Contractor shall provide regular maintenance services for all the System Equipment listed on the Master Equipment List. Maintenance services shall be executed as described below. 1. Maintenance Visit Check in a. Make arrangements with Facilities a week prior to service inspection date. b. During inspection report to Facilities any issues that need to be addressed immediately. 2. Execution of Maintenance Services a. All Refrigeration Cycles Maintenance Requirements: i. Visually check for refrigerant leaks, pipe chafing, and oil level on units so equipped. ii. Check superheat and verify proper condensing temperature. iii. Check proper refrigerant operating pressures and/or temperature(s) and record readings on Service Inspection Reports. Annual Maintenance Requirements: i. Test for refrigerant leaks and check for pipe chafing; Set proper superheat. ii. Test and calibrate head pressure control. iii. Check refrigeration charge. iv. Check crank case heater wattage. v. Check and calibrate low pressure cut-in and cut-out. vi. Check and calibrate high pressure cut-in and cut-out. vii. Perform pump down and hold test for compressor. viii. Simulate oil failure and test oil safety control. ix. Complete Service Inspection Report b. Pumps Tri-annual and Semi-annual Requirements: i. Inspect packing, if present. ii. Inspect pump system for leaks in piping, flange connections, etc. iii. Visually inspect coupling. iv. Complete Service Inspection Report Annual Maintenance Requirements: i. Inspect mounting points and tighten as needed. ii. Inspect water level in pump system expansion tank & record reading. iii. Record suction and discharge pressure. iv. Measure operating voltage. v. Perform vibration analysis and provide report. vi. Test accuracy of all pressure gauges. vii. Clean wye strainers. viii. Cycle all valves; check for smooth operation. ix. Complete Service Inspection Report c. Exhaust Fans Tri-annual and Semi-annual Requirements: i. Check motor for excessive heat or vibration hazards.
