Specifications include, but are not limited to: This ECM includes retro-commissioning and installation of additional equipment, sensors and automated building controls that willl optimize heating and cooling and the conditioning of outside air in the affected buildings to reduce energy consumption. Strategies that will be implemented include: 1) Retro-commissioning of dampers, actuators, temperature and pressure sensors, and valves. 2) Retro-commissioning of Variable Frequency Drives (VFDs) on RTU supply and return fan motors to adjust the volume of air provided to the space to match need. 3) Installation of local zone occupancy sensors to eliminate HVAC during unoccupied conditions throughout the day. 4) Demand-controlled ventilation controls that utilize additional CO2 sensors and recalibrate existing CO2 sensors to determine the optimum amount of outdoor air to meet changing occupancy needs. 5) Reduction of minimum VAV air volume when neither heating nor cooling are needed in spaces. 6) Install Electronically-Commutated Motors (ECMs) in small exhaust fans to provide variable volume control and reduced fan energy use. 7) Installing new Erlab ventless filtration hoods and Halo ceiling units in the Materials and Reseach Laboratory to replace selected sash fume hoods and canopy hoods that are suitable for retrofit. Erlab hoods and Halo units filter and absorb contaminants and fumes, and recirculate the cleaned air back into the laboratory without requiring exhaust of the air to the outside or makeup air from the outside. 8) Installing VFDs on supply exhaust fans to reduce fan energy while modulating supply and exhaust flow based on static pressure controls. 9) Installing improved controls and automatic dampers to permit shutting down lab hoods when they are not being actively used. 10) Re-commissioning and/or upgrading heat pump systems to reduce electric energy used by the heat pumps, medium temperature loop pumps, and cooling tower, as well as natural gas consumption by the boilers. Buildings Emergency Operations Center Materials & Research, DOT Mechanical Services, DOT Pillsbury Street - Old Labor Walker Building
