SECTION 0888 00

Dynamic Glass

GENERAL

1.0SUMMARY

  1. Section includes:
  2. Dynamic glass
  3. Controls and wiring for dynamic glass system
  4. Controls programming of dynamic glass system
  5. Installation and commissioning of dynamic glass system

The glazing contractor shall provide anintegrated installation inclusive of dynamic glass, installation of wiring and controls for same (low voltage contractor to be part of glazing contractor team), programming of dynamic glass controls, and commissioning of dynamic glass system. Glazing contractor responsibility ends after successful commissioning of this system.

delete sections not in project. add sections as necessary.

  1. Related Sections:
  2. Division 8 – Openings
  3. Division 25 - Integrated Automation
  4. Division 26 - Electrical
  5. Section 26 09 00 – Instrumentation and Control for Electrical System
  1. DEFINITIONS
  2. Fenestration: Openings in building's envelope including windows, doors, and skylights.
  3. Framing System: Basic rigid supporting structure of window.
  4. Glazing System: Soft material used in framing system.
  5. Bite: Dimension by which edge of glass product is engaged into glazing channel.
  6. Busbar: Thin strip of metal that conducts electricity. Used to apply voltage across the electrochromicsurface of the IGU.
  7. CxA - The Commissioning Authority: The owners designated person, or company responsible for coordinating the commissioning teams to implement the dynamic glass system.
  8. IGU: Insulating Glass Unit.
  9. IGU Pigtail: Wire that extends from individual dynamic insulating glass units.
  10. WC: Window Controller. Control module for dynamic glass.
  11. IGU Array: Group of IGUs connected to one Window Controller.
  12. IGU Cable (one per IGU): Wire that runs through framing system and connects oneIGU pigtail to one Window Controller.
  13. IGU Splitter(one per two IGUs): Splitter that connects two IGU pigtails together.
  14. Control Sensor: Allows automated control of dynamic glass.
  15. Wall Switch: Manual Override Switch. This can either be placed on the window frame or is wall mounted.
  16. Zone Controller: Controller that sends one voltage signal to multiple Window Controllers.
  17. Controls Integrated in Shop: For in-shop glazed units, in addition to dynamic glass, control components like WC, various cables, wall switch, control sensor, etc., can be integratedinto the framing system by the glazier. This is the recommended method to ensure higher quality product and lower install cost and complexity.
  18. Controls Integrated in Field: For in-field glazed units, control components like WC, various cables, wall switch, control sensor, etc.,need to be integrated into the framing system/building envelope by others.
  19. Inboard Lite: Pane of IGU that faces interior of building.
  20. Outboard Lite: Pane of IGU that faces exterior of building.
  21. 2-ply Laminated Glass: 2-sheets of monolithic glass bonded together with plastic interlayer by heat and pressure.
  22. Laminate Inner-Ply: Glass pane in laminated glass construction that faces exterior of building.
  23. Laminate Outer-Ply: Glass pane in laminated glass construction that faces interior of building.
  24. Performance Characteristics:
  25. Center-of-Glass Characteristics: Performance values that take only center portion of IGU into account and not framing members.
  26. Fenestration Performance: Performance based on total fenestration (glass and framing members). Values that can be validated and certified by National Fenestration Rating Council (NFRC).
  27. Insulating Glass Unit Surfaces and Coating Orientation:
  28. Surface 1: Exterior surface of outer pane.
  29. Surface 2: Interior surface of outer pane.
  30. Surface 3: Exterior surface of inner pane.
  31. Surface 4: Room side surface of inner pane.
  32. Tinted: On state, with lowest visible light transmission.
  33. Clear: Off state, with highest visible light transmission.
  34. SYSTEM DESCRIPTION
  35. Design Requirements:
  36. Dynamic insulating glass units shall be operated by the dynamic glass manufacturer’scontrol system.
  37. Framing and Glazing Systems (framing and glazing not provided by dynamic glass manufacturer)
  38. Designed to accommodate IGU components below:
  39. Edge clearance: 1/4 inch (6 mm)
  40. Bite clearance: 5/8 inch (16 mm)
  41. Face clearance: 3/16 inch (5 mm)
  42. Accommodate controls wiring.
  43. Has glazing materials that are compatible with materials of dynamic glassIGU.
  44. Provide glazing and framing systems capable of withstanding normal thermal movements, wind loads, and impact loads, without failure including loss due to defective manufacture, fabrication, and installation, deterioration of glazing materials, and other defects in construction.

a.Normal Thermal Movement: Resulting from ambient temperature range of 120 degrees F (67 degrees C) and from consequent temperature range within glass and glass framing members of 180 degrees F (100 degrees C).

b.Deterioration of Laminated Glass: Development of manufacturing defects including edge separation or delamination that materially obstructs vision through glass.

  1. Framing system must be approved for compatibility by dynamic glass manufacturer.
  1. Provide glass products in thicknesses and strengths (annealed or heat-treated) required to meet or exceed the following criteria based on project loads and in-service conditions per ASTM E1300.
  2. Select minimum thickness of glass products to ensure probability of failure does not exceed the following:

a.8 breaks per 1000 for glass installed vertically or not over 15 degrees or more from vertical plan and under wind action.

b.1 break per 1000 for glass installed 15 degrees or more from vertical plane and under action of wind, snow, or both.

  1. “Provide designated 110v – 240v circuit, feed to power supply, label panel and circuit at both panel and power supply.”
  1. SUBMITTALS
  2. Product Data: Manufacturer's product data sheets including installation instructions.
  3. Samples: Submit manufacturer’s dynamic sample that reflects the two end states (no intermediate states).
  4. Shop Drawings (provided by others): Indicate framing system and accommodations for cables, components, cable routing, location of connectors, and exit from framing system.
  5. QUALITY ASSURANCE
  6. Base Glass Materials. All base glass materials used in the fabrication of dynamic glass manufacturer’s products will meet or exceed the requirements of ASTM International (ASTM) C 1036-06 – Standard Specification for Flat Glass, Type I – Transparent Flat Glass; Class I Clear; Quality - Q3 (cut-size or stock sheets) for the production of architectural glass products including coated, heat treated, laminated, and other select glass products.
  7. Heat-Treated Glass. Glass requiring heat-treatment for greater resistance to mechanical and thermal stresses shall be heat-treated in accordance with and comply with the requirements of ASTM C 1048-04 – Standard Specification for Heat-Treated Flat Glass – Kind HS, Kind FT Coated and Uncoated.
  8. Coated Glass. Manufacturer’s dynamic coated glass products are fabricated to provide compliance with ASTM E2141 - 06 Standard Test Methods for Assessing the Durability of Absorptive Electrochromic Coatings on Sealed Insulating Glass Units; ASTM E 2240 – 06 – Standard Test Method for Assessing the Current Voltage Cycling Stability at 90° C (194° F) of Absorptive Electrochromic Coatings on Sealed Insulating Glass Units; ASTM E 2241 -06 Standard Test Method for Assessing the Current Voltage Cycling Stability at Room Temperature of Absorptive Electrochromic Coatings on Sealed Insulating Glass Units; ASTM E 2354 -10 – Standard Guide for Assessing the Durability of an Absorptive Electrochromic Coating within Sealed Insulating Glass Units; and ASTM E 2355-10 - Standard Test Method for Measuring the Uniformity of an Absorptive Electrochromic Coating on a Glazing Surface; ASTM C 1376 – 10 – Standard Specification for Pyrolytic and Vacuum Deposition Coatings on Flat Glass.

Thermal and optical properties of manufacturer’s dynamic coated glass will be provide to and maintained in accordance with requirement of the International Glazing Database and the National Fenestration Rating Council.

Manufacturer’s sealed insulating glass units may incorporate low-emissivity coated glass products outsourced from other glass manufacturers. Base coated glass supplied by others will meet or exceed the requirements of ASTM C 1376 – 10 – Standard Specification for Pyrolytic and Vacuum Deposition Coatings on Flat Glass.

  1. Laminated Glass. Laminated glass products shall be outsourced from suppliers that fabricate product in accordance with the requirements of ASTM C 1172-09 – Standard Specification for Laminated Architectural Flat Glass.
  2. Insulating Glass. Sealed insulating glass units will be fabricated to meet or exceed the requirements of ASTM E 2188 – 10 – Standard Test Method for Insulating Glass Unit Performance; ASTM E 2189 – 10 – Standard Test Method for Testing Resistance to Fogging in Insulating Glass Units; ASTM E 2190 -10 – Standard Specification for Insulating Glass Unit Performance and Evaluation; Insulating Glass Manufacturers Alliance (IGMA) TB – 1201 – 89 (05) – Sealant Manufacturers Minimum Sealant Dimensions and Placement Survey; and IGMA TM-4000 – 02 – Insulating Glass Manufacturing Quality Procedures Technical Manual.

Sealed insulating glass units fabricated by manufacturerwill be tested and certified in accordance with the highest industry standards as set forth by the Insulating Glass Certification Council (IGCC) and the Insulating Glass Manufacturers Alliance (IGMA) and through such certification recognized by the National Fenestration Rating Council (NFRC).

  1. Safety Glazing Materials. Glass for glazing applications requiring safety glazing materials shall be fully tempered glass or laminated glass which meets American National Standards Institute (ANSI) Z97.1 American National Standard for Safety Glazing Materials Used in Buildings - Safety Performance Specifications Method of Test or the federal safety standard Consumer Product Safety Commission (CPSC) 16 CFR 1201 Safety Standard for Architectural Glazing Materials and shall be marked and labeled accordingly.

Fully tempered glass will be fabricated by dynamic glass manufacturer and certified as a safety glazing material through participation and testing in accordance with the requirements of the Safety Glazing Certification Council (SGCC).

Laminated glass will be outsourced from fabricators who also participate and certify their products through SGCC.

1.5DELIVERY, STORAGE, AND HANDLING

  1. Deliver materials in manufacturer's original, unopened, undamaged containers with identification labels intact.
  2. Store materials in original packaging, protected from exposure to harmful environmental conditions including static electricity, and at temperature and humidity conditions recommended by manufacturer.
  3. Exercise care to prevent edge damage to glass, wire, and coatings on glass.
  4. Where insulating glass units will be exposed to substantial altitude changes, avoid hermetic seal ruptures by complying with manufacturer’s recommendations for venting and sealing.
  1. PROJECT / SITE CONDITIONS
  2. Verify frame channel dimensions are adequate for wire runs as designed.
  3. Environmental Requirements:
  4. Ensure that substrate surface and ambient air temperature are minimum of 40 degrees F (5degreesC) and rising at application time and remain above 40 degrees F (5degreesC) for at least 24 hours after application of sealants.
  5. WARRANTY
  6. Insulating Glass Unit. The Insulating Glass Unit produced by the dynamic glass manufacturer and purchased from the dynamic glass manufacturerby the Customer will be free from material obstruction of vision as a result of fogging or film formation on the internal glass surfaces caused by failure of the hermetic seal which is due to defects in material and workmanship, and the Electrochromic Coating included in such Insulating Glass Unit will perform the function of switching the tint level of such Insulating Glass Unit, for the Limited Warranty Period specified below which shall commence on the date of delivery of the Insulating Glass Unit by the dynamic glass manufacturer:
  7. Insulating Glass Unit which does not include laminated glass or sloped glazing: Ten (10) years
  8. Insulating Glass Unit which does include laminated glass or sloped glazing: Five (5) years.
  9. Balance of System (BOS). All components necessary for the operation and control of the Insulating Glass Units which are purchased from the dynamic glass manufacturerby the Customer (collectively, “Balance of System” or “BOS” and individually, “BOS Components”) will be free of defects in material and workmanship for a Limited Warranty Period of five (5) years from the date of delivery by the dynamic glass manufacturer.

2.0PRODUCTS

2.1MANUFACTURERS

  1. Acceptable Glass Manufacturer:

VIEW Inc.

195 S. Milpitas Blvd,

Milpitas, CA 95035

Telephone: 408-514-6512

E-mail:

Internet:

  1. Substitutions: Not permitted
  2. All proposed substitutions (clearly delineated as such) must be submitted in writing for approval by the design professional of record a minimum of 10 working days prior to the bid date and must be made available to all bidders. Proposed substitutes must be accompanied by a review of the specification noting compliance on a line-by-line basis.
  1. MATERIALS
  2. Dynamic GlassInsulating Glass Units (IGUs) – Standard Construction
  3. Outboard Lite:
  4. Glass Type: Clear float glass.
  5. Glass Tint: Variable electrically
  6. Nominal Thickness: 0.25 in (6 mm) per industry standards.
  7. Heat Treatment: Tempered.
  8. Coating Orientation: Surface No. 2.
  9. Busbar Location: Along the edge of the glass.
  10. Air Space:
  11. Spacer Material: a triple seal design suitable for Structural Glazing, consisting of a thermoset foam spacer incorporating integral 3A desiccant, pre-applied adhesive for glass bonding, a captive polyisobutylene primary seal, and a structural seal. Edgetech Super Spacer® TriSeal™ or approved equivalent.
  12. Nominal Thickness: 0.50 plus/minus 0.02 inch (12.5 mm plus/minus 0.5mm).
  13. Gas Fill: 90 percent argon.
  14. Inboard Lite:
  15. Glass Type: Clear float glass.
  16. Glass Tint: Clear.
  17. Nominal Thickness: 0.250 inch (6 mm).
  18. Heat Treatment: Tempered
  19. Pigtail:
  20. Custom manufacturer cable 12” (300mm) in length terminated with custom IP67 (weatherproof) rated connector 5/16” (8mm) round
  21. Requires minimum 7/16” (11mm) hole through the framing system
  22. Standard IG Configuration Performance
  23. Dynamic 60 Performance Characteristics (Center of Glass):
  24. Visible Transmittance: 58 percent.
  25. Interior Visible Reflectance: 20.4 percent.
  26. Exterior Visible Reflectance: 17.7 percent.
  27. U-factor (U-value): 0.29
  28. Solar Heat Gain Coefficient (SHGC): 0.46
  29. Dynamic 40 Performance Characteristics (Center of Glass):
  30. Visible Transmittance: 40.6 percent.
  31. Interior Visible Reflectance: 18.9 percent.
  32. Exterior Visible Reflectance: 12.2 percent.
  33. U-factor (U-value): 0.29
  34. Solar Heat Gain Coefficient (SHGC): 0.29
  35. Dynamic 20 Performance Characteristics (Center of Glass):
  36. Visible Transmittance: 20.2 percent.
  37. Interior Visible Reflectance: 17.7 percent.
  38. Exterior Visible Reflectance: 8.4 percent.
  39. U-factor (U-value): 0.29
  40. Solar Heat Gain Coefficient (SHGC): 0.16
  41. Dynamic 4 Performance Characteristics (Center of Glass):
  42. Visible Transmittance: 3 percent.
  43. Interior Visible Reflectance: 17.4 percent.
  44. Exterior Visible Reflectance: 7.3 percent.
  45. U-factor (U-value): 0.29
  46. Solar Heat Gain Coefficient (SHGC): 0.09
  1. Requirements:
  2. Heat-Strengthened Float Glass: Comply with ASTM C1048, Type I, Class 1 (clear), Quality Q3, Kind HS.
  3. Tempered Float Glass: Comply with ASTM C1048, Type I, Class 1 (clear), Quality Q3, Kind FT.
  4. Safety Tempered Float Glass: Comply with ANSI Z97.1 and CPSC 16 CFR 1201.
  5. Laminated Glass: Comply with ASTM C1172 and other requirements as specified.
  6. Fabricate laminated glass products in autoclave with heat, plus pressure, free of foreign substances and air pockets.
  7. Provide hermetically sealed IGU with dehydrated airspace, primary seal of polyisobutylene (PIB);color- gray and secondary seal of silicone; color- gray
  1. Network Controller: Gateway between Bus and BACNet devices.
  2. Electrical Peak Power: 4 watts.
  3. Maximum Input Voltage: 24 volts DC.
  4. Maximum Input Current: 0.9 amps.
  5. Height: 0.75 inch (19 mm).
  6. Width: 5 inch (126 mm).
  7. Depth: 5 inch (126 mm).
  8. Operating Temperature: 14F (-10C) to 140F (+60C).
  9. Window Controller:
  10. Electrical Peak Power: 12 watts.
  11. Maximum Input Voltage: 24 volts DC.
  12. Maximum Input Current: 0.6 amps.
  13. Maximum Output Voltage: 5 volts DC.
  14. Maximum Output Current: 4 amp.
  15. Length: 7 5/8 inch (193 mm).
  16. Width: 1 5/8 inch (41 mm).
  17. Height: 15/16 inch (24 mm).
  18. Operating Temperature: -20°C (-4°F) to 60°C (140°F)
  19. Zone Controller:
  20. Peak Power: 1 watt.
  21. Max input voltage: 24 volts DC.
  22. Max input current: 0.2 amp.
  23. Length: 7 5/8 inch (193 mm).
  24. Width: 1 5/8 inch (41 mm).
  25. Height: 15/16 inch (24 mm).
  26. 5-conductor plenum rated sheathed cable, 0.2 inch O.D.
  27. Terminated with IP67 rated 8mm connectors, both ends
  28. Operating Temperature: -20°C (-4°F) to 60°C (140°F)
  29. IGU Cable, IGU Y-connector:
  30. 5-conductor plenum rated sheathed cable type CMP/CL2P, 0.2 inch
  31. Terminated with IP67 rated 8mm connectors, both ends
  32. Control Sensor:
  33. Outdoor Photosensor – up to 100,000 Lux
  34. Indoor Photosensor- up to 3000 Lux
  35. Contact dynamic glass manufacturer to determine quantity.
  36. Wall Switch:
  37. Dry contact SPST momentary switches for TINT, CLEAR, and intermediate states
  38. Switch contacts are gold plated and environmentally sealed to IP67 standards
  39. Switch contacts are rated for 24VDC operation
  40. Switch housing includes integrated LED indicator(s) to communicate window controller states
  41. Class I Wiring:
  42. Cables and wiring for the dynamic glass control system must come from the approved manufacturer’s parts list. This includes but is not limited to the trunk line cable, trunk connector, drop connector, IGU cable and bus drop cable.
  43. Power Supply:
  44. Power supplies for the dynamic glass control system must come from the approved manufacturer’s parts list. Requirements include:
  45. UL Listed, Class I per Article 725.21
  46. Electrical Peak Power: Various sizes up to 1000 watts.
  47. Input voltage: 100-240 volts AC, 50/60 Hz.
  48. Max output voltage: 24 volts DC.
  49. Max output current: up to 41.6 amps.
  50. Output over-current protection provided by others as required by Article 725 for Class I circuits.
  51. AC Wiring: 120, 208, or 240V AC, service to an approved 24V DC powersupply. Supplied by Electrical Contractor.
  52. Off state: Clear.
  53. Operating Voltage: 5 volts DC or less.

PART 3 - EXECUTION

3.1EXAMINATION

  1. Site Verification and Conditions
  2. Verify that site conditions are acceptable for glass installation.
  3. Verify openings for glazing are correctly sized and within tolerance.
  4. Verify that functioning weep system is present.
  5. Verify that minimum required face and edge clearances are being met.
  6. Verify that glazing channels and recesses are clear and free of obstructions, weeps are clear, and channels and recesses are ready for glazing.
  7. Correct any such condition deemed unsatisfactory by glazing contractor or dynamic glass manufacturer
  8. Do not proceed with glazing until unsatisfactory conditions have been corrected.

3.2PREPARATION

  1. Surface Preparation:
  2. Clean and prepare glazing channels and other framing members to receive glass and wire.
  3. Remove coatings and other harmful materials that will prevent glass and glazing installation required to comply with performance criteria specified.

3.3INSTALLATION

  1. Install products using manufacturer’s recommendations of glass, sealants, gaskets, and other glazing materials, except where more stringent requirements are indicated including those in the "GANA Glazing Manual".
  2. Verify that IGU secondary seal is compatible with glazing sealants.
  3. Install glass in prepared glazing channels and other framing members. Comply with glass manufacturer’s labels and instructions for glass orientation.
  4. The active tint area shall reach edge to edge of the finished window system with no visible sliver of light along the window perimeter or through the center of glass.
  5. Options for Control Integration
  6. In-Shop: Install WC, cables & other control components per framing manufacturer’s wiring diagram
  7. In-Field: Install WC, cables & other control components per others’ wiring diagram
  8. Protect IGU pigtail from any damage during installation. Use grommets during installation to protect wire when routing through frame. If the IGU pigtail connector is damaged during installation, the dynamic glass manufacturermust be notified and the connector must be repaired with a dynamic glass manufacturer approved method.
  9. Install setting blocks in rabbets as recommended by referenced glazing standards in GANA Glazing Manual and IGMA Glazing Guidelines and manufacturer’s Glazing Guidelines.
  10. Use edge blocks for all installed panes to prevent glass from walking post installation.
  11. Provide bite on glass, minimum edge and face clearances, and glazing material tolerances recommended by GANA Glazing Manual and as approved by glass manufacturer.
  12. Provide weep system as recommended by GANA Glazing Manual.
  13. Distribute weight of glass unit along edge rather than at corners.
  14. Comply with framing manufacturer's and referenced industry recommendations on expansion joints and anchors, accommodating thermal movement, glass openings, use of setting blocks, use of glass spacers, edge blocks, and installation of weep systems.
  15. Protect glass from edge damage during handling and installation.
  16. Install per IGMA North American Glazing Guidelines for Sealed Insulating Glass Units, for Commercial and Residential Use TM-3000-90(04) states “For dry glazed systems, an adequate seal should consist of a minimum of 0.70 N/mm (4lb/in) and not exceeding 1.75 N/mm (10 lb/in) applied to the edges of the insulating glass unit by gaskets or other fastening systems.”
  17. Prevent glass from contact with contaminating substances that result from construction operations, such as weld spatter, fireproofing, or plaster.
  18. Once IGUs have been removed from dynamic glass manufacturer packaging, remove labels within 30 days of exposure to sunlight or other UV light sources.

3.4CONTROLS INSTALLATION