SERIES 4HOO AQUATUWER
Contents
1. 70 5 24 5 49 5 73 18 1 83 2 29 2 69 3 07 3 41 3 73 4 32 4 85 5 10 5 33 18 1 93 2 38 2 79 3 16 3 51 3 83 441 4 94 5 19 5 43 70 F Wet Bulb Selection Factors 72 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 5 6 7 8 9 10 12 14 15 16 Range 6 4 56 5 15 5 66 6 13 6 55 6 95 7 65 8 28 8 56 8 84 4 75 5 33 5 85 6 31 6 74 7 13 7 84 846 875 H 4 14 4 71 5 21 5 66 6 08 6 46 7 15 7 76 8 05 8 32 4 33 4 90 5 40 5 85 6 26 6 65 7 34 7 95 8 23 8 50 8 3 80 4 35 4 83 5 28 5 68 6 06 6 73 7 33 7 61 7 88 3 99 4 53 5 02 5 46 5 87 6 24 6 92 7 52 7 80 8 06 9 3 51 4 04 4 52 495 5 34 5 71 6 37 6 97 7 24 7 50 3 69 4 23 470 5 13 5 53 5 90 6 56 7 15 7 43 7 69 10 3 25 3 77 4 24 466 5 05 5 41 6 06 6 65 6 92 7 17 344 3 96 4 43 4 85 5 24 5 60 6 25 6 83 7 10 7 36 12 2 84 3 34 3 79 4 19 4 57 4 91 5 55 6 11 6 38 6 63 3 03 3 53 3 97 4 38 4 76 5 10 5 74 6 30 6 56 6 81 14 2 51 2 98 3 42 3 82 4 18 4 52 5 13 5 69 5 94 6 19 2 70 3 18 3 61 4 01 4 37 471 5 32 5 87 6 13 6 38 15 2 37 2 85 3 27 3 66 4 02 4 35 4 96 5 50 5 76 6 00 2 56 3 04 3 46 3 85 4 21 4 54 5 14 5 69 5 94 6 19 16 2 25 2 7 313 3 51 3 86 4 19 4 79 5 33 5 58 5 83 244 2 90 3 32 3 70 4 05 4 38 4 98 5 52 5 77 6 01 18 2 02 248 2 88 3 26 3 60 3 92 4 51 5 04 5 28 5 52 2 22 267 307 3 45 3 79 4 11 4 70 5 22 5 47 5 71 Tower Selection Factors 8 73 F Wet Bulb Selection Factors 75 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 Approach 5 6 7 8 9 102. 71 7 39 7 99 8 26 8 53 9 4 08 4 61 5 08 5 51 5 91 6 27 6 94 7 53 7 80 8 06 9 4 17 470 5 18 5 61 6 00 6 37 7 03 7 62 7 89 8 15 10 3 83 4 34 4 81 5 23 5 62 5 98 6 63 7 21 7 48 7 73 10 3 92 4 44 4 90 5 32 5 71 6 07 6 72 7 30 7 57 7 83 12 342 3 91 4 36 476 5 14 5 48 6 11 6 68 6 94 7 19 12 3 51 4 01 4 45 4 86 5 23 5 58 6 21 6 77 7 03 7 28 14 3 09 3 57 4 00 4 39 4 75 5 09 5 70 6 25 6 51 6 75 14 3 19 3 67 4 09 449 4 85 5 18 5 79 6 34 6 60 6 84 15 2 95 3 42 3 84 4 23 4 59 4 92 5 52 6 07 6 32 6 56 15 3 05 3 52 3 94 4 33 4 68 5 01 5 62 6 16 6 41 6 65 16 2 83 329 3 70 4 08 4 44 4 76 5 36 5 90 6 15 6 39 16 2 92 3 38 3 80 4 18 4 53 4 86 5 46 5 99 6 24 6 48 18 2 60 3 05 3 46 3 83 4 17 4 49 5 07 5 60 5 85 6 08 18 2 70 3 15 3 56 3 93 4 27 4 59 5 17 5 69 5 94 6 17 78 F Wet Bulb Selection Factors 79 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 Approach 5 6 7 8 9 10 12 14 15 16 Range Range 6 5 32 5 90 6 41 6 88 7 30 7 69839 6 541 5 99 6 51 6 97 7 39 7 78 849 7 4 90 5 46 5 96 6 41 6 83 7 21 7 90 8 51 879 T 5 00 5 56 6 06 6 51 6 92 7 30 7 99 8 60 8 88 8 4 56 5 10 5 59 6 03 6 43 6 81 7 48 8 08 8 36 8 62 8 4 66 5 20 5 69 6 13 6 53 6 90 7 57 8 17 8 45 8 72 9 4 27 4 80 5 27 5 70 6 10 6 46 7 12 7 71 7 99 8 25 9 4 37 4 90 5 37 5 80 6 19 6 56 7 22 7 81 8 08 8 34 10 402 4 54 5 00 542 5 81 6 16 6 81 7 39 7 66 7 92 10 4 12 4 63 5 10 5 52 5 90 6 26 6 91 7 49 7 76 8 01 12 3 61 4 11 4 55 4 95 5 33 5 67 6 30 6 86 7 13 7 38 12 3 71 4 20 4 65 5 05 5 42 5 77
3. Or you may prefer a pre assembled submersible tank type heater which requires no tower modification and can plug into a standard grounded 3 prong 120V outlet The Incoloy heater element was chosen for its long life in submerged environments A built in thermostat senses water temperature and controls the supply of electricity to maintain proper water temperature A built in safety switch cuts off power whenever the element is exposed to air The element mounts in the tower basin on a stainless steel plate Any exposed piping that is still filled with water at shutdown including the makeup water line should be electrically traced and insulated by others B Indoor Tank Method In this type of system water flows from an indoor tank through the load system and back to the tower where it is cooled The cooled water flows by gravity from the tower to the tank located in a heated space At shutdown all exposed water drains Into the tank where it is safe from freezing The table on page 13 lists typical drain down capacities for all Aquatower models Although Marley does not produce tanks many of our representatives offer tanks supplied by reputable manufacturers The amount of water needed to successfully operate the system depends on the tower size GPM and the volume of water contained in the piping system to and from the tower You must select a tank large enough to contain those combined volumes plus a level sufficient to mai
4. at Anchor at Anchor 2 1114 3 4 2 9w 3 0 4811 4812 02mm 1016mm 851mm gi5mm inn 435 740 185 180 15 3 10 W 413 3 95 3 6 EK incidi 206mm 1264mm 1156mm 1067mm 98mm IW AMT SH 205 S Mw 41 3 0 y 3 6 EK 13mm de9TeSe 1206mm 1264mm 1156mm 1067mm 96mm Lin 1390 SH ns me 5 MW 419 5 014 3 6 3 canas 1816mm 1264mm 1765mm 1067mm 98mm n va Ze e a 511 4 5 6 5 9w 5 0 Es dimos 1816mm 1676mm 1765mm 1524mm 76mm 4419 290 cd SS 368 7T M Ww 5 6 7 9 V 5 0 3 ka acts 2426mm 1676mm 2375mm 1524mm 76mm 16mm 1805 3000 975 748 470 9 11 Ye 5 6 Eet 5 0 Es 840 Ke 3035mm 1676mm 2985mm 1524mm 76mm ies ted 1095 iiid Models with Vertical Discharge Hood Option 4851 4853 5 11 4 5 0 Es 1810 3360 840 700 515 4861 4862 7 11 W 5 0 3 DW 2180 4280 1070 745 515 4871 4872 9 11 Y 5 0 3 2685 5340 1335 1095 640 Use this bulletin for preliminary layouts only Obtain current drawings from your Marley sales representative or your local distributor Purchaser to provide tower supports complete with holes and bolts for anchorage All supports must be framed flush and level at top Maximum deflection to be 1 360th of span not to exceed yg 18mm Maximum weight occurs with basin full to overflow level Actual M operating weight varies with GPM and piping scheme but will always be less than shown here 4 Wind loads are based on 30 psf and are additive to operating loads Reactions due to wind loads
5. prong plug for connection to a standard 120V source One or more 1 5 kW elements provide protection at most ambient conditions The built in thermostat maintains 40 F water while the built in safety switch shuts off power if the heater element is not submerged Stainless Steel Construction All Aquatower models are available with stainless steel structure Or you can choose a galvanized tower with a stainless steel cold water collection basin on all models except 4810 You can even choose a fan with stainless steel blades Your Marley sales representative can help you choose the amount of Corrosion resistance necessary for your installation Vertical Discharge Hood This option is available on Models 4851 Control System and larger It provides vertical discharge ofthe air leaving the tower Hoods are galvanized steel They ship separately for installation by others A large access door provides entry to the fan and mechanical equipment Factory installed control center in NEMA 3R enclosure mounted on tower casing Complete with thermostat controller for single or two speed motors to maintain chosen cold water temperature m Tower Selection Factors How to select the appropriate Aquatower model 1 Subtract cold water temperature from hot water temperature to determine Cooling Range 2 Subtract design air wet bulb temperature from cold water temperature to determine Approach to Wet Bulb Sel
6. provide many years of service with minimal maintenance Every Aquatower cooling tower carries a full one year warranty The Aquatower you buy from us will work on your job or we ll make it right Your warranty includes thermal performance and every component of the tower The Marley warranty is your assurance of performance for a full year The Aquatower Advantage Proven Performance Don t rely on outside agencies with limited enforcement powers Marley stands by our responsibility for reliable thermal performance We designed it We rate it We guarantee it Induced Draft Design Save on fan power and avoid the water leaks typical in forced draft pressurized towers The fan will operate in a warm atmosphere even in winter so you ll never have to work on frozen mechanical equip ment Crossflow Design Save on pump power because you only pay to move the water to the top of the tower Gravity does the rest The mechanical equipment and water distribution system are out where you can easily maintain them All Season Reliability Aquatowers perform as specified in the heat of summer They respond well to energy management techniques in the spring and fall and they operate virtually ice free in the dead of winter Plus they offer simple maintenance all year long We guarantee it Proven Corrosion Protection Thousands of users over more than 40 years confirm the value of heavy galvanizing And Marley s G 235 is the most ef
7. 12 14 15 16 Range Range 6 4 84 542 5 94 6 41 6 83 7 22 7 93 8 55 884 6 5 03 5 61 6 13 6 59 7 02 741 8 11 874 7 4 43 4 99 5 49 5 94 6 36 6 74 7 43 8 04 8 32 8 59 7 4 62 5 18 5 68 6 13 6 54 6 93 7 62 8 20 8 51 8 78 8 4 08 4 63 5 12 5 56 5 96 6 34 7 01 7 61 7 89 8 16 8 4 27 4 82 5 30 5 75 6 15 6 52 7 20 7 80 8 08 8 34 9 3 79 4 32 4 80 5 23 5 62 5 99 6 65 7 25 7 52 7 78 9 3 98 4 51 4 99 5 42 5 81 6 18 6 84 7 43 7 71 7 97 10 3 54 4 06 4 52 4 94 5 33 5 69 6 34 6 93 7 20 7 45 10 3 73 425 4 71 5 13 5 52 5 88 6 53 7 11 7 38 7 64 12 3 13 3 62 4 07 4 48 4 85 5 20 5 83 6 39 6 66 6 91 12 3 32 3 82 4 26 4 67 5 04 5 39 6 02 6 58 6 84 7 10 14 2 80 3 28 3 71 4 10 4 47 4 80 5 42 5 97 6 22 6 47 14 2 99 3 47 3 90 4 29 4 66 4 99 5 61 6 16 6 41 6 66 15 2 66 3 13 3 56 3 94 4 30 4 63 5 24 5 78 6 04 6 28 15 2 85 3 32 3 75 413 4 49 4 82 5 43 5 97 6 22 6 47 16 2 53 3 00 3 42 3 80 4 15 4 48 5 08 5 61 5 87 6 11 16 2 73 3 19 3 61 3 99 4 34 4 67 5 27 5 80 6 05 6 29 18 2 31 2 76 3 17 3 54 3 88 4 21 4 79 5 32 5 56 5 80 18 2 51 2 96 3 36 3 73 4 08 4 40 4 98 5 51 5 75 5 99 76 F Wet Bulb Selection Factors 77 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 Approach 5 6 7 8 9 10 12 14 15 16 Range Range 6 513 5 71 6 22 6 69 7 11 7 50 821 883 6 5 22 5 80 6 32 6 78 7 21 7 60 8 30892 7 4 71 5 27 5 77 6 23 6 64 7 02 7 71 8 32 8 60 8 87 7 4 81 5 37 5 87 6 32 6 73 7 11 7 80 8 41 8 70 8 97 8 4 37 491 5 40 5 84 6 24 6 62 7 29 7 89 8 17 8 44 8 446 5 01 5 49 5 93 6 34 6
8. 34 5 93 6 46 6 71 6 95 18 3 00 3 44 3 85 4 21 4 56 4 87 5 45 5 98 6 22 6 46 18 3 19 3 64 4 04 4 41 4 75 5 07 5 64 6 17 6 41 6 64 Aquatower Model Selection The following chart defines the maximum cooling capacity in GPM for each Aquatower model at the Tower Selection Factor defining your design conditions of entering hot water leaving cold water and entering air wet bulb temperatures Select the model whose GPM capacity equals or exceeds the design requirement at your calculated Tower Selection Factor 1 Safe selections result from using the Tower Selection Factor column equal to or smaller than the factor calcu lated 2 Accurate selections result from mathematical interpola tion if necessary Model Selection Chart Model Capacity In GPM of Clear Water Selection Example Tower Selection Factor is 4 44 Design GPM is 325 Using the 4 0 column smaller than 4 44 the selection would be a Model 4871 However interpolating for a 4 44 factor between the 4 0 column 295 GPM and the 4 5 column 333 GPM reveals that the Model 4862 is capable of cooling 328 4 GPM at the design temperatures Note If GPM exceeds maximum model capacity divide into two or more towers Tower Selection Factor Model 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 4811 13 14 16 18 21 23 27 30 34 238 43 49 55 62 70 80 4812 19 21 24 27 31 35 40 45 51 57 04 73 82 90 Dr 90 4821 2 2 32 37 42 47 53 60 68 76 86
9. 4 2 52 2 96 3 35 3 71 4 05 4 67 5 22 5 48 5 73 14 2 13 2 62 3 05 3 44 3 81 4 15 4 76 5 31 5 57 5 82 15 1 90 2 37 2 80 3 19 3 55 3 88 449 5 04 5 29 5 54 15 1 99 2 47 2 89 3 28 3 64 3 97 4 58 5 13 5 38 5 63 16 1 77 2 24 2 66 3 04 3 40 3 73 4 33 4 87 5 12 5 36 16 1 87 2 33 2 75 3 14 349 3 82 4 42 4 96 5 21 5 45 18 1 55 2 00 2 41 2 79 3 13 3 45 4 04 4 57 4 82 5 06 18 1 64 2 10 2 51 2 88 3 22 3 55 4 13 4 66 4 91 5 15 68 F Wet Bulb Selection Factors 69 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 Approach 5 6 7 8 9 10 12 14 15 16 Range Range 6 4 38 4 96 5 48 5 94 6 37 6 76 7 47 8 09 8 38 8 65 6 447 5 05 5 57 6 04 6 46 6 85 7 56 8 18 8 47 8 75 7 3 96 4 52 5 03 5 48 5 89 6 28 6 97 7 58 7 86 8 13 T 4 05 4 62 5 12 5 57 5 99 6 37 7 06 7 67 7 95 8 22 8 3 61 4 16 4 65 5 09 5 50 5 87 6 55 7 15 7 43 7 69 8 3 70 4 25 4 74 5 18 5 59 5 96 6 64 7 24 7 52 7 79 9 3 32 3 85 4 33 4 76 5 16 5 52 6 19 6 78 7 06 7 32 9 3 41 3 95 442 4 85 5 25 5 62 6 28 6 87 7 15 7 41 10 3 07 3 59 4 05 4 48 4 86 5 22 5 88 6 46 6 73 6 99 10 3 16 3 68 4 15 4 57 4 96 5 32 5 97 6 55 6 82 7 08 12 2 65 3 15 3 60 4 00 4 38 4 73 5 36 5 93 6 19 6 44 12 2 74 3 24 3 69 4 10 4 47 4 82 5 45 6 02 6 28 6 54 14 2 32 2 80 3 24 3 63 3 99 4 33 4 95 5 50 5 76 6 00 14 242 2 90 3 33 3 72 4 09 4 43 5 04 5 59 5 85 6 10 15 2 18 2 66 3 08 3 47 3 83 4 16 4 77 5 32 5 57 5 81 15 2 28 2 75 3 18 3 56 3 92 4 26 4 86 5 41 5 66 5 91 16 2 06 2 52 2 94 3 32 3 68 4 01 4 61 5 15 5 40 5 64 16 2 15 262 3 03 342 3 77 4 10 4
10. 6 40 6 96 7 22 7 47 14 3 29 3 76 419 4 58 4 94 5 28 5 89 6 44 6 69 6 94 14 3 38 3 86 4 29 4 68 5 04 5 37 5 98 6 53 6 79 7 03 15 3 15 3 62 4 04 4 42 4 78 5 11 5 71 6 25 6 51 6 75 15 3 24 3 71 4 13 4 52 4 87 5 20 5 81 6 35 6 60 6 84 16 3 02 3 48 3 90 4 28 4 63 4 95 5 55 6 09 6 34 6 58 16 3 12 3 58 3 99 4 37 472 5 05 5 65 6 18 6 43 6 67 18 2 80 3 25 3 65 4 02 4 36 4 68 5 26 5 79 6 03 6 27 18 2 90 3 35 3 75 412 4 46 4 78 5 36 5 88 6 13 6 36 eu 80 F Wet Bulb Selection Factors 82 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 Approach 5 6 7 8 9 10 12 14 15 16 Range Range 6 5 51 6 00 6 60 7 06 7 49 7 88 858 6 5 70 6 28 6 79 7 25 7 68 8 07 8 77 m v 5 09 5 66 6 15 6 60 7 02 7 40 8 09 8 70 898 7 5 29 5 85 6 34 6 79 7 21 7 59 8 27 888 8 4 75 5 30 5 78 6 22 6 62 7 00 7 67 8 27 8 54 8 81 8 4 95 5 49 5 97 6 41 6 81 7 19 7 86 8 46 8 73 9 00 9 4 46 4 99 5 47 5 89 6 29 6 65 7 31 7 90 8 17 8 43 9 4 66 5 19 5 66 6 09 6 48 6 84 7 50 8 09 8 36 8 62 10 4 21 473 5 19 5 61 6 00 6 36 7 00 7 58 7 85 8 11 10 4 41 4 92 5 39 5 80 6 19 6 55 7 19 7 77 8 04 8 30 12 3 81 4 30 4 74 5 15 5 52 5 86 6 49 7 05 7 31 7 56 12 4 00 4 49 4 94 5 34 5 71 6 05 6 68 7 24 7 50 7 75 14 3 48 3 96 4 38 4 77 5 13 5 47 6 08 6 63 6 88 7 13 14 3 68 4 15 4 58 4 97 5 33 5 66 6 27 6 82 7 07 7 31 15 3 34 3 81 4 23 4 62 4 97 5 30 5 90 6 44 6 69 6 94 15 3 54 401 4 43 4 81 5 16 5 49 6 09 6 63 6 88 7 12 16 3 22 3 68 4 09 4 47 4 82 5 15 5 74 6 27 6 52 6 76 16 3 41 3 87 4 29 4 66 5 01 5
11. 97 110 124 140 150 4822 31 36 40 346 52 59 66 75 85 2096 108 122 138 150 150 150 4831 38 43 49 56 63 71 80 290 101 113 127 142 159 178 199 223 4832 50 57 65 73 83 94 106 120 135 152 172 193 217 225 225 225 4841 63 71 81 92 104 117 133 150 169 191 215 242 272 307 346 350 4842 75 85 97 110 124 141 159 180 203 229 258 291 328 350 350 350 4851 99 111 125 141 159 178 200 225 252 282 316 352 392 435 482 533 4852 111 125 141 159 179 202 227 255 286 320 358 400 446 495 549 570 4853 124 139 157 177 200 225 253 285 320 359 402 450 503 561 570 570 4861 142 160 181 204 230 259 292 330 373 421 475 535 602 675 750 750 4862 161 182 205 232 261 295 333 375 423 476 537 604 679 750 750 750 4871 207 234 264 297 335 378 426 480 541 608 684 768 861 900 900 900 4872 227 256 289 326 367 414 466 525 591 666 749 842 900 900 900 900 Maximum design water flow rate Schematic I9 your local distributor if this clearance is impractical for your job Vertical discharge hoods are not available on these models Motors less than 1 hp are 115 230 volt single phase TENV 1 hp through 10 hp motors are 230 460 volt 3 phase TEFC See page 6 for optional motor sizes on Models 4812 through 4831 oox D f W TOWER INLET E INLETPIPING A p MOTORE VERTICAL
12. BY OTHERS __ piscHarce 1 h OPTION F T i f 1 Pe H H TOWER COLLECTION BASIN A TOWI ITLET EES BOTTOM OUTLET pE AIR INLET ELEVATION SIDE ELEVATION Piping Tower Nominall Motor Connections BEIS w H A 5 c2 s P we outlet 6 A811 10 2 11 wh 4 2 5 33 1 3 0 6 2d Eus 4 314 W 2 oF 4812 15 902mm 1292mm 1610mm 402mm 175mm 610mm sem 1 4821 20 znw sow 7 4 1 5 ae am 8 6 5 1 4822 25 1206mm 1534mm 2248mm 432mm 241mm 1219mm 203mm 1956mm 1 note 3 4833 30 gaw sow 7T 4w 15 ae 4 0 DN 6 5 3 a ae 4832 40 206mm 1543mm 2248mm 432mm 241mm 1219mm 203mm 1956mm 2 4843 50 511w 54 Aner 1 5 9w 50 DN 6 5 2 4842 eo 816mm 1549mm 224mm 432mm zunn 1524mm 209mm 1956mm 3 4851 75 2 aao es Sue saw so 20 nw em 10 8 ow 7 309 Es 1816mm 1972mm 2743mm 610mm 292mm 1829mm 3251mm 235mm 2403mm 4853 95 5 486 110 7 11 w esw 9 0 2 0 nw 7 0 10 8 DEN raos 5 e eMe 4862 125 2426mm 975mm 2743mm egen 282mm zisamm zen 235mm 249mm 7y 4871 160 gw 661 gaw vare mm ag 10 11 m Bier vew 7 wes 175 3035mm 1984mm 2053mm semm 292mm 2743mm 395mm 235mm 2610mm 10 1 Nominal tons are based upon 95 F HW 85 F CW 78 F WB and 5 Motor and belt guard ship uninstalled Installation by others 3 GPM Ton 6 Outlet sizes shown are side outlets All models except 4811 2 Minimum clearance for adeq
13. DEBMNE Series 4800 AounrowER Steel Crossflow Cooling Tower AUR Al Marley The Marley Difference Today s Aquatower may be the most space energy efficient cooling tower available Your needs have dictated constant technological improvement Thousands of Aquatower users enjoy the benefits of eight major redesigns and dozens of minor improvements in the past 40 years For example PVC film type fill enables the Aquatower to reject more heat per unit size We also put the air inlet louvers and drift eliminators right on the fill sheets This new arrangement saves you fan horsepower by improving airflow through the tower The 4800 Aquatower is a maintenance delight You ll appreciate the way the Aquatower series simplifies maintenance No hidden spray systems tiny nozzles or enclosed basins here You can easily replace and align V belts from outside the tower You won t have the chore and expense that goes with high horsepower blower fan towers All primary components of the Aquatower are open to view You can easily remove any debris from the upper basin or nozzles while the tower is in operation Heavy mill galvanizing on all steel components prevents base metal corrosion You won t have to worry about paint chips clogging your strainers and nozzles because there is no paint to flake off Heavy galvanizing also protects much better than paint alone Above all the Aquatower is readily available You won t have to wait ar
14. M Reciprocating amp screw type 200 hp and less 622 hr 065 20 Centrifugal 250 hp and above 560 hr 055 20 Plastic Injection Machines per oz capacity 125 min 1 5 10 Hydraulic Oil Cooling 2545 hr BHP 51 BHP 10 Welding Tip Cooling 84 min avg 1 0 10 Note When possible determine actual heat load and water quantity to be circulated and apply in the following formula Cooling Range Heat Load Btu min GPM x 8 33 Where 8 33 Pounds per gallon of water Cooling Range Difference between hot water entering tower and cold water leaving tower F 14 B Applications Requiring System Modifications or Alternative Cooling Tower Selections Certain types of applications are incompatible with any galvanized steel cooling tower with PVC film type fill whether Series 4800 Aquatower or a competitive tower of similar manufacture Some of these applications which call for either system modifications or an alternative tower design are Water temperatures exceeding 125 F potential corrosion of galvanized surfaces is accelerated and service life of PVC may be reduced Use either a cold water bypass or an intermediate heat exchanger between the load and the tower to limit hot water temperature Highly corrosive environment typified by proximity to bodies of salt water presence of corrosive vapors as in a chemical or steel plant or the presence of unusually dense air pollution in the form of SOx hydrogen sulf
15. dissipation of heat Some common applications include e Condenser water service for air conditioning and refrigera tion systems Jacket water cooling for engines and air compressors Chemical and industrial processes Batch cooling Typical Equipment Heat Loads Welder cooling Plastic industry processes Dairy citrus and other food industry processing where barometric condensers are not in use The table below will help you determine the heat load and therefore the cooling tower capacity you ll need for your duty If you don t find your application below or if you need more specific help contact your Marley sales representative Type of Equipment Btu GPM Range F Air Conditioning or Refrigeration per Ton per Ton Electric motor driven compressor 15 000 nr 15 3 20 10 Steam turbine driven compressor 30 000 hr 2 3 30 20 Absorption machine Single Stage steam fired 30 000 hr 3 33 18 Absorption machine Two Stage gas fired 22 500 hr 3 45 15 10 Diesel Engine Jacket Water amp Lube Oil per BHP per BHP Four cycle supercharged 2600 hr 26 20 Four cycle non supercharged 3000 hr 20 20 Natural Gas Engine Jacket Water amp Lube Oil per BHP per BHP Four cycle engine 4500 hr 45 20 Two cycle engine 4000 hr A0 20 Electric Motor Driven Air Compressors per BHP per BHP Reciprocating amp screw type 200 hp and less 2800 hr 28 20 Centrifugal 250 hp and above 2800 hr 28 20 per CFM per CF
16. ection example Select model to cool 325 GPM of water from of 76 1 101 to 85 at an entering air wet bulb temperature Cooling Range is 16 101 85 2 Approach to Wet Bulb is 9 85 76 3 SE Ce Ge appropriate for your design air wet bulb 3 76 F Wet Bulb tabulation is on Page 8 4 On the line for your calculated Range proceed right to the S AS Bac and SY approach Tower Selection column for your calculated Approach and read Tower us Selection Factor Interpolate mathematically if 5 Proceed to Page 9 necessary 5 Turn to Model Selection Chart on Page 9 Note All temperatures shown are degrees Fahrenheit 65 F Wet Bulb Selection Factors 66 F Wet Bulb Selection Factors Approach 5 6 7 8 9 10 12 14 15 16 Approach 5 6 7 8 9 10 12 14 15 16 Range Range 6 4 10 4 69 5 21 5 67 6 10 6 49 7 20 7 82 8 11 8 38 6 4 19 4 78 5 30 5 76 6 19 6 58 7 29 7 91 8 20 8 47 7 3 68 4 25 4 75 5 21 5 62 6 00 6 69 7 31 7 59 7 86 7 3 77 4 34 4 84 5 30 5 71 6 09 6 79 7 40 7 68 7 95 8 3 33 3 88 4 37 4 82 5 22 5 60 6 27 6 88 7 15 7 42 8 3 43 3 98 446 4 91 5 31 5 69 6 36 6 97 7 24 7 51 9 3 04 3 57 4 05 4 48 4 88 525 5 91 6 51 6 78 7 04 9 3 13 3 67 4 14 4 58 4 97 5 34 6 01 6 60 6 87 7 13 10 2 79 3 81 3 77 4 20 4 59 4 95 5 60 6 18 6 46 6 71 10 2 88 3 40 3 87 4 29 4 68 5 04 5 69 6 28 6 55 6 81 12 2 37 2 87 3 32 3 73 4 10 4 45 5 08 5 65 5 91 6 17 12 246 2 96 3 41 3 82 4 19 4 54 5 18 5 74 6 01 6 26 14 2 0
17. emarks Single Phase In lieu of the 3 phase 1 hp motors listed Component Standard heater components consist of 3 Motors on page 10 Models 4812 through 4831 Basin Heaters or 5 kW 3 phase 460 volt shielded are available with single phase hp 115 230 volt 1800 RPM TENV motors Special Motors Two speed 1800 900 RPM motors are readily available in 7 5 and larger hp s as used on Models 4862 4871 and 4872 Although they are also available for the smaller sizes the effect upon lead time can be significant and the return on investment is relatively small Field Assembly Where unique space restrictions or rigging immersion heater solid state circuitry for cut off at low water level or high temperature a control probe to monitor basin water temperature and water level and a magnetic contactor all housed in a weatherproof enclosure Components are shipped separately for installation and wiring by others Designed to prevent sump freezing during shutdown periods in winter operation Unnecessary if you use an indoor tank Special heater characteristics result in extended lead times conditions demand Aquatowers can be shipped ready for field assembly by others Complete step by step assembly instructions are provided Pre assembled Basin Heaters Tank type submersible heaters are available for all models No tower modifications are necessary and heater includes a 6 foot electrical cord with grounded 3
18. ets spilling out of the basin and helps provide uniform water assuring proper heat transfer throughout wide variations in distribution Water then flows by gravity from the basin through airflow Users find this fill operates ice free even in extremely nozzles to the fill cold weather The thermoformed 15 mil 015 thick PVC fill sheets withstand hot water temperatures as high as 125 F Fill sheets are immune to biological and corrosive decay and their flame spread rating is less than 25 per ASTM E 84 Galvanized structural tubes support and stabilize the fill They also hold the bottom of the fill sheets above the cold water basin floor to simplify basin cleaning Removable 1 x 1 mesh galvanized air inlet screens keep larger airborne trash out of the collection basin and fill area E Eliminator air seal removed showing distribution area above fill Hot water distribution basin covers are provided as standard equipment to keep the distribution basin free from airborne debris and to reduce the likelihood of biological growth All Aquatowers use Marley Spiral Target nozzles These inert polypropylene nozzles are evenly spaced thoughout the distribution basin to assure uniform water distribution over all portions of the fill Their large openings resist clogging Man Nozzles are easy to remove and replace if you ever want to change the design water flow rate Cold Water Collection Basin The Aquatower s collection basin reduces operatin
19. exceed those resulting from seismic loads based on UBC Zone 4 5 Consult your Marley application engineer if tower is to be supported directly on vibration isolators Basin modifications may be necessary Freeze Prevention When the ambient air temperature falls below 32 F the water in a cooling tower can freeze Marley Technical Report 4H 003 Operating Cooling Towers in Freezing Weather describes how to prevent freezing during operation Ask your Marley sales representative for a copy Water collects In the cold water basin during shutdowns and may freeze solid You can prevent freezing by adding heat to the water left in the tower Or you can drain the tower and all exposed piping at shutdown m Electric Basin Heaters Choose from two types of automatic basin heater systems based on your site conditions and preferences You may choose a heater system consisting of these components shipped separately for installation by others Stainless steel electric immersion heater element s Threaded couplings are provided for installation e NEMA 4 enclosure containing these components Magnetic contactor to energize heater Transformer to convert power supply to 24 volts for control circuit Solid state circuit board for heater control and low water cutoff Enclosure may be mounted on the side of the tower Control probe to monitor water temperature and water level Threaded couplings are provided for installation
20. fective galvanizing used in the industry PVC Film Fill with Integral Drift Eliminators and Louvers If you ve ever had to replace deteriorated eliminators or louvers you ll appreciate this advantage Now those components are molded right in the PVC fill sheets Integral honeycomb louvers keep the circulating water inside your tower and off your roof And the fill in every Series 4800 Aquatower is approved by Factory Mutual for use without sprinklers Select Your Aquatower From This Bulletin The tables on pages 7 through 9 should be adequate for almost all your requirements If available space is a problem or if you run into some unusual operating requirements we ll be glad to help Simple Flexible Installation Just mount the motor belts and belt guard install the outlet connection that suits your needs both side suction and bottom outlet are provided complete with screens and adjust the float valve Attach air inlet screens on models 4851 and larger and your Aquatower is ready for operation Construction and Components m Bi Water Distribution System W Fill Louvers Drift Eliminators Warm water flows through external piping not included Fill sheets include integral louvers and drift eliminators with the tower into a splash box chamber at the top of the designed to minimize resistance to airflow This patented Aquatower A splash box prevents the incoming water from arrangement prevents water from escaping the fill she
21. ffective consistent water treatment program is required Simple blowdown may be adequate to control corrosion and scale but biological contamination can only be controlled with biocides Most systems can be successfully treated with a MARLEYOZONE System Not only is MARLEYOZONE an excellent biocide it can also be utilized to control corrosion and scale This usually removes the requirement for other chemical feed systems In many installations there is the potential for significant water savings For complete information contact your local Marley sales representative An acceptable water treatment program must be compatible with the variety of materials incorporated in a cooling tower ideally the pH of the circulating water should fall between 6 5 and 8 0 Batch feeding of chemicals directly into the cooling tower is not a good practice since localized damage to the tower is possible Specific startup Instructions and additional water quality recommendations can be found in the Aquatower User Manual which accompanies the tower and also is available from your local Marley sales representative For complete water treatment recommendations consult a competent qualified water treatment supplier Specifications Base Furnish and install an induced draft crossflow factory assembled steel cooling tower of cell s as shown on plans Tower shall be similar and equal in all respects to Marley Series 4800 Aquatower Model Tower mu
22. g weight simplifies basin cleaning and assures proper outflow Water flows from the elevated area under the fill into the basin s rear depressed section where side suction piping connects A bottom outlet is also available for gravity flow applications Standard equipment on each tower basin includes a screened suction connection a threaded overflow connection a threaded and plugged drain connection and a float operated make up valve Models 4821 through 4872 also include a bottom outlet conforming to 125 flange specification See page 13 for sizes A blank cover plate is Spiral target distribution nozzle provided to seal the outlet connection not used i Mechanical Equipment Belt driven propeller fans insure design airflow at minimum horsepower Fans on Model 4810 thru 4840 are supported by grease lubricated pillow block bearings in a unitized assembly with remote grease zerks Models 4850 thru 4870 use an oil lubricated tapered roller bearing assembly with remote oil reservoir For ease of maintenance all drive components are accessible from outside the tower Fan and fan guard Guard is easily removed for access to fan and drive belts Fan drive motors are TEFC may be TENV on model 4811 designed specifically for cooling tower use Horsepowers and electrical characteristics appear in the table on page 10 Other types of motors are available Typical options appear under Optional Accessories on page 6 A Cau
23. ide H5S or potentially corrosive particulates While a galvanized tower may function effectively in these types of environments an alternative selection constructed of corrosion resistant materials offers even longer service life Ethylene glycol content can plug fill passages as slime and algae accumulate to feed on the available organic materials An intermediate heat exchanger or an alternative splash fill Marley tower selection will solve the problem P Alternate Material Selections In addition to galvanized steel Marley offers stainless steel or fiberglass to meet the special demands of specific applications Stainless steel construction you may choose stainless for all or part of your Series 4800 Aquatower See page 6 for more information Series 3800 Aquatower fiberglass construction assures long service life in virtually any environment One year full product warranty on all components Efficient PVC film type fill For additional information on these products and for application assistance with whichever Marley product you choose consult your local Marley sales representative If we can help in any way feel free to call us To find the Marley representative nearest you call 913 664 7400 or check the internet at www marleyct com 15 B Water Treatment To control the buildup of dissolved solids resulting from water evaporation as well as airborne impurities and biological contaminants including Legionella an e
24. ithout notice 2000 Marley Cooling Tower Printed in USA AQ 00A Fill Louvers and Drift Eliminator Fill shall be film type thermoformed PVC with louvers and drift eliminator formed as part of each fill sheet Fill shall be suspended from hot dip galvanized structural tubing supported from the upper tower structure and shall be elevated above the floor of the cold water basin to facilitate cleaning Air inlet faces of the tower shall be free of water splash out Guaranteed drift losses shall not exceed 0 005 of the design GPM Fill louver eliminator system must be approved by Factory Mutual Research Corporation for use in factory assembled cooling towers and must be listed in the Factory Mutual Approval guide Hot Water Distribution System An open basin above the fill bank shall receive hot water piped to each cell of the tower The basins shall be equipped with removable covers to keep out debris This basin shall be installed and sealed at the factory Water shall enter the basin through a removable wave suppressor splash box The basin shall be no less than 6 deep to provide adequate freeboard against overflow and splash out Removable and replaceable polypropylene nozzles installed in the floor of the basin shall provide full coverage of the fill by gravity flow Nozzles must all have the same orifice size and be spaced symmetrically in both longitudinal and transverse directions Cold Water Basin and Accessories The cold
25. ntain a flooded suction on your pump Control makeup water according to the level where the tank stabilizes during operation You should always use a bottom outlet for this type of piping system The following table lists the flow capacities for bottom outlets 410 F Ambient 10 F Ambient Reqd Tank Component Reqd Tank Component kW Heater Heater kw Heater Heater ose t5kW akw 15kw akw 0 93 1 5 kW 3kW 147 15kW 8kW im 093 tSxW akw 147 t5KW aw 20 1 39 15kW 3kw 2 19 15kW 3kW ze 20 191 agew 3 W 800 asp Se 20 3e 2 53 15kW 3 KW 4 00 145kW 4 5 kW 20 3e 3 15 15kW 45KW 4 97 4 5 kW 6 kW 1 Required kW is the amount of heat needed to maintain 40 F basin water temperature at the indicated ambient air temperature 2 Tank heaters shown are 120 volts single phase 3 Component heaters shown are 480 volts three phase Options or special heater selections may add several weeks to delivery 4 Heaters do not operate continuously Heaters cycle on and off automatically as basin water temperature dictates 5 Contact your Marley sales representative for selections appropriate for other ambient conditions than those shown here 12 e Drain Down Capacity Field Assembly E Field Assembly If you choose to assemble your Aquatower at the job site your Aquatower will be shipped unassembled with complete assembly instruction
26. ound or accept second best when you need a cooling tower We maintain an impressive stock of completed towers at our own plants A growing number of local distributors can draw from that stock Contact your local distributor or Marley representative They ll be glad to help you choose the proper model for your needs They can also help you with your layout and piping The Aquatower has inspired many imitators Only Marley can offer you the original You ll enjoy single source responsibility and reliability because we design and manufacture virtually all major cooling tower components All Marley components are designed and selected to be a part of an integrated system For example the spray pattern from nozzles and the pressure drop through drift eliminators both affect a fill s heat transfer capacity So we include that impact in our thermal analysis Drift eliminators must be effective at the air velocities where fill is most efficient So we ve carefully designed both components to work together efficiently How many other cooling tower companies can offer you this assurance They may use Brand A nozzles with Brand B fill and Brand C drift eliminators When they all come together the whole may be less than the sum of the parts Our total system approach assures that all the parts work together to provide you the greatest total performance And because we design specifically for cooling towers all our components will
27. s Made Range of Tower Maximum Drain Down Design GPM gallons 12 26 25 4811 27 45 27 4812 46 65 28 66 90 29 4821 18 36 43 4822 37 63 46 4831 64 119 51 MOS 120 225 57 28 56 67 4841 57 99 72 4842 100 187 79 188 350 89 55 113 131 ech 114 200 142 4853 201 375 158 376 625 177 75 155 177 4861 156 270 191 4862 271 510 216 511 50 240 95 195 230 4871 196 285 244 4872 286 490 268 491 900 306 Volumes shown are maximums for the GPM ranges indicated Actual volumes will usually be less Contact your local Marley sales representative for more specific information Bottom O P Outlet Diameter Tower Model e 8 4821 4822 4831 4832 225 4841 4842 270 4851 4852 4853 550 4861 4862 550 4871 4872 550 1 Maximum GPM applies to both pump and gravity flow piping systems The outlet piping on gravity flow systems must have sufficient vertical drop to overcome all other head losses in the system 2 Bottom outlet is not available on Models 4811 and 4812 13 The following table shows the sizes and weights of the largest Aquatower components for each model You can use this information to plan your rigging and transportation needs Unassembled tower shipment may add 3 to 5 weeks to normal lead times Your Marley sales representative will be glad to help you plan for your unique needs Note Component Sizes and Weights For economical transportation Aquato
28. st be warranted by the manufacturer for one year from date of shipment Performance Tower shall cool GPM of water from SE to F at a design entering air wet bulb temperature of F Construction Structural components of the tower including the cold water basin framework mechanical equipment supports casing hot water basin and fan cylinder shall be fabricated of heavy gauge steel protected against corrosion by G 235 galvanizing All components subjected to factory welding shall be hot dip galvanized after completion of fabrication to a zinc thickness equivalent of G 235 Cold galvanizing is not acceptable Motor Motor s shall be hp Totally Enclosed specially insulated for cooling tower duty Speed and electrical characteristics shall be 1800 or 1800 900 RPM single winding phase ____ hertz volts The motor must be located out of the saturated discharge air stream Mechanical Equipment Fan s shall be fixed pitch propeller type Fan shall be driven through V belt s with a minimum service factor of 1 50 based on full motor hp The fan and fan pulley will be mounted on a bearing assembly with stainless steel shaft Marley Cooling Tower A United Dominion Company The Marley Cooling Tower Company 7401 W 129 Street Overland Park KS 66213 913 664 7400 email info marleyct com www marleyct com In the interest of technological progress all products are subject to design and or material change w
29. tion The cooling tower must be located at such distance and direction to avoid the possibility of contaminated tower discharge air being drawn into building fresh air intake ducts The purchaser should obtain the services of a Licensed Professional Engineer or Registered Architect to certify that the location of the tower is in compliance with applicable air pollution fire and clean air codes Fan drive motor showing adjustable base and belt guard Ii Hoisting and Handling Hoisting instructions on each tower explains how to use a spreader bar and slings beneath the cold water basin floor to hoist the Aquatower The tower s design also allows easy handling with a forklift W Safety Standard Aquatower safety features include fan guards and belt guards Fan guards consist of welded heavy gauge steel wire hoops and spokes hot dip galvanized after fabrication The galvanized steel belt guard encloses both belts and pulleys Guards are easily removed for servicing The fill sheets in every Series 4800 Aquatower are approved by Factory Mutual for use without sprinklers with no tower modifications W Construction and Finish Aquatowers offer the corrosion protection of G 235 galvanized steel Heavy mill galvanizing applied at the rate of 2 35 ounces per square foot 2 0 mils nominal thickness provides long term protection for the steel Optional Accessories Accessory Description and Remarks Accessory Description and R
30. uate air supply Consult Marley or and 4812 have connections for both side and bottom outlet Install the desired connection and seal the unused opening with the coverplate provided Pump suction should use side outlet See page 13 for size and flow capacities of bottom outlets Overfiow is a 2 F connecton located in side of collection basin Drain is a 2 F connection located in collection basin floor Makeup valve connection is 3 4 M located in tower side e A Supporting Steel e L 1 L 1 25mm F tT T T WI F 1 25mm ANCHOR ANCHOR g ANCHOR ANCHOR C H BOLT BOLT i pH BOLT BOLT J ee e z KH xn xe 9a Su o SS I ssl d z I EW TOWER 6 ro p COLLECTION BASIN o tHtS woe II J DIAMETER HOLES A h J DIAMETER HOLES x Lie TOWER il 2 E COLLECTION BASIN Sri WU EE zo 1 n a WE Ss Ee H la AIR INLET FACE LH AIR INLET FACE SUPPORTING STEEL PLAN SUPPORTING STEEL PLAN TOWER OPTION ONE dOWER OFTION TWO COLLECTION COLLECTION pu MIN BEARING WIDTH BASIN i BASIN AT EACH ANCHOR BOLT S uL AT 1 NORMAL NORMAL GAUGE GAUGE SUPPORT SUPFORT BY OTHERS BY OTHERS SECTION A VIEW B Maximum Wind Loads tb Model Weight Weight Load at Max Vertical Max Horizontal L w F G H 4 b b Anchor Reaction Reactlon b
31. water basin shall be factory sealed For maximum installation flexibility basin accessories shall include both a side suction connection and a hole and bolt circle in the basin floor suitable for gravity flow Both connections shall include a debris screen and anti cavitation device A factory installed float operated mechanical makeup valve shall be included having a 34 diameter inlet connection
32. wers are normally packaged unassembled when shipped from the US by sea or air freight Model Component Size in Weight Ib Collection Basin End 12x 13x36 15 Collection Basin Floor 3x30x32 3 pH Front Panel 2x 36x44 21 Casing 2x40x52 48 Distribution Basin 8x 16 x 32 18 Collection Basin End 14x 16 x 48 24 4821 Collection Basin Floor 3x36x44 37 bs Front Panel 2x48x68 52 4832 Casing 2x26x63 34 Distribution Basin 8x 16x 44 24 Collection Basin End 14x 16x 72 37 Collection Basin Floor 3x36x68 56 p Front Panel 2x37x72 35 Casing 2x26x63 34 Distribution Basin 8x 16 x 68 37 Collection Basin End 18x 18x 72 47 Collection Basin Floor 4x34x 68 56 4851 Front Panel 2x 44x72 41 4852 Casing 2x 40x76 63 ZS Distribution Basin 8x 28 x 68 52 Discharge Hood Side 2x41x77 37 Discharge Hood Floor 9x45x68 46 Collection Basin End 18x 18x 96 63 Collection Basin Floor 4x934x92 75 Front Panel 2x44x96 56 A Casing 2x40x76 63 Distribution Basin 8x28x92 70 Discharge Hood Side 2x41x77 37 Discharge Hood Floor 9x 45x63 EM Collection Basin End 18x 18 x 120 79 Collection Basin Floor 4x34x 116 95 Front Panel 2x46x120 7 pd Casing 2x40x84 69 4872 Distribution Basin Bx28x116 88 Discharge Hood Side 2x45x77 38 Discharge Hood Floor 9x45x77 54 Application You can use the Series 4800 Aquatower in normal applications requiring cold water for the
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