EC-S SERIES COOLING TOWERSINGLE-CELL UP TO 1250HRT COOLING CAPACITY

ENERGY CONSERVATION • SPACE SAVING • DESIGN FLEXIBILITY

High Performance Counterflow Type

®

CERTIFICATE NUMBER: 12-41-01MEMBER

Efficient Drift Eliminatorup to 0.001% drift loss, solves water carry overproblems

Reduced Pump Headspray nozzle pressure less than 1m

High Performance Fillreduces energy consumption.

Simplified Piping layoutstreamlined layout and lower piping cost.

Reliable Mechanical Driver Systemtrouble free operation.

Safety Maintenance Platformmeets OSHA requirements.

Advantages

1

Hyatt Hotel, Taiwan

ITE, Singapore

EC-S Series is an induced draft counter-flow,film filled, FRP multi-cell square cooling towerdesigned for the equipment cooling, andindustrial process cooling and air condition-ing applications.

The EC-S Series Cooling Tower is designed tomeet maximum performance and reliability,and minimum maintenance.

The thermal performance of EC-S Series hasbeen certified by CTI in accordance with CTIStandard STD-201.

EC-S Series Cooling Towers are designed andprovided with high quality v-belt & pulleydrive system or right-angle gear reducer drivesystem for trouble free operation.

®

Pertamina Plaju, Indonesia

Plexus Penang, Malaysia

Features

2

Osram Penang, Malaysia

Tang Plaza, Singapore

No Description Material / Specification

1 Fan Assembly Aluminium Alloy

2 V-Belt and Pulley System FRP Pulley Cover

epytCFETfoorPrehtaeWrotoM34 Fan Stack FRP

5 Main Frame Structure HDG Steel

6 Casing FRP

7 Ladder HDG Steel8 Cold Water Basin Floor FRP

9 Cold Water Basin Frame HDG Steel

10 Cold Water Basin Sump FRP

11 Louver FRP

12 High Performance PVCFilm Fill Pack

13 Non-Clog Spray Nozzle Polypropylene

14 Water Distribution System PVC

15 Drift Eliminator PVC

16 Safety Maintenance HDG SteelPlatform

17 Safety Handrail HDG Steel

18 Gear Box System Optional

Model De�nition Example

EC-S Series

StructureMaterial

Nominal Cell Size Motor Size

No. of Cell(s)

B = Belt & Pulley DriveG = Gear Reducer DriveS = HDG Steel

F = FRP PultrudedT = TimberX = Stainless Steel

EC S B - B4 M11111

No of air intake / celle.g. 4 = Four side air intake / cell

I = Inlet at bottomA= Additional ItemsM = Modi�cation/ Non-CTI listed

UKM Bangi, Malaysia

Setiawalk Puchong, Malaysia

OUTLINE AND FOUNDATION DRAWINGS (SINGLE CELL)

NOTE : ALL DIMENSION IN MM.

3

Overall Dimension Anchor Bolts DataAxial Flow FanTowerModel

ECS

Motor RatedCurrent

(at 415 V/50Hz)kW

1111B4-250 1313C4-4001111C4-300 1313D4-4501111D4-350 1313E4-5001111E4-4001212C4-3501212D4-4001212E4-4501212F4-500

1111B4-250 5.5 11.01111C4-300 7.5 13.61111D4-350 11.0 20.11111E4-400 15.0 26.71212C4-350 7.5 13.61212D4-400 11.0 20.11212E4-450 15.0 26.71212F4-500 18.5 33.21313C4-400 7.5 13.61313D4-450 11.0 20.11313E4-500 15.0 26.71313F4-550 18.5 33.21414B4-400 5.5 11.01414C4-450 7.5 13.61414D4-500 11.0 20.11414E4-550 15.0 26.71414F4-600 18.5 33.21515D4-550 11.0 20.11515E4-600 15.0 26.71515F4-650 18.5 33.21515G4-700 22.0 39.3

406406406406406406406406406406406406368368368368368330330330330

3410 3410 4200 750 900 2440 3360 3420

3720 3720 4200 750 900 2745 3670 3730

L W H A K B C D

4020 4020 4500 750 900 2745 3970 4030

4330 4330 4500 750 900 3050 4280 4340

4630 4630 4800 750 1200 3355 4580 4640

EC-S SERIES RANGE21

0300

210 180 320

320

425 60

0

TOWERBASE

BASINBOTTOM

BASINTOP

C1/2

DETAIL 1WATER OUTLET

OVERFLOW MAKE-UP AUTOMAKE-UP MANUAL

BALANCING PIPECONNECTION(OPTIONAL)

40 610

210

DETAIL 2

DRAIN

G

W

L

Ø B FAN

PLAN VIEW

HA

FRONT VIEWDETAIL 1

RC FOUNDATION DETAIL

CC1 C1

D15

015

0D1

D1

400

300

SIDE VIEW

FK

WATERINLET

DETAIL 2

AIR INLET AIR INLET

AIR DISCHARGE

Fan Speed RPM

NOTE : ALL DIMENSION IN MM.

4

EC-S SERIES RANGEPiping SizeAnchor Bolts Data Piping Data Weight (kg)

WaterInlet

WaterOutlet

DryWeight

OperatingWeightOverflow Make up Auto

& ManualDrainC1 D1 F G

TowerModel

ECS

1313F4-550 1414B4-4001414C4-4501414D4-5001414E4-5501414F4-600

1111B4-2501111C4-3001111D4-3501111E4-4001212C4-3501212D4-4001212E4-4501212F4-5001313C4-4001313D4-4501313E4-5001313F4-5501414B4-4001414C4-4501414D4-5001414E4-5501414F4-6001515D4-5501515E4-6001515F4-6501515G4-700

200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 1,875 4,455200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,040 4,800200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,205 5,145200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,370 5,490200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,320 5,590200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,670 6,195200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,700 6,250250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 2,800 6,350200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,750 6,600200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 2,850 6,770250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 3,220 7,130250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 3,310 7,230200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 3,520 8,070200 x 1 200 x 1 80 x 1 50 x 1 50 x 1 3,620 8,170250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 3,720 8,270250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 3,820 8,370250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 4,070 8,620250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 4,360 9,630250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 4,460 9,730250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 4,560 9,830250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 4,910 10,590

1680 1710 3300 880

1835 1865 3300 957

1985 2015 3600 1033

2140 2170 3600 1110

2290 2320 3900 1185

OUTLINE AND FOUNDATION DRAWINGS (SINGLE CELL)

G

W

L

Ø B FAN

PLAN VIEW

685

DETAIL 3

OVERFLOW

C1/2 C1/2

305 305

300 42

5 600

TOWERBASE

BASINBOTTOM

BASINTOP

C1/2

DETAIL 1

MAKE-UP AUTO MAKE-UP MANUAL

WATER OUTLET

53540

DETAIL 2

BALANCING PIPECONNECTION(OPTIONAL)DRAIN

A

FRONT VIEW

H

DETAIL 1SIDE VIEW

FK

WATERINLET

DETAIL 2

AIR INLET AIR INLET

AIR DISCHARGE

C1 C1C

D1D1

D15

0RC FOUNDATION DETAIL

OVERFLOW

DETAIL 3

150

150

400

300

NOTE : ALL DIMENSION IN MM.

5

1515D4-5501515E4-6001515F4-6501515G4-700

OUTLINE AND FOUNDATION DRAWINGS (SINGLE CELL)

FK

WATERINLET

DETAIL 2

SIDE VIEW

AIR INLET AIR INLET

AIR DISCHARGE

PLAN VIEWG

W

L

Ø B FAN

FRONT VIEW

HA

DETAIL 1

OVERFLOW

DETAIL 3

300

600

C1 C1C

D1D1

DRC FOUNDATION DETAIL

150

150

150

305 305

300 42

5 600

TOWERBASE

BASINBOTTOM

BASINTOP

C1/2

DETAIL 1

MAKE-UP AUTO MAKE-UP MANUAL

WATER OUTLET

685

DETAIL 3

OVERFLOW

C1/2 C1/2

53540

DETAIL 2

BALANCING PIPECONNECTION(OPTIONAL)DRAIN

Overall Dimension Anchor Bolts DataAxial Flow FanTowerModel

ECS

Motor RatedCurrent

(at 415 V/50Hz)kW

1616D4-600 11.0 20.11616E4-700 15.0 26.71616G4-750 22.0 39.31616H4-800 30.0 51.91717E4-750 15.0 26.71717F4-800 18.5 33.21717G4-850 22.0 39.31717H4-900 30.0 51.91717I4-950 37.0 66.01818E4-800 15.0 26.71818F4-850 18.5 33.21818G4-900 22.0 39.31818H4-950 30.0 51.91818I4-1000 37.0 66.02020F4-950 18.5 33.2

2020G4-1000 22.0 39.32020H4-1100 30.0 51.92020I4-1150 37.0 66.02020J4-1250 45.0 78.7

250250250250250250250250310250250250250310250250250310310

4940 4940 4800 750 1200 3660 4890 4950

5240 5240 4800 750 1200 3660 5190 5250

L W H A K B C D

5550 5550 5250 750 1200 3660 5500 5560

6160 6160 5250 750 1200 3660 6110 6170

EC-S SERIES RANGE

Fan Speed RPM

NOTE : ALL DIMENSION IN MM.

6

Piping Data )gk(thgieWeziSgnipiPAnchor Bolts DataWaterInlet

WaterOutlet

DryWeight

OperatingWeightOverflow Drain

EC-S SERIES RANGE

1616D4-6001616E4-7001616G4-7501616H4-8001717E4-7501717F4-8001717G4-8501717H4-9001717I4-9501818E4-8001818F4-8501818G4-9001818H4-9501818I4-10002020F4-950

2020G4-10002020H4-11002020I4-11502020J4-1250

1616D4-6001616E4-7001616G4-7501616H4-8001717E4-7501717F4-8001717G4-8501717H4-9001717I4-950

C1 D1 D2 F G

1630 1678 1594 3900 2470

1730 1778 1694 3900 2620

1833 1882 1796 3900 2775

2037 2085 2000 3900 3080

Make up Auto& Manual

TowerModel

ECS

OUTLINE AND FOUNDATION DRAWINGS (SINGLE CELL)

SIDE VIEW

FK

WATERINLET

DETAIL 2

AIR INLET AIR INLET

AIR DISCHARGE

PLAN VIEW

G

W

L

Ø B FAN

HA

DETAIL 1FRONT VIEW

OVERFLOW

DETAIL 3

C1 C1 C1

C

D1D2

D1

DRC FOUNDATION DETAIL

600

300

150

150

150

685

DETAIL 3

OVERFLOW

C1/2 C1/2

53540

DETAIL 2

BALANCING PIPECONNECTION(OPTIONAL)

DRAIN

305 305

300 42

5 600

TOWERBASE

BASINBOTTOM

BASINTOP

C1/2

DETAIL 1

MAKE-UP AUTO MAKE-UP MANUAL

WATER OUTLET

250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 5,380 11,840250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 5,480 11,940250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 5,580 12,040300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 5,680 12,140250 x 1 250 x 1 100 x 1 80 x 1 50 x 1 6,020 13,180300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 6,270 13,530300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 6,520 13,880300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 6,610 13,970300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 6,710 14,070300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 7,100 15,360300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 7,200 15,460300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 7,300 15,560300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 7,400 15,660300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 7,500 15,760300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 8,870 19,050300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 10,030 21,660300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 10,120 21,750300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 10,200 21,830300 x 1 300 x 1 100 x 1 80 x 1 50 x 1 10,280 21,910

1818E4-8001818F4-8501818G4-9001818H4-9501818I4-10002020F4-950

2020G4-10002020H4-11002020I4-11502020J4-1250

7

ModelECS

EC-S SERIES QUICK SELECTION TABLE

Deg C

Deg F

m3/hrMotorkW

1111B4-250 5.5 116.50 212.00 133.70 144.00 147.70 198.00 129.50 185.50 184.00 171.25 156.20 154.601111C4-300 7.5 129.64 235.91 148.78 160.24 164.36 220.33 144.11 206.42 204.75 190.56 173.82 172.041111D4-350 11.0 148.03 269.38 169.89 182.98 187.68 251.59 164.55 235.71 233.80 217.60 198.48 196.451111E4-400 15.0 164.24 298.87 188.49 203.01 208.22 279.14 182.57 261.51 259.40 241.42 220.21 217.951212C4-350 7.5 145.41 264.60 166.87 179.73 184.35 247.13 161.63 231.53 229.65 213.74 194.96 192.961212D4-400 11.0 169.06 307.64 194.02 208.96 214.33 287.32 187.92 269.18 267.01 248.51 226.67 224.341212E4-450 15.0 185.70 337.92 213.12 229.53 235.43 315.61 206.42 295.68 293.29 272.97 248.98 246.431212F4-500 18.5 198.84 361.83 228.19 245.77 252.09 337.94 221.03 316.61 314.05 292.28 266.60 263.871313C4-400 7.5 164.24 298.87 188.49 203.01 208.22 279.14 182.57 261.51 259.40 241.42 220.21 217.951313D4-450 11.0 186.14 338.72 213.62 230.08 235.99 316.35 206.91 296.38 293.98 273.61 249.57 247.011313E4-500 15.0 206.72 376.18 237.24 255.52 262.08 351.34 229.79 329.16 326.50 303.87 277.17 274.331313F4-550 18.5 222.05 404.08 254.83 274.47 281.52 377.39 246.83 353.57 350.71 326.41 297.72 294.671414B4-400 5.5 164.24 298.87 188.49 203.01 208.22 279.14 182.57 261.51 259.40 241.42 220.21 217.951414C4-450 7.5 182.20 331.55 209.09 225.20 230.99 309.65 202.53 290.11 287.76 267.82 244.28 241.781414D4-500 11.0 207.60 377.77 238.25 256.60 263.19 352.83 230.76 330.55 327.88 305.16 278.34 275.491414E4-550 15.0 229.93 418.42 263.88 284.21 291.51 390.79 255.59 366.12 363.16 337.99 308.29 305.131414F4-600 18.5 246.58 448.71 282.98 304.78 312.61 419.08 274.09 392.62 389.44 362.46 330.60 327.221515D4-550 11.0 233.00 424.00 267.40 288.00 295.40 396.00 259.00 371.00 368.00 342.50 312.40 309.201515E4-600 15.0 257.96 469.43 296.05 318.86 327.05 438.43 286.75 410.75 407.43 379.20 345.87 342.331515F4-650 18.5 276.80 503.70 317.66 342.14 350.93 470.44 307.68 440.74 437.17 406.88 371.12 367.321515G4-700 22.0 293.00 533.19 336.26 362.17 371.47 497.98 325.70 466.54 462.77 430.70 392.85 388.821616D4-600 11.0 259.72 472.62 298.06 321.02 329.27 441.41 288.70 413.54 410.20 381.77 348.22 344.651616E4-700 15.0 288.18 524.42 330.73 356.21 365.36 489.79 320.34 458.87 455.16 423.62 386.39 382.431616G4-750 22.0 326.73 594.56 374.96 403.85 414.23 555.29 363.18 520.24 516.03 480.27 438.06 433.581616H4-800 30.0 362.20 659.11 415.68 447.70 459.20 615.59 402.62 576.72 572.06 532.42 485.63 480.651717E4-750 15.0 300.01 545.94 344.30 370.83 380.36 509.89 333.49 477.70 473.83 441.00 402.24 398.121717F4-800 18.5 321.03 584.20 368.43 396.81 407.01 545.62 356.86 511.17 507.04 471.90 430.43 426.021717G4-850 22.0 340.30 619.26 390.54 420.63 431.44 578.37 378.28 541.86 537.47 500.23 456.27 451.591717H4-900 30.0 377.09 686.21 432.77 466.11 478.08 640.89 419.17 600.43 595.58 554.31 505.59 500.421717I4-950 37.0 404.68 736.42 464.43 500.21 513.06 687.79 449.84 644.37 639.16 594.87 542.59 537.031818E4-800 15.0 315.78 574.63 362.40 390.32 400.34 536.68 351.01 502.80 498.74 464.18 423.38 419.051818F4-850 18.5 338.55 616.08 388.53 418.47 429.22 575.39 376.33 539.07 534.71 497.66 453.92 449.271818G4-900 22.0 358.70 652.74 411.66 443.37 454.76 609.63 398.72 571.14 566.53 527.27 480.93 476.011818H4-950 30.0 397.24 722.87 455.89 491.01 503.62 675.14 441.57 632.51 627.40 583.92 532.61 527.151818I4-1000 37.0 427.46 777.86 490.57 528.36 541.94 726.50 475.16 680.63 675.13 628.35 573.12 567.252020F4-950 18.5 370.96 675.05 425.73 458.53 470.31 630.47 412.36 590.67 585.89 545.30 497.37 492.28

2020G4-1000 22.0 392.86 714.90 450.86 485.59 498.07 667.69 436.70 625.54 620.48 577.49 526.73 521.342020H4-1100 30.0 436.66 794.60 501.12 539.73 553.60 742.13 485.38 695.28 689.65 641.87 585.46 579.462020I4-1150 37.0 468.19 851.98 537.31 578.71 593.58 795.72 520.43 745.49 739.46 688.22 627.74 621.312020J4-1250 45.0 499.72 909.37 573.50 617.68 633.56 849.32 555.49 795.70 789.26 734.57 670.02 663.15

35.0 37.0 35.0 36.1 36.7 37.0 36.1 37.8 37.0 37.8 37.8 37.0

29.5 32.0 30.0 30.6 31.1 32.0 30.6 32.2 32.0 32.2 32.2 32.0

27.0 27.0 27.2 27.2 27.8 27.5 27.8 27.8 28.0 28.3 28.9 29.0

95.0 98.6 95.0 97.0 98.0 98.6 97.0 100.0 98.6 100.0 100.0 98.6

85.1 89.6 86.0 87.0 88.0 89.6 87.0 90.0 89.6 90.0 90.0 89.6

80.6 80.6 81.0 81.0 82.0 81.5 82.0 82.0 82.4 83.0 84.0 84.2

HWTCWTWBT

HWTCWTWBT

SOUND LEVEL CHART (SINGLE CELL)

8

SOUND LEVEL dB(A) - SINGLE CELLLouver Louver

2m 10m 2m 10m 45 deg

Fan

81.0 72.0 81.0 72.0 82.078.0 69.0 78.0 69.0 78.578.5 69.5 78.5 69.5 79.080.5 71.0 80.5 71.0 81.081.0 72.0 81.0 72.0 81.578.5 69.5 78.5 69.5 79.080.0 71.0 80.0 71.0 80.581.0 72.0 81.0 72.0 81.081.5 72.5 81.5 72.5 82.082.0 73.0 82.0 73.0 82.578.5 69.5 78.5 69.5 79.080.0 71.0 80.0 71.0 80.581.0 72.0 81.0 72.0 81.081.5 72.5 81.5 72.5 82.082.5 73.5 82.5 73.5 82.580.0 71.0 80.0 71.0 80.581.0 72.0 81.0 72.0 81.082.0 73.0 82.0 73.0 82.583.0 74.0 83.0 74.0 83.083.5 74.5 83.5 74.0 84.0

Point 1 2 3 4 5@1.5M

1515G4-7001616D4-6001616E4-7001616G4-7501616H4-8001717E4-7501717F4-8001717G4-8501717H4-9001717I4-9501818E4-8001818F4-8501818G4-9001818H4-9501818I4-10002020F4-950

2020G4-10002020H4-11002020I4-11502020J4-1250

TowerModel

ECS

SOUND LEVEL dB(A) - SINGLE CELLLouver Louver

2m 10m 2m 10m 45 deg

Fan

73.0 64.0 73.0 64.0 74.074.0 65.0 74.0 65.0 75.075.5 66.5 75.5 66.5 76.576.5 67.5 76.5 67.5 78.074.0 65.0 74.0 65.0 75.075.5 66.5 75.5 66.5 76.576.5 67.5 76.5 67.5 78.079.0 69.5 79.0 69.5 80.574.0 65.0 74.0 65.0 75.075.5 66.5 75.5 66.5 76.576.5 67.5 76.5 67.5 78.079.0 69.5 79.0 69.5 80.573.0 64.0 73.0 64.0 74.074.0 65.0 74.0 65.0 75.075.5 66.5 75.5 66.5 76.578.5 69.5 78.5 69.5 79.079.0 69.5 79.0 69.5 80.578.5 69.5 78.5 69.5 78.578.5 69.5 78.5 69.5 79.080.0 71.0 80.0 71.0 81.0

Point 1 2 3 4 5@1.5M

1111B4-2501111C4-3001111D4-3501111E4-4001212C4-3501212D4-4001212E4-4501212F4-5001313C4-4001313D4-4501313E4-5001313F4-5501414B4-4001414C4-4501414D4-5001414E4-5501414F4-6001515D4-5501515E4-6001515F4-650

TowerModel

ECS

Louver SideLouver Side

Fan Side

9

RECOMMENDED UNIT LAYOUT

A. SINGLE UNIT INSTALLATIONS

: Wind effect with top of unit lower than top of wallINCORRECT CORRECT Installation elevated so that top of unit ishigher than top of wall

TABLE 1 SINGLE UNIT INSTALLATION

Tower Model Tower Width, MinimumECS W mm Dimension, mm

D3 (End-to-End)

All models All sizes 1000

Tower Model Tower MinimumECS Length, L mm Dimension, mm

D4 (Side-by-Side)

11111212 Below 8000 30001313

1414 to 2020 Below 12000 4000

It is advisable to select and design the best layout or location to avoid air recirculation. Recirculation occurs when some of thehot moist discharge air leaving the cooling tower flows back into the fresh air inlet. The following guidelines will provide the bestlocation or layout which will minimize recirculation, maximize fresh air flow and allow adequate maintenance accessibility.

The best place for EC-S Series Cooling Tower is in an open space. However, when this is not possible, correct layout guidelinesmust be followed to provide satisfactory installation.

Ensure that the top of the cooling tower is higher than any adjacent walls, buildings or other structures.

Figure 1(a) and 1(b) are examples of incorrect installation. These conditions can be corrected by elevating the unit on structuralsteel/concrete plinths so that the top is higher that the wall as shown in Figure 1(c).

FIGURE: 1(a) FIGURE: 1(b) FIGURE: 1(c)

When a cooling tower is located near a wall, considerationmust be given to the clearance distance between the airinlets of the tower and the wall structure(s). See Figure 2,Recommended Dimensions D1 and D2.

The minimum dimensions, D1 and D2, as shown in Table 1must be maintained to ensure that the unit is providedadequate air flow. In some installation, consideration mustalso be given to access to the unit for maintenance. Roommust be provided for piping, removals of access panels,etc.

Sometimes other pieces of equipment such as pumps,filters, piping etc are placed in front of the air inlets. Theseobstructions should not be located any closer than theminimum dimensions in Table 1.

1111121213131414

151516161717

18182020

Tower ModelECS D1 (At Width Side) D2 (At Length Side)

1800 1800

2200 2200

2750 2750

TABLE 2 MULTIPLE UNIT INSTALLATION

FIGURE 2: INSTALLATION NEXT TO A WALL

D2

D1

AIR INLET

AIR INLET AIR INLET

AIR INLET

AIRINLET

AIRINLET

AIRINLET

AIRINLET

AIRINLET

AIRINLET

Minimum Dimension (mm)

The minimum dimensions are as listed in Table 2

10

B. MULTIPLE UNIT INSTALLATION TABLE 3When more than one cooling tower is installed at thesame location, recirculation becomes a bigger problem.

With the installations of two cooling towers, they shouldbe placed end to end with the narrows ends adjacentas shown in Figure 3. Another method is to locate theunits side-by-side with the longer sides parallel to eachother as shown in Figure 4. In either configuration, thedistance between the units must provide adequateairflow as well as room for piping to the unit and accessfor maintenance.

Tower Model Minimum Dimension, mmECS D5 (At Width Side)

Consult Truwater’s Design Engineer

Tower Model Minimum Dimension, mmECS D6 (At Length Side)

Consult Truwater’s Design Engineer

TABLE 4

2) Louvered Wall EnclosuresEC-S Series Cooling Tower can also be installed in enclosureswith louvered or slotted walls and an open top (Figure 6)with this type of enclosure, the air flow patterns will be amixture of the open type and well installation. The inlet airwill be drawn from the top as well as through the louvers orslots.

When considering a multiple-cell unit located in a louveredwall enclosure, the D7 and D8 dimensions, found in Table 4,must be used as absolute minimums.

The unit should be oriented so that the air flows uniformly tothe air inlets on all louver sides of the unit. The air dischargeof the unit must be level with or higher than surroundingwalls.

C. SPECIAL ENCLOSURE INSTALLATION1) Solid Wall Enclosures or WellsFigure 5 shown a cooling tower is installed in a well. Whenconsidering a multiple-cell unit located in a well, the D5and D6 dimensions, found in Table 3, must be used asabsolute minimums.

Tower Model End Wall MinimumECS Length, L mm Dimension, mm

D7 (At Width Side)

Consult Truwater’s Design Engineer

Tower Model Louver Width, MinimumECS W mm Dimension, mm

D8 (At Length Side)

Consult Truwater’s Design Engineer

FIGURE 5: SOLID WALL ENCLOSURE

D6

D5

D3

W

FIGURE 3: MULTIPLE UNITS PLACED END TO END

L

D4

FIGURE 4: MULTIPLE UNITS PLACED SIDE-BY-SIDE

D8

D7

FIGURE 6: LOUVERED WALL ENCLOSURE

LOUVERED WALL