PHW

PHW Parallel Hybrid Closed Circuit Cooler

Hot process fluid enters the coil through the bottom coil connection(s). Cooled water from the unit basin is pumped through spray distribution nozzles and floods over the coil(s).

The new 14’ x 26’ PHW Parallel Hybrid Closed Circuit Cooler was designed to maximize capacity and optimize energy efficiency in EVAPCO’s single largest closed circuit cooler cell available. It offers more capacity and layout flexibility than ever before. The PHW offers high tonnage capability specifically for Industrial Plants, Data Centers, and Large HVAC applications, where the end user requires the fewest number of units, connections, and fans. This mechanical induced draft, crossflow Closed Circuit Cooler utilizes EVAPCO’s Crosscool™ Internal Tube Enhancement with the patented elliptical tube Sensi-Coil® Technology and includes EVAPCO’s New and Improved XPak™ Crossflow Fill, on both the 14’ x 26’ and the 12’ x 24’ PHW. The PHW has undergone extensive thermal testing to ensure each closed-circuit cooler will perform as specified. As with all EVAPCO products, each PHW closed circuit cooler is supplied with a written Thermal Performance Guarantee.

Hot process fluid enters the coil through the bottom coil connection(s). Cooled water from the unit basin is pumped through spray distribution nozzles and floods over the coil(s). Ambient air is simultaneously drawn into the unit at the top in parallel flow with the water over the coil. A portion of the recirculated water evaporates into the air stream. This evaporation process and the cooled water flowing over the tubes removes heat from the process fluid. The cooled process fluid leaves the coil through the top coil connection(s) for return to the system. The recirculated water that was not evaporated falls through a crossflow fill section located below the coil. Air is drawn through the end of the unit and fill section removing additional heat from the water through evaporation. The cooled water collects in the basin for recirculation over the coil.

The hot, saturated air from both the coil and fill sections passes through internal drift eliminators to strip water droplets entrained in the air stream. The unit fan(s) then discharge the saturated air out of the top of the unit at a high velocity, where it dissipates into the atmosphere.

  • Patented Sensi-Coil® Technology
    • Increases total coil surface area by 20%
    • Features CrossCool™ Internal Tube Enhancement for better heat transfer
    • Innovation of the Thermal Pak II® coil
  • XPak™ Bonded Block Fill (14’ & 12’ Wide Units)
    • Made of inert PVC resistant to rot or decay
    • Handles water temperatures up to 120°F
    • Flame spread rating < 25 per ASTM E84
  • High-Efficiency Drift Eliminators
    • Limits drift rate to < 0.002% of recirculating water rate
    • Reduces water loss during wet operation
    • Constructed from durable PVC material
  • Superior Air Inlet Louver Design
    • Made from inert PVC
    • Two-pass design reduces splash-out
    • Ensures long-term durability
  • Stainless Steel Casing & Fan Section
    • Available in Type 304 or 316 stainless steel
    • Covers the entire upper section for durability
  • Sound Reducing Options
    • Super Low Sound Fan
    • Low Sound Fan
  • Pressurized Water Distribution System
    • ZMII® spray nozzles with 1-1/4" diameter opening
    • 1-1/4" splash plate clearance
    • PVC pipes with threaded end caps
    • Excellent coil coverage and scale prevention
  • Stainless Steel Water Touch Basin
    • Available in Type 304 or Type 316 stainless steel
    • Covers basin area and support columns
    • Welded seams ensure leak-free operation
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