MUSC State Project Number H MUSC Thurmond Gazes Bldg Animal Area Chiller Replacement RMF Project Number B0 Addendum No.

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1 MUSC State Project Number H MUSC Thurmond Gazes Bldg Animal Area Chiller Replacement RMF Project Number B0 Addendum No. 2 6 July 2018 ADDENDUM NO. 02 The following items shall take precedence over the drawings and specifications for the above named project and shall become a part of the contract documents. Where any item called for in the specifications, or indicated on the drawings, is not supplemented hereby, the original requirements shall remain in effect. Where any original item is amended, voided, or superseded hereby, the provisions of such item not specifically amended, voided or superseded shall remain in effect. Acknowledge receipt of this Addendum in the appropriate space on the Bid Form. Failure to do so may subject the bidder to disqualification. Clarifications 1. Contractors shall carry a $50, allowance for controls work by JCI to connect the chillers to the existing Building Automation System. Contractor Questions 1. Question: Do you have the weights of the existing chillers? Response: The existing chillers weigh the same as the new ones. They all have operating weights of 13,193 lbs. Drawing Revisions 1. Drawing MD101: a. A general note has been added and the drawings notes have been edited. b. The extents of demolition have changed. 2. Drawing M101: a. One drawing note has been added. b. The extents of the new work piping have changed. 3. Drawing M201: a. The demolition and new work schematics have been edited to include replacement of the manual butterfly valves. 4. Drawing M301: a. The Temperature Control Sequence has been edited. Project Manual Revisions _SE-310 Invitation for Design-Bid-Building Construction services: a. Kim Young has been listed in the Mail Service Bid Delivery Address section instead of Susie Watt. b. The Performance Bond Required box has been checked Valves For HVAC Piping: a. Manual butterfly valves have been specified. 1 of 2

2 MUSC State Project Number H MUSC Thurmond Gazes Bldg Animal Area Chiller Replacement RMF Project Number B0 Addendum No. 2 6 July 2018 Documents Attached 1. MD M M M _SE Invitation for Design-Bid-Building Construction services Valves For HVAC Piping END OF ADDENDUM NO. 2 2 of 2

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7 SE-310 INVITATION FOR DESIGN-BID-BUILD CONSTRUCTION SERVICES 2018 Edition AGENCY/OWNER: Medical University of South Carolina (MUSC) PROJECT NAME: MUSC Thurmond Gazes Building Animal Area Chiller Replacement PROJECT NUMBER: H PROJECT LOCATION: Medical University of South Carolina, Charleston, South Carolina DESCRIPTION OF PROJECT/SERVICES: The project consists of the removal and replacement of three (3) 200 ton aircooled chillers on the roof of the Thurmond Gazes Building. BID/SUBMITTAL DUE DATE: 07/12/2018 CONSTRUCTION COST RANGE: $ 500,000 to $ 800,000 N/A PROJECT DELIVERY METHOD: Design-Bid-Build BID SECURITY IS REQUIRED IN AN AMOUNT NOT LESS THAN 5% OF THE BASE BID. PERFORMANCE BOND REQUIRED? Yes No PAYMENT BOND REQUIRED? Yes No BIDDING DOCUMENTS/PLANS MAY BE OBTAINED FROM: PLAN DEPOSIT AMOUNT: $ 0 IS DEPOSIT REFUNDABLE Yes No N/A Bidders must obtain Bidding Documents/Plans from the above listed source(s) to be listed as an official plan holder. Bidders that rely on copies obtained from any other source do so at their own risk. All written communications with official plan holders & bidders will be via or website posting. All questions & correspondence concerning this Invitation shall be addressed to the A/E. A/E NAME: RMF Engineering, Inc. A/E CONTACT: Don Zimmerman III, PE, CEM A/E ADDRESS: Street/PO Box: 194 Seven Farms Drive, Suite G City: Charleston State: SC ZIP: don.zimmerman@rmf.com TELEPHONE: AGENCY PROJECT COORDINATOR: Bob Branson ADDRESS: Street/PO Box: 97 Jonathan Lucas Street, MSC 190 City: Charleston State: SC ZIP: bransonr@musc.edu TELEPHONE: PRE-BID CONFERENCE: Yes No MANDATORY ATTENDANCE: Yes No PRE-BID DATE: June 25, 2018 TIME: 1:30 PM PLACE: 97 Jonathan Lucas St. Room 209, Charleston, SC BID DUE DATE: See Above TIME: 1:30 PM PLACE: 97 Jonathan Lucas St. Room 209, Charleston, SC BID DELIVERY ADDRESSES: HAND-DELIVERY: Attn: Bob Branson MUSC Engineering & Facilities MAIL SERVICE: Attn: Bob Branson ATTN: Kim Young MUSC Engineering & Facilities 97 Jonathan Lucas Street, Room 209 Charleston, SC Ehrhardt Street, MSC 109, Charleston, SC IS PROJECT WITHIN AGENCY CONSTRUCTION CERTIFICATION? (Agency MUST check one) Yes No APPROVED BY: (OSE Project Manager) DATE: SE-310

8 MUSC Thurmond Gazes Building Construction Documents Animal Area Chiller Replacement H SECTION VALVES FOR HVAC PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section. 1.2 SUMMARY A. Section Includes: 1. Ball valves 2. Butterfly valves 1.3 DEFINITIONS A. CWP: Cold working pressure. B. EPDM: Ethylene propylene-diene terpolymer rubber. C. NBR: Acrylonitrile-butadiene, Buna-N, or nitrile rubber. D. NRS: Nonrising stem. E. OS&Y: Outside screw and yoke. F. RS: Rising stem. G. SWP: Steam working pressure. 1.4 ACTION SUBMITTALS A. Product Data: For each type of valve. 1.5 DELIVERY, STORAGE, AND HANDLING A. Prepare valves for shipping as follows: 1. Protect internal parts against rust and corrosion. 2. Protect threads, flange faces, grooves, and weld ends. 3. Set angle and globe valves closed to prevent rattling. 4. Set ball valves open to minimize exposure of functional surfaces. 5. Set butterfly valves closed or slightly open. VALVES FOR HVAC PIPING

9 MUSC Thurmond Gazes Building Construction Documents Animal Area Chiller Replacement H B. Use the following precautions during storage: 1. Maintain valve end protection. 2. Store valves indoors and maintain at higher-than-ambient dew point temperature. If outdoor storage is necessary, store valves off the ground in watertight enclosures. C. Use sling to handle large valves; rig sling to avoid damage to exposed parts. Do not use handwheels or stems as lifting or rigging points. PART 2 - PRODUCTS 2.1 GENERAL REQUIREMENTS FOR VALVES A. Refer to valve schedule articles for applications of valves. B. Source Limitations for Valves: Obtain each type of valve from single source from single manufacturer. C. ASME Compliance: 1. ASME B for threads for threaded-end valves. 2. ASME B16.1 for flanges on iron valves. 3. ASME B16.5 for flanges on steel valves. 4. ASME B16.10 and ASME B16.34 for ferrous valve dimensions and design criteria. 5. ASME B16.18 for solder joint. 6. ASME B31.1 for power piping valves. 7. ASME B31.9 for building services piping valves. D. AWWA Compliance: Comply with AWWA C606 for grooved-end connections. E. Bronze valves shall be made with dezincification-resistant materials. Bronze valves made with copper alloy (brass) containing more than 15 percent zinc are not permitted. F. Valve Pressure and Temperature Ratings: Not less than indicated and as required for system pressures and temperatures. G. Valve Sizes: Same as upstream piping unless otherwise indicated. H. Valve Bypass and Drain Connections: MSS SP-45. I. Valves in Insulated Piping: 1. Include 2-inch stem extensions with protective sleeves that allow operation of valves without breaking vapor seals or disturbing insulation. For systems operating below 60 deg F, provide extended operating handles of nonthermal-conductive material. 2. For valves used for throttling or balancing, include memory stops that are fully adjustable after insulation is applied. VALVES FOR HVAC PIPING

10 MUSC Thurmond Gazes Building Construction Documents Animal Area Chiller Replacement H BALL VALVES A. Manufacturers: Subject to compliance with requirements, provide products by one of the following: 1. Apollo Flow Controls; Conbraco Industries, Inc. 2. Crane; Crane Energy Flow Solutions 3. Hammond Valve 4. Jamesbury; Metso 5. KITZ Corporation 6. Milwaukee Valve Company 7. NIBCO INC. 8. WATTS B. Bronze Ball Valves, Two-Piece with Full Port and Stainless-Steel Trim: 1. Description: a. Standard: MSS SP-110. b. SWP Rating: 150 psig. c. CWP Rating: 600 psig. d. Body Design: Two piece. e. Body Material: Bronze. f. Ends: Threaded or soldered. g. Seats: PTFE. h. Stem: Stainless steel. i. Ball: Stainless steel, vented. j. Port: Full. k. Handle: Steel, coated lever. C. Steel Ball Valves, Three-Piece with Full Port Stainless-Steel Trim, Class 300: 1. Description: a. Standard: MSS SP-110. b. CWP Rating: 1000 psig. c. Body Design: Three piece. d. Body Material: Carbon steel, ASTM A 216, Type WCB, Phosphate Coated. e. Ends: Threaded or Welded. f. Seats: Reinforced PTFE 15% glass. g. Stem: Stainless steel. h. Ball: Stainless steel, vented. i. Port: Full. j. Handle: Steel, coated lever, lockable. 2.3 BUTTERFLY VAVLES A. 1. ANSI Class 150 butterfly valves, with bubble tight shut-off for 285 psig differential, shall be used in lieu of gate valves in chilled water systems size 2 1/2 inches and over. 2. Butterfly valves shall be Bray Series H31 resilient seat lug body type, installed with welding neck companion flanges. Or approved equal by Milwaukee, Hammond or Crane. 3. Valves shall have semi-steel or ductile iron lug body for flanged connection with alignment bolts, holes or guides, Type 416 stainless steel one (1) piece stem, upper VALVES FOR HVAC PIPING

11 MUSC Thurmond Gazes Building Construction Documents Animal Area Chiller Replacement H and lower brass bushings, EPDM or nitrile (Buna-N) rubber liner, and aluminum bronze disc. Provide minimum two (2) inch extension neck on valves for insulated piping. 4. Pressure ratings shall be 150 pounds per square inch (psi) body; dead end bubble tight shut off for 200 pounds per square inch (psi) differential in either direction. 2.4 AIR-CONTROL DEVICES A. Manual Air Vents: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. AMTROL, Inc. b. Apollo Flow Controls; Conbraco Industries, Inc. c. Armstrong Pumps, Inc d. Bell & Gossett; a Xylem brand e. Nexus Valve, Inc. f. TACO Comfort Solutions, Inc. 2. Body: Bronze. 3. Internal Parts: Nonferrous. 4. Operator: Screwdriver or thumbscrew. 5. Inlet Connection: NPS 1/2. 6. Discharge Connection: NPS 1/8. 7. CWP Rating: 150 psig. 8. Maximum Operating Temperature: 225 deg F. B. Automatic Air Vents: 1. Manufacturers: Subject to compliance with requirements, provide products by one of the following: a. AMTROL, Inc. b. Armstrong Pumps, Inc c. Bell & Gossett; a Xylem brand d. Nexus Valve, Inc. e. Spirotherm, Inc. f. TACO Comfort Solutions, Inc. 2. Body: Bronze or cast iron. 3. Internal Parts: Nonferrous. 4. Operator: Noncorrosive metal float. 5. Inlet Connection: NPS 1/2. 6. Discharge Connection: NPS 1/4. 7. CWP Rating: 150 psig. 8. Maximum Operating Temperature: 240 deg F. VALVES FOR HVAC PIPING

12 MUSC Thurmond Gazes Building Construction Documents Animal Area Chiller Replacement H PART 3 - EXECUTION 3.1 EXAMINATION A. Examine valve interior for cleanliness, freedom from foreign matter, and corrosion. Remove special packing materials, such as blocks, used to prevent disc movement during shipping and handling. B. Operate valves in positions from fully open to fully closed. Examine guides and seats made accessible by such operations. C. Examine threads on valve and mating pipe for form and cleanliness. D. Examine mating flange faces for conditions that might cause leakage. Check bolting for proper size, length, and material. Verify that gasket is of proper size, that its material composition is suitable for service, and that it is free from defects and damage. E. Do not attempt to repair defective valves; replace with new valves. 3.2 VALVE INSTALLATION A. Valves shall be provided where indicated on the drawings and as herein specified. B. Install shut-off valves in piping where shown and where listed below: 1. To isolate all items of equipment. 2. To isolate motorized flow control valves. 3. To isolate branch lines and riser at mains. C. Install valves with unions or flanges at each piece of equipment arranged to allow service, maintenance, and equipment removal without system shutdown. D. Locate valves for easy access and provide separate support where necessary. E. Install valves in horizontal piping with stem at or above center of pipe. F. Install valves in position to allow for handwheel operation, full stem movement and stuffing maintenance. 3.3 ADJUSTING A. Adjust or replace valve packing after piping systems have been tested and put into service but before final adjusting and balancing. Replace valves if persistent leaking occurs. 3.4 GENERAL REQUIREMENTS FOR VALVE APPLICATIONS A. If valves with specified CWP ratings are unavailable, the same types of valves with higher CWP ratings may be substituted. VALVES FOR HVAC PIPING

13 MUSC Thurmond Gazes Building Construction Documents Animal Area Chiller Replacement H B. Select valves with the following end connections: 1. For Copper Tubing, NPS 2 and Smaller: Threaded ends except where solder-joint valveend option is indicated in valve schedules. 2. For Copper Tubing, NPS 2-1/2 to NPS 4: Flanged ends except where threaded valve-end option is indicated in valve schedules. 3. For Copper Tubing, NPS 5 and Larger: Flanged ends. 4. For Steel Piping, NPS 2 and Smaller: Threaded ends. 5. For Steel Piping, NPS 2-1/2 to NPS 4: Flanged ends except where threaded valve-end option is indicated in valve schedules. 6. For Steel Piping, NPS 5 and Larger: Flanged ends. 7. For Grooved-End Steel Piping except Steam and Steam Condensate Piping: Valve ends may be grooved. 3.5 CHILLED-WATER VALVE SCHEDULE A. Ball Valves: 1. Pipe NPS 2 and Smaller: Bronze ball valves, two piece, with full port and stainless-steel trim. a. Valves may be provided with solder-joint ends instead of threaded ends. END OF SECTION VALVES FOR HVAC PIPING