Z2Da--Replace Auxiliary Chiller

solicitation

Closed

Scope of Work Replace Auxiliary Chiller at Building 3 Project Number: 565-24-113 Scope of Work Location: 2300 Ramsey Street, Fayetteville, NC 28601, Located outside of Building 3 Scope: Remove and replace the existing 120-ton auxiliary chiller at Building 3. The purpose of this chiller is to provide chilled water redundancy to Building 3. The new auxiliary chiller shall be the same size/capacity as the existing chiller and shall be fully functional. The contractor shall replace and install all required piping, valves, supports, and controls. The new auxiliary chiller shall be integrated with the existing Building Automation System (BAS). Chiller controller shall be BACNET compliant, and all data points should be pulled through the BACNET connection. The contractor shall install minimum (hard wired) data points to include but not limited to (1) Start/Stop, (2) Status, and (3) Alarm (hard wired). All low voltage control wirings must be installed in blue control conduit. All graphics/trends and digital alarming associated with the new chiller must be updated on the Tridium Direct Digital Control (DDC) Supervisor located in Room 2 in Building no. 35. The contractor shall replace two (2) 250 gpm pumps located in an adjacent mechanical room; shown on Sheet M103 as B-20A. Contractor may reuse the existing concrete pads. Replace/reroute piping, if required, to install the new pumps. Pumps shall be programmed into the BAS with the same data points as the chiller. *Note that the existing auxiliary chiller has two electrical circuits. Contractors are strongly encouraged to attend the pre-bid site visit. The date is to be determined. Requirements: All work shall be performed in full accordance with applicable local and Federal regulations. All equipment and installation shall conform to the VA master specifications, recommendations of the National Fire Protection Association (NFPA), and Underwriters Laboratories, Inc. The contractor shall use good safety practices during demolition and installation. The contractor shall conduct a pre-installation site visit to verify field conditions. The contractor shall attend a pre-construction meeting with VA stakeholders The contractor shall perform testing and demonstrate proper operations of new chiller with VA maintenance. The contractor shall submit the following to the VA upon completion: Operation & Maintenance manuals Warranty documentation Storage: No storage of any material will be allowed on VA property. Period of Performance: To be completed within 6 months of NTP. This should allow adequate time for product lead times. Hours of Operation: Normal working hours: 0800-1700, M-F. Evening and weekend work may be approved by COR. Utility and System or Service Outages: No utility services such as water, gas, steam sewers or electricity, parking, or fire protection systems and communications systems may be interrupted without prior approval of COR. Electrical work shall be accomplished with all affected circuits or equipment de-energized in accordance with VA Lock-out Tag-out requirements. The contractor shall submit a request to interrupt any such services to COR, in writing, 28 days in advance of the proposed interruption. Attachments: Attachment 1-M103 AHU 30 Bldg. 3 Mech Room 20 Chilled Water 2014 drawing from a 2014 construction project Photo 1-Existing Airstack Chiller at Bldg. 3 Photo 2-Data Plate west Airstack existing chiller data plate Specs AuxChillBldg3 END SCOPE OF WORK

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