LSWE Product Catalog - EVAPCO.com

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22 Part 1 – General 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this section. 1.2 SUMMARY: A. This Section includes factory assembled and tested, closed-circuit forced-draft cooling tower (also known as a closed circuit cooler). 1.3 SUBMITTALS A. General: Submit the following: 1. Certified drawings of the closed circuit cooler, sound data, recommended steel support indicating weight loadings, wiring diagrams, installation instructions, operation and maintenance instructions, and thermal performance guarantee by the manufacturer. 1.4 QUALITY ASSURANCE A. Verification of Performance: 1. Test and certify closed circuit cooler thermal performance according to CTI Standard 201. 2. Test and certify closed circuit cooler sound performance according to CTI ATC-128. 1.5 WARRANTY A. Motor/Drive System: Five (5) year comprehensive warranty against materials and workmanship including motor, fan, bearings, mechanical support, sheaves, bushings and belt. B. Unit: One (1) year from start-up, not to exceed eighteen (18) months from shipment on the unit. Part 2 – Products 2.1 MANUFACTURERS A. Manufactures: Subject to compliance with requirements, provide closed circuit cooler manufactured by one of the following: 1. EVAPCO, Inc. 2. Approved Substitute 2.2 MATERIALS A. Galvanized Sheet Steel casing and fan housing complying with ASTM A 653/A 653M and having G-235 designation. B. Optional Type 304 and/or 316 Stainless Steel as specified. 2.3 FORCED-DRAFT, CLOSED CIRCUIT COOLER A. Description: Factory assembled and tested, forced draft closed circuit cooler complete with heat transfer coil, fan(s), fan screens, accessories, and rigging supports. B. Closed Circuit Cooler Characteristics and Capacities: Refer to the Closed Circuit Cooler schedule. C. Fan(s): 1. Type and Material: forward curved, centrifugal of hot-dipped galvanized construction. The fans shall be factory installed, and statically and dynamically balanced for vibration free operation. 2. Fan Housing: The complete drive system, including the electric motor, belts, bearings, fan, and drives shall be completely enclosed in a protective housing which covers the drive system and provides sound reduction. 3. Maximum sound pressure level of ____dB(A) measured at 5 feet from the fan inlet during full speed operation in accordance with CTI Standard ATC-128. D. Water Distribution System: Non-corrosive materials. 1. Evenly distribute water over heat transfer coil with pressurized spray tree. a. Pipes: Schedule 40 PVC, Non-corrosive Materials b. Nozzles: Non-clogging, ABS Plastic, threaded into branch piping. 2. Maximum pressure at inlet shall be ____ psig. E. IBC Compliance: The unit structure shall be designed, analyzed, and constructed in accordance with the latest edition of the International Building Code (IBC) Regulations for seismic loads up to ____ g and wind loads up to ____ psf. SPECIFICATIONS F. Collection Basin Material: Type 304 Stainless Steel (standard LRWB, optional LSWE) or Heavy Gauge G-235 Galvanized Steel (standard LSWE, optional LRWB) for long life and durability: 1. Removable Type 304 Stainless Steel strainer with openings smaller than nozzle orifices. 2. Joints: Bolted and sealed watertight. 3. Overflow, Makeup and Drain connections: G-235 Galvanized Steel (MPT and FPT). G. Casing: Heavy Gauge G-235 Galvanized Steel or Type 304 Stainless Steel (Optional): 1. Casing panels shall totally encase all sides of the heat transfer surface to protect it from direct exposure to environmental elements. All galvanized steel panel edges shall be coated with a 95% pure zinc compound during fabrication. 2. Fasteners: Corrosion resistance equal to or better than materials being fastened. 3. Joints: Sealed watertight. 4. Welded Connections: Continuous and watertight H. Heat Transfer Coil: Heavy Gauge G-235 Galvanized Steel encased in a steel framework with the entire assembly hot-dip galvanized after construction or Type 304 Stainless Steel (Optional). The coil assembly shall be completely enclosed and protected from sunlight exposure, environmental elements and debris. The tubes shall be sloped for free drainage of the coil and designed for low pressure drop. The coil shall be pneumatically tested at 400 psig under water. The coil connections shall be Beveled for Weld or Flanged (Optional) or Grooved (Optional). I. Drift Eliminators: PVC, for long life and durability resistant to rot, decay and biological attack; formed, bonded together for strength and durability in block format for easy removal and replacement; self extinguishing with flame spread rating of 5 per ASTM E84- 81a; 0.001% drift rate. J. Water Level Control: Brass mechanical makeup water valve and plastic float with an adjustable linkage. K. Water Recirculation Pump: Close-coupled, centrifugal type with mechanical seal. The pump motor shall be ____ horsepower totally enclosed for outdoor service on ____ volts, ____ hertz, and ____ phase. 2.4 MOTORS AND DRIVES A. General requirements for motors are specified in Division 23 Section “Motors”. B. Enclosure Type: TEFC C. Fan Motor Speed: Premium Efficient VFD Duty (Option: 2-speed) D. Drive: Power Band Belt designed for 150% of the motor nameplate HP. 1. Belt: V-belt type neoprene. 2. Sheaves: Steel, taper lock design. 3. Bearings: Heavy duty, self-aligning bearings with extended grease lines and fittings. 4. Fan Shaft: Solid steel shaft (LRWB). Hollow shaft with forged bearing journals (LSWE). 5. Vibration Cutout Switch (Optional): Mechanical switch to deenergize fan motors if excessive vibration in NEMA 4 enclosure. 2.5 MAINTENANCE ACCESS A. Access Door: A circular access door shall be located above the basin to allow for easy access to the pan interior. B. Ladders (Optional): Aluminum, vertical complying with 29 CFR 1910.27. 2.6 SOUND ATTENUATION (OPTIONAL) A. Inlet Attenuation: Materials to be same as fan section. Baffled panels shall change the path of air entry and capture radiated noise. External belt adjustment and lubrication points shall be provided. B. Discharge Attenuation: Straight-sided discharge hood with insulated baffles to reduce the overall sound level of the discharge air. A large access panel to allow access to the water distribution system and drift eliminators shall be provided.
Selections for LSWE Closed Circuit Coolers are available from Evapco’s evapSelect Equipment Selection Program. Please contact your local sales representative for more information on the evapSelect program. Engineering Data & Dimensions LSWE Models 4-2F6 to 4-5J9 26-1/8 (1) ACCESS DOOR 1 MPT MAKE-UP 19-5/8 20-7/8 22-7/8 4 BFW FLUID IN 4 BFW FLUID OUT 2 FPT OVERFLOW FACE 2 M 2 MPT DRAIN 3-1/8 4' 3/4" 15 A 7 18-7/8 U E H Coil LSWE Model Number Heaviest Volume Gallons Conn. Operating Height Length Lower Upper Coil † Weights (lbs.) Fans Spray Pump Remote Sump Shipping Section* Operating HP CFM HP GPM (Gallons) Required** Size Weight (lbs.) H L E U A LSWE 4-2F6 2,360 1,330†† 3,290 3 10,200 3/4 120 33 80 4" 2,870 6' 10" 5' 11-7/8" 3' 7-1/2" 3' 2-1/2" 12" LSWE 4-2G6 2,370 1,340†† 3,300 5 12,100 3/4 120 33 80 4" 2,880 6' 10" 5' 11-7/8" 3' 7-1/2" 3' 2-1/2" 12" LSWE 4-2H6 2,420 1,390†† 3,350 7.5 13,900 3/4 120 33 80 4" 2,930 6' 10" 5' 11-7/8" 3' 7-1/2" 3' 2-1/2" 12" LSWE 4-3F6 2,720 1,690 3,770 3 10,000 3/4 120 47 80 4" 3,340 7' 5-1/2" 5' 11-7/8" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-3G6 2,730 1,700 3,780 5 11,900 3/4 120 47 80 4" 3,350 7' 5-1/2" 5' 11-7/8" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-3H6 2,780 1,750 3,830 7.5 13,600 3/4 120 47 80 4" 3,400 7' 5-1/2" 5' 11-7/8" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-3I6 2,800 1,770 3,850 10 15,000 3/4 120 47 80 4" 3,420 7' 5-1/2" 5' 11-7/8" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-4F6 3,070 2,040 4,230 3 9,800 3/4 120 60 80 4" 3,800 8' 1" 5' 11-7/8" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-4G6 3,080 2,050 4,240 5 11,700 3/4 120 60 80 4" 3,810 8' 1" 5' 11-7/8" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-4H6 3,130 2,100 4,290 7.5 13,400 3/4 120 60 80 4" 3,860 8' 1" 5' 11-7/8" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-4I6 3,150 2,120 4,310 10 14,700 3/4 120 60 80 4" 3,880 8' 1" 5' 11-7/8" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-5G6 3,440 2,410 4,710 5 11,400 3/4 120 74 80 4" 4,290 8' 8-1/2" 5' 11-7/8" 3' 7-1/2" 5' 1" 34-1/2" LSWE 4-5H6 3,490 2,460 4,760 7.5 13,100 3/4 120 74 80 4" 4,340 8' 8-1/2" 5' 11-7/8" 3' 7-1/2" 5' 1" 34-1/2" LSWE 4-5I6 3,510 2,480 4,780 10 14,400 3/4 120 74 80 4" 4,360 8' 8-1/2" 5' 11-7/8" 3' 7-1/2" 5' 1" 34-1/2" LSWE 4-3G9 3,750 2,370 5,380 5 15,600 1 180 68 120 6" 4,780 7' 5-1/2" 8' 11-1/4" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-3H9 3,800 2,420 5,380 7.5 17,800 1 180 68 120 6" 4,830 7' 5-1/2" 8' 11-1/4" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-3I9 3,820 2,440 5,400 10 19,600 1 180 68 120 6" 4,850 7' 5-1/2" 8' 11-1/4" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-3J9 3,940 2,560 5,520 15 22,500 1 180 68 120 6" 4,970 7' 5-1/2" 8' 11-1/4" 3' 7-1/2" 3' 10" 19-1/2" LSWE 4-4H9 4,310 2,930 6,060 7.5 17,500 1 180 89 120 6" 5,510 8' 1" 8' 11-1/4" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-4I9 4,330 2,950 6,080 10 19,200 1 180 89 120 6" 5,530 8' 1" 8' 11-1/4" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-4J9 4,450 3,070 6,200 15 22,000 1 180 89 120 6" 5,650 8' 1" 8' 11-1/4" 3' 7-1/2" 4' 5-1/2" 27" LSWE 4-5H9 4,840 3,460 6,770 7.5 17,100 1 180 109 120 6" 6,210 8' 8-1/2" 8' 11-1/4" 3' 7-1/2" 5' 1" 34-1/2" LSWE 4-5I9 4,860 3,480 6,790 10 18,800 1 180 109 120 6" 6,230 8' 8-1/2" 8' 11-1/4" 3' 7-1/2" 5' 1" 34-1/2" LSWE 4-5J9 4,980 3,600 6,910 15 21,600 1 180 109 120 6" 6,350 8' 8-1/2" 8' 11-1/4" 3' 7-1/2" 5' 1" 34-1/2" ▲ Dimensions▲ † Model Number will end in “-Z” for units with Series Flow piping configuration. Series Flow units may require additional coil connections and will require crossover piping. Model numbers will include "C" for units with Stainless Steel coil(s), "I" for units with Intake Attenuation, "D" for units with Discharge Attenuation, "F" for units with Full Sound Attenuation, "T" for units with a Tapered Discharge Hood, and "S" for units with an option that negates CTI certification. †† Model normally ships in one piece. * Heaviest section is the coil section. ** Gallons shown is water in suspension in unit and piping. Allow for additional water in bottom of remote sump to cover pump suction and strainer during operation (12” would normally be sufficient). ▲ When a remote sump arrangement is selected, the spray pump, suction strainer and associated piping are omitted; the unit is provided with an oversized outlet to facilitate drainage to the remote sump. ▲ Unit dimensions and coil connections may vary slightly from catalog. See factory certified prints for dimensions, quantity of coil connections, and piping configuration. Coil connections are 4” bevel for weld (BFW). Other connection types such as grooved for mechanical coupling or flanged are also available as options. 23 4' 3/4" H FACE 2 14 M 1/2 FPT VENT M L FACE 1 PLAN VIEW Note: The number of coil connections doubles when the flow rate exceeds 450 gpm on 4x6 and 4x9 models. This required option is referred to as the High Flow coil configuration. L FACE 1
Page 1 and 2: † LSWE † Mark owned by the Cool
Page 3 and 4: IBC Certification • Every unit ha
Page 5 and 6: IBC COMPLIANCE Wind Design The IBC
Page 7 and 8: IBC COMPLIANCE Wind Load Calculatio
Page 9 and 10: DESIGN FEATURES Stainless Steel Coi
Page 11 and 12: SPECIFIC DESIGN FEATURES LRWB Reduc
Page 13 and 14: PRODUCT APPLICATIONS Design EVAPCO
Page 15 and 16: FREEZE PROTECTION AND HEAT LOSS Hea
Page 17 and 18: OPTIONAL EQUIPMENT Pulse~Pure ® Wa
Page 19 and 20: SOUND REDUCING OPTIONS Sound Attenu
Page 21: DISCHARGE & INTAKE ATTENUATION DIME
Page 25 and 26: Selections for LSWE Closed Circuit

LSWE Product Catalog - EVAPCO.com

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