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PLUMBING PIPING SYSTEMS Section 15400 15-1207 valves and equipment. Reduce sizes where indicated by use of reducing fittings. Align piping accurately at connections, within 1/16 -inch misalignment tolerance. D. Locate piping runs, unless detailed otherwise, vertically and horizontally (pitched to drain). Install piping parallel and perpendicular to adjacent building walls/structure and avoid diagonal runs wherever possible. Orient horizontal runs parallel with walls and column lines. Locate runs as shown or described by diagrams, details and notations. Hold piping close to walls, overhead construction, columns, and other structural and permanent -enclosure elements of building; limit clearance to 1/2 -inch where furring is shown for enclosure or concealment of piping; locate insulated piping for 1" clearance outside insulation. Wherever possible in finished and occupied spaces, conceal piping from view by locating in column enclosures, in hollow wall construction, or above suspended ceilings; do not encase horizontal runs in solid partitions, except as indicated. E. Electrical Equipment Spaces: Do not run piping through transformer vaults, elevator equipment rooms, Data closets or other electrical or electronic equipment spaces or enclosures. F. Should structural difficulties or work of other contractors prevent the running of pipes or the setting of equipment at the points shown, Contractor to make the necessary deviations to the piping system, as determined by the Contractor, with the Architect's review, without additional cost to Owner. G. Inspect each piece of pipe and each fitting to see that there is no defective workmanship on pipe or obstructions in pipes and fittings. H. Installation Of Protective Pipe Wrap: Protect all steel pipe buried in ground from corrosion by the application of protective pipe wrap. Clean and prime pipe before application of the wrapping material. Installation Of Detectable Underground Warning Tape and Tracer Wire: 1. Provide all non-metallic pipes, including but not limited to plastic piping and vitrified clay piping with detectable underground tracing wire and warning tape. 2. Detectable underground tracing wire to be #10 (minimum) bare copper wire and installed approximately 2" above pipe. 3. Detectable underground warning tape shall consist of 4.5 mil foil tape printed with pipe service, (i.e. "CAUTION GAS LINE BELOW," "CAUTION WATER LINE BELOW," etc.). 4. Tape shall be buried approximately one-half of the pipes buried depth. 5. Tape buried up to 24" deep shall be a minimum of 3" wide. 6. Tape buried greater than 24" deep shall be a minimum of 6" wide. 3.02 INSTALLATION OF WATER PIPING: A. Run all water piping generally level, free of traps or unnecessary bends, arranged to conform to the building requirements, and to suit clearance for other mechanical work such as ducts, flues, conduits, and other work. No piping shall be installed so as to cause unusual noise from the flow of water therein under normal conditions. 7