The project budget includes 53,134,556.76 yuan for the construction and installation of the heating and cooling source machine room system and 70 yuan/m²/year for operation and maintenance services. In terms of operation, the user will cooperate with the successful bidder for 20 years, with the successful bidder responsible for operation and maintenance management. The operation fee is a lump sum, covering water, electricity, gas, equipment repair and replacement, system maintenance, and other expenses. The heating and cooling source installation project includes the procurement, installation, and commissioning of the composite heating and cooling source machine room system and its equipment and facilities, with specific details subject to the engineering drawings and specifications.