District cooling / district heating, heat exchangers, cooling tower, thermal storage system [tes tank], domestic / centralized hot water system, turnkey steam system, turnkey solar system, turnkey boiler system, chiller, chilled water pump, valves, compressed air piping, generator fuel filling system, air separators, air dirt separators, expansion tanks, y strainers, duplex strainers, basket strainers, suction diffusers, triple duty valves, automatic air vents.