Product & Application HandbookE U - VO LU M E I - 2 0 0 6

Welcome... to the first European edition of the BAC Product and Application Handbook. In an era of information transfer, we are excited to make available to you a unique compilation of industry knowledge and product application details. This handbook reflects our commitment to facilitate the application of our products, services and technical resources for higher system efficiency, environmental responsibility and safe operation. BAC has a rich history in the design and development of the world's largest range of evaporative cooling and ice thermal storage products. A specialised hygiene services initiative is also presented in support of these products. I hope you will find this publication to be a valuable resource and a service to the industry because temperature matters.

Sincerely,

Andreas G. Coumnas Managing Director - Europe

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ContentsTable of Contents

Table of Contents

Baltimore Aircoil Company . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .A1 Introduction to Heat Transfer Products . . . . . . . . . . . . . . . . . . . .A4 Open Cooling Towers . . . . . . . . . . . . . . . . . . . . . . . .B Overview & Engineering Considerations . . . . . . . . . .CT - B1 Series 3000D Open Cooling Towers . . . . . . . . . .S3000D - B9 TXV Open Cooling Towers . . . . . . . . . . . . . . . . . . . .TXV - B29 FXT Open Cooling Towers . . . . . . . . . . . . . . . . . . . . .FXT - B45 RCT Open Cooling Towers . . . . . . . . . . . . . . . . . . . .RCT - B57 IMT Open Cooling Towers . . . . . . . . . . . . . . . . . . . .IMT - B77 VTL Open Cooling Towers . . . . . . . . . . . . . . . . . . . .VTL - B97 VXT Open Cooling Towers . . . . . . . . . . . . . . . . . . .VXT -B115 Closed Circuit Cooling Towers . . . . . . . . . . . . . . . . .C Overview & Engineering Considerations . . . . . .CCCT - C1 VXI Closed Circuit Cooling Towers . . . . . . . . . . . . .VXI - C13 VFL Closed Circuit Cooling Towers . . . . . . . . . . . .VFL - C35 FXV Closed Circuit Cooling Towers . . . . . . . . . . . .FXV - C53 Water Saving Hybrid Wet-Dry Products . . . . . . . . . .D Overview & Engineering Considerations . . . . . . . . .WS - D1 HXI Hybrid Closed Circuit Cooling Tower . . . . . .HXI - D11 HFL Hybrid Closed Circuit Cooling Tower . . . . .HFL - D35 DFC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .DFC - D59 HXC Hybrid Condenser . . . . . . . . . . . . . . . . . . . . .HXC - D85 Evaporative Condensers . . . . . . . . . . . . . . . . . . . . . .E Overview & Engineering Considerations . . . . . . . . . .EC - E1 VXC Evaporative Condensers . . . . . . . . . . . . . . . . . .VXC - E13 VCL Evaporative Condensers . . . . . . . . . . . . . . . . . .VCL - E35 CXV Evaporative Condensers . . . . . . . . . . . . . . . . .CXV - E51 TSU ICE CHILLER . . . . . . . . . . . . . . . . . . . . . . . . . . F Thermal Storage Products . . . . . . . . . . . . . . . . . . . . .TSU - F1 TSU - M (Internal Melt Application) . . . . . . . . . . . . .TSU - F9 TSU - C/D (External Melt Application) . . . . . . . . .TSU - F19

Technical Resources . . . . . . . . . . . . . . . . . . . . . . . . .G Connection Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G2 Materials of Construction . . . . . . . . . . . . . . . . . . . . . . .TR - G4 Selection Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G5 The Value of Standards . . . . . . . . . . . . . . . . . . . . . . . . .TR - G6 Selection of Remote Sump Tank . . . . . . . . . . . . . . . . .TR - G7 Filtration Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G13 Sound Reduction Options . . . . . . . . . . . . . . . . . . . . . .TR - G14 Fundamentals of Sound . . . . . . . . . . . . . . . . . . . . . . .TR - G22 Motor Controls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G47 Plume Abatement . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G49 Formulas . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G51 Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G52 Application Guidelines . . . . . . . . . . . . . . . . . . . . . . . .TR - G53 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .TR - G61

Handbook ResourcesColour Coded Sections Vertical Identification Bars Sectional IconsOpen Cooling Towers Closed Circuit Cooling Towers Water Saving Hybrid Wet-Dry Products Evaporative Condensers ICE CHILLER Thermal Storage Products

Complete Product Brochures featuringProduct Introductions Benefits Construction Details Custom Features & Options Accessories Engineering Data Structural Support Engineering Specifications

Technical Resources

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For nearly seven decades Baltimore Aircoil Company has been dedicated to the development of innovative, cost effective heat transfer solutions for its customers. This has established BAC as the global leader of factory assembled evaporative heat rejection and thermal storage equipment.

DesignOngoing investment in research and development, combined with sophisticated R&D laboratory facilities enables BAC to consistently offer technology and products in advance of new industry demands.

SelectionBAC offers the widest array of factory assembled evaporative heat rejection and thermal storage equipment in the industry. Breadth of product enables BAC to provide its customers optimized solutions with regard to their specific needs. Whether an application calls for open or closed cooling circuits, axial or centrifugal fans, special materials of construction or unique dimensional considerations, BAC has the solution.

PerformanceAll BAC products are engineered to minimize lifecycle costs through a combination of low energy consumption and low maintenance. An extensive array of options addresses such issues as low sound or low water consumption requirements.

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How can we help?From employees to partners every action at BAC centers on you, the customer. Our service philosophy extends beyond customer service to embody a total service approach. So from application to installation to aftermarket needs, whether you are working with our representatives, the Product & Application Handbook or using www.BaltimoreAircoil.com, BAC has a tool to help.

BAC Sales ChannelBAC employs the most extensive and experienced network of manufacturers representatives to provide you unrivalled local support for your specific application needs. Integrated globally, the BAC network of representatives facilitates design support for projects coordinated on a local, national, or international scale.

BAC Product & Application HandbookA revolutionary tool for assisting with equipment application and selection requirements, it is the only place to find critical industry technical and product information together in one convenient format.

www. BaltimoreAircoil.comA proprietary online tool that allows access to resources and education to assist product evaluation, comparison and selection.

Product Information Selections Equipment Specifications Technical Information Rigging and Installation Manuals

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Heat Transfer ProductsEvaporative cooling products minimize the energy consumption of the entire system by providing lower operating temperatures than possible with comparably sized air-cooled equipment. BAC has a large selection of heat transfer products to offer, each of which falls into one of these five main categories:

Open Cooling TowersOpen cooling towers are a proven and cost-effective method of cooling condenser water loops and industrial processes. In operation, the condenser water (or process water) flows directly over the heat transfer surface of the open cooling tower. As air is introduced into the tower, a fraction of this water is evaporated, cooling the remaining water.

Closed Circuit Cooling TowersClosed circuit cooling towers keep the process fluid clean and contaminant free in a closed loop. This creates two separate fluid circuits: (1) an external circuit, in which spray water circulates over the coil and mixes with the outside air, and (2) an internal circuit, in which the process fluid to be cooled circulates inside the coil. During operation, heat is transferred from the warm fluid in the coil to the spray water, and then to the atmosphere as a portion of the water evaporates. In addition to chiller applications and industrial process cooling, closed circuit cooling towers are often used in heat pump loops, where closed loop cooling is preferred.

Water Saving Hybrid Wet-Dry ProductsWater saving and hybrid products are usually of the closed circuit type. The hybrid wet-dry products cool the liquid to be cooled by efficiently combining dry sensible air cooling with evaporative cooling. These products include two or more distinctive heat transfer surfaces or sections combined into one product optimising the use of ambient dry and wet bulb temperature. Low water and water treatment cost, vastly improved operational safety and virtual elimination of visible plume are the main advantages of intelligent water saving products.

Evaporative CondensersWhen applied to HVAC and light industrial systems, evaporative condensers provide lower condensing temperatures and compressor kW savings of up to 15 percent compared with traditional systems. In an evaporative condenser, refrigerant vapor is condensed in a coil, which is continually wetted on the outside by a recirculating water system. Air is circulated over the coil, causing a small portion of the recirculating water to evaporate. The evaporation removes heat from the vapor in the coil, causing it to condense.

Ice Thermal Storage ProductsIce thermal storage units are used to build and store cooling in the form of ice during periods of reduced cooling demand. This way the mechanical refrigeration system need not be sized on peak load but on "average" conditions. Hence a smaller refrigeration system with lower power requirements and a smaller refrigerant charge can be selected. Compared to conventional refrigeration systems, ice thermal storage systems generally have a higher compressor operating efficiency since the compressor will operate continuously at full capacity and not at fluctuating part load conditions. Ice thermal storage units can either be of the "internal" or "external" melt type. For "internal melt" only glycol solutions can be used as secondary refrigerant. "External melt" ice thermal storage units can use either direct refrigerant feed or glycol solutions.

Need help deciding which product to use?Contact your local BAC Balticare Representative for assistance.

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Open Cooling TowersOverview

Open Cooling Towers

Product Group DetailGeneral Information ................................................................................. B2 Principle of Operation .............................................................................. B2 Configuration ............................................................................................. B2 Water Distribution System ....................................................................... B2 Fan System ................................................................................................. B3 Capacity Range .......................................................................................... B3 Maximum Entering Water Temperature ................................................ B4 Typical Applications .................................................................................. B4 Product Line Overview Table .................................................................. B4 Engineering Considerations ..................................................................... B6

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General InformationOpen cooling towers provide evaporative cooling for many types of systems, and the specific application will largely determine which BAC Cooling Tower is best suited for a project. The Product Line Overview Table is intended as a general guide. Specialised assistance is available through your local BAC Balticare Representative.

Principle of Operation

Overview

Open cooling towers reject heat from water-cooled systems to the atmosphere. Hot water from the system enters the cooling tower and is distributed over the wet deck (heat transfer surface). Air is pulled or pushed through the wet deck, causing a small portion of the water to evaporate. Evaporation removes heat from the remaining water, which is collected in the cold water basin and returned to the system to absorb more heat. Each open cooling tower line, although operating under the same basic principle of operation, is arranged a little differently. See the schematics on the Product Line Overview Table for product specific details.

ConfigurationThere are two main configurations of factory assembled open cooling towers: crossflow and counterflow. In crossflow cooling towers, the water flows vertically down the wet deck as the air flows horizontally across it. In counterflow cooling towers, the water flows vertically down the wet deck as the air flows vertically up it.

Crossflow Configuration

Counterflow Configuration

Water Distribution SystemOpen cooling towers employ either gravity distribution or pressurised spray systems to distribute water over the wet deck surface. Gravity distribution systems, installed on BACs crossflow cooling towers, feature hot water basins mounted on top of the tower above the wet deck. A series of metering orifices in the floor of each hot water basin distribute the water as a function of the depth of the water in the basin. Gravity distribution systems generally require minimal pump head, can be inspected while the unit is in operation and are easy to access for routine maintenance and service. Spray distribution systems, employed on counterflow cooling towers, feature a series of pipes fitted with spray nozzles mounted inside the tower above the wet deck. These systems typically require 0,15 through 0,5 bar of water pressure at the water inlet and require the unit to be out of service for inspection and maintenance.

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Gravity Distribution Basin

Pressurised Spray Distribution

Open Cooling Towers

Fan SystemThe flow of air through most factory assembled evaporative cooling equipment is provided by one or more mechanically driven fans. The fan(s) may be axial or centrifugal, each type having its own distinct advantages. Axial fan units require approximately half the fan motor kilowatt of comparably sized centrifugal fan units, offering significant life-cycle cost savings. Centrifugal fan units are capable of overcoming reasonable amounts of external static pressure ( 125 Pa), making them suitable for both indoor and outdoor installations. Centrifugal fans are also inherently quieter than axial fans, although the difference is minimal and can often be overcome through the application of optional low sound fans and/or sound attenuation on axial fan units. Fans can be applied in an induced draft or a forced draft configuration.

Centrifugal Fans

Axial Fans

Induced Draft The rotating air handling components of induced draft equipment are mounted in the top deck of the unit, minimizing the impact of fan noise on near-by neighbors and providing maximum protection from fan icing with units operating in sub-freezing conditions. The air being drawn through the unit hereby discharges over the inducing fan. The use of corrosion resistant materials ensures long life and minimizes maintenance requirements for the air handling components. Forced Draft Rotating air-handling components are located on the air inlet face at the base of forced draft towers whereby fresh air is blown through the unit. This base fan position facilitates easy access for routine maintenance and service. Additionally, location of these components in the dry entering air stream extends component life by isolating them from the corrosive saturated discharge air.

Capacity RangeIn the following Product Line Overview Table, product capacity range is called out in terms of water flow capability at 35C/30C/21C. A nominal cooling tower capacity is defined at 35C entering water temperature to a 30C leaving water temperature at a 21C entering wet-bulb temperature.

... because temperature matters

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Nominal conditions are typical of conventional HVAC designs but will not apply to all projects. All water flow capacities shown are for a single cell; multiple cell units can be applied to achieve larger capacities.

Maximum Entering Water TemperatureAs previously stated, typical HVAC conditions call for an entering water temperature of approximately 35C. All BAC Cooling Towers are capable of withstanding temperatures of at least 50C with standard fill materials. For applications where the entering water temperature exceeds 50C, check the Product Line Overview Table to determine whether alternate fill materials are available for your project.

Overview

Typical ApplicationsA list of typical applications is provided in the Product Line Overview Table for your reference.

Product Line Overview TableSeries 3000-D TXV FXT

Principle of Operation

Configuration Water Distribution Fan System Capacity Range (Single Cell) Maximum Entering Water Temperature

Crossflow Gravity Axial Fan, Induced Draft 40 to 260 l/s 50 C standard wet deck 55C Alternative wet deck material

Crossflow Gravity Axial Fan, Induced Draft 10 tot 128 l/s 50 C standard wet deck 55C Alternative wet deck material

Crossflow Gravity Axial Fan, Forced Draft 3 tot 145 l/s 50 C standard wet deck 55C Alternative wet deck material

Typical Applications

Medium to large HVAC & industrial applications Replacement of field erected towers

Medium HVAC & industrial applications Counterflow unit replacements Crossflow unit replacements Tight enclosures & installations requiring a single air inlet

Small to medium industrial applications

1. Air in, 2. Air Out, 3. Hot Water In, 4. Cooled Water out, 5. Water; 6. Wet Deck Surface, 7. Cold Water Basin; 8. Water Distribution System; 9. Eliminators.

Note: For projects requiring water conservation and/or plume sensitive location, VXT and VTL cooling towers can be equipped with plume abatement coils (PAC) in combination with 3-way valve arrangement. Refer to your BAC Balticare representative for more details and selections.

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Note : BAC offers heat exchanger skids in combination with most of his open cooling tower products. These skids are available for both new installations or to retrofit on existing installations. The heat exchanger skid consists of a plate heat exchanger with pump and interconnecting piping and appendages. The skids are delivered on a heavy duty frame and with steel panel enclosure. Refer to your BAC Balticare representative for more details and selections.

Open Cooling Towers

RCT

IMT

VTL

VXT

Counterflow Pressurised Axial Fan, Induced Draft 40 to 145 l/s 55C Standard Wet Deck 65C w/Alternate Wet Deck Materials Small to medium industrial applications Dirty Water applications

Counterflow Pressurised Axial Fan, Induced Draft 45 to 560 l/s 55C Standard Wet Deck 65C w/Alternate Wet Deck Materials Large industrial applications Replacement of field erected towers with basinless units Dirty water applications.

Counterflow Pressurised Centrifugal Fan, Forced Draft 4 tot 90 l/s 55C Standard Wet Deck 65 C w/Alternate Wet Deck Materials Small to medium HVAC & Industrial applications Installations w/extremely low height requirements Indoor Installations High temperature industrial applications Tight enclosures & installations requiring a single air inlet

Counterflow Pressurised Centrifugal Fan, Forced Draft 1,6 to 1230 l/s 55C Standard Wet Deck 65C w/Alternate Wet Deck Materials Small to medium HVAC & industrial applications Indoor installations High temperature industrial applications Tight enclosures & installations requiring a single air inlet

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Engineering ConsiderationsLocationUnits must have an adequate supply of fresh air to the air inlet(s). When units are located adjacent to building walls or in enclosures, care must be taken to ensure that the warm, saturated discharge air is not deflected off surrounding walls or enclosures and drawn back to the air inlet(s).Warning: Each unit should be located and positioned to prevent the introduction of the warm discharge air and the associated drift, which may contain chemical or biological contaminants including Legionella, into the ventilation systems of the building on which the unit is located or those of adjacent buildings.

Overview

Note: For detailed recommendations on layout, please consult your local BAC Balticare Representative.

For VL and VX products, bottom screens or solid bottom panels may be desirable or necessary for safety, depending on the location and conditions at the installation site.

Piping and ValvesPiping must be sized and installed in accordance with good piping practice. All piping should be supported by pipe hangers or other supports, not by the unit. On open systems, in order to prevent basin overflow at shutdown and to ensure satisfactory pump operation at start-up, all heat exchangers and as much piping as possible should be installed below the operating level of the cooling tower. Some units may require flow balancing valves (supplied by others) at the hot water inlets to balance the flow to individual inlets and cells. External shutoff valves (supplied by others) may also be required if the system design necessitates the isolation of individual cells. When multiple cells are used on a common system, equalizing lines should be installed between the cold water basins to ensure balanced water level in all cells. It is good engineering practice to valve the inlet and outlet of each tower separately for servicing. The shut-off valves can be used, if necessary, to adjust any minor unbalanced condition in water flow to or from the units.

Capacity ControlVariable Frequency Drives (VFD) Installations which are to be controlled by Variable Frequency Drives (VFD) require the use of an inverter duty motor as designed IEC 34.1, which recognizes the increased stresses placed on motors by these drive systems. Inverter duty motors must be furnished on VFD applications in order to maintain the motor warranty. Fan motors must be furnished with thermal protection (either PTC sensors or coil thermostats normally open, or normally closed). The motor protection consists of temperature sensitive cutout devices embedded in the motor windings (minimum 3 per motor). BAC offers factory installed motor control packages including VFD drives. Refer to the section "Technical Resources, Motor Controls". Check with your local BAC Balticare representative for availability.Warning: When the fan speed is to be changed from the factory-set speed, including through the use of a variable speed control device, steps must be taken to avoid operating at or near fan speeds that cause a resonance with the unit or its supporting structure. At start-up, the variable frequency drive should be cycled slowly between zero and full speed and any speeds that cause a noticeable resonance in the unit should be locked out by the variable speed drive.

Fan Cycling Fan cycling is the simplest method of capacity control. The number of steps of capacity control can be increased using the Baltiguard Fan System, the independent fan motor option, or two-speed fan motors in conjunction with fan cycling (see the Custom Features & Options section of the

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appropriate product line to determine whether the Baltiguard Fan System or the independent fan motor option are available; two-speed motors are available for all products). These options provide substantial energy savings when compared to simple fan cycling.Warning: Rapid on-off cycling can cause the fan motor to overheat. It is recommended that controls be set to allow a maximum of 6 on-off cycles per hour.

Capacity Control Dampers (VTL and VXT Models Only) On centrifugal fan models, modulating capacity control dampers are available to provide close control of the leaving temperature. See Section "Accessories" or contact your local BAC Balticare representative.

Open Cooling Towers

Vibration Cut-out SwitchVibration cut-out switches are recommended on all axial fan installations. Vibration cut-out switches are designed to interrupt power to the fan motor and/or provide an alarm to the operator in the event of excessive vibration. BAC offers both electronic and mechanical vibration cut-out switches on all cooling towers.

Water TreatmentAs water evaporates in the unit, the dissolved solids originally present in the water remain in the system. The concentration of these dissolved solids increases rapidly and can cause scale and corrosion. In addition, airborne impurities and biological contaminants, including Legionella, may be introduced into the circulating water. To control all potential contaminants, a water treatment program must be employed. In many cases, a simple bleed-off may be adequate for control of scale and corrosion. However, biological contamination, including Legionella, can be controlled only through the use of biocides. Such treatment should be initiated at system startup, after periods of equipment shutdown, and continued regularly thereafter. Accordingly, it is strongly recommended a biocide treatment be initiated when the unit is first filled with water and continued regularly thereafter. For more information, consult the appropriate Operating and Maintenance Manual. When a water treatment program is employed, it must be compatible with construction materials. Batch feeding of chemicals into the unit is not recommended. If units are constructed with optional corrosion resistant materials, acid treatment may be considered; however, the water quality must be maintained within the guidelines set forth in the Operating and Maintenance Instructions.Note: Unless a common remote sump is utilised, each cell of a multi-cell installation must be treated as a separate entity, even if the cold water basins are equalised.

For complete Water Quality Guidelines, see the appropriate Operating and Maintenance Instruction Manual, available at www.baltimoreaircoil.com. For specific recommendations on water treatment, contact a competent water treatment supplier.

Sound LevelsSound rating data are available for all BAC models. When calculating the sound levels generated by a unit, the designer must take into account the effects of the geometry of the tower as well as the distance and direction from the unit to noise-sensitive areas. Whisper Quiet fans and intake and discharge sound attenuation can be supplied on certain models to provide reduced sound characteristics (see the Custom Features and Options section of the appropriate product line for details). The Baltiguard Fan System, two-speed motors, or variable frequency drives can also be used to reduce sound during periods of non-peak thermal loads. For more information on sound and how it relates to evaporative cooling equipment, see Section "Technical Resources, Fundamentals of Sound". For detailed low sound selections, please consult your local BAC Balticare Representative.

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WinterizationWhen a unit is shut down in freezing weather, the basin water must be protected by draining to an indoor auxiliary remote sump tank or by providing supplementary heat to the cold water basin. Supplementary heat can be provided by electric immersion heaters or in some cases, hot water, steam coils, or steam injectors. All exposed water piping, make-up lines, and spray pumps (if applicable) that do not drain at shutdown should be traced with electric heater tape and insulated. For remote sump applications, the spray water pump must be selected for the required flow at a total head which includes the vertical lift, pipe friction (in supply and suction lines) plus the required pressure at the inlet header of the water distribution system (14 kPa). A valve should always be installed in the discharge line from the pump to permit adjusting flow to the unit requirement. Inlet water pressure should be measured by a pressure gauge installed in the water supply riser at the spray water inlet, and adjusted to the specified inlet pressure.

Overview

Indoor Installations (applicable to VTL and VXT models only)Many indoor installations require the use of inlet and/or discharge ductwork. Units installed with inlet ductwork must be ordered with solid-bottom panels. Generally, intake ducts are used only on smaller units while the equipment room is used as a plenum for larger units. Discharge ductwork will normally be required to carry the saturated discharge air from the building. Both intake and discharge ductwork must have access doors to allow servicing of the fan assembly, drift eliminators, and water distribution system. All ductwork is supplied and installed by others and should be symmetrical and designed to provide even air distribution across the face of air intakes and discharge openings. Such ductwork may increase the external static pressure on the unit, requiring a larger fan motor to be installed. This external static pressure must be quantified (in Pa) to BAC to allow for suitable fan motor sizing.Warning: The discharge opening must be positioned to prevent the introduction of discharge air into the fresh air intakes serving the unit or the ventilation systems of adjacent buildings.

Note: Axial fan units are not suitable for indoor installations.

SafetyAdequate precautions, appropriate for the installation and location of these products, should be taken to safeguard the public from possible injury and the equipment and the premises from damage. Operation, maintenance and repair of this equipment should be undertaken only by personnel qualified to do so. Proper care, procedures and tools must be used in handling, lifting, installing, operating, maintaining, and repairing this equipment to prevent personal injury and/or property damage.

Wet Deck Surface CompatibilityBACs standard wet deck is constructed of plastic material. The wet deck surface is compatible with the water found in most evaporative cooling applications. The maximum allowable water temperature for each product is as shown in the following table.Product Line VTL VXT S3000-D TXV FXT IMT RCT Standard Wet Deck 55C 55C 50C 50C 50C 55C 55C High Temperature Wet Deck 65C 65C 55C 55C 55C 65C 65C FRP N/A N/A N/A N/A N/A 55C 55C

N/A = not applicable

For applications where the entering water temperature exceeds the limits shown above, contact your local BAC Balticare Representative for assistance.

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S3000D

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S3000D

Open Cooling Towers

Open Cooling Towers

Product DetailS3000D Open Cooling Towers ................................................................ B10 Benefits ...................................................................................................... B11 Construction Details ................................................................................ B13 Custom Features and Options ................................................................ B14 Accessories ............................................................................................... B16 Engineering Data ..................................................................................... B19 Structural Support .................................................................................. B24 Engineering Specifications ..................................................................... B27

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S3000D Open Cooling TowersCapacitySingle Cell Capacity: 40 260 l/s

S3000D

General DescriptionSeries 3000D Cooling Towers deliver independently verified, fully rated thermal performance over a wide range of flow and temperature requirements. Standard design features satisfy todays environmental concerns, minimize installation costs, maximize year-round operating reliability, and simplify maintenance requirements.

Key Featuresz

Low energy consumption Low installed cost Easy maintenance Reliable year-round operation Long service life Easy removable high efficient fill as standard Cold water basin is to be free draining

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z

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BenefitsLow Energy Consumptionz

Evaporative cooling equipment minimises the energy consumption of the entire system because it provides lower operating temperatures. The owner saves money while conserving natural resources and reducing environmental impact. The cooling towers provide the heat rejection required at the lowest possible energy input via:

z

Open Cooling Towers

- High efficiency, low kW axial fans - High efficiency easy removable heat exchange surface, which provides maximum air/water contact time at low air pressure drops - Variable Frequency Drives

Low Installed Costz

Support All models mount directly on two parallel I-beams and ship complete with motors and drives factory-installed and aligned. Modular Design Models S3-D728L through S3-D1056L and S3-D1132L through S3-D1301L ship in two sections to minimise the size and weight of the heaviest lift, allowing for the use of smaller, less costly cranes.

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Modular Design

Combined Inlet Shields

Reliable Year-Round Operationz

Belt Drive System utilizes special corrosion-resistant materials of construction and state-ofthe-art technology to ensure ease of maintenance and reliable year-round performance. Combined Inlet Shields prevent biological growth from sunlight, act as a filter for air borne impurities and debris and eliminate water splash out.

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Easy Removable FillThe fill removal system allows nesting the fill in place for cleaning or replacement. The fill section can easily be reached through the access hatch in the hot water basin, while the telescope fill supports allow for easy removal.

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S3000D

Sloped Cold Water Basin

Spacer Rod

Free Draining Cold Water BasinThe sloping cooling tower basin allows for free draining.

Long Service Lifez

Frame Construction Enables casing panels, critical links for long service life, to be constructed of corrosion-resistant, fiberglass reinforced polyester (FRP). Materials of Construction Various materials are available to meet the corrosion resistance, unit operating life, and budgetary requirements of any project (see section: Custom Features and Options for more details).

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S3000D Frame Construction shown without FRP Panels

Easy Maintenancez

Easy Cleaning The wet deck surface is elevated above the sloped cold water basin floor to facilitate flushing of dirt and debris from this critical area. Hinged Access Doors Provide easy entry to the spacious plenum for routine drive maintenance.

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Access Hatches in Hot Water Basin

Easy access to hot water basin

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Construction Details

Open Cooling Towers

1. Heavy-Duty Constructionz

z z

Large orifice, non-clog nozzles Steel distribution covers

Heavy-gauge Z600 galvanized steel frame

2. FRP Casing Panelsz z z

Corrosion resistant UV resistant finish Maintenance free

6. BACross II Wet Deck Surface with Integral Drift Eliminators (Not Shown)z z z

Plastic material Impervious to rot, decay and biological attack Designed and manufactured by BAC

3. Fan Drive Systemz z z z

Premium quality belts Corrosion resistant sheaves Heavy-duty bearings Adapted fan motor for operation in saturated conditions.

7. Combined Inlet Shieldsz z z

Corrosion Resistant Easily removable UV resistant plastic material

4. Low kW Axial Fanz z

8. Cold Water Basinz z z

Quiet operation Corrosion resistant aluminum

Sloped cold water basin for easy cleaning Suction strainer with anti-vortex hood Adjustable water make-up assembly from inside the unit

5. Water Distribution Systemz

Low pump head gravity distribution basin

9. Hinged Access Doors (Not Shown)z

Inward swinging door on each end wall

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Custom Features and OptionsConstruction Optionsz

Standard Construction: Steel panels and structural elements are constructed of Z600 heavy-gauge hot-dip galvanized steel. All external steel panels are protected with the Baltiplus Corrosion Protection. Casing panels are constructed of UV resistant fiberglass reinforced polyester. Optional BALTIBOND Corrosion Protection System: The BALTIBOND Corrosion Protection System, a hybrid polymer coating used to extend equipment life, is applied to all hot-dip galvanized steel components of the unit. Optional Stainless Steel Cold Water Basin: A type 304 or 316 stainless steel cold water basin is provided.

S3000D

z

z

Note: See section Technical Resources, Material Options for more details on the materials described above.

Fan Drive SystemThe low sound fan drive system provides the cooling air necessary to reject heat from the system to the atmosphere. The standard fan drive system consists of two sheaves located on minimum shaft centreline distances to maximise belt life. A fan motor, custom engineered for BAC to provide maximum performance for cooling tower service, is provided.

Low Sound Fan Drive System

"Whisper Quiet Fan" OperationThe ultra low sound levels generated by Series 3000D Cooling Towers make them suitable for installation in most environments. For very sound sensitive installations, the Series 3000D is available with a Whisper Quiet Fan - option that significantly reduces the sound levels generated from the tower with minimal impact on thermal performance. For extremely sound sensitive installations, factory designed, tested and rated sound attenuation is available for both the air inlet and discharge of Series 3000D Cooling Towers.S3000D with Intake and Discharge Attenuator

Baltimore Aircoil

S3000D

- B 15

Gear Drive System, Externally Mounted MotorA gear drive system with a TEFC motor mounted outside the airstream is also available on Series 3000 Cooling Towers. A non-corrosive carbon-fiber composite drive shaft with stainless steel hubs is selected with a 2.0 service factor. The motor and drive shaft ship separately for easy field installation.

Gear Drive System, Closed-Coupled MotorA close-coupled gear drive system is available as a fan drive option on Series 3000D Cooling Towers. Both the gear drive and couplings are selected with a 2,0 service factor. Gear construction includes a nickel-alloy steel shaft, casehardened gears, self-lubrication, and a single piece, gray iron housing. This drive system ships completely installed and aligned.

Open Cooling Towers

Remote Sump ExecutionThe use of an auxiliary sump within a heated space is the most satisfactory way to protect sump water from freezing. When the circulating pump is shut off, all the water in the water distribution, in suspension and in the sump will drain freely to the auxiliary sump.Note: For detailed information on the calculation of the remote sump tank, please refer to the section "Technical Resources, Selection of Remote Sump Tank".

... because temperature matters

S3000D

- B 16

AccessoriesExternal Service PlatformFor external service, platforms can be added to the unit.

Ladder, Safety Cage and Handrails

S3000D

In the event the owner requires easy access to the top of the unit, the unit can be furnished with a platform and ladders extending from the base of the unit to the platform, as well as safety cages, and handrail packages.

Internal Service PlatformsA galvanized steel internal walkway is available to provide a permanent working surface for easy access to the strainer, outlet, and make-up water assembly. For access to the motor and drive assemblies on two-piece units, an internal ladder and upper service platform with handrails is available.External Service Platform

Internal Platform and Ladder

Internal Walkway

Vibration Cut Out SwitchA factory-mounted vibration cut-out switch is available to effectively protect against equipment failure due to excessive vibration of the mechanical equipment system. BAC can provide a vibration cut-out switch in an IP65 enclosure to ensure reliable protection.

Electric Water Level Control PackageThe electric water level control replaces the standard mechanical make-up valve when a more precise water level control is required. This package consists of a float switch mounted in the basin and a solenoid activated valve in the make-up water line. The valve is slow closing to minimize water hammer.

Baltimore Aircoil

S3000D

- B 17

Basin HeatersUnits 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 heaters, which maintain the water temperature at 4C, are a simple and inexpensive way of providing such protection. The heater package includes the heaters, a thermostat and a low level cut out switch to protect the heaters if the water level is too low. Standard electric heaters are selected for -18C ambient temperature.

Open Cooling Towers

Model No. S3000D S3-D240 L S3-D379 L S3-D412 L S3-D527 L S3-D473 L S3-D672 L S3-D728 L S3-D1056 L S3-D583 L S3-D725 L S3-D1132 L S3-D1301 L

Heaters -18C (kW) 2x6 2x8 4x5 4x6 4x8 4x8

Extended Lubrication LinesExtended lubrication lines with grease fittings are available for lubrication of the fan shaft bearings.

High Temperature Wet DeckIf operation above 50C is anticipated, an optional high temperature wet deck material is available which increases the maximum allowable entering water temperature to 55C.

Extended Lubrication Lines

Mechanical Equipment Removal SystemThe mechanical equipment removal system is a lightweight, easy to install system for removal and installation of fan motor or gearbox.

Side Outlet Depressed SumpA side outlet depressed sump box is available for field installation below the base of the tower to facilitate jobsite piping.Note: See chapter "Connection Guide" in the section Technical Resources for more information on standard and optional unit connection types.

Mechanical Equipment Removal System

... because temperature matters

S3000D

- B 18

Basin Sweeper PipingBasin sweeper piping provides an effective method of preventing sediment from collecting in the cold water basin of the unit. A complete piping system, including nozzles, is provided in the unit basin for connection to side stream filtration equipment (Refer to section "Technical Resources, Filtration").

S3000D

Basin Sweeper Piping

Velocity Recovery StacksVelocity recovery stacks are available on the Series 3000D for incremental thermal performance increases. This accessory can be used to gain extra capacity in tight layouts, while maintaining the same footprint and unit kW. Field assembly is required.

Distribution Basin CoversThese covers help prevent the accumulation of leaves, debris and algae in the hot water distribution basins.S3000D with Velocity Recovery Stacks

Baltimore Aircoil

S3000D

- B 19

Engineering DataREMARK: Do not use for construction. Refer to factory certified dimensions & weights. This brochure includes data current at time of publication, which should be reconfirmed at the time of purchase. In the interest of product improvement, specifications, weights and dimensions are subject to change without notice. Up-to-date engineering data and more can be found at www.BaltimoreAircoil.com.

Single Cell Units

Open Cooling Towers

1. Water In; 2. Overflow ND80; 3. Make-up; 4. Water Out; 5. Drain ND50; 6. Access Door; 7. S3-D728 L thru S3-D1056 L and S3-D1132 L thru S3-D1301 L ship in two sections per cell. The top section is the heaviest and tallest. Top section heights are: S3-D728 L thru S3-D970 L: 3125 mm; S3-D1132 L: 3330 mm; S3-D985 L thru S3-D1056 L: 3533 mm; S3-D1213 L: 3736 mm; S3-D1301 L: 3822mm.

Model

Fan Motor (kW)

Airflow (m/s)

Operating Weight (kg)

Shipping Weight (kg)

Heaviest Section (kg)

Length (L1) (mm)

Width (W) (mm)

Height (H) (mm)

A

S3-D240 L S3-D272 L S3-D299 L S3-D333 L S3-D358 L S3-D379 L S3-D412 L S3-D436 L S3-D455 L S3-D482 L S3-D527 L S3-D473 L S3-D501 L S3-D552 L S3-D604 L S3-D648 L S3-D672 L S3-D728 L S3-D781 L S3-D828 L S3-D872 L S3-D923 L S3-D970 L S3-D985 L S3-D1056 L

7,5 11 15 15 18,5 22 18,5 22 18,5 22 30 18,5 22 22 30 37 45 30 37 45 37 45 55 45 55

28,6 32,5 35,6 39,1 41,9 44,4 47,2 50,1 51,2 54,2 59,4 54,2 57,4 62,1 68,0 72,9 75,7 81,6 87,5 92,6 94,2 99,8 104,9 104,9 112,4

6706 6765 6792 7151 7164 7187 8435 8458 8844 8867 8939 10483 10506 11663 11736 11740 12285 14555 14560 14660 15904 16004 16585 18269 18310

3083 3142 3169 3296 3310 3332 3823 3845 3968 3991 4063 4626 4649 4903 4976 4980 5530 6251 6256 6351 6583 6678 7264 7064 7105

3083 3142 3169 3296 3310 3332 3823 3845 3968 3991 4063 4626 4649 4903 4976 4980 5530 3959 3963 4059 3995 4091 4676 4295 4336

2584 2584 2584 2584 2584 2584 2978 2978 2978 2978 2978 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600

5500 5500 5500 5500 5500 5500 6110 6110 6110 6110 6110 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566

2915 2915 2915 3321 3321 3321 3321 3321 3727 3727 3727 3423 3423 3829 3829 3829 3829 4915 4915 5042 5728 5728 5804 6540 6616

2635 2635 2635 3040 3040 3040 3040 3040 3450 3450 3450 3040 3040 3450 3450 3450 3450 4710 4710 4710 5525 5525 5525 6335 6335

... because temperature matters

S3000D

- B 20

Model

Fan Motor (kW)

Airflow (m/s)

Operating Weight (kg)

Shipping Weight (kg)

Heaviest Section (kg)

Length (L1) (mm)

Width (W) (mm)

Height (H) (mm)

A

S3-D583 L S3-D618 L S3-D676 L S3-D725 L S3-D1132 L

18,5 22 30 37 55 55 75

65,7 69,5 76,1 81,7 122,1 128,5 138,0

13756 13779 13852 13856 18746 20112 21151

5480 5502 5575 5580 7540 7968 9007

5480 5502 5575 5580 4644 4867 5906

4245 4245 4245 4245 4245 4245 4245

7328 7328 7328 7328 7328 7328 7328

3651 3651 3651 3651 5864 6769 6769

3450 3450 3450 3450 5525 6335 6335

S3000D

S3-D1213 L S3-D1301 L

Double Cell Units

1. Water In; 2. Overflow; 3. Make-up; 4. Water Out; 5. Drain ND50; 6. Access Door; 7. S3-D728 L thru S3-D1056 L and S3-D1132 L thru S3D1301 L ship in two sections per cell. The top section is the heaviest and tallest. Top section heights are: S3-D728 L thru S3-D970 L: 3125 mm; S3-D1132 L: 3330 mm; S3-D985 L thru S3-D1056 L: 3533 mm; S3-D1213 L: 3736 mm; S3-D1301 L: 3822mm.

Model

Fan Motor (kW)

Airflow (m/s)

Operating Weight (kg)

Shipping Weight (kg)

Heaviest Section (kg)

Length (L1) (mm)

Width (W) (mm)

Height (H) (mm)

A

S3-D240-2 L S3-D272-2 L S3-D299-2 L S3-D333-2 L S3-D358-2 L S3-D379-2 L S3-D412-2 L S3-D436-2 L S3-D455-2 L S3-D482-2 L S3-D527-2 L S3-D473-2 L S3-D501-2 L S3-D552-2 L S3-D604-2 L S3-D648-2 L S3-D672-2 L

(2) 7,5 (2) 11 (2) 15 (2) 15 (2) 18,5 (2) 22 (2) 18,5 (2) 22 (2) 18,5 (2) 22 (2) 30 (2) 18,5 (2) 22 (2) 22 (2) 30 (2) 37 (2) 45

57,2 65,0 71,2 78,2 83,8 88,8 94,4 100,2 52,4 108,4 118,8 108,4 114,8 124,2 136,0 145,8 151,4

13412 13530 13584 14302 14328 14374 16870 16916 17688 17734 17878 20966 21012 23326 23472 23480 24570

6166 6284 6338 6592 6620 6664 7646 7690 7936 7982 8126 9252 9298 9806 9952 9960 11060

3083 3142 3169 3296 3310 3332 3823 3845 3968 3991 4063 4626 4649 4903 4976 4980 5530

5232 5232 5232 5232 5232 5232 6020 6020 6020 6020 6020 7264 7264 7264 7264 7264 7264

5500 5500 5500 5500 5500 5500 6110 6110 6110 6110 6110 6566 6566 6566 6566 6566 6566

2915 2915 2915 3321 3321 3321 3321 3321 3727 3727 3727 3423 3423 3829 3829 3829 3829

2635 2635 2635 3040 3040 3040 3040 3040 3450 3450 3450 3040 3040 3450 3450 3450 3450

Baltimore Aircoil

S3000D

- B 21

Model

Fan Motor (kW)

Airflow (m/s)

Operating Weight (kg)

Shipping Weight (kg)

Heaviest Section (kg)

Length (L1) (mm)

Width (W) (mm)

Height (H) (mm)

A

S3-D728-2 L S3-D781-2 L S3-D828-2 L S3-D872-2 L S3-D923-2 L S3-D970-2 L S3-D985-2 L S3-D1056-2 L S3-D583-2 L S3-D618-2 L S3-D676-2 L S3-D725-2 L S3-D1132-2 L S3-D1213-2 L S3-D1301-2 L

(2) 30 (2) 37 (2) 45 (2) 37 (2) 45 (2) 55 (2) 45 (2) 55 (2) 18,5 (2) 22 (2) 30 (2) 37 (2) 55 (2) 55 (2) 75

163,2 175,0 185,2 198,4 199,6 209,8 209,8 224,8 131,4 139,0 152,2 163,4 244,2 257,0 276,0

29110 29120 29320 31808 32008 33170 36538 36620 27512 27558 27704 27712 37492 40224 42302

12502 12512 12702 13166 13356 14528 14128 14210 10960 11004 11150 11160 15080 15936 18014

3959 3963 4059 3995 4091 4676 4295 4336 5480 5502 5575 5580 4644 4867 5906

7264 7264 7264 7264 7264 7264 7264 7264 8555 8555 8555 8555 8555 8555 8555

6566 6566 6566 6566 6566 6566 6566 6566 7328 7328 7328 7328 7328 7328 7328

4915 4915 5042 5728 5728 5804 6540 6540 3651 3651 3651 3651 5864 6769 6769

4710 4710 4710 5525 5525 5525 6335 6335 3450 3450 3450 3450 5525 6335 6335

Open Cooling Towers

General Notes1. Operating weight is for tower with the water level in the cold water basin at overflow. If a lower operating wieght is needed to meet design requirements, your local BAC Balticare Sales Representative can provide additional assistance. 2. Models S3-D970 L, S3-D1056 L, S3-D1132 L, S3-D1213 L and S3D-1301 L are supplied with a gear fan drive system as standard. 3. Models shipped with aan optional gear drive or low sound fan may have heights up to 265 mm greater than shown. 4. Heights are for units with belt drive except models with motors of 55 kW and larger where gear box is standard.

Connection SizesModel S3000 S3-D240 L S3-D272 L S3-D299 L S3-D333 L S3-D358 L S3-D379 L S3-D412 L S3-D436 L S3-D455 L S3-D482 L S3-D527 L S3-D473 L S3-D501 L S3-D552 L S3-D604 L S3-D648 L S3-D672 L S3-D728 L S3-D781 L S3-D828 L S3-D872 L S3-D923 L S3-D970 L S3-D985 L S3-D1056 L Top Inlet (mm) (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 150 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 Water Outlet (mm) (1x) ND 200 (1x) ND 200 (1x) ND 200 (1x) ND 200 (1x) ND 200 (1x) ND 200 (1x) ND 200 (1x) ND 200 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 250 (1x) ND 300 (1x) ND 300 (1x) ND 300 (1x) ND 300 (1x) ND 300 (1x) ND 300 (1x) ND 300 (1x) ND 300 Make-Up (mm) ND 25 ND 25 ND 25 ND 25 ND 25 ND 25 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 F (mm) 6 6 6 6 6 6 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 30 G (mm) 1292 1292 1292 1292 1292 1292 1489 1489 1489 1489 1489 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 J (mm) 2648 2648 2648 2648 2648 2648 3042 3042 3042 3042 3042 3664 3664 3664 3664 3664 3664 3664 3664 3664 3664 3664 3664 3664 3664

... because temperature matters

S3000D

- B 22

Model S3000 S3-D583 L S3-D618 L S3-D676 L S3-D725 L S3-D1132 L S3-D1213 L S3-D1301 L

Top Inlet (mm) (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 200 (2x) ND 250 (2x) ND 250 (2x) ND 250

Water Outlet (mm) (1x) ND 250 (1x) ND 300 (1x) ND 300 (1x) ND 300 (1x) ND 350 (1x) ND 350 (1x) ND 350

Make-Up (mm) ND 50 ND 50 ND 50 ND 50 ND 50 ND 50 ND 50

F (mm) 15 15 15 15 15 15 15

G (mm) 2116 2116 2116 2116 2116 2116 2116

J (mm) 4296 4296 4296 4296 4296 4296 4296

S3000D

Notes:1. Unless otherwise indicated, all connections DN150 and smaller are MPT, and connections DN200 and larger are beveled for welding. 2. On double cell units, connections are the same size but are located on both ends of the unit.

Sound Attenuation S3-D240 L through S3-D725 L

1. Intake Attenuator; 2. Discharge Attenuator

Model No. S3-D240 L S3-D272 L S3-D299 L S3-D333 L S3-D358 L S3-D379 L S3-D412 L S3-D436 L S3-D455 L S3-D482 L S3-D527 L S3-D473 L S3-D501 L S3-D552 L S3-D604 L S3-D648 L S3-D672 L S3-D583 L S3-D618 L S3-D676 L S3-D725 L

Fan Motor (kW) 7,5 11 15 15 18,5 22 18,5 22 18,5 22 30 18,5 22 22 30 37 45 18,5 22 30 37

A (mm) 2578 2578 2578 2578 2578 2578 3035 3035 3035 3035 3035 3340 3340 3340 3340 3340 3340 3645 3645 3645 3645

B (mm) 1715 1715 1715 2121 2121 2121 2121 2121 2527 2527 2527 2121 2121 2527 2527 2527 2527 2527 2527 2527 2527

Weight Discharge Attenuator (kg) (1) 350 350 350 350 350 350 400 400 400 400 400 460 460 460 460 460 460 550 550 550 550

Weight Intake Attenuator (kg) (2) (3) 340 340 340 420 420 420 480 480 570 570 570 580 580 690 690 690 690 810 810 810 810

Baltimore Aircoil

S3000D

- B 23

Sound Attentuation S3-D728 L through S3-D1301 L

Open Cooling Towers

1. Intake Sound Attenuation; 2. Discharge Attenuation

Model No.

Fan Motor (kW) 30 37 45 37 45 55 45 55 55 55

A (mm) 3645 3645 3645 3645 3645 3645 3645 3645 4255 4255 4255

B1 (mm) 994 994 994 1807 1807 1807 2213 2213 1807 2213 2213

B2 (mm) 2353 2353 2353 2353 2353 2353 2353 2353 2353 2759 2759

Weight Discharge Attenuator (1) (kg) 480 480 480 480 480 480 480 480 570 570 570

Weight Lower Intake Attenuator (both) (2) (3) (kg) 270 270 270 500 500 500 500 500 580 710 710

Weight Upper Intake Attenuator(both) (2) (3) (kg) 640 640 640 640 640 640 750 750 750 880 880

S3-D728 L S3-D781 L S3-D828 L S3-D872 L S3-D923 L S3-D970 L S3-D985 L S3-D1056 L S3-D1132L S3-D1213L S3-D1301L

General Notes Sound Attenuation1. Discharge attenuator is shipped in one piece, not installed. 2. Intake attenuators are shipped installed for single cell units. For 2 or more cells, consult factory. 3. Weight of intake attenuator is total for both attenuators. 4. For correct layout and piping considerations, please refer to your local BAC Balticare representative.

Remote Sump DataRefer to the "Technical Resources" section "Selection of Remote Sump" for Remote Sump Data.

... because temperature matters

S3000D

- B 24

Structural SupportREMARK: Do not use for construction. Refer to factory certified dimensions & weights. This brochure includes data current at time of publication, which should be reconfirmed at the time of purchase. In the interest of product improvement, specifications, weights and dimensions are subject to change without notice. Up-to-date engineering data and more can be found at www.BaltimoreAircoil.com.The recommended support arrangement for the Series 3000D Cooling Tower, consists of parallel I-beams positioned as shown in the drawings. Besides providing adequate support, the steel also serves to raise the unit above any solid foundation to assure access to the bottom of the tower. The Series 3000D may also be supported on columns at the anchor bolt locations as shown the following Plan. A minimum bearing surface of 100 cm must be provided under each of the concentrated load points (See Note 6 following page). To support a Series 3000D Cooling Tower on columns, or in an alternate steel support arrangement, consult your BAC Balticare Representative.

S3000D

Units with and without Sound AttenuationSingle Cell Unit Plan A

1. Outline of unit; 2. Air Inlet Side; 3. Mounting Holes (see Note 7); 4. Additional Anchor Bolts (see note 8).

Single Cell Unit Plan B

1. Outline of unit; 2. Air Inlet Side; 3. Mounting Holes (see Note 7).

Baltimore Aircoil

S3000D

- B 25

Double Cell Unit Plan C

Open Cooling Towers

1. Outline of unit; 2. Air Inlet Side; 3. Mounting Holes (see Note 7); 4. Additional Anchor Bolts (see note 8).

Model No.

Operating Weight (1) (kg) 6706 6765 6792 7151 7164 7187 8435 8458 8844 8867 8939 10483 10506 11663 11736 11740 12285 14555 14560 14660 15904 16004 16585 18269 18310 13756 13779 13852 13856 18746 20112 21151

Shipping Weight (1)(2) (kg) 3083 3142 3169 3296 3310 3332 3823 3845 3968 3991 4063 4626 4649 4903 4976 4980 5530 6251 6256 6351 6583 6678 7264 7064 7105 5480 5502 5575 5580 7540 7968 9007

Weight at bolt hole location (1)(2) (kg) 1677 1691 1698 1788 1791 1797 2109 2115 2211 2217 2235 2621 2627 2916 2934 2935 3071 3639 3640 3665 3976 4001 4146 4567 4578 3439 3445 3463 3464 4687 5028 5288

Length (L1) (mm) 2584 2584 2584 2584 2584 2584 2978 2978 2978 2978 2978 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 3600 4245 4245 4245 4245 4245 4245 4245

Length (L2) (mm) 5232 5232 5232 5232 5232 5232 6020 6020 6020 6020 6020 7264 7264 7264 7264 7264 7264 7264 7264 7264 7264 7264 7264 7264 7264 8555 8555 8555 8555 8555 8555 8555

Width (W) (mm) 5500 5500 5500 5500 5500 5500 6110 6110 6110 6110 6110 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 6566 7328 7328 7328 7328 7328 7328 7328

A (mm) 2845 2845 2845 2845 2845 2845 3454 3454 3454 3454 3454 3912 3912 3912 3912 3912 3912 3912 3912 3912 3912 3912 3912 3912 3912 4674 4674 4674 4674 4674 4674 4674

B (mm) 4991 4991 4991 4991 4991 4991 5600 5600 5600 5600 5600 6058 6058 6058 6058 6058 6058 6058 6058 6058 6058 6058 6058 6058 6058 6820 6820 6820 6820 6820 6820 6820

C (mm) 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 29 37 37 37 37 37 37 37

D (mm) 2527 2527 2527 2527 2527 2527 2921 2921 2921 2921 2921 3543 3543 3543 3543 3543 3543 3543 3543 3543 3543 3543 3543 3543 3543 4172 4172 4172 4172 4172 4172 4172

E (mm) 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 120 137 137 137 137 137 137 137

S3-D240 L S3-D272 L S3-D299 L S3-D333 L S3-D358 L S3-D379 L S3-D412 L S3-D436 L S3-D455 L S3-D482 L S3-D527 L S3-D473 L S3-D501 L S3-D552 L S3-D604 L S3-D648 L S3-D672 L S3-D728 L S3-D781 L S3-D828 L S3-D872 L S3-D923 L S3-D970 L S3-D985 L S3-D1056 L S3-D583 L S3-D618 L S3-D676 L S3-D725 L S3-D1132 L S3-D1213 L S3-D1301 L

... because temperature matters

S3000D

- B 26

Notes:1. Weights are for a single cell. To obtain weights for multi-cell units, multiply by the number of cells. 2. Operating weight and weight loading are for a single cell tower with water at overflow level in the cold water basin. 3. Support beams and anchor bolts to be selected and installed by parties other than BAC. 4. All support steel must be level at the top. 6. If point vibration isolation is used with multi-cell towers, the isolators must be located under the support steel, not between the support steel and the cooling towers. 7. 19 mm mounting holes. 4 holes required for models S3-D240 L through S3-D725 L. 8 holes required for models S3-D728 L through S3-D1301 L. 8. Detail for additional anchor bolt models S3-D725 L through S3D1301 L.

S3000D

5. Beams must be selected in accordance with accepted structural practice. Maximum deflection of beam under unit to be 1/360 of span, not to exceed 12 mm.

Baltimore Aircoil

S3000D

- B 27

Engineering Specifications1.0 Cooling Tower1.1 General: Furnish and install _____ factory-assembled, induceddraft, axial fan, crossflow cooling tower(s) with vertical air discharge, conforming in all aspects to the specifications, schedules and as shown on the plans. Overall dimensions shall not exceed approximately _____ mm long x ______ mm wide x _____ mm high. The total connected fan kW shall not exceed _____ kW. The cooling tower(s) shall be Baltimore Aircoil Model ____________. 1.2 Thermal Capacity: The cooling tower(s) shall be warranted by the manufacturer to cool _____ l/s of water from ______ C to _____C at _____C entering wet-bulb temperature. 1.3 Corrosion Resistant Construction (standard): Unless otherwise noted in this specification, all structural members shall be constructed of heavy-gauge Z600 metric hot-dip galvanised steel with all edges given a protective coating of zinc-rich compound. All external surfaces are protected with the BALTIPLUS Corrosion Protection. Casing panels shall be constructed of corrosion and UV-resistant fibreglass reinforced polyester (FRP) to minimise maintenance requirements and prolong equipment life. (Alternate 1.3) Corrosion Resistant Construction (optional): Unless otherwise noted in this specification, all structural members shall be protected with the BALTIBOND Corrosion Protection System. The system shall consist of Z600 metric hot-dip galvanised steel prepared in a four-step (clean, pre-treat, rinse, dry) process with an electrostatically sprayed, thermosetting, hybrid polymer fusebonded to the substrate during a thermally activated curing stage and monitored by a 23-step quality assurance program. Casing panels shall be constructed of corrosion and UV-resistant fibreglass reinforced polyester (FRP) to minimise maintenance requirements and prolong equipment life.

Open Cooling Towers

(Alternate 1.3) Type 304 or 316 Stainless Steel Construction: All structural members, including the structural frame, hot and cold water basins, distribution covers and fan deck shall be constructed of Type 304 or 316 stainless steel and assembled with stainless steel nut and bolt fasteners. Fan cylinder shall be galvanised steel protected with the Baltibond Corrosion Protection System. Casing panels shall be constructed of corrosion and UV-resistant fibreglass reinforced polyester (FRP) to minimise maintenance requirements and prolong equipment life. 1.4 Quality Assurance: The cooling tower manufacturer shall have a Management System certified by an accredited registrar as complying with the requirements of ISO-9001:2000 to ensure consistent quality of products and services. 1.5 Warranty: The manufacturers standard equipment warranty shall be for a period of not less than one year from date of startup or eighteen months from date of shipment, whichever occurs first.

2.0 Construction Details2.1 Structure: The cooling tower shall be constructed with a sturdy structural frame designed to transmit all wind and mechanical loads to the equipment anchorage. The frame shall be constructed of heavy-gauge steel angles and channels. 2.2 Casing Panels: Casing panels shall be constructed of corrosion and UV-resistant fibreglass reinforced polyester (FRP) to minimise maintenance requirements and prolong equipment life. 2.3 Cold Water Basin: The cold water basin shall be constructed of heavy-gauge steel panels and structural members. The basin shall include a sloping depressed section with drain/clean-out connection. The basin area under the wet deck surface shall be sloped toward the depressed section to facilitate cleaning. Standard basin accessories shall include a brass make-up valve with a large diameter plastic float for easy adjustment of operating water level. (Alternate 2.3) Cold Water Basin: The cold water basin shall be constructed of heavy-gauge Type 304 or 316 stainless steel panels and structural members. The basin shall include a depressed centre section with drain/clean-out connection. The basin area under the wet deck surface shall be sloped toward the depressed section to facilitate cleaning. Standard basin accessories shall include a brass make-up valve with a large diameter plastic float for easy adjustment of operating water level. 2.4 Water Outlet: The cooling tower basin outlet shall be beveled for welding. The outlet shall be provided with large area lift out strainers with perforated openings sized smaller than the water distribution nozzles and an anti-vortexing device to prevent air entrainment. The strainer and vortex device shall be constructed of the same materials as the cold water basin to prevent dissimilar metal corrosion. 2.5 Water Distribution System: Hot water distribution basins shall be the open gravity type and constructed of heavy-gauge Z600 hotdip galvanized steel. Basin weirs and plastic metering orifices shall be provided to ensure even distribution of water over the wet deck surface. Lift-off distribution covers shall be constructed of heavygauge Z600 metric hot-dip galvanized steel.

3.0 Mechanical Equipment3.1. Fan(s): Fan(s) shall be heavy-duty, axial flow with aluminum alloy blades selected to provide optimum cooling tower thermal performance with minimal sound levels. Air shall discharge through a fan cylinder designed for streamlined air entry and minimum tip clearance for maximum fan efficiency. The top of the fan cylinder shall be equipped with a conical, non-sagging removable fan guard. (Alternate 3.1) Fan(s): Fan(s) shall be of Whisper Quiet fan design for ultra low sound consisting of multi-blade aerofoil fan design constructed of fibreglass reinforced plastic blades. 3.2. Bearings: Fan(s) and shaft(s) shall be supported by heavy-duty, self-aligning, grease-packed ball bearings with moisture proof seals and integral slinger collars, designed for a minimum L10 life of 40 000 hours (280 000 Hr. Avg. Life). 3.3. Fan Drive: The fan(s) shall be belt driven with taper lock sheaves. The belts shall be constructed of neoprene reinforced polyester cord and be specifically designed for cooling tower service. 3.4. Sheaves: Fan and motor sheave(s) shall be fabricated from corrosion-resistant materials to minimize maintenance and ensure maximum drive and powerband operating life. 3.5. Fan Motor: Fan motor(s) shall be totally enclosed fan cooled (TEFC), reversible, squirrel cage, ball bearing type designed specifically for cooling tower service. The motor shall be furnished with special moisture protection on windings, shafts and bearings.

... because temperature matters

S3000D

- B 28

4.0 BACross II Wet Deck Surface and Integral Drift Eliminators4.1 BACross II Wet Deck Surface and Drift Eliminators: The wet deck surface and integral drift eliminators shall be formed from selfextinguishing plastic material and shall be impervious to rot, decay, fungus and biological attack. The wet deck shall be suitable for entering water temperatures up to 50C. The wet deck surface shall be manufactured, tested, and rated by the cooling tower manufacturer and shall be elevated above the cold water basin to facilitate cleaning.

5.0 Combined Inlet Shield Technology

S3000D

5.1. Combined Inlet Shields: Combined inlet shields shall be separate from the wet deck surface and removable to allow easy access for inspection of the air/water interface at the air inlet side of the equipment. Combined inlet shields shall prevent UV-light and

debris from entering the unit, as well as prevent water splash out during fan cycling. They shall be constructed of maintenance free, corrosion and UV resistant material.

6.0 Access6.1 Plenum Access: Two hinged access doors shall be provided for access into the plenum section.

7.0 Sound7.1 Sound Level: To maintain the quality of the local environment, the maximum sound pressure levels (dB) measured 15 m from the cooling tower operating at full fan speed shall not exceed the sound levels detailed below. (Alternate) 7.1 Sound Level: To maintain the quality of the local environment, the cooling tower shall be furnished with an extremely low sound fan Type Whisper Quiet. Maximum sound pressure levels (dB) measured 15 m from the cooling tower operating at full fan speed shall not exceed the sound levels detailed below.

Location Discharge Air Inlet End

63

125

250

500

1000

2000

4000

8000

dB(A)

Baltimore Aircoil

TXV - B 29

TXV

Open Cooling Towers

Open Cooling Towers

Product DetailTXV Open Cooling Tower ...................................................................... B30 Benefits ..................................................................................................... B32 Construction Details ................................................................................ B34 Custom Features and Options ................................................................ B35 Accessories ............................................................................................... B37 Engineering Data ..................................................................................... B39 Structural Support .................................................................................. B42 Engineering Specifications ..................................................................... B43

TXV - B 30

TXV Open Cooling TowerCapacitySingle Cell Capacity: 10 - 128 l/s

TXV

General DescriptionSeries 1500 Cooling Towers minimize the operating, installation, and maintenance costs associated with both new and replacement cooling tower projects. The Series 1500 delivers fully rated thermal performance over a wide range of flow and temperature requirements. Standard design features minimize the costs associated with enclosures, support requirements, electrical service, piping, and rigging.

Key Featuresz

Ideal replacement unit Single side air inlet Low energy consumption Low installed cost Easy maintenance Reliable year-round operation Long service life

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Baltimore Aircoil

TXV - B 31

Open Cooling Towers

... because temperature matters

TXV - B 32

BenefitsIdeal Replacement Unitz

Support Steel Units are designed to mount directly on the existing support steel of many cooling towers (both cross flow and counter flow). Electrical Service Fan motor configurations can be supplied to match existing wiring. Enclosures Units fit in most existing enclosures with little or no modifications due to the single air inlet design.Single air inlet provides installation flexibility in tight layouts

TXV

z

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Counterflow CoolingTower Replacement

Replaced by Crossflow units

Low Energy Consumptionz

Evaporative Cooling Equipment minimizes the energy consumption of the entire system because it provides lower operating temperatures. The owner saves money while conserving natural resources and reducing environmental impact. TXV provides heat rejection at the lowest possible energy input and maintenance requirements via: - High efficiency, low kW axial fans - High efficiency BACross Wet Deck, which provides maximum air/water contact time at low air pressure drops - Multiple Fan Motor System: independent fan motor and drive assembly per fan, which allows extra steps of capacity control.

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Baltimore Aircoil

TXV - B 33

Low Installed Costz

Single Side Air Inlet Units can be placed close to solid walls, reducing the size of enclosures and allowing for more profitable use of premium space. Modular Design The modular design minimizes the size and weight of the heaviest lift, allowing for the use of smaller, less costly cranes. Modular Design All models mount directly on parallel I-beams and ship complete with motors and drives factory-installed and aligned.

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Open Cooling Towers

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The unit shown ships in tow pieces to minimize shipping and rigging costs

Easy Maintenancez

Easy Cleaning The wet deck surface is elevated above the sloped cold water basin floor to facilitate flushing of dirt and debris from this critical area. Hinged Access Doors and Standard Internal Walkway Provide easy entry to the spacious plenum for routine drive maintenance. Accessibility Make-up, drain, overflow and optional basin accessories are accessible from outside the unit.

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Reliable Year-Round Operationz

Belt Drive System utilizes special corrosion-resistant materials of construction and state-ofthe-art technology to ensure ease of maintenance and reliable year-round performance. Combined Inlet Shields prevent biological growth from sunlight, act as a filter for air borne impurities and debris and eliminate water splash out.

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Long Service Lifez

Materials of Construction Various materials are available to meet the corrosion resistance, unit operating life, and budgetary requirements of any project (See section Technical Resources, Materials of Construction" for more details)

... because temperature matters

TXV - B 34

Construction Details

TXV1. Heavy-Duty Constructionz

Z600 hot-dip galvanized steel panels

5. BACross Wet Deck Surface with Integral Drift Eliminators (Not Shown)z

Plastic material Impervious to rot, decay and biological attack Designed and manufactured by BAC

2. Fan Drive Systemz z z z

Premium quality belts Corrosion resistant sheaves Heavy-duty bearings Adapted fan motor for operation in saturated conditions.

z z

6. Combined Inlet Shieldsz z z

Corrosion Resistant Easily removable UV resistant plastic material

3. Low kW Axial Fan(s)z z

Quiet operation Corrosion resistant aluminum

7. Cold Water Basinz z z

Sloped cold water basin for easy cleaning Suction strainer with anti-vortex hood Adjustable water make-up assembly from air inlet side Integral internal walkway as standard

4. Water Distribution Systemz z z z

Steel covers in easy to remove sections Low pump head gravity distribution basin Large orifice, non-clog nozzles Integral strainer

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8. Hinged Access Doorsz

Inward swinging door

Baltimore Aircoil

TXV - B 35

Custom Features and OptionsConstruction Optionsz

Standard Construction: Steel panels and structural elements are constructed of Z600 heavy-gauge hot-dip galvanized steel protected with the Baltiplus Corrosion Protection on the outside of the unit. Optional BALTIBOND Corrosion Protection System: The BALTIBOND Corrosion Protection System, a hybrid polymer coating used to extend equipment life, is applied to all hot-dip galvanized steel components of the unit. Optional Stainless Steel Construction: Steel panels and structural elements are constructed of stainless steel either type 304 or 316.

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Open Cooling Towers

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Note: Refer to section Technical Resources, Material Options for more details on the materials described above.

Multiple Fan Drive SystemAll TXV-models are standard equipped with the multiple fan motor system. This system consists of an independent fan motor and drive assembly per fan with a plenum partition to allow independent operation of each fan. This standard feature provides 2 steps of capacity control on dual fan units and 3 steps of capacity control on triple fan units, as illustrated below.

Individual Motor and Drive on each Fan

Extra Steps of Capacity Control

Removable Bundled FillFor installations where it is necessary or recommended to remove the wet deck surface for more thorough cleaning and disinfection, removable bundled fill is available. The fill bundles can be easily lifted and handled by one person and therefore provide a simple and secure method of removing and installing. The bundles can be dismantled and sheet by sheet can be removed for inspection and cleaning of both sides. After cleaning the sheets can be re-bundled and re-installed.

... because temperature matters

TXV - B 36

Low Sound OperationThe low sound levels generated by Series 1500 Units make them suitable for installation in most environments. For very sound sensitive installations, thanks to the use of high efficiency low noise fans as standard, all models are also available with a Whisper Quiet sound fan option that significantly reduces the sound levels generated from the tower with minimal impact on thermal performance.

TXV

Sound Attenuators on TXV Cooling Tower

For extremely sound sensitive installations, factory designed, tested and rated sound attenuation is available for both the air inlet and discharge.

Remote Sump ExecutionThe use of an auxiliary sump within a heated space is the most satisfactory way to protect sump water from freezing. When the circulating pump is shut off, all the water in the water distribution, in suspension and in the sump will drain freely to the auxiliary sump.Note: For detailed information on the calculation of the remote sump tank, please refer to the section "Technical Resources, Selection of Remote Sump Tank".

Combined Inlet ShieldsCombined Inlet shields prevent biological growth from sunlight, act as a filter for air borne impurities and debris and eliminate water splash out.

Combined Inlet Shields

Baltimore Aircoil

TXV - B 37

AccessoriesExternal Service Platform with Ladder, Safety Cage and HandrailsIn the event the owner requires easy access to the top of the unit, the unit can be furnished with a platform and ladders extending from the base of the unit to the platform, as well as safety cages, and handrail packages.Note: Top air inlet screens are recommended with this option.

Open Cooling Towers

Internal LadderFor access to the motor and drive assemblies internal ladders are available on models TXV-292 up to TXV-500 and TXV-310 up to TXV-425.External Service Platform, Ladder and Safety Cage

Internal Service PlatformsFor access to the motor and drive assemblies on models TXV-292 up to TXV-500 and TXV-310 up to TXV-425 an upper service platform with ladder and handrails is available. Safety gates are available for handrail openings.

Standard Internal Walkway

Internal Ladder and Service Platform

Electric Water Level Control PackageThe electric water level control replaces the standard mechanical make-up valve when a more precise water level control is required. This package consists of a float switch mounted in the basin and a solenoid activated valve in the make-up water line. The valve is slow closing to minimize water hammer.

... because temperature matters

TXV - B 38

Basin HeatersUnits 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 heaters, which maintain the water temperature at 4C, are a simple and inexpensive way of providing such protection. The heater package includes the heaters, a thermostat and a low level cut out switch to protect the heaters if the water level is too low. Standard electric heaters are selected for -18C ambient temperature.Model No. TXV TXV 109 - 154 TXV 177 - 193 TXV 217 - 237 TXV 292 - 333 TXV 354 - 500 TXV 310 - 425 Heater -18C (kW) 1x6 1x6 1x8 1x8 2x6 2x6

TXV

Extended Lubrication LinesExtended lubrication lines with grease fittings are available for lubrication of the fan shaft bearings.

High Temperature Wet DeckIf operation above 50C is anticipated, an optional high temperature wet deck material is available which increases the maximum allowable entering water temperature to 55C.

Distribution Basin CoversThese covers prevent the accumulation of leaves, debris and algae in the hot water distribution pans.Extended Lubrication Lines

Baltimore Aircoil

TXV - B 39

Engineering DataREMARK: Do not use for construction. Refer to factory certified dimensions & weights. This brochure includes data current at time of publication, which should be reconfirmed at the time of purchase. In the interest of product improvement, specifications, weights and dimensions are subject to change without notice. Up-to-date engineering data and more can be found at www.BaltimoreAircoil.com.

TXV 109 - TXV 237

Open Cooling Towers

1. Water in; 2. Water out; 3. Make Up; 4. Overflow ND80; 5. Drain ND50; 6.Access Door.

Model No. TXV TXV 109 TXV 123 TXV 135 TXV 154 TXV 177 TXV 193 TXV 217 TXV 237

Operating Weight (kg) 3040 3060 3070 3090 3780 3790 4600 4610

Shipping Weight (kg) 1640 1660 1670 1690 1910 1920 2290 2300

Heaviest Section (kg) 1640 1660 1670 1690 1910 1920 2290 2300

Air Flow (m/s) 16,4 18,8 20,8 23,8 27,1 29,8 30,8 33,9

Fan Motor (kW) (1) 4,0 (1) 5,5 (1) 7,5 (1) 11 (2) 5,5 (2) 7,5 (2) 5,5 (2) 7,5

Fluid Inlet ND (mm) 150 150 150 150 150 150 200 200

Fluid Outlet ND (mm) 200 200 200 200 200 200 200 200

Make Up ND (mm) 25 25 25 25 25 25 40 40

H (mm) 3150 3150 3150 3150 3150 3150 3150 3150

L (mm) 2775 2775 2775 2775 3690 3690 3690 3690

W (mm) 2385 2385 2385 2385 2385 2385 2985 2985

... because temperature matters

TXV - B 40

TXV 292 - TXV 500

TXV1. Water in; 2. Water out; 3. Make Up; 4. Overflow ND80; 5. Drain ND50; 6.Access door.Operating Weight (kg) 6090 6110 6130 8560 8570 8610 8710

Model TXV TXV 292 TXV 314 TXV 333 TXV 354 TXV 402 TXV 441 TXV 500

Shipping Weight (kg) 3100 3120 3140 4040 4050 4080 4180

Heaviest Section (kg) 1720 1740 1760 2260 2270 2300 2400

Air Flow (m/s) 39,1 42,1 45,6 46,6 53,4 58,8 67,7

Fan Motor (kW) (2) 7,5 (2) 11 (2) 11 (3) 4,0 (3) 5,5 (3) 7,5 (3) 11

Fluid Inlet ND (mm) 250 250 250 250 250 250 250

Fluid Outlet ND (mm) 250 250 250 250 250 250 250

Make Up ND (mm) 40 40 40 40 40 40 40

H (mm) 4385 4385 4385 4525 4525 4525 4525

L (mm) 3690 3690 3690 5520 5520 5520 5520

W (mm) 2985 2985 2985 2985 2985 2985 2985

TXV 310 - TXV 425

1. Water in; 2. Water out; 3. Make Up; 4. Overflow ND80; 5. Drain ND50; 6.Access Door.

Baltimore Aircoil

TXV - B 41

Model No. TXV TXV 310 TXV 340 TXV 365 TXV 385 TXV 425

Operating Weight (kg) 7160 7170 7200 7210 7310

Shipping Weight (kg) 3370 3380 3400 3410 3510

Heaviest Section (kg) 1770 1780 1800 1810 1910

Air Flow (m/s) 38,3 42,1 45,4 48,2 53,1

Fan Motor (kW) (2) 5,5 (2) 7,5 (2) 11 (2) 11 (2) 15

Fluid Inlet ND (mm) 250 250 250 250 250

Fluid Outlet ND (mm) 250 250 250 250 250

Make Up ND (mm) 40 40 40 40 40

H (mm) 4790 4790 4790 4790 4790

L (mm) 3690 3690 3690 3690 3690

W (mm) 3610 3610 3610 3610 3610

General Notes

Open Cooling Towers

1. All connections 100 mm and smaller are MPT. Connections 125 mm and larger are bevelled-for-welding. 2. Make-up, overflow, suction, and drain connections can be provided on end opposite to that shown; consult your BAC Balticare representative.

3. Models TXV 292 up to 333, TXV 354 up to 500 and TXV 310 up to 425 are shipped in two sections per cell. The top section is the heaviest and has a height of 2130 mm.

Sound Attenuation

1. Intake Attenuator; 2. Discharge Attenuator.

Model No TXV TXV 109- 154 TXV 177 - 193 TXV 217 - 237 TXV 292 - 333 TXV 354 - 500 TXV 310 - 425 D 1345 1345 1665 1665 1500 2005

Dimensions (mm) Ht 3885 3885 3885 5120 5260 5525 Intake 190 250 250 400 600 450

Weight (kg) Discharge 210 255 270 270 385 310

Models TXV 292 up to 333, TXV 354 up to 500 and TXV 310 up to TXV 425: intake attenuators ship in two sections. Indicated weights are total weights of two sections. W = Unit Width, Refer to general Engineering Data.

Remote Sump DataRefer to the "Technical Resources" section "Selection of Remote Sump" for Remote Sump Data.

... because temperature matters

TXV - B 42

Structural SupportREMARK: Do not use for construction. Refer to factory certified dimensions & weights. This brochure includes data current at time of publication, which should be reconfirmed at the time of purchase. In the interest of product improvement, specifications, weights and dimensions are subject to change without notice. Up-to-date engineering data and more can be found at www.BaltimoreAircoil.com.The recommended support arrangement for units consists of parallel I-beams running the full length of the unit, spaced as shown in the following drawing. Besides providing adequate support, the steel also serves to raise the unit above any solid foundation to ensure access to the bottom of the unit. To support units in an alternate steel support arrangement, consult your BAC Balticare Representative.

TXV

Units with and without Sound Attenuation

1. Unit Outline; 2. Air Intake; 3. Mounting holes 22 mm; 4. Unit.

Model TXV 109-154 177-193 217-333 310-425 354-500

Max. Deflection (mm) (4) 8 10 10 10 12

Dimensions (mm) A 2325 2325 2925 3550 2925 B 2440 C 255 255 255 255 270

N of 16 mm Anchor Bolts 4 4 4 4 8

Notes:1. The recommended support arrangement for the units consists of parallel I-beams extending the full length of the unit. Supports and anchor bolts are to be designed and furnished by others. 2. All supporting beams are to be flush and level at top and must be oriented relative to gage line as shown. 3. Recommended design loads for each unit support beam should be 70% of the total unit operating weight applied as a uniform load to each of the unit beams. Beams should be designed in accordance with standard structural practice. For the maximum allowable deflection of beams under the unit see table. 4. All mounting holes have a diameter of 22 mm at the locations shown. 5. If vibration isolators are used, a rail or channel must be provided between the unit (and optional attenuator) and the isolators to provide continuous unit support. Additionally the support beams must be designed to accommodate the overall length and mounting hole location of the isolators that may differ from those of the unit. Refer to vibration isolator drawings for these data.

Baltimore Aircoil

TXV - B 43

Engineering Specifications1.0 Cooling Tower1.1 General: Furnish and install _____ factory-assembled, induceddraft, axial fan, crossflow cooling tower(s) with single side air entry and vertical air discharge. Overall dimensions shall not exceed approximately _____ mm long x ______ mm wide x _____ mm high. The total connected fan kW shall not exceed _____ kW. The cooling tower(s) shall be Baltimore Aircoil Model ____________. 1.2 Thermal Capacity: The cooling tower(s) shall be warranted by the manufacturer to cool _____ l/s of water from ______ C to _____C at _____C entering wet-bulb temperature. 1.3 Corrosion Resistant Construction (standard): Unless otherwise noted in this specification, all steel panels and structural members shall be constructed of heavy-gauge Z600 metric hot-dip galvanised steel with all edges given a protective coating of zinc-rich compound and protected with the BALTIPLUS Corrosion Protection. (Alternate 1.3) Corrosion Resistant Construction (optional): Unless otherwise noted in this specification, all steel panels and structural members shall be protected with the BALTIBOND Corrosion Protection System. The system shall consist of Z600 metric hot-dip galvanised steel prepared in a four-step (clean, pre-treat, rinse, dry) process with an electrostatically sprayed, thermosetting, hybrid polymer fuse-bonded to the substrate during a thermally activated curing stage and monitored by a 23-step quality assurance program. (Alternate 1.3) Type 304 or 316 Stainless Steel Construction: All steel panels and structural members, including the structural frame, hot and cold water basins, distribution covers and fan deck shall be constructed of Type 304 or 316 stainless steel and assembled with stainless steel nut and bolt fasteners. The fan cylinder shall be constructed of heavy-gauge Z600 metric hot-dip galvanised steel and protected with the BALTIBOND Corrosion Protection System. 1.4 Quality Assurance: The cooling tower manufacturer shall have a Management System certified by an accredited registrar as complying with the requirements of ISO-9001:2000 to ensure consistent quality of products and services. 1.5 Warranty: The manufacturers standard equipment warranty shall be for a period of not less than one year from date of start-up or eighteen months from date of shipment, whichever occurs first.

Open Cooling Towers

2.0 Construction Details2.1 Cold Water Basin: The cold water basin shall include a depressed section with drain/clean-out connection. The basin area under the wet deck surface shall be sloped toward the depressed section to facilitate cleaning. Standar