Packaged Air Conditioners, Environmental Control Units (ECUs), & Local Air Coolers
Ellis & Watts designs, qualifies, manufactures, and tests custom air conditioners (A/Cs), environmental control units (ECUs), and local air coolers (LACs) to provide air temperature control for mission-critical comfort, environmental, and process environments.
The equipment can be designed to meet specific project requirements including - CLICK TO SEE FULL LIST
- air-cooled or water-cooled condensing
- extreme ambient temperature conditions
- wide ranges of leaving air temperatures
- analog, relay-based controls to address qualification, cyber security, or EMI/RFI concerns or digital control systems
Special equipment design capabilities include - CLICK TO SEE FULL LIST
- a variety of compressor technologies to optimize efficiency, reliability, and life-cycle cost objectives
- various materials of construction to meet structural integrity, corrosion resistance, weight, and cost requirements
- stringent air pressure and/or leakage capabilities
- seismically qualified per IEEE 344
- environmentally qualified per IEEE 323
- various power supply and controls options
- designs for hazardous duty applications (explosion proof)
- EMI/RFI supression and verification 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
- Mil-Std-461G for environmental
- Mil-Std-461G for EMI/RFI
- Heat Exchangers to ASME Section VIII or ASME Section III
- Compressors to ASME AG-1 Section RA
- 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 conditioning unit compliance requirements include - CLICK TO SEE FULL LIST
- Asco NPP – Spain
- Sizewell NPP – United Kingdom
- Almaraz NPP – Spain
- Lungmen NPP – Taiwan
- Krsko NPP – Solvenia
- NASA Missile Environment Control
- US Corps of Engineers
- US Army, Navy, and Air Force
- NASA Payload Transporter
- Boeing AW-SHORAD Weapons Program
- MOX Fuel Fabrication Facility – USA
