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HVAC Systems

The Power of Heating, Ventilation, and Air Conditioning (HVAC) Excellence 

With over 100 years of combined nuclear Heating, Ventilation, and Air Conditioning (HVAC) experience, Curtiss-Wright and our teaming partners are the industry’s leading comprehensive source for all HVAC products and solutions. Curtiss-Wright provides custom tailored all-encompassing support for any HVAC need, supplying an exhaustive range of commercial and safety related equipment and services ranging from safety-related chillers, dampers, and motors, to commercial grade dedication programs, equipment qualification expertise, OEM replacement, safety related and non-safety related digital solutions, and reverse engineering. All of Curtiss-Wright's solutions cover every aspect of the HVAC process from evaluation, to design, to manufacturing, to qualification and after order support.

Curtiss-Wright’s highly collaborative teaming partners ensure that our HVAC portfolio can fulfill any customer need – these strategic agreements with key suppliers for equipment and intellectual property create a unified source for all HVAC requirements. From ECU's manufacture of application-specific chillers and equipment, to Reuland's custom designed and manufactured motors, to Ruskin's high performance dampers and louvers, and our many other products, Curtiss-Wright rises to meet any challenge.




    Curtiss-Wright Nuclear and ECU have paired ECU’s chiller design and manufacturing capabilities with Curtiss-Wright’s commercial grade dedication and equipment qualification expertise to meet the industry need for safety-related, precision engineered HVAC chillers and equipment.  We use small, cost effective, modular designs that can be assembled into larger skids, and are easy to manufacture, test, transport and install, even in confined spaces, allowing for better control of both partial and full loads. Additionally, by using electro-mechanical devices for unit control and operation, we eliminate the added cost of maintaining a safety-related software program; system data for maintenance and trending information can be gathered using existing control connections, eliminating a complete digital upgrade expense, and making our offerings capable of providing OEM replacement, reverse engineered, and custom designed solutions for every need.

    Design Features

    • Capabilities from 3000 BTUH to 200 Ton
    • Water- or air-cooled condenser
    • Environmentally friendly HFC refrigerants: R-134a, R-407C, R-410A
    • Modular design to suit installation egress requirements
    • Single-stage or multi-stage design
    • Hermetic motor with refrigerant cooled system
    • Shell and tube type or high efficiency brazed/welded plateheat exchanger
    • Sub cooler and/or de-superheat injection available
    • Stable refrigerant flow control at full load
    • Full hot gas bypass for part load design
    • Low noise and low vibration
    • High efficiency and high reliability design
    • Designed to match current footprint, volumetric, and inlet/outlet locations

    Design Consideration

    • Critical design characteristics for operation
    • Overall system design, simple vs. complex requirements
    • Built in redundancy using multiple smaller compressors vs. one large compressor
    • Part load considerations for sizing compressors and optimize efficiency
    • Compressor protection, temperature and pressure monitoring
    • Failure modes
    • Human Factors and HMI
    • Selection of industry recognized components
    • Analog controls using proven electro-mechanical components
    • Digital monitoring
    • Maintenance
    • Weather protection for outdoor units
    • Power, weight, and size restrictions
    • Optimum efficiency, use of available power
    • Code requirements
    • Seismic testing
    • EMI/RFI testing
    • Environmental testing

    Unit Control Cost Effective Design

    • Standard analog for operation
    • Optional non-safety digital for data and trending information
    • System monitoring/protection for:
      • Cooling loss
      • Refrigerant loss
      • Water flow loss
      • Power loss
      • Control loss
      • High head pressure
      • Low suction pressure
    • Custom designed to fit existing space per your specifications
    • Engineered to meet your specifications and designed for forty years of reliable service


    For over 50 years, Ruskin has been a leader in the engineering, design, and manufacture of high performance dampers and louvers, and with Curtiss-Wright’s exclusive partnership, Ruskin provides these products for use in nuclear safety-related applications. Specializing in a wide variety of dampers, air and access doors, and louvers, Ruskin provides for every need and function, including products for control, backdraft, smoke, fire, pressure relief, and balancing in every configuration imaginable. These products support Curtiss-Wright’s complete HVAC product portfolio, giving nuclear plants the ability to maintain and install new turnkey safety-related HVAC systems.


    • Fire Dampers
    • Fire Sleeves
    • Fire Angles
    • Ceiling Fire Dampers
    • Access Doors
    • Combination Fire/Smoke Dampers
    • Smoke Dampers
    • Air Doors
    • Control Dampers
    • Backdraft Dampers and Actuators
    • Louvers, Penthouses, and Brick Vents


    • Control
    • Backdraft
    • Manual
    • Smoke/Fire
    • Pressure Relief
    • Diffuser
    • Balancing
    • And More


    • Static, Dynamic, Curtain, and Multi-Blade options available
    • Customizable to any scale or need
    • Out-of-the-Wall Installations Available
    • Material Options include Extruded Aluminum, Non-Metallic, Stainless Steel, Heavy Duty Aluminum and Steel
    • True Round or Square to Round Transitions


    As a leading supplier of custom designed and manufactured motors for the most challenging applications, Reuland makes an ideal contributor to Curtiss-Wright’s HVAC offerings. As many original motor OEMs exited the nuclear power industry, Curtiss-Wright has stepped in, aiding Reuland in designing direct replacements for these obsolete motors under our safety related programs, making safety related motors and equipment once more accessible to the nuclear industry. In addition to Curtiss-Wright’s safety-related programs, Reuland operates two manufacturing facilities as well as its own foundry and pattern shop, and has developed 1000s of designs to meet the demands of customer-specific requirements. 


    • AC Motors
    • Fractional HP through 400 Frame
    • Low Voltage (up to 600 volts)
    • Three Phase
    • Safety-related and Non-safety related
    • Replacement Motors, not Refurbishments


    • Standard Motors
    • Wound Rotor Motors
    • U-frame Motors
    • High-speed Motors
    • Multi-speed Motors
    • Fluid Cooled Motors
    • Partial Motors
    • Synchronous Motors
    • Gearmotors
    • Brake Motors


    • HVAC
    • Pumps, Mixers, Blowers
    • Motor-operated Valves
    • OEM Process Skids
    • Conversion, DC to AC
    • Crane and Hoist
    • Elevator