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Attachment 1 <br /> EXHIBIT A <br /> HVAC Maintenance and Emergency Repair Services <br /> Project No. OSD-20-404 <br /> Preventative Maintenance Services <br /> Task Frequency Notes <br /> Change all filters Quarterly High 80 2" or 1" where necessary. <br /> Grease and oil Quarterly Service all rotating parts that require lube per manufacturer's <br /> recommendations. <br /> Cycle all functions Quarterly Test each function of the unit being serviced. <br /> Inspect all disconnects Quarterly Inspect all disconnects for unusual wear or arcing. <br /> Inspect all roof Inspect all roof penetrations for cracking or leaking seals, <br /> penetrations Quarterly degrading or failing insulation or other items that can cause a <br /> leak. <br /> Service all exhaust fans <br /> and intake fans Quarterly <br /> Replace belts Annual Replace all belts with manufactures recommended series and <br /> size. <br /> Thoroughly clean indoor and outdoor coils. Any water used is <br /> Clean evaporation and <br /> Annual subject to environmental controls and shall not be create an <br /> condenser coils <br /> Illicit Discharge. <br /> Clean and flush all All condensate lines flushed and cleans to ensure free flow of <br /> Annual <br /> condensate lines condensate. <br /> Clean burner tubes/rack Annual Before heating season all burner tubes and racks cleaned to <br /> ensure proper combustion. <br />