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License Numbers: VA 2701001733 • WV 001545 • NC L.34582 & U.33082 <br />Scope of Work <br /> Condensing Boiler <br /> Preventive Maintenance Program <br /> <br /> Annual Maintenance <br /> A. Secure boiler, incorporating all aspects of Lock-out Tag-out procedures. <br /> B. Address reported problems, if any. <br /> C. Inspect interior; clean and vacuum if necessary. <br /> D. Clean condensate trap and fill with fresh water. <br /> E. Check for leaks (water, gas, flue and condensate). <br /> F. Verify flue in good condition and sealed tight. <br /> G. Check system water pressure/ system piping/expansion tank. <br /> H. Check fill water meter. <br /> I. Check control settings. <br /> J. Check the ignition and both flame sense electrodes. <br /> K. Check wiring and connections. <br /> L. Perform start-up checkout and performance verification. <br /> M. Flame inspection. <br /> N. Check flame signals. <br /> O. Clean the heat exchanger. <br />Page 3 of 12 <br />Docusign Envelope ID: FE461C71-1EDD-473B-A187-2C2D6DBD735B