These specifications are for Monthly HVAC Maintenance contract for the heating, ventilating and air conditioning (HVAC) system located at the Louisiana Department of Transportation and Development District 04 Headquarters office, 3339 Industrial Dr., Bossier City, LA 71112. Contractor shall perform all maintenance service, either to repair or replace components/parts that prove defective or become worn under normal use. This service shall be provided on a 24 hour, 7 day basis to include Holidays. See Schedules 1 and 2 for equipment listing, descriptions, locations and air filter information. The contractor will provide complete mechanical maintenance in accordance with the terms and conditions set forth in these specifications and the maintenance recommendations of the equipment manufacturers. The contract will consist of furnishing all labor, component parts, equipment, and materials for the routine maintenance, repair and/or replacement of all equipment pertaining to the heating and air conditioning systems. The contractor shall be responsible for the maintenance, repair, and replacement of all electrical components such as compressors, fan motors, contactors, and thermostats. The system will receive routine maintenance and complete repair or replacement under the terms and conditions provided under this contract. Any equipment installed during the monthly maintenance will become part of the scope of work for monthly maintenance at the prices bid. Replacements and/or repairs to satisfy the monthly maintenance must be performed in the most expedient manner possible (including outside of normal business hours and on weekends) and in accordance with industry standards and to the satisfaction of the Department. Normal preventive maintenance must take place between the hours of 7:45 A.M. and 4:15 P.M., Monday through Friday, excluding Department holidays. The contractor shall be free to start and stop all primary equipment incidentals to the heating and air conditioning systems by mutual agreement between the contractor and the DOTD representative. The contractor will furnish a detailed estimate of downtime for all major repairs.