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SPX Cooling Technologies SS-NC-08A manual

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Table of contents for the manual

  • Page 1

    / Mar le y NC Class Stainless Crossflow Cooling T ower / Pr od uct S pec ifica tio ns[...]

  • Page 2

    Specifications / Base Base 4 Thermal P erformance 4 P erformance W arranty 5 Design Loading 5 Construction 6 Mec hanical Equipment 7 Fill, Louvers and Drift Eliminator s 8 Hot W ater Distribution System 9 Casing, F an Dec k and Fan Cylinder 9 Access 1 0 Cold W ater Collection Basin 1 0 Specifications / Options Conv enience and Saf ety Options Guard[...]

  • Page 3

    Mar ley / NC Class Stainless Cooling T ower / 3 NC Class Stainless Steel towers are factory assembled, crossflo w cooling tow ers, designed to ser ve air conditioning and refrigeration systems as well as light to medium industrial process loads on clean water . The y ev olve from a factor y-assembled concept of to wers pioneered by Marle y some 50[...]

  • Page 4

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 4 1.0 Base: 1.1 Pro vide an induced draf t, crossflow type, factory assembled, film fill, industrial dut y , st ainless steel cooling tow er situated as shown on the plans. The limiting ov erall dimensions of the tower shall be _____ wide, _____ l[...]

  • Page 5

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 5 2.0 Ther mal P erfor mance and Efficiency: 2.1 The tow er shall be capable of cooling _____ m 3 /h of water from ____ °C to _____ °C at a design entering air wet- bulb temperature of _____ C and its thermal rating shall be Certified by the Coo[...]

  • Page 6

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 6 designed for 2.4kP a live load or a 91kg concentrated load. Guardrails, where specified, shall be capable of with- standing a 890N concentrated live load in any direction, and shall be designed in accordance with OSHA guidelines. 5.0 Constr ucti[...]

  • Page 7

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 7 5.3* The tow er shall include all design and material modifications necessar y to meet the fire rating requirements of Factory Mutual. The product proposed shall be listed in the FM Approval Guide, latest edition. *Standard on models NC8301 thru[...]

  • Page 8

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 8 LOUVER S DRIFT ELIMINA T OR separ ate from fill on some models FILL 7.0 Fill, Louvers and Dr ift Eliminators: 7.1 Fill shall be film t ype, thermof ormed of 0.40mm thic k PV C, with louvers formed as part of eac h fill sheet. Fill shall be susp[...]

  • Page 9

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 9 8.0 Hot W ater Distribution Syst em: 8.1 T wo st ainless steel open basins (one abov e eac h bank of fill) shall receive hot water piped to eac h cell of the tow er . These basins shall be inst alled and sealed at the factor y , and shall be equ[...]

  • Page 10

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Base 10 10.0 Access: 10.1 A large st ainless steel, rectangular access door shall be located on both end panels for entr y into the cold water basin. Doors shall provide access to the fan plenum area to facili- tate inspection and allow maintenance to [...]

  • Page 11

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 11 Conv enience and Saf ety Options Guardr ail and Ladder: 11.2 Add the following paragraph in the Access section: The top of the tow er shall be equipped with a sturdy guardrail, complete with kneerail and toeboard, designed according to OSHA [...]

  • Page 12

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 12 ACCESS DOOR PLA TFORM GU ARDRAIL LADDER LADDER EXTENSION[...]

  • Page 13

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 13 Access Door Platfor m: 11.2 Add the following paragraph in the Access section: There shall be an access platform at the base of the tow er extending from the vertical lad- der to the endwall access door . The platform shall be galvanized ste[...]

  • Page 14

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 14 Control Options Fan Motor Starter Control Panel: 6.4 Add the following paragraph in the Mechanical Equipment sec- tion: Each cell of the cooling to wer shall be equipped with a UL listed control system in a IP1 4 or IP56 out- door enclosure [...]

  • Page 15

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 15 Vibr ation Limit Switc h: 6.5 Add the following paragraph in the Mec hanical Equipment section: A single-pole, double-throw vibration limit switch in a IP56 housing shall be installed on the mec hanical equipment support for wiring into the [...]

  • Page 16

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 16 in quantities and locations as indicated on the drawings. An overflo w and drain connection shall be provided in eac h cell of the cooling tower . The basin floor shall slope tow ard the drain to allow complete flush out of debris and silt w[...]

  • Page 17

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 17 cold-water temperature. The application must be able to handle ver y cold water while VFD is in a by -pass mode. Operator controls shall be mounted on the front of the enclosure and shall consist of start and stop control, bypass/VFD selecti[...]

  • Page 18

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 18 shall be operated as a st and- alone sys- tem without the need for a BMS system. Operator controls shall be mounted on the front of the enclosure and shall consist of st art and stop control, bypass/ VFD selector switc h, Auto/Manual selecto[...]

  • Page 19

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 19 Inlet Flow Contr ol V alves: 8.2 : Add the following to the end of the paragraph: Heavy-duty flow -regulator valv es shall be provided at the hot water inlet connections. These valv es shall be disc-t ype, with cast iron bodies and st ainles[...]

  • Page 20

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 20 box whic h is self supporting . The inlet at tenuation will not be allow ed to impact the thermal performance ef fi- ciency of the basic tower configuration. Outlet Sound At tenuation 1.4 Add the following paragraph under Base: The cooling t[...]

  • Page 21

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 21 Ultra Low-Noise F an 1.4 Replace paragraph 6.1 with the fol- lowing: Fan(s) shall be propeller -type, incorporating wide-chord for ward- swept FRP blades and galvaniz ed hubs. Blades shall be individually adjustable. Maximum f an tip speed s[...]

  • Page 22

    Specifications Specification V alue Mar ley / NC Class Stainless Cooling T ower / Specifications: Options 22 ______ psf, as well as a ______ seismic load. The fan dec k and hot water basin cov ers shall be designed for 50 psf live load or a 200 lb. concentrated load. Guardrails, where specified, shall be capable of withst anding a 200 lb. con- cent[...]

  • Page 23

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  • Page 24

    In the interest of techno logical progr ess, all products are subject to design and/or material change without notice. ©2008 SPX Cooling T echnologies uk_SP EC- S S-N C -08A SPX C OO LIN G TEC H NO L O G I ES U K L TD. G R EGO RY’S BAN K WOR CESTE R WR3 8AB U N ITE D K I NG DO M +44 (0) 1905 7 20 200 info.uk@spx.com spxcooling.com[...]