cATC Evaporative Condenser

The containerized Advanced Technology evaporative condenser provides an induced-draft, axial fan solution for a wide array of outdoor cooling capacities, and is optimally designed to fit inside a shipping container to reduce ocean freight costs. Bringing EVAPCO's Advanced Technology design to closed circuit coolers, the cATC features the Thermal-Pak II® Coil with CrossCool™ Internal Tube Enhancement, offering incredible evaporative cooling capacity using its advanced counterflow design.

  • Containerized: designed to fit completely inside 20 and 40 foot shipping containers, reducing costs
  • Available in a huge range of models and box sizes unparalleled in the industry
  • Ranging in capacity from 128 to 357 nominal tons
  • IBC Compliant – Independently certified by the International Building Code to withstand seismic and wind load forces in North America

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The refrigerant gas discharges from the compressor into the inlet connection of the cATC condenser. Heat from the refrigerant dissipates through the coil tubes to the water cascading downward over the tubes. Simultaneously, air is drawn in through the air inlet louvers at the base of the condenser and travels upward over the coil opposite the water flow. A small portion of the water evaporates, removing heat from the system. The warm moist air is drawn to the top of the evaporative condenser by the fan and discharged to the atmosphere. The remaining water falls to the sump at the bottom of the condenser where it recirculates through the water distribution system and back down over the coils.

Thermal-Pak II Coil

EVAPCO's patented Thermal-Pak II coils assures maximum cooling capacity. The airflow through the coil is counterflow to the fluid flow, providing the most efficient heat transfer process. A special coil design is utilized to reduce the air pressure drop through the unit while maximizing tube surface area and increasing its heat transfer capabilities.

  • Elliptical return bends allows for more circuits per coil bundle increasing the maximum capacity per footprint
  • Coil located in airstream increasing dry bulb switchover temperature
  • CrossCool Internal Tube Enhancement increase fluid turbulence providing additional evaporative capacity
  • Available in type 304 SS or type 316 SS construction
Drift Eliminators
  • Limits the drift rate to less than 0.001% of the recirculating water rate
  • Limit the potential of spreading Legionella
  • 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
Stainless Steel Thermal-Pak II Coil
  • Available in Type 304 or Type 316 Stainless Steel

Stainless Steel Coils provide Superior corrosion resistance for hostile environments and is available with the standard EVAPCO lead time! The Evapco 304 SST coil option can be manufactured as an ASME coil.

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
cATC Unit Specifications 23.72 KB Specification Sheet English
cATC, cATWB, cAT Bulletin 5.05 MB Catalog English
Equipment Layout Manual for Cooling Towers, Evaporative Condensers & Closed Circuit Coolers 3.52 MB Layout English
Low Sound Solutions Brochure 1.13 MB Catalog English
Maintenance Check List 56.28 KB O & M English
Operation and Maintenance Instructions for Closed Circuit Coolers and Condensers 11.09 MB O & M English
Piping Evaporative Condensers 655.55 KB Layout English
Rigging and Assembly Instructions for cATC, cATW, and CAWTB 2.02 MB Rigging English
Rigging and Assembly Instructions for Condensers and Coolers 1.54 MB Rigging English
Drawing Types
Media name Drawing Type Drawing Format Product Model
CATC-181 CAD Drawing CAD Drawing CAD Drawing (.dwg) CATC-181
CATC-181 CAD Drawing CAD Drawing CAD Drawing (.dwg) CATC-181
CATC-181 Steel Support (English) Steel Support Print (.pdf) CATC-181
CATC-181 Steel Support (English) Steel Support Print (.pdf) CATC-181
CATC-181 Steel Support (Metric) Steel Support Print (.pdf) CATC-181
CATC-181 Steel Support (Metric) Steel Support Print (.pdf) CATC-181
CATC-181 Unit Certified (English) Unit Certified Print (.pdf) CATC-181
CATC-181 Unit Certified (English) Unit Certified Print (.pdf) CATC-181
CATC-181 Unit Certified (Metric) Unit Certified Print (.pdf) CATC-181
CATC-181 Unit Certified (Metric) Unit Certified Print (.pdf) CATC-181