The sections below feature portions of the project scope of Green Tiger One and can be expanded for more detail. A more detailed schedule will be available on the Construction Schedule page.
We will be retrofitting/replacing the existing light fixtures with LEDs. During the construction phase, we will need to lockout/tagout the breaker that serves the lights in every room on campus and perform the upgrade. Anything that is served by the breaker that serves the light fixtures will face a temporary power outage. Most of the work will be performed during second shift hours on Monday-Friday between 3pm and 11pm.
We will be replacing the existing tank-type toilets, flushometer, aerators, select shower heads, and kitchen pre-rinse nozzles with water-efficient fixtures. During the construction phase, there will be a localized outage of the restrooms where replacements will be carried out.
We will be removing existing failed steam traps, associated piping and insulation throughout the campus for replacement. During the construction phase, we will need to shut down the individual steam systems and drain the condensate to install the insulation covers. The duration of individual outages can last from a few hours to a couple of days.
We will be installing custom-fabricated, removable insulation covers on steam/hot water distribution system valves and fittings. During the construction phase, we will need to shut down the individual steam systems and drain the condensate to install the insulation covers. The duration of individual outages can last from a few hours to a couple of days.
We will be removing and replacing the failing condensate receiver units, associated pumps, check valves & float switches for a few buildings across the campus. During the construction phase, we will need to shut down the individual steam systems and drain the condensate to install the replacements. The duration of individual outages can last from a few hours to a couple of days.
We will be installing interior duct sealant to reduce the duct leakage in the supply ducts of the air handlers. Duct leakage causes fans to work more to move more air to compensate for the leaks. This causes excess fan energy and motor heat. During the construction phase, we will need to shut down the respective air handlers to install the duct sealant. Once the sealant is cured the AHUs will be brought back online. The duration of individual AHU outages can last from a few hours to a few days depending on the length of the duct section to be sealed. Most of the work will be performed during second shift hours on Monday-Friday between 3pm and 11pm.
We will be implementing HVAC control improvements throughout campus. The assigned budget will be used to address the highest priority targets within each of the buildings in scope. This means the items with the largest energy dollar savings per unit cost will be prioritized. Not all the items may be addressed, however, as the entire budgeted amount will be expended. During the construction phase, we might need to shut down the respective air handlers to perform the controls upgrade. The duration of individual AHU outages can last from a few hours to a day. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be removing and replacing the existing failing weather stripping, seals, caulking material, and door sweeps across the campus. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing new Antec exhaust air valves in the auditorium prep. rooms and will also be installing a supply air valve to the auditorium's VAV box to provide sufficient makeup air. During the construction phase, the exhaust fan and the air handler serving the auditorium and the prep. rooms will need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few hours to a few days. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing 29 new Antec exhaust and supply air valves among other HVAC upgrades. During the construction phase, the exhaust fan and the air handler serving each lab space would need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few hours to a few days. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing 115 new Antec exhaust and supply air valves among other HVAC upgrades. During the construction phase, the exhaust fan and the air handler serving each lab space would need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few days to a few weeks. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing 5 new Antec exhaust and supply air valves, 41 exhaust snorkel isolation dampers, energy recovery coil replacement, replace the existing reheat boxes serving perimeter office areas with new DDC VAV boxes with reheat, and installing controls necessary to convert the air system from constant to VAV etc among other HVAC upgrades. During the construction phase, the exhaust fan and the air handler serving each lab space would need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few hours to a few days. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing 125 new Antec exhaust and supply air valves among other HVAC upgrades. During the construction phase, the exhaust fan and the air handler serving each lab space would need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few days to a few weeks. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing 57 new Antec exhaust and supply air valves, 3 energy recovery coils among other HVAC upgrades. During the construction phase, the exhaust fan and the air handler serving each lab space would need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few days to a few weeks. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing 4 new Antec exhaust and supply air valves among other HVAC upgrades. During the construction phase, the exhaust fan and the air handler serving each lab space would need to be shut down. The duration of individual AHU/exhaust fan outages can last from a few days to a few weeks. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be replacing AHU 6 with a new VAV AHU with 4 VAV reheat boxes. During the construction phase, the existing air handler will be demoed with its auxiliaries and replaced with the new air handler. There wouldn't be any air conditioning for the section served by AHU-6 for the duration of the construction. The duration of outage can last from a few weeks to possibly 2 months. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be removing existing fan coil units, carrier moduline, and anemostat variable volume diffusers serving the admin area. These will be replaced with new VAV boxes with terminal hot water reheat and new ceiling diffusers. During the construction phase, the existing air handler would need to be shut down to accommodate the replacement. There will not be any air conditioning in the area served by this AHU for the duration of the construction. The duration of outage can last from a few weeks to possibly 2 months. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be replacing the old AHUs serving the warehouse area with new single-zone fan coil units designed for the current space use, replace the oversized water-cooled chiller with an air-cooled chiller and replace the steam boiler(s) with energy-efficient heating hot water boilers (eliminating the steam system). Include in the design any modifications needed to make the chilled water and hot water systems variable flow. During the construction phase, there will be air conditioning outage throughout the building. The duration of outage can last from a few weeks to possibly 2 months. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be replacing the old AHUs 2, 3 with new VAV AHUs. During the construction phase, there will be air conditioning outage for the areas served by AHUs 2 & 3. The duration of outage can last from a few weeks to possibly a 2 months. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
Through this scope of work, we will be upgrading the HVAC system serving the admin area with new VAV terminal units with new hot water reheat control valves reusing the existing ductwork. There will be minor adjustments made to the diffuser layout for zone control. New controls will be provided for the VAV boxes and reheat control valves. We will also be shelling the existing back portion and will provide limited heating and air conditioning sufficient to maintain space temperatures. During the construction phase, there will be an air conditioning outage for the admin area. The duration of outage can last from a few weeks to maybe a couple of months. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be replacing the existing chillers with new York mag bearing chillers. A new air-cooled chiller will be installed (in series) to serve the existing clean room AHUs. The chilled water plant will be converted from a constant flow primary / variable flow secondary to a variable primary flow arrangement. The condenser water pumping will be converted to a variable flow system. Given the size and simplicity of the plant, JCI's central plant optimization CPO10 will be implemented for central plant optimization. We will also be performing repairs to the existing electric boiler and programming it to use during off-peak electric periods. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.
We will be installing a demand-based kitchen hood exhaust system to reduce HVAC energy while ensuring adequate kitchen hood exhaust. The new hood control system will be installed to control kitchen hood exhaust fans and associated makeup air units. The recommended Intelli-Hood controls include a system controller, hood controller for each hood, temperature and optic sensors for each hood, touchpad(s), and VFDs for each fan motor. Temperature sensors mounted in hoods detect the cooking appliances being turned on and operate the fans at a min speed of 30%-temperature sensors mounted in exhaust ducts modulate the fan speeds above the minimum based on actual heat load. optic sensors with air-purge units mounted on opposite ends of hoods increase fan speed to 100% upon the detection of smoke or vapors (effluent). When the sensors no longer detect effluent, the fan speeds slow backdown and modulate according to the detected heat load. Most of the work will be performed during regular business hours on Monday-Friday between 8am and 5pm.