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Home My WebLink AboutBID - 7382 MAX BRT SOUTH TRANSIT CENTER (4)Addendum 4 – 7382 MAX BRT South Transit Center Page 1 of 5 ADDENDUM No. 4 SPECIFICATIONS AND CONTRACT DOCUMENTS Description of BID 7382: MAX BRT South Transit Center OPENING DATE: 3:00 PM (Our Clock) May 31, 2012 To all prospective bidders under the specifications and contract documents described above, the following changes/additions are hereby made and detailed in the following sections of this addendum: 1. The Opening Date has been changed to May 31, 2012 at 3:00 PM (our clock) 2. Additional Information: Exhibit 1 – Questions & Answers Exhibit 2 - Revisions to the Specifications Exhibit 3 – Revisions to the Plans Please contact John Stephen, CPPO, LEED AP, Senior Buyer, at (970) 221-6777 with any questions regarding this addendum. RECEIPT OF THIS ADDENDUM MUST BE ACKNOWLEDGED BY A WRITTEN STATEMENT ENCLOSED WITH THE BID/QUOTE STATING THAT THIS ADDENDUM HAS BEEN RECEIVED. Financial Services Purchasing Division 215 N. Mason St. 2nd Floor PO Box 580 Fort Collins, CO 80522 970.221.6775 970.221.6707 fcgov.com/purchasing Addendum 4 – 7382 MAX BRT South Transit Center Page 2 of 5 EXHIBIT 1 – QUESTIONS & ANSWERS 1. Can a Weil McLain Ultra 399 with a wall kit be substituted as an approved alternate to the Triangle Prestige Solo 399? Please clarify. Yes. Please see Specifications 3. 2. The UPS 26-116 does not come with a flow check version and is a 230v pump only. The electrical schedule also calls for a 120v circuit to these pumps. We recommend changing the pumps to the UPS 26-150 pump at 120v and adding a flow check in the piping. Is this acceptable, please clarify? Yes. Please see Drawings 3. 3. Each boiler has a 30psi relief valve. With this valve ASME expansion tank is not required per the state inspector. Is it acceptable to change to a non-ASME expansion tank - a Flexcon SXHT60 expansion tank? Yes. Please see Specification 2. 4. Is it acceptable to use 2" Webstone isolation flanges in lieu of separate flanges and the requirement for reducing/increasing pipe size to/from pump? Yes. See Specification 1. Addendum 4 – 7382 MAX BRT South Transit Center Page 3 of 5 EXHIBIT 2 - REVISIONS TO THE SPECIFICATIONS 1. Section 15060 PIPES, VALVES AND PIPING SPECIALTIES Paragraph 2.03 Miscellaneous Piping Materials/Products Add: Threaded Pump Flanges: Webstone 50407HV with sweat fittings. 2. Section 15000 HVAC HYDRONIC SYSTEMS Paragraph 2.05 Expansion Tanks Add, Flexcon to the list of Acceptable Manufacturers. Clarification that ASME construction is not required. 3. Section 15550 HEAT GENERATION Paragraph 2.01, Part D Acceptable Manufacturers Add: Weil McLain Ultra 4. Section 03133 PERMANENT INSULATED CONCRETE FORMING SYSTEM Paragraph 2.01, F Acceptable Manufacturers Add: NUDURA Corporation as an approved manufacturer 5. Section 09841 ACCOUSTICAL CEILING FABRICATIONS Replace Paragraph 2.01 with the following language: 2.01 ACOUSTICAL CEILING FABRICATIONS A. General: Prefabricated acoustical ceiling-mounted "cloud" fabrications, comprised of dimensionally stable fiberglass board with chemically hardened edge protection, suspended from ceiling/roof structure with steel aircraft cabling, complete with all components, accessories and trims. 1. Assembly Noise Reduction Coefficient (NRC) Requirements: 1.05 minimum, when tested in accordance with ASTM C-423 (Type H mounting). 2. Size(s): 30" wide x 48" high, or as shown on the Drawings. B. Edges: Manufacturer's standard square resin-hardened edges. C. Acoustical Insulation: Dimensionally stable PCF fiberglass board, 2" thick, meeting the performance criteria specified above. 1. R-Value: 8.3 minimum. D. Fabric: Designtex or approved equal, Class A fire rating. Finish shall be applied directly over all sides. All corners are fully tailored. 1. Style and Color: "Singing in the Rain", color to be selected by the Architect from manufacturer's full color line. E. Suspension System: Industrial quality steel aircraft cable, thickness as determined by manufacturer for size and weight of assembled "cloud" units, and approved by the Architect. F. Anchorages and Hanging Hardware: Provide manufacturer's standard wire-lock hanging system, including anchorage components, bolts, screws, eyes, clips and other hardware as recommended by the manufacturer for specific installation requirements. 1. Hanging system shall allow for easy leveling or angular placement of individual units. Addendum 4 – 7382 MAX BRT South Transit Center Page 4 of 5 G. Panel Fabrication: 1. Fabricate panels plumb and straight, flush and in proper alignment. Secure acoustical core material continuous and flush, secured in place with recommended fasteners. 2. Fabricate edge and corner profiles with manufacturer's standard square design. 3. Cut fabric from each roll, maintaining sequence of drops and matching direction of weave for sequential and uniform installation. Stretch fabric and secure into the locking jaws of the extrusions so that it will be smooth, free of wrinkles and the weave straight and parallel to perimeter anchors, plumb and aligned horizontally and vertically. Gluing or stapling of fabric will not be acceptable for this work. H. LEED Design Criteria: 1. Credit EQ 4.1: Adhesives and sealants with VOC content not exceeding 70 g/L for multi-purpose construction adhesives or 250 g/L for architectural sealants. 2. Credits MR 4.1 and 4.2, Recycled Content: 50% minimum. I. Approved System and Manufacturers: 1. A100 Series Acoustical Wall and Ceiling Panels, Wall Technology Inc., Ladysmith, WI, (800) 359-3312, as the basis of design. 2. Manufacturers providing materials of the same design, function, performance, quality and appearance are acceptable as approved by the Architect prior to bidding. 6. Section 06100 ROUGH CARPENTRY Paragraph 2.01 Part B. Change: Douglas Fir, appearance grade to Spruce Pine Fir, appearance grade. 7. Section 6120 STRUCTURAL INSULATED PANELS (SIP) Paragraph 2.01, Part K Add: Big Sky Insulations and Insulfoam as approved manufacturers. This product is required to meet all of the requirements of the structural design as detailed in the drawings and specifications. It is the responsibility of the contractor to ensure that products bid for this project will meet the Federal Transportation Administration's Buy America requirements. All design and engineering costs and/or additional materials associated with substituting the specified product/ system shall be the responsibility of the contractor. 8. Section 03133 PERMANENT INSULATED CONCRETE FORMING (ICF) SYSTEM Paragraph 2.01, Part F Add: NUDURA Corporation as an approved manufacturer This product is required to meet all of the requirements of the structural design as detailed in the drawings and specifications. It is the responsibility of the contractor to ensure that products bid for this project will meet the Federal Transportation Administration's Buy America requirements. All design and engineering costs and/or additional materials associated with substituting the specified product/ system shall be the responsibility of the contractor. Addendum 4 – 7382 MAX BRT South Transit Center Page 5 of 5 EXHIBIT 3 – REVISIONS TO THE PLANS 1. Sheet MP1.0 – Radiant Heat General Notes, Note 12. Clarification that the intent is to provide Tekmar controls “where it makes sense” to control the radiant heat system. The successful temperature control contractor will be responsible for full control system integration and compliance with the intent of the construction documents. 2. Sheet M3.1 – Air Eliminator Schedule. It is acceptable to provide a 2” Spirovent Spirotherm Senior air eliminator instead of that specified. 3. Sheet M3.1 – Pump Schedule. P-1 through P-4. Clarification that the pumps will need to have 115/1/60 electrical service, Grundfos UPS-26-150F pumps have been selected by the supplier as an appropriate alternate pump (supplier to confirm). Field installed check valves will be required for each pump. Refer to detail 1/M4.1. 4. Sheet A0.1 CODE REVIEW A sprinkler system per Section 15300 is required by the City of Fort Collins for all enclosed/ conditioned spaces of the building. A sprinkler system is not required at the exterior passenger waiting platform areas covered by the roof canopy.