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SPECIFICATIONS INDEX GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS DIVISION 23— MECHANICAL Specifications Index - Office f the Governor, § Thomas. U. S$ \ i Is SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 A. 1.2 w mo 9 1.3 1.4 1.5 SUMMARY Section Includes: 1. Balancing Air Systems: a. Constant-volume air systems. DEFINITIONS AABC: Associated Air Balance Council. NEBB: National Environmental Balancing Bureau. TAB: Testing, adjusting, and balancing. TABB: Testing, Adjusting, and Balancing Bureau. TAB Specialist: An entity engaged to perform TAB Work. ACTION SUBMITTALS LEED Submittals: 1. Air-Balance Report for Prerequisite IEQ 1: Documentation of work performed for ASHRAE 62.1, Section 7.2.2 - "Air Balancing." 2. TAB Report for Prerequisite EA 2: Documentation of work performed for ASHRAE/IESNA 90.1, Section 6.7.2.3 - "System Balancing.” INFORMATIONAL SUBMITTALS Strategies and Procedures Plan: Within 60 days of Contractor's Notice to Proceed, submit TAB strategies and step-by-step procedures as specified in "Preparation" Article. Certified TAB reports. QUALITY ASSURANCE TAB Contractor Qualifications: Engage a TAB entity certified by AABC NEBB or TABB. 1. TAB Field Supervisor: Employee of the TAB contractor and certified by AABC NEBB or TABB. 2. TAB Technician: Employee of the TAB contractor and who is certified by AABC NEBB or TABB as a TAB technician. Certify TAB field data reports and perform the following: Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS l. Review field data reports to validate accuracy of data and to prepare certified TAB reports. 2. Certify that the TAB team complied with the approved TAB plan and the procedures specified and referenced in this Specification. TAB Report Forms: Use standard TAB contractor's forms approved by Commissioning Authority. Instrumentation Type, Quantity, Accuracy, and Calibration: As described in ASHRAE 111, Section 5, "Instrumentation." ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 7.2.2 - "Air Balancing." ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1, Section 6.7.2.3 - "System Balancing." PART 2 - PRODUCTS (Not Applicable) PART 3 - EXECUTION 3.1 A. EXAMINATION Examine the Contract Documents to become familiar with Project requirements and to discover conditions in systems' designs that may preclude proper TAB of systems and equipment. Examine systems for installed balancing devices, such as test ports, gage cocks, thermometer wells, flow-control devices, balancing valves and fittings, and manual volume dampers. Verify that locations of these balancing devices are accessible. Examine the approved submittals for HVAC systems and equipment. Examine design data including HVAC system descriptions, statements of design assumptions for environmental conditions and systems’ output, and statements of philosophies and assumptions about HVAC system and equipment controls. Examine ceiling plenums used for supply, return, or relief air to verify that they meet the leakage class of connected ducts as specified in Section 233113 "Metal Ducts" and are properly separated from adjacent areas. Verify that penetrations in plenum walls are sealed and fire-stopped if required. Examine equipment performance data including fan and pump curves. 1. Relate performance data to Project conditions and requirements, including system effects that can create undesired or unpredicted conditions that cause reduced capacities in all or part of a system. Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IT RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS Oo 2 & a 3.2 2. Calculate system-effect factors to reduce performance ratings of HVAC equipment when installed under conditions different from the conditions used to rate equipment performance. To calculate system effects for air systems, use tables and charts found in AMCA 201, "Fans and Systems," or in SMACNA's "HVAC Systems - Duct Design." Compare results with the design data and installed conditions. Examine system and equipment installations and verify that field quality-control testing, cleaning, and adjusting specified in individual Sections have been performed. Examine test reports specified in individual system and equipment Sections. Examine HVAC equipment and filters and verify that bearings are greased, belts are aligned and tight, and equipment with functioning controls is ready for operation. Examine terminal units, such as variable-air-volume boxes, and verify that they are accessible and their controls are connected and functioning. Examine strainers. Verify that startup screens are replaced by permanent screens with indicated perforations. Examine three-way valves for proper installation for their intended function of diverting or mixing fluid flows. Examine heat-transfer coils for correct piping connections and for clean and straight fins. Examine system pumps to ensure absence of entrained air in the suction piping. Examine operating safety interlocks and controls on HVAC equipment. Report deficiencies discovered before and during performance of TAB procedures. Observe and record system reactions to changes in conditions. Record default set points if different from indicated values. PREPARATION Prepare a TAB plan that includes strategies and step-by-step procedures. Complete system-readiness checks and prepare reports. Verify the following: 1. | Permanent electrical-power wiring is complete. 2. Automatic temperature-control systems are operational. 3. Equipment and duct access doors are securely closed. 4. Balance, smoke, and fire dampers are open. 5. Isolating and balancing valves are open and control valves are operational. 6. Ceilings are installed in critical areas where air-pattern adjustments are required and access to balancing devices is provided. 7. Windows and doors can be closed so indicated conditions for system operations can be met. Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IIT RENOVATION AT 194A —- 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.3 3.4 U 7 Oo 7 _ J. GENERAL PROCEDURES FOR TESTING AND BALANCING Perform testing and balancing procedures on each system according to the procedures contained in AABC's "National Standards for Total System Balance" ASHRAE 111 NEBB's "Procedural Standards for Testing, Adjusting, and Balancing of Environmental Systems" SMACNA's "HVAC Systems - Testing, Adjusting, and Balancing" and in this Section. 1. Comply with requirements in ASHRAE 62.1, Section 7.2.2 - "Air Balancing." Cut insulation, ducts, pipes, and equipment cabinets for installation of test probes to the minimum extent necessary for TAB procedures. 1. After testing and balancing, patch probe holes in ducts with same material and thickness as used to construct ducts. 2. Install and join new insulation that matches removed materials. Restore insulation, coverings, vapor barrier, and finish according to Section 23 07 13 “Duct Insulation," Section 230716 "HVAC Equipment Insulation,” Section 230719 "HVAC Piping Insulation.” Mark equipment and balancing devices, including damper-control positions, valve position indicators, fan-speed-control levers, and similar controls and devices, with paint or other suitable, permanent identification material to show final settings. Take and report testing and balancing measurements in inch-pound (IP) units. GENERAL PROCEDURES FOR BALANCING AIR SYSTEMS Prepare test reports for both fans and outlets. Obtain manufacturer's outlet factors and recommended testing procedures. Crosscheck the summation of required outlet volumes with required fan volumes. Prepare schematic diagrams of systems’ "as-built" duct layouts. Determine the best locations in main and branch ducts for accurate duct-airflow measurements. Check airflow patterns from the outdoor-air louvers and dampers and the return- and exhaust-air dampers through the supply-fan discharge and mixing dampers. Locate start-stop and disconnect switches, electrical interlocks, and motor starters. Verify that motor starters are equipped with properly sized thermal protection. Check dampers for proper position to achieve desired airflow path. Check for airflow blockages. Check condensate drains for proper connections and functioning. Check for proper sealing of air-handling-unit components. Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.5 Verify that air duct system is sealed as specified in Section 23 31 13 "Metal Ducts." PROCEDURES FOR CONSTANT-VOLUME AIR SYSTEMS Adjust fans to deliver total indicated airflows within the maximum allowable fan speed listed by fan manufacturer. 1. Measure total airflow. a. Where sufficient space in ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow. Measure fan static pressures as follows to determine actual static pressure: a. Measure outlet static pressure as far downstream from the fan as practical and upstream from restrictions in ducts such as elbows and transitions. b. Measure static pressure directly at the fan outlet or through the flexible connection. c. Measure inlet static pressure of single-inlet fans in the inlet duct as near the fan as possible, upstream from the flexible connection, and downstream from duct restrictions. d. Measure inlet static pressure of double-inlet fans through the wall of the plenum that houses the fan. Measure static pressure across each component that makes up an air-handling unit, rooftop unit, and other air-handling and -treating equipment. a. Report the cleanliness status of filters and the time static pressures are measured. Measure static pressures entering and leaving other devices, such as sound traps, heat- recovery equipment, and air washers, under final balanced conditions. Review Record Documents to determine variations in design static pressures versus actual static pressures. Calculate actual system-effect factors. Recommend adjustments to accommodate actual conditions. Obtain approval from Commissioning Authority for adjustment of fan speed higher or lower than indicated speed. Comply with requirements in Sections for air-handling units for adjustment of fans, belts, and pulley sizes to achieve indicated air-handling-unit performance. Do not make fan-speed adjustments that result in motor overload. Consult equipment manufacturers about fan-speed safety factors. Modulate dampers and measure fan-motor amperage to ensure that no overload will occur. Measure amperage in full-cooling, full- heating, economizer, and any other operating mode to determine the maximum required brake horsepower. Adjust volume dampers for main duct, submain ducts, and major branch ducts to indicated airflows within specified tolerances. 1. Measure airflow of submain and branch ducts. Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IIT RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U.S. VIRGIN ISLANDS 3.6 3.7 a. Where sufficient space in submain and branch ducts is unavailable for Pitot-tube traverse measurements, measure airflow at terminal outlets and inlets and calculate the total airflow for that zone. 2. Measure static pressure at a point downstream from the balancing damper, and adjust volume dampers until the proper static pressure is achieved. 3. Remeasure each submain and branch duct after all have been adjusted. Continue to adjust submain and branch ducts to indicated airflows within specified tolerances. Measure air outlets and inlets without making adjustments. 1. Measure terminal outlets using a direct-reading hood or outlet manufacturer's written instructions and calculating factors. Adjust air outlets and inlets for each space to indicated airflows within specified tolerances of indicated values. Make adjustments using branch volume dampers rather than extractors and the dampers at air terminals. 1. Adjust each outlet in same room or space to within specified tolerances of indicated quantities without generating noise levels above the limitations prescribed by the Contract Documents. 2. Adjust patterns of adjustable outlets for proper distribution without drafts. PROCEDURES FOR MOTORS Motors, 1/2 HP and Larger: Test at final balanced conditions and record the following data: Manufacturer's name, model number, and serial number. Motor horsepower rating. Motor rpm. Efficiency rating. Nameplate and measured voltage, each phase. Nameplate and measured amperage, each phase. Starter thermal-protection-element rating. MAU RWNH > Motors Driven by Variable-Frequency Controllers: Test for proper operation at speeds varying from minimum to maximum. Test the manual bypass of the controller to prove proper operation. Record observations including name of controller manufacturer, model number, serial number, and nameplate data. PROCEDURES FOR CONDENSING UNITS Verify proper rotation of fans. Measure entering- and leaving-air temperatures. Record compressor data. Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.8 3.9 3.10 3.11 C. Page7of8 PROCEDURES FOR HEAT-TRANSFER COILS Measure, adjust, and record the following data for each refrigerant coil: 1. Dry-bulb temperature of entering and leaving air. 2. Wet-bulb temperature of entering and leaving air. 3. Airflow. 4. Air pressure drop. 5. Refrigerant suction pressure and temperature. TOLERANCES Set HVAC system's air flow rates and water flow rates within the following tolerances: 1. Supply, Return, and Exhaust Fans and Equipment with Fans: Plus or minus 10 percent. 2. Air Outlets and Inlets: Plus or minus 10 percent. REPORTING Initial Construction-Phase Report: Based on examination of the Contract Documents as specified in "Examination" Article, prepare a report on the adequacy of design for systems’ balancing devices. Recommend changes and additions to systems’ balancing devices to facilitate proper performance measuring and balancing. Recommend changes and additions to HVAC systems and general construction to allow access for performance measuring and balancing devices. Status Reports: Prepare biweekly progress reports to describe completed procedures, procedures in progress, and scheduled procedures. Include a list of deficiencies and problems found in systems being tested and balanced. Prepare a separate report for each system and each building floor for systems serving multiple floors. FINAL REPORT General: Prepare a certified written report; tabulate and divide the report into separate sections for tested systems and balanced systems. 1. Include a certification sheet at the front of the report's binder, signed and sealed by the certified testing and balancing engineer. 2. Include a list of instruments used for procedures, along with proof of calibration. Final Report Contents: In addition to certified field-report data, include the following: 1. Fan curves. 2. Manufacturers’ test data. 3. Field test reports prepared by system and equipment installers. 4. Other information relative to equipment performance; do not include Shop Drawings and product data. General Report Data: In addition to form titles and entries, include the following data: Jaredian Design Group SECTION 23 05 93 — TESTING, ADJUSTING AND BALANCING FOR HVAC GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IIT RENOVATION AT 19A —- 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS BYN> OMIA o — — 12. 13. 14. 15. Title page. Name and address of the TAB contractor. Project name. Project location. Architect's name and address. Engineer's name and address. Contractor's name and address. Report date. Signature of TAB supervisor who certifies the report. Table of Contents with the total number of pages defined for each section of the report. Number each page in the report. Summary of contents including the following: a. Indicated versus final performance. b. Notable characteristics of systems. c. Description of system operation sequence if it varies from the Contract Documents. Nomenclature sheets for each item of equipment. Data for terminal units, including manufacturer's name, type, size, and fittings. Notes to explain why certain final data in the body of reports vary from indicated values. Test conditions for fans and pump performance forms including the following: Settings for outdoor-, return-, and exhaust-air dampers. Conditions of filters. Cooling coil, wet- and dry-bulb conditions. Fan drive settings including settings and percentage of maximum pitch diameter. Other system operating conditions that affect performance. ge ao TP 3.12 ADDITIONAL TESTS A. — Within 90 days of completing TAB, perform additional TAB to verify that balanced conditions are being maintained throughout and to correct unusual conditions. END OF SECTION Jaredian Design Group SECTION 23 07 13 - DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 SUMMARY A. — Section includes insulating the following duct services: 1. Indoor, concealed supply air. B. _ Related Sections: 1. Section 23 31 13 "Metal Ducts". 1.2 ACTION SUBMITTALS A. — Product Data: For each type of product indicated. B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. I. Detail application of protective shields, saddles, and inserts at hangers for each type of insulation and hanger. 2. Detail insulation application at elbows, fittings, dampers, specialties and flanges for each type of insulation. 3. Detail application of field-applied jackets. 4. Detail application at linkages of control devices. 1.3 INFORMATIONAL SUBMITTALS A. — Field quality-control reports. 1.4 QUALITY ASSURANCE A. — Surface-Burning Characteristics: For insulation and related materials, as determined by testing identical products according to ASTM E 84, by a testing agency acceptable to authorities having jurisdiction. Factory label insulation and jacket materials and adhesive, mastic, tapes, and cement material containers, with appropriate markings of applicable testing agency. 1. Insulation Installed Indoors: Flame-spread index of 25 or less, and smoke-developed index of 50 or less. PART 2 - PRODUCTS 2.1 INSULATION MATERIALS A. Comply with requirements in "Duct Insulation Schedule, General," and "Indoor Duct and Plenum Insulation Schedule" articles for where insulating materials shall be applied. B. Products shall not contain asbestos, lead, mercury, or mercury compounds. Jaredian Design Group SECTION 23 07 13 —- DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.2 Page 2 of t4 Products that come in contact with stainless steel shall have a leachable chloride content of less than 50 ppm when tested according to ASTM C 871. Insulation materials for use on austenitic stainless steel shall be qualified as acceptable according to ASTM C 795. Foam insulation materials shall not use CFC or HCFC blowing agents in the manufacturing process. Mineral-Fiber Blanket Insulation: Mineral or glass fibers bonded with a thermosetting resin. Comply with ASTM C 553, Type II and ASTM C 1290, Type III with factory-applied FSK jacket. Factory-applied jacket requirements are specified in "Factory-Applied Jackets" Article. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. CertainTeed Corp.; SoftTouch Duct Wrap. b. Johns Manville; Microlite. c. Knauf Insulation; Friendly Feel Duct Wrap. d. Manson Insulation Inc.; Alley Wrap. e. Owens Corning; SOFTR All-Service Duct Wrap. ADHESIVES Materials shall be compatible with insulation materials, jackets, and substrates and for bonding insulation to itself and to surfaces to be insulated unless otherwise indicated. Mineral-Fiber Adhesive: Comply with MIL-A-3316C, Class 2, Grade A. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. Childers Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; CP-127. b. Eagle Bridges - Marathon Industries; 225. c. Foster Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; 85-60/85-70. d. Mon-Eco Industries, Inc.; 22-25. 2. For indoor applications, adhesive shall have a VOC content of 80 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). 3. Adhesive shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." ASJ Adhesive, and FSK Jacket Adhesive: Comply with MIL-A-3316C, Class 2, Grade A for bonding insulation jacket lap seams and joints. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U.S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS a. Childers Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; CP-82. b. Eagle Bridges - Marathon Industries; 225. c. Foster Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; 85-50. d. Mon-Eco Industries, Inc.; 22-25. For indoor applications, adhesive shall have a VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). Adhesive shall comply with the testing and product requirements of the California Department of Health Services’ "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." 2.3 MASTICS A. Materials shall be compatible with insulation materials, jackets, and substrates; comply with MIL-PRF-19565C, Type II. 1. For indoor applications, use mastics that have a VOC content of 50 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). B. _ Vapor-Barrier Mastic: Water based; suitable for indoor use on below ambient services. 1. 3. 4. 5 Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. Foster Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; 30-80/30-90. b. Vimasco Corporation; 749. Water-Vapor Permeance: ASTM E 96/E 96M, Procedure B, 0.013 perm (0.009 metric perm) at 43-mil (1.09-mm) dry film thickness. Service Temperature Range: Minus 20 to plus 180 deg F (Minus 29 to plus 82 deg C). Solids Content: ASTM D 1644, 58 percent by volume and 70 percent by weight. Color: White. C. Breather Mastic: Water based; suitable for indoor and outdoor use on above ambient services. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. Childers Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; CP-10. b. Eagle Bridges - Marathon Industries; 550. Cc. Foster Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; 46-50. d. Mon-Eco Industries, Inc.; 55-50. e. Vimasco Corporation; WC-1/WC-S. Water-Vapor Permeance: ASTM F 1249, 1.8 perms (1.2 metric perms) at 0.0625-inch (1.6-mm) dry film thickness. Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.4 3. Service Temperature Range: Minus 20 to plus 180 deg F (Minus 29 to plus 82 deg C). 4. Solids Content: 60 percent by volume and 66 percent by weight. 5. Color: White. SEALANTS FSK and Metal Jacket Flashing Sealants: 1. AUWPRWN Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. Childers Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; CP-76. b. Eagle Bridges - Marathon Industries; 405. c. Foster Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; 95-44. d. Mon-Eco Industries, Inc.; 44-05. Materials shall be compatible with insulation materials, jackets, and substrates. Fire- and water-resistant, flexible, elastomeric sealant. Service Temperature Range: Minus 40 to plus 250 deg F (Minus 40 to plus 121 deg C). Color: Aluminum. For indoor applications, use sealants that have a VOC content of 420 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). Sealants shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." ASJ Flashing Sealants, and Vinyl and PVC Jacket Flashing Sealants: 1. ANP WY Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. Childers Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; CP-76. Materials shall be compatible with insulation materials, jackets, and substrates. Fire- and water-resistant, flexible, elastomeric sealant. Service Temperature Range: Minus 40 to plus 250 deg F (Minus 40 to plus 121 deg C). Color: White. For indoor applications, sealants shall have a VOC content of 420 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). Sealants shall comply with the testing and product requirements of the California Department of Health Services’ "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.5 2.6 2.7 FACTORY-APPLIED JACKETS Insulation system schedules indicate factory-applied jackets on various applications. When factory-applied jackets are indicated, comply with the following: 1. ASJ: White, kraft-paper, fiberglass-reinforced scrim with aluminum-foil backing; complying with ASTM C 1136, Type I. 2. ASJ-SSL: ASJ with self-sealing, pressure-sensitive, acrylic-based adhesive covered by a removable protective strip; complying with ASTM C 1136, Type I. 3. FSK Jacket: Aluminum-foil, fiberglass-reinforced scrim with kraft-paper backing; complying with ASTM C 1136, Type II. 4, FSP Jacket: Aluminum-foil, fiberglass-reinforced scrim with polyethylene backing; complying with ASTM C 1136, Type II. 5. Vinyl Jacket: White vinyl with a permeance of 1.3 perms (0.86 metric perm) when tested according to ASTM E 96/E 96M, Procedure A, and complying with NFPA 90A and NFPA 90B. FIELD-APPLIED FABRIC-REINFORCING MESH Woven Polyester Fabric: Approximately | 0z./sq. yd. (34 g/sq. m) with a thread count of 10 strands by 10 strands/sq. in. (4 strands by 4 strands/sq. mm), in a Leno weave, for ducts. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. Foster Brand, Specialty Construction Brands, Inc., a business of H. B. Fuller Company; Mast-A-Fab. b. Vimasco Corporation; Elastafab 894. TAPES ASJ Tape: White vapor-retarder tape matching factory-applied jacket with acrylic adhesive, complying with ASTM C 1136. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. ABI, Ideal Tape Division; 428 AWF ASJ. b Avery Dennison Corporation, Specialty Tapes Division; Fasson 0836. c. Compac Corporation; 104 and 105. d Venture Tape; 1540 CW Plus, 1542 CW Plus, and 1542 CW Plus/SQ. Width: 3 inches (75 mm). Thickness: 11.5 mils (0.29 mm). Adhesion: 90 ounces force/inch (1.0 N/mm) in width. Elongation: 2 percent. Tensile Strength: 40 Ibf/inch (7.2 N/mm) in width. ASJ Tape Disks and Squares: Precut disks or squares of ASJ tape. NAAR YWN Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS B. _FSK Tape: Foil-face, vapor-retarder tape matching factory-applied jacket with acrylic adhesive; complying with ASTM C 1136. 1. NAWAWN Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. ABI, Ideal Tape Division; 491 AWF FSK. b Avery Dennison Corporation, Specialty Tapes Division; Fasson 0827. Cc. Compac Corporation; 110 and 111. d Venture Tape; 1525 CW NT, 1528 CW, and 1528 CW/SQ. Width: 3 inches (75 mm). Thickness: 6.5 mils (0.16 mm). Adhesion: 90 ounces force/inch (1.0 N/mm) in width. Elongation: 2 percent. Tensile Strength: 40 lbf/inch (7.2 N/mm) in width. FSK Tape Disks and Squares: Precut disks or squares of FSK tape. C. PVC Tape: White vapor-retarder tape matching field-applied PVC jacket with acrylic adhesive; suitable for indoor and outdoor applications. 1. ANPYWN D. A 1. AWPWHN Page G of 14 Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. ABI, Ideal Tape Division; 370 White PVC tape. b. Compac Corporation; 130. c. Venture Tape; 1506 CW NS. Width: 2 inches (50 mm). Thickness: 6 mils (0.15 mm). Adhesion: 64 ounces force/inch (0.7 N/mm) in width. Elongation: 500 percent. Tensile Strength: 18 Ibf/inch (3.3 N/mm) in width. luminum-Foil Tape: Vapor-retarder tape with acrylic adhesive. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. ABI, Ideal Tape Division; 488 AWF. b Avery Dennison Corporation, Specialty Tapes Division; Fasson 0800. c. Compac Corporation; 120. d Venture Tape; 3520 CW. Width: 2 inches (50 mm). Thickness: 3.7 mils (0.093 mm). Adhesion: 100 ounces force/inch (1.1 N/mm) in width. Elongation: 5 percent. Tensile Strength: 34 lbf/inch (6.2 N/mm) in width. Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U.S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.8 SECUREMENTS Aluminum Bands: ASTM B 209 (ASTM B 209M), Alloy 3003, 3005, 3105, or 5005; Temper H-14, 0.020 inch (0.51 mm) thick, 1/2 inch (13 mm) wide with wing seal or closed seal. 1. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: a. ITW Insulation Systems; Gerrard Strapping and Seals. b. RPR Products, Inc.; Insul-Mate Strapping, Seals, and Springs. Insulation Pins and Hangers: 1. Metal, Adhesively Attached, Perforated-Base Insulation Hangers: Baseplate welded to projecting spindle that is capable of holding insulation, of thickness indicated, securely in position indicated when self-locking washer is in place. Comply with the following requirements: a. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: 1) | AGM Industries, Inc.; Tactoo Perforated Base Insul-Hangers. 2) GEMCO; Perforated Base. 3) Midwest Fasteners, Inc.; Spindle. b. Baseplate: Perforated, galvanized carbon-steel sheet, 0.030 inch (0.76 mm) thick by 2 inches (50 mm) square. c. Spindle: Stainless steel, fully annealed, 0.106-inch- (2.6-mm-) diameter shank, length to suit depth of insulation indicated. d. Adhesive: Recommended by hanger manufacturer. Product with demonstrated capability to bond insulation hanger securely to substrates indicated without damaging insulation, hangers, and substrates. Nonmetal, Adhesively Attached, Perforated-Base Insulation Hangers: Baseplate fastened to projecting spindle that is capable of holding insulation, of thickness indicated, securely in position indicated when self-locking washer is in place. Comply with the following requirements: a. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: 1) GEMCO; Nylon Hangers. 2) | Midwest Fasteners, Inc.; Nylon Insulation Hangers. b. Baseplate: Perforated, nylon sheet, 0.030 inch (0.76 mm) thick by 1-1/2 inches (38 mm) in diameter. c. Spindle: Nylon, 0.106-inch- (2.6-mm-) diameter shank, length to suit depth of insulation indicated, up to 2-1/2 inches (63 mm). d. Adhesive: Recommended by hanger manufacturer. Product with demonstrated capability to bond insulation hanger securely to substrates indicated without damaging insulation, hangers, and substrates. Self-Sticking-Base Insulation Hangers: Baseplate welded to projecting spindle that is capable of holding insulation, of thickness indicated, securely in position indicated when self-locking washer is in place. Comply with the following requirements: Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS a. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: 1) | AGM Industries, Inc.; Tactoo Self-Adhering Insul-Hangers. 2) GEMCO; Peel & Press. 3) Midwest Fasteners, Inc.; Self Stick. b. Baseplate: Galvanized carbon-steel sheet, 0.030 inch (0.76 mm) thick by 2 inches (50 mm) square. c. Spindle: Stainless steel, fully annealed, 0.106-inch- (2.6-mm-) diameter shank, length to suit depth of insulation indicated. d. Adhesive-backed base with a peel-off protective cover. 4. Insulation-Retaining Washers: Self-locking washers formed from 0.016-inch- (0.41-mm- ) thick, stainless-steel sheet, with beveled edge sized as required to hold insulation securely in place but not less than 1-1/2 inches (38 mm) in diameter. a. Products: Subject to compliance with requirements, provide one of the following available products that may be incorporated into the Work include, but are not limited to, the following: 1) AGM Industries, Inc.; RC-150. 2) | GEMCO; R-150. 3) Midwest Fasteners, Inc.; WA-150. 4) Nelson Stud Welding; Speed Clips. b. Protect ends with capped self-locking washers incorporating a spring steel insert to ensure permanent retention of cap in exposed locations. 5. Nonmetal Insulation-Retaining Washers: Self-locking washers formed from 0.016-inch- (0.41-mm-) thick nylon sheet, with beveled edge sized as required to hold insulation securely in place but not less than 1-1/2 inches (38 mm) in diameter. a. Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1) GEMCO. 2) Midwest Fasteners, Inc. C. — Staples: Outward-clinching insulation staples, nominal 3/4-inch- (19-mm-) wide, stainless steel or Monel. D. Wire: 0.062-inch (1.6-mm) soft-annealed, galvanized steel. 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. C & F Wire. Page 8 0114 Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE I RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.9 CORNER ANGLES PVC Corer Angles: 30 mils (0.8 mm) thick, minimum 1 by 1 inch (25 by 25 mm), PVC according to ASTM D 1784, Class 16354-C. White or color-coded to match adjacent surface. Aluminum Corner Angles: 0.040 inch (1.0 mm) thick, minimum 1 by 1 inch (25 by 25 mm), aluminum according to ASTM B 209 (ASTM B 209M), Alloy 3003, 3005, 3105, or 5005; Temper H-14. PART 3 - EXECUTION 3.1 A. 3.2 a ma mH 9 PREPARATION Surface Preparation: Clean and dry surfaces to receive insulation. Remove materials that will adversely affect insulation application. GENERAL INSTALLATION REQUIREMENTS Install insulation materials, accessories, and finishes with smooth, straight, and even surfaces; free of voids throughout the length of ducts and fittings. Install insulation materials, vapor barriers or retarders, jackets, and thicknesses required for each item of duct system as specified in insulation system schedules. Install accessories compatible with insulation materials and suitable for the service. Install accessories that do not corrode, soften, or otherwise attack insulation or jacket in either wet or dry state. Install insulation with longitudinal seams at top and bottom of horizontal runs. Install multiple layers of insulation with longitudinal and end seams staggered. Keep insulation materials dry during application and finishing. Install insulation with tight longitudinal seams and end joints. Bond seams and joints with adhesive recommended by insulation material manufacturer. Install insulation with least number of joints practical. Where vapor barrier is indicated, seal joints, seams, and penetrations in insulation at hangers, supports, anchors, and other projections with vapor-barrier mastic. 1. Install insulation continuously through hangers and around anchor attachments. 2. For insulation application where vapor barriers are indicated, extend insulation on anchor legs from point of attachment to supported item to point of attachment to structure. Taper and seal ends at attachment to structure with vapor-barrier mastic. Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.3 Jaredia 3. Install insert materials and install insulation to tightly join the insert. Seal insulation to insulation inserts with adhesive or sealing compound recommended by insulation material manufacturer. Apply adhesives, mastics, and sealants at manufacturer's recommended coverage rate and wet and dry film thicknesses. Install insulation with factory-applied jackets as follows: 1. Draw jacket tight and smooth. 2. Cover circumferential joints with 3-inch- (75-mm-) wide strips, of same material as insulation jacket. Secure strips with adhesive and outward clinching staples along both edges of strip, spaced 4 inches (100 mm) o.c. 3. Overlap jacket longitudinal seams at least 1-1/2 inches (38 mm). Clean and dry surface to receive self-sealing lap. Staple laps with outward clinching staples along edge at 2 inches (50 mm) o.c. a. For below ambient services, apply vapor-barrier mastic over staples. 4. Cover joints and seams with tape, according to insulation material manufacturer's written instructions, to maintain vapor seal. 5. Where vapor barriers are indicated, apply vapor-barrier mastic on seams and joints and at ends adjacent to duct flanges and fittings. Cut insulation in a manner to avoid compressing insulation more than 75 percent of its nominal thickness. Finish installation with systems at operating conditions. Repair joint separations and cracking due to thermal movement. Repair damaged insulation facings by applying same facing material over damaged areas. Extend patches at least 4 inches (100 mm) beyond damaged areas. Adhere, staple, and seal patches similar to butt joints. PENETRATIONS Insulation Installation at Roof Penetrations: Install insulation continuously through roof penetrations. 1. Seal penetrations with flashing sealant. 2. For applications requiring only indoor insulation, terminate insulation above roof surface and seal with joint sealant. For applications requiring indoor and outdoor insulation, install insulation for outdoor applications tightly joined to indoor insulation ends. Seal joint with joint sealant. 3. Extend jacket of outdoor insulation outside roof flashing at least 2 inches (50 mm) below top of roof flashing. 4. Seal jacket to roof flashing with flashing sealant. Insulation Installation at Aboveground Exterior Wall Penetrations: Install insulation continuously through wall penetrations. 1. Seal penetrations with flashing sealant. n Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A —- 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.4 2. For applications requiring only indoor insulation, terminate insulation inside wall surface and seal with joint sealant. For applications requiring indoor and outdoor insulation, install insulation for outdoor applications tightly joined to indoor insulation ends. Seal joint with joint sealant. 3. Extend jacket of outdoor insulation outside wall flashing and overlap wall flashing at least 2 inches (50 mm). 4. Seal jacket to wall flashing with flashing sealant. Insulation Installation at Interior Wall and Partition Penetrations (That Are Not Fire Rated): Install insulation continuously through walls and partitions. Insulation Installation at Fire-Rated Wall and Partition Penetrations: Terminate insulation at fire damper sleeves for fire-rated wall and partition penetrations. Externally insulate damper sleeves to match adjacent insulation and overlap duct insulation at least 2 inches (SO mm). 1. Comply with requirements in Division 07 for firestopping and fire-resistive joint sealers. Insulation Installation at Floor Penetrations: l. Duct: For penetrations through fire-rated assemblies, terminate insulation at fire damper sleeves and externally insulate damper sleeve beyond floor to match adjacent duct insulation. Overlap damper sleeve and duct insulation at least 2 inches (50 mm). 2. Seal penetrations through fire-rated assemblies. Comply with requirements in Division 07 for firestopping and fire-resistive joint sealers.” INSTALLATION OF MINERAL-FIBER INSULATION Blanket Insulation Installation on Ducts and Plenums: Secure with adhesive and insulation pins. 1. Apply adhesives according to manufacturer's recommended coverage rates per unit area, for 100 percent coverage of duct and plenum surfaces. 2. Apply adhesive to entire circumference of ducts and to all surfaces of fittings and transitions. 3. Install either capacitor-discharge-weld pins and speed washers or cupped-head, capacitor- discharge-weld pins on sides and bottom of horizontal ducts and sides of vertical ducts as follows: a. On duct sides with dimensions 18 inches (450 mm) and smaller, place pins along longitudinal centerline of duct. Space 3 inches (75 mm) maximum from insulation end joints, and 16 inches (400 mm) o.c. b. On duct sides with dimensions larger than 18 inches (450 mm), place pins 16 inches (400 mm) o.c. each way, and 3 inches (75 mm) maximum from insulation joints. Install additional pins to hold insulation tightly against surface at cross bracing. Pins may be omitted from top surface of horizontal, rectangular ducts and plenums. Do not overcompress insulation during installation. Impale insulation over pins and attach speed washers. Cut excess portion of pins extending beyond speed washers or bend parallel with insulation surface. Cover exposed pins and washers with tape matching insulation facing. >Aean Jaredian Design Group SECTION 23 07 13 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS For ducts and plenums with surface temperatures below ambient, install a continuous unbroken vapor barrier. Create a facing lap for longitudinal seams and end joints with insulation by removing 2 inches (50 mm) from one edge and one end of insulation segment. Secure laps to adjacent insulation section with 1/2-inch (13-mm) outward- clinching staples, 1 inch (25 mm) o.c. Install vapor barrier consisting of factory- or field- applied jacket, adhesive, vapor-barrier mastic, and sealant at joints, seams, and protrusions. a. Repair punctures, tears, and penetrations with tape or mastic to maintain vapor- barrier seal. b. Install vapor stops for ductwork and plenums operating below 50 deg F (10 deg C) at 18-foot (5.5-m) intervals. Vapor stops shall consist of vapor-barrier mastic applied in a Z-shaped pattern over insulation face, along butt end of insulation, and over the surface. Cover insulation face and surface to be insulated a width equal to two times the insulation thickness, but not less than 3 inches (75 mm). Overlap unfaced blankets a minimum of 2 inches (50 mm) on longitudinal seams and end joints. At end joints, secure with steel bands spaced a maximum of 18 inches (450 mm) 0.C. Install insulation on rectangular duct elbows and transitions with a full insulation section for each surface. Install insulation on round and flat-oval duct elbows with individually mitered gores cut to fit the elbow. Insulate duct stiffeners, hangers, and flanges that protrude beyond insulation surface with 6-inch- (150-mm-) wide strips of same material used to insulate duct. Secure on alternating sides of stiffener, hanger, and flange with pins spaced 6 inches (150 mm) o.c. B. _ Board Insulation Installation on Ducts and Plenums: Secure with adhesive and insulation pins. I. 2. 3. Apply adhesives according to manufacturer's recommended coverage rates per unit area, for 100 percent coverage of duct and plenum surfaces. Apply adhesive to entire circumference of ducts and to all surfaces of fittings and transitions. Install either capacitor-discharge-weld pins and speed washers or cupped-head, capacitor- discharge-weld pins on sides and bottom of horizontal ducts and sides of vertical ducts as follows: a. On duct sides with dimensions 18 inches (450 mm) and smaller, place pins along longitudinal centerline of duct. Space 3 inches (75 mm) maximum from insulation end joints, and 16 inches (400 mm) o.c. b. On duct sides with dimensions larger than 18 inches (450 mm), space pins 16 inches (400 mm) o.c. each way, and 3 inches (75 mm) maximum from insulation joints. Install additional pins to hold insulation tightly against surface at cross bracing. c. Pins may be omitted from top surface of horizontal, rectangular ducts and plenums. d. Do not overcompress insulation during installation. e. Cut excess portion of pins extending beyond speed washers or bend parallel with insulation surface. Cover exposed pins and washers with tape matching insulation facing. For ducts and plenums with surface temperatures below ambient, install a continuous unbroken vapor barrier. Create a facing lap for longitudinal seams and end joints with insulation by removing 2 inches (50 mm) from one edge and one end of insulation Jaredian Design Group SECTION 23 0713 — DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.5 3.6 Jaredia segment. Secure laps to adjacent insulation section with 1/2-inch (13-mm) outward- clinching staples, 1 inch (25 mm) o.c. Install vapor barrier consisting of factory- or field- applied jacket, adhesive, vapor-barrier mastic, and sealant at joints, seams, and protrusions. a. Repair punctures, tears, and penetrations with tape or mastic to maintain vapor- barrier seal. b. Install vapor stops for ductwork and plenums operating below 50 deg F (10 deg C) at 18-foot (5.5-m) intervals. Vapor stops shall consist of vapor-barrier mastic applied in a Z-shaped pattern over insulation face, along butt end of insulation, and over the surface. Cover insulation face and surface to be insulated a width equal to two times the insulation thickness, but not less than 3 inches (75 mm). 5. Install insulation on rectangular duct elbows and transitions with a full insulation section for each surface. Groove and score insulation to fit as closely as possible to outside and inside radius of elbows. Install insulation on round and flat-oval duct elbows with individually mitered gores cut to fit the elbow. 6. Insulate duct stiffeners, hangers, and flanges that protrude beyond insulation surface with 6-inch- (150-mm-) wide strips of same material used to insulate duct. Secure on alternating sides of stiffener, hanger, and flange with pins spaced 6 inches (150 mm) o.c. FINISHES Insulation with ASJ or Other Paintable Jacket Material: Paint jacket with paint system identified below and as specified in Division 09. I. Flat Acrylic Finish: Two finish coats over a primer that is compatible with jacket material and finish coat paint. Add fungicidal agent to render fabric mildew proof. a. Finish Coat Material: Interior, flat, latex-emulsion size. Color: Final color as selected by Architect. Vary first and second coats to allow visual inspection of the completed Work. FIELD QUALITY CONTROL Perform tests and inspections. Tests and Inspections: 1. Inspect ductwork, randomly selected by Architect, by removing field-applied jacket and insulation in layers in reverse order of their installation. Extent of inspection shall be limited to one location(s) for each duct system defined in the “Duct Insulation Schedule, General” Article. All insulation applications will be considered defective Work if sample inspection reveals noncompliance with requirements. n Design Group SECTION 23 07 13 - DUCT INSULATION GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A -— 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.7 DUCT INSULATION SCHEDULE, GENERAL A. — Plenums and Ducts Requiring Insulation: 1. Indoor, concealed supply air. B. Items Not Insulated: 1. 2. Metal ducts with duct liner of sufficient thickness to comply with energy code and ASHRAE/IESNA 90.1. Factory-insulated flexible ducts. Factory-insulated plenums and casings. Flexible connectors. Vibration-control devices. Factory-insulated access panels and doors. MANY 3.8 INDOOR DUCT AND PLENUM INSULATION SCHEDULE A. Concealed, Supply-Air and Return-Air Duct and Plenum Insulation: Mineral-fiber blanket, 1-1/2” inches (50 mm) thick and 1.0-Ib/cu. ft. (16-kg/cu. m) nominal density R-6. END OF SECTION Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 SUMMARY A. _ This Section includes refrigerant piping used for air-conditioning applications. 1.2 PERFORMANCE REQUIREMENTS A. Line Test Pressure for Refrigerant R-410A: I. Suction Lines for Air-Conditioning Applications: 185 psig (1276 kPa). 2. Hot-Gas and Liquid Lines: 325 psig (2241 kPa). 1.3 ACTION SUBMITTALS A. Product Data: For each type of valve and refrigerant piping specialty indicated. Include pressure drop based on manufacturer's test data. B. Shop Drawings: Show layout of refrigerant piping and specialties, including pipe, tube, and fitting sizes, flow capacities, valve arrangements and locations, slopes of horizontal runs, oil traps, double risers, wall and floor penetrations, and equipment connection details. Show interface and spatial relationships between piping and equipment. I. Refrigerant piping indicated on Drawings is schematic only. Size piping and design actual piping layout, including oil traps, double risers, specialties, and pipe and tube sizes to accommodate, as a minimum, equipment provided, elevation difference between compressor and evaporator, and length of piping to ensure proper operation and compliance with warranties of connected equipment. 1.4 INFORMATIONAL SUBMITTALS A. Field quality-control test reports. 1.5 CLOSEOUT SUBMITTALS A. Operation and maintenance data. 1.6 QUALITY ASSURANCE A. Comply with ASHRAE 15, "Safety Code for Refrigeration Systems." B. Comply with ASME B31.5, "Refrigeration Piping and Heat Transfer Components." Page 1 0f 10 Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 1.7 PART 2 2.1 5 O BD Pp 2.2 PRODUCT STORAGE AND HANDLING Store piping in a clean and protected area with end caps in place to ensure that piping interior and exterior are clean when installed. - PRODUCTS COPPER TUBE AND FITTINGS Copper Tube: ASTM B 280, Type ACR. Wrought-Copper Fittings: ASME B16.22. Wrought-Copper Unions: ASME B16.22. Solder Filler Metals: ASTM B 32. Use 95-5 tin antimony or alloy HB solder to join copper socket fittings on copper pipe. Brazing Filler Metals: AWS A5.8. Flexible Connectors: 1. Body: Tin-bronze bellows with woven, flexible, tinned-bronze-wire-reinforced protective jacket. 2. End Connections: Socket ends. 3. Offset Performance: Capable of minimum 3/4-inch (20-mm) misalignment in minimum 7-inch- (180-mm-) long assembly. 4. Pressure Rating: Factory test at minimum 500 psig (3450 kPa). 5 Maximum Operating Temperature: 250 deg F (121 deg C). VALVES AND SPECIALTIES Diaphragm Packless Valves: 1. Body and Bonnet: Forged brass or cast bronze; globe design with straight-through or angle pattern. 2 Diaphragm: Phosphor bronze and stainless steel with stainless-steel spring. 3 Operator: Rising stem and hand wheel. 4. Seat: Nylon. 5. End Connections: Socket, union, or flanged. 6 Working Pressure Rating: 500 psig (3450 kPa). 7 Maximum Operating Temperature: 275 deg F (135 deg C). Packed-Angle Valves: 1 Body and Bonnet: Forged brass or cast bronze. 2. Packing: Molded stem, back seating, and replaceable under pressure. 3 Operator: Rising stem. Jaredian Design Group SECTION 23 23 00 - REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IT RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 4. Seat: Nonrotating, self-aligning polytetrafluoroethylene. 5. Seal Cap: Forged-brass or valox hex cap. 6. End Connections: Socket, union, threaded, or flanged. 7. Working Pressure Rating: 500 psig (3450 kPa). 8. Maximum Operating Temperature: 275 deg F (135 deg C). C. — Check Valves: 1 Body: Ductile iron, forged brass, or cast bronze; globe pattern. 2 Bonnet: Bolted ductile iron, forged brass, or cast bronze; or brass hex plug. 3 Piston: Removable polytetrafluoroethylene seat. 4. Closing Spring: Stainless steel. 5. Manual Opening Stem: Seal cap, plated-steel stem, and graphite seal. 6 End Connections: Socket, union, threaded, or flanged. 7 Maximum Opening Pressure: 0.50 psig (3.4 kPa). 8 Working Pressure Rating: 500 psig (3450 kPa). 9 Maximum Operating Temperature: 275 deg F (135 deg C). D. Service Valves: 1. Body: Forged brass with brass cap including key end to remove core. 2. Core: Removable ball-type check valve with stainless-steel spring. 3. Seat: Polytetrafluoroethylene. 4. End Connections: Copper spring. 5. Working Pressure Rating: 500 psig (3450 kPa). E. Solenoid Valves: Comply with ARI 760 and UL 429; listed and labeled by an NRTL. 1. Body and Bonnet: Plated steel. 2. Solenoid Tube, Plunger, Closing Spring, and Seat Orifice: Stainless steel. 3. Seat: Polytetrafluoroethylene. 4. End Connections: Threaded. 5. Electrical: Molded, watertight coil in NEMA 250 enclosure of type required by location with 1/2-inch (16-GRC) conduit adapter, and 24-V ac coil. 6. Working Pressure Rating: 400 psig (2760 kPa). 7. Maximum Operating Temperature: 240 deg F (116 deg C). 8. Manual operator. F. Safety Relief Valves: Comply with ASME Boiler and Pressure Vessel Code; listed and labeled by an NRTL. 1. Body and Bonnet: Ductile iron and steel, with neoprene O-ring seal. 2. Piston, Closing Spring, and Seat Insert: Stainless steel. 3. Seat Disc: Polytetrafluoroethylene. 4. End Connections: Threaded. 5. Working Pressure Rating: 400 psig (2760 kPa). 6. Maximum Operating Temperature: 240 deg F (116 deg C). G. Thermostatic Expansion Valves: Comply with ARI 750. 1. 2. 3. Body, Bonnet, and Seal Cap: Forged brass or steel. Diaphragm, Piston, Closing Spring, and Seat Insert: Stainless steel. Packing and Gaskets: Non-asbestos. Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS Capillary and Bulb: Copper tubing filled with refrigerant charge. Suction Temperature: 40 deg F (4.4 deg C). Superheat: Adjustable. Reverse-flow option (for heat-pump applications). End Connections: Socket, flare, or threaded union. Working Pressure Rating: 700 psig (4820 kPa). ON AAD H. Straight Type Strainers: Body: Welded steel with corrosion-resistant coating. Screen: 100-mesh stainless steel. End Connections: Socket or flare. Working Pressure Rating: 500 psig (3450 kPa). Maximum Operating Temperature: 275 deg F (135 deg C). PWN I. Angle-Type Strainers: Body: Forged brass or cast bronze. Drain Plug: Brass hex plug. Screen: 100-mesh monel. End Connections: Socket or flare. Working Pressure Rating: 500 psig (3450 kPa). Maximum Operating Temperature: 275 deg F (135 deg C). AWNPwWNS J. Moisture/Liquid Indicators: 1. Body: Forged brass. 2. Window: Replaceable, clear, fused glass window with indicating element protected by filter screen. Indicator: Color coded to show moisture content in ppm. Minimum Moisture Indicator Sensitivity: Indicate moisture above 60 ppm. End Connections: Socket or flare. Working Pressure Rating: 500 psig (3450 kPa). Maximum Operating Temperature: 240 deg F (116 deg C). ANDAR YW K. — Replaceable-Core Filter Dryers: Comply with ARI 730. 1. Body and Cover: Painted-steel shell with ductile-iron cover, stainless-steel screws, and neoprene gaskets. Filter Media: 10 micron, pleated with integral end rings; stainless-steel support. Desiccant Media: Activated alumina. Designed for reverse flow (for heat-pump applications). End Connections: Socket. Access Ports: NPS 1/4 (DN 8) connections at entering and leaving sides for pressure differential measurement. 7. Maximum Pressure Loss: 2 psig (14 kPa). 8. Working Pressure Rating: 500 psig (3450 kPa). 9. Maximum Operating Temperature: 240 deg F (116 deg C). AWPwWY L. Permanent Filter Dryers: Comply with ARI 730. 1. Body and Cover: Painted-steel shell. 2. Filter Media: 10 micron, pleated with integral end rings; stainless-steel support. Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS M. 2.3 A. B. PART 3 3.1 A. B. C. D. Desiccant Media: Activated alumina. Designed for reverse flow (for heat-pump applications). End Connections: Socket. Access Ports: NPS 1/4 (DN 8) connections at entering and leaving sides for pressure differential measurement. Maximum Pressure Loss: 2 psig (14 kPa). Working Pressure Rating: 500 psig (3450 kPa). Maximum Operating Temperature: 240 deg F (116 deg C). AMY eo aon Liquid Accumulators: Comply with ARI 495. 1. | Body: Welded steel with corrosion-resistant coating. 2. End Connections: Socket or threaded. 3. Working Pressure Rating: 500 psig (3450 kPa). 4. Maximum Operating Temperature: 275 deg F (135 deg C). REFRIGERANTS Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Atofina Chemicals, Inc. 2. DuPont Company; Fluorochemicals Div. 3. Honeywell, Inc.; Genetron Refrigerants. 4. INEOS Fluor Americas LLC. R-410a. - EXECUTION PIPING APPLICATIONS Suction Lines NPS 1-1/2 (DN 40) and Smaller for Conventional Air-Conditioning Applications: Copper, Type ACR, annealed-temper tubing and wrought-copper fittings with soldered joints. Suction Lines NPS 4 (DN 100) and Smaller for Conventional Air-Conditioning Applications: Copper, Type ACR, drawn-temper tubing and wrought-copper fittings with brazed or soldered joints. Hot-Gas and Liquid Lines: 1. NPS 1-1/2 (DN 40) and Smaller: Copper, Type ACR, annealed-temper tubing and wrought-copper fittings with soldered joints. 2. NPS 1-1/2 (DN 40) and Smaller: Copper, Type ACR, drawn-temper tubing and wrought- copper fittings with soldered joints. Safety-Relief-Valve Discharge Piping: Copper, Type ACR, drawn-temper tubing and wrought- copper fittings with soldered joints. Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.2 3.3 VALVE AND SPECIALTY APPLICATIONS Install diaphragm packless valves in suction and discharge lines of compressor. Install service valves for gage taps at strainers if they are not an integral part of strainers. Install a check valve at the compressor discharge and a liquid accumulator at the compressor suction connection. Except as otherwise indicated, install diaphragm packless valves on inlet and outlet side of filter dryers. Install a full-sized, three-valve bypass around filter dryers. Install solenoid valves upstream from each expansion valve. Install solenoid valves in horizontal lines with coil at top. Install thermostatic expansion valves as close as possible to distributors on evaporators. 1. Install valve so diaphragm case is warmer than bulb. 2. Secure bulb to clean, straight, horizontal section of suction line using two bulb straps. Do not mount bulb in a trap or at bottom of the line. 3. If external equalizer lines are required, make connection where it will reflect suction-line pressure at bulb location. Install safety relief valves where required by ASME Boiler and Pressure Vessel Code. Pipe safety-relief-valve discharge line to outside according to ASHRAE 15. Install moisture/liquid indicators in liquid line at the inlet of the thermostatic expansion valve or at the inlet of the evaporator coil capillary tube. Install strainers upstream from and adjacent to the following unless they are furnished as an integral assembly for device being protected: l. Solenoid valves. 2. Thermostatic expansion valves. 3. Compressor. Install filter dryers in liquid line between compressor and thermostatic expansion valve, and in the suction line at the compressor. Install flexible connectors at compressors. PIPING INSTALLATION 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 Shop Drawings. Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS m Oo mf aml Install refrigerant piping according to ASHRAE 15. Install piping in concealed locations unless otherwise indicated and except in equipment rooms and service areas. 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. Install piping above accessible ceilings to allow sufficient space for ceiling panel removal. Install piping adjacent to machines to allow service and maintenance. Install piping free of sags and bends. Install fittings for changes in direction and branch connections. Select system components with pressure rating equal to or greater than system operating pressure. Refer to Section 230900 "Instrumentation and Control for HVAC" and Section 23 09 93 "Sequence and Operations for HVAC Controls" for solenoid valve controllers, control wiring, and sequence of operation. Install piping as short and direct as possible, with a minimum number of joints, elbows, and fittings. Arrange piping to allow inspection and service of refrigeration equipment. Install valves and specialties in accessible locations to allow for service and inspection. Install access doors or panels as specified in Section 08 31 13 "Access Doors and Frames" if valves or equipment requiring maintenance is concealed behind finished surfaces. Install refrigerant piping in protective conduit where installed belowground. Install refrigerant piping in rigid or flexible conduit in locations where exposed to mechanical injury. Slope refrigerant piping as follows: 1. Install horizontal hot-gas discharge piping with a uniform slope downward away from compressor. 2. Install horizontal suction lines with a uniform slope downward to compressor. 3. Install traps and double risers to entrain oil in vertical runs. 4 Liquid lines may be installed level. When brazing or soldering, remove solenoid-valve coils and sight glasses; also remove valve stems, seats, and packing, and accessible internal parts of refrigerant specialties. Do not apply heat near expansion-valve bulb. Jaredian Design Group SECTION 23 23 00 - REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.4 3.5 Install piping with adequate clearance between pipe and adjacent walls and hangers or between pipes for insulation installation. Identify refrigerant piping and valves according to Section 23 05 53 "Identification for HVAC Piping and Equipment.” Install sleeves for piping penetrations of walls, ceilings, and floors. Comply with requirements for sleeves specified in Section 23 05 17 "Sleeves and Sleeve Seals for HVAC Piping." Install sleeve seals for piping penetrations of concrete walls and slabs. Comply with requirements for sleeve seals specified in Section 2305 17 "Sleeves and Sleeve Seals for HVAC Piping.” Install escutcheons for piping penetrations of walls, ceilings, and floors. Comply with requirements for escutcheons specified in Section 23 05 18 "Escutcheons for HVAC Piping." PIPE JOINT CONSTRUCTION Soldered Joints: Construct joints according to ASTM B 828 or CDA's "Copper Tube Handbook." Brazed Joints: Construct joints according to AWS's "Brazing Handbook," Chapter "Pipe and Tube." 1. Use Type BcuP, copper-phosphorus alloy for joining copper socket fittings with copper pipe. 2. Use Type BAg, cadmium-free silver alloy for joining copper with bronze or steel. HANGERS AND SUPPORTS Hanger, support, and anchor products are specified in Section 23 05 29 "Hangers and Supports for HVAC Piping and Equipment." Install the following pipe attachments: 1. Adjustable steel clevis hangers for individual horizontal runs less than 20 feet (6 m) long. 2. Roller hangers and spring hangers for individual horizontal runs 20 feet (6 m) or longer. 3. Pipe Roller: MSS SP-58, Type 44 for multiple horizontal piping 20 feet (6 m) or longer, supported on a trapeze. 4. Spring hangers to support vertical runs. 5 Copper-clad hangers and supports for hangers and supports in direct contact with copper pipe. Install hangers for copper tubing with the following maximum spacing and minimum rod sizes: 1. NPS 1/2 (DN 15): Maximum span, 60 inches (1500 mm); minimum rod size, 1/4 inch (6.4 mm). 2. NPS 5/8 (DN 18): Maximum span, 60 inches (1500 mm); minimum rod size, 1/4 inch (6.4 mm). Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3. NPS 1 (DN 25): Maximum span, 72 inches (1800 mm); minimum rod size, 1/4 inch (6.4 mm). 4. NPS 1-1/4 (DN 32): Maximum span, 96 inches (2400 mm); minimum rod size, 3/8 inch (9.5 mm). 5. NPS 1-1/2 (DN 40): Maximum span, 96 inches (2400 mm); minimum rod size, 3/8 inch (9.5 mm). D. Support multifloor vertical runs at least at each floor. 3.6 FIELD QUALITY CONTROL A. — Perform tests and inspections and prepare test reports. B. _ Tests and Inspections: 1. Comply with ASME B31.5, Chapter VI. 2. Test refrigerant piping and specialties. Isolate compressor, condenser, evaporator, and safety devices from test pressure if they are not rated above the test pressure. 3. Test high- and low-pressure side piping of each system separately at not less than the pressures indicated in Part 1 "Performance Requirements” Article. a. Fill system with nitrogen to the required test pressure. b. System shall maintain test pressure at the manifold gage throughout duration of test. c. Test joints and fittings with electronic leak detector or by brushing a small amount of soap and glycerin solution over joints. d. Remake leaking joints using new materials, and retest until satisfactory results are achieved. 3.7 SYSTEM CHARGING A. Charge system using the following procedures: 1. Install core in filter dryers after leak test but before evacuation. 2. Evacuate entire refrigerant system with a vacuum pump to 500 micrometers (67 Pa). If vacuum holds for 12 hours, system is ready for charging. 3. Break vacuum with refrigerant gas, allowing pressure to build up to 2 psig (14 kPa). 4. Charge system with a new filter-dryer core in charging line. 3.8 ADJUSTING A. Adjust thermostatic expansion valve to obtain proper evaporator superheat. B. Adjust high- and low-pressure switch settings to avoid short cycling in response to fluctuating suction pressure. C. Adjust set-point temperature of air-conditioning or chilled-water controllers to the system design temperature. Jaredian Design Group SECTION 23 23 00 — REFRIGERANT PIPING GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS D. ‘Perform the following adjustments before operating the refrigeration system, according to manufacturer's written instructions: Open shutoff valves in condenser water circuit. Verify that compressor oil level is correct. Open compressor suction and discharge valves. Open refrigerant valves except bypass valves that are used for other purposes. Check open compressor-motor alignment and verify lubrication for motors and bearings. WP wD > E. Replace core of replaceable filter dryer after system has been adjusted and after design flow rates and pressures are established. END OF SECTION Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 A. 1.2 1.3 Page 10f13 SUMMARY Section Includes: Rectangular ducts and fittings. Round ducts and fittings. Sheet metal materials. Sealants and gaskets. Hangers and supports. ARwWN > Related Sections: 1. Section 23 05 93 "Testing, Adjusting, and Balancing for HVAC" for testing, adjusting, and balancing requirements for metal ducts. 2. Section 23 33 00 "Air Duct Accessories" for dampers, sound-control devices, duct- mounting access doors and panels, turning vanes, and flexible ducts. PERFORMANCE REQUIREMENTS Delegated Duct Design: Duct construction, including sheet metal thicknesses, seam and joint construction, reinforcements, and hangers and supports, shall comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible” and performance requirements and design criteria indicated in "Duct Schedule” Article. Structural Performance: Duct hangers and supports shall withstand the effects of gravity loads and stresses within limits and under conditions described in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible". Airstream Surfaces: Surfaces in contact with the airstream shall comply with requirements in ASHRAE 62.1. ACTION SUBMITTALS Product Data: For each type of product indicated. Shop Drawings: 1. Fabrication, assembly, and installation, including plans, elevations, sections, components, and attachments to other work. Factory- and shop-fabricated ducts and fittings. Duct layout indicating sizes, configuration, and static-pressure classes. Elevation of top of ducts. Dimensions of main duct runs from building grid lines. Fittings. Reinforcement and spacing. Seam and joint construction. SAINAMRWND Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 1.4 15 PART 2 2.1 A. 9. Penetrations through fire-rated and other partitions. 10. Equipment installation based on equipment being used on Project. 11. Locations for duct accessories, including dampers, turning vanes, and access doors and panels. 12. Hangers and supports, including methods for duct and building attachment and vibration isolation. INFORMATIONAL SUBMITTALS Coordination Drawings: Plans, drawn to scale, on which the following items are shown and coordinated with each other, using input from installers of the items involved: 1. Duct installation in congested spaces, indicating coordination with general construction, building components, and other building services. Indicate proposed changes to duct layout. ; Suspended ceiling components. Structural members to which duct will be attached. Size and location of initial access modules for acoustical tile. Penetrations of smoke barriers and fire-rated construction. Items penetrating finished ceiling including the following: AW RYN Lighting fixtures. Air outlets and inlets. Speakers. Sprinklers. Access panels. Fire alarm devices. monogs QUALITY ASSURANCE ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section 5 - "Systems and Equipment" and Section 7 - "Construction and System Start-up." ASHRAE/IESNA = Compliance: Applicable requirements in ASHRAE/IESNA 90.1, Section 6.4.4 - "HVAC System Construction and Insulation." - PRODUCTS RECTANGULAR DUCTS AND FITTINGS General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" based on indicated static-pressure class unless otherwise indicated. Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 2-1, "Rectangular Duct/Transverse Joints," for static-pressure class, applicable sealing requirements, materials involved, duct- Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IT RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.2 support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." Longitudinal Seams: Select seam types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 2-2, "Rectangular Duct/Longitudinal Seams," for static-pressure class, applicable sealing requirements, materials involved, duct- support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." Elbows, Transitions, Offsets, Branch Connections, and Other Duct Construction: Select types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Chapter 4, "Fittings and Other Construction," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." ROUND DUCTS AND FITTINGS General Fabrication Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Chapter 3, “Round, Oval, and Flexible Duct," based on indicated static-pressure class unless otherwise indicated. 1. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: Lindab Inc. McGill AirFlow LLC. SEMCO Incorporated. Sheet Metal Connectors, Inc. Spiral Manufacturing Co., Inc. enor Transverse Joints: Select joint types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-1, "Round Duct Transverse Joints," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." 1. Transverse Joints in Ducts Larger Than 60 Inches (1524 mm) in Diameter: Flanged. Longitudinal Seams: Select seam types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-2, "Round Duct Longitudinal Seams," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." 1. Fabricate round ducts larger Than 90 inches (2286 mm) in diameter with butt-welded longitudinal seams. Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U.S. VIRGIN ISLANDS 2.3 2.4 Tees and Laterals: Select types and fabricate according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-5, "90 Degree Tees and Laterals," and Figure 3-6, "Conical Tees," for static-pressure class, applicable sealing requirements, materials involved, duct-support intervals, and other provisions in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." SHEET METAL MATERIALS General Material Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for acceptable materials, material thicknesses, and duct construction methods unless otherwise indicated. Sheet metal materials shall be free of pitting, seam marks, roller marks, stains, discolorations, and other imperfections. Galvanized Sheet Steel: Comply with ASTM A 653/A 653M. 1. Galvanized Coating Designation: G60 (Z180). 2. Finishes for Surfaces Exposed to View: Mill phosphatized. Stainless-Steel Sheets: Comply with ASTM A 480/A 480M, Type 304 or 316, as indicated in the "Duct Schedule" Article; cold rolled, annealed, sheet. Exposed surface finish shall be No. 2B, No. 2D, No. 3, or No. 4 as indicated in the "Duct Schedule” Article. Tie Rods: Galvanized steel, 1/4-inch (6-mm) minimum diameter for lengths 36 inches (900 mm) or less; 3/8-inch (10-mm) minimum diameter for lengths longer than 36 inches (900 mm). SEALANT AND GASKETS General Sealant and Gasket Requirements: Surface-burning characteristics for sealants and gaskets shall be a maximum flame-spread index of 25 and a maximum smoke-developed index of 50 when tested according to UL 723; certified by an NRTL. Two-Part Tape Sealing System: 1. Tape: Woven cotton fiber impregnated with mineral gypsum and modified acrylic/silicone activator to react exothermically with tape to form hard, durable, airtight seal. 2. Tape Width: 3 inches (76 mm). 3. Sealant: Modified styrene acrylic. 4. Water resistant. 5. Mold and mildew resistant. 6. Maximum Static-Pressure Class: 10-inch wg (2500 Pa), positive and negative. 7. Service: Indoor and outdoor. 8. Service Temperature: Minus 40 to plus 200 deg F (Minus 40 to plus 93 deg C). 9. Substrate: Compatible with galvanized sheet steel (both PVC coated and bare), stainless steel, or aluminum. ’ For indoor applications, sealant shall have a VOC content of 250 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). od Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IT RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.5 Page 5 0113 11. Sealant shall comply with the testing and product requirements of the California Department of Health Services’ "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." Water-Based Joint and Seam Sealant: Application Method: Brush on. Solids Content: Minimum 65 percent. Shore A Hardness: Minimum 20. Water resistant. Mold and mildew resistant. VOC: Maximum 75 g/L (less water). Maximum Static-Pressure Class: 10-inch wg (2500 Pa), positive and negative. Service: Indoor or outdoor. Substrate: Compatible with galvanized sheet steel (both PVC coated and bare), stainless steel, or aluminum sheets. CeENAMPWN- Flanged Joint Sealant: Comply with ASTM C 920. 1. General: Single-component, acid-curing, silicone, elastomeric. 2. Type: S. 3. Grade: NS. 4. Class: 25. 5. Use: O. 6. For indoor applications, sealant shall have a VOC content of 250 g/L or less when calculated according to 40 CFR 59, Subpart D (EPA Method 24). 7. Sealant shall comply with the testing and product requirements of the California Department of Health Services' "Standard Practice for the Testing of Volatile Organic Emissions from Various Sources Using Small-Scale Environmental Chambers." Flange Gaskets: Butyl rubber, neoprene, or EPDM polymer with polyisobutylene plasticizer. Round Duct Joint O-Ring Seals: 1. Seal shall provide maximum leakage class of 3 cfm/100 sq. ft. at 1-inch wg (0.14 L/s per sq.m) and shall be rated forl0-inch wg (2500-Pa) static-pressure class, positive or negative. 2. EPDM O-ring to seal in concave bead in coupling or fitting spigot. 3. Double-lipped, EPDM O-ring seal, mechanically fastened to factory-fabricated couplings and fitting spigots. HANGERS AND SUPPORTS Hanger Rods for Noncorrosive Environments: Cadmium-plated steel rods and nuts. Hanger Rods for Corrosive Environments: Electrogalvanized, all-thread rods or galvanized rods with threads painted with zinc-chromate primer after installation. Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS Strap and Rod Sizes: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Table 5-1 (Table 5-1M), "Rectangular Duct Hangers Minimum Size," and Table 5-2, "Minimum Hanger Sizes for Round Duct." Steel Cables for Galvanized-Steel Ducts: Galvanized steel complying with ASTM A 603. Steel Cables for Stainless-Steel Ducts: Stainless steel complying with ASTM A 492. Steel Cable End Connections: Cadmium-plated steel assemblies with brackets, swivel, and bolts designed for duct hanger service; with an automatic-locking and clamping device. Duct Attachments: Sheet metal screws, blind rivets, or self-tapping metal screws; compatible with duct materials. Trapeze and Riser Supports: 1. Supports for Galvanized-Steel Ducts: Galvanized-steel shapes and plates. 2. Supports for Stainless-Steel Ducts: Stainless-steel shapes and plates. PART 3 - EXECUTION 3.1 A. H. DUCT INSTALLATION Drawing plans, schematics, and diagrams indicate general location and arrangement of duct system. Indicated duct locations, configurations, and arrangements were used to size ducts and calculate friction loss for air-handling equipment sizing and for other design considerations. Install duct systems as indicated unless deviations to layout are approved on Shop Drawings and Coordination Drawings. Install ducts according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" unless otherwise indicated. Install round ducts in maximum practical lengths. Install ducts with fewest possible joints. Install factory- or shop-fabricated fittings for changes in direction, size, and shape and for branch connections. Unless otherwise indicated, install ducts vertically and horizontally, and parallel and perpendicular to building lines. Install ducts close to walls, overhead construction, columns, and other structural and permanent enclosure elements of building. Install ducts with a clearance of 1 inch (25 mm), plus allowance for insulation thickness. Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.2 3.3 Route ducts to avoid passing through transformer vaults and electrical equipment rooms and enclosures. Where ducts pass through non-fire-rated interior partitions and exterior walls and are exposed to view, cover the opening between the partition and duct or duct insulation with sheet metal flanges of same metal thickness as the duct. Overlap openings on four sides by at least 1-1/2 inches (38 mm). Where ducts pass through fire-rated interior partitions and exterior walls, install fire dampers. Comply with requirements in Section 23 3300 "Air Duct Accessories" for fire and smoke dampers. Protect duct interiors from moisture, construction debris and dust, and other foreign materials. Comply with SMACNA's "IAQ Guidelines for Occupied Buildings Under Construction," Appendix G, "Duct Cleanliness for New Construction Guidelines." INSTALLATION OF EXPOSED DUCTWORK Protect ducts exposed in finished spaces from being dented, scratched, or damaged. Trim duct sealants flush with metal. Create a smooth and uniform exposed bead. Do not use two-part tape sealing system. Grind welds to provide smooth surface free of burrs, sharp edges, and weld splatter. When welding stainless steel with a No. 3 or 4 finish, grind the welds flush, polish the exposed welds, and treat the welds to remove discoloration caused by welding. Maintain consistency, symmetry, and uniformity in the arrangement and fabrication of fittings, hangers and supports, duct accessories, and air outlets. Repair or replace damaged sections and finished work that does not comply with these requirements. DUCT SEALING Seal ducts for duct static-pressure, seal classes, and leakage classes specified in "Duct Schedule” Article according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible.” Seal ducts to the following seal classes according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible”: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible." Outdoor, Supply-Air Ducts: Seal Class A. Outdoor, Exhaust Ducts: Seal Class C. Outdoor, Return-Air Ducts: Seal Class C. Unconditioned Space, Supply-Air Ducts in Pressure Classes 2-Inch wg (500 Pa) and Lower: Seal Class B. Mw wWN > Jaredian Design Group SECTION 23 3113 - METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.4 3.5 6. Unconditioned Space, Supply-Air Ducts in Pressure Classes Higher Than 2-Inch wg (500 Pa): Seal Class A. Unconditioned Space, Exhaust Ducts: Seal Class C. Unconditioned Space, Return-Air Ducts: Seal Class B. 9. Conditioned Space, Supply-Air Ducts in Pressure Classes 2-Inch wg (500 Pa) and Lower: Seal Class C. 10. Conditioned Space, Supply-Air Ducts in Pressure Classes Higher Than 2-Inch wg (500 Pa): Seal Class B. 11. Conditioned Space, Exhaust Ducts: Seal Class B. 12. Conditioned Space, Return-Air Ducts: Seal Class C. oo I HANGER AND SUPPORT INSTALLATION Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Chapter 5, “Hangers and Supports." Building Attachments: Concrete inserts, powder-actuated fasteners, or structural-steel fasteners appropriate for construction materials to which hangers are being attached. 1. Where practical, install concrete inserts before placing concrete. . Install powder-actuated concrete fasteners after concrete is placed and completely cured. 3. Use powder-actuated concrete fasteners for standard-weight aggregate concretes or for slabs more than 4 inches (100 mm) thick. 4. Do not use powder-actuated concrete fasteners for lightweight-aggregate concretes or for slabs less than 4 inches (100 mm) thick. 5. Do not use powder-actuated concrete fasteners for seismic restraints. Hanger Spacing: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Table 5-1 (Table 5-1M), "Rectangular Duct Hangers Minimum Size," and Table 5-2, "Minimum Hanger Sizes for Round Duct,” for maximum hanger spacing; install hangers and supports within 24 inches (610 mm) of each elbow and within 48 inches (1200 mm) of each branch intersection. Hangers Exposed to View: Threaded rod and angle or channel supports. Support vertical ducts with steel angles or channel secured to the sides of the duct with welds, bolts, sheet metal screws, or blind rivets; support at each floor and at a maximum intervals of 16 feet (5 m). Install upper attachments to structures. Select and size upper attachments with pull-out, tension, and shear capacities appropriate for supported loads and building materials where used. CONNECTIONS Make connections to equipment with flexible connectors complying with Section 23 33 00 "Air Duct Accessories." Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS B. Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for branch, outlet and inlet, and terminal unit connections. 3.6 DUCT CLEANING A. Clean new and existing duct system(s) before testing, adjusting, and balancing. B. _ Use service openings for entry and inspection. 1. 2. 3 Create new openings and install access panels appropriate for duct static-pressure class if required for cleaning access. Provide insulated panels for insulated or lined duct. Patch insulation and liner as recommended by duct liner manufacturer. Comply with Section 23 33 00 "Air Duct Accessories" for access panels and doors. Disconnect and reconnect flexible ducts as needed for cleaning and inspection. Remove and reinstall ceiling to gain access during the cleaning process. C. Particulate Collection and Odor Control: 1. 2. When venting vacuuming system inside the building, use HEPA filtration with 99.97 percent collection efficiency for 0.3-micron-size (or larger) particles. When venting vacuuming system to outdoors, use filter to collect debris removed from HVAC system, and locate exhaust downwind and away from air intakes and other points of entry into building. D. Clean the following components by removing surface contaminants and deposits: 1. 5. 6. 7 Air outlets and inlets (registers, grilles, and diffusers). Supply, return, and exhaust fans including fan housings, plenums (except ceiling supply and return plenums), scrolls, blades or vanes, shafts, baffles, dampers, and drive assemblies. Air-handling unit internal surfaces and components including mixing box, coil section, air wash systems, spray eliminators, condensate drain pans, humidifiers and dehumidifiers, filters and filter sections, and condensate collectors and drains. Coils and related components. Return-air ducts, dampers, actuators, and turning vanes except in ceiling plenums and mechanical equipment rooms. Supply-air ducts, dampers, actuators, and turning vanes. Dedicated exhaust and ventilation components and makeup air systems. E. Mechanical Cleaning Methodology: 1. 2. Clean metal duct systems using mechanical cleaning methods that extract contaminants from within duct systems and remove contaminants from building. Use vacuum-collection devices that are operated continuously during cleaning. Connect vacuum device to downstream end of duct sections so areas being cleaned are under negative pressure. Use mechanical agitation to dislodge debris adhered to interior duct surfaces without damaging integrity of metal ducts, duct liner, or duct accessories. Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 3.7 3.8 4. Clean fibrous-glass duct liner with HEPA vacuuming equipment; do not permit duct liner to get wet. Replace fibrous-glass duct liner that is damaged, deteriorated, or delaminated or that has friable material, mold, or fungus growth. 5. Clean coils and coil drain pans according to NADCA 1992. Keep drain pan operational. Rinse coils with clean water to remove latent residues and cleaning materials; comb and straighten fins. 6. Provide drainage and cleanup for wash-down procedures. 7. Antimicrobial Agents and Coatings: Apply EPA-registered antimicrobial agents if fungus is present. Apply antimicrobial agents according to manufacturer's written instructions after removal of surface deposits and debris. START UP Air Balance: Comply with requirements in Section 230593 "Testing, Adjusting, and Balancing for HVAC." DUCT SCHEDULE Fabricate ducts with galvanized sheet steel except as otherwise indicated and as follows: 1, Laboratory exhaust ductwork: Stainless steel. Supply Ducts: 1. Ducts Connected to Constant-Volume Air-Handling Units: Pressure Class: Positive 2-inch wg (500 Pa). Minimum SMACNA Seal Class: A. SMACNA Leakage Class for Rectangular: 6. SMACNA Leakage Class for Round and Flat Oval: 6. ao of Return Ducts: 1. Ducts Connected to Air-Handling Units: a. Pressure Class: Positive or negative 2-inch wg (500 Pa). b. Minimum SMACNA Seal Class: A. Cc. SMACNA Leakage Class for Rectangular: 6. d. SMACNA Leakage Class for Round and Flat Oval: 6. Exhaust Ducts: 1. Ducts Connected to Fans Exhausting (ASHRAE 62.1, Class 1 and 2) Air: a. Pressure Class: Negative 2-inch wg (500 Pa). b. Minimum SMACNA Seal Class: A if negative pressure, and A if positive pressure. c. SMACNA Leakage Class for Rectangular: 12. Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS d. SMACNA Leakage Class for Round and Flat Oval: 6. 2. Ducts Connected to Fans Exhausting Laboratory and Process (ASHRAE 62.1, Class 3 and 4) Air: a. Type 304, stainless-steel sheet. b. Pressure Class: Positive or negative 3-inch wg (750 Pa). Cc. Minimum SMACNA Seal Class: Welded seams, joints, and penetrations. d. SMACNA Leakage Class: 3. E. Outdoor-Air (Not Filtered, Heated, or Cooled) Ducts: 1. Ducts Connected to Air-Handling Units: Pressure Class: Positive or negative 2-inch wg (500 Pa). Minimum SMACNA Seal Class: A. SMACNA Leakage Class for Rectangular: 6. SMACNA Leakage Class for Round and Flat Oval: 3. ao of F. Intermediate Reinforcement: 1. Galvanized-Steel Ducts: Galvanized steel. 2. Stainless-Steel Ducts: a. Exposed to Airstream: Match duct material. b. Not Exposed to Airstream: Match duct material. G. — Elbow Configuration: 1. Rectangular Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-2, "Rectangular Elbows." a. Velocity 1000 fpm (5 m/s) or Lower: 1) Radius Type RE 1 with minimum 0.5 radius-to-diameter ratio. 2) Mitered Type RE 4 without vanes. b. Velocity 1000 to 1500 fpm (5 to 7.6 m/s): 1) Radius Type RE | with minimum 1.0 radius-to-diameter ratio. 2) Radius Type RE3 with minimum 0.5 radius-to-diameter ratio and two vanes. 3) Mitered Type RE 2 with vanes complying with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-3, "Vanes and Vane Runners," and Figure 4-4, "Vane Support in Elbows." c. Velocity 1500 fpm (7.6 m/s) or Higher: Page 11 0f 13 Jaredian Design Group SECTION 23 31 13 — METAL DUCTS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS H. 1) — Radius Type RE 1 with minimum 1.5 radius-to-diameter ratio. 2) Radius Type RE3 with minimum 1.0 radius-to-diameter ratio and two vanes. 3) Mitered Type RE 2 with vanes complying with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-3, "Vanes and Vane Runners," and Figure 4-4, "Vane Support in Elbows." Rectangular Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 4-2, "Rectangular Elbows.” a. Radius Type RE | with minimum 1.5 radius-to-diameter ratio. b. Radius Type RE 3 with minimum 1.0 radius-to-diameter ratio and two vanes. c. Mitered Type RE2 with vanes complying with SMACNA's “HVAC Duct Construction Standards - Metal and Flexible," Figure 4-3, "Vanes and Vane Runners," and Figure 4-4, "Vane Support in Elbows." Round Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-4, "Round Duct Elbows." a. Minimum Radius-to-Diameter Ratio and Elbow Segments: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Table 3- 1, "Mitered Elbows." Elbows with less than 90-degree change of direction have proportionately fewer segments. 1) Velocity 1000 fpm (5 m/s) or Lower: 0.5 radius-to-diameter ratio and three segments for 90-degree elbow. 2) Velocity 1000 to 1500 fpm (5 to 7.6 m/s): 1.0 radius-to-diameter ratio and four segments for 90-degree elbow. 3) Velocity 1500 fpm (7.6 m/s) or Higher: 1.5 radius-to-diameter ratio and five segments for 90-degree elbow. 4) Radius-to Diameter Ratio: 1.5. b. Round Elbows, 12 Inches (305 mm) and Smaller in Diameter: Stamped or pleated. Cc. Round Elbows, 14 Inches (356 mm) and Larger in Diameter: Standing seam. Branch Configuration: 1. Rectangular Duct: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible,” Figure 4-6, "Branch Connection." a. Rectangular Main to Rectangular Branch: 45-degree entry. b. Rectangular Main to Round Branch: Spin in. Round: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible," Figure 3-5, "90 Degree Tees and Laterals," and Figure 3-6, "Conical Tees.” Saddle taps are permitted in existing duct. a. Velocity 1000 fpm (5 m/s) or Lower: 90-degree tap. Jaredian Design Group SECTION 23 3113 — METAL DUCTS GOVERNMENT OF THE JU. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U.S. VIRGIN ISLANDS b. Velocity 1000 to 1500 fpm (5 to 7.6 m/s): Conical tap. c. Velocity 1500 fpm (7.6 m/s) or Higher: 45-degree lateral. END OF SECTION Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 SUMMARY A, Section Includes: Backdraft and pressure relief dampers. Manual volume dampers. Control dampers. Fire dampers. Flange connectors. Turning vanes. Duct-mounted access doors. Flexible connectors. Flexible ducts. Duct accessory hardware. Be PANAMA YN 2 B. Related Requirements: 1. Section 23 31 13 "Metal Ducts. 1.2 ACTION SUBMITTALS A. Product Data: For each type of product. B. Shop Drawings: For duct accessories. Include plans, elevations, sections, details and attachments to other work. 1, Detail duct accessories fabrication and installation in ducts and other construction. Include dimensions, weights, loads, and required clearances; and method of field assembly into duct systems and other construction. Include the following: Special fittings. Manual volume damper installations. Control-damper installations. Fire-damper installations, including sleeves; and duct-mounted access doors. Wiring Diagrams: For power, signal, and control wiring. eo AO oP 1.3 CLOSEOUT SUBMITTALS A. Operation and maintenance data. PART 2 - PRODUCTS 2.1 ASSEMBLY DESCRIPTION A. | Comply with NFPA 90A, "Installation of Air Conditioning and Ventilating Systems," and with NFPA 90B, "Installation of Warm Air Heating and Air Conditioning Systems." Page 1 0f10 Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.2 2.3 moo ™ Q Page 2 0f 10 Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible" for acceptable materials, material thicknesses, and duct construction methods unless otherwise indicated. Sheet metal materials shall be free of pitting, seam marks, roller marks, stains, discolorations, and other imperfections. MATERIALS Galvanized Sheet Steel: Comply with ASTM A 653/A 653M. 1. Galvanized Coating Designation: G60 (Z180). 2. Exposed-Surface Finish: Mill phosphatized. Stainless-Steel Sheets: Comply with ASTM A 480/A 480M, Type 304, and having a No. 2 finish. Aluminum Sheets: Comply with ASTM B 209 (ASTM B 209M), Alloy 3003, Temper H14; with mill finish for concealed ducts and standard, 1-side bright finish for exposed ducts. Extruded Aluminum: Comply with ASTM B 221! (ASTM B 221M), Alloy 6063, Temper T6. Reinforcement Shapes and Plates: Galvanized-steel reinforcement where installed on galvanized sheet metal ducts; compatible materials for aluminum and stainless-steel ducts. Tie Rods: Galvanized steel, 1/4-inch (6-mm) minimum diameter for lengths 36 inches (900 mm) or less; 3/8-inch (10-mm) minimum diameter for lengths longer than 36 inches (900 mm). BACKDRAFT AND PRESSURE RELIEF DAMPERS Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Air Balance Inc.; a division of Mestek, Inc. 2. American Warming and Ventilating; a division of Mestek, Inc. 3. Greenheck Fan Corporation. 4. Nailor Industries Inc. 5. Pottorff. 6. Ruskin Company. Description: Gravity balanced. Maximum Air Velocity: 2000 fpm (10 m/s). Maximum System Pressure: 3-inch wg (0.8 kPa). Frame: Hat-shaped, 0.09-inch- (2.4-mm-) thick extruded aluminum, with welded corners or mechanically attached. Blades: Multiple single-piece blades, end pivoted, maximum 6-inch (150-mm) width, 0.050- inch- (1.2-mm-) thick extruded aluminum with sealed edges. Blade Action: Parallel. Blade Seals: Extruded vinyl, mechanically locked. Jaredian Design Group SECTION 23 33 00 - AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS arn = 2.4 Blade Axles: 1. Material: Galvanized steel. 2. Diameter: 0.20 inch (5 mm). Tie Bars and Brackets: Aluminum. Return Spring: Adjustable tension. Bearings: synthetic pivot bushings. Accessories: 1. Adjustment device to permit setting for varying differential static pressure. 2. Counterweights and spring-assist kits for vertical airflow installations. 3. 90-degree stops. MANUAL VOLUME DAMPERS Standard, Steel, Manual Volume Dampers: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: a. Air Balance Inc.; a division of Mestek, Inc. b. American Warming and Ventilating; a division of Mestek, Inc. c. Flexmaster U.S.A., Inc. d. McGill AirFlow LLC. e. Nailor Industries Inc. f. Pottorff. g. Ruskin Company. 2. Standard leakage rating, with linkage outside airstream. 3. Suitable for horizontal or vertical applications. 4. Frames: a. Frame: Hat-shaped, 0.094-inch- (2.4-mm-) thick, galvanized sheet steel. b. Mitered and welded corners. Cc. Flanges for attaching to walls and flangeless frames for installing in ducts. 5. Blades: a. Multiple or single blade. b. Parallel- or opposed-blade design. c. Stiffen damper blades for stability. d. Galvanized-steel, 0.064 inch (1.62 mm) thick. Blade Axles: Galvanized steel. Bearings: ma Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A —- 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.5 a. Molded synthetic. b. Dampers in ducts with pressure classes of 3-inch wg (750 Pa) or less shall have axles full length of damper blades and bearings at both ends of operating shaft. 8. Tie Bars and Brackets: Galvanized steel. Jackshaft: 1. Size: 0.5-inch (13-mm) diameter. 2. Material: Galvanized-steel pipe rotating within pipe-bearing assembly mounted on supports at each mullion and at each end of multiple-damper assemblies. 3. Length and Number of Mountings: As required to connect linkage of each damper in multiple-damper assembly. Damper Hardware: 1. Zinc-plated, die-cast core with dial and handle made of 3/32-inch- (2.4-mm-) thick zinc- plated steel, and a 3/4-inch (19-mm) hexagon locking nut. 2. Include center hole to suit damper operating-rod size. 3. Include elevated platform for insulated duct mounting. CONTROL DAMPERS Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. American Warming and Ventilating; a division of Mestek, Inc. 2. Arrow United Industries; a division of Mestek, Inc. 3. Greenheck Fan Corporation. 4. Nailor Industries Inc. 5. Pottorff. 6. Ruskin Company. 7. Young Regulator Company. Frames: 1. Hat shaped. 2. 0.125-inch- (3-mm-) thick aluminum. Blades: 1. Multiple blade with maximum blade width of 6 inches (152 mm). 2. Parallel- and opposed-blade design. 3. Aluminum. 4. 0.0747-inch- (1.9-mm-) thick dual skin. 5. Blade Edging: Closed-cell neoprene. Blade Axles: 1/2-inch- (13-mm-) diameter; stainless steel; blade-linkage hardware of zinc- plated steel and brass; ends sealed against blade bearings. Jaredian Design Group SECTION 23 33 00 - AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.6 O 1. Operating Temperature Range: From minus 40 to plus 200 deg F (minus 40 to plus 93 deg C). Bearings: l. Molded synthetic. Dampers in ducts with pressure classes of 3-inch wg (750 Pa) or less shall have axles full length of damper blades and bearings at both ends of operating shaft. 3. Thrust bearings at each end of every blade. FIRE DAMPERS Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Air Balance Inc.; a division of Mestek, Inc. 2. Greenheck Fan Corporation. 3. Nailor Industries Inc. 4. Pottorff. 5. Ruskin Company. Type: Dynamic; rated and labeled according to UL 555 by an NRTL. Closing rating in ducts up to 4-inch wg (1-kPa) static pressure class and minimum 2000-fpm (10-m/s) velocity. Fire Rating: 1-1/2 and 3 hours. Frame: Curtain type with blades outside airstream and Multiple-blade type; fabricated with roll-formed, 0.034-inch- (0.85-mm-) thick galvanized steel; with mitered and interlocking comers. Mounting Sleeve: Factory- or field-installed, galvanized sheet steel. 1. Minimum Thickness: 20 gage thick, as indicated, and of length to suit application. Exception: Omit sleeve where damper-frame width permits direct attachment of perimeter mounting angles on each side of wall or floor; thickness of damper frame must comply with sleeve requirements. Mounting Orientation: Vertical or horizontal as indicated. Blades: Roll-formed, interlocking, 0.024-inch- (0.61-mm) thick, galvanized sheet steel. In place of interlocking blades, use full-length, 0.034-inch- (0.85-mm-) thick, galvanized-steel blade connectors. Horizontal Dampers: Include blade lock and stainless-steel closure spring. Heat-Responsive Device: Replaceable, 165 deg F (74 deg C) rated, fusible links. Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A —- 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.7 2.8 2.9 FLANGE CONNECTORS Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Ductmate Industries, Inc. 2. Nexus PDQ; Division of Shilco Holdings Inc. 3. Ward Industries, Inc.; a division of Hart & Cooley, Inc. Description: Add-on or roll-formed, factory-fabricated, slide-on transverse flange connectors, gaskets, and components. Material: Galvanized steel. Gage and Shape: Match connecting ductwork. TURNING VANES Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Ductmate Industries, Inc. 2. Duro Dyne Inc. 3. Elgen Manufacturing. 4. METALAIRE, Inc. Manufactured Turning Vanes for Metal Ducts: Curved blades of galvanized sheet steel; support with bars perpendicular to blades set; set into vane runners suitable for duct mounting. 1. Acoustic Turning Vanes: Fabricate airfoil-shaped aluminum extrusions with perforated faces and fibrous-glass fill. General Requirements: Comply with SMACNA's "HVAC Duct Construction Standards - Metal and Flexible"; Figures 4-3, "Vanes and Vane Runners," and 4-4, "Vane Support in Elbows." Vane Construction: Double wall. DUCT-MOUNTED ACCESS DOORS Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: American Warming and Ventilating; a division of Mestek, Inc. Ductmate Industries, Inc. Flexmaster U.S.A., Inc. Greenheck Fan Corporation. McGill AirFlow LLC. Nailor Industries Inc. Pottorff. NAMB WN > Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.10 2) Duct-Mounted Access Doors: Fabricate access panels according to SMACNA's "HVAC Duct Construction Standards - Metal and Flexible"; Figures 7-2 (7-2M), “Duct Access Doors and Panels," and 7-3, "Access Doors - Round Duct." 1. Door: a. Double wall, rectangular. b. Galvanized sheet metal with insulation fill and thickness as indicated for duct pressure class. c. Vision panel. d. Hinges and Latches: 1-by-1-inch (25-by-25-mm)butt or piano hinge and cam latches. e. Fabricate doors airtight and suitable for duct pressure class. 2. Frame: Galvanized sheet steel, with bend-over tabs and foam gaskets. 3: Number of Hinges and Locks: a. Access Doors Less Than 12 Inches (300 mm) Square: No hinges and two sash locks. b. Access Doors up to 18 Inches (460 mm) Square: Continuous and two sash locks. C. Access Doors up to 24 by 48 Inches (600 by 1200 mm): Three hinges and two compression latches. d. Access Doors Larger Than 24 by 48 Inches (600 by 1200 mm): Four hinges and two compression latches with outside and inside handles. FLEXIBLE CONNECTORS Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Ductmate Industries, Inc. 2. Duro Dyne Inc. 3. Elgen Manufacturing. Materials: Flame-retardant or noncombustible fabrics. Coatings and Adhesives: Comply with UL 181, Class 1. Metal-Edged Connectors: Factory fabricated with a fabric strip 3-1/2 inches (89 mm) wide attached to two strips of 2-3/4-inch- (70-mm-) wide, 0.028-inch- (0.7-mm-) thick, galvanized sheet steel or 0.032-inch- (0.8-mm-) thick aluminum sheets. Provide metal compatible with connected ducts. Indoor System, Flexible Connector Fabric: Glass fabric double coated with neoprene. 1. Minimum Weight: 26 oz./sq. yd. (880 g/sq. m). Tensile Strength: 480 lbf/inch (84 N/mm) in the warp and 360 Ibf/inch (63 N/mm) in the filling. 3. Service Temperature: Minus 40 to plus 200 deg F (Minus 40 to plus 93 deg C). Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.11 2.12 Outdoor System, Flexible Connector Fabric: Glass fabric double coated with weatherproof, synthetic rubber resistant to UV rays and ozone. 1. Minimum Weight: 24 oz./sq. yd. (810 g/sq. m). 2. Tensile Strength: 530 Ibf/inch (93 N/mm) in the warp and 440 Ibf/inch (77 N/mm) in the filling. 3, Service Temperature: Minus 50 to plus 250 deg F (Minus 45 to plus 121 deg C). FLEXIBLE DUCTS Manufacturers: Subject to compliance with requirements, provide products by one of the following available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following: 1. Flexmaster U.S.A., Inc. 2. McGill AirFlow LLC. 3, Ward Industries, Inc.; a division of Hart & Cooley, Inc. Insulated, Flexible Duct: UL 181, Class 1, aluminum laminate and polyester film with latex adhesive supported by helically wound, spring-steel wire; fibrous-glass insulation; aluminized vapor-barrier film. Pressure Rating: 10-inch wg (2500 Pa) positive and 1.0-inch wg (250 Pa) negative. Maximum Air Velocity: 4000 fpm (20 m/s). Temperature Range: Minus 20 to plus 210 deg F (Minus 29 to plus 99 deg C). Insulation R-value: Comply with ASHRAE/IESNA 90.1, R-6.0 minimum. PYeN> Flexible Duct Connectors: 1. Clamps: Nylon strap in sizes 3 through 18 inches (75 through 460 mm), to suit duct size. 2. Non-Clamp Connectors: Liquid adhesive plus tape. DUCT ACCESSORY HARDWARE Instrument Test Holes: Cast iron or cast aluminum to suit duct material, including screw cap and gasket. Size to allow insertion of pitot tube and other testing instruments and of length to suit duct-insulation thickness. Adhesives: High strength, quick setting, neoprene based, waterproof, and resistant to gasoline and grease. PART 3 - EXECUTION 3.1 A. Page & of 10 INSTALLATION Install duct accessories according to applicable details in SMACNA's "HVAC Duct Construction Standards - Metal and Flexible” for metal ducts. Jaredian Design Group SECTION 23 33 00 — AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IT RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS mam Install duct accessories of materials suited to duct materials; use galvanized-steel accessories in galvanized-steel and fibrous-glass ducts, stainless-steel accessories in stainless-steel ducts, and aluminum accessories in aluminum ducts. Install backdraft and/or control dampers at inlet of exhaust fans or exhaust ducts as close as possible to exhaust fan unless otherwise indicated. Install volume dampers at points on supply, return, and exhaust systems where branches extend from larger ducts. Where dampers are installed in ducts having duct liner, install dampers with hat channels of same depth as liner, and terminate liner with nosing at hat channel. l. Install steel volume dampers in steel ducts. 2. Install aluminum volume dampers in aluminum ducts. Set dampers to fully open position before testing, adjusting, and balancing. Install test holes at fan inlets and outlets and elsewhere as indicated. Install fire and smoke dampers according to UL listing. Install duct access doors on sides of ducts to allow for inspecting, adjusting, and maintaining accessories and equipment at the following locations: On both sides of duct coils. At outdoor-air intakes and mixed-air plenums. At drain pans and seals. Downstream from manual volume dampers, control dampers, backdraft dampers, and equipment. 5. Adjacent to and close enough to fire or smoke dampers, to reset or reinstall fusible links. Access doors for access to fire or smoke dampers having fusible links shall be pressure relief access doors and shall be outward operation for access doors installed upstream from dampers and inward operation for access doors installed downstream from dampers. At each change in direction and at maximum 50-foot (15-m) spacing. Upstream or downstream from duct silencers. Control devices requiring inspection. Elsewhere as indicated. WN CANN Install access doors with swing against duct static pressure. Access Door Sizes: One-Hand or Inspection Access: 8 by 5 inches (200 by 125 mm). Two-Hand Access: 12 by 6 inches (300 by 150 mm). Head and Hand Access: 18 by 10 inches (460 by 250 mm). Head and Shoulders Access: 21 by 14 inches (530 by 355 mm). Body Access: 25 by 14 inches (635 by 355 mm). Body plus Ladder Access: 25 by 17 inches (635 by 430 mm). Label access doors according to Section 230553 "Identification for HVAC Piping and Equipment" to indicate the purpose of access door. AMNBwWN> Install flexible connectors to connect ducts to equipment. Connect terminal units to supply ducts directly or with maximum 12-inch (300-mm) lengths of flexible duct. Do not use flexible ducts to change directions. Jaredian Design Group SECTION 23 33 00 - AIR DUCT ACCESSORIES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE IIT RENOVATION AT 19A — 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS N. Connect diffusers or light troffer boots to ducts with maximum 60-inch (1500-mm) lengths of flexible duct clamped or strapped in place. O. Connect flexible ducts to metal ducts with draw bands. P. Install duct test holes where required for testing and balancing purposes. 3.2 FIELD QUALITY CONTROL A. _ Tests and Inspections: 1. Operate dampers to verify full range of movement. Inspect locations of access doors and verify that purpose of access door can be performed. 3. Inspect turning vanes for proper and secure installation. END OF SECTION Jaredian Design Group SECTION 23 37 13 — DIFFUSERS, REGISTERS AND GRILLES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 SUMMARY A. Section Includes: 1. Rectangular and square ceiling diffusers. 2. Louver face diffusers. 3. Fixed face registers and grilles. B. Related Sections: 1. Division 08 for fixed and adjustable louvers and wall vents, whether or not they are connected to ducts. 2. Section 23 33 00 "Air Duct Accessories" for fire and smoke dampers and volume-control dampers not integral to diffusers, registers, and grilles. 1.2 ACTION SUBMITTALS A. — Product Data: For each type of product indicated, include the following: 1. Data Sheet: Indicate materials of construction, finish, and mounting details; and performance data including throw and drop, static-pressure drop, and noise ratings. 2. Diffuser, Register, and Grille Schedule: Indicate drawing designation, room location, quantity, model number, size, and accessories furnished. B. Samples: For each exposed product and for each color and texture specified. PART 2 - PRODUCTS 2.1 CEILING DIFFUSERS A. — Rectangular and Square Ceiling Diffusers: 1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: a. Carnes. b. Nailor Industries Inc. c. Price Industries. d. Titus. Devices shall be specifically designed for variable-air-volume flows. Material: Aluminum. Finish: Baked enamel, color selected by Architect. Face Size: 24 by 24 inches (600 by 600 mm). Face Style: Three cone. AWRWN Jaredian Design Group SECTION 23 37 13 — DIFFUSERS, REGISTERS AND GRILLES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.2 7. Mounting: T-bar. 8. Pattern: Fixed. Louver Face Diffuser: 1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: a. Carnes. b. Nailor Industries Inc. C. Price Industries. d. Titus. 2. Devices shall be specifically designed for variable-air-volume flows. Material: Aluminum. 4, Finish: Baked enamel, color selected by Architect. Ge REGISTERS AND GRILLES Adjustable Bar Register: 1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: a. Carnes. b. Nailor Industries Inc. Cc. Price Industries. d. Titus. 2. Material: Aluminum. 3. Finish: Baked enamel, color selected by Architect. 4. Mounting: Concealed. Adjustable Bar Grille: 1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: a. Carnes. b. Nailor Industries Inc. Cc. Price Industries. d. Titus. 2. Material: Aluminum. 3. Finish: Baked enamel, color selected by Architect. 4. Mounting: Concealed. Fixed Face Register: 1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: a. Carnes. b Nailor Industries Inc. c. Price Industries. d Titus. Jaredian Design Group SECTION 23 37 13 — DIFFUSERS, REGISTERS AND GRILLES GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2. Material: Aluminum. 3. Finish: Baked enamel, color selected by Architect. 4, Mounting: Concealed. D. Fixed Face Grille: 1. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: a. Carnes. b. Nailor Industries Inc. c. Price Industries. d. Titus. Material: Aluminum. Finish: Baked enamel, color selected by Architect. Face Arrangement: 1/2-by-1/2-by-1/2-inch (13-by-13-by-13-mm) grid core. Mounting: Concealed. wWPRwWD 2.3 SOURCE QUALITY CONTROL A. Verification of Performance: Rate diffusers, registers, and grilles according to ASHRAE 70, "Method of Testing for Rating the Performance of Air Outlets and Inlets." PART 3 - EXECUTION 3.1 INSTALLATION A. _ Install diffusers, registers, and grilles level and plumb. B. —_Ceiling-Mounted Outlets and Inlets: Drawings indicate general arrangement of ducts, fittings, and accessories. Air outlet and inlet locations have been indicated to achieve design requirements for air volume, noise criteria, airflow pattern, throw, and pressure drop. Make final locations where indicated, as much as practical. For units installed in lay-in ceiling panels, locate units in the center of panel. Where architectural features or other items conflict with installation, notify Architect for a determination of final location. C. Install diffusers, registers, and grilles with airtight connections to ducts and to allow service and maintenance of dampers, air extractors, and fire dampers. 3.2 ADJUSTING A. After installation, adjust diffusers, registers, and grilles to air patterns indicated, or as directed, before starting air balancing. END OF SECTION Page 3 of3 Jaredian Design Group SECTION 23 8126 — SPLIT-SYSTEM AIR-CONDITIONERS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 1 - GENERAL 1.1 A. 1.2 1.3 14 1.5 1.6 SUMMARY Section includes split-system air-conditioning and heat-pump units consisting of separate evaporator-fan and compressor-condenser components. ACTION SUBMITTALS Product Data: For each type of product indicated. Shop Drawings: Include plans, elevations, sections, details, and attachments to other work. 1. Detail equipment assemblies and indicate dimensions, weights, loads, required clearances, method of field assembly, components, and location and size of each field connection. INFORMATIONAL SUBMITTALS Warranty: Sample of special warranty. CLOSEOUT SUBMITTALS Operation and maintenance data. QUALITY ASSURANCE Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application. ASHRAE Compliance: 1. Fabricate and label refrigeration system to comply with ASHRAE 15, "Safety Standard for Refrigeration Systems." 2. ASHRAE Compliance: Applicable requirements in ASHRAE 62.1, Section4 - "Outdoor Air Quality," Section 5 - "Systems and Equipment,” Section 6 - " Procedures," and Section 7 - "Construction and System Start-up." ASHRAE/IESNA Compliance: Applicable requirements in ASHRAE/IESNA 90.1. WARRANTY Special Warranty: Manufacturer's standard form in which manufacturer agrees to repair or replace components of split-system air-conditioning units that fail in materials or workmanship within specified warranty period. 1. Warranty Period: a. For Compressor: Five year(s) from date of Substantial Completion. b. For Parts: One year(s) from date of Substantial Completion. c. For Labor: One year(s) from date of Substantial Completion. Jaredian Design Group SECTION 23 81 26 — SPLIT-SYSTEM AIR-CONDITIONERS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 2 - PRODUCTS 2.1 MANUFACTURERS A. Basis-of-Design Product: Subject to compliance with requirements, provide product indicated on Drawings or comparable product by one of the following: WP WH Carrier Corporation; Home Comfort and HVAC Building & Industrial Systems. Daiken Air Conditioning Company. Mitsubishi Electric & Electronics USA, Inc.; HVAC Advanced Products Division. Trane; a business of American Standard companies. YORK; a Johnson Controls company. 2.2 INDOOR UNITS (5 TONS (18 kW) OR LESS) A. —_ Wall-Mounted, Evaporator-Fan Components: 1. Cabinet: Plastic or enameled steel with removable panels on front and ends in color selected by Architect, and discharge drain pans with drain connection. Refrigerant Coil: Copper tube, with mechanically bonded aluminum fins and thermal- expansion valve. Comply with ARI 210/240. Fan: Direct drive, centrifugal. Fan Motors: a. Comply with NEMA designation, temperature rating, service factor, enclosure type, and efficiency requirements specified in Section 23 05 13 "Common Motor Requirements for HVAC Equipment." b. Multitapped, multispeed with internal thermal protection and permanent lubrication. Enclosure Type: Totally enclosed, fan cooled. NEMA Premium (TM) efficient motors as defined in NEMA MG 1. e. Controllers, Electrical Devices, and Wiring: Comply with requirements for electrical devices and connections specified in electrical Sections. a Airstream Surfaces: Surfaces in contact with the airstream shall comply with requirements in ASHRAE 672.1. Condensate Drain Pans: a. Fabricated with one percent slope in at least two planes to collect condensate from cooling coils (including coil piping connections, coil headers, and return bends) and humidifiers, and to direct water toward drain connection. b. Drain Connection: Located at lowest point of pan and sized to prevent overflow. Terminate with threaded nipple on both ends of pan. Air Filtration Section: a. General Requirements for Air Filtration Section: 1) Comply with NFPA 90A. 2) Minimum Arrestance: According to ASHRAE 52.1 and MERV according to ASHRAE 52.2. Jaredian Design Group SECTION 23 8126 — SPLIT-SYSTEM AIR-CONDITIONERS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS 2.3 2.4 E. 3) Filter-Holding Frames: Arranged for flat or angular orientation, with access doors on both sides of unit. Filters shall be removable from one side or lifted out from access plenum. b. Permanent, cleanable filters. OUTDOOR UNITS (5 TONS (18 kW) OR LESS) Air-Cooled, Compressor-Condenser Components: 1. Casing: Steel, finished with baked enamel in color selected by Architect, with removable panels for access to controls, weep holes for water drainage, and mounting holes in base. Provide brass service valves, fittings, and gage ports on exterior of casing. 2. Compressor: Hermetically sealed with crankcase heater and mounted on vibration isolation device. Compressor motor shall have thermal- and current-sensitive overload devices, start capacitor, relay, and contactor. a. Compressor Type: Scroll. b. Two-speed compressor motor with manual-reset high-pressure switch and automatic-reset low-pressure switch. c. Refrigerant Charge: R-410A. d. Refrigerant Coil: Copper tube, with mechanically bonded aluminum fins and liquid subcooler. Comply with ARI 210/240. 3. Heat-Pump Components: Reversing valve and low-temperature-air cutoff thermostat. 4. Fan: Aluminum-propeller type, directly connected to motor. 5. Motor: Permanently lubricated, with integral thermal-overload protection. 6. Low Ambient Kit: Permits operation down to 45 deg F (7 deg C). 7. Mounting Base: Polyethylene. ACCESSORIES Control equipment and sequence of operation are specified in Section 23 09 00 "Instrumentation and Control for HVAC" and Section 23 09 93 "Sequence and Operations for HVAC Controls.” Thermostat: Wired infrared functioning to remotely control compressor and evaporator fan, with the following features: 1. Compressor time delay. 2. 24-hour time control of system stop and start. 3. Liquid-crystal display indicating temperature, set-point temperature, time setting, operating mode, and fan speed. 4. Fan-speed selection including auto setting. Automatic-reset timer to prevent rapid cycling of compressor. Refrigerant Line Kits: Soft-annealed copper suction and liquid lines factory cleaned, dried, pressurized, and sealed; factory-insulated suction line with flared fittings at both ends. Drain Hose: For condensate. Jaredian Design Group SECTION 23 81 26 — SPLIT-SYSTEM AIR-CONDITIONERS GOVERNMENT OF THE U. S. VIRGIN ISLANDS: OFFICE OF THE GOVERNOR PHASE II RENOVATION AT 19A - 20 KONGENS GADE ST. THOMAS, U. S. VIRGIN ISLANDS PART 3 - EXECUTION 3.1 INSTALLATION A. Install units level and plumb. B. Install evaporator-fan components using manufacturer's standard mounting devices securely fastened to building structure. C. Install roof-mounted, compressor-condenser components on equipment supports specified in Section 07 and Drawings. Anchor units to supports with removable, cadmium-plated fasteners. D. Install and connect precharged refrigerant tubing to component's quick-connect fittings. Install tubing to allow access to unit. 3.2 CONNECTIONS A. Piping installation requirements are specified in other Sections. Drawings indicate general arrangement of piping, fittings, and specialties. B. Where piping is installed adjacent to unit, allow space for service and maintenance of unit. 3.3 FIELD QUALITY CONTROL A. Perform tests and inspections. 1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components, assemblies, and equipment installations, including connections, and to assist in testing. B. _ Tests and Inspections: 1. Leak Test: After installation, charge system and test for leaks. Repair leaks and retest until no leaks exist. 2. Operational Test: After electrical circuitry has been energized, start units to confirm proper motor rotation and unit operation. 3. Test and adjust controls and safeties. Replace damaged and malfunctioning controls and equipment. C. Remove and replace malfunctioning units and retest as specified above. D. Prepare test and inspection reports. 3.4 DEMONSTRATION A. Train Owner's maintenance personnel to adjust, operate, and maintain units. END OF SECTION Jaredian Design Group