eco-ATWB-H

Thanks to EVAPCO’s cutting edge finned coil technology, the eco-Hybrid is the ultimate solution for both HVAC.

Thanks to EVAPCO’s cutting edge finned coil technology, the eco-Hybrid is the ultimate solution for both HVAC and large tonnage industrial process installations seeking the highest dry bulb switchover temperatures, reduced water usage, high peak-load output, and plume abatement. Available with a sophisticated SAGE control system and factory-mounted water treatment.

  • Highest dry bulb switchover temperature in all EVAPCO products
  • Dry coil piped in series with evaporative coil to dramatically reduce water consumption, ALWAYS, even in evaporative mode
  • Plume reduction in evaporative mode, plume elimination in dry mode
  • Ranging in capacity from 1,046 - 20,076 MBH
  • IBC Compliant – Independently certified to withstand seismic and wind load forces at ALL building locations in North America
  • Independently certified by the Cooling Technology Institute

Dry Mode

  • The unit maintains dry mode operation until the temperature set point can no longer be met
  • While in dry mode, no water is used, thus plume is eliminated
  • Dry mode operation can save thousands in water usage and sewage costs annually
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In dry mode, process fluid enters the ARID fin Pak coil through the top coil connections, the fan activates, drawing air upward through the louvers and across the coils. As the air passes over the coil, a portion of the load is dissipated to the atmosphere through the tube walls and fins through sensible heat transfer. The warm process fluid exits the ARID fin Pak coil, entering the Ellipti-fin coil through the factory installed piping; the remaining load dissipates through the tube and extended surface fins of the Ellipti-fin coil through sensible heat transfer.

Evaporative Mode

  • Once the temperature set point can no longer be met, the unit switches to evaporative mode
  • The evaporative mode utilizes evaporative and dry cooling simultaneously to significantly increase cooling capacity
  • The ARID fin Pak coil reduces water loss and plume by heating saturated discharge air as it leaves the unit
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Process fluid enters the ARID fin Pak coil through the top coil connections, the fan and pump motors activate. As the air passes over the ARID fin Pak coil, a portion of the load dissipates to the atmosphere through the tube walls and fins through sensible heat transfer. The warm process fluid transfers to the Ellipti-fin coil, where the spray system cascades water over the tubes of the Ellipti-fin 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 Ellipti-fin coil.

  • Ellipti-fin Cooling Coil
    • The most effective coil design in all EVAPCO products
    • 25% average increase in efficiency
    • Elliptical fins increase surface area and heat transfer
    • Hot-dip galvanized for increased corrosion resistance
  • Drift Eliminators
    • Limits drift rate to less than 0.001% of recirculating water
    • Helps reduce Legionella risk
    • Made of inert polyvinyl chloride (PVC)
  • Pressurized Water Distribution System
    • ZMII spray nozzles remain clog-free
    • 1-1/4" diameter and splash plate clearance
    • Mounted in corrosion-free PVC pipes
    • Provides coil coverage and scale prevention
  • Stainless Steel Casing & Fan Section
    • Available in Type 304 or 316 Stainless Steel
    • Includes the entire upper section including fan guard
  • Factory-Mounted Water Treatment Systems
    • Smart-Shield solid chemical system
  • ARID fin Pak™ Dry Cooling Coil
    • Copper tubing construction
    • Aluminum manganese alloy fins
    • Rejects ~30% of heat load
    • Plume abatement in evaporative mode
    • Plume elimination in dry mode
  • Superior Air Inlet Louver and Screen Design
    • Made of inert PVC
    • Two-pass design minimizes splash-out & algae
    • Framed in steel, removable sections
  • Stainless Steel Water Touch Basin
    • Available in Type 304 or 316 Stainless Steel
    • Includes basin area, columns, and louver frames
  • Sound Sensitive Installations
    • Super Low Sound Fan
    • Low Sound Fan
    • Water Silencers
    • Discharge Attenuation
    • Offset Sound Attenuation Walls
  • Maintenance Accessories
    • External service platform
    • Basin level platform
    • Sloped ladder
    • Hinged louver access door
    • Motor davit with base
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