HEAF Fume Hood Exhaust System Modernization
HEAF Fume Hood Exhaust System Modernization
Client: Lawrence Livermore National Laboratory (LLNL)
Location: Livermore, CA
LEI was contracted by Bath Group to provide Electrical Engineering services for the HEAF Fume Hood Exhaust System Modernization at Lawrence Livermore National Laboratory (LLNL). The facility was designed and constructed in several phases starting around 1990.
The Electrical design provided 480V branch circuits from existing Motor Control Centers in the Mechanical Penthouse to serve (1) temporary air handling unit, (1) replacement air handling unit, (1) additive alternate replacement air handling unit, and (3) new exhaust fans. Safety switches, VFDs with Bypass contactors, and duct smoke detectors (where required) were provided for new HVAC Equipment. Construction drawings were divided into separate phases to keep the HVAC system in service during construction and to allow for balancing of the new system configuration. In individual laboratory areas, 120V branch circuits were provided from existing panelboards to power local controllers, damper actuators, and sensors. Conduit pathways were provided from the DDC controller in the Mechanical Penthouse to each local controller in the laboratory areas. Title II Services included Construction Drawings and Specifications per LLNL Engineering Standards. LEI will provide Title III Construction Administration Services.