Specifications include, but are not limited to: 1. PIPE MATERIAL: ALL NEW HVAC PIPE (GREATER THAN 1IN.) SHALL BE A53, SCHEDULE 40. ALL DRAIN, VENT, MAKEUP WATER, GAUGE AND HVAC CHILLED WATER PIPING (1IN. OR SMALLER) SHALL BE HARD-DRAWN COPPER (OR, FOR GAUGE PIPING, THREADED BRASS) WITH DI-ELECTRIC UNIONS AT CONNECTIONS TO STEEL PIPING. 2. MECHANICAL PIPE INSULATION (CHILLED WATER PIPING - INCLUDING EXPANSION TANK AND FILTER FEEDER PIPING): FOR ALL INDICATED NEW CHILLED WATER PIPING, COAT EVERY SQUARE INCH OF ALL STEEL PIPE, FITTINGS AND ACCESSORIES (INCLUDING VALVES, FLANGES, NUTS, BOLTS, THREADS, TEST PORTS, BASICALLY EVERY INCH OF STEEL TO BE COVERED BY INSULATION) USING BENJAMIN FOSTERS BF6026 TROWELL GRADE MASTIC (APPLIED USING A STIFF BRISTLED BRUSH). PROVIDE 2IN. PHENOLIC FOAM INSULATION PER THE MANUFACTURERS RECOMMENDATIONS. ALSO IN THESE AREAS, FOR VALVES, STRAINERS, AIR-DIRT SEPARATOR ADS1, EXPANSION TANK EX1, FILTER FEEDER FF1, AND CHILLED WATER PUMPS, PROVIDE MIN. 1-1/2IN. THICK ELASTOMERIC (CLOSED-CELL FOAM) ARMAFLEX INSULATION, NEATLY CUT, TRIMMED, MITERED, AND GLUED TIGHT TO ALL SURFACES WITHIN 3IN. OF CONTACT WITH CHILLED WATER. PROVIDE 1IN. URETHANE INSULATION FOR FILTER FEEDER FF1 AND EXPANSION TANK EX1 PIPING. PROVIDE .032IN. TK. ALUMINUM FINISH ON THE FILTER FEEDER, EXPANSION TANK AND ALL PIPING (INTERIOR AND EXTERIOR) BELOW 7FT. ABOVE THE FINISHED SLAB/FLOOR. THESE REQUIREMENTS APPLY TO ALL INDICATED CHILLED WATER PIPING, INTERIOR AND EXTERIOR. 3. MECHANICAL PIPE INSULATION (HOT WATER PIPING): FOR ALL INDICATED NEW AND EXISTING HOT WATER PIPING (GREATER THAN 1IN.), COAT EVERY SQUARE INCH OF ALL STEEL PIPE, FITTINGS AND ACCESSORIES (INCLUDING VALVES, FLANGES, NUTS, BOLTS, THREADS, TEST PORTS, PUMP CASING, BASICALLY EVERY SQUARE INCH OF STEEL), WITH A SUITABLE RED PIPE PIMER. INSULATE ALL PIPING (GREATER THAN 1IN.), USING 2IN. THICK PHENOLIC FOAM, INSULATION. VALVES, STRAINERS, HOT WATER PUMP CASINGS AND OTHER VALVE ACCESSORIES SHALL REMAIN UN-INSULATED. PROVIDE .032IN. TK. ALUMINUM FINISH ON ALL PIPING BELOW 7FT. ABOVE THE FINISHED SLAB/FLOOR. THESE REQUIREMENTS APPLY TO ALL INDICATED HOT WATER PIPING IN THE BOILER/PUMP ROOMS.
