MCSD Administration Remodeling at Support Services Center, 1002 S. 3 rd Ave., Marshalltown, Iowa TSP C/N:

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1 September 13, 2013 Re: MCSD Administration Remodeling at Support Services Center, 1002 S. 3 rd Ave., Marshalltown, Iowa TSP C/N: SUBJECT: SECTION ADDENDUM NUMBER TWO 306 S 17 th Ave Marshalltown, IA phone (641) fax (641) Architecture Engineering The following clarifications, modifications and/or additions are issued to extend, supplement, clarify, or modify Bidding and Contract Requirements as contained in the Bidding and Contract Documents as originally issued. The clarifications, modifications, deletions and/or additions contained herein shall take precedent over drawings, specifications and previously issued addenda. All requirements of the originally issued Bidding and Contract Documents or previous Addenda, which are not specifically altered by this Addendum, shall remain in full force and effect. The Contractor shall acknowledge receipt of this Addendum as provided for on Document Bid Form. The Pre-Bid Conference was held as at the site at the Support Services Center (MLA), 1002 S. 3 rd Ave., Marshalltown, Iowa on Tuesday, September 10, :30 p.m. as scheduled. Significant items of discussion are included in this subsequent Addendum. Contractor Attendance: Generals: Michael Huff, Huey -Dean Snyder Construction; Jeff Buckley-Lansink Construction; Wes Bryngelson-Brycon LLC, Tom Supercynski- Woodruff Construction; Robert Boyer-Pro Commercial; Doug DeMealenaere-Garling Construction; John Mahlstede- Hay Construction Services; Ron Beason- Lang Construction Electricals: Carroll DePenning, Jason Selk-DPAI; Paul Johnson, Sam Nicklos-NAI; Mechanicals: Jim Dunston-Young Plumbing & Heating; Chad Gauthier-B&G HVAC; Mike Cusnell- Tony s Plumbing, Chris Harrison-Advanced Sheet Metal; Denny Bartlett- Kapaun&Brown; Dave Beenen-A.J. Allen; Other: Joe Moench-Woodman Controls; Chet M. Summit Fire Sprinkler; Jerry Brown, Dean Pearson-SCI Communications; A. Division 00 and 01 Items: 1. Pre-Bid Conference Attendance Not Mandatory a. Reference: Documents Notice of Letting, Pre-Bid Conference b. Description: As discussed at the Pre-Bid Conference, attendance at the Pre-Bid Conference, though highly encouraged, is not mandatory and no evidence of attendance is required to be submitted with the Bid. Those who did not attend, may make individual site visits as scheduled with the Owner s Representative. Marshalltown, IA Marshall, MN Minneapolis, MN Rochester, MN Omaha, NE Rapid City, SD Sioux Falls, SD Sheridan, WY B. General Items: 1. Sheet Names: a. Reference: Drawing Sheets: AD102 b. Description: The reference note at the doors to be demolished at the entrance into Vestibule 101 should be note #10 not note # Room B17 Ceiling Modifications: a. Reference: Drawing Sheets: AD101, AP101, AC101 b. Description: Due to the scheduled demolition of the south wall and the construction of a new south wall, the ceiling grid will need to be expanded to fit the new space. Reinstall and add new ceiling tiles as required to fill the new grid. 3. Ceiling Access: a. Reference: Drawing Sheets: AP101, AP102, MP101, EP101, EP102 b. Description: Due to the scheduled changes and additions to the existing mechanical and electrical systems. Remove the existing SAT ceiling systems and / or FRP Ceiling Panels as at Lower level, as required to perform work, reinstall tiles / panels when work is completed, replace all tiles damaged due to the construction process. TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 1 of 7 9/12/2013

2 4. Door Numbers: a. Reference: Drawing Sheets: AP101, AP102; Specifications: Door Hardware; Supplemental Drawing; ADD #02 A3. b. Description: Some of the door tags got corrupted and miss-labeled. 1) B20 should be B44 2) B25 should be B25B (at IT MDF B25B) 3) B43 should be B46 (at office B46) 4) B43 should be B47 (at office B47) 5) B37 should be S4-1, 6) B18A should be 101A, 7) B18B should be 101B, 8) B20A should be 112A, 9) B20B should be 112B 5. Door Schedule Remarks: a. Reference: Drawing Sheets: A-601; Specifications: Alternates b. Description: 1) Doors 101A & 101B should reference remark #7 in lieu of remark #1 a) Remark #7 : See Alternate #3 2) Doors B39D & B41D should reference remark #2: See alternate #1 6. Door Openers: a. Reference: Drawing Sheets: AP102; Supplemental Drawings: ADD #02-A3, Specifications: Alternates, Aluminum Framed Entrances and Storefronts, Door Hardware, Automatic Door Openers, b. Description: Under Alternate G-3, door 101A and the corresponding existing interior vestibule door shall both receive new automatic door openers per Section The Electrician shall provide power to a new junction box above the ceiling at each door location. The existing interior door has been assigned door number 101C. 7. Aluminum Entrances: a. Reference: Drawing Sheets: AP102; Specifications: Alternates, Aluminum-Framed Entrances and Storefronts. b. Description: All aluminum storefronts shall be: Kawneer 451UT, Manko 5450i, Tubelite TU24000, or equal. 8. Window Blind Controls a. Reference: Drawing Sheets: A-602; Specification Sections: Aluminum Windows b. Description: The tilt controls shall be permanent knurled knobs. At fixed glazing (no screens) the knobs shall be equal to WACI standard Straight knobs. Removable tools or wrenches will not be accepted. At operable windows (with screens) the knobs shall be equal to WACI Extended Straight knobs and shall penetrate the screen at a rubber grommet hole sized for the knob penetration. 9. IT Department (B43) Changes: a. Reference: Drawing Sheets: AD101, AP101, AC101; Supplemental Drawings: ADD #02-A1, ADD #02-A2 b. Description: The South wall of room B43 shall be moved farther south, the drinking fountain in locker room B41 moves to the adjacent chase wall, a new stub wall is added to divide the new kitchenette casework from the IT work bench area and added wall cabinets. Door B41C moves to the adjacent wall and switches form a LHR to a RHR operation. See attached Supplemental Drawing(s). 10. Roof/Ceiling Fire Membrane: a. Reference: Drawing Sheets: AC104, MH104; Supplemental Drawing: ADD #02-A4 b. Description: On the third floor the new fire membrane shall be raised up between the joist spaces which contain the new main ducts coming off the new fan coil units. Attach the 5/8 gypsum board to the bottom of deck between these joist, fully wrap all joists and beams. TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 2 of 7 9/12/2013

3 C. Mechanical Items: 1. Duct Airflow Measuring Station Specification: Add the following Paragraph 2.11 to Section : 2.11 AIRFLOW MEASURING STATIONS A. Duct Airflow Station: 1. Frame: Welded galvanized-steel frame. 2. Sensing Probes: Multiple air traverse probes mounted within the station frame containing multiple total and static pressure sensors arranged in equal areas across the station s face area. 3. Sensors: Located along the exterior surface of the sensing probes, and internally connected to averaging manifolds. The flow sensors shall be the offset (Fechheimer) type for static pressure and chamfered impact type for total pressure measurement. 4. Pressure and Flow Transmitter: Multiprocessor-based transmitter capable of receiving flow signals from an air flow station and producing an output linear and scaled for air volume, velocity, and differential pressure. Transmitter shall contain a digital display for one transmitter output, and transmit an air flow volume output signal to the BMS. 5. Accuracy: Transmitter shall operate within the range of 0.05 to 25.0-inches wg. and produce a signal with an accuracy of 0.25 percent of natural span. Air flow station shall have an accuracy of plus or minus 2.0 percent of actual air flow. 6. Air Monitor Corporation Volu-probe/VS with a Velton DPT 2500-plus transmitter. 7. Ebtron, Inc. Gold Series Thermal Dispersion Airflow / Temperature Measurement Devices with a C Density and with a Model GTA116-PC transmitter may be utilized if equivalent performance can be provided. 2. Cabinet Unit Heaters: a. Reference: Drawing Sheet MD101. b. Description: Existing cabinet unit heaters in Locker Rooms B39 and B41 will remain including all piping and controls. Do not remove. Keynote 2 is removed. 3. Ductwork Revisions: a. Reference: Revised Drawing Sheets MH103 and MH104 (attached). b. Description: Revisions to grilles, ductwork and dampers. 4. HVAC Piping Revisions: a. Reference: Revised Drawing Sheets MP101, MP103 and MP104 (attached). b. Description: Added references to details, added zone shutoff and balancing valves and relocated thermostats. 5. Clarification on Chilled Water Flow Diagrams: a. Reference: Drawing Sheet M-501, New 11 x 17 Sheet ADD2-M1 (attached). b. Description: 1) Clarified the equipment being piped with chilled water for this project. Attached Sheet ADD2-M1. 2) Added buffer tank to chiller piping diagram. Attached Sheet ADD2-M1. 6. Revised Details: a. Reference: Drawing Sheet M-502, Revised Sheet M-503 (attached), New 11 x 17 Sheet ADD2-M2 (attached). b. Description: 1) Delete Detail D2 on Sheet M ) Revision to Detail C1 on Sheet M-502. Attached Sheet ADD2-M2. 3) Revision to Detail A3 on Sheet M-502. Attached Sheet ADD2-M2. 4) Add Detail C2 on Sheet M ) Delete Details A4 and A5 on Sheet M ) Remove note and revise piping on Details B4 and B5 on Sheet M Revised Schedules: a. Reference: Revised Drawing Sheet M-601 (attached). b. Description: 1) In the Diffuser, Register & Grille Schedule delete Grille G3. 2) In the Plumbing Fixture Schedule delete Fixtures P-7 and P-7A and add Fixtures P-6 and P-6A. 3) In the Louver Schedule, remove louvers L-B-1, L-B-2, L-B-3 and L-B-4. TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 3 of 7 9/12/2013

4 8. References on Fire Sprinkler Drawings: a. Reference: Drawing Sheets FD103 and FD104. b. Description: 1) Change the reference in Keynote 1 on Sheet FD103 to read Refer to Drawing FS103. 2) Change the reference in Keynote 1 on Sheet FD104 to read Refer to Drawing FS Move Fire Sprinkler Heads: a. Reference: Drawing Sheet FS103. b. Description: Move sprinkler heads at movable partition in Rooms 208 and 210 farther apart. 10. Remove Floor Cleanouts From 2 nd Floor: a. Reference: Drawing Sheet PL102 and Revised Drawing Sheet PL103 (attached). b. Description: Put cleanouts at the ends of the pipe mains and remove the pipes going up to floor cleanouts on the 2 nd Floor. 11. Add Recirculating Domestic Hot Water: a. Reference: Revised Drawing Sheet PL103 (attached). b. Description: Add recirculating hot water piping and connect to main riser. 12. Revise HVAC Condensate Piping: a. Reference: Revised Drawing Sheets PL103 and PL104 (attached). b. Description: Condensate piping changed to allow more piping to run in 2 nd Floor ceiling. 13. Change to Lavatory Number: a. Reference: Revised Drawing Sheets PL103, PL104 and P-601 (attached). b. Description: Lavatory P-3 is changed to P-3A. 14. Revisions to Plumbing Risers: a. Reference: Revised Drawing Sheet P601 (attached). b. Description: 1) Added Fixture P-5 to Riser A1. 2) Revised Risers A1 and D1 to add RHW piping. 3) Revised P-3 to P-3A on all applicable risers. 4) Deleted Risers A4, B4 and C4. D. Electrical Items: 1. IT Department (B43) Changes: a. Reference: Drawing Sheet EL101, EP10, E-604; Supplemental Drawings: ADD2-E1, ADD2-E2, & ADD2-E3 b. Description: 1) Revise lighting layout in this room per attached drawing ADD2-E1. 2) Revise power & communications layouts in this room per attached drawing ADD2-E2. 3) Revise panel schedule per attached drawing ADD2-E3. 2. Lighting Schedule: a. Reference: Drawing Sheet E-604 Electrical Schedules b. Description: Light fixture schedule add light fixture type U2. GM Lighting fixture UCLED-24-WH. 24-inch LED under-cabinet light with integral on/off rocker switch. 3. Floor Poke Thrus: a. Reference: Drawing Sheet: EP104 (EP104R); b. Description: In Room 302, modify the Keyed Note 2 (there are two of them) to Keyed Note Cord Reels: a. Reference: Specification: Wiring Devices b. Description: Add paragraph 2.9 as follows: 2.9 CABLE (CORD) REELS 1. Manufacturer Hubbell 2. Device: a) Power: 25 feet of 14/3 cord with duplex receptacle. Circuit breaker that feeds the reel shall be GFI. b) Data: 25 feet of Category 5e UTP TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 4 of 7 9/12/2013

5 5. Fire Alarm System Changes: a. Reference: Drawing Sheet E-603; b. Description: 1) Add new Fire Alarm Cabling Type, labeled as follows I. UTP CATEGORY 6 CABLE (REFER TO ) 2) Change fire alarm cable called out by keyed notes 1, 2, and 3 on the drawing to type #/I 3) Add fire alarm cable designator between FACP and RCP s to read #/D 4) Modify keyed note 3 to read 3. BACNET/LON GATEWAY COMMUNICATION CONNECTION TO BUILDING AUTOMATION SYSTEM 5) Modify keyed note 9 to read 9. PROVIDE CONNECTION AND INTEGRATION OF EXISTING FIRE ALARM DEVICES, USING EXISTING FIRE ALARM CONTROL PANEL AS PULL BOX. PROVIDE COMPONENTS (LINE CARDS, CONTACTS, COMMUNICATION CARDS, ETC.), REPLACEMENT OF ALL EXISTING ADDRESSABLE DEVICES (REFER TO EXISTING PLAN DRAWINGS, ASSUME A MINIMUM OF 50 ADDRESSABLE DEVICES), AND PROGRAMMING NECESSARY FOR A FULL AND OPERATIONAL SYSTEM. 6) Modify paragraph 3.4.B as read as follows: B. the following zone outputs: 1. (1) per staff assist work areas (quantity of 4) 2. (1) Zone for 2nd level hallways/lobbies 3. (1) Zone for 3rd level hallways/lobbies 4. (1) Zone for board room 5. (1) Zone Exterior 6. (1) All Call 7. Accommodations for future 14 zones when existing building is remodeled. 6. Security System: a. Reference: Drawing Sheets: EP102, E-607 (Access Control Schedule); b. Description: Door Tag changes, added doors. 1) Access Control Schedule (E-607) modify responsible contractor by Division of ELECTRIC POWER SUPPLY to division 28 in lieu of division 8. 2) B37 should be S4-1, 3) B18A should be 101A 4) B18B should be 101B 5) Vestibule 101 southeast interior door shall be labeled 101C, and shall be added to the access control schedule with the following information a) Provide door with Electric Power Supply, Door Position Switch, Electric Power Transfer, Request to Exit, Card Reader, Automatic Operator, Intercom, Emergency Release Button, and Notes INTERCOM AND EMERGENCY RELEASE TO TIE BACK TO CONTROL IN OFFICE Video Surveillance: a. Reference: Specification: Video Surveillance; Drawing Sheets: E-607 (Video Surveillance Schedule); b. Description: Add paragraph 2.1.A.6 & 7 as follows: 6. Camera Lens a. ImmerVision Enables Panamorph Video Interpreter a. ImmerVision Panamorph Player c. Description: Modify Article 2.6 as follows: 2.6 NETWORK VIDEO MANAGEMENT STORAGE (SAN) A.The Video Management Storage shall allow the use of off-the-shelf computer components that meet the minimum performance requirements. B.The Performance requirements for the SAN are as follows: 1. Form Factor: Rackmount a. Hard Drives: 2TB NL-SAS Hot Swappable (sized as required by video criteria) b. Connectors: iscsi c. Network Interface: 10GbE d. Operating System: Windows 2000 Server, Windows Server 2003, Windows Server 2008, including Hyper-V e. RAID 5 Compliant f. Network Interface: 10GBASE-T (RJ-45) TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 5 of 7 9/12/2013

6 d. Description: Add Article as follows: SAN Sizing A. Contractor shall provide storage capacity sized based on the following criteria 1. All new cameras provided as part of this project and integration of existing cameras. 2. Event based recording 3. 7 frames per second 4. H.264 Compression 5. 4 CIF days worth of recorded storage 8. Section Title Correction: a. Reference: Document Table of Contents, Section b. Description: The Section was titled incorrectly (should be titled Security Management System per Table of Contents and not Video Surveillance. E. Sitework and Utility Items: No Items Approved Product Substitutions: Contingent upon strict compliance with the drawings and specifications, the following are Architect / Engineer Approved Equal Manufacturers and or Products: Items shown in bold type are new as of this Addendum, items shown in normal type are from previous Addenda. A. General: 1. Section : Tubelite TU Section : Record-USA Section : Scranton Products 4. Section : Moderco 700 Series; Model 741 B. Mechanical: 1. Drawing M601 Buffer Tank: Taco, Laars and Wheeler 2. Section : a. Fan Coil Units: Airtherm, International Environmental and Zehnder Rittling 3. Section : 4. Balancing Valves: Pro Hydronic Specialties C. Electrical: 1. Section : a. Stauss LLC: 1). Lumax; A, A1, A2, A3, A3D, A3E, AE, B1, B2, F, H4, L1, X2, X4 2). Spectrum; D1 3). Mule; E1, E2, F 4). Forum; L1, W2 5). Fluorescent Lighting Corp.; W 6). Day-o-Lite; W1 b. M&M sales: 1). Lithonia; A,AE, A1, A1E, A2, A3, A3D, A3E, B1, B2, E1, E2, F, H4, H4E, X2, X4 2). Kurtzon; W 3). PAL; W1 4). Atlantic; D1 5). Axis; J10 6). Finelite; G1, G2, W1 7). Nulite: W2 c. Lighting Solutions of Iowa: 1). Bruck: P THIS ADDENDUM INCLUDES: Division 00 & 01 Items A1; General Items B1 thru B10; Mechanical Items C1 thru C14; Electrical Items D1 thru D7; Sitework & Utility Items None; New or Re-Issued Specification Sections None; New or Re-Issued Drawing Sheets MH-103, MH-104, MP-101, MP-103, MP-104, PL-103, Pl-104, P-601, M-503, M-601; Supplemental Drawings ADD #02-A1, ADD #02-A2, ADD TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 6 of 7 9/12/2013

7 #02-A3, ADD #02-A4, ADD #02-M1, ADD #02-M2, ADD #02-E1, ADD #02-E2, ADD #02-E3. Bidding Documents may be ordered and Current Plan Holders List may be viewed at or by contacting Action Reprographics at Issued by, TSP, Inc. David D. Schulze, AIA Encl.: As Noted Above Cc: All Plan Holders, All Plan Centers, Design Team, Rick Simpson. TSP, Inc. MCSD Administration Remodeling Addendum Two DDS Page 7 of 7 9/12/2013

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