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REV: 07-02-2021 RL <br />EXHIBIT “A” <br />SCOPE OF SERVICES AND FEE <br />1.Scope of Work/Tasks <br />Contractor will perform scheduled annual preventive maintenance, full testing, and <br />repair/replacement services on boiler equipment listed below in the City facilities listed below <br />in accordance with the services described below within three years of the Effective Date. <br />Facility Address Equipment <br />Manufacturer <br />Model Serial <br />Number <br />Police Facility 1301 Maple Rite 200 23165 <br />City Hall 1017 Middlefield Laars PH1200EN C97A00789 <br />Main Library 1044 Middlefield Laars PNCHl 750NACL2CXN C09216819 <br />Red Morton Community <br />Center <br />1120 Roosevelt Camus DFNH 0751 MGI 07827125 <br />Public Works Services 1400 Broadway Rite 10555 24781 <br />Redwood Shores Library 399 Marine Pkwy Camus DFNH 1102 110705969 <br />•Open, clean and vacuum fireside of boiler with power equipment, clean furnace, and <br />wire brush tube sheet (when applicable/accessible). <br />•Open and clean low water cut-off assemblies. Flush and reseal waterside (when <br />applicable/accessible). <br />•Vacuum breeching in immediate vicinity of boiler, where applicable. <br />•Inspect refractory, point up and wash coat all refractory (when applicable/accessible). <br />•Seal and close fireside of boiler. <br />•Install new gaskets. <br />•Remove and inspect main burner (if applicable/accessible) and gas pilot assembly, <br />and adjust ignition electrode, if required. <br />•Reinstall main burner (if applicable) and gas pilot assembly in accordance with <br />recommended specification and tolerance. <br />•Check flame failure safeguard control for pilot and main flame ignition. <br />•Check operation of blower motor and control circuitry. <br />•Check operation and adjust all linkages, belts and pulleys in accordance with factory <br />specifications. <br />•Check operation of gas valves and vent valves, including all gas train components. <br />•Check operation of all boiler-operating controls; limit pressuretrols and running <br />interlocks. <br />•Check operation of low water controls on hot water closed systems. Draw down water <br />column and check low water controls and/or feed water pump control on steam <br />systems. <br />•Check burner and check pilot and main flame ignition system. <br />•Check and calibrate each boiler/burner for optimum air/fuel mixture for natural gas, <br />and fine-tune and adjust firing to its maximum efficiency level throughout entire <br />modulation range. Analyze flue gas and monitor temperature, O2, CO2, CO and <br />excess air. <br />•Monitor complete combustion and efficiency testing and record at firing rates or 20%, <br />50%, 75% & 100% of boiler/burner capacity when applicable. Calculate and record <br />combustion efficiency at each position. <br />ATTY/AGR.2021.158/R.F. MacDonald Co. (Boiler Maintenance and Repair Services) (Page 10 of 11)