Specifications include, but are not limited to: A. RTAA AIR COOLED HELICAL SCREW CHILLERS (QUARTERLY INSPECTION) 1. Report in with the Customer Representative. 2. Record and report abnormal conditions, measurements taken, etc. 3. Review customer logs with the customer for operational problems and trends. 4. Check general operation of the unit. 5. Inspect for leaks and report results. Test vent piping of all relief valves for presence of refrigerant to detect improperly sealed relief valves. Replace any leaking valves. 6. Check condenser coils, clean coils with non-acid cleaner, follow manufacturer’s instructions for application. 7. Log operating temperatures, pressures, voltages, and amperage. 8. Check operation of the control circuit and report deficiencies. 9. Check operation of motor(s) and starter(s) and report deficiencies. 10.Analyze recorded data. Compare data to original design conditions. 11.Provide detailed written report of all recorded/logged readings noting any deficiencies. 12.Review operating procedures with County personnel B. RTAA AIR COOLED HELICAL SCREW CHILLERS (ANNUAL INSPECTION) 1. Report in with the Customer Representative. 2. Record and report abnormal conditions, measurements taken, etc. 3. Review customer logs with the customer for operational problems and trends. 4. Includes all quarterly services listed above, plus: General Assembly 5. Inspect the leaks and report results. 6. Calculate refrigerant loss rate and report to County. 7. Repair minor leaks as required (e.g. valve packing, flare nuts). 8. Visually inspect condenser coils for cleanliness. Clean coils per quarterly service. 9. Inspect fan blades. 10.Lubricate condenser fan bearings. Controls and Safeties 11.Inspect control panel for cleanliness. 12.Inspect wiring and connections for tightness and signs of overheating and discoloration and report deficiencies. 13.Verify working condition of all indicator/alarm lights, if applicable 14.Test the low water temperature control device. Calibrate and record setting. 15.Test the low evaporator pressure safety device. Calibrate and record setting. 16.Test the low oil pressure safety device. Calibrate and record setting. 17.Check programmed parameters to the unit interface control panel, if applicable 18.Check and verify operation of compressor unloaders and electronic expansion valve. Lubricate System 19.Check oil level in the compressor 20.Test oil for acid content and discoloration. Make recommendations to the County Representative based on results of test. 21.Replace lube oil filter 22.Verify operation of crankcase oil heater. Measure amperage and compare to heater rating. Refrigerant 23.Pull refrigerant sample for spectrographic analysis. Check for moisture, contaminants, and etc. utilizing approved containers. 24.Replace refrigerant drier core.