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ATC-DC Evaporative Condenser

Dramatically reduced water consumption

Thanks to EVAPCO’s cutting edge finned coil technology, the eco-ATC-H is the ultimate solution for food process and large tonnage industrial process installations seeking the highest ambient dry bulb switchover temperatures, reduced water usage, high peak-load output, and plume abatement. The ultimate in wet/dry performance, every eco-ATC-H model has been engineered to provide high dry bulb switchover temperatures as compared other evaporative condenser technologies.

  • Potential for massive annual water savings
  • Every eco-ATC-H model is engineered to provide high dry bulb switchover temperatures
  • Plume reduction in evaporative mode, plume elimination in dry mode
  • Ranging in capacity from 131 to 1173 nominal tons
  • IBC Compliant – Independently certified by the International Building Code to withstand seismic and wind load forces in North America
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

ATC-DC_DryMode_PofO

The refrigerant gas is discharged from the compressor into the inlet of the ARID fin Pak® dry coil, which is positioned in the dry air stream above the unit’s drift eliminators and below the fan section; the axial fan draws into the unit, through the bottom inlet louvers. 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 refrigerant exits the ARID fin Pak coil, entering the Ellipti-fin coil® via the inter-connecting piping (by others); the remaining load dissipates through the tube and extended surface fins of the Ellipti-fin coil through sensible heat transfer. The condensed liquid flows out of the Ellipti–fin to the high-pressure receiver for return to the system. This mode of operation consumes NO WATER.

 

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

ATC-DC_EvaporativeMode_PofO

The refrigerant gas is discharged from the compressor into the inlet of the ARID fin Pak dry coil, which is positioned in the dry air stream above the unit’s drift eliminators and below the fan section. The axial fan draws into the unit, through the bottom inlet louvers. The air is drawn upward through the wet coil into the drift eliminators (which remove entrained water droplets from the air stream) and through the ARID fin Pak coil, where heat from the refrigerant gas transfers to the air as it comes into contact with the tubes and densely packed fins of the ARID fin Pak coil.

The refrigerant gas exits the ARID fin Pak coil and travels via inter-connecting piping (by others) to the inlet of the Ellipti–fin Coil located in the lower section of the eco-ATC-H Condenser. Water from the condenser’s sump is circulated over the wet coil as the ambient air is simultaneously drawn into the unit and travels up through the Ellipti–fin. A portion of the spray water evaporates into the air stream as it travels through the wet coil. This evaporative process cools the spray water, which in turn cools the coil tubes and extended surface fins. The cool tube walls and extended surface fins cause the refrigerant gas to give up heat and condense into a liquid. The condensed liquid flows out of the Ellipti–fin to the high-pressure receiver for return to the system. Water that has not evaporated falls into the sump and is recirculated through the water distribution system located above the Ellipti–fin.

Ellipti-fin Cooling Coil
  • The most effective coil design in the industry
  • 25% average increase in efficiency
  • Increases agitation of water and air, improving heat transfer
  • Elliptical fins increase surface area and heat transfer
  • Hot-dip galvanized for increased corrosion resistance
ARID fin Pak Dry Cooling Coil
  • 304L stainless steel construction
  • Aluminum manganese alloy fins for superior corrosion resistance
  • Accounts for roughly 30% of unit capacity
  • Significant plume abatement in evaporative mode
  • Plume elimination in dry mode
Drift Eliminators
  • Limits the drift rate to less than 0.001% of the recirculating water rate
  • Reduces water loss during wet operation
  • Constructed of an inert polyvinyl chloride (PVC)
Superior Air Inlet Louver and Screen Design
  • Constructed of an inert polyvinyl chloride (PVC)
  • Two pass design that minimizes splash-out and the potential for algae formation inside the tower
  • Framed in steel in easily removable sections
Pressurized Water Distribution System

EVAPCO's Zero Maintenance ZMII® spray nozzle remains clog free while providing even and constant water distribution, providing the industry's best performing non-corrosive, maintenance-free water distribution system.

  • ZMII spray nozzles have a 1-1/4" diameter opening and a 1-1/4" splash plate clearance
  • Mounted in corrosion-free PVC water distribution pipes that have threaded end caps
  • Provides unequaled coil coverage and scale prevention
Stainless Steel Water Touch Basin
  • Available in Type 304 or Type 316 Stainless Steel
  • Includes the entire basin area including the support columns and the louver frames
  • Welded basin seams for leak-free operation
Stainless Steel Casing & Fan Section
  • Available in Type 304 or Type 316 Stainless Steel
  • Includes the entire upper section including fan guard
Sound Sensitive Installations

Available with multiple equipment options to reduce the overall sound generated from the side or top of the unit.

  • Super Low Sound Fan
  • Low Sound Fan
  • Water Silencers
  • Discharge Attenuation
  • Offset Sound Attenuation Walls
FACTORY-MOUNTED Water Treatment Systems

Available with FACTORY-MOUNTED water treatment systems, providing environmentally sensitive alternatives for treating water in evaporative cooled equipment.

  • SmartShield solid chemical water treatment system
  • Pulse-Pure CHEMICAL-FREE water treatment system
Maintenance Accessories

Available with multiple equipment options to aid in the maintenance of the condenser.

  • External Service Platform
  • Basin Level Platform
  • Louver Plate
  • Ladder
  • Hinged Louver Door
  • Perimeter Handrails
  • Sump Sweeper Piping
  • Motor Davit with Base
Document Categories
Name File Size Type Language
Global Product Catalog 53.71 MB Catalog English
Operation and Maintenance Instructions for Closed Circuit Coolers and Condensers 14.68 MB O & M English
What's In Your Stainless Steel 422.04 KB White Paper English
eco-ATC-H Bulletin 17.97 MB Catalog English
Equipment Layout Manual for Cooling Towers, Evaporative Condensers & Closed Circuit Coolers 5.52 MB Layout English
Maintaining and Cleaning Stainless Steel 156.53 KB Engineering Bulletin English
Maintenance Schedule 87.79 KB O & M English
Refrigerant Piping Manual 15.05 MB Layout English
Rigging and Assembly - ATC-DC, eco-ATWB-H 2.96 MB Rigging English
The Effect of Scale Formation on Heat Transfer Coils 1.44 MB White Paper English
Product Model filter

Drawing Types
Media name Drawing Type Drawing Format Product Model
ATC-DC-1012I-25-1EF CAD Drawing CAD Drawing CAD Drawing (.dwg) ATC-DC-1012I-25-1EF
ATC-DC-1012I-25-1EF REVIT/3D Model Revit/3D Model Revit/3D Model (.rfa) ATC-DC-1012I-25-1EF
ATC-DC-1012I-25-1EF Steel Support (English) Steel Support Print (.pdf) ATC-DC-1012I-25-1EF
ATC-DC-1012I-25-1EF Steel Support (Metric) Steel Support Print (.pdf) ATC-DC-1012I-25-1EF
ATC-DC-1012I-25-1EF Unit Certified (English) Unit Certified Print (.pdf) ATC-DC-1012I-25-1EF
ATC-DC-1012I-25-1EF Unit Certified (Metric) Unit Certified Print (.pdf) ATC-DC-1012I-25-1EF
ATC-DC-1012I-25-2EF CAD Drawing CAD Drawing CAD Drawing (.dwg) ATC-DC-1012I-25-2EF
ATC-DC-1012I-25-2EF REVIT/3D Model Revit/3D Model Revit/3D Model (.rfa) ATC-DC-1012I-25-2EF
ATC-DC-1012I-25-2EF Steel Support (English) Steel Support Print (.pdf) ATC-DC-1012I-25-2EF
ATC-DC-1012I-25-2EF Steel Support (Metric) Steel Support Print (.pdf) ATC-DC-1012I-25-2EF