Dry Coolers (NG)

The Ultimate in Quality, Reliability, and Performance

Engineered for maximum efficiency and reliability, Seresco’s NG Series of proprietary outdoor dry coolers are the ideal heat rejection technology for medium and large-scale fluid-cooled applications, available in capacities from 116-2,300 MBH.


  • Heat rejection capacity from 116-2,300 MBH
  • EC motor fans controlled on 0–10vdc signal for maximum cooling performance with minimum energy consumption. Very low-maintenance motor. Capable of higher pressure drops. Variable fan speed based on leaving fluid temperature control
  • Fluid-cooled systems are inherently environmentally friendly because of their low refrigerant charge
  • V-bank fin-and-tube coils increase surface area for heat rejection while keeping compact footprint
  • Design minimizes air and fluid pressure drop
  • Each section is equipped with hose drain valves and air vents
  • Fully-coated coils (3,000-hour salt spray rating) repel dirt build up, making them very low maintenance


  • Coils are fully dipped in a coating that not only gives the best possible corrosion protection but also repels dirt build up
  • Two-speed fans allow the fans to operate at lowest possible power consumption mode, ramping up to full speed only when needed
  • Fan blades are the latest ultra-quiet design from the world leaders in heat exchanger fans for quiet and efficient air movement
  • The “V” configuration allows larger coils and higher airflows in the smallest possible footprint
  • Lightweight and compact for easy handling and flexible installation
  • Twin 4-row coils with the latest tube and fin technology provide maximum fluid heat rejection and durability
  • Very low internal fluid pressure drops further help reduce pump operating costs
  • PVC ANSI raised flanges make fluid connections easy


Packaged pump kits
Unit-mounted disconnects
Available voltages are 208-240, 480, 600 VAC, three phase (also available in single phase)

Performance Summary

Performance Without Pump Kit

ModelFan QtyCapacity (3ph)*Fan FLAMin Circuit AmpacityMax Fuse Size, MOPNoise Level (@30 ft)DimensionsMAX FLOW RATE
NG-V-011116 7003,11,51,23,91,91,515151550 / 5653544635030
NG-V-01*1111 2005,3--6,6--15--49 / 5753544635025
NG-V-021160 2008,34,53,610,45,64,517,5151554 / 6053584645030
NG-V-02**1134 8009--11,2--2044 / 5153584645025
NG-V-111248 7008,34,53,610,45,64,517,5151554 / 6054675250050
NG-V-11**1200 0009--11,2--20--49 / 5554675250040
NG-V-122388 8008,34,53,618,710,18,1402017,557 / 631026752120065
NG-V-224777 5008,34,53,635,319,115,350302560 / 6696791002400130
NG-V-3261 166 3008,34,53,651,928,122,570403062 / 6796791483600195
NG-V-4281 555 1008,34,53,668,537,119,790453563 / 6996791964800260
NG-V-52101 943 8008,34,53,685,146,136,9100504564 / 6996792446000325
NG-V-62122 332 6008,34,53,6101,755,155,1125605065 / 7096792927200390
*Single phase model. **Single phase, fan motor w/ VFD. Lower sound level for 75% load. Rated conditions: 100°F air-on, 125°F entering fluid, 35% propylene glycol at unit max flow. E&OE — Subject to Change Without Notice.

Performance With Pump Kit

ModelPump QtyPump FLAMin Circuit AmpacityMax Fuse Size, MOPDimensions
*Single phase model. Units with pump kit have same capacities, flow rate, fan FLA and noise levels