N4008523B0044 Dwgs.pdf

This is a comprehensive set of architectural and mechanical construction drawings for the Mechanical Repairs Building TT113 Child Development Center (CDC) project at MCB Camp Lejeune, North Carolina, contract number N40085-23-B-0044. The project involves mechanical system replacement and upgrades including HVAC, plumbing, fire protection, and electrical systems for a child care facility with approximately 30,000 square feet of floor space. The scope includes removal of existing VRF and energy recovery ventilation systems and installation of new dedicated outside air systems (DOAS), fan coil units, ductless split systems, unit heaters, and associated piping and controls. Key mechanical components specified include three DOAS units (ranging from 3,195 to 3,915 CFM), 34 fan coil units for zone heating and cooling, 3 condensing boilers for hot water generation, an air-cooled chiller for chilled water production, and various exhaust fans and equipment. The construction documents contain 119 sheets including structural, architectural, mechanical, plumbing, electrical, and fire protection plans with detailed specifications for materials, equipment scheduling, ductwork design, piping systems, and controls sequences.

Critical operational requirements mandate that construction activities cannot commence until six months after award, active construction must be limited to 18 months, and all work must be completed within 24 months maximum. The project includes endangered species considerations (Northern Long-Eared Bat and Tricolored Bat habitat in the building attic) requiring USFWS coordination before construction. Design standards incorporate 2021 IBC, UFC standards, NFPA codes for fire protection and sprinkler systems, and include ATFP (Anti-Terrorism Force Protection) bracing for suspended equipment. The mechanical system is designed for simultaneous heating and cooling capability with thermostatic controls maintaining 72-75°F during occupied hours. Specialized mechanical building construction (Building 109F) measuring 470 square feet provides housing for central plant equipment including boilers, chiller, pumps, and expansion tanks, with standing seam metal roof, CMU walls, and dedicated mechanical yard access.