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PRODUC T CATALOGUE

RCC Evaporative Condensers

1 PRODUCT INTRODUCTION

2 BENEFITS

4 CONSTRUCTION DETAILS

6 CUSTOM FEATURES & OPTIONS

8 ACCESSORIES

9 SELECTION

12 ENGINEERING DATA

16 STRUCTURAL SUPPORT

18 ENGINEERING SPECIFICATIONS

contents

The RCC Evaporative Condenser is being offered to the

market, complementing and completing BAC’s already

impressive array of products. The breadth of its tonnage range,

48 – 775 ammonia tons, makes it an excellent choice for either

replacement opportunities or new construction/expansion

projects.

Superior Pultruded Composite

Low Energy Consumption

Low Height Installations

Easy Maintenance

Low Installation Costs

Ideal Replacement Unit

N O TA B L E F E AT U R E S I N C LU D E :

Bene!ts

› Low Energy Consumption RCC evaporative condensers minimize the energy consumption of

the entire system by providing the lowest condensing temperatures.

Owners save money while conserving natural resources and reducing

environmental impact.

RCC Evaporative Condensers provide the heat rejection required at the

lowest possible energy via:

High e#ciency, low horsepower axial fans

Premium e#cient/VFD duty motors (standard)

› Easy Maintenance EASY ACCESS — Removable louvres provide easy access to the unit

interior to adjust the $oat valve, clean the strainer, or $ush the basin.

Removable Coil Casing end panels !tted with removable knobs allow for

visual inspection and cleaning of the coil.

EASY BRANCH REMOVAL SYSTEM — Water distribution branch removal

system that requires no tools.

HYGIENIC COLD WATER BASIN — The cold water basin is sloped to

eliminate stagnant water and reduce biological growth. Additionally,

the suction strainer is easily removable to simplify maintenance.

FAN MOTORS — The fan motors for the RCC are vertically mounted

on an adjustable track. The base is easily moved to aid belt tensioning

and changing. Direct Drive motors are mounted above the unit and the

arrangement provides easy access to the motor.

Easy Branch Removal System

Easy Access - removable casing side panels

Fan motor outside air stream, easily accessible

2 P R O D U C T C A T A L O G U E : R C C E V A P O R A T I V E C O N D E N S E R

› Low Installation Cost SELF-ALIGNING — The coil section self aligns with the basin section. This

feature signi!cantly reduces the time required to rig the RCC.

SUPPORT — All models mount directly on three parallel I-beams and

ship complete with motors and drives factory aligned.

MODULAR DESIGN — Models can also ship in multiple sections to

minimize the size and weight of the heaviest lift, allowing for the use of

smaller, less costly cranes.

EXTERNAL SERVICE PLATFORM, LADDER, SAFETY CAGE, AND GATE

(OPTIONAL) — For external service, an access door platform can be

added to the unit when purchased or as an aftermarket upgrade.

Ladders, safety cages, and safety gates are also available. All components

meet OSHA requirements.

› Long Service Life MATERIALS OF CONSTRUCTION — The RCC Evaporative Condenser

is made of Pultruded Composite Fibreglass to meet the corrosion

resistance and budgetary requirements of any project.

The use of high strength Pultruded Composite components for the

primary structure combined with BAC’s patented “Bonded Panel to

Post Connection” o0er many advantages over conventional hand laid

!breglass construction options.

› Reliable Year-Round Operation BEARINGS — Minimum L

10 bearing life of 100,000 hours delivers

years of trouble free service.

NOZZLES — The RCC uses large ori!ce non-clog nozzless to ensure the

coil is completely wetted, thereby delivering optimum heat transfer.

DRY OPERATION — Operating the unit with the spray water o0

eliminates winter operating concerns.

Total Lower Installation Cost

Strength Pultruded Composite

P R O D U C T C A T A L O G U E : R C C E V A P O R A T I V E C O N D E N S E R 3

Construction Details

2

3

7

9

1

5

6

4

4

Sectional Air Inlet Louvre System

Corrosion resistant

Maintenance free

UV-resistant !nish

Easy to remove sections

Cold Water Basin Sloped for easy cleaning

Suction strainer with removable anti-vortex hood

accessible from the louvre face

Adjustable water make-up assembly

Quick !ll connection supplied as standard

Recirculating Spray Water Pump (NOT SHOWN)

Close coupled, bronze !tted centrifugal pump

Totally enclosed fan cooled (TEFC) motor

Bleed line with metering valve installed from pump

discharge to over$ow

Access Doors Easily removable casing end panels.

Easiily removable louvres around the perimeter of the

condenser.

High Strength Composite Construction

Pultruded Composite !brelass construction

High corrosion resistance

Fan Drive Power Train Premium quality belt

Heavy-duty bearings (L10

100,000 hour rating)

Premium e#cient/VFD duty motors are standard

Low HP Axial Fan(s) High e#ciency

Corrosion resistant aluminum fan hub with

polypropelyne blades.

Water Distribution System Tool-less removal of spray branches

Overlapping spray patterns ensure proper water

coverage

Large ori!ce, non-clog, spray nozzles

Coil Continuous serpentine, steel tubing

Hot-dip galvanized after fabrication (HDGAF); Type 304

or 316 Stainless Steel optional

Pneumatically tested at 26 bar

Sloped tubes for free drainage of $uid

61

2

3

4

7

8

9

5

5

› Construction Options

STANDARD CONSTRUCTION:

High strength pultruded composite components for the

primary structure combined with patented bonded panel to

post connection.

The mechanical support and other steel ancillary elements

will be made from type 304 stainless steel.

OPTIONAL ALL TYPE 316 STAINLESS STEEL

CONSTRUCTION:

The mechanical support and other steel ancillary elements

on the condenser can be constructed of Type 316 stainless

steel for added corrosion resistance .

COLD WATER BASIN:

The RCC Evaporative Condenser cold water basin is

constructed of !breglass reinforced polyester. The basin is

sloped to ensure that there is no stagnant water to reduce

the risk of bacterial growth.

Optional: Units can be supplied without cold water basin for

!eld assembly on a concrete tank. A unit supplied without

cold water basin excludes the basin, louvres, legs, strainer,

strainer and make-up assembly.

Features & OptionsC U S T O M

Serpentine Coilpentine CoilSerpen

› Coil Con!gurations

NOTE:

All BAC standard serpentine coils are designed to

be drainable.

STANDARD SERPENTINE COIL:

The standard cooling coil is constructed of continuous

lengths of all prime surface steel, hot-dip galvanized

after fabrication (HDGAF). The galvanizing is on the

outside surface. The coil is designed for low pressure

drop with sloping tubes for free drainage of $uid. Each

coil is pneumatically tested at 26 bar.

OPTIONAL STAINLESS STEEL COIL:

Coils are available in Type 304 stainless steel and 316

stainless steel for specialised applications. The coil is

designed for low pressure drop with sloping tubes for

free drainage of $uid. Each coil is pneumatically tested

at 26 bar.


› Redundant Pump OperationAll RCC models are available with optional secondary pump.

This pump can be switched easily and maintained while the

unit remains in operation.

› Extended Lubrication Lines (STANDARD)

Extended lubrication lines are standard for lubrication of the

fan shaft bearings on units with belt driven systems.

› Containerized For Export RCC 7’ x 7’ and 7’ x 10.5’ units are available for export.

Engineered for:

The worldwide export market

Maximum capacity

Designed to !t a single unit in a standard container

Easy maintenance

Reliability

Lowest shipping costs!

Units are factory assembled and require only minimal

assembly and rigging!

R C C C U S T O M F E AT U R E S A N D O P T I O N S C O N T I N U E D »

› Low Sound Operation (OPTIONAL)

For very sound sensitive installations, a low sound

fan option is available to reduce the sound levels

generated from the unit with minimal impact on thermal

performance.

Extended Lubrication Lines

as Standard


Accessories

› Pre-Assembled Platforms, Ladders & Safety GateModular external platforms with safety gates are pre-assembled at the

factory to ensure that every component will !t and function as described.

The platform will attach quickly in the !eld with minimal fasteners. Platforms

can be added at the time of order or as an aftermarket item.

› Basin HeatersEvaporative condensers exposed to below freezing ambient temperatures

require protection to prevent freezing of the water in the cold water basin

when the unit is idle. Factory-installed electric immersion heaters, which

maintain 4.4°C water temperature, are a simple and inexpensive way of

providing such protection.

› Electric Water Level Control PackageThe electric water level control replaces the standard mechanical make-

up valve when more precise water level control is required. This package

consists of a conductance-actuated level control mounted in the basin and a

solenoid activated valve in the make-up water line. The valve is slow closing

to minimize water hammer.

Pre-Assembled Platform Ladder, and Safety Gate

Basin Heater

› Vibration Cutout SwitchA factory mounted vibration cutout switch is available to e0ectively protect against equipment failure due to excessive vibration of

the mechanical equipment system. BAC can provide either a mechanical or solid-state electronic vibration cutout switch in a NEMA 4

enclosure to ensure reliable protection. Additional contacts can be provided on either switch type to activate an alarm.

› Basin Sweeper PipingBasin sweeper piping is an e0ective method of eliminating sediment that may collect in the cold water basin of the unit. A piping

system is provided for connection to side stream !ltration equipment (connection between sump and !lter done by others).


Selection

The method of unit selection are provided on the following pages. The heat rejection method is always recommended and the

manual selection is described below.

› Heat Rejection MethodIn a mechanical refrigeration system, the function of an evaporative condenser is to reject heat to the environment. The

heat to be rejected is the sum of the heat input at the evaporator and the energy input at the compressor. For a given

set of operating conditions, the energy input through the compression process can vary. Therefore, in order to accurately

determine the proper evaporative condenser required, it is necessary to establish the compressor energy input as well as

the heat absorbed in the evaporator.

› Selection ProcedureThe base heat rejection of the RCC Evaporative Condenser is shown in Table 1. Tables 2 and 3 present capacity factors to be

applied to the system heat rejection for various condensing temperatures, entering wet-bulbs, and refrigerants.

Establish total heat rejection required in kilowatts (kW):

Total heat rejection = compressor evaporator capacity (kW) + compressor BHP (kW).

Determine the refrigerant and design conditions for condensing temperature and entering wet-bulb temperature.

Using the appropriate table for the system refrigerant and model (Tables 2 or 3), determine the capacity factor for the

design condensing temperature and entering wet-bulb temperature.

Multiply the total heat rejection by the capacity factor determined in the previous step.

From Table 1, select the evaporative condenser whose base heat rejection equals or exceeds the corrected heat

rejection calculated in the previous step.

NOTE: Consult your local BAC Representative for evaporative condenser selections for systems utilising the following:

Hydrocarbon refrigerants such as propane, butane, or propylene

Centrifugal compressors

Rotary screw compressors with water cooled oil coolers

Ammonia evaporative condensers with desuperheaters

Halocarbon evaporative condensers with subcooling


TA B L E 1 : B A S E H E AT R E J E C T I O N

Model Number

Base Heat

Rejection

(kW) Model Number

Base Heat

Rejection

(kW) Model Number

Base Heat

Rejection

(kW)

RCC0505-0-F 169 RCC0808-2-K 804 RCC0710-3-L 1064

RCC0505-0-G 185 RCC0808-2-L 846 RCC0710-3-M 1094

RCC0505-1-F 224 RCC0808-3-K 886 RCC0812-2-L 1220

RCC0505-1-G 246 RCC0808-3-L 962 RCC0812-2-M 1296

RCC0505-2-F 268 RCC0909-2-K 973 RCC0812-3-L 1343

RCC0505-2-G 293 RCC0909-2-L 1083 RCC0812-3-M 1447

RCC0505-2-I 331 RCC0909-3-L 1175 RCC0812-3-N 1472

RCC0505-3-I 367 RCC0909-3-M 1231 RCC0913-2-M 1532

RCC0505-3-J 377 RCC1010-2-L 1264 RCC0913-2-N 1599

RCC0606-2-G 389 RCC1010-2-M 1351 RCC0913-3-M 1678

RCC0606-2-I 441 RCC1010-3-L 1392 RCC0913-3-N 1765

RCC0606-2-J 479 RCC1010-3-M 1499 RCC0913-3-O 1806

RCC0606-3-I 486 RCC1010-3-N 1534 RCC1015-2-N 1906

RCC0606-3-J 535 RCC1111-2-M 1581 RCC1015-2-O 1988

RCC0606-3-K 545 RCC1111-2-N 1642 RCC1015-3-N 2086

RCC0707-2-I 558 RCC1111-3-M 1741 RCC1015-3-O 2174

RCC0707-2-J 614 RCC1111-3-N 1831 RCC1015-3-P 2244

RCC0707-2-K 653 RCC1111-3-O 1865 RCC1116-2-O 2309

RCC0707-3-J 677 RCC0710-2-J 823 RCC1116-2-P 2418

RCC0707-3-K 729 RCC0710-2-K 887 RCC1116-3-O 2525

RCC0707-3-L 743 RCC0710-2-L 969 RCC1116-3-P 2728

Condensing

Pressure (kPa)Condens-

ing Temp

(°C)

Entering Wet-Bulb Temperature (°C)

R717 18 19 20 21 22 23 24 25 26 27 28

1130.9 29 1.51 1.63 1.78 1.97 2.21 2.54 2.99 3.67

1165.4 30 1.38 1.48 1.61 1.76 1.95 2.2 2.55 3.04 3.82

1200.6 31 1.25 1.34 1.43 1.55 1.69 1.87 2.1 2.41 2.84 3.7

1236.7 32 1.16 1.23 1.31 1.41 1.53 1.67 1.86 2.09 2.42 3.03 3.63

1273.5 33 1.07 1.13 1.19 1.27 1.36 1.47 1.61 1.78 2 2.35 2.7

1311.2 34 1 1.05 1.1 1.17 1.25 1.34 1.45 1.59 1.76 2.03 2.3

1349.8 35 0.93 0.97 1.02 1.07 1.13 1.21 1.3 1.4 1.53 1.72 1.9

1389.2 36 0.87 0.91 0.95 1 1.05 1.11 1.19 1.28 1.38 1.53 1.68

1429.4 37 0.82 0.85 0.88 0.92 0.97 1.02 1.08 1.15 1.23 1.35 1.46

1479.6 38 0.77 0.8 0.83 0.86 0.9 0.95 1 1.06 1.13 1.22 1.32

1512.6 39 0.73 0.75 0.78 0.81 0.84 0.88 0.92 0.97 1.03 1.1 1.18

1555.6 40 0.69 0.71 0.73 0.76 0.79 0.82 0.86 0.9 0.95 1.02 1.08

1599.5 41 0.65 0.67 0.69 0.72 0.74 0.77 0.8 0.84 0.88 0.93 0.98

TA B L E 2 : H E AT R E J E C T I O N C A PA C I T Y FA C T O R S – R - 7 1 7 ( A M M O N I A )


› Selection Example

GIVEN:

R-717 refrigerant

Compressor evaporator capacity = 280 kW

Compressor kW = 58

Condensing temperature = 35°C

Entering wet-bulb temperature = 24°C

› Solution Determine the total heat rejection:

Compressor evaporator capacity = 280 kW

Compressor BHP input = 58 kW

Total heat rejection = 338 kW

From Table 2, the heat rejection capacity factor for R-717 at

35°C condensing temperature and 24°C entering

wet-bulb temperature is 1.3.

Multiply: 338 kW x 1.3 = 439.4 kW

From Table 1 select a unit with a base heat rejection equal to

or greater than 439.4 kW:

Model RCC0606-2-I

Contact your local BAC Representative for assistance with alternate refrigerant selections.

Condensing

Pressure (kPa)Condens-

ing Temp

(°C)

Entering Wet-Bulb Temperature (°C)

R-22 R-134a 18 19 20 21 22 23 24 25 26 27 28

1162.9 748.2 29 1.69 1.83 2 2.21 2.49 2.85 3.36 4.13

1193.9 770.2 30 1.55 1.67 1.81 1.98 2.2 2.48 2.86 3.42 4.3

1225.5 792.7 31 1.41 1.5 1.61 1.74 1.9 2.1 2.36 2.71 3.19 4.17

1257.7 815.7 32 1.31 1.38 1.48 1.59 1.72 1.88 2.09 2.36 2.72 3.4 4.09

1290.5 839.2 33 1.2 1.26 1.34 1.43 1.53 1.66 1.81 2 2.25 2.64 3.04

1323.9 863.2 34 1.12 1.18 1.24 1.32 1.4 1.51 1.63 1.79 1.99 2.29 2.59

1358.0 887.7 35 1.04 1.09 1.14 1.2 1.27 1.36 1.46 1.58 1.72 1.93 2.14

1392.7 912.7 36 0.98 1.02 1.07 1.12 1.18 1.25 1.34 1.43 1.56 1.72 1.89

1428.0 938.3 37 0.92 0.95 0.99 1.04 1.09 1.15 1.21 1.29 1.39 1.51 1.64

1464.0 964.3 38 0.87 0.9 0.93 0.97 1.02 1.07 1.13 1.19 1.27 1.38 1.48

1500.6 990.9 39 0.82 0.84 0.87 0.91 0.94 0.99 1.04 1.09 1.16 1.24 1.32

1528.0 1018.1 40 0.77 0.8 0.83 0.85 0.89 0.93 0.97 1.02 1.07 1.14 1.21

1575.9 1045.9 41 0.73 0.75 0.78 0.8 0.83 0.87 0.9 0.94 0.99 1.05 1.1

TA B L E 3 : H E AT R E J E C T I O N C A PA C I T Y FA C T O R S – R - 2 2 , R 1 3 4 A


Engineering Data

Face

RCC 8’ x 8’ to 11’ x 11’Units

Plan

RCC 8’ x 8’ to 11’ x 11’ Units

Face


Plan


R C C

1. Coil Inlet and Outlet Connections; 2. Make-up; 3. Quick-!ll; 4. Over$ow; 5. Drain; 6. Access Door; 7. Fan Motor; 8. Recirculation Spray Pump


Nom.

Box

Size

Model

Number

Approx.

R717

Operating

Charge

Fan

Motor

(kW)[2]

Air$ow

Rate

(m3/s)

Pump

Motor

(kW)

Spray

Flow Rate

(l/s)

Approximate Dimensions (mm) Approximate Weights (kg)

A B W L H

Heaviest

Section

Shipping

WeightOperating

Weight

@ Over$ow

Level

5’ X

5’

RCC0505-0-F 18 1.5 6.3 0.55 6.8

910

340

1675 1675

2600 690 1020 1900 2200

RCC0505-0-G 18 2.2 7.1 0.55 6.8 340 2600 690 1020 1900 2200

RCC0505-1-F 28 1.5 5.9 0.55 6.8 660 2900 880 1210 2100 2300

RCC0505-1-G 28 2.2 6.7 0.55 6.8 660 2900 880 1210 2100 2300

RCC0505-2-F 37 1.5 5.6 0.55 6.8 820 3010 1050 1380 2300 2600

RCC0505-2-G 37 2.2 6.4 0.55 6.8 820 3010 1050 1380 2300 2600

RCC0505-2-I 37 4.0 7.6 0.55 6.8 820 3010 1050 1380 2300 2600

RCC0505-3-I 46 4.0 7.3 0.55 6.8 1120 3315 1230 1560 2550 2800

RCC0505-3-J 46 5.5 8.3 0.55 6.8 1120 3315 1230 1560 2550 2800

6’ X

6’

RCC0606-2-G 54 2.2 8.2 1.1 9.8

970

820

1980 1980

3280 1550 1830 3150 3500

RCC0606-2-I 54 4.0 9.7 1.1 9.8 820 3280 1550 1830 3150 3500

RCC0606-2-J 54 5.5 11.1 1.1 9.8 820 3280 1550 1830 3150 3500

RCC0606-3-I 67 4.0 9.3 1.1 9.8 1120 3585 1800 2080 3500 3800

RCC0606-3-J 67 5.5 10.6 1.1 9.8 1120 3585 1800 2080 3500 3800

RCC0606-3-K 67 7.5 11.7 1.1 9.8 1120 3585 1800 2080 3500 3800

7’ X

7’

RCC0707-2-I 73 4.0 11.9 1.1 13.3

1025

820

2285 2285

3470 2050 2390 4100 4550

RCC0707-2-J 73 5.5 13.6 1.1 13.3 820 3470 2050 2390 4100 4550

RCC0707-2-K 73 7.5 15.1 1.1 13.3 820 3470 2050 2390 4100 4550

RCC0707-3-J 91 5.5 13.0 1.1 13.3 1120 3775 2390 2730 4600 5000

RCC0707-3-K 91 7.5 14.4 1.1 13.3 1120 3775 2390 2730 4600 5000

RCC0707-3-L 91 11.0 16.4 1.1 13.3 1120 3775 2390 2730 4600 5000

8’ X

8’

RCC0808-2-K 94 7.5 18.0 1.5 17.4

1075

820

2590 2590

3450 2790 3050 5250 5800

RCC0808-2-L 94 11.0 20.5 1.5 17.4 820 3450 2790 3050 5250 5800

RCC0808-3-K 118 7.5 17.2 1.5 17.4 1120 3755 3230 3500 5850 6400

RCC0808-3-L 118 11.0 19.6 1.5 17.4 1120 3755 3230 3500 5850 6400

9’ X

9’

RCC0909-2-K 121 7.5 21.1 1.5 22

1135

820

2895 2895

3580 3500 3810 6450 7200

RCC0909-2-L 121 11.0 23.9 1.5 22 820 3580 3500 3810 6450 7200

RCC0909-3-L 152 11.0 22.9 1.5 22 1120 3885 4060 4380 7200 8000

RCC0909-3-M 152 15.0 25.4 1.5 22 1120 3885 4060 4380 7200 8000

10

’ X 1

0’

RCC1010-2-L 152 11.0 27.5 2.2 27.1

1190

820

3200 3200

3820 4210 4580 7750 8650

RCC1010-2-M 152 15.0 30.5 2.2 27.1 820 3820 4210 4580 7750 8650

RCC1010-3-L 190 11.0 26.4 2.2 27.1 1120 4125 4910 5280 8700 9600

RCC1010-3-M 190 15.0 29.3 2.2 27.1 1120 4125 4910 5280 8700 9600

RCC1010-3-N 190 18.5 31.4 2.2 27.1 1120 4125 4910 5280 8700 9600

11

’ X 1

1’

RCC1111-2-M 185 15.0 34.7 3 32.8

1355

820

3500 3500

3985 5040 5450 9150 10250

RCC1111-2-N 185 18.5 37.2 3 32.8 820 3985 5040 5450 9150 10250

RCC1111-3-M 232 15.0 33.2 3 32.8 1120 4290 5880 6300 10300 11400

RCC1111-3-N 232 18.5 35.6 3 32.8 1120 4290 5880 6300 10300 11400

RCC1111-3-O 232 22.0 37.7 3 32.8 1120 4290 5880 6300 10300 11400

Do not use for construction. Refer to factory certified dimensions. This catalogue includes data current at

the time of publication, which should be reconfirmed at the time of purchase.

NOTES:

1. Dimensions showing location of refrigerant connections

are approximate and should not be used for prefabrication

of connecting piping.

2. Refrigerant inlet and outlet connections are beveled for

welding. Standard size for inlet and outlet connections is

100NB.

3. Maximum drain size is based on a bottom connection.

4. Standard make-up, drain, and over$ow connections are

MPT.

5. Unit height is indicative, for precise value please refer to

certi!ed drawing

6. Operating weight is for the unit with the water level at the

over$ow.

7. Dimensions, shipping and operating weights indicated

are for units without accessories. Consult your local BAC

representative for further information.


R C C E N G I N E E R I N G D ATA C O N T I N U E D »

Face

RCC 7’ x 10.5’ to 11’ x 16.5’ Units

Plan

RCC 7’ x 10.5 to 11’ x 16.5’ Units

1. Coil Inlet and Outlet Connections; 2. Make-up; 3. Quick-!ll; 4. Over$ow; 5. Drain; 6. Access Door; 7. Fan Motor; 8. Recirculation Spray Pump


NOTES:

1. Dimensions showing location of refrigerant connections

are approximate and should not be used for prefabrication

of connecting piping.

2. Refrigerant inlet and outlet connections are beveled for

welding. Standard size for inlet and outlet connections is

100NB.

3. Maximum drain size is based on a bottom connection.

4. Standard make-up, drain, and over$ow connections are

MPT.

5. Unit height is indicative, for precise value please refer to

certi!ed drawing

6. Operating weight is for the unit with the water level at the

over$ow.

7. Dimensions, shipping and operating weights indicated

are for units without accessories. Consult your local BAC

representative for further information.

Do not use for construction. Refer to factory certified dimensions. This catalogue includes data current at

the time of publication, which should be reconfirmed at the time of purchase.

Nom.

Box

Size

Model

Number]

Approx.

R717

Operating

Charge

Fan

Motor

(kW)[

Air$ow

Rate

(m3/s)

Pump

Motor

(kW)

Spray

Flow Rate

(l/s)

Approximate Dimensions (mm) Approximate Weights (kg)

A B W L H

Heaviest

Section

Shipping

WeightOperating

Weight

@ Over$ow

Level

7’ X

10

.5’

RCC0710-2-J 113 5.5 15.9 1.5 20.4

1310

820

2285 3270

4215 3070 3580 6150 6850

RCC0710-2-K 113 7.5 17.7 1.5 20.4 820 4215 3070 3580 6150 6850

RCC0710-2-L 113 11.0 20.1 1.5 20.4 820 4215 3070 3580 6150 6850

RCC0710-3-L 142 11.0 19.2 1.5 20.4 1120 4535 3580 4090 6850 7500

RCC0710-3-M 142 15.0 21.3 1.5 20.4 1120 4535 3580 4090 6850 7500

8’ X

12

’

RCC0812-2-L 146 11.0 24.0 2.2 26.5

1310

820

2590 3880

4145 4180 4560 7850 8700

RCC0812-2-M 146 15.0 26.6 2.2 26.5 820 4145 4180 4560 7850 8700

RCC0812-3-L 182 11.0 23.0 2.2 26.5 1120 4465 4850 5230 8750 9600

RCC0812-3-M 182 15.0 25.5 2.2 26.5 1120 4465 4850 5230 8750 9600

RCC0812-3-N 182 18.5 27.3 2.2 26.5 1120 4465 4850 5230 8750 9600

9’ X

13

.5’

RCC0913-2-M 187 15.0 31.1 3 33.5

1300

820

2895 4335

4205 5250 5710 9650 10800

RCC0913-2-N 187 18.5 33.4 3 33.5 820 4205 5250 5710 9650 10800

RCC0913-3-M 234 15.0 29.8 3 33.5 1120 4525 6090 6560 10800 12000

RCC0913-3-N 234 18.5 32.0 3 33.5 1120 4525 6090 6560 10800 12000

RCC0913-3-O 234 22.0 33.9 3 33.5 1120 4525 6090 6560 10800 12000

10

’ X 1

5’

RCC1015-2-N 233 18.5 38.5 4 41.3

1310

820

3200 4790

4400 6310 6870 11600 12950

RCC1015-2-O 233 22.0 40.5 4 41.3 820 4400 6310 6870 11600 12950

RCC1015-3-N 291 18.5 36.8 4 41.3 1120 4720 7360 7920 13000 14350

RCC1015-3-O 291 22.0 39.0 4 41.3 1120 4720 7360 7920 13000 14350

RCC1015-3-P 291 30.0 43.3 4 41.3 1120 4720 7360 7920 13000 14350

11

’ X 1

6.5

’ RCC1116-2-O 284 22.0 46.3 5.5 49.9

1510

820

3500 5245

4585 7560 8180 13700 15400

RCC1116-2-P 284 30.0 51.3 5.5 49.9 820 4585 7560 8180 13700 15400

RCC1116-3-O 355 22.0 44.3 5.5 49.9 1120 4905 8820 9450 15400 17100

RCC1116-3-P 355 30.0 49.1 5.5 49.9 1120 4905 8820 9450 15400 17100


Structural Support

The recommended support arrangement for the RCC Evaporative Condenser consists of parallel I-beams positioned as shown on the

drawing. Besides providing adequate support, the steel also serves to raise the unit above any solid foundation to assure access to

the bottom of the unit.

To support a RCC Evaporative Condenser on columns with an alternate steel support arrangement, consult your local BAC

Representative.

NOTES:

1. Spray recirculation pumps on RCC

units are supported separately to

the main unit. Refer to the support

drawing provided with your

submital package for the pump

weight and support details.

2. Contact your local BAC

Representative for multi-cell unit

steel support.

3. Support beams and anchor bolts

to be selected and installed by

others.

4. All support steel must be level at

the top.

5. Beam size should be calculated

in accordance with accepted

structural practice. The length of

the beam must be at least equal

to the length of the basin. Refer

to engineering data for basin

dimensions. Support data and

maximum allowed de$ection is

tabulated in the table to the right.

6. If vibration isolators are used, a

rail or channel must be provided

between the unit and the isolators

to provide continuous support.

Nominal-

Box Size A B C D

Max

Deflection

RC- 5’X5’ 1588 724

N/A

794 2

RC- 6’X6’ 1892 876 946 2

RC- 7’X7’ 2198 1029 1099 2

RC- 8’X8’ 2502 1181 1251 2

RC- 9’X9’ 2806 1333 1403 2

RC- 10’X10’ 3112 1486 1556 3

RC- 11’X11’ 3416 1638 1708 3

S I N G L E C E L L S TA N D A R D U N I T O N LY

Single Cell Standard Square Box Unit

R C C

All dimesions are in millimeters

Spray recirculation pump is

supported separately to the

unit. Please see NOTE #1.


Structural Support

For alternative RCC Evaporative Condenser supports such as concrete plinths or piers consult

the factory for a drawing of the recommended minimum support requirements and load

distributions.

Nominal

Box Size A B C D

Max

De$ection

RC- 7'X10.5' 2198 996 889 1099 3

RC- 8'X12' 2502 1147 1041 1251 3

RC- 9'X13.5' 2806 1302 1193 1403 3

RC- 10'X15' 3112 1454 1346 1556 3

RC- 11'X16.5' 3416 1608 1498 1708 3

S I N G L E C E L L S TA N D A R D U N I T O N LY

Single Cell Standard RectangularBox Unit

R C C

All dimesions are in millimeters

NOTES:

1. Spray recirculation pumps on RCC

units are supported separately to

the main unit. Refer to the support

drawing provided with your

submital package for the pump

weight and support details.

2. Contact your local BAC

Representative for multi-cell unit

steel support.

3. Support beams and anchor bolts

to be selected and installed by

others.

4. All support steel must be level at

the top.

5. Beam size should be calculated

in accordance with accepted

structural practice. The length of

the beam must be at least equal

to the length of the basin. Refer

to engineering data for basin

dimensions. Support data and

maximum allowed de$ection is

tabulated in the table to the right.

6. If vibration isolators are used, a

rail or channel must be provided

between the unit and the isolators

to provide continuous support.

Spray recirculation pump is

supported separately to the

unit. Please see NOTE #1.


1.0 Evaporative Condenser

1.1 General: Furnish and install, _____ factory assembled evaporative

condenser(s) of counter$ow draw-through design, with four sided air

inlet, conforming in all aspects to the speci!cations and schedule as

shown on the plans.

1.2 Capacity: The evaporative condenser(s) shall be warranted by

the manufacturer to have condensing capacity of __________ kW

heat rejection, operating with _________ refrigerant and _______ºC

condensing temperature and ________ºC entering wet-bulb

temperature.

1.3 Corrosion Resistant Construction (standard): All panels and

structural members shall be constructed from Fibre Reinforced

Polyester (FRP) and unless otherwise stated the steel components shall

be made from Type 304 Stainless Steel.

1.4 Units shall have self-aligning pan and casing section for easy

rigging.

1.5 Warranty: The manufacturer’s standard equipment warranty

shall be for a period of one year from the date of startup or eighteen

months from the date of shipment, whichever ends !rst. The

manufacturer shall, in addition, provide a 5-year mechanical drive

warranty covering the fans, fan shafts, bearings, sheaves, supports,

and fan motors.

1.6 Factory Testing: Equipment manufacturer shall be capable of testing

the operation of the condenser in the manufacturer’s own test facility.

1.7 Quality Assurance: The manufacture shall have a Management

System certi!ed by an accredited registrar as complying with the

requirements of ISO-9001 to ensure consistent quality of products

and services. Manufacturers that are not ISO-9001 certi!ed shall

provide an additional one-year warranty to the customer at no

additional cost.

2.0 Parts

2.1 Coil Casing Assembly

2.1.1 Coil Casing Section: Evaporative condenser coil section shall

consisting of a refrigerant condensing coil, a spray water distribution

system, and drift eliminators as indicated by the manufacturer.

2.1.2 The refrigerant condensing coil shall be fabricated using lengths

of all prime surface steel at the manufacturer’s own facility, and hot-dip

galvanized after fabrication (HDGAF) (Type 304 and type 316 stainless

steel, optional). The refrigerant condensing coil shall be tested at 26

bar air pressure under water. The refrigerant condensing coil shall be

designed for low pressure drop with sloping tubes for free drainage of

liquid refrigerant.

2.2 Water Distribution System

2.2.1 Spray Water Distribution: Water shall be distributed evenly over

the coil to ensure complete wetting of the coil at all times. The water

distribution system shall have an operating pressure of 115 kPa at the

evaporative condenser spray water inlet connection.

2.2.2 Nozzles: Large-ori!ce plastic distribution nozzles spaced across

the coil face area, shall provide overlapping, umbrella spray patterns.

Nozzles shall have a minimum of 0.25” (6.35 mm) protrusion inside

the spray branches to ensure unimpeded water $ow between regular

cleanings of the water distribution system. Nozzles shall be removable

without any tools for cleaning.

2.2.3 Spray Branches: Spray branches shall be held in place by

snap-in rubber grommets, allowing quick removal of complete

branches for cleaning or $ushing. Spray branches shall be

removable without the use of any tools and constructed out of

Schedule 40 PVC.

2.2.4 Removable PVC drift eliminators shall be positioned to

prevent moisture from leaving the evaporative condenser and

incorporate a minimum of three (3) changes in air direction.

2.3 Basin Assembly

2.3.1 Cold Water Basin: The cold water basin shall be constructed

of Fibre Reinforced Polyester (FRP) panels. The basin shall have four

sided air inlet and easily removable PVC air inlet louvres. The basin

shall be sloped towards the pump inlet and shall include: a drain/

clean-out connection; a steel strainer; a corrosion resistant make-up

valve; over$ow connection; water quick-!ll connection; and a water

recirculation pump assembly.

a. Drain/cleanout connection shall be located in the cold water

basin to allow removal of recirculating water.

b. Lift-out steel strainer shall be supplied with perforated openings

sized smaller than the water distribution nozzle ori!ces and an

integral anti-vortexing hood to prevent air entrainment.

Engineering SpecsSee our website at www.BaltimoreAircoil.co.za for an electronic copy of product engineering speci!cations.

18

c. Corrosion resistant make-up valve shall be supplied with a large

diameter, plastic $oat arranged for easy adjustment.

d. Over$ow connection shall be provided in the cold water basin to

protect against recirculating water spillage.

2.3.2 Water Recirculation Pump: shall be a close-coupled, bronze-!tted

centrifugal pump equipped with a mechanical seal, mounted seperate

from the basin and piped from the suction strainer to the water

distribution system. The pump shall have a bronze impeller. The pump

shall be installed so that it may drain freely when the basin is drained.

The pump assembly shall include bleed line to control the bleed rate

from the pump discharge to the over$ow connection. The pump motor

shall be totally enclosed fan cooled (TEFC) type suitable for _____ V,

____ phase, ______ Hz electrical service.

3.0 Mechanical Equipment

3.1 Fan(s): Fans shall be heavy-duty, axial $ow type with rigid

polypropelene blades and an aluminium alloy hub driven by a multi-

groove neoprene/polyester belt designed for a minimum of 150% of

the motor nameplate horsepower.

3.2 Fan Motors: Fan motors and drives shall be located at the top of

the unit to facilitate access without requiring access to the inside of

the unit. Fan motor bases on belt drive units shall be adjustable for

belt tensioning by adjusting easily accesible nuts. Fan motor(s) shall be

totally enclosed type, premium e#ciency/VFD ready with a 1.15 service

factor, suitable for _____ V, ____ phase, ______ Hz electrical service.

3.3 Bearings: Fan shafts shall be mounted in heavy-duty, self

aligning, grease-packed relubricatable ball bearings with eccentric

locking collars, designed for a minimum L10

life of 95,000 hours

(1,000,000 hours average life). Bearing lubrication lines shall be

extended to the exterior of the unit.

3.4 Sheaves: Fan and motor sheaves shall be fabricated from cast iron.

3.5 Mechanical Equipment Warranty: The fan(s), fan shaft(s),

bearings, mechanical equipment support and fan motor shall be

warranted against defects in materials and workmanship for a period

of !ve (5) years from date of shipment.

4.0 Optional Equipment Speci!cations

4.1 Basin Sweeper Piping: The cold water basin of the unit shall be

equipped with PVC sump sweeper piping for a separator.

4.2 Basin Water Level Control: The evaporative condenser manufacturer

shall provide an electric water level control (EWLC) with an LED

troubleshooting system. The system shall consist of water level

sensing and control units in quantities and locations as indicated on

the drawings. Each water level sensing and control unit shall consist

of the following: NEMA 4 enclosure with gasketed access cover; solid

state controls including all necessary relays and contacts to achieve

the speci!ed sequence of operation; stainless steel water level sensing

electrodes with brass holder. Provide PVC union directly below the

control enclosure to facilitate the removal and access of electrodes and

control enclosure. (Optional) The number and position of water level

sensing electrodes shall be provided to sense the following: high water

level, low water level, high water alarm level, low water alarm level, and

heater safety cutout.

4.3 Basin Heaters: Evaporative condenser shall be provided with basin

heaters to prevent freezing of the water in the cold water basin when

the evaporative condenser is idle. The basin heaters shall be selected

to maintain +4.4° C basin water temperature at a _____ambient

temperature and 16.1 km/hr wind speed. Basin heaters shall be electric

immersion type controlled by a remote thermostat with the sensing

bulb located in the basin water. Basin heaters shall be provided with

a factory-installed low water level cutout switch to prevent heater

operation unless the heater elements are fully submerged.

4.4 Vibration Cutout Switch: Provide an electronic remote reset

vibration switch with contact for BAS monitoring. Wiring shall be by

the installing contractor. The electronic vibration cutout switch shall

be set to trip at a point so as not to cause damage to the unit.

4.5 External Access: Evaporative condenser shall be provided with a

factory assembled, !eld-installed external platform with an access

ladder and handrails complying with OSHA standards and regulations

to reach to the access door of the evaporative condenser. External

platform shall have a 610 mm wide non-skid walking surface and 1,220

mm high safety railings. Optional safety cage and safety gate shall be

available to meet OSHA requirements as necessary.

19

COOLING TOWERS

CLOSED CIRCUIT COOLING TOWERS

ICE THERMAL STORAGE

EVAPORATIVE CONDENSERS

HYBRID PRODUCTS

PARTS & SERVICES

BAC AFRICABaltimore Aircoil Company SA (Pty) Ltd, Portland Road, Phillipi, Cape Town

Telephone: +27 (21) 371 7121, Fax: +27 (21) 374 2081

© 2011 Baltimore Aircoil Company

w w w . B a l t i m o r e A i r c o i l . c o . z a

Bulletin: ZA_RCC-01

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RCC Product Catalogue - Home | Baltimore Aircoil …baltimoreaircoil.co.za.dedi6.cpt3.host-h.net/sites/...› Low Installation Cost 9 SELF%ALIGNING — The coil section self aligns