Addendum__1.pdf

Date: February 2, 2018

To: Kast, Craig; MSgt Shanks, Stephen; Capt Sanders, Adam

Subject: Addendum No. 1

Project: 187TH Squadron Operations Facility

Job #: SSL# 10065.01

ANG# FAKZ 059173

From: Jeffrey Bazzell

The plans and Specifications of the subject project, dated June 2010 are amended as follows: (Where there are conflicts between the plans and specifications and the addendum, this addendum shall govern)

Item No. 1: Response to RFI Q1: A Commissioning Agent will be procured directly by the government. The contractor will be accountable for those responsibilities outlined in specification section 01 9113 – General Commissioning Requirements, and for compliance with the Commissioning Plan and correction of deficiencies, re-inspection and re-testing, as applicable at no extra cost to the Owner.

Item No. 2: Response to RFI Q4: Refer to Structural Sheet S0.1, General Notes, Cold-formed Steel Trusses. Trusses shall be designed to meet the requirements of UFC 4-010-01. Refer to Landscape Plan A0.1 for standoff distances from base perimeter and parking lot.

Item No. 3: Refer to specification section 31 0200 “Erosion and Sedimentation

Controls”, part 2.04, paragraph B. Delete this paragraph in its entirety and replace with the following paragraph.

B. Contractor shall obtain a City of Montgomery Land Disturbance

Permit.

Item No. 4: Refer to specification section 00 0102 “Project Information and Summary”, part 1.02. Delete the first sentence of this paragraph in its entirety and replace with the following sentence.

SQUADRON OPERATIONS FACILITY ADDENDUM NO. 1

“500 calendar days from notice to proceed to substantial completion, this is in addition to 30 days for the punch list to be completely accomplished.”

Item No. 5: Refer to specification sections 09 6900 “Access Flooring” and 10 2119

“Demountable Partitions”. Haworth, Inc. is an approved manufacturer for access flooring and demountable partitions subject to full compliance with the plans and specifications.

Item No. 6: Response to RFI Q10: Refer to Electrical Sheet E1.1. Delete this sheet in its entirety and replace with the attached Sheet E1.1 which includes revision P1 #3 01-29-18 stated in title block. Add the attached Mechanical Sheet, MS2.0 – Mechanical Site Plan, to the contract documents. Add attached specification, 23 2110 – Underground Hydronic Piping, to the contract documents.

Item No. 7: Refer to specification section 08 1416 – Flush Wood Doors. Eggers

Industries shall be considered a preapproved manufacturer provided full compliance with the plans and specifications.

Item No. 8: Refer to specification section 08 7100 – Door Hardware.

Refer to section 2.02 – Hanging Devices. Stanley Hardware shall be an approved manufacturer provided full compliance with the plans and specifications.

Refer to 2.06; A – Mortise Locksets. Stanley / Best Access Systems – 40H Series shall be considered an approved manufacturer provided full compliance with the Plans and specifications.

Refer to 2.06; B – Cylindrical Locksets. Stanley / Best Access Systems – 40H Series shall be considered an approved manufacturer provided full compliance with the Plans and specifications.

Refer to 2.11 - Conventional Exit Devices. Precision Hardware – Apex 2000 Series shall be considered an approved manufacturer provided full compliance with the plans and specifications.

Refer to 2.12 – Door Closers. Stanley Closers = D-4, 55, 0 Series shall be an approved manufacturer provided full compliance with the plans and specifications.

Item No. 9: Refer to specification section 09 6800 – Carpeting. Delete part 2.01 and

2.02 entirely and replace with the flowing:

2.01 Manufactures

A. Carpet:

1. Basis of Design: Shaw Contract

2.02 Carpet

A. Carpet Type Broadloom (for use at tiered fixed seating in Mass

Briefing if Bid Option is Awarded).

1. Style Name: Gradient

2. Style Number: 5A153, color as selected by architect from manufacturers standard colors.

3. Construction: Graphic Loop

4. Fiber: Eco Solution nylon

5. Dye Method: 100% solution dyed

6. Primary backing: Synthetic

7. Secondary backing: Classicbac

8. Protective treatments: ssp shaw soil protection

9. Warranty: Lifetime commercial

10. Product size: 12 feet

11. Guage: 1/8 inch

12. Sitches: 12 per inch

13. Finished pile thickness: 0.098 inches

14. Average density: 11020 per cu.yd.

15. Total thickness: 0.278

16. Tufted weight: 30oz/yd2

17. Antimicrobial: passes (AATCC-174)

18. Pill test: Pass

19. Radiant panel: Class 1

B. Carpet Type Modular Tile:

1. Style Name: Captivate

2. Style Number: 59554

3. Construction: Multi-level pattern loop

4. Fiber: eco solution nylon

5. Dye Method: 100% solution dyed

6. Tufted Weight: 19.0 oz/yd2

7. Gauge: 1/12

8. Stitches per inch: 9.0

9. Finished pile thickness: 0.093 in.

10. Average density: 7,355 oz/yd3

11. Product size: 24 x 24 in

12. Secondary backing: eco worx

13. Flooring radiant panel: ASTM E 648 class 1

14. Warranty: Lifetime commercial

Item No. 10: Refer to sheet C2.0, Site Demolition Plan: Delete requirement for Building 1306 to be removed. Building has already been removed.

Item No. 11: Sheet C5.0, Site Utilities Plan:

1. Between existing sanitary sewer manhole SSMH#8 and new sanitary manhole SS MH-3, replace existing 8-inch clay pipe with new 8-inch sewer pipe.

2. At existing sanitary manhole SSMH #8, cut and plug all existing laterals entering manhole that have been abandoned. For bidding purposes, assume 3 laterals.

Item No. 12: Refer to specification section 04 7200. Russell Cast Stone, Inc shall be considered an approved manufacturer provided full compliance with the plans and specifications.

End of Addendum #1

SCALE: 1"=30'-0"

E1.1 a b c d e f g h i j

Sheet Number

Sheet Title

Project Title

Architects & Interior Designers

1115 South Court Street

Montgomery, AL 36104

334. 263. 5162 sslarch.com

Job Number

Date

Drawn By

Checked By

Revised

2/7/2017 11:17:08 AM

10065.01

JUNE 2017

JBG

JBG

PI #3 01-29-18

A

E1.1SCALE: 1" = 30'-0"

30' 15' 0 30 60FT

GRAPHIC SCALE

HHB Engineers, P.C.

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10065.01

JANUARY 2018

a b c d e f g h i j a b c d e f g h i j

Sheet Number

Sheet Title

Project Title

S e a y

S e a y i t c h f i e l d

A r c h i t e c t s

Architects & Interior

Designers

1115 South Court Street

Montgomery, AL 36104

334. 263. 5162 sslarch.com

Job Number

Date

Drawn By

Checked By

Revised

TYPE B-2

PRE-FINAL DESIGN

SUBMITTAL

MS2.0

M E

C H

A N

I C

A

S

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P L

A N

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BLDG. 1305

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RD

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RD

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%%USQUADRON OPERATIONS FACILITY

AutoCAD SHX Text x

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MS2.0

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MS2.0

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AutoCAD SHX Text 1" = 20'

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MECHANICAL SITE PLAN

AutoCAD SHX Text N

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BLDG. 1305

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RD

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%%USQUADRON OPERATIONS FACILITY

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REMOVE EXISTING CHILLED WATER PIPING

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EX 3" CWS/R

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RELOCATE EXISTING YORK YCAL0066 AIR COOLED CHILLER (60 TON)

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SEE DETAIL A/MS2.0MS2.0

AutoCAD SHX Text NOTE: INTERCEPT EXISTING CONTROL : INTERCEPT EXISTING CONTROL CIRCUITS (TWO 3/4" CONDUITS) AS REQUIRED. PROVIDE NEW CONTROL CABLE FROM MECH. ROOM TO CHILLER, NO SPLICES.

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MS2.0

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MS2.0

AutoCAD SHX Text 1/8" = 1'-0"

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BUILDING 1305 PLAN

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AutoCAD SHX Text N:\2016JOBS\216075\DRAWINGS\MECH\REDESIGN SQUAD OPS FACILITY DANNELY FIELD\SHEETS\MS2.0 MECHANICAL SITE PLAN.DWG

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1/30/2018 1:44 PM

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KEITH NICHOLS

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PRATTVILLE, AL 334/358-2707

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CONSULTING ENGINEERS

AutoCAD SHX Text T

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6" MIN. ALL AROUND UNIT

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MS2.0

AutoCAD SHX Text A

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NOT TO SCALE

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CHILLER CONNECTION DETAIL

AutoCAD SHX Text 6" THICK 3000 P.S.I. CONCRETE EQUIPMENT PAD WITH 6"x6" 10 GAGE WELDED WIRE FABRIC MIDWAY.

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FLOW SWITCH

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EXISTING CHILLER - RELOCATED

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FLEXIBLE PIPE CONNECTION (TYP.)

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TEMP. GAUGE (TYP.)

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PRESS. GAUGE W/SNUBBER & COCK (TYP.)

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BUTTERFLY VALVE (TYP.)

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CELLULAR GLASS INSULATION WITH ALUMINUM JACKET

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PRE-INSULATED BURIED PIPING

AutoCAD SHX Text CHILLER RELOCATION GENERAL NOTES 1. REMOVE EXISTING CHILLER AND RUNOUT PIPING. DISCONNECT AND REMOVE EXISTING CHILLER AND RUNOUT PIPING. DISCONNECT AND RE-CONNECT POWER AND CONTROLS AS REQUIRED. 2. NEW ABOVE GRADE PIPING TO BE SCHEDULE 40 STEEL WITH EITHER NEW ABOVE GRADE PIPING TO BE SCHEDULE 40 STEEL WITH EITHER WELDED OR GROOVED CONNECTIONS. PROVIDE STAINLESS STEEL BRAIDED FLEXIBLE CONNECTION AT EVAPORATOR. INSULATION TO BE 2" THICK CELLULAR GLASS WITH .016 THICK ALUMINUM JACKET. PROVIDE 5 WATT/LF HEAT TRACE ON PIPING PRIOR TO INSULATION. HEAT TRACE TO HAVE FACTORY TEMPERATURE CONTROLLER, 120-VOLT. 3. ALL PIPE SUPPORT TO BE HOT DIPPED GALVANIZED, HARDWARE TO BE ALL PIPE SUPPORT TO BE HOT DIPPED GALVANIZED, HARDWARE TO BE STAINLESS STEEL. 4. THERMOMETER TO BE GLASS TYPE, 1% ACCURACY, DIE CAST THERMOMETER TO BE GLASS TYPE, 1% ACCURACY, DIE CAST ALUMINUM, 0-120 RANGE. 5. PRESSURE GAUGE TO BE GLYCERIN FILLED, ANSI B 40.1 GRADE 2A, PRESSURE GAUGE TO BE GLYCERIN FILLED, ANSI B 40.1 GRADE 2A, 1/2% ACCURACY, 4-1/2" DIAMETER ,0-60 PSI, WITH BRASS GAUGE COCK AND SNUBBER. 6. BUTTERFLY VALVES TO BE 150-PSI LUG TYPE, MSS SP-67 TYPE 1, BUTTERFLY VALVES TO BE 150-PSI LUG TYPE, MSS SP-67 TYPE 1, CAST IRON OR DUCTILE IRON BODY, EPDM SEAT, STAINLESS STEEL DISC, STAINLESS STEEL STEM, 2" STEM EXTENSION FOR INSULATION, LEVER HANDLE OPERATOR. 7. PROVIDE NEW FLOW SWITCH, CONNECT TO CHILLER CONTROL PANEL.PROVIDE NEW FLOW SWITCH, CONNECT TO CHILLER CONTROL PANEL.

Squadron Operations Facility 10065 January 2018 Montgomery Regional Airport (ANG) Base

UNDERGROUND HDYDRONIC PIPING 232110 - 1

SECTION 232110 - UNDERGROUND HYDRONIC PIPING

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 1 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. Pre-insulated piping system for chilled water

2. factory fabricated elbows

3. Kits for field insulated fittings.

1.3 PERFORMANCE REQUIREMENTS

A. Provide components and installation capable of producing hydronic piping systems with the following minimum working-pressure ratings:

1. Chilled-Water Piping: 100 psig at 200 deg F.

B. In accordance with the provisions of Article 39-3-4, Code of Alabama (1975), only steel produced in the United States or its territories shall be furnished.

1.4 SUBMITTALS

A. Product Data: For the following:

1. Cased piping including expansion joints, anchors, bolster padding, insulation kits.

B. Shop Drawings: For underground hydronic piping.

1. Calculate requirements for expansion compensation for underground piping.

2. Show expansion offsets and loops with appropriate materials to allow piping movement in the required locations. Show anchors and guides that restrain piping movement with calculated loads, and show concrete thrust block dimensions.

3. Show pipe sizes, locations, and elevations. Show piping in trench, conduit, and cased pipe with details showing clearances between piping, and show insulation thickness.

C. Material Test Reports: For cased piping.

D. Field quality-control reports.

UNDERGROUND HDYDRONIC PIPING 232110 - 2

1.5 QUALITY ASSURANCE

A. ASME Compliance: Comply with ASME B31.9, "Building Services Piping," for materials, products, and installation.

PART 2 - PRODUCTS

2.1 CASED PIPING SYSTEM: Provide testable closure at all field joints; provide factory pre-engineered/pre-fabricated fittings.

A. Description: Factory-fabricated piping with carrier pipe, insulation, and casing.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Insul-Pipe

b. Perma-Pipe, Inc.

c. Thermacor Process, L.P.

B. Carrier pipe shall be steel ASTM A-53, Grade B., ERW (Type E) or seamless (Type S),

lengths. All carbon steel pipe shall have ends cut square and beveled for butt-welding. Straight sections of factory insulated pipe shall have 6" of exposed pipe at each end for field joint fabrication.

C. Insulation shall be polyurethane foam either spray applied or high pressure injected with one shot into the annular space between carrier pipe and jacket. Insulation shall be rigid, 90% minimum closed cell polyurethane with a minimum 2.0 lbs. per cubic foot density, compressive strength of 30 psi, and coefficient of thermal conductivity (K- Factor) of not higher than 0.15 @ 75°F per ASTM C-518. Insulation thickness shall be a nominal 2” for diameters up to 24.

D. Jacketing material shall be extruded, black, high density polyethylene (HDPE), having a minimum wall thickness not less than 125 mils for pipe sizes less than or equal to 12”, 150 mils for jacket sizes larger than 12” to 20”, and 175 mils for jacket sizes greater than 20”. No tape jacket allowed. The inner surface of the HDPE jacket shall be oxidized by means of corona treatment, flame treatment, or other approved methods. This will ensure a secure bond between the jacket and foam insulation preventing any ingression of water at the jacket/ foam interface.

E. Joints shall be field-insulated per the manufacturer’s instructions, using polyurethane foam poured in an HDPE sleeve and sealed with a heat shrink sleeve . Joint Kit to include: Half-shell, pourable or split insulation, casing sleeve, and shrink-wrap sleeve.

F. Expansion/contraction compensation will be accomplished utilizing factory pre-fabricated and pre-insulated expansion elbows, Z-bends, expansion loops, and anchors specifically designed for the intended application. External expansion compensation utilizing flexible expansion pads (bolster pad) (minimum one inch thickness), extending on either side, both inside and outside the radius of the fittings are used with all fittings having expansion in excess of 1/2".

UNDERGROUND HDYDRONIC PIPING 232110 - 3

2.2 Casing accessories include the following:

1. Expansion Blanket: Elastomeric foam, formed to fit over piping.

2. End Seals: Shrink wrap the casing material to seal watertight around casing and carrier pipe.

PART 3 - EXECUTION

3.1 EARTHWORK

A. See Division 31 Section "Earthwork" for excavating, trenching, and backfilling.

3.2 PIPING INSTALLATION

A. Drawing plans, schematics, and diagrams indicate general location and arrangement of piping systems. Indicate piping locations and arrangements if such were used to size pipe and calculate friction loss, expansion, pump sizing, and other design considerations. Install piping as indicated unless deviations to layout are approved on Coordination Drawings.

B. Remove standing water in the bottom of trench.

C. Do not backfill piping trench until field quality-control testing has been completed and results approved.

D. Install piping at uniform grade of 0.2 percent. Install drains, consisting of a tee fitting, NPS 3/4 ball valve, and short NPS 3/4 threaded nipple with cap, at low points and elsewhere as required for system drainage. Install manual air vents at high points.

E. In conduits, install drain valves at low points and manual air vents at high points.

F. Install components with pressure rating equal to or greater than system operating pressure.

G. Install piping free of sags and bends.

H. Install fittings for changes in direction and branch connections.

I. Secure anchors with concrete thrust blocks. Concrete is specified in Division 3 Section "Cast-in-Place Concrete."

3.3 JOINT CONSTRUCTION

A. See Division 2 Section "Piped Utilities - Basic Materials and Methods" for basic piping joint construction.

B. Join pipe and fittings according to the following requirements and Division 23 Sections specifying piping systems.

C. Ream ends of pipes and tubes and remove burrs. Bevel plain ends of steel pipe.

UNDERGROUND HDYDRONIC PIPING 232110 - 4

D. Remove scale, slag, dirt, and debris from inside and outside of pipe and fittings before assembly.

E. Threaded Joints: Thread pipe with tapered pipe threads according to ASME B1.20.1. Cut threads full and clean using sharp dies. Ream threaded pipe ends to remove burrs and restore full ID. Join pipe fittings and valves as follows:

1. Apply appropriate tape or thread compound to external pipe threads unless dry seal threading is specified.

2. Damaged Threads: Do not use pipe or pipe fittings with threads that are corroded or damaged. Do not use pipe sections that have cracked or open welds.

F. Welded Joints: Construct joints according to AWS D10.12M/D10.12, using qualified processes and welding operators according to "Quality Assurance" Article.

G. Flanged Joints: Select appropriate gasket material, size, type, and thickness for service application. Install gasket concentrically positioned. Use suitable lubricants on bolt threads.

H. Cased Piping Joints: Assemble sections and finish joints with pourable or split insulation and exterior jacket sleeve, and apply shrink-wrap seals.

3.4 IDENTIFICATION

A. Install continuous plastic underground warning tapes during back filling of trenches for underground hydronic piping. Locate tapes 6 to 8 inches below finished grade, directly over piping. See Division 2 Section "Earthwork" for warning-tape materials and devices and their installation.

3.5 FIELD QUALITY CONTROL

A. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect, test, and adjust components, assemblies, and equipment installations, including connections.

B. Perform tests and inspections.

1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components, assemblies, and equipment installations, including connections, and to assist in testing.

C. Tests and Inspections:

1. Prepare hydronic piping for testing according to ASME B31.9 and as follows:

a. Leave joints, including welds, uninsulated and exposed for examination during test.

b. Fill system with water. Where there is risk of freezing, air or a safe, compatible liquid may be used.

c. Use vents installed at high points to release trapped air while filling system.

2. Test hydronic piping as follows:

UNDERGROUND HDYDRONIC PIPING 232110 - 5

a. Subject hydronic piping to hydrostatic test pressure that is not less than 1.5 times the design pressure.

b. After hydrostatic test pressure has been applied for 10 minutes, examine joints for leakage. Remake leaking joints using new materials and repeat hydrostatic test until no leaks exist.

D. Prepare test and inspection reports.

END OF SECTION 232110