Hot process fluid enters the inlet header connection, shown in red. Heat from the process fluid dissipates through the coil tubes surface and out to the fins. The adiabatic system involves fully wetting a fibrous pad located in front of the coil. Ambient air is drawn through the adiabatic pre-cooling pad by the fans located on top of the unit. The air is humidified as it passes through the adiabatic pad, decreasing the ambient dry bulb temperature within a few degrees of the ambient wet bulb temperature. This new air temperature is referred to as the depressed dry bulb. This pre-cooled air is then drawn through the tube and fin surface, offering a substantial increase in heat rejection capability. Heat from the process fluid transfers to the air and discharged to the atmosphere. Cool process fluid exits the unit through the connections shown in blue.
Adiabatic Pre-cooling System
Reduced or Eliminated Water Consumption
Compared to traditional evaporative systems, the eco-Air series will either eliminate or dramatically reduce water consumption. Adiabatic models only use water when the ambient conditions and load require it. Reducing water consumption also reduces the ongoing expenses related with the cooling equipment such as purchasing, treating, and disposing of water. When the eco-Air adiabatic models are used in conjunction with the EVAPCO controls package, water conservation is maximized based on proprietary PLC logic.
Reduced Maintenance
Scaling, corrosion, and water born bacteria concerns are minimized or eliminated with dry and adiabatic cooling equipment. The eco-Air Series reduces the maintenance traditionally associated with fully evaporative systems. The eco-Air adiabatic condenser is designed as a once through system, meaning it has no pump and no basin to hold water, which further reduces the time required for maintenance. Additionally, the adiabatic pads filter the air before reaching the coil, limiting the exposure of dirt and debris to the tube and fin heat transfer surface. Both NEMA and EC motor options require zero routine maintenance. There are no bearings to grease, belts to adjust, or fans to pitch and balance.
Advanced Motor Technology
Available with Electronically Commutated (EC) or NEMA fan motor designs.
The motors on the eco-Air series are pre-wired at the factory to UL standards, reducing costs associated with field wiring. As standard, all units are wired to a common terminal box. Adding the EVAPCO controls package allows for both single point power supply and complete capacity control.
NEMA
EC
EC motors are the latest development in energy savings and speed control.
The high efficiency wing tip fans operate up to 3 dB less than conventional blade fans with improved part speed energy consumption.
Advanced Construction
Superior Stainless Steel Technology
Coil Design
Through the use of computational fluid dynamics (CFD) modeling software, finite element heat transfer analysis, and proprietary coil performance calculation methods, EVAPCO engineers have identified significant design elements to improve the finned coil performance. The extensive computer modeling has been refined and verified through coil performance evaluation in EVAPCO’s state of the art research laboratories.
Coil Return Bend Covers
Protects the coil return bends during handling and operation
Large Inspection Panel
Easily removable for interior inspection and access to coils and fan motors
Easy Rigging
All units are designed to ship and install as a single piece
Fork Lift Channels
Standard on all units up to 27 feet in length
Individual Motor Disconnect Switches
Mounted at each fan motor to electrically isolate individual motors
Internal Step Deck
Platform and grab rail for access to elevated fan section components
Epoxy Coated Fins
EVAPCO Control Package
The EVAPCO Control Package is factory mounted and wired when configuration and shipping limitations allow.
Provides operating sequence and fan speed control based on real time heat loads and ambient conditions.
