RFP FP-2021-15A Addendum No. 2.pdf

Facilities & Planning Department

Eastern Oregon University Facilities & Planning Department EOU DA Tank Replacement April 7, 2022 RFP #FP-2021-15A Addendum No. 2

ADDENDUM NO. 2

EASTERN OREGON UNIVERSITY

DA Tank Replacement RFP #FP-2021-15A

This 54-page addendum provides a response to pre-bid questions, revised and additional specifications, revised Mechanical Drawings and a revised Proposal Guaranty – Bid Bond form. Addendum No. 2 to the Request for Proposal (RFP) is hereby submitted for use in proposal preparation and submittal.

All changes, additions, and/or deletions are hereby made as part of the Eastern Oregon University DA Tank

Replacement, as fully and completely as if the same were entirely set forth in the RFP #FP-2021-02B.

Changes and additions are noted in underlined italics, deletions are noted in strikethrough.

Request for Proposal #FP-2021-15A

PROPOSAL GUARANTY – BID BOND

Eastern Oregon University DA Tank Replacement

By: David Moore, Capital Projects Manager Date: April 7, 2022

725 A Street Springfield, OR 97477 | 550 NW Franklin Blvd., Suite 448 Bend, OR 97701

SystemsWestEngineers.com (541) 342-7210

Addendum No. 1, X033.01 1

ADDENDUM NO. 2

X033.01

From: Systems West Engineers, Inc.

725 A Street

Springfield, OR 97477

To: All Plan Holders of Record

Project: EOU - Steam Central Plant Surge & Deaerator Tank Replacement

Date: April 8, 2022

This addendum forms a part of the Contract Documents and modifies the original Bidding Documents dated March 16, 2022 as noted below. Acknowledge receipt of this addendum in the space provided on the Bid Form. Failure to do so may subject the Bidder to disqualification.

Contractor Questions

Q1. Not clear if Deaerator manufacturer needs to provide controls, VFDs, and level transmitters.

These are shown out of packaged skid scope (per M611 DRAWINGS pg11).

A. Refer to revised specification section and schematic diagrams in this addendum for manufacturer provided controls.

Q2. Did engineer include section 23 50 11? I do not see it in the 217 page "project manual." It should be before page 187/217 but is not.

A. Refer to revised specification section provided in this addendum.

Q3. I see cold makeup going to the surge (per M611 DRAWINGS pg11. Can you confirm if its ok piping cold makeup directly to the deaerator in lieu of the surge tank? This will help keep costs down as we won’t have to have a stainless-steel surge tank, in the past we have had issues with cold water makeup in the surge tank causing corrosion and we would add liners or change material we used for a tank.

A. No, makeup water should be piped as indicated in drawings. Stainless-steel surge tank construction is required.

Q4. A discussion was had at the pre-bid walkthrough regarding temporary operating conditions.

I do not see any reference to this in Addenda #1. Will there be instructions regarding the temporary operations issued?

A. Refer to revised specification section provided in this addendum.

Q5. What is the maximum operating steam pressure of the boiler system? It was mentioned in the walkthrough that it was 30 psi at the highest.

A. Boiler system operates between 25-35 psi; however, all safety valves on the boiler are set at 75 psi, which dictates the operating pressure of the pumps according to https://www.systemswestengineers.com/

Addendum No. 2, X033.01 2

ASME Section 1. Operating pressure of the pumps must exceed the operating pressure of the safety relief valves in addition to any piping pressure losses.

Q6. If the maximum boiler operating pressure is 30 psi, does the required head of the boiler feed pumps need to be 250 feet?

A. Refer to Q5 response.

Q7. What is the communications protocol that will be used by the Deaerator (BacNet IP, Metasys, etc.)?

A. Refer to revised specification sections provided in this addendum. Contractor to coordinate controls requirements with campus JCI Metasys system.

Q8. Is it acceptable to use the Industrial Steam Spray Flow ii system instead of separate tanks as shown in the attached Brochure? The advantages are listed on page 2 of the Brochure.

A. No, product does not meet specification requirements, including tank construction and surge capacity.

Specifications

Section 01 23 00 - Alternates

1. Replace specification section with attached revised specification.

Section 01 50 00 - Temporary Facilities and Controls

2. Replace specification section with attached revised specification.

Section 23 05 19 - Meters and Gages for HVAC Piping

3. Replace specification section with attached revised specification.

Section 23 07 16 - HVAC Equipment Insulation

4. Replace specification section with attached revised specification.

Section 23 07 19 - HVAC Piping Insulation

5. Replace specification section with attached revised specification.

Section 23 09 29 - BAS Sequence of Operations for HVAC

6. Replace specification section with attached revised specification.

Section 23 22 16 - Boiler Plant Piping Specialties

7. Replace specification section with attached revised specification.

Section 23 50 11 - Boiler Plant Mechanical Equipment

8. Replace specification section with attached revised specification.

Drawings

Sheet M101 - DEMOLITION PLAN - LOWER LEVEL

1. Replace sheet with attached revised sheet.

Sheet M102 - DEMOLITION PLAN - UPPER LEVEL

2. Replace sheet with attached revised sheet.

Sheet M611 - DIAGRAMS

Addendum No. 2, X033.01 3

3. Replace sheet with attached revised sheet.

Sheet M612 - DIAGRAMS

4. Replace sheet with attached revised sheet.

END OF ADDENDUM NO. 2

Gregory N. Langdon, PE

President

MLO\jaw

Enclosures: Section 01 23 00 - Alternates

Section 01 50 00 - Temporary Facilities and Controls

Section 23 05 19 - Meters and Gages for HVAC Piping

Section 23 07 16 - HVAC Equipment Insulation

Section 23 07 19 - HVAC Piping Insulation

Section 23 09 29 - BAS Sequence of Operations for HVAC

Section 23 22 16 - Boiler Plant Piping Specialties

Section 23 50 11 - Boiler Plant Mechanical Equipment

Sheet M101

Sheet M102

Sheet M611

Sheet M612

X033.01 01 23 00 - 1 Alternates

SECTION 01 23 00

ALTERNATES

PART 1 - GENERAL

1.01 REQUIREMENTS INCLUDED

A. Identification and description of Alternate work.

1.02 PROCEDURES

A. Alternates will be exercised at the option of Owner.

B. Coordinate related work and modify surrounding work as required to complete the work, including changes under each Alternate, when acceptance is designated in Own-er/Contractor Agreement.

1.03 ADDITIVE ALTERNATE NO. 1: PROVIDE STEAM METER

A. Demolish flow sensor, differential pressure transmitters, and operators control cabinet associated with existing steam metering.

B. Provide steam meter, control cabinet, and associated piping connections as shown on drawings and as specified.

PART 2 - PRODUCTS

2.01 THIS PART NOT USED

PART 3 - EXECUTION

3.01 THIS PART NOT USED

END OF SECTION

X033.01 01 50 00 - 1 Temporary Facilities and Controls

SECTION 01 50 00

TEMPORARY FACILITIES AND CONTROLS

1.01 REQUIREMENTS INCLUDED

A. Temporary Fire Protection

B. Staging Areas and Materials Storage

C. Electricity, Lighting

D. Heat, Ventilation

E. Telephone Service

F. Water

G. Sanitary Facilities

H. Construction Aids

I. Temporary Roofing

J. Enclosures

K. Barriers

L. Cleaning during Construction

M. Parking

N. Field Offices and Sheds

O. Boiler Feedwater Tank and Pumps

P. Removal

1.02 TEMPORARY FIRE PROTECTION

A. Maintain existing fire protection, fire sprinkler and fire alarm systems in operable condition during construction.

B. Provide extensions and temporary systems to maintain specified or existing conditions for fire protection.

1.03 STAGING AREAS AND MATERIALS STORAGE

A. Areas for staging and material storage as designated by Owner.

B. Materials and equipment stored in accordance with Section 01 60 00.

C. Clean and repair any damage caused during staging, handling, and storage of materials.

Return areas and existing facilities to specified or original condition.

X033.01 01 50 00 - 2 Temporary Facilities and Controls

1.04 ELECTRICITY, LIGHTING

A. Connect to existing service, provide branch wiring and distribution boxes located to allow service and lighting by means of construction-type power cords. Owner will pay costs of energy used.

B. Provide lighting for construction operations.

C. Existing and permanent lighting may be used during construction. Maintain lighting and make routine repairs.

1.05 HEAT, VENTILATION

A. Coordinate use of existing facilities with Owner; extend and supplement with temporary units as required to maintain specified conditions for construction operations, and to protect materials and finishes from damage due to temperature or humidity. Owner will pay costs of energy used by existing facilities. Contractor to pay operating costs of temporary portable heaters using fuel sources not available at the site.

B. Prior to operation of permanent facilities for temporary purposes, verify that installation is approved for operation, and that filters are in place.

C. Provide ventilation of enclosed areas to cure materials, to disperse humidity, and to prevent accumulations of dust, fumes, vapors, or gases.

1.06 TELEPHONE SERVICE

A. Provide telephone service to field office.

B. Provide telephone and directory listing name and business phone number of at least the following:

1. Each contractor and subcontractor

2. Owner

3. Owner's consultants

4. Testing laboratories

5. Physicians

1.07 WATER

A. Connect to existing facilities; extend branch piping with outlets located so that water is available by use of hoses. Owner will pay for water used.

1.08 SANITARY FACILITIES

A. Designated existing facilities may be used during construction operations; maintain in sanitary condition.

1.09 CONSTRUCTION AIDS

A. Provide and operate drainage and pumping equipment; maintain excavations and site free of standing water.

B. Designated existing stairs may be used by construction personnel. Coordinate use with

Owner.

X033.01 01 50 00 - 3 Temporary Facilities and Controls

1.10 ENCLOSURES

A. Provide temporary weather-tight closures of openings in exterior surfaces to provide acceptable working conditions and protection for materials to prevent infiltration of rainwater, wind, and other elements, to allow for temporary heating, and to prevent entry of unauthorized persons.

1.11 BARRIERS

A. Provide as required to prevent public entry to construction areas, to provide for Owner's use of site, and to protect existing facilities and adjacent properties from damage from construction operations.

B. Provide barricades as required by governing authorities for public rights-of-way and for public access to existing building.

C. Provide barriers around trees and plants designated to remain. Protect against vehicular traffic, stored materials, dumping, chemically injurious materials, and puddling or continuous running water.

1.12 CLEANING DURING CONSTRUCTION

A. Control accumulation of waste materials and rubbish; periodically dispose of off-site.

Contractor shall provide trash receptacles and pay for servicing.

B. Clean interior areas prior to start of finish work, maintain areas free of dust and other contaminants during finishing operations.

1.13 PARKING

A. On site vehicle parking limited to those areas designated by Owner.

1.14 FIELD OFFICES AND SHEDS

A. Contractor and subcontractors provide portable field offices at site or within the building for their own use and as necessary for performance of the work.

B. Provide sheds as necessary for storage of tools, materials, and equipment.

C. Location of exterior field buildings or interior office spaces to be designated by Owner.

1.15 BOILER FEEDWATER TANK AND PUMPS

A. Provide temporary reconnection of the demolished boiler feedwater tank for seasonal heating as needed due to project schedule. Owner shall determine when heating season commences, expected between September 15th and October 31st.

B. Demolished feedwater tank and pumps shall be stored within the central plant at a location coordinated with the Owner. Demolished feedwater tank and pumps shall be kept on site until new equipment is fully installed and operational, and commissioning is complete.

C. Work includes extending and reconnecting the following existing systems at temporary location: condensate, boiler feedwater, cold water make-up, and electrical connections to pumps. System function shall include: receiving condensate surge volume, storing boiler feedwater, pumping boiler feedwater, and providing chemical treatment as needed for steam central plant operation. Steam and water softening connections are not required for temporary operations.

X033.01 01 50 00 - 4 Temporary Facilities and Controls

D. Work includes mobilization and demobilization of tank usage, as well as disconnection and demolition of the existing tank when no longer required.

1.16 REMOVAL

A. Remove temporary materials, equipment, services, and construction prior to Substantial

Completion inspection.

B. Clean and repair damage caused by installation or use of temporary facilities. Restore existing facilities used during construction to specified or to original condition.

2.01 THIS PART NOT USED

PART 3 - EXECUTION

3.01 THIS PART NOT USED

X033.01 23 05 19 - 1 Meters and Gages for HVAC Piping

SECTION 23 05 19

METERS AND GAGES FOR HVAC PIPING

PART 1 - GENERAL

1.01 SUMMARY

A. Section Includes:

1. Thermometers, mounting brackets, and thermowells

2. Pressure gages and gage attachments

3. Test plugs

1.02 ACTION SUBMITTALS

A. Provide submittals for products listed in the Product Table below in accordance with Section 23 05 00 – General HVAC Provisions. Submittal requirements indicated by column number designation as follows:

1. Materials List

2. Catalog Data

3. Product Data

4. Performance Data

5. Wiring Diagrams

6. Shop Drawings

7. Installation Instructions

8. Special Requirement listed herein.

PRODUCT TABLE 1 2 3 4 5 6 7 8

Thermometers, Thermowells, and

Accessories X

Pressure Gauges and Gauge

Attachments X

Test Plugs X

1.03 CLOSEOUT SUBMITTALS

A. Operation and Maintenance Data: For meters and gages to include in operation and maintenance manuals.

PART 2 - PRODUCTS

2.01 THERMOMETERS, THERMOWELLS, AND ACCESSORIES

A. Filled-System Thermometers

1. Direct-Mounted, Metal-Case, Vapor-Actuated Thermometers:

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

a. Ashcroft Inc.

b. Marsh Bellofram

c. Palmer Wahl Instrumentation Group

d. Trerice, H. O. Co.

3. Standard: ASME B40.200.

4. Case: Sealed type, stainless steel; 4-1/2-inch nominal diameter.

5. Element: Bourdon tube or other type of pressure element.

6. Movement: Mechanical, dampening type, with link to pressure element and connection to pointer.

7. Dial: Non-reflective aluminum with permanently etched scale markings graduated in degrees F.

8. Pointer: Dark-colored metal.

9. Window: Double strength glass or plastic.

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X033.01 23 05 19 - 2 Meters and Gages for HVAC Piping

10. Ring: Stainless steel.

11. Connector Type(s): Union joint, adjustable, 180 degrees in vertical plane, 360 degrees in horizontal plane with locking device. Alternately rigid, back or rigid bottom.

ASME B1.1 screw threads. Select connector for ease of reading.

12. Thermal System: Liquid-filled bulb in copper-plated steel, aluminum, or brass stem and of length to suit installation.

a. Design for Air-Duct Installation: With ventilated shroud.

b. Design for Thermowell Installation: Bare stem.

13. Scale: Black printing on white. 40oF to 300oF range

14. Accuracy: Plus or minus 1 percent of scale range.

B. Duct-Thermometer Mounting Brackets

1. Description: Flanged bracket with screw holes, for attachment to air duct and made to hold thermometer stem.

C. Thermowells

1. Standard: ASME B40.200.

2. Description: Pressure-tight, socket-type fitting made for insertion into piping tee fitting.

3. Material for Use with Copper Tubing and PVC Piping: CNR or CUNI.

4. Material for Use with Steel Piping: CRES.

5. Type: Stepped shank unless straight or tapered shank is indicated.

6. External Threads: NPS 1/2, NPS 3/4, or NPS 1, ASME B1.20.1 pipe threads.

7. Internal Threads: 1/2, 3/4, and 1 inch, with ASME B1.1 screw threads.

8. Bore: Diameter required to match thermometer bulb or stem.

9. Insertion Length: Length required to match thermometer bulb or stem.

10. Lagging Extension: Include on thermowells for insulated piping and tubing.

11. Bushings: For converting size of thermowell's internal screw thread to size of thermometer connection.

12. Heat-Transfer Medium: Mixture of graphite and glycerin.

2.02 PRESSURE GAGES AND GAGE ATTACHMENTS

A. Direct-Mounted, Metal-Case, Dial-Type Pressure Gages:

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

a. Ashcroft Inc.

b. Marsh Bellofram

c. Palmer Wahl Instrumentation Group

d. Trerice, H. O. Co.

e. Weiss Instruments, Inc.

2. Standard: ASME B40.100.

3. Case: Liquid-filled type; cast aluminum or drawn steel; 4-1/2-inch nominal diameter.

4. Pressure-Element Assembly: Bourdon tube unless otherwise indicated.

5. Pressure Connection: Brass, with NPS 1/4, ASME B1.20.1 pipe threads and bottom-outlet type unless back-outlet type is required.

6. Movement: Mechanical, with link to pressure element and connection to pointer.

7. Dial: Non-reflective aluminum with permanently etched scale markings graduated in psi.

8. Pointer: Dark-colored metal.

9. Window: Double strength glass or plastic.

10. Ring: Metal, Friction fit.

11. Accuracy: Grade A, plus or minus 1 percent of middle half of scale range.

12. Scale: Black printing on white. 270-degree arc, 0 to 60 range, 1 psi increments. 0 to

100 psi range, 1 psi increments, or as required for system pressure encountered.

Range selected so that operating pressure approximately half of full range or maximum scale value exceeds maximum pressure, whichever scale range is greater.

B. Gage Attachments http://www.specagent.com/Lookup?ulid=3048 http://www.specagent.com/Lookup?uid=123456942193 http://www.specagent.com/Lookup?uid=123456942189 http://www.specagent.com/Lookup?uid=123456942192 http://www.specagent.com/Lookup?uid=123456942198 http://www.specagent.com/Lookup?uid=123456942199

X033.01 23 05 19 - 3 Meters and Gages for HVAC Piping

1. Snubbers: ASME B40.100, brass; with NPS 1/4, ASME B1.20.1 pipe threads and piston or porous-metal-type surge-dampening device. Include extension for use on insulated piping.

2. Siphons: Loop-shaped section of brass pipe with NPS 1/4 pipe threads.

3. Valves: Brass ball, with NPS 1/4, ASME B1.20.1 pipe threads.

2.03 TEST PLUGS

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

1. Sisco Manufacturing Company, Inc.

2. Trerice, H. O. Co.

3. Watts, a Watts Water Technologies company

4. Weiss Instruments, Inc.

B. Description: Test-station fitting made for insertion into piping tee fitting.

C. Body: Brass or stainless steel with core inserts and gasketed and threaded cap. Include extended stem on units to be installed in insulated piping.

D. Thread Size: NPS 1/4, ASME B1.20.1 pipe thread.

E. Minimum Pressure and Temperature Rating: 500 psig at 200°F.

F. Core Inserts: Chlorosulfonated polyethylene synthetic acceptable for air, gas, oil, and water. EPDM self-sealing rubber acceptable for air and water only.

PART 3 - EXECUTION

3.01 INSTALLATION

A. Install all equipment in accordance with manufacturer’s recommendations.

B. Thermometers

1. Install direct-mounted thermometers in thermowells and adjust vertical and tilted positions.

2. Install duct-thermometer mounting brackets in walls of ducts. Attach to duct with screws.

C. Thermowells

1. Install thermowells with socket extending to center of pipe and in vertical position in piping tees.

2. Install thermowells of sizes required to match thermometer connectors. Include bushings if required to match sizes.

3. Install thermowells with extension on insulated piping.

4. Fill thermowells with heat-transfer medium.

D. Pressure Gauges

1. Install direct-mounted pressure gages in piping tees with pressure gage located on pipe at the most readable position.

2. Install valve and snubber in piping for each pressure gage for fluids (except steam).

3. Sight Install valve and syphon fitting in piping for each pressure gage for steam.

E. Test Plugs

1. Install test plugs in piping tees.

2. Location:

a. Provide test plugs where shown on Drawings.

b. Provide test plug immediately adjacent to each control system component that senses temperature or pressure. For differential pressure transmitters, provide test plug adjacent to both high pressure and low-pressure sensing ports.

3. Arrangement:

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X033.01 23 05 19 - 4 Meters and Gages for HVAC Piping

a. Install so temperature probe and pressure gauge probe can easily be inserted and removed with no obstruction.

3.02 CONNECTIONS

A. Install meters and gages adjacent to machines and equipment to allow service and maintenance of meters, gages, machines, and equipment.

3.03 ADJUSTING

A. After installation, calibrate meters according to manufacturer's written instructions.

B. Adjust faces of meters and gages to proper angle for best visibility.

X033.01 23 07 16 - 1 HVAC Equipment Insulation

SECTION 23 07 16

HVAC EQUIPMENT INSULATION

PART 1 - GENERAL

1.01 SUMMARY

A. Section includes insulation of HVAC equipment

1.02 ACTION SUBMITTALS

A. Provide submittals in accordance with Section 23 05 00 – General HVAC Provisions as follows:

1. Provide catalog data for all products. Indicate thermal conductivity, water vapor permeance, and jackets (both factory and field applied) if any.

1.03 QUALITY ASSURANCE

A. Insulation materials and accessories shall be installed in a professional manner by skilled and experienced workers who specialize in commercial insulation work.

B. Surface-Burning Characteristics: For insulation and related materials, as determined by testing identical products according to ASTM E 84, by a testing agency acceptable to authorities having jurisdiction. Factory label insulation and jacket materials and adhesive, mastic, tapes, and cement material containers, with appropriate markings of applicable testing agency.

1. Insulation Installed Indoors: Flame-spread index of 25 or less, and smoke-developed index of 50 or less.

2. Insulation Installed Outdoors: Flame-spread index of 75 or less, and smoke-developed index of 150 or less.

1.04 DELIVERY, STORAGE, AND HANDLING

A. Packaging: Insulation material containers shall be marked by manufacturer with appropriate ASTM standard designation, type and grade, and maximum use temperature.

1.05 COORDINATION

A. Coordinate sizes and locations of supports, hangers, and insulation shields specified in Section 23 05 29 – Hangers and Supports for HVAC Piping and Equipment.

B. Coordinate clearance requirements with equipment Installer for equipment insulation application.

C. Coordinate installation and testing of heat tracing.

1.06 SCHEDULING

A. Schedule insulation application after pressure testing systems and, where required, after installing and testing heat tracing. Insulation application may begin on segments that have satisfactory test results.

B. Complete installation and concealment of plastic materials as rapidly as possible in each area of construction.

X033.01 23 07 16 - 2 HVAC Equipment Insulation

2.01 INSULATION MATERIALS

A. Comply with requirements in "Breeching Insulation Schedule" and "Equipment Insulation Schedule" articles for where insulating materials shall be applied.

B. Products shall not contain asbestos, lead, mercury, or mercury compounds.

C. Products that come in contact with stainless steel shall have a leachable chloride content of less than 50 ppm when tested according to ASTM C 871.

D. Insulation jacket material shall be paintable where painting of the insulation jacket is specified.

E. Mineral-Fiber Board Insulation: Mineral or glass fibers bonded with a thermosetting resin.

Comply with ASTM C 612, Type IA or Type IB. Provide insulation with factory-applied ASJ. Factory-applied jacket requirements are specified in "Factory-Applied Jackets" Article.

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

a. CertainTeed Corporation.

b. Johns Manville; a Berkshire Hathaway company.

c. Knauf Insulation.

F. Mineral-Fiber, Pipe and Tank Insulation: Mineral or glass fibers bonded with a thermosetting resin. Semirigid board material with factory applied ASJ complying with ASTM C 1393, Type II or Type IIIA Category 2, or with properties similar to ASTM C 612, Type IB. Nominal density is 2.5 lb./cu. ft. or more. Thermal conductivity (k-value) at 100°F is 0.29 Btu x in./h x sq. ft. x deg F or less. Factory-applied jacket requirements are specified in "Factory-Applied Jackets" Article.

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

a. CertainTeed Corporation.

b. Johns Manville; a Berkshire Hathaway company.

c. Knauf Insulation.

G. Pre-manufactured Removable Insulation Systems

1. General: Removable and Re-useable insulation covers, custom engineered and manufactured for the specific application. Similar to Fit Tight Covers.

2. Construction

a. Jacket and Liner: Silicon Impregnated Fiberglass Fabric

b. Insulation: 1-inch Type E Glass Mat

c. Fastening: 1-inch straps and stainless-steel D-rings.

d. Thread: Kevlar/stainless steel thread.

2.02 ADHESIVES

A. Materials compatible with insulation materials, jackets, and substrates and for bonding insulation to itself and to surfaces to be insulated unless otherwise indicated.

B. Flexible Elastomeric and Polyolefin Adhesive: Comply with MIL-A-24179A, Type II, Class I.

C. Mineral-Fiber Adhesive: Comply with MIL-A-3316C, Class 2, Grade A.

D. ASJ Adhesive and FSK Jacket Adhesive: Comply with MIL-A-3316C, Class 2, Grade A for bonding insulation jacket lap seams and joints.

E. PVC Jacket Adhesive: Compatible with PVC jacket.

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X033.01 23 07 16 - 3 HVAC Equipment Insulation

2.03 MASTICS

A. Materials shall be compatible with insulation materials, jackets, and substrates; comply with MIL-PRF-19565C, Type II.

B. Vapor-Barrier Mastic: Solvent based; suitable for indoor use on below ambient services.

1. Water-Vapor Permeance: ASTM F 1249, 0.05 perm at 35-mil dry film thickness.

2. Service Temperature Range: 0 to 180°F.

3. Solids Content: ASTM D 1644, 44 percent by volume and 62 percent by weight.

4. Color: White.

C. Vapor-Barrier Mastic: Solvent based; suitable for outdoor use on below ambient services.

1. Water-Vapor Permeance: ASTM F 1249, 0.05 perm at 30-mil dry film thickness.

2. Service Temperature Range: Minus 50 to plus 220°F.

3. Solids Content: ASTM D 1644, 33 percent by volume and 46 percent by weight.

4. Color: White.

2.04 FACTORY-APPLIED JACKETS

A. Insulation system schedules indicate factory-applied jackets on various applications.

When factory-applied jackets are indicated, comply with the following:

1. ASJ: White, Kraft-paper, fiberglass-reinforced scrim with aluminum-foil backing;

complying with ASTM C 1136, Type I.

2.05 FIELD-APPLIED JACKETS

A. Field-applied jackets shall comply with ASTM C 921, Type I, unless otherwise indicated.

B. PVC Jacket: High-impact-resistant, UV-resistant PVC complying with ASTM D 1784, Class 16354-C; thickness as scheduled; roll stock ready for shop or field cutting and forming. Thickness is indicated in field-applied jacket schedules.

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

a. Johns Manville; a Berkshire Hathaway company.

b. P.I.C. Plastics, Inc.

c. Proto Corporation.

2. Adhesive: As recommended by jacket material manufacturer.

3. Color: White.

4. Factory-fabricated tank heads and tank side panels.

C. Metal Jacket:

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

a. ITW Insulation Systems; Illinois Tool Works, Inc.

b. Childers Brand: H. B. Fuller Construction Products

2. Aluminum Jacket: Comply with ASTM B 209, Alloy 3003, 3005, 3105, or 5005, Temper H-14.

a. Sheet and roll stock ready for shop or field sizing.

b. Finish and thickness are indicated in field-applied jacket schedules.

c. Moisture Barrier for Indoor Applications: 3-mil- thick, heat-bonded polyethylene and Kraft paper.

d. Moisture Barrier for Outdoor Applications: 3-mil- thick, heat-bonded polyethylene and Kraft paper.

2.06 TAPES

A. ASJ Tape: White vapor-retarder tape matching factory-applied jacket with acrylic adhesive, complying with ASTM C 1136.

1. Width: 3 inches.

2. Thickness: 11.5 mils.

3. Adhesion: 90 ounces force/inch in width.

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X033.01 23 07 16 - 4 HVAC Equipment Insulation

4. Elongation: 2 percent.

5. Tensile Strength: 40 lbf/inch in width.

6. ASJ Tape Disks and Squares: Precut disks or squares of ASJ tape.

B. PVC Tape: White vapor-retarder tape matching field-applied PVC jacket with acrylic adhesive; suitable for indoor and outdoor applications.

1. Width: 2 inches.

2. Thickness: 6 mils.

3. Adhesion: 64 ounces force/inch in width.

4. Elongation: 500 percent.

5. Tensile Strength: 18 lbf/inch in width.

2.07 CORNER ANGLES

A. PVC Corner Angles: 30 mils thick, minimum 1 by 1 inch, PVC according to ASTM D 1784, Class 16354-C. White or color-coded to match adjacent surface.

B. Aluminum Corner Angles: 0.040 inch thick, minimum 1 by 1 inch, aluminum according to ASTM B 209, Alloy 3003, 3005, 3105, or 5005; Temper H-14.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine substrates and conditions for compliance with requirements for installation tolerances and other conditions affecting performance of insulation application.

1. Verify that systems and equipment to be insulated have been tested and are free of defects.

2. Verify that surfaces to be insulated are clean and dry.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 PREPARATION

A. Surface Preparation: Clean and dry surfaces to receive insulation. Remove materials that will adversely affect insulation application.

B. Coordinate insulation installation with the trade installing heat tracing. Comply with requirements for heat tracing that apply to insulation.

C. Mix insulating cements with clean potable water; if insulating cements are to be in contact with stainless-steel surfaces, use demineralized water.

3.03 GENERAL INSTALLATION REQUIREMENTS

A. Install insulation materials, accessories, and finishes with smooth, straight, and even surfaces; free of voids throughout the length of equipment.

B. Install insulation materials, forms, vapor barriers or retarders, jackets, and thicknesses required for each item of equipment as specified in insulation system schedules.

C. Install accessories compatible with insulation materials and suitable for the service. Install accessories that do not corrode, soften, or otherwise attack insulation or jacket in either wet or dry state.

D. Install insulation with longitudinal seams at top and bottom of horizontal runs.

E. Install multiple layers of insulation with longitudinal and end seams staggered.

F. Keep insulation materials dry during application and finishing.

X033.01 23 07 16 - 5 HVAC Equipment Insulation

G. Install insulation with tight longitudinal seams and end joints. Bond seams and joints with adhesive recommended by insulation material manufacturer.

H. Install insulation with least number of joints practical.

I. Where vapor barrier is indicated, seal joints, seams, and penetrations in insulation at hangers, supports, anchors, and other projections with vapor-barrier mastic.

1. Install insulation continuously through hangers and around anchor attachments.

2. For insulation application where vapor barriers are indicated, extend insulation on anchor legs from point of attachment to supported item to point of attachment to structure. Taper and seal ends at attachment to structure with vapor-barrier mastic.

3. Install insert materials and install insulation to tightly join the insert. Seal insulation to insulation inserts with adhesive or sealing compound recommended by insulation material manufacturer.

4. Cover inserts with jacket material matching adjacent insulation. Install shields over jacket, arranged to protect jacket from tear or puncture by hanger, support, and shield.

J. Apply adhesives, mastics, and sealants at manufacturer's recommended coverage rate and wet and dry film thicknesses.

K. Install insulation with factory-applied jackets as follows:

1. Draw jacket tight and smooth.

2. Cover circumferential joints with 3-inch- wide strips, of same material as insulation jacket. Secure strips with adhesive and outward clinching staples along both edges of strip, spaced 4 inches o.c.

3. Overlap jacket longitudinal seams at least 1-1/2 inches. Clean and dry surface to receive self-sealing lap. Staple laps with outward clinching staples along edge at 2 inches o.c.

a. For below ambient services, apply vapor-barrier mastic over staples.

4. Cover joints and seams with tape, according to insulation material manufacturer's written instructions, to maintain vapor seal.

5. Where vapor barriers are indicated, apply vapor-barrier mastic on seams and joints.

L. Cut insulation in a manner to avoid compressing insulation more than 75 percent of its nominal thickness.

M. Finish installation with systems at operating conditions. Repair joint separations and cracking due to thermal movement.

N. Repair damaged insulation facings by applying same facing material over damaged areas. Extend patches at least 4 inches beyond damaged areas. Adhere, staple, and seal patches similar to butt joints.

O. For above ambient services, do not install insulation to the following:

1. Vibration-control devices.

2. Testing agency labels and stamps.

3. Nameplates and data plates.

4. Manholes.

5. Handholes.

6. Cleanouts.

3.04 INSTALLATION OF EQUIPMENT, TANK, AND VESSEL INSULATION

A. Mineral-Fiber, Pipe and Tank Insulation Installation for Tanks and Vessels: Secure insulation with adhesive and anchor pins and speed washers.

1. Apply adhesives according to manufacturer's recommended coverage rates per unit area.

2. Groove and score insulation materials to fit as closely as possible to equipment, including contours. Bevel insulation edges for cylindrical surfaces for tight joints.

Stagger end joints.

X033.01 23 07 16 - 6 HVAC Equipment Insulation

3. Protect exposed corners with secured corner angles.

4. Install adhesively attached or self-sticking insulation hangers and speed washers on sides of tanks and vessels as follows:

a. Do not weld anchor pins to ASME-labeled pressure vessels.

b. Select insulation hangers and adhesive that are compatible with service temperature and with substrate.

c. On tanks and vessels, maximum anchor-pin spacing is 3 inches from insulation end joints, and 16 inches o.c. in both directions.

d. Do not over-compress insulation during installation.

e. Cut and miter insulation segments to fit curved sides and domed heads of tanks and vessels.

f. Impale insulation over anchor pins and attach speed washers.

g. Cut excess portion of pins extending beyond speed washers or bend parallel with insulation surface. Cover exposed pins and washers with tape matching insulation facing.

5. Secure each layer of insulation with stainless-steel or aluminum bands. Select band material compatible with insulation materials.

6. Where insulation hangers on equipment and vessels are not permitted or practical and where insulation support rings are not provided, install a girdle network for securing insulation. Stretch pre-stressed aircraft cable around the diameter of vessel and make taut with clamps, turnbuckles, or breather springs. Place one circumferential girdle around equipment approximately 6 inches from each end.

Install wire or cable between two circumferential girdles 12 inches o.c. Install a wire ring around each end and around outer periphery of center openings and stretch prestressed aircraft cable radially from the wire ring to nearest circumferential girdle.

Install additional circumferential girdles along the body of equipment or tank at a minimum spacing of 48 inches o.c. Use this network for securing insulation with tie wire or bands.

7. Stagger joints between insulation layers at least 3 inches.

8. Install insulation in removable segments on equipment access doors, manholes, handholes, and other elements that require frequent removal for service and inspection.

9. Bevel and seal insulation ends around manholes, handholes, ASME stamps, and nameplates.

10. For equipment with surface temperatures below ambient, apply mastic to open ends, joints, seams, breaks, and punctures in insulation.

B. Insulation on Pumps:

1. Fluid operating temperature 100oF and above:

a. Provide pre-manufactured Removable Insulation Systems

3.05 FIELD-APPLIED JACKET INSTALLATION

A. Where PVC jackets are indicated, install with 1-inch overlap at longitudinal seams and end joints; for horizontal applications, install with longitudinal seams along top and bottom of tanks and vessels. Seal with manufacturer's recommended adhesive.

1. Apply two continuous beads of adhesive to seams and joints, one bead under lap and the finish bead along seam and joint edge.

B. Where metal jackets are indicated, install with 2-inch overlap at longitudinal seams and end joints. Overlap longitudinal seams arranged to shed water. Seal end joints with weatherproof sealant recommended by insulation manufacturer. Secure jacket with stainless-steel bands 12 inches o.c. and at end joints.

3.06 FINISHES

A. Equipment Insulation with ASJ, Glass-Cloth, or Other Paintable Jacket Material: Paint jacket with paint system identified below.

1. Flat Acrylic Finish: Two finish coats over a primer that is compatible with jacket material and finish coat paint. Add fungicidal agent to render fabric mildew proof.

a. Finish Coat Material: Interior, flat, latex-emulsion size.

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B. Color: Final color as selected by Architect. Vary first and second coats to allow visual inspection of the completed Work.

C. Do not field paint aluminum or stainless-steel jackets.

3.07 FIELD QUALITY CONTROL

A. Testing: The Owner reserves the right to perform tests and inspections of selected insulation sites at Owner’s cost for testing and repair.

B. Tests will include removing field-applied jacket and insulation in layers in reverse order of their installation for each piping system scheduled. If testing reveals defective work, all similar insulation sites will be considered defective, and Contractor will be responsible for cost of inspection and repair for all such sites.

3.08 EQUIPMENT INSULATION SCHEDULE

A. Insulation materials and thicknesses are identified below. If more than one material is listed for a type of equipment, selection from materials listed is Contractor's option.

B. Insulate indoor and outdoor equipment that is not factory insulated as scheduled.

C. Steam condensate pump and boiler feedwater pump insulation shall be the following:

1. Pre-manufactured Removable Insulation Systems

D. Steam condensate tank and receiver insulation shall be one of the following:

1. Mineral-Fiber Board: 2 inches thick.

2. Mineral-Fiber Pipe and Tank: 2 inches thick

3.09 INDOOR, FIELD-APPLIED JACKET SCHEDULE

A. Install jacket over insulation material. For insulation with factory-applied jacket, install the field-applied jacket over the factory-applied jacket.

B. If more than one material is listed, selection from materials listed is Contractor's option.

C. Equipment, Concealed:

1. None.

D. Equipment, Exposed, up to 48 Inches in Diameter or with Flat Surfaces up to 72 Inches:

1. None.

2. PVC: 20 mils thick.

3. Aluminum, Smooth: 0.020 inch thick.

E. Equipment, Exposed, Larger Than 48 Inches in Diameter or with Flat Surfaces Larger Than 72 Inches:

1. None.

2. Aluminum, Smooth : 0.032 inch thick.

3. Stainless Steel, Type 304, Smooth: 0.020 inch thick.

X033.01 23 07 19 - 1 HVAC Piping Insulation

SECTION 23 07 19

HVAC PIPING INSULATION

1.01 SUMMARY

A. Section includes insulating of above grade HVAC piping.

1.02 ACTION SUBMITTALS

A. Provide submittals for products listed in the Product Table below in accordance with Section 23 05 00 – General HVAC Provisions.

1. Catalog Data.

2. For each type of product listed, provide thermal conductivity and water-vapor permeance.

1.03 INFORMATIONAL SUBMITTALS

A. Field quality-control reports.

1.04 QUALITY ASSURANCE

A. Insulation materials and accessories shall be installed in a professional manner by skilled and experienced workers who specialize in commercial insulation work.

B. Surface-Burning Characteristics: Products shall have flame spread and smoke developed ratings based on test procedures in accordance with NFPA-255 and UL 723. Rating shall be indicated on the product or on the shipping containers.

1. Insulation Installed Indoors: Flame-spread index of 25 or less, and smoke-developed index of 50 or less.

2. Insulation Installed Outdoors: Flame-spread index of 75 or less, and smoke-developed index of 150 or less.

1.05 COORDINATION

A. Coordinate sizes and locations of supports, hangers, and insulation shields specified in Section 23 05 29 – Hangers and Supports for HVAC Piping and Equipment.

B. Coordinate clearance requirements with piping Installer for piping insulation application.

Before preparing piping Shop Drawings, establish and maintain clearance requirements for installation of insulation and field-applied jackets and finishes and for space required for maintenance.

1.06 SCHEDULING

A. Schedule insulation application after pressure testing systems. Insulation application may begin on segments that have satisfactory test results.

B. Complete installation and concealment of plastic materials as rapidly as possible in each area of construction.

PART 2 - PRODUCTS

2.01 INSULATION MATERIALS

A. Products shall not contain asbestos, lead, mercury, or mercury compounds.

X033.01 23 07 19 - 2 HVAC Piping Insulation

B. Products that come in contact with stainless steel shall have a leachable chloride content of less than 50 ppm when tested according to ASTM C 871.

C. Insulation materials for use on austenitic stainless steel shall be qualified as acceptable according to ASTM C 795.

D. Insulation jacket material shall be paintable where painting of the insulation jacket is specified.

E. Calcium Silicate:

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

a. Industrial Insulation Group

b. Johns Manville, Berkshire Hathaway Company

c. Owens Corning

2. Preformed Pipe Sections: Flat-, curved-, and grooved-block sections of noncombustible, inorganic, hydrous calcium silicate with a non-asbestos fibrous reinforcement. Comply with ASTM C 533, Type I.

3. Prefabricated Fitting Covers: Comply with ASTM C 450 and ASTM C 585 for dimensions used in preforming insulation to cover valves, elbows, tees, and flanges.

F. Mineral-Fiber, Preformed Pipe Insulation:

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

a. Johns Manville, a Berkshire Hathaway company

b. Knauf Insulation

c. Manson Insulation Inc.

d. Owens-Corning.

2. Type I, 850°F Materials: Mineral or glass fibers bonded with a thermosetting resin.

Comply with ASTM C 547, Type I, Grade A, with factory-applied ASJ-SSL. Factory-applied jacket requirements are specified in "Factory-Applied Jackets" Article.

G. Pre-manufactured Removable Insulation Systems

1. General: Removable and Re-useable insulation covers, custom engineered and manufactured for the specific application. Similar to Fit Tight Covers.

2. Construction

a. Jacket and Liner: Silicon Impregnated Fiberglass Fabric

b. Insulation: 1-inch Type E Glass Mat

c. Fastening: 1-inch straps and stainless-steel D-rings.

d. Thread: Kevlar/stainless steel thread.

2.02 ADHESIVES

A. Materials compatible with insulation materials, jackets, and substrates and for bonding insulation to itself and to surfaces to be insulated unless otherwise indicated.

B. Calcium Silicate Adhesive: Fibrous, sodium-silicate-based adhesive with a service temperature range of 50 to 800°F.

C. Mineral-Fiber Adhesive: Comply with MIL-A-3316C, Class 2, Grade A.

D. ASJ Adhesive: Comply with MIL-A-3316C, Class 2, Grade A for bonding insulation jacket lap seams and joints.

E. PVC Jacket Adhesive: Compatible with PVC jacket.

2.03 MASTICS

A. Materials shall be compatible with insulation materials, jackets, and substrates; comply with MIL-PRF-19565C, Type II.

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B. Vapor-Barrier Mastic: Water based; suitable for indoor use on below-ambient services.

1. Water-Vapor Permeance: ASTM E 96/E 96M, Procedure B, 0.013 perm at 43-mil dry film thickness.

2. Service Temperature Range: Minus 20 to plus 180°F.

3. Solids Content: ASTM D 1644, 58 percent by volume and 70 percent by weight.

4. Color: White.

C. Vapor-Barrier Mastic: Solvent based; suitable for outdoor use on below-ambient services.

1. Water-Vapor Permeance: ASTM F 1249, 0.05 perm at 30-mil dry film thickness.

2. Service Temperature Range: Minus 50 to plus 220°F.

3. Solids Content: ASTM D 1644, 33 percent by volume and 46 percent by weight.

4. Color: White.

2.04 FACTORY-APPLIED JACKETS

A. Insulation system schedules indicate factory-applied jackets on various applications.

When factory-applied jackets are indicated, comply with the following:

1. ASJ-SSL: ASJ with self-sealing, pressure-sensitive, acrylic-based adhesive covered by a removable protective strip; complying with ASTM C 1136, Type I.

2.05 FIELD-APPLIED JACKETS

A. Field-applied jackets shall comply with ASTM C 921, Type I, unless otherwise indicated.

B. PVC Jacket: High-impact-resistant, UV-resistant PVC complying with ASTM D 1784, Class 16354-C; thickness as scheduled; roll stock ready for shop or field cutting and forming. Thickness is indicated in field-applied jacket schedules.

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

a. Johns Manville, a Berkshire Hathaway company

b. P.I.C. Plastics, Inc.

c. Proto Corporation

2. Adhesive: As recommended by jacket material manufacturer.

3. Color: White.

4. Factory-fabricated fitting covers to match jacket if available; otherwise, field fabricate.

a. Shapes: 45- and 90-degree, short- and long-radius elbows, tees, valves, flanges, unions, reducers, end caps, soil-pipe hubs, traps, mechanical joints, and P-trap and supply covers for lavatories.

C. Metal Jacket:

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

a. Childers Brand; H. B. Fuller Construction Products.

b. ITW Insulation Systems; Illinois Tool Works, Inc.

2. Aluminum Jacket: Comply with ASTM B 209, Alloy 3003, 3005, 3105, or 5005, Temper H-14.

a. Sheet and roll stock ready for shop or field sizing or factory cut and rolled to size.

b. Finish and thickness are indicated in field-applied jacket schedules.

c. Moisture Barrier for Indoor Applications: 3-mil- thick, heat-bonded polyethylene and Kraft paper.

d. Moisture Barrier for Outdoor Applications: 2.5-mil- thick polysurlyn.

e. Factory-Fabricated Fitting Covers:

1) Same material, finish, and thickness as jacket.

2) Preformed 2-piece or gore, 45- and 90-degree, short- and long-radius elbows.

3) Tee covers.

4) Flange and union covers.

5) End caps.

6) Beveled collars.

7) Valve covers.

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8) Field fabricate fitting covers only if factory-fabricated fitting covers are not available.

2.06 TAPES

A. ASJ Tape: White vapor-retarder tape matching factory-applied jacket with acrylic adhesive, complying with ASTM C 1136.

1. Width: 3 inches.

2. Thickness: 11.5 mils.

3. Adhesion: 90 ounces force/inch in width.

4. Elongation: 2 percent.

5. Tensile Strength: 40 lbf/inch in width.

6. ASJ Tape Disks and Squares: Precut disks or squares of ASJ tape.

B. PVC Tape: White vapor-retarder tape matching field-applied PVC jacket with acrylic adhesive; suitable for indoor and outdoor applications.

1. Width: 2 inches.

2. Thickness: 6 mils.

3. Adhesion: 64 ounces force/inch in width.

4. Elongation: 500 percent.

5. Tensile Strength: 18 lbf/inch in width.

C. Aluminum-Foil Tape: Vapor-retarder tape with acrylic adhesive.

1. Width: 2 inches.

2. Thickness: 3.7 mils.

3. Adhesion: 100 ounces force/inch in width.

4. Elongation: 5 percent.

5. Tensile Strength: 34 lbf/inch in width.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine substrates and conditions for compliance with requirements for installation tolerances and other conditions affecting performance of insulation application.

1. Verify that systems to be insulated have been tested and are free of defects.

2. Verify that surfaces to be insulated are clean and dry.

3. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 PREPARATION

A. Surface Preparation: Clean and dry surfaces to receive insulation. Remove materials that will adversely affect insulation application.

B. Mix insulating cements with clean potable water; if insulating cements are to be in contact with stainless-steel…