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SPX Cooling Technologies Marley Sigma Steel manual

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Table of contents for the manual

  • Page 1

    / Mar le y Sigma St eel Cooling T ower / Engineer ing Data & Specifications[...]

  • Page 2

    [...]

  • Page 3

    Mar ley / Sigma St eel Cooling T ower / T able of Contents Engineer ing Data Sc hematic 6 Support 7 Concrete Basin 8 Piping 9 Environmental 1 0 Energy Management 1 1 Specifications / Base Base 12 Thermal P erformance 13 Construction 1 4 Fan Dec k and F an Cylinder 15 Mec hanical Equipment 15 Fill, Louvers and Drift Eliminator s 17 Hot W ater Distri[...]

  • Page 4

    [...]

  • Page 5

    Mar ley / Sigma St eel Cooling T ower / 5 only accomplish the specified thermal performance— but whic h will include normal operation- and mainte- nance-enhancing accessories and f eatures. It will also incorporate those standard materials whic h testing and experience has pro ven to pro vide best results in normal operating conditions. P ages 2[...]

  • Page 6

    Mar ley / Sigma St eel Cooling T ower / Engineer ing D ata : Schematic 6 Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative. The UPDA TE web-based selection sof tware —available at spxcooling.com—provides Sigma Steel model recommendations based on customer's specific design requiremen[...]

  • Page 7

    Mar ley / Sigma St eel Cooling T ower / Engineer ing D ata : Support 7 Plan A SP ACES AT 4'-0" = L 6" W OVERALL OF BASIN SUMP OVERFLOW AIR INLET F ACE AIR INLET F ACE CASED ENDW ALL F ACE CASED ENDW ALL F ACE PRIMARY SUPP ORT BEAM INTERMEDIA TE BEAM N O T E 1 Use this bulletin for preliminary layouts only . Obtain cur - rent drawings[...]

  • Page 8

    Mar ley / Sigma St eel Cooling T ower / Engineer ing D ata : Concret e Basin 8 Plan 6" MIN. 5" 6" MIN. 5" ANCHOR BOL TS (SEE NOTE 5) 6" MIN. 6" MIN. A SP ACES A T 4'-0" = L PER CELL CASED ENDW ALL F ACE CASED ENDW ALL F ACE AIR INLET F ACE AIR INLET F ACE SUMP W IN T O IN OF BASIN N O T E 1 Use this bulletin [...]

  • Page 9

    Mar ley / Sigma St eel Cooling T ower / Engineer ing D ata : Inlet Piping 9 C C COLUMN AND ANCHOR BOL T TYP . SINGLE CELL D TYP . MUL TICELL C L COLUMN AND ANCHOR BOL T C L F AN C L INLET C L INLET C L F AN C L F MIN REQUIRED CLEARANCE C L E G C OF FLANGE T O BASE OF T OWER COLUMNS (USE FOR ST A TIC LIFT) F AN F ACE OF A DIA INLET FLANGE MARLEY PIP[...]

  • Page 10

    Mar ley / Sigma St eel Cooling T ower / Engineer ing D ata: Envir onmental 10 Sound Control Sound produced by a Sigma Steel to wer operating in an un- obstructed en vironment will meet all but the most restrictive noise limitations—and will react fav orably to natural at tenu- ation. Where the tower has been siz ed to operate within an enclosure,[...]

  • Page 11

    Mar ley / Sigma St eel Cooling T ower / Engineer ing D ata: Energ y Management 11 Cooling tow ers are usually selected to produce a specific cold water temperat ure at the higher summertime wet-bulb temperatures. During the remainder of the y ear , the cooling tow er is capable of producing much colder w ater . Unless your system will benefit fro[...]

  • Page 12

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 12 1.0 Base: 1.1  F urnish andinst allan induced-draf t, crossflow -type, field-erected, steel- framed, PVC-fill, industrial-duty cooling tow er of _____ cell(s), as sho wn on Plans. The limiting ov erall dimensions of the tower sha[...]

  • Page 13

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 13 2.0 Ther mal P erfor mance: 2.1 The tow er shall be capable of cooling _____GPM of waterfrom ____°F to _____°F at adesign entering airwet- bulbtemperature of_____ °F . Thecool - ing to[...]

  • Page 14

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 14 3.0 Constr uction: 3.1 The tow er shall be capable of with- standing water having a pH of 6.5 to 8.0; a c hloride content (NaCl) up to 300 ppm; a sulfate content (SO 4 ) up to 250 ppm; a calcium content (CaCO 3 ) up to 50 0 ppm; silica (SiO 2 ) up to[...]

  • Page 15

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 15 4.0 F an Deck and F an Cylinder: 4.1 The fan dec k shall act as a working platform for maintenance personnel. It shall be fabricated of no less than 1 2 gauge steel, and shall be designed for a uniform live load of 60 psf . 4.2  Fancylinders[...]

  • Page 16

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 16 5.3 Motor shall be located outside the fan cylinder at the fan dec k, and shall be connected to the speed reducer by a tubular stainless steel, dynamically balanced driveshaf t equipped with neo- prene flexible coupling elements. 5.4 A galvaniz ed o[...]

  • Page 17

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 17 6.0 Fill, Louv ers and Drif t Eliminators: 6.1  Fillshall be lm-type, 1 5 milthick, thermoformed PV C, with louvers formedas partof eac h ll sheet.Fill shall be suspended from st ainless steel str[...]

  • Page 18

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 18 7.0 Hot W ater Distribution Syst em: 7.1 The mec hanical equipment support/ crossov er pipe shall deliver water to two open hot water basins per cell at the fan deck elev ation. W ater shall exit these basins to the fill by gravity through metering [...]

  • Page 19

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Base 19 9.2 The top of the tow er shall be equipped with a sturdy 42" high guardrail sys- tem, complete with top rails, interme- diate rails and toeboards, conforming to OSHA st andards. Guardrails and posts shall consist of 1 .66" O.D . x 1 5 gaug[...]

  • Page 20

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 20 Control Options Control Syst em: 5.7: Add the following paragraph in the Mechanical Equipment section: Eac h cell of the cooling tower shall be equipped with a UL listed control system in a NEMA 3R or 4X outdoor enclosure capable of controlling si[...]

  • Page 21

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 21 Basin Heaters: 10.2 Add the following paragraph in the Cold W ater Basin section: Provide a system of electric immersion heaters and controls for each cell of the tow er to prevent freezing of water in the collection basin during periods of shut- [...]

  • Page 22

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 22 temperature and cold-fluid temperature on t wo separate lines. The bypass shall include a complete magnetic bypass circuit and with capability to isolate the VFDwhen in thebypass mode. T ransfer to the bypass mode shall be ma[...]

  • Page 23

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 23 circuitwith capabilit yto isolate the VFD when in the bypass mode. T ransf er to the bypass mode shall be automatic in theeventof VFDfailure orforspecic trip conditions allowing safe transf er of uti[...]

  • Page 24

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 24 Conv enience and Saf ety Options Stairwa y: 9.3 Replace paragraph 9.3 with the fol- lowing: A 30" wide, 45° steel st air wa y with 8" rise and run, shall be provided at the tower endwall rising from grade (roof) to the fan dec k elev at[...]

  • Page 25

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 25 Oil Level Sight Glass: 5.4 Replace paragraph 5.4 with the fol- lowing: A galv anized oil gauge and drain line shall extend from the gear reducer to the vicinity of the motor , and shall be equipped with a bronze- bodied oil level sight glass. Misc[...]

  • Page 26

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 26 Low Noise T ow er: 1.1 Add the following at the end of this paragraph: The cooling tow er shall be quiet operating, and shall produce an ov erall level of sound no higher than ____ dBA at the critical location indicated on the Plans. ■ Sound pro[...]

  • Page 27

    Specifications Specification V alue Mar ley / Sigma St eel Cooling T ower / Specifications: Options 27 Service Lif e-Related Customization: ■ Some adver se water conditions, unsatisfactory air quality, and/or pro- cesses that produce corrosive contaminants, may dictate the use of stainless steel for materials of construction in the tower . Refer [...]

  • Page 28

    7 4 01 WEST 1 29 STRE ET OVER LAN D P AR K, KANSAS 6 621 3 U N ITE D ST A TES 913 6 64 7 400 spxcooling@spx.com spxcooling.com In the interest of techno logical progr ess, all products are subject to design and/or material change without notice. ©2008 SPX Cooling T ech nologies , Inc. Printed in USA | SSI G- TS-08A[...]