ADDENDUM. Project: BYU-I Smith Building Chiller Replacement Project No.: Addendum No.: 1

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1 ADDENDUM Project: BYU-I Smith Building Chiller Replacement Project No.: Addendum No.: 1 Project Address: BYU-Idaho Operations Building Rm. #213, Rexburg, Idaho Date: 2/18/16 Owner: BYU-Idaho From (Architect): Engineered Systems Assoc., Inc., 1355 E. Center St., Pocatello, ID Instructions to Prospective Bidders: This Addendum forms a part of the Contract Documents and modifies the original Bidding Documents and/or prior Addenda as noted below. All conditions, requirements, materials and workmanship are to be as described in the Contract Documents unless specifically stated otherwise. This Addendum consists of 2 page(s), and 6 attached items dated February 18, Changes to Conditions of Contract: a. See revised Invitation to Bid as submitted through E-Builder. 2. Changes to Specifications: a. See attached New Bid Form with Alternate Bid- All Contractors shall use this Bid Form to submit bids. b. See attached Section 0768 Steam Supply and Condensate Return Piping Insulation. c. See attached Section Steam and Condensate Piping. d. See attached Section Condensate Pump. e. See attached Section Steam and Condensate Specialties. 3. Changes to Drawings: a. See attached Sketch to rebuild steam pressure reducing station. This will be Bid Alternate #1. b. Sheet M1.1: i. Reference Note 12. In addition to relocating the two heating water expansion tanks, Contractor shall also relocate the heating water glycol feed tank next to the expansion tanks. Extend all piping as required and reconnect. See picture below. CON-MIS-0044-US Rev. B 13 November 2002 Page 1 of 2

2 ii. See attached revised floor plan for additional work under Base Bid (Note 12) and new work to be bid as Alternate Bid #1 (Note 16). iii. See also attached Steam Piping Diagram and Condensate Pump Schedule (Alternate #1). a. Sheet E1.1: i. Provide a 20A., 2P breaker in new panel PP for duplexed condensate pumps. Install a 3/4"c., 3-#12 + gnd to pump control panel and make all required connections. See Mechanical Item 3a above. ii. Mechanical Contractor to relocate heat glycol fill pump. See Item 3b above. Electrical Contractor shall disconnect power and extend conduit and wiring as required for new location. Field verify conduit and wire size. End of Addendum #1 CON-MIS-0044-US Rev. B 13 November 2002 Page 2 of 2

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8 BYU-I Smith Chiller Replacement January STEAM SUPPLY AND CONDENSATE RETURN PIPING INSULATION PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings, General Provisions of Contract, including General and Supplementary Conditions and other Division 1 Specification Sections, and Section apply to this Section. 1.2 SUMMARY A. Furnish and install insulation on piping mains, branches, risers, fittings, and valves, pump bodies and flanges as described in Contract Documents. PART 2 - PRODUCTS 2.1 MATERIAL A. 6 lb./cu.ft. heavy density fiberglass with fire retardant vapor barrier jacket with self sealing laps. Thickness shall be 1-1/2 inches on heating supply and return lines. B. Approved Manufacturers: 1. Owens-Corning Fiberglass heavy density with ASJ-SSL jacket 2. Equals by Johns-Manville or CTM. 3. Zeston covers for valves and fittings. PART 3 - EXECUTION 3.1 INSTALLATION A. Pipes: 1. Install in accordance with manufacturer's directions on clean dry pipes. 2. Butt joints firmly together. 3. Seal vapor barrier longitudinal seam overlap with vapor barrier adhesive. 4. Wrap butt joints with four inch strip of vapor barrier jacket material cemented with vapor barrier adhesive. 5. Wrap all steam and condensate piping with metal jacketing. 6. Finish with bands applied at mid-section and at each end of insulation. B. Valves & Fittings: 1. Insulate and finish by one of following methods - 2. With hydraulic setting insulating cement, or equal, to thickness equal to adjoining pipe insulation. 3. With segments of molded insulation securely wired in place. 4. With prefabricated covers made from molded pipe insulation finished with vapor barrier adhesive. 5. With Zeston covers and factory supplied insulation diapers. 6. Finish fittings and valves with four ounce canvas and coat with vapor barrier adhesive or Zeston covers. END OF SECTION STEAM SUPPLY AND CONDENSATE RETURN PIPING INSULATION

9 BYU-I Smith Chiller Replacement January 2016 SECTION STEAM AND CONDENSATE PIPING PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings, General Provisions of Contract, including General and Supplementary Conditions and other Division 1 Specification Sections, and Section apply to this Section. 1.2 SUMMARY A. Furnish and install steam and condensate piping as described in Contract Documents. 1.3 QUALITY ASSURANCE A. Cleaning System: 1. Thoroughly clean equipment, piping, and other material under this contract. 2. Remove rust, scale, and other dirt before painting or covering. 3. Remove rust, scale, and other dirt before operating the system. B. Operate heating system at 10 psi for at least 6 hours, then - 1. Fill boiler to the top with water to wash any film, oil or grease over the top. 2. Drain boiler and refill to proper level with fresh water. 3. Use 1 pound tri-sodium phosphate for every 100 gallons of water during cleaning operation. C. Tests: 1. No piping systems shall be covered or concealed until hydraulically tested at 50 psi in excess of maximum working pressure (100 psi minimum) and inspected and approved by Architect and any local inspector having jurisdiction. 2. When directed by Architect or Engineer, Contractor shall conduct an operating test on any piece of equipment to demonstrate its capacity and operating characteristics. PART 2 - PRODUCTS 2.1 MANUFACTURED UNITS A. Steam Supply Piping 1. Schedule 40-A-120 black steel piping. 2. Pipe ends shall be reamed out before being made up into fittings. 3. Use graphite and oil applied to male threads only in making pipe joint fittings. 4. Fittings shall be standard weight 150 lb. malleable iron screwed pattern up to 2 1/2 inches. 5. Piping over 2 1/2 inches shall be welded with full weld fittings. B. Condensate Piping: 1. Schedule 80 black steel piping. 2. Pipe ends shall be reamed out before being made up into fittings. 3. Use graphite and oil applied to male threads only in making up pipe joint fittings. 4. Fittings shall be standard weight 300 lb. malleable iron screwed pattern up to 2 1/2 inches. 5. Piping over 2 1/2 inches shall be welded with full weld fittings. STEAM AND CONDENSATE PIPING

10 BYU-I Smith Chiller Replacement January 2016 PART 3 - EXECUTION 3.1 INSTALLATION A. Heating piping shall run generally as indicated on the Drawings. B. Pipe ends shall be reamed and burrs removed. C. Unions shall be installed where necessary and on both sides of equipment and drip traps. D. Install float and thermostatic drip traps in sizes shown on drawings. 1. Install at ends of steam mains. 2. Install on raises in steam mains. 3. Install dirt strainer and gate valve ahead of each drip trap. E. Runs of main piping shall start as high as possible. F. Keep as close to the ceiling as possible. G. Make sufficient allowance for grade and branches to be taken off top at 45 degree angles. H. Steam and return mains shall be graded downward in direction of flow 1 inch in 20 feet. I. Runouts and branches that grade back against flow of steam shall be graded 1/4 inch per foot. END OF SECTION STEAM AND CONDENSATE PIPING

11 BYU-I Smith Chiller Replacement January 2016 SECTION CONDENSATE RETURN PUMP PART 1 - GENERAL 1.1 RELATED DOCUMENTS A. Drawings, General Provisions of Contract, including General and Supplementary Conditions and other Division 1 Specification Sections, and Section apply to this Section. 1.2 SUMMARY A. Furnish and install a condensate return pump as described in Contract Documents. PART 2 - PRODUCTS 2.1 MANUFACTURED UNITS A. Simplex packaged unit with duplex heavy cast iron receiver with supports and two pumps all piped on one base. B. Each pump shall have a capacity as shown and shall be operated from float switches, magnetic starter, and alternator provided with the pump and mounted on pump assembly. C. Approved Manufacturers: 1. Ship Co 2. Or Approved Equal PART 3 - EXECUTION 3.1 INSTALLATION A. Install check valve and gate valve on pump discharge. B. Run vent line from receivers and terminate to exterior of building. END OF SECTION CONDENSATE RETURN PUMP

12 BYU-I Smith Chiller Replacement January 2016 SECTION STEAM AND STEAM CONDENSATE SPECIALTIES PART 1 - GENERAL 1.1 SUMMARY A. Includes But Not Limited To: 1. Furnish and install steam and condensate specialties described in Contract Documents. B. Related Requirements: 1. Section : Common HVAC Requirements. 2. Sections Under Heading: Boilers. PART 2 - PRODUCTS 2.1 ACCESSORIES A. Manufacturers: 1. Manufacturer Contact List: a. Armstrong, Three Rivers, MI b. Barnes & Jones Inc, Randolph, MA c. Hoffman Controls Corp, Dallas, TX d. Industrial Steam, Oak Brook, IL e. Penn Separator Inc, Brookville, PA f. Shipco Pumps, Shippensburg, PA g. Spirax Sarco Inc, Allentown, PA h. Weben-Jarco Inc, Dallas, TX i. Wessels Co, Greenwood, IN B. Materials 1. Float And Thermostatic Traps: a. Suitable for 100 psig (989 kpa) steam working pressure. Install in ends of steam mains, at points where steam main rises, and at all other points where shown or required for proper operation of system. b. Materials shall be as follows: 1) Float: Copper alloy. 2) Float Valve And Seat: Monel metal or stainless steel. 3) Body: Renewable gray cast-iron, covers removable without disturbing piping connections. c. Capacities of traps shall be with 5 psig (34.5 kpa) pressure at trap inlet and differential pressure across trap of 2 psig (13.8 kpa) unless otherwise noted. d. Category Four Approved Products. See Section for definitions of Categories. 1) Spirax / Sarco: Model FTI ) Or Approved Equal. 2. Drip Pan Elbow: a. Cast iron. b. Suitable for working pressure of 125 psig (862 kpa) steam. 3. Flash Tank: a. Welded steel construction. b. ASME code labeled for 125 psig (862 kpa) working pressure. c. Category Four Approved Products. See Section for definitions of Categories. 1) Weben-Jarco. 2) Wessels Co. 3) Or Approved Equal. STEAM AND STEAM CONDENSATE SPECIALTIES

13 BYU-I Smith Chiller Replacement January 2016 C. Fabrication: 1. Flash Tank: Clean tank and paint with one coat of zinc chromate primer. PART 3 - EXECUTION: Not Used END OF SECTION STEAM AND STEAM CONDENSATE SPECIALTIES

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