Variable Frequency Drive Maintenance and Services

The City is seeking firms to provide routine preventive maintenance and repair services for approximately 50 Variable Frequency Drives (VFDs), ranging from 208 volts to 460 volts, located at various City facilities, including the Airport.  Brand names include ABB, Danfoss, Mitsubishi, Schneider Electric, and Yaskawa.  VFDs will be checked as needed for a full service of the VFD (cleaning, replacement parts, etc.), and involve inspection, testing, and reporting on each VFD’s condition.  The City uses VFDs in various applications involving pumps and fans for HVAC systems to achieve energy savings.

Add Portable Generator Provisions

This solicitation will be to provide a connection point for a portable generator hookup at our Fleet Maintenance Facility. The desired emergency loads will have to be divided out into an emergency panel and the emergency panel will be supplied by a manual transfer switch. The Airport would like the generator to provide standby power for the fire pump, front office computer loads, shop air compressor, trapeze power throughout the shop, all lighting, tire rack balancer and mounter, oil lube pumps, etc.  The term for this contract is four months.

Zone 4 Field Operations Center (Construction Manager-at-Risk)

The proposed Zone 4 project will include a 36,000 sf operations center, approximately 20,000 sf of pre-engineered metal structures to house open storage, crew storage, raw materials bunkers, two (2) combination trucks, fabrication shop, and two (2) fleet maintenance bays.  The project will also include demolition of existing facilities in a phased approach so as to minimally impact or impede current operations on the site. The project may also include roadway improvements to West Tyvola Road to increase accessibility to the site.

Rodgers Builders was selected as the Construction Manager at Risk (CMAR)  for this project.

 

Catawba Pump Station Rehabilitation Project

The Project site is the Catawba Raw Water Pump Station located on Mountain Island Lake, owned & operated by Charlotte Water. The site address is 12548 Pump Station Rd, Charlotte, NC 28216. The work under this project will be primarily in Cells #2 & 3. The electrical work consists of changing the Cell #3 voltage from 2300V to 4160V, including new switchgear, synchronous motor, conduit, cable, etc. as well as re-winding an existing electric pump motor. The civil/mechanical work consists of rebuilding/replacing screens, rehabbing cone valves, and installing a new flow meter vault. The structural work consists of new electrical vault, drywall electrical room, masonry, doors, windows, louvers, and fans. This project also includes upgrades to the fire alarm system for the entire Catawba Pump Station facility.