Provide air conditioning (HVAC) maintenance services coverage, which encompasses all parts, labor, material, mechanical components, drive motors, pumps, fans, compressors, variable frequency drives, electronic components, ceiling vents and grilles, condensate drain lines, pipe supports and hangers, belts, complete hot water boiler systems, dryers, strainers, electrical panels, condensing units, air handlers, duct repairs, oil, refrigerant (adding or replenishing), unit starters, controls, evaporators, control panels, system temperature controls, gauges, zone controls, thermostats, air modulation boxes (VAV boxes), pneumatic lines, air cooled condenser, freight, travel, miscellaneous expenses, and all other parts that are not mentioned above that directly or indirectly affect the satisfactory operational condition of listed units including direct digital controls.