powered by rosemex extek group cooling tower · the design of the cooling tower, exterior...

Single side air inlet

COOLINGTOWER

CLOSED TYPE

Double side air inletsRCD

RCS

Powered by Rosemex Extek Group


USA OfficeDynamic Engineered Systems, Inc.

P.O. Box 2081

Corona CA. 92879

Office / Cell 951-278-0282

Fax 951 737-3540

Shanghai OfficeRoom 308, Block A, National Convention Center

#1988 Zhuguang Rd, Qingpu District, Shanghai

China 201702

Tel: (8621) 56389411 Fax: (8621) 56382762

Email: [email protected]

India OfficeRosemex Ecotech Pvt.Ltd.,

F-234,Palam Corporate Plaza,

Palam Vihar,

Gurgaon - 122017, Haryana, India

[email protected]

Phone:+91-124-4239230

PAGE 02

ABOUT FACTORYRER　manufactures　various　models　of　closed　circuit cooling　towers　for　HVAC　and　industrial　closed　loop　systems.

Display of RCD series closed circuit cooling towers and ROD series open cooling towers in RER China factory.

Advanced evaporative condenser design with various types of coils in galvanized steel, copper and stainless steel.


CERTIFICATION

CTICooling Technology Institute

ISO9001-2008ISO14001-2004OHSAS18001-2007

PAGE 04

The design of the cooling tower, exterior appearance, steel structure, color, noise, fan and air discharge, are designed to meet the project requirements.

RCD Model

The lateral flow closed circuit cooing tower is designed with modular configuration. This lateral flow closed circuit cooling tower is low noise and suitable for all industrial, HVAC and commercial applications. It is also applicable for the working condition where the temperature difference is 39.2 – 46.4°F.

RER has applied an easy and simple design to suit the overall cooling tower layout, foundation, pipings, maintenance, site connections and remote control requirements.　

Principle

PRODUCT

Cooledmedium outlet

Hot medium inlet

Cooledmedium outlet

Hot medium inlet

Fresh airFresh air

Hot air

Fresh air Fresh air


RCD RCS

Double side air inlets

For commercial & industrial application

Low noise

Suitable for wet bulb temperature is≥59˚F

Single side air inlet

Widely used for industrial application or where air inlet is restricted

Suitable for wet bulb temperature is ≥59˚F

Either way add the temp in F to the text

PAGE 05 PAGE 06

The cooling capacity range of single modular closed circuit cooling towers certified by CTI is from 33 RT to 840 RT

Major components are manufactured of steel which are more rugged and environmental friendly.

Factory assembled and tested to assure quality.

Modular design enables easy shipping and site assembly.

The “I” beam steel support base frame would minimize site foundation work.　

PRODUCT OVERVIEWRER closed circuit cooling tower OTHER SERIES

RER Products and models of cooling towers and evaporative condensers.

Counter flow closed circuit cooling towerRCT

Open type cooling tower with single side air inletROS

Counter flow open type cooling towerROT

Evaporative condenser with double side air inlets RED

Counter flow evaporative condenserRET

Evaporative condenser with single side air inletRES

Open type cooling tower with double side air inletsROD

Counter flow closed circuit wet & dry cooling towerRCTF


PAGE 08

RER will guarantee that all models supplied will meet the specified perfor-

mance conditions when the tower is installed according to manufac-

turer’s installation instructions.

The cooling capacity range of single modular closed circuit cooling towers certified by CTI is from 33 RT to 840 RT.

The selection software is available for model selection, and also to be used for installation, operation and maintenance support.

The designer may refer to Selection method , Major components material list for options.

Thermal Performance

Thermodynamic Performance and Selection

Technical parameters:

Cooling medium: water (or ethylene glycol, propylene glycol)

Water flow: ______GPM

Inlet water temperature: _______°F

Outlet water temperature: ________ °F

Wet bulb temperature :________°F

Select the cooling tower model from CTI website published

selection table or RER cooling tower selection software

Selection Method

Major components：

□ RCD - Double side air inlets

□ RCS - Single side air inlet

□ RCT - Four side air inlets

Cooling tower

Cooling tower frame material

Cooling tower casing

Cooling tower water pan

Cooling coil material

Fan drive system

Fan blade material

Motor brand

Fill

Spray Nozzle

□ G235 (Z700) hot dip galvanized steel

□ SUS304 stainless steel

□ 316L stainless steel







□ Hot dip galvanized steel pipe (δ= .05”, φ=.75”-.98”)

□ SUS304 stainless steel tube (δ= .04”, φ=.75”-.98”)

□ SUS316 stainless steel tube (δ= .04”, φ=.75”-.98”)

□ TP2Y copper tube (δ= .02”, φ=.75”-.98”)

□ Direct Driven

□ Belt Driven

□ Gear Driven

Hollow aluminum alloy

□ Siemens □ ABB □ WEG

PVC

ABS

Description Options - Type/Brand


PAGE 10

Coil consists of water inlet and outlet headers, support and

inlet and outlet piping.

Coil consists of serpentine pipes running in a slope opposite to

the air flow.

The slope of each pipe is not less than 0.01 for easy drainage.

The water pipe flow velocity inside the pipe is 2 ft/sec – 6.5

ft/sec.

Air purge should be installed at the top of the water pipe system.

There are special quick connect fittings at the inlet and outlet

of each serpentine pipe.

The coil water side resistance is less than or equal to 1670

lbs./ft2 .

The standard coil material is hot dip galvanized carbon steel with

options: type S: 304 (or 316L) stainless steel and type T: copper.

Type G - .3625 psi

Type S - .29 psi

Type T - .232 psi

The pressure test

Pipe specifications

Coil

Type G : .748” diameter, .047” wall thickness

Type S : .748” diameter, .039” wall thickness

Type T : .748” diameter, .024” wall thickness

RER cooling towers are constructed of steel, including the

frames, casings, pans, and distribution box etc. Steel is G235, .06”

-.16” thickness, with anti-corrosion hot dip galvanized steel

Frame is made of .12” - .16” thickness double folded steel and

assembled with galvanized bolts without welding to

withstand 9.4 lbs./ft2 wind load and 8 seismic intensity.

Frame

Casing is made of .06” - .08”thickness double folded steel

assembled with galvanized bolts without welding, .08”

thickness for lower tower and .06” thickness for upper tower.

Casing

The sloped basin design reduces operating weight, avoids the

formation of algae fungus in the pan and is equipped with L

shape drain outlet at the bottom of the concave basin pan.

Cold water basin

Optional: The basin material can be 304 (316L) stainless steel, and

the frame and casing material can be 304 (316L) stainless steel.

The Tower basin support is made of hot dipped galvanized steel

with a pallet block design made of hot dipped galvanized steel

channel which allows for easy rigging and minimize the site

foundation cost.

Basin Support

Structure of Cooling Tower


PAGE 12

Spray pump is based on the JIS-C4210 Standards, motor protection

class IP55, insulation class F. The spray pump head is based on

the height of the cooling tower i.e. from 9.84 ft. to 26.25 ft.

Spray pump

Basin type water distribution by gravity:Material is G235

(Z700) heavy gauge galvanized steel and pressure loss is

≤104.41bs/ft2

Water distribution pipes: There is a self-balance buffer chamber

in front of the water distribution pipes to provide an evenly

pressurized uniform water distribution and there are easy to

dismantle rings in between the chamber and the pipes for

maintenance during operation.

Inlet pipe material : Hot dip galvanized steel pipe, and 304

stainless steel is optional.

Nozzles: The ABS nozzle can be replaced during operation, and

the spray angle can be adjusted.

Water distribution mode

Spray system consists of spray pump, water inlet pipe valve, water

distribution pipes, pre-cooling fill nozzles, make up water supply

device, drainage device, water treatment, etc. Fills are designed with the most suitable flame retardant PVC

material to give the best thermal performance taking into

consideration the ventilation, water quality and maintenance

conditions. Fills are suspended on galvanized steel pipes for easy

maintenance and effective evaporation. The integral design of the

louver and fill enables the collection of water without additional

device to reduce the drift loss to less than 0.001%. There are two

types of fills:

A. Standard PVC fill, good for temperature of 140˚F (60 ℃).

B. High temperature PP fill, good for temperature of 221˚F (105 ℃).

Fill

There is a makeup water float valve and an overflow connection.

The bottom of basin is sloped and has to bleed off periodically to

reduce the mineral content.

Make up water, overflow and bleed off

Spray system Spray system


PAGE 14

The Fan blade is an aluminum alloy hollow airfoil blade suitable for

ambient temperature from -4˚F to 158˚F and the blade angle index

can be adjusted if needed.

Fan Blade

Series RCS ( fan diameter ≤62.99” ) fan assembly is direct drive

(440 - 750 RPM), single side air inlet, top air discharge , with built-in

maintenance free bearing.

Series RCD-34X to RCD-39X, double side air inlets towers, ( fan

diameter ≤126”) fan assemblies are belt driven, with industrial

grade multi-groove V belt rated 150% motor power output and can

be adjusted by special tightening bolt; pulley is either cast iron or

aluminum alloy and there are easy accessible oil filling and draining

holes.

Series RCD-4XX, double side air inlets towers, ( fan diameter ≤126” )

are gear driven, with heavy duty efficient transmission gear box

made of low alloy structural steel.

Classification of Fan for Cooling Tower

Fan Assembly

Noise is affected by the design and tower size, fan discharge,

type of fan blade, air pressure drop, fan discharge area, fan

speed, silencers, heat exchanger area, spray area, etc. There are

ways to minimize noise to meet the requirements.

Motor for Fan Motors for fan assemblies are fully enclosed outdoor type (TEFC or TEAO) suitable for hot and humid environment.

Motor is based on JIS-C4210 Standards, motor protection class IP55, insulation class F.

Motor design is based on 1.15 safety factor with built-in maintenance free bearings.

Options: variable frequency drive motor, high efficient motor, multi speed motor.

Options are available for the following items

Options

Ladder with safety cage, handrail guard and platform, materials to be galvanized steel for as standard and stainless steel as also optional.

Electric heater for the basin freeze protection.

Electric level control sensor.

Electric control panel

Control panel is available to control motor, water temperature,

water level to achieve operation efficiency. Remote monitoring,

PLC intelligent centralized control and variable frequency

control are optional.


PAGE 16

VIEW 2 VIEW 1

1、Nomenclature: RCD-341BD R:Manufacture C：Closed circuit type D：Double side air inlets 341BD：Model code2、Nominal tons of cooling represents USGPM of water cooled from 95°F to 85°F at a 78°F entering wet-bulb temperature.3、RCD model is suitable for low noise air conditioning projects.4、The above CTI capacities are for single module and can apply to multiple modules for capacities.5、The above capacities are base on hot galvanized steel coils.6、Refer to selection software for more information.

NOTES

Model

RCD-341BD

RCD-342BD

RCD-342ED

RCD-342EP

RCD-343EP

RCD-343EL

RCD-361BD

RCD-362BP

RCD-362ED

RCD-362EP

RCD-363ED

RCD-363EP

RCD-363HP

RCD-363HG

RCD-364HP

RCD-364HG

RCD-381BD

RCD-382BP

RCD-382ED

RCD-382EP

RCD-383ED

RCD-383EP

RCD-383HP

RCD-383HG

RCD-384HD

RCD-384HP

RCD-384HG

160

178

199

227

252

277

259

302

323

373

369

397

415

461

486

547

359

408

437

486

476

529

585

618

621

671

714

5

5

5

7

7

10

7

10

10

15

10

15

15

20

15

20

10

15

15

20

15

20

20

25

20

25

29

35,192

35,192

35,192

41,128

41,128

47,700

54,060

63,600

63,600

77,592

63,600

77,592

77,592

89,040

77,592

89,040

74,200

86,920

86,920

100,700

86,920

100,700

100,700

111,300

100,700

111,300

119,992

459

459

459

459

459

459

602

602

602

602

602

602

602

602

602

602

872

872

872

872

872

872

872

872

872

872

872

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 2

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

(2) 3

（2）4

（2）4

（2）4

（2）4

（2）4

（2）4

（2）4

（2）4

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）4

（2）4

（2）4

（2）4

（2）4

（2）4

（2）4

（2）4

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

（2）5

7.382

7.382

7.382

7.382

7.382

7.382

8.123

8.123

8.123

8.123

8.123

8.123

8.123

8.123

8.123

8.123

9.764

9.764

9.764

9.764

9.764

9.764

9.764

9.764

9.764

9.764

9.764

12.441

12.441

12.441

12.441

12.441

12.441

15.722

15.722

15.722

15.722

15.722

15.722

15.722

15.722

15.722

15.722

17.126

17.126

17.126

17.126

17.126

17.126

17.126

17.126

17.126

17.126

17.126

11.647

11.647

13.615

13.615

13.615

13.615

11.647

11.647

13.615

13.615

13.615

13.615

16.339

16.339

16.339

16.339

11.647

11.647

13.615

13.615

13.615

13.615

16.339

16.339

16.339

16.339

16.339

10.472

10.472

6.781

6.781

6.781

6.781

10.472

10.472

6.781

6.781

6.781

6.781

8.369

8.369

8.369

8.369

10.472

10.472

6.781

6.781

6.781

6.781

8.369

8.369

8.369

8.369

8.369

/

/

6.834

6.834

6.834

6.834

/

/

6.834

6.834

6.834

6.834

7.969

7.969

7.969

7.969

/

/

6.834

6.834

6.834

6.834

7.969

7.969

7.969

7.969

7.969

6,160

6,864

8,030

8,140

9,020

9,130

9,416

10,164

10,978

11,088

11,660

11,836

12,540

12,716

13,310

13,486

11,286

12,199

13,332

13,519

14,410

14,520

15,400

15,730

17,094

17,270

17,424

11,330

12,034

13,090

13,200

14,190

14,300

16,566

17,028

18,128

18,238

18,920

19,030

19,580

19,800

21,010

21,230

19,932

20,559

21,923

22,099

23,210

23,320

24,420

24,530

26,334

26,554

26,664

Nominal tons

gpm cfm

Fan Spray Pump

PowerMotor Power

HP

AirflowRate

HP

L W H

Water Flow Rate

Shipping weight

Outline dimension Operating weight

ft.ft.inchinch ft.

h1

ft.

h2

ft. ibs. ibs.

OutletInlet

Model Nominal tons

gpm cfm

Fan Spray Pump

PowerMotor Power

HP

AirflowRate

HP

L W H

Water Flow Rate

Shipping weight


ft.ft.inchinch ft.

h1

ft.

h2

ft. ibs. ibs.

OutletInlet

RCD-393ED

RCD-393EP

RCD-393EG

RCD-393HD

RCD-393HP

RCD-393HG

RCD-394HD

RCD-394HP

RCD-394HG

RCD-413ED

RCD-413EL

RCD-413EP

RCD-413EG

RCD-413HD

RCD-413HL

RCD-413HP

RCD-413HG

RCD-414HD

RCD-414HL

RCD-414HP

RCD-414HG

RCD-433ED

RCD-433EL

RCD-433EP

RCD-433EG

RCD-433HD

RCD-433HL

RCD-433HP

RCD-433HG

RCD-434HD

RCD-434HL

RCD-434HP

RCD-434HG

866

919

1,019

958

1,058

1,136

1,065

1,143

1,214

962

1,022

1,136

1,218

1,083

1,203

1,278

1,367

1,289

1,381

1,473

1,576

1,196

1,331

1,427

1,519

1,409

1,508

1,611

1,722

1,508

1,619

1,704

1,810

25

29

40

29

40

50

40

50

60

25

29

40

50

29

40

50

60

40

50

60

74

29

40

50

60

40

50

60

74

40

50

60

74

137,800

153,700

174,900

153,700

174,900

206,700

174,900

206,700

238,500

172,780

183,380

203,520

218,360

186,560

205,640

221,540

236,380

208,820

225,780

239,560

275,600

214,120

235,320

254,400

269,240

237,440

257,580

274,540

292,560

241,680

259,700

275,600

301,040

1046

1046

1046

1046

1046

1046

1046

1046

1046

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

2045

(2) 5

(2) 5

(2) 5

(2) 5

(2) 5

(2) 5

(2) 5

(2) 5

(2) 5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 7.5

(2) 2

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）6

（2）6

（2）6

（2）6

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）6

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）6

（2）6

（2）6

（2）6

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

（2）8

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

11.877

13.944

13.944

13.944

13.944

13.944

13.944

13.944

13.944

13.944

13.944

13.944

13.944

20.984

20.984

20.984

20.984

20.984

20.984

20.984

20.984

20.984

24.003

24.003

24.003

24.003

24.003

24.003

24.003

24.003

24.003

24.003

24.003

24.003

26.115

26.115

26.115

26.115

26.115

26.115

26.115

26.115

26.115

26.115

26.115

26.115

13.615

13.615

13.615

16.339

16.339

16.339

16.339

16.339

16.339

16.47

16.47

16.47

16.47

19.849

19.849

19.849

19.849

19.849

19.849

19.849

19.849

16.47

16.47

16.47

16.47

19.849

19.849

19.849

19.849

19.849

19.849

19.849

19.849

6.781

6.781

6.781

8.369

8.369

8.369

8.369

8.369

8.369

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

8.205

6.834

6.834

6.834

7.969

7.969

7.969

7.969

7.969

7.969

8.264

8.264

8.264

8.264

11.644

11.644

11.644

11.644

11.644

11.644

11.644

11.644

8.264

8.264

8.264

8.264

11.644

11.644

11.644

11.644

11.644

11.644

11.644

11.644

19,866

19,976

20,262

21,736

22,000

22,286

23,364

23,650

23,980

34,210

34,430

34,760

35,090

35,640

35,970

36,300

36,630

38,610

38,940

39,270

39,710

38,874

39,226

39,534

39,886

40,568

40,876

41,228

41,668

43,890

44,220

44,572

45,012

30,536

30,712

30,976

32,472

32,736

33,022

34,340

34,760

35,200

49,280

49,500

49,380

50,160

50,710

51,040

51,370

51,700

54,890

55,200

5,550

55,990

55,528

55,880

56,188

56,540

57,200

57,508

57,860

58,300

61,864

62,194

62,546

62,986

RCDEngineering Data

Overflow gap

Out

In

port

L

H

Repair Door

W

h1

h2

350 350A

B

C


Drain

Make up

RCS Engineering Data

VIEW 1VIEW 2

PAGE 17 PAGE 18

INSTRUCTION FORTOWER FOUNDATION

1、Nomenclature:RCS-012ED R:Manufacture C：Closed circuit type S：Single side air inlet 012ED：Model code2、Nominal tons of cooling represents USGPM of water cooled from 95°F to 85°F at a 78°F entering wet-bulb temperature.3、RCS model is suitable for industrial cooling projects .4、The above CTI capacities are for single module and can apply to multiple modules for capacities.5、The above capacities are base on hot galvanized steel coils.6、Refer to selection software for more information.

NOTES

NOTES1、Cooling tower foundation can be concrete planks or piers. 2、For single module tower with length & width equal to or larger than 9.501 ft., additional supports should be added. 3、The surface of the foundation has to be level with a tolerance <± .016 ft.. 4、There should not be any blockage (up to 13.12 ft.) in front of the air inlets. 5、Dimension C is to allow for major pipe installation. Consult the factory if there is any need for multiple unitsNotes:

L – Tower length; W – Tower width A – Foundation length; B – Foundation width

The normal tower foundation layout for single module tower with length & width less than 9.5 ft.

The tower foundation layout for single module tower with length & width equal to or larger than 9.5 ft.

RCS-012ED

RCS-012EG

RCS-013ED

RCS-013EG

RCS-062ED

RCS-062EG

RCS-063ED

RCS-063EG

RCS-132ED

RCS-132EG

RCS-133ED

RCS-133EG

RCS-153ED

RCS-153EG

RCS-154HD

RCS-154HG

71

78

85

92

110

121

124

138

128

142

152

167

245

270

298

337

3

5

5

5

5

5

5

7.5

5

7.5

7.5

10

7.5

10

10

15

16,960

23,320

23,320

27,560

27,560

36,040

36,040

38,160

38,160

44,520

40,280

48,760

46,640

50,880

50,880

57,240

206

206

206

206

285

285

285

285

365

365

365

365

439

439

528

528

2

2

2

2

2

2

2

2

3

3

3

3

3

3

5

5

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

5

4

4

4

4

4

4

4

5

5

5

5

5

5

5

5

5

5.013

5.013

5.013

5.013

6.07

6.07

6.07

6.07

6.07

6.07

6.07

6.07

7.382

7.382

7.382

7.382

7.382

7.382

7.382

7.382

8.563

8.563

8.563

8.563

9.501

9.501

9.501

9.501

11.614

11.614

11.614

11.614

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

13.615

16.339

16.339

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

6.781

8.369

8.369

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

6.834

7.696

7.696

2,860

2,915

2,970

3,080

3,806

3,850

4,070

4,114

4,312

4,356

4,576

4,686

6,930

7,172

8,096

8,250

4,840

4,884

4,950

5,302

6,842

6,886

7,194

7,238

7,722

7,766

8,096

8,206

12,012

12,254

13,310

13,464

Model Nominal tons

gpm cfm

Fan Spray Pump

PowerMotor Power

HP

AirflowRate

HP

L W H

Water Flow Rate

Shipping weight


ft.ft.inchinch ft.

h1

ft.

h2

ft. ibs. ibs.

OutletInlet

ModelL W A B C

RCD-34 series

RCD-36 series

RCD-38 series

RCD-39 series

RCD-413E series

RCD-413H series

RCD-414 series

RCD-433E series

RCD-433H series

RCD-434 series

7.382

8.123

9.764

9.764

9.764

9.764

11.877

11.877

11.877

13.944

12.441

15.722

17.126

20.984

24.003

24.003

24.003

26.115

26.115

26.115

8.366

9.107

10.748

10.748

10.748

10.748

12.861

12.861

12.861

14.928

13.261

16.542

17.946

21.804

24.823

24.823

24.823

26.935

26.935

26.935

≥ 1.148

≥ 1.148

≥ 1.148

≥ 1.148

≥ 1.640

≥ 1.640

≥ 1.640

≥ 1.640

≥ 1.640

≥ 1.640

1

1

1

1

1-1/2

1-1/2

1-1/2

1-1/2

1-1/2

1-1/2

2

2

2

2

2-1/2

2-1/2

2-1/2

2-1/2

2-1/2

2-1/2

2

2

2

2

2-1/2

2-1/2

2-1/2

2-1/2

2-1/2

2-1/2

Outline dimension（ft.）

Foundation size（ft.） Inlet

（inch）Outlet（inch）

Drain(inch)

Overflow(inch)

Replenishment（inch）

ModelL W A B C

Outline dimension（ft.）

Foundation size（ft.） Inlet

（inch）Outlet（inch）

Drain(inch)

Overflow(inch)

Replenishment（inch）

Instructions for tower foundation RCS-type

RCS-012EDRCS-012EGRCS-013EDRCS-013EGRCS-062EDRCS-062EGRCS-063EDRCS-063EGRCS-132EDRCS-132EGRCS-133EDRCS-133EGRCS-153EDRCS-153EGRCS-154HDRCS-154HG

5.0135.0135.0135.0136.076.076.076.076.076.076.076.077.3827.3827.3827.382

7.3827.3827.3827.3828.5638.5638.5638.5639.5019.5019.5019.50111.61411.61411.61411.614

5.9975.9975.9975.9977.0547.0547.0547.0547.0547.0547.0547.0548.3668.3668.3668.366

8.2028.2028.2028.2029.3839.3839.3839.38310.32110.32110.32110.32112.43412.43412.43412.434

≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148≥ 1.148

4444444555555555

4444444555555555

1111111111111111

2222222222222222

2222222222222222

4

4

5

6

6

8

8

6

8

8

4

4

5

6

6

8

8

6

8

8

Instructions for tower foundation RCD-type

Repair Door

W

h1

h2

Out

In

Overflow gap

HL350

A

B

C

(inch)

Thread steel

7.87’’ *7.87’’ *0.47’’

(inch)7.87’’ *7.87’’ *0.47’’


Drain

Make up

Introduction

Basic steps ( Leave as shown on Catalog )I would make the Item 1: look like this

PAGE 19 PAGE 20

SPECIAL FEATURES FOREASY SITE ASSEMBLE & SHIPPING

Standard Containers Shipment（20′GP, 40′GP）

⑧

②

⑦②

⑥

⑦

① ①

⑤③

④

④

RER’s medium and large size cooling towers provide special

features for site assemble and shipping. It reduces the number

of man hours of site installation as about 70% of the production

is completed at the factory including those complicated

sub-assemblies allowing large components to be shipped in

semi-knocked down form to fit in containers for easy site

assembly and lower shipping cost.

Step 1: Manually (or use small simple hoist) install the bottom

frame item 5, then items 3 and 4.

Step 2: Install item 1, the coil with heavy duty crane.

Step 3: Install item 2, the fill with heavy duty crane.

Step 4:Manually (or use small simple crane) install the columns and

item 6 the fan support, and then complete the installation

of the frame.

The above a just a general description. It is a must to install

according to the "installation manual" strictly.

Step 5:Install item 8 the fan with a small simple hoist.

Item 1: The Coil fits into shipping containers and is to be

transported by forklift or crane.

Item 2: The fill will consist of 2 to 4 modules to fit into

shipping container and is to be transported by forklift or

crane.

Items 3 thru 8: Form the inner structure of the tower

consisting of the fan, spray sub-assemblies etc. All are designed

to be shipped semi knocked down for ease of assembly.

Diagram① Coil

② Fill

③ Bottom basin

④ Spray pump

⑤ Bottom Frame

⑥ Column and Fan Support

⑦ Frame

⑧ Fan


PAGE 22

FACTORS TO BE CONSIDERED FOR DESIGN AND SELECTION

Cooling medium and make up waterThe fluid cooling medium in the closed-circuit cooling tower has to be

compatible with the cooling coil material to prevent corrosion.

The system water going thru the coil has to be treated to meet with the

water quality requirements.

Maintenance of water distribution systemAs water, will evaporate during operation with minerals and impurities

deposited in the pan, the water should be maintained regularly (pH

6.5 – 8.5). It is recommended to clear the pan once every week in

summer time and once every two weeks in winter time.

Make up water rate ≈ 1.5%

Application requirements

Points to be considered for piping system

To stay away from acidic exhaust air, explosive dust, excessive soot and

excessive water vapor areas which may affect the operation of the towers.

When installed close to buildings, the air inlets need to stay away up

to 16.4 ft.

When installed inside a well, need to consider the effect of short circuiting.

Air induction device can be considered.

Piping and valves should be installed below the operating water level of the

cooling tower to prevent overflow and air suction;

Pump should be designed with sufficient lift ;

The design working pressure of the interface flange is 145 psi and all piping

should be well supported but not on the tower.

Control optionsWhen more than one tower is running, each tower can be programmed

to cycle on and off and the fans can be programmed to operate at

different speed (50% or 100%) or with variable speed control.

Able to change the water spray flow rate (only applicable to spraying

water temperature lower than 104˚F)

Keep circulating the water and make sure that the circulating water

temperature is not lower than 44.6 ˚F. Electric immersion heater may be

installed in the water tank. To add antifreeze in the water to prevent from

freezing, the ratio of solution is subject to ambient temperature.

How to prevent the cooling coil of close circuit tower from freezing:

0 10 20 30 40 50 58 80 90 100

0 -3.5 -8

-15 -24 -36 -48 -47 -29 -13

3225.717.6+5

-11.2-32.8-54.4-52.6-20.28.6

Glycol（wt%）

Freezing point（℃）

Fahrenheit（℉）


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