the performance of the services concerns the operation and maintenance of thermal installations, the collective boiler rooms of the contracting authority, within the framework of a P.F.I. type contract (Service, Package and Profit-Sharing Market) with transparent total guarantee clause and with distribution

the performance of the services concerns the operation and maintenance of thermal installations, the collective boiler rooms of the contracting authority, within the framework of a P.F.I. type contract (Service, Package and Profit-Sharing Market) with transparent total guarantee clause and with distribution