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HomeMy WebLinkAboutCornell_Kennedy-Clark_Thermal_Upgrade_Addendum_Submittal ADD 1_9-16-2020.pdf CORNELL UNIVERSITY KENNEDY HALL TO CLARK HALL FACILITIES CONTRACTS THERMAL SYSTEM UPGRADE 121 HUMPHREYS SERVICE BUILDING ITHACA, NEW YORK 14853-3701 ADDENDUM NO. 1 September 16, 2020 This Addendum contains changes to the requirements of the Contract Documents and Specifications. Such changes are to be incorporated into the Construction Documents and shall apply to the work with the same meaning and force as if they had been included in the original document. Wherever this Addendum modifies a portion of a paragraph of the specifications or a portion of any Drawing, the remainder of the Paragraph or Drawing shall remain in force. NOTE: Provisions of all Contract Documents apply. Item 1. Instruction to Bidders, INS-6, Item 14.d. DELETE “…2:00PM on October 14, 2020.” REPLACE with “…3:30PM on October 14, 2020.” Item 2. In accordance with the Instruction to Bidders, INS-5, Item 5, all sitework for this project is to be performed by one of the following qualified IUOE subcontractors below: Gorick Construction Matt Williams 607-760-4158 Matt@gorickconstruction.com R.H. Law Rich Law 315-437-5610 rlaw@rhlawinc.com Wenzel Contractors Mark Squires 607-732-7781 msquires@wenzelcontracting.com Economy Paving Steven Compagni 607-745-5011 Scompags@economypaving.com Paolangeli Pogo Paolangeli 607-279-0315 pogo@lightlink.com Difiore Construction Brian Difiore 585-202-2191 bdifiore@difioreconstruction.net Maxim Construction Services James Malvasi 315-952-5998 Info@maximconstructionservices.com C.P. Ward John Klimek 585-889-8800 Jklimek@cpward.com ****END OF ADDENDUM**** ADD 2_10-1-2020.pdf CORNELL UNIVERSITY KENNEDY HALL TO CLARK HALL FACILITIES CONTRACTS THERMAL SYSTEM UPGRADE 121 HUMPHREYS SERVICE BUILDING ITHACA, NEW YORK 14853-3701 ADDENDUM NO. 2 October 1, 2020 This Addendum contains changes to the requirements of the Contract Documents and Specifications. Such changes are to be incorporated into the Construction Documents and shall apply to the work with the same meaning and force as if they had been included in the original document. Wherever this Addendum modifies a portion of a paragraph of the specifications or a portion of any Drawing, the remainder of the Paragraph or Drawing shall remain in force. NOTE: Provisions of all Contract Documents apply. GENERAL REQUIREMENTS Item 1. Section 01 11 00 Summary of the Work: Part 1.1.C. ADD 7. Staging area near Big Red Barn shall be removed, fully restored to preexisting condition, and turned over to the owner by May 26, 2021 for use from May 26 to June 15, 2021. 8. The Space Sciences staging area shall have screened chain link fencing. 9. Big Red Barn pavers shall be restored for Commencement. 10. All streets and walks shall be fully open for Commencement, and the following 2 weekends. Item 2. Section 33 21 13.13 Underground Hot Water Distribution Pipe, Section 1.3 – Submittals ADD I. Leak Detection System: Submit a leak detection schematic showing cable routing, proposed quantity and location of leak detection control panels, etc. Item 3. Section 33 21 13.13 Underground Hot Water Distribution Pipe, Section 2.1 – Pre-Insulated Bonded Steel Pipe and Fittings DELETE paragraph E in its entirety. REPLACE with E. Leak Detection System 1. Provide a real location monitoring Leak Detection System. 2. Leak detection cabling to include two 1.5mm copper surveillance wires, one bare and one tinned finish to facilitate installation. Kennedy Hall to Clark Hall Thermal System Upgrade Addendum No. 2 October 1, 2020 Page 2 DRAWINGS Item 4. CD Drawings – Cover Page ADD new drawings C-260, C-261, M-601 and M-602. Item 5. CD Drawing C-110 ADD clouded revisions shown in SK-01, attached. - Eliminate temporary sidewalk for Phase 1. Item 6. CD Drawings C-110, C-111, C-112 & C-113 ADD notes 5-7 as follows: 5. All temporary walkways (sidewalks, bridges, etc.) shall be ADA accessible. 6. Temporary walkways shall be a minimum of 4-feet wide with a maximum 0.02 cross slope and a maximum 0.05 running slope between ramps. Temporary walkways less than 5-feet wide in width shall provide for a 5-foot by b-foot passing space at intervals not to exceed 200-feet. 7. Temporary asphalt walks shall provide an ADA accessible pedestrian route using temporary 2” thick asphalt sidewalk on geotextile fabric. Item 7. CD Drawing C-220 ADD clouded revisions shown in SK-02, attached. - Revised underdrains near existing vault 29-2. Item 8. CD Drawing C-500 ADD clouded revisions shown in SK-03, attached. - Updated Details 1.4.1 and 1.4.2. Item 9. CD Drawing M-222 ADD clouded revisions shown in SK-04, attached. - Added high point vents. Item 10. CD Drawing M-223 ADD clouded revisions shown in SK-05, attached. - Added high point vents. Item 11. CD Drawing M-224 ADD clouded revisions shown in SK-06, attached. - Revised supports. Kennedy Hall to Clark Hall Thermal System Upgrade Addendum No. 2 October 1, 2020 Page 3 Item 12. CD Drawing M-225 ADD clouded revisions shown in SK-07, attached - Revised supports. Item 13. CD Drawing M-226 ADD clouded revisions shown in SK-08, attached. - Revised steam pipe routing, deleted steam trap. Item 14. CD Drawing M-255 ADD clouded revisions shown in SK-09, attached. - Revised steam and condensate supports Item 15. CD Drawing M-260 ADD clouded revisions shown in SK-10, attached. - Revised support, added note 1 . Item 16. CD Drawing M-270 ADD clouded revisions shown in SK-11, attached. - Revised support, added note 3. Item 17. CD Drawing M-280 ADD clouded revisions shown in SK-12, attached. - Revised support. Item 18. CD Drawing M-290 ADD clouded revisions shown in SK-13, attached. - Revised support, added note 2. Item 19. CD Drawing M-295 ADD clouded revisions shown in SK-14, attached. - Add support PS-23. Item 20. CD Drawing M-502 ADD clouded revisions shown in SK-15, attached. - Add Typical Vent & Drain detail and Typical Equipment Pad detail. Kennedy Hall to Clark Hall Thermal System Upgrade Addendum No. 2 October 1, 2020 Page 4 Item 21. CD Drawing S-001 DELETE CONCRETE Note 2 in its entirety. REPLACE with: 2. Concrete shall be normal weight concrete and shall develop a minimum compressive strength of 5000 psi at 28 days unless otherwise noted. • Coarse and fine aggregates shall be on the New York State DOT list of approved aggregate sources and shall not be designated as having ASR potential. • The minimum bulk SSD specific gravity of the coarse aggregate on the New York State DOT posted test results shall be 2.67. • The maximum absorption of the coarse aggregate on the New York State DOT posted results shall be 1.2%. Item 22. CD Drawing S-101 ADD clouded revisions shown in SK-16, attached. - -Showed isolation joint on Sections A & B Item 23. CD Drawings DELETE the following CD Drawings in their entirety. REPLACE with Re-Issued CD Revision 01 Drawings, attached. M-103 – Added BTU Meters M-104 – Added BTU Meters M-221 – Added support locations and numbering M-600 – Added Support Details Item 24. CD Drawings ADD the following new CD Drawings to the package: C-260 – Site Plan, Camera Conduit Routing C-261 – Camera Conduit Routing Details M-601 – Pipe Support Details, Sheet 2 M-602 – Pipe Support Details, Sheet 3 Item 25. Below is a BOX link for Walk-through videos of the project site. https://cornell.box.com/s/fx8f227sgv5mllk3mksoq2d0z1f9402o Kennedy Hall to Clark Hall Thermal System Upgrade Addendum No. 2 October 1, 2020 Page 5 Item 26. RFI Questions and Clarifications See attached RFI Log (Items 1-13) Attachments: Sketches: SK-01, SK-02, SK-03, SK-04, SK-05, SK-06, SK-07, SK-08, SK-09, SK-10, SK-11, SK-12. SK-13, SK-14, SK-15, SK-16 Drawings: M-103 – Distribution Hot Water System Single Line M-104 – Savage/Kinzelberg Hot Water System Single Line M-221 – General Arrangement Hot Water Piping Clark Hall Sub-Basement Plan M-600 – Pipe Support Details Sheet 1 C-260 – Site Plan, Camera Conduit Routing C-261 – Camera Conduit Routing Details M-601 – Pipe Support Details Sheet 2 M-602 – Pipe Support Details Sheet 3 RFI Log (Items 1-13) ****END OF ADDENDUM**** CORNELL UNIVERSITY, ITHACA, NY SK-01 KENNEDY HALL TO CLARK HALL (Part of C-110) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-02 KENNEDY HALL TO CLARK HALL (Part of C-220) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-03 KENNEDY HALL TO CLARK HALL (Parts of C-500) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-04 KENNEDY HALL TO CLARK HALL (Part of M-222) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-05 KENNEDY HALL TO CLARK HALL (Part of M-223) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-06 KENNEDY HALL TO CLARK HALL (Parts of M-224) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-07 KENNEDY HALL TO CLARK HALL (Part of M-225) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-08 KENNEDY HALL TO CLARK HALL (Parts of M-226) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-09 KENNEDY HALL TO CLARK HALL (Part of M-255) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-10 KENNEDY HALL TO CLARK HALL (Part of M-260) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-11 KENNEDY HALL TO CLARK HALL (Parts of M-270) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-12 KENNEDY HALL TO CLARK HALL (Part of M-280) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-13 KENNEDY HALL TO CLARK HALL (Part of M-290) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-14 KENNEDY HALL TO CLARK HALL (Part of M-295) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-15 KENNEDY HALL TO CLARK HALL (Part of M-502) THERMAL SYSTEM UPGRADE CORNELL UNIVERSITY, ITHACA, NY SK-16 KENNEDY HALL TO CLARK HALL (Parts of S-101) THERMAL SYSTEM UPGRADE Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 441 South Salina Street Syracuse, NY 13202-4712 Main: (315) 471-3920 60624MAR. 2020 NONE BGBG/AB AB M-103 DISTRIBUTION HOT WATER SYSTEM SINGLE LINE ITHACA, NEW YORK CORNELL UNIVERSITY Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 441 South Salina Street Syracuse, NY 13202-4712 Main: (315) 471-3920 60624JUNE 2020 NONE CBLAB AB M-104 SAVAGE/KINZELBERG HOT WATER SYSTEM SINGLE LINE ITHACA, NEW YORK CORNELL UNIVERSITY Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 441 South Salina Street Syracuse, NY 13202-4712 Main: (315) 471-3920 60624MAR. 2020 3/8"=1'-0" BGBG/AB AB M-221 GENERAL ARRANGEMENT HOT WATER PIPING CLARK HALL SUB-BASEMENT PLAN ITHACA, NEW YORK CORNELL UNIVERSITY Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 441 South Salina Street Syracuse, NY 13202-4712 Main: (315) 471-3920 60624JUL. 2020 AS NOTED BGBG/AB AB M-600 PIPE SUPPORT DETAILS SHEET 1 ITHACA, NEW YORK CORNELL UNIVERSITY Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 300 South State Street - Suite 600 315.471.3920 Syracuse, NY 13202 60624SEP. 2020 1" = 30'-0" BGBG/AB AB C-260 SITE PLAN CAMERA CONDUIT ROUTING ITHACA, NEW YORK CORNELL UNIVERSITY Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 300 South State Street - Suite 600 315.471.3920 Syracuse, NY 13202 60624SEP. 2020 NONE BGBG/AB AB C-261 CAMERA CONDUIT ROUTING DETAILS ITHACA, NEW YORK CORNELL UNIVERSITY Designed By: Checked By: Drawing No.: Issue Date: Designed By:Drawn By: Project No: Scale: CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE 60624JUL. 2020 AS NOTED BGBG/AB AB M-601 PIPE SUPPORT DETAILS SHEET 2 ITHACA, NEW YORK CORNELL UNIVERSITY Designed By: Checked By: Drawing No.: Issue Date: Designed By:Drawn By: Project No: Scale: CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE 60624JUL. 2020 AS NOTED BGBG/AB AB M-602 PIPE SUPPORT DETAILS SHEET 3 ITHACA, NEW YORK CORNELL UNIVERSITY CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 1, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 1 IUOE Subs What happens if we don’t get three proposals from IUOE subs? If any of the invited bidders do not receive three (3) bids from IUOE subcontractors then the use of IUOE is not required. 2 Elevator Capacity What is the capacity of the Kinzelberg elevator and Clark freight elevator? Kinzelberg elevator rated for 4000 pounds. Clark freight elevator rated for 6000 pounds. 3 Stored Equipment in Clark Hall Who is responsible for moving the stored equipment in Clark? In Clark, the Owner will move stored equipment except for helium recovery units will stay in place. 4 Construction Drawings How Water Heat Exchangers What is the assembled weight? What are the contract limitations for mechanical? Owner pre-purchased HX skid drawings located in Clark sub-basement, including assembled wieght, will be free issued to the successful bidder. The skid will be shipepd in 2 crates, at approxiamtely 1350 pounds each. There will be minimal assembly for the contractor to perform. Contract limitations for this skid are shown on Drawing M103. 5 Specifications Above Ground Piping We require specifications for "above ground" piping in the various halls. These specs should include pipe & fittings, valves, in-line equipment such as strainers etc… The specs should address Hot Water, Steam / Condensate, Hot Glycol, underground CWS/R. Specifications for Steam and Condensate were provided within Technical Specification 23 22 13, pages 13-15. Indoor, above ground hot water and hot glycol piping should match the requirements provided for steam pipe. Hot water and glycol shall use butterfly valves for 3" and above, and ball valves for 2-1/2" and below. Underground CWS/R piping shall be installed in accordance with Technical Specification 33 21 13.14 - Underground Chilled Water Distribution Pipe. 6 Drawing C-211 Existing 12" CWS/R Material What is the material on the existing 12" CWS/R mains that the new 2" lines tie into on drawing C-211? The existing 12" mains are carbon steel. As shown on Drawing C-211, the tie-point includes 4" branch connections, 4" isolation valves, and 4" x 2" reducers. The 4" isolation valves shall be Flanged by MJ, AWWA Dresser 450 butterfly valves. 7 Controls Does Controls supply the control valves for Mechanical to install or does Mechanical supply / install? Do you have a preferred controls contractor or the name of one that is familiar with the existing system? The contractor shall purchase and install the control valves in accordance with the Equipment Schedules shown on dwg M-500. Connections to existing ALC Building Control System (24 VDC low voltage), including programming, will be selfperformed by Cornell. All other controls, including running conduits and wiring from field devices (pumps and VFDs) are by Contractor. The Contractor shall coordinate scheduling the demolition of existing controls with the Cornell Control Shop. The Cornell Control Shop will disconnect and reconnect all existing controls. Due to the existing building controls, our current controls contractor is Logical Control Solutions (LCS). 8 Dumpster Location There is a large amount of demolition in each area, can dumpsters be set up in each area to minimize handling? Dumpsters will be allowed as long as they are short term, don't impact traffic or pedestrians, are not under trees, and any damage to grass areas is restored by the contractor. CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 1, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 9 Drawing M-103 & M-104 Backflow Preventer Is the backflow preventer (RPZ) on the expansion tank fill line existing? If not please supply specifications. The source of the water supply shall be coordinated with the Owner after award. Follow the drawings that show two (2) check valves. 10 Approved Contractors Can you provide the list of approved contractors for Controls, Excavation & Asbestos Abatement as mentioned at the Zoom meeting. As there is no contractual relationship between Cornell and subcontractors it is the Contractors choice of who they would want to use as long as they meet Cornell's Building Trades Council agreements. 11 Construction Drawings Pipe Supports When will the pipe supports drawings be issued? See Addendum No. 2, Item 24. 12 Walk Through Video Is there a walk through video of the site available online for review? See Addendum No. 2, Item 25. 13 Specifications Hot Water System Inside the Buildings Please provide a spec for the hot water system pipe, valves, & supports for work inside the buildings. Refer to Item 5 response above. ADD 3_10-7-2020.pdf CORNELL UNIVERSITY KENNEDY HALL TO CLARK HALL FACILITIES CONTRACTS THERMAL SYSTEM UPGRADE 121 HUMPHREYS SERVICE BUILDING ITHACA, NEW YORK 14853-3701 ADDENDUM NO. 3 October 7, 2020 This Addendum contains changes to the requirements of the Contract Documents and Specifications. Such changes are to be incorporated into the Construction Documents and shall apply to the work with the same meaning and force as if they had been included in the original document. Wherever this Addendum modifies a portion of a paragraph of the specifications or a portion of any Drawing, the remainder of the Paragraph or Drawing shall remain in force. NOTE: Provisions of all Contract Documents apply. INSTRUCTION TO BIDDERS Item 1. Instructions to Bidders: Part 14 DELETE paragraph c. in its entirety REPLACE with c. Completed and responsive Bid Proposals shall be submitted through the eBuilder Bid Portal no later than 3:30PM on October 21, 2020. (Last questions/RFI’s due by Noon on October 12, 2020) GENERAL REQUIREMENTS Item 2. Section 01 11 00 Summary of the Work: Part 1.1.C. ADD 11. If the areas immediately on the east and west side of the Bailey stairs are disturbed between May 26, 2021 to June 15, 2021 they shall have screened fencing. 12. Reheat shut down for each building shall not be longer than 3 days, unless combined with steam shutdown June 1st to 3rd, 2021 for a total of 6 days. Item 3. CLARIFICATION Facilities Contracts will advise all invited bidders eight (8) hours prior to the bid due time as to whether an IUOE subcontractor will be required. Any questions regarding the IUOE should be emailed to facilitiescontracts@cornell.edu Kennedy Hall To Clark Hall Thermal System Upgrade Addendum No. 3 October 7, 2020 Page 2 TECHNICAL SPECIFICATIONS Item 4. ADD Section 23 25 00 HVAC Water Treatment, attached. Item 5. RFI Questions and Clarifications See attached RFI Log (Items 14-23) Attachments: Section 23 25 00 RFI Log (Items 1-23) ****END OF ADDENDUM**** CORNELL UNIVERSITY KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE SECTION 23 25 00 HVAC WATER TREATMENT TABLE OF CONTENTS Section Description Page No. 1.0 GENERAL............................................................ ......................................................... 1 1.1 Summary ............................................................................................................. 1 1.2 Water Treatment Criteria ..................................................................................... 1 1.3 Approval Process .......................................................... ....................................... 2 2.0 PROCEDURES ............................................................................................................. 2 2.1 Cleaning .............................................................................................................. 2 2.2 Treatment Chemicals ............................................................. .............................. 3 2.3 Identification ....................................................................................................... 3 2.4 Treatment Equipment .......................................................................................... 4 Kennedy Hall to Clark Hall HVAC WATER TREATMENT 23 25 00-1 Thermal System Upgrade October 2020 CORNELL UNIVERSITY SECTION 23 25 00 Ithaca, New York HVAC WATER TREATMENT 1.0 GENERAL 1.1 Summary A. This Standard applies to the cleaning and treatment of hydronic heating and cooling systems. B. Cornell University’s continual approach of protecting its community and the environment must be adhered to in the application of chemicals pertinent to process water loops. In addition, University policy dictates that "under no circumstances should chemicals be disposed of by pouring into sinks or other drains leading to sanitary or storm sewers." C. The use of automatic glycol make-up systems with direct connection to domestic water is not allowed. Provide means for manual fill, along with a 55-gallon drum to receive relief valve discharge. D. Design specifications shall clearly identify proper execution of water treatment procedures and testing. No water treatment shall be purchased, delivered or applied without approval by Cornell Environmental Health and Safety, Facilities Engineering and the Facilities Management Water Treatment Lab. 1.2 Water Treatment Criteria A. All chemicals and formulations prescribed for the cleaning and treatment of process water systems at the University must meet the following specified criteria: 1. They must be ecologically compatible so that any discharge will not create an environmental impact. All chemicals and formulations must comply with NY State SPDES (State Pollution Discharge Elimination System) regulations and be free of compounds listed by the EPA on the Priority Pollutant List as defined by 40 CFR Part 423 Appendix A. 2. They must be industrial and toxicologically safe to minimize personnel and equipment exposure to hazardous conditions. 3. Every effort must be made to maintain a sense of uniformity in chemical formulation to ensure a line of continuity. Deviation from existing formulations that are applied across the University are not allowed. This relieves the University of any burden that arises from trying to maintain adequate protection using numerous treatments. 4. Ethylene Glycol (CAS 107-21-1): This material is considered a hazardous substance per the 6 NYCRR Part 598. Any release (defined as unauthorized pumping, pouring, emitting, emptying, overfilling, spilling, leaking, leaching or disposing, directly or indirectly into the environment) in the amount of 1 pound of ethylene glycol into the air, land or water must be reported to the New York State Department of Environmental Conservation. For this reason, Cornell prohibits the use of ethylene glycol. Kennedy Hall to Clark Hall HVAC WATER TREATMENT 23 25 00-2 Thermal System Upgrade October 2020 1.3 Approval Process A. All materials proposed for application must have the prior approval of Environmental Health and Safety, Facilities Engineering and the Facilities Management Water Treatment Lab. In order to thoroughly evaluate the products performance, it is recommended that the following be submitted at the time of proposal: 1. Safety Data Sheets (SDS) for all products that are to be applied, which shall contain the complete formulation. Further documentation of qualitative composition must be included if SDS’s do not supply all product(s) components. 2. Product Data Sheets specifying overall product description and application guidelines. 3. Methods of analysis for determining product residuals. Proposals should specify specific qualitative and quantitative procedures of evaluating actual product levels. They should also include recommended parameters for all products, expressed in either terms of parts per million or milligrams per liter. 4. Expected performance levels of products: this should include expected corrosion rates, expressed in mils per year. If the product is of a biostatic nature, what levels of biological growth should be acceptable if the product is applied at recommended dosages. 5. Provisions should be submitted for the removal for any unused chemicals. In addition, provisions must be provided for the disposal of all empty containers. B. The above mentioned criteria will serve as a guide as to the minimum information required for approval of any chemical treatment applied at Cornell University. No water treatment shall be purchased, delivered or applied without consideration of the previously mentioned guidelines. 2.0 PROCEDURES 2.1 Cleaning A. Cleaning procedures for newly installed systems shall be as follows: 1. Step 1: Adjust all control valves and balancing valves to full open position during the cleaning and treatment process. 2. Step 2: Fill system and add a general dispersant for iron, mud, silt, and microbiological matter at a concentration recommended by the chemical manufacturer. Pay particular attention to the type of material being cleaned. (steel, copper, aluminum, etc.) Test for concentration. Circulate solution for 4-8 hours or as specified by the cleaner manufacturer’s recommendations. Flush system until system water pH and iron levels are consistent with the feed domestic water levels. Clean strainers and dead end piping legs. Provide test results to the Facilities Management Water Treatment Lab. 3. Step 3: Arrange for inspection by a representative from the Facilities Management Water Treatment Lab before proceeding to chemical treatment. B. For extensions to existing building systems, the above cleaning procedures shall be Kennedy Hall to Clark Hall HVAC WATER TREATMENT 23 25 00-3 Thermal System Upgrade October 2020 followed. Provide temporary piping, valving, and pumping system isolated from the existing building system as needed to perform cleaning procedures prior to final connection to the existing building system. 2.2 Treatment Chemicals A. Chemicals shall not be used to treat chilled water systems connected to the campus chilled water loop. B. Chilled water systems connected to the campus chilled water loop shall be cleaned, inspected, and filled with potable water. Notify The Central Energy Plant (CEP) for permission to begin circulating water into the campus chilled water loop. C. Existing Systems – Field verify existing treatment chemical quantities to ensure the correct quantities are added back to the system following construction. D. Treatment chemicals for hydronic heating and chilled water cooling systems, not connected to the campus chilled water loop, shall be as follows: 1. Non-Glycol Systems (non-potable): After cleaning and inspection, immediately add a molybdate based corrosion inhibitor. Acceptable corrosion inhibitors shall include a combination of sodium molybdate, sodium hydroxide, tolytriazole and organic polymers. Test for residual concentrations as follows: a. Molybdate (M06): 150 ppm (hot water systems) b. pH: 8.3-9 c. Tolytriazole (TTA): 10-20 ppm 2. Non-Glycol System (potable): Refer to Section 33 10 00 – Water Utilities. 3. Glycol Heating Systems: After cleaning and inspection, drain system then refill with glycol as specified below. 4. Glycol Cooling Systems: After cleaning and inspection, drain system then refill with glycol solution at a concentration recommended by the manufacturer, with nitrate and tolytriazole corrosion inhibitors. 5. The water to be added to glycol solutions shall meet manufacturer’s standards for quality. E. Glycol for heating systems shall be specifically formulated to the following specifications: 1. Propylene glycol: 400,000 ppm (40%) 2. Nitrate: 1500 ppm 3. Tolytriazole: 20 ppm 4. Water: Balance 5. Color: Olive Green 6. Preferred Manf/Material: Metro PG#36 F. Arrange for inspection by a representative from the Facilities Management Water Treatment Lab prior to final acceptance. 2.3 Identification A. Provide a three-ring binder for each hydronic system treated with chemicals that include the following information: Kennedy Hall to Clark Hall HVAC WATER TREATMENT 23 25 00-4 Thermal System Upgrade October 2020 1. SDS, product data sheets, chemical type, test points, control limits and system volume. 2. Direction to drain system to sanitary drain. B. System volume shall be stenciled on the system expansion tank in a visible location. 2.4 Treatment Equipment A. Bag filters shall be provided for system volumes exceeding 500 gallons. B. Bag filters or chemical pot feeders shall be utilized for system volumes below 500 gallons. END OF SECTION PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 7, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 1 IUOE Subs What happens if we don’t get three proposals from IUOE subs? Not required to use an IUOE sub then 2 Elevator Capacity What is the capacity of the Kinzelberg elevator and Clark freight elevator? Kinzelberg elevator rated for 4000 pounds. Clark freight elevator rated for 6000 pounds. 3 Stored Equipment in Clark Hall Who is responsible for moving the stored equipment in Clark? In Clark, the Owner will move stored equipment except for helium recovery units will stay in place. 4 Construction Drawings How Water Heat Exchangers What is the assembled weight? What are the contract limitations for mechanical? Owner pre-purchased HX skid drawings located in Clark sub-basement, including assembled wieght, will be free issued to the successful bidder. The skid will be shipepd in 2 crates, at approxiamtely 1350 pounds each. There will be minimal assembly for the contractor to perform. Contract limitations for this skid are shown on Drawing M-103. 5 Specifications Above Ground Piping We require specifications for "above ground" piping in the various halls. These specs should include pipe & fittings, valves, in-line equipment such as strainers etc… The specs should address Hot Water, Steam / Condensate, Hot Glycol, underground CWS/R. Specifications for Steam and Condensate were provided within Technical Specification 23 22 13, pages 13-15. Indoor, above ground hot water and hot glycol piping should match the requirements provided for steam pipe. Hot water and glycol shall use butterfly valves for 3" and above, and ball valves for 2-1/2" and below. Underground CWS/R piping shall be installed in accordance with Technical Specification 33 21 13.14 - Underground Chilled Water Distribution Pipe. 6 Drawing C-211 Existing 12" CWS/R Material What is the material on the existing 12" CWS/R mains that the new 2" lines tie into on drawing C-211? The existing 12" mains are carbon steel. As shown on Drawing C-211, the tie-point includes 4" branch connections, 4" isolation valves, and 4"x2" reducers. The 4" isolation valves shall be Flanged by MJ, AWWA Dresser 450 butterfly valves. 7 Controls Does Controls supply the control valves for Mechanical to install or does Mechanical supply / install? Do you have a preferred controls contractor or the name of one that is familiar with the existing system? The contractor shall purchase and install the control valves in accordance with the Equipment Schedules shown on dwg M-500. Connections to existing ALC Building Control System (24 VDC low voltage), including programming, will be self-performed by Cornell. All other controls, including running conduits and wiring from field devices (pumps and VFDs) are by Contractor. The Contractor shall coordinate scheduling the demolition of existing controls with the Cornell Control Shop. The Cornell Control Shop will disconnect and reconnect all existing controls. Controls Contractor shall be Logical Control Solutions (LCS). 8 Dumpster Location There is a large amount of demolition in each area, can dumpsters be set up in each area to minimize handling? Dumpsters will be allowed as long as they are short term, don't impact traffic or pedestrians, are not under trees, and any damage to grass areas is restored by the contractor. CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 7, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response CORNELL UNIVERSITY, FACILITIES CONTRACTS 9 Drawing M-103 & M-104 Backflow Preventer Is the backflow preventer (RPZ) on the expansion tank fill line existing? If not please supply specifications. The source of the water supply shall be coordinated with the Owner after award. Follow the drawings that show two (2) check valves. 10 Approved Contractors Can you provide the list of approved contractors for Controls, Excavation & Asbestos Abatement as mentioned at the Zoom meeting. Any contractors are acceptable as long as they meet Cornell's Building Trades Council agreements. The following contractors perform asbestos work at Cornell: Lvi Environmental Services, Sunstream Corp, Genesee Environmental, LCP Group Inc. The following contractors perform air monitoring at Cornell : Delta, Artic, Labella, Watts. Controls contractors shall be Logical Control Solutions (LCS). 11 Construction Drawings Pipe Supports When will the pipe supports drawings be issued? See Addendum #2, Item 24. 12 Walk Through Video Is there a walk through video of the site available online for review? See Addendum No. 2, Item 25. 13 Specifications Hot Water System Inside the Buildings Please provide a spec for the hot water system pipe, valves, & supports for work inside the buildings. Refer to RFI Item 5 response above. 14 Drawing C-220 New Steam Pipe Regarding the new 12" Steam Line running from CL Vault to Roberts areaway. This 12" line appears to use a combination of new tunnels and existing tunnels as well as a space beneath Bailey Hall. Is the intent for this piping to be Pre-Insulated similar to the other buried piping, or are we to use Schedule 40 pipe and have an Insulator come in after the fact and insulate? The steam pipe will be Sch. 40 pipe (see Section 23 22 13) with insulation placed after installation (see Section 22 07 00). 15 Drawing M-103 & M-104 Chemical Shot Feeder Does the Chemical Shot Feeder shown on drawing M-103 come with the owner supplied equipment? It isn’t shown on the material schedule or on the drawings. The Chemical shot feeder shown on both drawings M103 and M-104 are to be supplied by the Contractor. Shot Feeders shall be supplied by Neptune, Model VTFC-5 complete with 20 Micron Pleated Filter (Part no. 107287), or equivalent. 16 Drawing M-103 & M-104 Chemical Shot Feeder Are there any specifications, sizes or weights available for the Chemical Shot Feeder shown on drawing M-103? Refer to RFI Item 15 response above. PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 7, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response CORNELL UNIVERSITY, FACILITIES CONTRACTS 17 1) Are controls apart of this bid? If so, who is the controls provider for each building we are installing in? 2) Is power wiring to the pumps a part of this bid? If so, is there a select list of electrical contractors? 3) Some of the systems have glycol, can you provide a specification for water treatment and glycol? 4) The owner provided AIC/JAD heat exchanger skid, can we get a dimensional cut sheet and weight for this skid? 5) There are pipe supports referenced on the drawings (PS - #), there are no details for these supports, please provide details? 1) Refer to RFI Item 7 response above. 2) Power to the pumps will be part of this contract and will be coming out in an addendum. Any electrical contractors are acceptable as long as they meet Cornell's Building Trades Council agreements. 3) Glycol Specification as follows: - Propylene Glycol 400,000 ppm (40%) - Nitrate 1,500 ppm - Tolytriazole 20 ppm - Water Balance - Color Olive Green - Preferred Manf/Material Metro PG#36 For additional informtaion refer to Spec Section 23 25 00 HVAC Water Treatment provided as part of Addendum 3. 4) The dimensions shown on the drawings are to scale. Refer to RFI Item 4 for AIC /JAD skid weight and assembly information. 5) Pipe Supports are included in Addendum 2. 18 Interior piping specification has already been requested in prior RFI's. Could we also have an Interior Piping Insulation Spec? Is all steam piping and condensate piping 3" and larger in tunnel to receive Aerogel? Below 3" on condensate piping is to be fiberglass? Please confirm valves to receive removable blankets are valves 2-1/2" and larger? Specification for Steam and Condensate pipe were provided within Technical Specification 23 22 13, pages 13-15. An Insulation Specification was also provided with the Bid Documents (22 07 00 - Thermal Insulation). All steam piping to receive 5 layers of 3/8" thick aerogel insulation. All condensate and hot water 3" and above to receive 2 layers of 3/8" thick aerogel insulation. All condensate and hot water below 3" to receive 2" of fiberglass insulation. Correct - valves 2-1/2" and larger to receive removable blankets. Note that outdoor valves do not require removable blankets as noted on the drawings. 19 Who is the suppling the VFD in the Savage Room Basement pumps? The Contractor is to provide VFD for the Savage Room basement pumps and the Clark Hall basement pumps. 20 Who will be taking ownership of the leak detection system design? The Contractor maintains ownership of the leak detection system design. As stated in Addendum #2, Item 2, the EN253 Hot Water Pipe Supplier is to submit a leak detection schematic showing cable routing, proposed quantity and location of leak detection control panels, etc. 21 Who is responsible for supplying the RTD’s, FE’s on the P&ID’s issued in Addendum 2? The Contractor is responsible for supplying these devices. 22 Who is responsible for supplying the temperature transmitters & BTU Meter on Drawings M103 & M104? The Contractor is responsible for supplying these devices. 23 Due to the size of Addendum 2 and upcoming Addendum 3, we would like to request an extension of the bid date. One week would be ideal, but if that is not acceptable, could you extend to 3:30 PM Friday Oct. 16? Thank you. See Addendum No. 3, Item 1. ADD 4_10-13-2020.pdf CORNELL UNIVERSITY KENNEDY HALL TO CLARK HALL FACILITIES CONTRACTS THERMAL SYSTEM UPGRADE 121 HUMPHREYS SERVICE BUILDING ITHACA, NEW YORK 14853-3701 ADDENDUM NO. 4 October 13, 2020 This Addendum contains changes to the requirements of the Contract Documents and Specifications. Such changes are to be incorporated into the Construction Documents and shall apply to the work with the same meaning and force as if they had been included in the original document. Wherever this Addendum modifies a portion of a paragraph of the specifications or a portion of any Drawing, the remainder of the Paragraph or Drawing shall remain in force. NOTE: Provisions of all Contract Documents apply. DRAWINGS Item 1. ADD Drawing E-301 – Conduit Layout Clark Hall Sub-Basement Plan, attached. RFI LOG Item 2. RFI Questions and Clarifications See attached RFI Log (Items 24-27) Attachments: Drawing E-301 – Conduit Layout Clark Hall Sub-Basement Plan RFI Log (Items 1-27) ****END OF ADDENDUM**** Drawing Copyright © 2019 Designed By: Checked By: Drawing No.: Issue Date: Designed By: Drawn By: Project No: Scale: No. By Date Submittal / Revision CORNELL UNIVERSITY ITHACA, NEW YORK KENNEDY HALL TO CLARK HALL THERMAL SYSTEM UPGRADE App'd. www.chacompanies.com 441 South Salina Street Syracuse, NY 13202-4712 Main: (315) 471-3920 60624OCT. 2020 3/16"=1'-0" CBLKF AB E-301 CONDUIT LAYOUT CLARK HALL SUB-BASEMENT PLAN ITHACA, NEW YORK CORNELL UNIVERSITY CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 13, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 1 IUOE Subs What happens if we don’t get three proposals from IUOE subs? Not required to use an IUOE sub then 2 Elevator Capacity What is the capacity of the Kinzelberg elevator and Clark freight elevator? Kinzelberg elevator rated for 4000 pounds. Clark freight elevator rated for 6000 pounds. 3 Stored Equipment in Clark Hall Who is responsible for moving the stored equipment in Clark? In Clark, the Owner will move stored equipment except for helium recovery units will stay in place. 4 Construction Drawings How Water Heat Exchangers What is the assembled weight? What are the contract limitations for mechanical? Owner pre-purchased HX skid drawings located in Clark sub-basement, including assembled wieght, will be free issued to the successful bidder. The skid will be shipepd in 2 crates, at approxiamtely 1350 pounds each. There will be minimal assembly for the contractor to perform. Contract limitations for this skid are shown on Drawing M-103. 5 Specifications Above Ground Piping We require specifications for "above ground" piping in the various halls. These specs should include pipe & fittings, valves, in-line equipment such as strainers etc… The specs should address Hot Water, Steam / Condensate, Hot Glycol, underground CWS/R. Specifications for Steam and Condensate were provided within Technical Specification 23 22 13, pages 13-15. Indoor, above ground hot water and hot glycol piping should match the requirements provided for steam pipe. Hot water and glycol shall use butterfly valves for 3" and above, and ball valves for 2-1/2" and below. Underground CWS/R piping shall be installed in accordance with Technical Specification 33 21 13.14 - Underground Chilled Water Distribution Pipe. 6 Drawing C-211 Existing 12" CWS/R Material What is the material on the existing 12" CWS/R mains that the new 2" lines tie into on drawing C-211? The existing 12" mains are carbon steel. As shown on Drawing C-211, the tie-point includes 4" branch connections, 4" isolation valves, and 4"x2" reducers. The 4" isolation valves shall be Flanged by MJ, AWWA Dresser 450 butterfly valves. 7 Controls Does Controls supply the control valves for Mechanical to install or does Mechanical supply / install? Do you have a preferred controls contractor or the name of one that is familiar with the existing system? The contractor shall purchase and install the control valves in accordance with the Equipment Schedules shown on dwg M-500. Connections to existing ALC Building Control System (24 VDC low voltage), including programming, will be self-performed by Cornell. All other controls, including running conduits and wiring from field devices (pumps and VFDs) are by Contractor. The Contractor shall coordinate scheduling the demolition of existing controls with the Cornell Control Shop. The Cornell Control Shop will disconnect and reconnect all existing controls. Controls Contractor shall be Logical Control Solutions (LCS). CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 13, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 8 Dumpster Location There is a large amount of demolition in each area, can dumpsters be set up in each area to minimize handling? Dumpsters will be allowed as long as they are short term, don't impact traffic or pedestrians, are not under trees, and any damage to grass areas is restored by the contractor. 9 Drawing M-103 & M-104 Backflow Preventer Is the backflow preventer (RPZ) on the expansion tank fill line existing? If not please supply specifications. The source of the water supply shall be coordinated with the Owner after award. Follow the drawings that show two (2) check valves. 10 Approved Contractors Can you provide the list of approved contractors for Controls, Excavation & Asbestos Abatement as mentioned at the Zoom meeting. Any contractors are acceptable as long as they meet Cornell's Building Trades Council agreements. The following contractors perform asbestos work at Cornell: Lvi Environmental Services, Sunstream Corp, Genesee Environmental, LCP Group Inc. The following contractors perform air monitoring at Cornell : Delta, Artic, Labella, Watts. Controls contractors shall be Logical Control Solutions (LCS). 11 Construction Drawings Pipe Supports When will the pipe supports drawings be issued? See Addendum #2, Item 24. 12 Walk Through Video Is there a walk through video of the site available online for review? See Addendum No. 2, Item 25. 13 Specifications Hot Water System Inside the Buildings Please provide a spec for the hot water system pipe, valves, & supports for work inside the buildings. Refer to RFI Item 5 response above. 14 Drawing C-220 New Steam Pipe Regarding the new 12" Steam Line running from CL Vault to Roberts areaway. This 12" line appears to use a combination of new tunnels and existing tunnels as well as a space beneath Bailey Hall. Is the intent for this piping to be Pre-Insulated similar to the other buried piping, or are we to use Schedule 40 pipe and have an Insulator come in after the fact and insulate? The steam pipe will be Sch. 40 pipe (see Section 23 22 13) with insulation placed after installation (see Section 22 07 00). 15 Drawing M-103 & M-104 Chemical Shot Feeder Does the Chemical Shot Feeder shown on drawing M-103 come with the owner supplied equipment? It isn’t shown on the material schedule or on the drawings. The Chemical shot feeder shown on both drawings M103 and M-104 are to be supplied by the Contractor. Shot Feeders shall be supplied by Neptune, Model VTFC-5 complete with 20 Micron Pleated Filter (Part no. 107287), or equivalent. 16 Drawing M-103 & M-104 Chemical Shot Feeder Are there any specifications, sizes or weights available for the Chemical Shot Feeder shown on drawing M-103? Refer to RFI Item 15 response above. CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 13, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 17 1) Are controls apart of this bid? If so, who is the controls provider for each building we are installing in? 2) Is power wiring to the pumps a part of this bid? If so, is there a select list of electrical contractors? 3) Some of the systems have glycol, can you provide a specification for water treatment and glycol? 4) The owner provided AIC/JAD heat exchanger skid, can we get a dimensional cut sheet and weight for this skid? 5) There are pipe supports referenced on the drawings (PS - #), there are no details for these supports, please provide details? 1) Refer to RFI Item 7 response above. 2) Power to the pumps will be part of this contract and will be coming out in an addendum. Any electrical contractors are acceptable as long as they meet Cornell's Building Trades Council agreements. 3) Glycol Specification as follows: - Propylene Glycol 400,000 ppm (40%) - Nitrate 1,500 ppm - Tolytriazole 20 ppm - Water Balance - Color Olive Green - Preferred Manf/Material Metro PG#36 For additional informtaion refer to Spec Section 23 25 00 HVAC Water Treatment provided as part of Addendum 3. 4) The dimensions shown on the drawings are to scale. Refer to RFI Item 4 for AIC /JAD skid weight and assembly information. 5) Pipe Supports are included in Addendum 2. 18 Interior piping specification has already been requested in prior RFI's. Could we also have an Interior Piping Insulation Spec? Is all steam piping and condensate piping 3" and larger in tunnel to receive Aerogel? Below 3" on condensate piping is to be fiberglass? Please confirm valves to receive removable blankets are valves 2-1/2" and larger? Specification for Steam and Condensate pipe were provided within Technical Specification 23 22 13, pages 13-15. An Insulation Specification was also provided with the Bid Documents (22 07 00 - Thermal Insulation). All steam piping to receive 5 layers of 3/8" thick aerogel insulation. All condensate and hot water 3" and above to receive 2 layers of 3/8" thick aerogel insulation. All condensate and hot water below 3" to receive 2" of fiberglass insulation. Correct - valves 2-1/2" and larger to receive removable blankets. Note that outdoor valves do not require removable blankets as noted on the drawings. 19 Who is the suppling the VFD in the Savage Room Basement pumps? The Contractor is to provide VFD for the Savage Room basement pumps and the Clark Hall basement 20 Who will be taking ownership of the leak detection system design? The Contractor maintains ownership of the leak detection system design. As stated in Addendum #2, Item 2, the EN253 Hot Water Pipe Supplier is to submit a leak detection schematic showing cable routing, proposed quantity and location of leak detection control panels, etc. 21 Who is responsible for supplying the RTD’s, FE’s on the P&ID’s issued in Addendum 2? The Contractor is responsible for supplying these devices. 22 Who is responsible for supplying the temperature transmitters & BTU Meter on Drawings M103 & M104? The Contractor is responsible for supplying these devices. 23 Due to the size of Addendum 2 and upcoming Addendum 3, we would like to request an extension of the bid date. One week would be ideal, but if that is not acceptable, could you extend to 3:30 PM Friday Oct. 16? Thank you. See Addendum No. 3, Item 1. CORNELL UNIVERSITY, FACILITIES CONTRACTS PROJECT: Kennedy Hall to Clark Hall Thermal System Upgrade Date: October 13, 2020 RFI Form RFI/ Page/ Response Dwg./Spec./Rep. Section/ Design Team Index Number Paragraph/Topic RFI Response 24 Controls To get an estimate for installation of the controls we will have to know where the existing control panels are located. Will you be providing drawings that show the locations? As stated in RFI Item 7 Response, the Cornell Control Shop will disconnect and reconnect all existing controls. The Contractor shall coordinate scheduling the demolition of existing controls with the Cornell Control Shop. The Contractor is responsible for supplying and installing control valves, instrumentation, etc. local to their associated piping/equipment. 25 Controls What instruments will the controls contractor be supplying? The Contractor is responsible for supplying the instruments shown on the flow diagrams. 26 Equipment Will you be supplying specifications for the equipment as was done for the BTU meters? The equipment is to be purchased in accordance with the requirements shown on the Equipment Schedules - Drawing M-500. 27 Equipment The vendors have requested a specification for the Pumps, Heat Exchangers, etc. Could one be provided. The equipment is to be purchased in accordance with the requirements shown on the Equipment Schedules - Drawing M-500.