Model GPM No. of Number Range Circuits MBH/ITD PD ft. water MBH/ITD PD ft. water MBH/ITD PD ft. water MBH/ITD PD ft. water Standard Models 033 6-12 4* 1.3 4.2 1.5 6.2 1.6 9.2 1.7 12.8 069 6-12 4 1.8 7.3 2.1 11.4 2.3 17.0 2.4 23.6 12-24 8* 2.3 3.9 2.5 6.0 2.7 8.9 2.8 12.4 092 9-18 6 2.7 7.0 3.0 11.7 3.3 16.7 3.5 23.0 18-36 12' 3.2 3.7 3.5 6.2 3.7 8.7 3.8 12.1 2
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Table 4 Drycooler performance data (continued) MBH/°F Initial Temperature Difference 1.5 GPM/CIR 2.0 GPM/CIR 2.5 GPM/CIR 3.0 GPM/CIR Model GPM No. of Number Range Circuits MBH/ITD PD ft. water MBH/ITD PD ft. water MBH/ITD PD ft. water MBH/ITD PD ft. water Quiet-Line Models 040 6-12 4 1.4 7.4 1.5 11.4 1.6 17.0 1.7 23.5 12-24 8* 1.6 3.9 1.7 5.9 1.8 8.9 1.8 12.3 057 18-36 12* 2.1 3.6 2.2 6.1 2.3 8.6 2.3 11.9 24-48 16 2.2 3.0 2.3 4.6 2.3 6.2 2.4 8.6 060 12-24 8 2.2 7.1 2.3 11.3 2.4 16.6 2.5 23.0 24-
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DIMENSIONAL DATA Figure 4 Dimensional data1-4 fan models L 43-9/16" 70" (962mm) Eyebolts for lifting (1778mm) condenser provided on Height to top 4, 6 & 8 fan models only of fan guard 37-7/8" 43-1/8" (962mm) (1095mm) 18" (457mm) C 43-3/16" Center leg provided on 4 & 8 fan models only (1097mm) Figure 5 Dimensional data6 & 8 fan models L 87-1/8" 36" (914.4mm) 70" (2213mm) clearance (1778mm) recommended on Height to top all sides for of fan guard proper operation 43-1/8" and component (109
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Table 5 Drycooler physical data Drycooler #Fans Conn FNPT Model Circuits A B C L & Motors** In/Out Standard Models -033 any 42 - 44 51.5 1 3/4 -069 any 42 - 44 51.5 1 1-1/4 -092 any 42 - 44 51.5 1 1-1/2 -109 any 42 - 44 51.5 1 2 -112 any 42 - 44 51.5 1 2 -139 any 82 - 84 91.5 2 2 -174 any 82 - 84 91.5 2 2 -197 any 82 - 84 91.5 2 2 -225 any 82 - 84 91.5 2 2 -260 any 122 - 124 131.5 3 2 -310 any 122 - 124 131.5 3 2 -350 any 122 - 124 131.5 3 2 -352 any 82 80 164 171.5 4 2 -419 any 82 80 164 171.5
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ELECTRICAL DATA Table 6 Drycooler electrical data # of Fans 12 3468 Model # 33,69,92,109,112 139,174,197,225 260,310,350 352,419,466,491 620,650,700 790,880,940 Pump Hp ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD 208/230/60 0.75 1 11.6 13.5 20.0 - - - - - - - - - - - - - - - - - - - - 0.75 3 7.0 7.9 15.0 3 10.5 11.4 15.0 3 14.0 14.9 15.0 3 17.5 18.4 20.0 3 24.5 25.4 25.0 3 31.5 32.4 35.0 1.5 3 10.1 11.8 15.0 3 13.6 15.3 20.0 3 17.1 18.8 25.0 3 20.6 2
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Table 7 Drycooler electrical dataQuietline models # of Fans 12 3468 Model # 40,57,60 80,111,121 158,173,178 205,248 347,356 453,498 Pump Hp ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD ph FLA WSA OPD 208/230/60 0.75 3 5.3 6.2 15.0 3 7.1 8.0 15.0 3 8.9 9.8 15.0 3 10.7 11.6 15.0 3 14.3 15.2 15.0 3 17.9 18.8 20.0 1.5 3 8.4 10.1 15.0 3 10.2 11.9 15.0 3 12.0 13.7 20.0 3 13.8 15.5 20.0 3 17.4 19.1 25.0 3 21.0 22.7 25.0 2.0 3 9.3 11.2 15.0 3 11.1 13.0 20.0 3 12.9 14.8 20.
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GUIDE SPECIFICATIONS Standard Features for Direct Casing Quiet-Line Motors Drive Propeller Fan The drycooler casing shall be con- Fan motors shall be 12-pole, Drycoolers structed of bright aluminum 570 rpm, equipped with rain sheet. Casing shall be divided into shields and permanently sealed Furnish and install Liebert Model individual fan sections by full ball bearings. Motors shall ________ Air-Cooled Drycoolers, width baffles. Structural support include built-in overload protec- arrang
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COMPONENT ASSEMBLY/INSTALLATION Leg Assembly The legs are shipped loose and are to be field mounted as shown with the hardware provided. Secure each leg to drycooler frame at all four points shown using hardware provided Electrical service Inlet Outlet supply by others Models 069-491 Models 620 through 940 have 2 sets of connections on end of unit Figure 7 General arrangement diagram Optional dual pump Fill* system shown Typical rigging Expansion Drycooler coil tank field Drycooler Glyc
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APPLICATION/INSTALLATION GUIDELINES indoor unit and the drycooler is a Location Guidelines Piping Considerations two wire control interlock which is To ensure an adequate air supply, CAUTION: When using water field-connected when provided. locate drycoolers in a clean air under pressure to test the system area, away from loose dirt and for- for leaks, immediately charge the Glycol/Inhibitor Solution eign matter that may clog the coil. tested system with glycol. Com- The percentage of glycol
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PUMP PACKAGES & EXPANSION TANK - OPTIONS Figure 8 Pump package Figure 10 Expansion tank See 30-1/4" Note 1 (768.4mm) Pump discharge connections 19" (483mm) Pump suction connections Provided on dual pump package only Expansion Tank- (P/N 1C16717P1) This tank, included in a standard pump package, has an internal volume of 8.8 gal. (33 l) and a maximum pressure of 100 psi (690 kPa). Figure 9 Pump mounting This tank is sized for a typical open system with a fluid volume of less than 75 gal.
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SUPPLEMENTARY APPLICATION DATA Table 9 Room dew point temperatures Table 11 Volume in standard tube Dry bulb Wet bulb Rel. hum. Dew point* Type L copper tube °F (°C) °F (°C) % °F (°C) Diameter (in.) Volume 70 57.2 45 41.1 Outside Inside Gal/ft (L/m) 70 58.5 50 50.5 .50 0.430 0.0075 (0.09) 72 58.9 45 50.0 .625 0.545 0.0121 (0.15) 72 60.0 50 52.4 75 61.2 45 52.4 .75 0.666 0.0181 (0.22) 75 62.5 50 55.0 .875 0.785 0.0251 (0.31) * Minimum glycol temperature before condensation will occur 1.125 1.02
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HEAT REMOVAL/ENVIRONMENTAL CONTROL Drycoolers - 60 Hz GENERAL DATA Technical Support The Company Behind the Products United States With over a million installations around the globe, 1050 Dearborn Drive Liebert is the world leader in computer protection P.O. Box 29186 systems. Since its founding in 1965, Liebert has Columbus, OH 43229 developed a complete range of support and protection systems for sensitive electronics: Single-Phase UPS Environmental systemsclose-control air 800-543-2378 co
