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Materials of Construction

  • Standard Construction — G-235 mill galvanized steel is the heaviest commercially available galvanized steel, universally recognized for its strength and corrosion resistance. To assure long-life, G-235 mill galvanized steel panels and structural members are used as the standard material of construction. The standard construction has been seismically verified by shake table testing in an independent laboratory up to an SDS of 2.40g and can withstand wind loads of up to 167 psf, proving its construction is designed for extreme durability. With proper maintenance and water treatment, G-235 galvanized steel will provide an excellent service life under the operating conditions normally encountered in comfort cooling and industrial applications.
  • TriArmor® Corrosion Protection System (Option) The TriArmor® Corrosion Protection System consists of heavy gauge G-235 galvanized steel panels fully encapsulated by a thermosetting hybrid polymer and further protected by a polyurethane barrier applied to all submerged surfaces of the cold water basin. The triple layers of protection form a completely seamless cold water basin for the most leak resistant and durable basin in the industry. Other components within the basin, such as the strainer and submerged structural supports, will be constructed of Type 304 stainless steel. The TriArmor®Corrosion Protection System was specifically designed for evaporative cooling applications and released in 2006 after a decade of extensive R&D and field testing. To date, there are over 1,000 successful installations in North America. Every cold water basin is leak tested at the factory and warranted against leaks and corrosion for five years.

    TriArmor® Corrosion Protection System Triple Layer Protection of the Cold Water Basin

    TriArmor® Corrosion Protection System Triple Layer Protection of the Cold Water Basin

  • EVERTOUGH™ Construction (Option) EVERTOUGH™ Construction combines the most corrosion resistant materials to provide the best value in corrosion protection for most water chemistries. EVERTOUGH™ Construction is backed by a
    comprehensive 5-year warranty which covers ALL components from the fan to the cold water basin, from louver to louver, including the motor (excluding the coil).

    • The following materials are used in EVERTOUGH™ Construction:
      • The cold water basin is constructed with the TriArmor® Corrosion Protection System. The basin is leak tested at the
        factory and warranted against leaks and corrosion for 5 years.
      • Designated steel components above the cold water basin are constructed of heavy-gauge G-235 mill galvanized steel and further protected with a thermosetting hybrid polymer.
      • The distribution system is non-corrosive Schedule 40 PVC.
      • Other components such as the strainer, within the basin will be constructed of stainless steel.

        EVERTOUGH™ Construction Installation

        EVERTOUGH™ Construction Installation

  • Thermosetting Hybrid Polymer (Option) — A thermosetting hybrid polymer, used to extend equipment life, is
    applied to select G-235 mill galvanized steel components of the unit. The polymerized coating is baked onto the G-235 mill galvanized steel and creates a barrier to the already corrosion resistant galvanized steel. The thermosetting hybrid polymer has been tested to withstand 6,000 hours in a 5% salt spray without blistering, chipping, or losing adhesion.
  • Stainless Steel (Option)

    • Welded Stainless Steel Cold Water Basin   A welded stainless steel cold water basin is available. All steel panels and structural members of the cold water basin are constructed from stainless steel. Seams between panels inside the cold water basin are welded, providing an advantage over bolted stainless steel cold water basins for minimizing susceptibility to leaks at basin seams. The basin is leak tested at the factory and welded seams are provided with a 5-year, leakproof warranty.

      Welded Stainless Steel Cold Water Basin

      Welded Stainless Steel Cold Water Basin

    • All Stainless Steel Construction Steel panels and structural elements are constructed of stainless steel. Seams between panels inside the cold water basin are welded. The basin is leak tested at the factory and welded seams are provided with a 5-year leak-proof warranty.

Coil Configurations

  • Standard Serpentine Coil — The standard cooling coil is constructed of continuous lengths of all prime surface steel. The coil is hot-dip galvanized after fabrication (HDGAF) to apply a thick zinc corrosion barrier over the entire exterior surface of the coil. The coil is designed for low pressure drop with sloping tubes for free drainage of fluid. Each coil is pneumatically tested at 375 psig (2,586 kPa) and is fabricated per ASME B31.5 standards to ensure the highest quality and integrity.

    Standard Coil Construction

    Standard Coil Construction

  • Standard Low Pressure Drop Coil Designs Multiple coil configurations have been designed by BAC and are available to meet all system pressure drop requirements. A higher pressure drop across the coil requires greater system pumping energy and therefore increases operating costs. These coil configurations drastically reduce pressure drop while ensuring the highest thermal performance.
  • Cleanable Header Coil (Option) — The cleanable header tube bundle provides removable cover plates on the inlet and outlet header boxes to permit access to each serpentine tube circuit for solvent or air-pressure cleaning. Coil material options include carbon steel coils (hot-dip galvanized outside surface). Each coil is pneumatically tested at 125 psig (860 kPa).

    Cleanable Header Coil

    Cleanable Header Coil

  • Stainless Steel Coil (Option) Coils are available in stainless steel for specialized applications. The coil is designed for low pressure drop with sloping tubes for free drainage of fluid. Each coil is pneumatically tested at 375 psig (2,586 kPa) and is fabricated per ASME B31.5 standards to ensure the highest quality and integrity.

    Stainless Steel Coil Construction

    Stainless Steel Coil Construction

  • Straight-Through Cleanable Coil (Option) A header box with a removable cover plate at each end of the coil allows access to every tube end for mechanical cleaning or plugging. It is available in carbon steel (hot-dip galvanized inside and out). Each coil is pneumatically tested at 125 psig (860 kPa).

    Straight-Through Cleanable Coil

    Straight-Through Cleanable Coil

  • ASME U Designator Coil (Option) — BAC offers coils that are certified in accordance with the ASME Boiler and Pressure Vessel Code, Section VIII, Division I. ASME U designated coils are available for projects requiring ASME certified pressure vessels and involve 3rd party inspection and certification. Standard ASME U designated coils are rated at 340 psig (2,344 kPa) maximum allowable working pressure, and they are pneumatically tested at 375 psig (2,586 kPa).
  • Extended Suface (Finned) Coil (Option) Coils are available with half or all rows finned at 5 fins per inch for seasonal wet/dry operation. The fins increase the surface area of the coil, therefore increasing the heat transfer capability. The coil is hot-dip galvanized after fabrication (HDGAF) to apply a thick zinc corrosion barrier over the entire exterior surface of the coil and fins. BAC coils are designed for low pressure drops and to be completely drainable with sloping tubes for free drainage of fluid. Each coil is pneumatically tested at 375 psig (2,586 kPa) and is fabricated per ASME B31.5 standards to ensure the highest quality and integrity.
  • Multiple Circuit Coil (Option) Split coil configurations are available to allow separate process fluid loops through the same unit. Separate loops may be needed for multiple applications requiring different temperature processes or multiple types of process fluids.

    Multiple Circuit Coils

    Multiple Circuit Coils

  • Note: A Canadian Registration Number (CRN) is required for all pressure vessels over 15 psig entering Canada. The CRN identifies that the design of a boiler, pressure vessel, or fitting has been accepted and registered for use in Canada. CRN is available for all BAC Dual and TriCoil configurations shipped into Canada.

Drive System Options

  • Standard BALTIDRIVE® Power Train — The BALTIDRIVE® Power Train utilizes special corrosion resistant materials of construction and state-of-the-art technology to ensure ease of maintenance and reliable year-round performance. This BAC engineered drive system consists of a specially designed powerband and two cast aluminum sheaves located at minimal shaft centerline distances to maximize belt life. As compared to a gear drive system, this specially engineered belt drive system provides many advantages. The BALTIDRIVE® Power Train requires only periodic inspection of components and belt tensioning, which is simple with a single nut adjustment, and requires less downtime. Only fan bearing lubrication is required for routine maintenance. Belt drive systems also have the added advantage of being suitable for variable frequency drive (VFD) applications without requiring expensive optional accessories.

    BALTIDRIVE® Power Train Fan System

    BALTIDRIVE® Power Train Fan System

  • Independent Fan Operation (Option) Models FXV-0809, FXV-0812, and FXV-1212 are provided with one fan motor driving two fans. The FXV-0818, and FXV-1218 are provided with two fan motors driving three fans as standard. The independent fan option consists of one fan motor and drive assembly for each fan to allow independent operation, adding an additional step of fan cycling and capacity control. This ensures redundancy for the fan and motor system.

    BALTIGUARD™ Fan System Provides Built in Redundancy

    BALTIGUARD™ Fan System Provides Built in Redundancy

  • BALTIGUARD™ Fan System (Option) — The BALTIGUARD™ Fan System consists of two standard single-speed fan motor and drive assemblies. One drive assembly is sized for full speed and load, and the other is sized approximately 2/3 speed and consumes only 1/3 the design horsepower. This configuration provides the reserve capability of a standby motor in the event of failure. As a minimum, approximately 70% capacity will be available from the low horsepower motor, even on a design wet-bulb day. Controls and wiring are the same as those required for a two-speed, two-winding motor. Redundant motors are available by increasing the size of the standby fan motor of the BALTIGUARD™ Fan System to the size of the main motor. This provides 100% motor redundancy and the greatest level of reliability.

    BALTIGUARD™ Fan System Used for VFD Applications

    BALTIGUARD™ Fan System
    Used for VFD Applications

  • BALTIGUARD PLUS™ Fan System (Option) — The BALTIGUARD PLUS™ Fan System builds on the advantages of the BALTIGUARD™ Fan System by adding a variable frequency drive (VFD) to either the pony or the main motor, depending on
    system requirements. This offers the benefits of additional capacity control and energy savings, along with the redundancy offered by the BALTIGUARD™ Fan System. Alternatively, a VFD can be added to both the pony and main motor for complete capacity control and redundancy under any load.

Cold Water Basin

The spray water collects in the cold water basin which is pumped back over the heat transfer coil. During operation, the FXV cold water basin helps eliminate any stagnant water zones, which are susceptible to biological growth.

  • Standard Mechanical Water Level Control-Mechanical make-up valves must operate continuously in the moist and turbulent environment existing within evaporative cooling equipment. Due to this environment, the operation of the valve must be simple, and the valve must be durable. BAC’s high quality mechanical water level control assembly is standard with all units, and has been specially designed to provide the most reliable operation while being easy to maintain. This accessory is omitted for remote sump applications.

    Mechanical Water Level Control

    Mechanical Water Level Control

  • Low and High Level Alarm Float Switches (Option)-Low and high level alarm float switches are available to provide added control to your equipment operation. Level alarms can alert operators to an abnormal operating condition to ensure the highest system efficiency with minimal water usage.

Water Distribution System

  • Standard Spray Water Pump  The FXV water distribution system comes standard with an integral spray water pump sized to distribute the recirculating water over the coil maximizing capacity. The patented BAC 360 Spray Nozzles are non-clog, ensure even flow over the coil area, and are simple to remove for maintenance. Parallel flow of air and spray water allow for inspection and access to the top of the coils during full operation.

    Standard Spray Water Pump

    Standard Spray Water Pump

  • Redundant Pumps An optional secondary spray pump is available. A manual valve will be supplied.

Fill

  • Standard Fill — Standard fill can be used in applications with spray water temperatures up to 130°F (54.4°C). The fill and drift eliminators are per ASTM E84.

    BACross® Fill Manufacturing

    BACross® Fill Manufacturing

Shipping and Rigging

  • Knockdown Units (Option) Knockdown units are available for jobs where access to the cooling tower location is limited by elevators, doorways, or similar obstacles, where lifting methods impose very strict weight limits, or where the shipping cost of a fully assembled tower is excessive. All materials of construction and design features are the same as those of a factory assembled unit. Welded stainless steel cold water basins and TriArmor® Corrosion Protection System cold water basins are excluded due to the need for in-plant assembly.

Sound Options

  • Standard Fan — The fan provided for all FXV Closed Circuit Cooling Towers is selected to optimize low sound levels and maximize thermal performance. Thermal performance with the Standard Fan has been certified in accordance with CTI Standard STD-201.
  • Low Sound Fan (Option) The Low Sound Fan option reduces sound up to 8 dBA. Adding a high solidity fan allows for decreased fan speed, which proportionally decreases sound levels. The thermal performance with the Low Sound Fan has been certified in accordance with CTI Standard STD-201.

    Low Sound Fan

    Low Sound Fan

  • Whisper Quiet Fan (Option) — For the most extreme sound limitations, BAC’s Whisper Quiet Fan reduces sound up to 14 dBA. The FXV thermal performance with the Whisper Quiet fan is certified in accordance with CTI Standard STD-201.
  • Sound Attenuation(Option) — Factory designed, tested, and rated sound attenuation options are available for both the air intake and discharge. Consult your local BAC Representative regarding available options. The FXV thermal performance with intake sound attenuation is certified in accordance with CTI Standard STD-201.
  • Single Side Air Intake Single-side air intake units can be placed close to solid walls, reducing the size of enclosures and allowing for more profitable use of premium space. Also, the panel opposite the air intake, called the blankoff panel, is inherently quiet. Positioning the blankoff panel towards the sound sensitive direction insulates sensitive areas from higher sound levels.

    Single Side Air Intake

    Single Side Air Intake

Air Intake

  • Combined Inlet Shields The combined inlet shields’ (CIS) bent flow path blocks sunlight from the cold water basin and acts as a screen to prevent debris from entering the unit. These benefits result in a significant reduction in algae growth, debris accumulation, and scale build-up. CIS are constructed from corrosion and UV resistant PVC and are installed in easy to handle sections to facilitate removal, inspection, and replacement. The use of CIS results in lower maintenance costs and ease of maintenance over the life of the unit.

    Combined Inlet Shields (CIS)

    Combined Inlet Shields (CIS)

Access Options

  • Internal Walkway-An internal walkway is available, allowing access to the spacious plenum area for maintenance and inspection of the cold water basin, make-up, fill, and drive system.
  • Motor Removal System (Option)-The removal system includes davit arm(s) and access panels on the side opposite of the Air intake face, facilitating motor replacement.
  • External Platform (Option)-Every external platform is preassembled and pre-fitted at the factory to ensure that every component will fit and function exactly as described. The platform will ship secured in the basin and attach quickly in the field with minimum fasteners. Platforms, ladders and safety cages can be added at the time of order or as an aftermarket item. Safety gates are available for all handrail openings. All components are designed to meet OSHA requirements.

    External Platform and Ladder with Access Door Platfor

    External Platform and Ladder with Access Door Platfor

  • Access Door Platform and Ladder Packages (Option)-An access door platform is available to allow access to the unit when installed on elevated supports. This option allows for safe access to the unit, as well as a working platform to stage tools for maintenance.
  • Internal Ladder (Option)-For access to the motor and drive assemblies on single air intake models, a movable internal ladder is available.
  • Internal Service Platform and Ladder Packages (Option for two pieces)-For access to the motor and drive assemblies, an internal ladder and upper service platform with handrails is available on larger units. Safety gates are available for all handrail openings, and all components are designed to meet OSHA requirements. An internal walkway is required with this package.

    Internal Service Platform and Internal Ladder

    Internal Service Platform and Internal Ladder

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