Attachment J-1502000-14 Building Control Systems.xlsx

This is a Building Control Systems Inventory spreadsheet documenting Direct Digital Control (DDC) systems across multiple Naval Research Laboratory (NRL) facilities. The inventory lists 47 DDC main panel units distributed across various NRL buildings (NRL-1, NRL-12, NRL-28, NRL-30, NRL-32, NRL-42, NRL-43, NRL-43A, NRL-60, NRL-66, NRL-71, NRL-72, NRL-97, NRL-101, NRL-207, NRL-271, NRL-970, NRL-A49, and NRL-A69) with installation dates ranging from 1971 to 2018. Each DDC system is classified under the HVAC subsystem category (D30 - HVAC, D3060 - Controls & Instrumentation, D3060905 - Direct Digital Control System) and is designated as an EA (Each) unit of measure.

The systems are located throughout the facilities in buildingwide configurations and specific mechanical rooms, including locations such as penthouses, attics, and designated equipment rooms. Notable installations include NRL-28 with 143 units installed in 2000 (the largest quantity in the inventory), while most other locations contain single DDC units. The systems' installation dates reflect a range of ages, with some units dating back to 1993-1996 and others installed as recently as 2018, indicating varying maintenance and potential upgrade requirements across the NRL facility portfolio. This inventory document serves as a baseline asset management tool for the facility support services contract spanning February 2028 through February 2036.