the purpose of this description is to define all the work, a set of tasks relating to the operation and maintenance of the heating, ventilation, air conditioning and smoke extraction (CVCD) installations of the buildings it occupies ("the Service" or "the Services") of the MNAAG
task relating to the operation and maintenance of the heating, ventilation, air conditioning and smoke extraction (CVCD) installations of the buildings it occupies ("the Service" or "the Services") of the MNAAG