1.1 CONTRACTOR SHALL HAVE PRIOR EXPERIENCE, WITHIN THE LAST 5 YEARS, REMOVING AND REPLACING EXISTING BOILERS WITH CONDENSING GAS BOILERS, PUMPS, ACCESSORIES AND CONTROLS INTEGRATION. CONTRACTOR SHALL SUBMIT QUALIFICATIONS WITH BID PACKAGE. 1.2 ALL WORK SHALL CONFORM TO 2015 INTERNATIONAL ENERGY CONSERVATION CODE, 2018 VERSION OF THE INTERNATIONAL BUILDING, PLUMBING, FUEL GAS, & MECHANICAL CODE ALL APPROVED LOCAL & STATE AMENDMENTS. 1.3 CONTRACTOR SHALL CONDUCT INSTALLATION AND INSPECTION PER THE LATEST ADOPTED GEORGIA BOILER CODE. CONTRACTOR SHALL COORDINATE FINAL INSPECTION AND CERTIFICATION OF BOILER PRIOR TO SUBSTANTIAL COMPLETION. 1.4 COORDINATION A. DRAWING PLANS, SCHEMATICS, AND DIAGRAMS INDICATE GENERAL LOCATION AND ARRANGEMENT OF PIPING SYSTEMS. INDICATED LOCATIONS AND ARRANGEMENTS WERE USED TO SIZE PIPE AND CALCULATE FRICTION LOSS, EXPANSION, PUMP SIZING, AND OTHER DESIGN CONSIDERATIONS. INSTALL PIPING AS INDICATED UNLESS DEVIATIONS TO LAYOUT ARE APPROVED ON COORDINATION DRAWINGS. B. INSTALL PIPING TO PERMIT VALVE SERVICING, AT INDICATED SLOPES, FREE OF SAGS AND BENDS. INSTALL PIPING TO ALLOW APPLICATION OF INSULATION. C. SELECT SYSTEM COMPONENTS WITH PRESSURE RATING EQUAL TO OR GREATER THAN SYSTEM OPERATING PRESSURE. D. INSTALL PIPING INDICATED TO BE EXPOSED AND PIPING IN EQUIPMENT ROOMS AND SERVICE AREAS AT RIGHT ANGLES OR PARALLEL TO BUILDING WALLS. DIAGONAL RUNS ARE PROHIBITED UNLESS SPECIFICALLY INDICATED OTHERWISE. E. INSTALL PIPING FREE OF SAGS AND BENDS. F. INSTALL FITTINGS FOR CHANGES IN DIRECTION AND BRANCH CONNECTIONS. G. INSTALL PIPING TO ALLOW APPLICATION OF INSULATION. H. VERIFY FINAL EQUIPMENT LOCATIONS FOR ROUGHING-IN. I. REFER TO EQUIPMENT MANUFACTURER INSTALLATION EQUIPMENT FOR ADDITIONAL ROUGHING-IN REQUIREMENTS. 1.5 PIPING JOINT CONSTRUCTION A. REAM ENDS OF PIPES AND TUBES AND REMOVE BURRS. BEVEL PLAIN ENDS OF STEEL PIPE. B. REMOVE SCALE, SLAG, DIRT, AND DEBRIS FROM INSIDE AND OUTSIDE OF PIPE AND FITTINGS BEFORE ASSEMBLY. C. SOLDERED JOINTS: APPLY ASTM B 813, WATER-FLUSHABLE FLUX, UNLESS OTHERWISE INDICATED, TO TUBE END. CONSTRUCT JOINTS ACCORDING TO ASTM B 828 OR CDA'S "COPPER TUBE HANDBOOK," USING LEAD-FREE SOLDER ALLOY COMPLYING WITH ASTM B 32. D. BRAZED JOINTS: CONSTRUCT JOINTS ACCORDING TO AWS'S "BRAZING HANDBOOK," "PIPE AND TUBE" CHAPTER, USING COPPER-PHOSPHORUS BRAZING FILLER METAL COMPLYING WITH AWS A5.8. E. PRO-PRESS FITTINGS FOR DOMESTIC WATER COMPLY WITH VIEGA INSTALLATION INSTRUCTIONS. 1.6 ERECTION OF METAL SUPPORTS AND ANCHORAGES A. CUT, FIT, AND PLACE MISCELLANEOUS METAL SUPPORTS ACCURATELY IN LOCATION, ALIGNMENT, AND ELEVATION TO SUPPORT AND ANCHOR MECHANICAL MATERIALS AND EQUIPMENT. 1.7 SPECIALTIES A. BALL VALVES: MSS SP-110, CLASS 150, 600-PSI CWP, ASTM B564 TWO-PIECE, COPPER-ALLOY BRONZE BODY AND BONNET WITH FULL-PORT, CHROME-PLATED BRASS BALL; PTFE OR TFE SEATS, BLOWOUT-PROOF BRASS OR BRONZE STEM, THREADED OR VIEGA PROPRESS END CONNECTIONS: 1.) OPERATOR: VINYL-COVERED STEEL LEVER HANDLE. 2.) STEM EXTENSION: FOR VALVES INSTALLED IN INSULATED PIPING. 3.) MEMORY STOP: FOR OPERATOR HANDLES. B. 200 CWP, IRON, SINGLE-FLANGE BUTTERFLY VALVES WITH EPDM SEAT AND DUCTILE-IRON DISC: 1.) MODEL EQUAL TO WATTS SERIES DBF-04 2.) STANDARD: MSS SP-67, TYPE I. 3.) CWP RATING: 200 PSIG (1380 KPA). 4.) BODY DESIGN: LUG TYPE; SUITABLE FOR BIDIRECTIONAL DEAD-END SERVICE AT RATED PRESSURE WITHOUT USE OF DOWNSTREAM FLANGE. 5.) BODY MATERIAL: ASTM A 126, CAST IRON OR ASTM A 536, DUCTILE IRON. 6.) SEAT: EPDM. 7.) STEM: ONE- OR TWO-PIECE STAINLESS STEEL. 8.) DISC: NICKEL-PLATED DUCTILE IRON. C. APPLICATION SCHEDULE 1.) GENERAL APPLICATION: USE BALL VALVES FOR SHUTOFF DUTY. 1.8 CONDENSING BOILER VENT PIPING A. CPVC HI-TEMP: 1.) CPVC SCHEDULE 40 SOLID-WALL PIPE ASTM D1784 & F441 PIPING & SCHEDULE 80 ASTM F439 FITTINGS a.) USE APPROPRIATE MANUFACTURER RECOMMENDED CEMENT FOR PIPE SIZE AND FIELD INSTALLATION. B. INSTALL VENT HORIZONTAL PIPING AT THE FOLLOWING MINIMUM SLOPES, UNLESS OTHERWISE INDICATED BY MANUF IOM: 1.) 2 PERCENT DOWNWARD IN DIRECTION OF FLOW FOR PIPING NPS 2 AND SMALLER. 1.9 INSULATION A. ALL HEATING WATER PIPING ALONG SHALL BE INSULATED WITH TYPE I MINERAL OR GLASS FIBERS BONDED WITH A THERMOSETTING RESIN. COMPLY WITH ASTM C 547, TYPE I, GRADE A, & ASTM C335 WITH FACTORY-APPLIED ASJ-SSL. MIN. THICKNESS OF 2" REQUIRED FOR ALL PIPING, EXCEPT BLOWDOWN DRAINS. B. PROVIDE AND INSTALL GALVANIZED INSULATION SHIELDS AT HANGER LOCATIONS. C. DO NOT INSULATE OVER VALVES OR PIPING SPECIALTIES. 1.10 HANGERS & SUPPORTS A. PIPE HANGER AND SUPPORT INSTALLATION: COMPLY WITH MSS SP-69 AND MSS SP-89. INSTALL HANGERS, SUPPORTS, CLAMPS, AND ATTACHMENTS AS REQUIRED TO PROPERLY SUPPORT PIPING FROM BUILDING STRUCTURE. PROVIDE INSULATION SHIELDS AT SUPPORTS. B. INSTALL HANGERS AND SUPPORTS COMPLETE WITH NECESSARY INSERTS, BOLTS, RODS, NUTS, WASHERS, AND OTHER ACCESSORIES. INSTALL HANGERS AND SUPPORTS TO PROVIDE INDICATED PIPE SLOPES AND SO MAXIMUM PIPE DEFLECTIONS ALLOWED BY ASME B31.9 ARE NOT EXCEEDED. 1.) INDIVIDUAL, STRAIGHT, HORIZONTAL PIPING RUNS: ACCORDING TO THE FOLLOWING: a.) 100 FEET AND LESS: MSS TYPE 1, ADJUSTABLE, STEEL CLEVIS HANGERS. b.) LONGER THAN 100 FEET: MSS TYPE 43, ADJUSTABLE ROLLER HANGERS. 2.) INSTALL HANGERS FOR PIPNG WITH THE FOLLOWING MAXIMUM HORIZONTAL SPACING AND MINIMUM ROD DIAMETERS: a.) NPS 1-1/4 AND SMALLER: 84 INCHES WITH 3/8-INCH ROD. b.) NPS 1-1/2: 108 INCHES WITH 3/8-INCH ROD. c.) NPS 2: 10 FEET WITH 1/2-INCH ROD. d.) NPS 2-1/2: 10 FEET WITH 1/2-INCH ROD. e.) NPS 3 AND NPS 3-1/2: 12 FEET WITH 1/2-INCH ROD. f.) NPS 4 AND NPS 5: 12 FEET WITH 5/8-INCH ROD. g.) NPS 6: 12 FEET WITH 3/4-INCH ROD. h.) SUPPORT PIPING AND TUBING ACCORDING TO MSS SP-69 AND MANUFACTURER'S WRITTEN INSTRUCTIONS.
