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<br />The hot water heating plant provides hot water to the building. It consist of two gas fired Aerco BMK <br />model condensing boilers. The plant has two constant volume primary circulation pumps and two variable <br />flow secondary pumps, controlled by VFD, that deliver hot water to the entire building. <br />Currently the terminal is served by three variable volume single zone Air Handling Units and 68 4-pipe Fan <br />Coil Units with heating and cooling coils. AHU-1 is serving the ticketing area and main lobby, AHU-2 is <br />serving main lobby and the checkpoint area, and AHU-3 is serving the bag claim area. The rest of the <br />terminal is served by 4-pipe fan coil units. Outside air is delivered to the air handling units and to 75 <br />percent of the fan coil units by 14 dedicated outside air fans in order to meet the required outside air for <br />the spaces. Each AHU and fan coil unit is controlled by an individual thermostat. All HVAC equipment are <br />controlled by the BAS. <br /> <br />3.5 LIGHTING SYSTEMS <br />The terminal lighting types and lighting levels are listed in Table 4. Most lighting levels area measured <br />meet IES standards. There is no overall building lighting control system for automatically shutting down <br />lights based on time of day or other controls. There are several areas with large windows which provide an <br />opportunity for daylight harvesting. There are several areas under lit due to fixtures with poor or no <br />optics. Many areas do not take advantage of ceiling reflectance to increase the light levels. Also dull and <br />non-reflective finishes reduce the lighting effectiveness. Some lighting only lighting structure not lighting <br />occupied spaces. <br /> <br />Some occupancy sensors were found in the terminal. Conference room, and several other area ceiling <br />lights, were found to have incandescent bulbs and could be replaced with LEDs. <br /> <br />Apron lighting is in the form of HPS and is less efficient than LED and has a delay of several minutes to <br />reach full light output when switched on. These could be replaced with LED which has the added <br />advantage of instantaneously providing full light output. <br /> <br /> ASHRAE LEVEL 1 ENERGY AUDIT TERMINAL 15 <br /> <br />