Ellis & Watts designs, qualifies, manufactures, and tests custom air handlers (AHUs) and fan coils to provide conditioned air for mission-critical comfort, environmental, and process environments where meeting design temperature, humidity, and/or sound requirements are crucial.
Ellis & Watts can provide AHUs and Fan Coils with the following features and capabilities - CLICK TO SEE FULL LIST
- varying housing thicknesses and insulation types
- variety of fan types, configurations, and sizes
- wide range of supply air temperatures
- analog, relay-based controls to address qualification, cyber security, or EMI/RFI concerns or digital control systems
Specific capabilities for AHUs and Fan Coils include - CLICK TO SEE FULL LIST
- flexible dimensions and component selection to optimize performance, efficiency, ease of service, and life-cycle cost
- operation in extreme ambient temperatures
- up to 60 inches w.g. static pressure
- wide choice of materials of construction available to optimize structural integrity, corrosion resistance, weight, and cost
- stringent air leakage requirements
- seismic qualification per IEEE 344
- environmental qualification per IEEE 323
- various power supply, piping and control options
- designs for hazardous duty applications (explosion proof)
- EMI/RFI suppression and verifications testing
- portable or mobile designs, including shock and vibration isolation
- factory performance testing at full and part-load conditions to document compliance and assure proper operation
- self-contained packaged or split-system designs
- modular construction to address on-site transportation, rigging, and installation constraints
Ellis & Watts understands that some projects require strict code compliance and has the demonstrated ability to conform to the following codes, among others - CLICK TO SEE FULL LIST
- ASME NQA-1
- 10CFR50 Appendix B
- Heat Exchangers to ASME Section VIII or ASME Section III
- Coils (Refrigerant & Electric) to ASME AG-1 Section CA
- Fans to ASME AG-1 Section BA
- Motors to ASME AG-1, IEEE 323, IEEE 334, IEEE 344, and NEMA MG-1
- Motor wiring to IEEE 383
- Motor insulation to IEEE 117
- Filters to ASME AG-1 Section FB & FC
- Filter Mounting Frames to ASME AG-1 Section FG
- Dampers to ASME AG-1 Section DA
- UL 555 for Smoke and Fire Dampers
- Damper Actuators to IEEE 382
- Housing to ASME AG-1 Section HA
- Instruments to ASME AG-1 Section IA
- Compliance to IEEE 7-4.3.2 Standard Criteria for Digital Computers in Safety Systems of Nuclear Power Generating Stations
- Compliance to IEEE 603 Standard Criteria for Safety Systems for Nuclear Power Generating Systems
- Compliance to IEEE 1012 Standard for Software Verification and Validation
Past projects in which Ellis & Watts successfully met stringent air handling system compliance requirements include - CLICK TO SEE FULL LIST
- V.C. Summer NPP – USA
- Vogtle NPP – USA
- Cernavoda NPP – Romania
- MOX Fuel Fabrication Facility – USA
- Palisades NPP – USA
- US Army
