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Recold

JW Series Fluid Cooler

Engineering Data

Summary of content (12 pages)

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/ Recold ® JW Series Fluid Cooler / Engineering Data
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Recold / JW Series Fluid Cooler / Contents 2 Construction................................................................................................................ 3 Schematic.................................................................................................................... 4 Engineering Data......................................................................................................... 5 Freeze Protection.....................................................................
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Recold / JW Series Fluid Cooler / Construction 3 The JW Evaporative Fluid Cooler is a ruggedly built unit constructed to provide many years of durable, dependable service with minimal maintenance requirements. Quality materials and workmanship are a key factor in meeting this objective. FAN MOTORS Fan motors furnished as standard equipment are open drip-proof type suitable for outdoor service. Motors have a 1.15 service factor and are mounted on a heavy duty adjustable base located for easy access.
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Recold / JW Series Fluid Cooler / Schematic 4 A C ELIMINATOR ACCESS K ACCESS DOOR L L INLET OUTLET SPRAY HEADER CLEANOUT INLET CONNECTION G OUTLET CONNECTION EXTERNAL FLOAT BOX B F J 12" 7/8" MOUNTING HOLE (6) H 12" 2" LIFTING HOLE (4) D WATER SUPPLY Q 2" DRAIN AND OVERFLOW P Access Doors Dimensions Model Far Side Near Side Overflow Drain FPT A B C D F G H J K L Top Bottom Top Bottom P JW10 80" 76" 31" 84" 1 32 ⁄2" 1 19 ⁄2" — 6" 53" 1 13 ⁄2" 1 1 —
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Recold / JW Series Fluid Cooler / Engineering Data 5 Approximate Weight lb Model Fan Motor hp* Air Volume cfm Fan RPM Standard Fan Motor Frame Pump Motor hp Spray Water GPM Sump Heater kW shipping operating JW10A JW10B JW10C JW15B JW15C JW25A JW25B JW25C JW35A JW35B JW35C JW50A JW50B JW50C JW70B JW70C JW85B JW85C JW100B JW100C JW115B JW115C JW130B JW130C 2 2 3 5 5 5 5 71⁄2 71⁄2 10 10 15 15 15 20 25 30 30 30 30 40 40 50 50 5280 5150 5450 8500 8300 11700 11800 13000 19000 20000 19500 30200 2920
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Recold / JW Series Fluid Cooler / Freeze Protection For the most part, evaporative closed circuit coolers will be installed for operation on a year-round basis. Units installed in a cold climate must be provided with adequate freeze protection for both the recirculating water and the heat exchange coil for proper equipment operation and maintenance. RECIRCULATING WATER The operation of evaporative cooled equipment under approximately full load conditions will prevent freezing of the recirculated water.
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Recold / JW Series Fluid Cooler / Selection Procedure 7 Closed circuit cooler selections can easily be made by using the information on pages 6 through 11. The examples below demonstrate proper procedures for water and ethylene glycol solutions. Other fluids can be cooled, but since their heat transfer and flow characteristics may vary, please contact your local Recold sales representative for assistance.
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Recold / JW Series Fluid Cooler / Load Factors 8 TABLE NO. 2 60° WET BULB 4.8 4.5 4.3 4.0 3.8 3.6 3.5 3.3 3.2 3.0 2.9 2.8 2.7 2.6 2.6 2.5 2.4 2.3 2.3 2.2 2.1 2.1 12 6.0 5.6 5.3 5.0 4.7 4.5 4.2 4.0 3.9 3.7 3.6 3.6 3.3 3.2 3.1 3.0 3.0 2.8 2.7 2.6 2.6 2.5 2.4 2.4 14 6.4 6.0 5.7 5.4 5.0 4.8 4.5 4.3 4.1 4.0 3.9 3.8 3.6 3.4 3.4 3.2 3.2 3.1 3.0 2.9 2.8 2.8 2.7 2.6 16 6.7 6.4 6.0 5.7 5.3 5.1 4.9 4.6 4.5 4.3 4.1 4.0 3.9 3.7 3.6 3.5 3.5 3.3 3.2 3.2 3.1 3.0 2.9 2.8 18 7.2 6.7 6.3 6.0 5.6 5.4 5.1 4.9 4.7 4.6 4.
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Recold / JW Series Fluid Cooler / Load Factors 9 TABLE NO. 2 3.1 2.9 2.7 2.5 2.4 2.3 2.1 2.0 1.9 1.9 1.8 1.7 1.6 1.6 1.5 1.4 1.4 1.3 1.3 1.2 1.2 1.2 1.1 10 4.7 4.3 4.1 3.8 3.6 3.4 3.2 3.1 2.9 2.8 2.7 2.6 2.5 2.4 2.3 2.2 2.2 2.1 2.0 2.0 1.9 1.8 1.7 1.7 12 5.1 4.8 4.4 4.2 4.0 3.8 3.6 3.4 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.4 2.3 2.2 2.1 2.1 2.0 1.9 14 5.5 5.1 4.8 4.5 4.3 4.1 4.0 3.8 3.6 3.5 3.3 3.2 3.1 3.0 2.9 2.8 2.7 2.6 2.5 2.4 2.4 2.3 2.2 2.1 16 5.9 5.5 5.1 4.8 4.6 4.4 4.2 4.0 3.8 3.7 3.6 3.5 3.
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Recold / JW Series Fluid Cooler / Ratings 10 TABLE NO. 3: Selection Parameters Do not exceed the minimum and maximum flow rates given for each unit in column 2. Model JWH high flow rate units available only for models shown. Extrapolation of flow rating should not exceed the flow range printed for each unit. Model No.
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Recold / JW Series Fluid Cooler / Pressure Drop 11 TABLE NO. 4: Pressure Drop in PSI For feet of head, multiply by 2.31. GPM Model JW - JWL - JWH 10A 10 1.1 20 3.5 25 5.2 30 6.9 35 9.1 40 1.7 45 2.1 50 2.5 55 3.0 60 3.6 65 4.0 70 4.5 75 5.0 80 5.6 85 6.3 90 6.9 95 7.7 100 8.5 110 10.0 120 11.8 130 13.5 140 150 160 170 180 190 200 225 250 275 300 350 400 450 500 550 600 650 700 750 800 850 900 950 1000 1100 1200 1300 1400 1500 1600 1700 10B 10C 0.7 1.1 1.5 1.0 2.4 3.0 3.6 4.3 5.0 1.0 1.2 1.4 1.5 1.
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Recold / JW Series Fluid Cooler / Accessories 12 CAPACITY CONTROLS PUMP STRAINER Dual Fan Motors—The dual fan motor package is available as a proven energy saving capacity control option. It consists of furnishing a high efficiency motor, a 1200 RPM, low speed motor, two sets of drives and belts, extended fan shaft and motor bases on opposite sides of the blower. A UL control-starter panel is available as a completely wired package for one point connection.