Manuale d’uso / di manutenzione del prodotto Marley MD del fabbricante SPX Cooling Technologies
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/ Mar le y MD Cooling T ower / Engineer ing Data & Specifications.
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Mar ley / MD Cooling T ower / T able of Contents Engineer ing Data Sc hematic 6 Support 22 Outlet Connection 24 Hoisting Info 25 Freez e Prevention 26 W ater Quality 27 Specifications / Base Base 28 T.
Mar ley / MD Cooling T ower / 4 ■ Water Distribution System Pressurized spray system distributes water evenly over the fill Low-clog polypropylene nozzles—delivers pr ecise distribution of water .
MD tow ers are galvaniz ed steel, f actor y assembled, counterflo 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 .
Mar ley / MD 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 MD model recommendations based on customer's specific design requirements.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 7 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current dra wings from your Marle y sales represent ative. All table dat a is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 8 H INS T ALLED HEIGHT A 35 MOT OR C L PLAN SIDE ELEVATION END ELEVATION 8" INLET C L 569 2578 2371 2794 140 M D 5 0 0 8 M U L T I C E L L Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 9 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current dra wings from your Marle y sales represent ative. All table dat a is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 10 M D 5 0 1 0 S I N G L E C E L L H A 35 8" INLET MOT OR C L PLAN SIDE ELEVATION END ELEVATION 569 2578 3651 140 Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 11 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current drawings from y our Marley sales representative. All table data is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 12 M D 5 0 1 0 M U L T I C E L L H A 35 8" INLET MOT OR C L C L PLAN SIDE ELEVATION END ELEVATION 569 2578 3651 3715 140 Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 13 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current drawings from y our Marley sales representative. All table data is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 14 H A 3607 3651 35 8" INLET ACCESS C L PLAN SIDE ELEVATION END ELEVATION 153 M D 5 0 1 6 S I N G L E C E L L Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 15 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current drawings from y our Marley sales representative. All table data is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 16 H A 3607 3651 3715 35 8" INLET ACCESS C L C L PLAN SIDE ELEVATION END ELEVATION 153 M D 5 0 1 6 T W O O R T H R E E C E L L Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 17 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current drawings from y our Marley sales representative. All table data is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 18 H A 3607 3651 3715 35 8" INLET ACCESS C L C L PLAN SIDE ELEVATION END ELEVATION 153 M D 5 0 1 6 F O U R O R M O R E C E L L S Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 19 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current drawings from y our Marley sales representative. All table data is per cell. 2 Last two c haracters of the model number indicate number of cells and cell configuration.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 20 A H 7366 7312 3715 35 8" INLET ACCESS C L C L PLAN SIDE ELEVATION END ELEVATION 153 M D 5 0 1 6 F O U R C E L L Q U A D Use this data for preliminary layouts only . Obtain current drawing from your Marley sales representative.
Mar ley / MD Cooling T ower / Engineer ing D ata : Schematic 21 N O T E 1 Use this bulletin for pr eliminary layouts only . Obtain current drawings from y our Marley sales representative. All table data is per cell. 2 Nominal tons are based upon 35°C HW , 29.
Mar ley / MD Cooling T ower / Engineer ing D ata: Support 22 D E E C L ANCHOR BOL T C L ANCHOR BOL T OVER ALL OF BASIN L C C L ANCHOR BOL T C L ANCHOR BOL T W OVER ALL WIDTH OF BASIN HOLES FOR M16 ANC.
Mar ley / MD Cooling T ower / Engineer ing D ata: Support 23 D F E E C L ANCHOR BOL T C L ANCHOR BOL T 21 21 OVER ALL LENGTH OF BASIN C L ANCHOR BOL T C L ANCHOR BOL T C C L ANCHOR BOL T C L ANCHOR BO.
Mar ley / MD Cooling T ower / Engineer ing D ata : Outlet Connection 24 A B C D C L T OWER PUMP SUCTION MAKEUP 2" NPTM MAKEUP AL TERNATE LOCA TION OVERFLOW 3" NPTF 89 SUCTION HOOD WELDING BE.
Mar ley / MD Cooling T ower / Engineer ing D ata : Hoisting 25 Model Base Module T op Module Width Sling Length Minimum W eight kg Width Sling Length Minimum W eight kg MD50 08 2.6m 3m 11 0 0 2.8m 3m 90 0 MD50 10 2.6m 4m 1350 2.6m 3m 1 050 MD50 16 3.7m 4m 1650 3.
Mar ley / MD Cooling T ower / Engineer ing D ata: Fr eeze Prev ention 26 When the ambient air temperature falls below 0°C, the water in a cooling tow er can freeze. Marle y T echnical Report #H-003 “Operating Cooling T ower s in Freezing W eather” describes how to prevent freezing during operation.
Mar ley / MD Cooling T ower / Engineer ing D ata: W ater Quality 27 The MD cooling tower can be a very ef fectiv e air washer . Atmospheric dust able to pass through the relatively small louv er openings will enter the recirculating water system.
Specifications Specification V alue Mar ley / MD Cooling T ower / Specifications: Base 28 1.0 Base: 1.1 F urnish and inst all an induced-draf t, counterflow -type, factory assembled, film fill, industrial duty , cooling tower . Unitshall consist of _____ cell(s),as shown on plans.
Specifications Specification V alue Mar ley / MD Cooling T ower / Specifications: Base 29 4.0 Design Loading: 4.1 The tow er and its components shall be designed to withst and a wind load of 1 .44kPa. The cooling tower shall be de- signed to withst and shipping and hoist- ing loads of 2g horizontal or 3g vertical.
Specifications Specification V alue Mar ley / MD Cooling T ower / Specifications: Base 30 shall be driven through a one-piece multi-groov e, solid bac k V -t ypebelt, sheav es (pulley s), and tapered roller bearings. Bearings shall be rated at an L 10 lif e of 1 00,0 00 hours, or greater .
Specifications Specification V alue Mar ley / MD Cooling T ower / Specifications: Base 31 7.0 Fill, Louvers and Dr ift Eliminators: 7.1 Fill shall be cross-corr ugated, counterflow film type, thermoformed from0.40mm thic k PV C. Fillshall be assembled into pac ks for ease of remov al and cleaning.
Specifications Specification V alue Mar ley / MD Cooling T ower / Specifications: Base 32 10.0 Access: 10.1 A large rect angular access door shall be located in the plenum on the motor side of the tow er .
Specifications Mar ley / MD Cooling T ower / Specifications: Options 33 Specification V alue Stainless Steel Options Stainless Steel Collection Basin: 11.1 Replace paragraph 1 1 .1 with the following: The collection basin shall be heavy-gauge Series 30 0 st ainless steel.
Specifications Mar ley / MD Cooling T ower / Specifications: Options 34 Specification V alue Conv enience and Saf ety Options Mechanical Access Platf orm: 10.
Specifications Mar ley / MD Cooling T ower / Specifications: Options 35 Specification V alue Control Options Fan Motor Starter Control Panel: 6.4 Add the following paragraph in the Mechanical Equipmen.
Specifications Mar ley / MD Cooling T ower / Specifications: Options 36 Specification V alue Vibr ation Limit Switc h: 6.5 Add the following paragraph in the Mec hanical Equipment section: A single-po.
Specifications Mar ley / MD Cooling T ower / Specifications: Options 37 Specification V alue of utilit y v oltage to the motor . Automatic bypass with an earth ground condition is not allowed. T he bypass contactor shall be cycled on and off while operating in bypass, to maint ain the set-point temperat ure of the cold water .
Specifications Mar ley / MD Cooling T ower / Specifications: Options 38 Specification V alue start and stopcontrol, bypass/VFDselec - tion, Auto/Manual selections, manual speed control.
Specifications Mar ley / MD Cooling T ower / Specifications: Options 39 Specification V alue ■ Sound produced by a standard MD tower operating in an unob- structed environment will meet all but the most restrictive noise limitations—and will react favorably to natural attenuation.
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 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.
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