Specifications include, but are not limited to: The Contractor shall provide, on a Monthly basis, all labor and materiel for preventative maintenance service; 3.1. Chemical feed and bleed equipment installation and maintenance as described herein 3.2. Piping, wiring, Control Equipment parts, and labor necessary to complete installation and or repair of chemical feed and bleed equipment on site if required. 3.3. Training for operating personnel on operation and control parameters. 3.4. Field service and consultation which will include monthly service visits. These shall include monthly computer-generated reports with test results, recommended adjustments, and parameters to maintain. 3.5. Independent laboratory testing of samples shall be provided as needed. Each facility shall be serviced and inspected twelve (12) months per year. Buildings with closed-loop systems shall have the loop serviced and inspected each month. Open towers and fluid coolers sump basin, coil and/or plastic media shall be visually inspected monthly and reported of findings. Vendor shall provide water chemistry parameters for the purpose of future comparison. The following is a list of equipment to be maintained free of scale, build up and in good operational condition. 4.2.1. Evapco cooling tower - model AT8-187, 275 ton unit. 4.2.2. Evapco cooling tower - model AT8-187, 275 ton unit. 4.2.3. Alfa-Laval plate and frame heat exchanger - serial number 30101-65041 4.2.4. York Centrifugal Chiller, 275 ton unit 4.2.5. Carrier Centrifugal Chiller, 275 ton unit, model 38AE054400 4.2.6. Heat exchanger size 2”, model 701TP 4.2.7. Heat exchanger size 2 ½” model 711TP 4.2.8. All associated piping.