he process fluid enters the Thermal-Pak II coil through the top coil connection and circulates through the coils. The water distribution system cascades water over the tubes of the coil, transferring heat to the water. Air is drawn upward and over the coils by the axial fan, agitating the falling water and increasing the transfer of heat. A small amount of the recirculating water evaporates due to latent heat transfer through the tube and fin walls of the Thermal-Pak II coil, removing heat from the system. The cooled fluid then returns to the process via the bottom coil connection.
The original Advanced Technology closed circuit cooler provides an induced-draft, axial fan solution for a wide array of cooling applications. Bringing EVAPCO's Advanced Technology design to closed circuit coolers, the ATWB features the Thermal-Pak II Coil with CrossCool™ Internal Tube Enhancement, offering incredible evaporative cooling capacity using its advanced counterflow design.
- Available in a huge range of models and box sizes unparalleled in the industry
- Ranging in capacity from 91 to 37,765 MBH
- IBC Compliant – Independently certified by the International Building Code to withstand seismic and wind load forces in North America; available with IBC Upgraded Structural Design to meet the strictest of building requirements
- Independently certified by the Cooling Technology Institute
- Available with FM Approved Construction
- 7’ wide single and multi-cell box sizes available for containerized, export shipments
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Sensi-Coil Technology
- An innovation of the already powerful Thermal Pak II coil
- Increases total coil surface area by 20%
- Features EVAPCO’s CrossCool Internal Tube Enhancement
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Drift Eliminators
- Limits the drift rate to less than 0.001% of the recirculating water rate
- Reduces water loss during wet operation
- Constructed of inert PVC
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Superior Air Inlet Louver and Screen Design
- Constructed of inert PVC
- Two pass design that minimizes splash-out and algae formation
- Framed in steel, easily removable
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Pressurized Water Distribution System
- Clog free Evapjet spray nozzle
- Protected by casing panels and drift eliminators
- No biological growth or clogging
- Corrosion-free PVC pipes with end caps
- Full fill coverage
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Redistribution Basin
- Even water loading of Sensi-Coil
- Enclosed and protected
- Acts as debris screen
- Easy inspection with louver removal
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Stainless Steel Water Touch Basin
- Type 304 or 316 Stainless Steel
- Includes basin, supports, and louvers
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Stainless Steel Casing & Fan Section
- Type 304 or 316 Stainless Steel
- Entire upper section with fan guard
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Stainless Steel Sensi-Coil
- Corrosion resistant, CTI certified
- Available in Type 304 or 316 Stainless Steel
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Sound Sensitive Installations
- Super Low Sound Fan
- Low Sound Fan
- Water Silencers
- Discharge Attenuation
- Offset Sound Walls
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FACTORY-MOUNTED Water Treatment Systems
- SmartShield solid chemical system
- Pulse-Pure CHEMICAL-FREE system
- NEW EVAPCO Water Saver
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NEW Stainless Steel Cold Water Basins Option
- Type 304 or 316 Stainless Steel
- Includes cold and redistribution basins
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NEW FM Approved Construction
- Meets FM Global requirements
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NEW Upgraded IBC Construction
- Meets seismic and wind loads
- 1.5 Importance Factor available
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Maintenance Accessories
- External service platform
- Basin level platform
- Sloped ladder
- Hinged louver access door
- Motor davit with base
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