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License Numbers: VA 2701001733 • WV 001545 • NC L.34582 & U.33082 <br /> <br /> <br /> <br />Hot Water Boilers <br />Preventive Maintenance Program <br /> <br /> 1. ANNUAL MAINTENANCE – Once a year a thorough preventive maintenance should be <br />performed to include the following procedures. <br /> <br /> A. Secure boiler, incorporating all aspects of lock-out, tag-out procedures. <br /> B. Open fireside of boiler and inspect all refractory material in front and rear headers, inspect combustion <br />chamber and breaching. <br /> C. Inspect fire tubes and tube sheet, confirm no water leakage between tubes and tube sheet. <br /> D. Clean fire inspection glass, reseal fireside, replacing gaskets where required. <br /> E. Clean combustion air fan wheel and air dampers of burner assembly. <br /> F. Check, calibrate boiler temperature/pressure gauge. <br /> G. Clean and gap burner and pilot electrodes. Replace if required. <br /> H. Clean flame safeguard scanner eye. <br /> I. Clean and lubricate burner linkage, tighten all linkage screws. <br /> J. Lubricate burner motor bearings per manufacturers recommendations. <br /> K. Clean program timer contacts, and inspect all control wiring and terminals, tighten as required. <br />Page 5 of 12 <br />Docusign Envelope ID: FE461C71-1EDD-473B-A187-2C2D6DBD735B