All cutting and patching for new work shall be done by this contractor with the approval of the general contractor. Contractor shall provide coordination drawings: detail major elements, components, and systems of mechanical equipment and materials in relationship with other systems, installations, and building components. Show space requirements for installation and access. Indicate if sequence and coordination of installations are important to efficient flow of the work. Include the following: • Planned pipe layout, including valve and specialty locations and valve-stem movement. • Clearances for installing and maintaining insulation. • Clearances for servicing and maintaining equipment, accessories, and specialties, including space for disassembly required for periodic maintenance. • Equipment and accessory service connections and support details. • Exterior wall and roof penetrations. • Fire-rated wall and floor penetrations. • Sizes and location of required concrete pads and bases.