Specifications include, but are not limited to: The replacement of (4) existing high efficiency floor mounted computer room air conditioning (CRAC) units, there are two additional CRAC units in the APC room, two in the operations room, and two smaller systems in the mail room. The existing CRAC units are antiquated and are at the end of their useful lifecycle. The intent is to use the same approximate locations as the existing units. Each unit needs to be removed allowing remaining existing units to remain on-line while the new unit is being replaced; when the first new unit is online and fully operational, subsequent units can be replaced sequentially. During all replacements or anytime a cooling unit has been taken out of service, a “Movein-Cool” portable unit will be set up to cool the “zones” in the server room being affected by the replacement. The indoor units/components will be placed in or near the existing removed locations and the new unit installation shall follow the manufacturers’ recommended installation instructions. The outdoor condensing components and new refrigeration pumps will be placed in a new laydown area on the east side of the building next to the shed in the outdoor employee break area. Modify the existing ductwork, specifically the return ducts, as necessary to allow the installation of the new CRAC units in or near the locations of the removed units. The existing electrical and HVAC piping will be replaced as necessary for new equipment.
