Attachment 1b - Technical Specifications_Volume 2.pdf

Repair/Replace HVAC Systems, B3 C & D Bays

TECHNICAL SPECIFICATIONS

Volume II

For

AIR FORCE RESEARCH LABORATORY

ROME RESEARCH SITE

ROME, NEW YORK 13441

PROJECT NUMBER: ULDF 220304AE

Prepared By

TOWNE ENGINEERING, PC

CONSULTING ENGINEERS

18 South Street Utica, New York 315.733.9000

March 21, 2025

PROJECT MANUAL

TABLE OF CONTENTS

PROJECT MANUAL TOC -1

VOLUME I

Specifications:

Division 1 ------- General Requirements Division 2 ------- Existing Conditions Division 3-14 --- General Construction

VOLUME II

Specifications:

Division 21 ----- Fire Protection Division 22 ----- Plumbing Division 23 ----- Mechanical Division 26 ----- Electrical

Appendix A ---- 2024 Hazardous Materials Survey

DIVISION 21

SECTION 215901 – 215999

FIRE PROTECTION

SECTION TITLE

FIRE PROTECTION TOC - 1

21 59 01 General Provisions

21 59 05 General Provisions, Piping Systems

21 59 06 Piping Systems, Above Grade

21 59 09 Piping Systems Hangers and Supports

21 59 30 Sprinklers

21 59 91 Identification

Repair/Replace HVAC Systems, B3 GENERAL PROVISIONS ULDF 220304AE - C & D Bays SECTION 21 59 01 - 1

SECTION 21 59 01

GENERAL PROVISIONS

PART 1 – GENERAL

1.01 SCOPE OF WORK

A. Furnish and install equipment and materials required to provide a complete fire protection system.

1.02 FABRICATION DRAWINGS, MATERIAL LISTS AND EQUIPMENT

SUBMITTALS

A. Fabrication drawings, unless otherwise specified, shall conform with the following:

1. Prepare 1/4 inch scale (unless otherwise directed) fabrication drawings (using the contract drawings as a basis, showing all elements of the complete fire protection system, including the associated hydraulic calculations, in accordance with the herein mentioned standards and/or Codes).

2. Submit copies of the above drawings and secure approval from the authority having jurisdiction (Industrial Risk Insurers) and thereafter from the Contracting Officer or his/her Technical Representative.

3. Furnish copies of approved drawings to affected trades to insure a coordinated installation.

B. Unless otherwise noted or herein specified, the following are required:

1. Material lists:

a. Piping systems.

b. Pipe hangers and supports.

2. Equipment submittals:

a. Sprinklers

b. Identification

3. Record drawings.

4. Maintenance manuals.

PART 2 – PRODUCTS

2.01 ACCEPTABLE MANUFACTURERS

A. Materials and equipment shall be in strict accordance with the following:

ULDF 220304AE - C & D Bays SECTION 21 59 01 - 2

1. Underwriters Laboratories, Approved Fire Protection Equipment List.

2. NFPA Standard 13, Installation of Sprinkler Systems.

3. NFPA Standard 14, Standpipe, Private Hydrant, and Hose Systems.

4. NFPA Standard 20, Fire Pumps, Centrifugal.

5. NFPA Standard 24, Private Fire Service Mains.

6. NFPA Standard 231C, Rack Storage of Materials.

7. The authority having jurisdiction.

2.02 ACCESSORIES AND COMPONENTS

A. It is the intent of this specification that all systems and equipment shall be complete with the necessary quantity of accessories and components required to insure a properly functioning installation.

PART 3 – EXECUTION

3.01 INSTALLATION

A. Unless otherwise noted or herein specified, materials and equipment shall be installed in strict accordance with the following:

1. The manufacturer’s recommendation.

2. NFPA Standard 13, Installation of Sprinkler Systems.

3. NFPA Standard 14, Standpipe, Private Hydrant, and Hose Systems.

4. NFPA Standard 20, Fire Pumps, Centrifugal.

5. NFPA Standard 24, Private Fire Service Mains.

6. NFPA Standard 231C, Rack Storage of Materials.

7. The authority having jurisdiction.

B. Electrical work herein specified and/or noted shall be executed in strict conformance with the National Electrical Code.

C. The above mentioned standards shall be considered minimum and shall not be construed to allow deviation from requirements in excess of these Codes.

3.02 SUPPORTS

A. Provide all auxiliary steel (beams, channels, angles, formed shapes, etc.) required to properly support equipment and distribution systems.

B. Utilize galvanized components (wherever practical) or field-apply two coats of corrosion resistant primer.

ULDF 220304AE - C & D Bays SECTION 21 59 01 - 3

C. Seismic anchorages, restraints and equipment supports shall comply with National

Uniform Seismic Installation Guidelines.

3.03 RECORD DRAWINGS

A. Promptly record (in a neat, legible and red-color-only accentuated fashion, on a complete, designated set of contract documents containing no other markings) all significant differences reflected by the actual installation (sizes, capacities, locations and features of distribution systems and equipment).

B. Thoroughly review such recordings weekly with the Contracting Officer’s Technical

Representative and submit the completed set at the completion of work.

3.04 MAINTENANCE MANUAL

A. Manuals shall be contained in heavy duty, 3-ring vinyl covered loose-leaf binders

(suitable sets of manageable size, like equipment and systems grouped) complete with:

1. Typewritten description of contents within a clear plastic sleeve on the spine.

2. Dividers with labeled, celluloid covered tabs.

3. Protective plastic jacket enclosures for diagnostic software.

B. Manuals shall contain:

1. Title page delineating:

a. Name of project.

b. General nature of contents.

c. Name and address of Contractor.

d. Applicable cross-references to related volumes.

2. Table of contents listing equipment (including the associated alphanumerical designation) and the corresponding section (tab).

3. Pertinent equipment information, including:

a. Manufacturer and serial number.

b. Approved submittal.

c. Operating and maintenance instructions.

d. Names, addresses and telephone numbers relative to parts and service.

3.05 INSTRUCTION

ULDF 220304AE - C & D Bays SECTION 21 59 01 - 4

A. Provide thorough, organized instruction regarding equipment and systems operation to the Contracting Officer’s Technical Representative (secure written acknowledgement and forward to the Contracting Officer).

3.09 INSPECTION

A. After completion of the installation and at the start of the guarantee year, this Contractor shall execute the National Automatic Sprinkler and Fire Control Association, Inc., Standard Form of “Inspection Agreement”, without charge to the Government, calling for four (4) inspections of the sprinkler system during the guarantee year.

B. The Standard Form of the National Automatic Sprinkler and Fire Control

Association, Inc., Report of Inspection, shall be filled out in four copies after each inspection and the copies sent to the Contracting Officer’s Technical Representative. The Contractor shall conduct flow test as directed by the authority having jurisdiction and shall submit a Certificate of Acceptance prior to request for final payment.

END OF SECTION

Repair/Replace HVAC Systems, B3 GENERAL PROVISIONS, PIPING SYSTEMS ULDF 220304AE – CF & D Bays SECTION 21 59 05 - 1

SECTION 21 59 05

GENERAL PROVISIONS, PIPING SYSTEMS

1.01 STANDARDS

A. Pipe, tube and fittings shall comply with all governing Codes and shall conform to the applicable standards of ASTM, ASME, ASCE, ANSI and AWWA.

1.02 OPTIONS

A. Whenever these specifications describe more than one material and/or component under a particular category, it is the intent that this Contractor may exercise his option (in consistent fashion) in accordance with the same unless otherwise specifically shown on the drawings.

1.03 MATERIAL LISTS

A. Prior to installation, submit a list of materials to the Engineer for approval that shall conform with the following:

1. Each piping system (including pipe material, pipe joints, fittings, valves, etc.)

shall be listed separately.

2. Listing of pipe material, pipe joints (including the associated joining materials) and fittings shall be complete with a description of all parameters contained in the Bidding Documents (schedule number, material, pressure classification, standards, etc.). THE ENGINEER WILL NOT TRANSFER INFORMATION FROM

THE BIDDING DOCUMENTS TO THE LISTINGS. INCOMPLETE LISTINGS WILL

BE DISAPPROVED.

3. Listings of valves shall be similar to those for pipe material, pipe joints and fittings and shall be complete with the manufacturer’s product description literature. LISTINGS WITH INSUFFICIENT LITERATURE WILL BE

DISAPPROVED.

A. Valves:

1. Above grade piping systems:

a. Crane, Fairbanks, Jenkins, Lukenheimer, Nibco, Powell, Stockham or approved equal.

2. Valves, below grade piping systems:

ULDF 220304AE – CF & D Bays SECTION 21 59 05 - 2

a. Grinnell, Kennedy, Mueller or approved equal.

B. Grooved piping systems:

1. Victaulic, Anvil or approved equal.

A. General:

1. Changes in direction shall be made through fittings, except that welding outlet fittings may be used for branch piping greater than or equal to two (2) inches when the branch piping is a minimum of two pipe sizes smaller than the associated main piping.

2. Provide isolating valves at all equipment requiring service.

3. Provide unions, flanges or disconnects required to facilitate convenient equipment removal.

4. Provide anchors, swings, thrust blocks, tie rods, flexible connectors, etc.

required to prevent noise and allow for expansion.

B. Above grade:

1. Furnish and install piping substantially as shown on the drawings, as high as possible, parallel to building walls, clear of structural members (except when penetrations are shown or approved) and clear of equipment removal areas.

C. Below grade:

1. Furnish and install piping substantially as shown on the drawings, parallel to building walls (except where shown otherwise) and in strict accordance with the designated inverts.

2. Provide trenching, backfilling and compacting in accordance with the requirements set forth in Division 2 and/or as shown on the drawings.

3. Plug or cap open ends of piping below grade when work is stopped and thoroughly flush piping (using water flow rates with velocities of 5 to 6 ft/sec) upon completion of work.

D. Sleeves:

1. Provide sleeves at ALL points (unless otherwise noted or specified) where piping systems pass through building walls, floors and partitions:

a. Units penetrating walls below grade shall be as detailed (“Sleeves Below Grade”).

ULDF 220304AE – CF & D Bays SECTION 21 59 05 - 3

b. Units penetrating floors shall be Schedule 40, black steel (ASTM A-53) arranged to provide a waterproofing flange by projecting 1/2 inch above finished floor (except in Mechanical/Electrical Equipment Rooms where the projection shall be 2 inches above finished floor).

c. Units penetrating walls or partitions (constructed of masonry and/or fire or smoke rated) shall be Schedule 40, black steel (ASTM A-53), neatly fitted and sealed to the associated opening.

d. Units penetrating walls or partitions (not constructed of masonry nor fire or smoke rated) shall be neatly fitted and not require sleeves.

e. Openings through existing walls or partitions constructed of solid masonry shall be core drilled and shall not require sleeves.

2. Seal annular spaces with intumescent, synthetic elastomer (3M brand fire barrier; Caulk CP 25, Putty 303).

E. Escutcheons:

1. Provide chrome plated, flat plate type escutcheons at ALL POINTS where

EXPOSED piping systems pass through building walls, floors and partitions in FINISHED areas.

F. Painting:

1. Provide rust inhibitive primer and two finish coats (fire engine red) for exposed exterior and interior piping systems.

3.02 TESTS

A. Piping system tests, as herein specified, shall be conducted in the presence of the authority having jurisdiction (as arranged with the Engineer) before backfilling, concealment and/or insulation as applicable, and leaky joints shall be remade and retested.

Repair/Replace HVAC Systems, B3 PIPING SYSTEMS, ABOVE GRADE ULDF 220304AE – C & D Bays SECTION 21 59 06 - 1

SECTION 21 59 06

PIPING SYSTEMS, ABOVE GRADE

1.01 REQUIREMENTS

A. Furnish and install complete above grade piping systems in accordance with the sizes and/or locations shown on the drawings.

2.01 DESCRIPTION

A. Pipe material, pipe joints, fittings:

1. Ferrous in strict accordance with the specified standards.

B. Valves:

1. General:

a. Underwriters Laboratories listed.

b. Factory Mutual approved.

2. Ball (line control):

a. Bronze two-piece body, screwed, bronze ball, full port, replaceable reinforced TFE trim, 300 spig N-SCW.

b. Worm gear actuator, hand wheel, raised position indicator, supervisory switch compatible.

c. Nibco No. KT-505W.

3. Butterfly (line control):

a. Ductile iron body, lug type for dead end service (to facilitate equipment isolation, removal and service) or wafer type for in-line service; stainless steel stem, nickel plated ductile iron disk; molded-in, resilient BUNA-N seat.

b. Worm gear actuator, hand wheel, raised position indicator, supervisory switch compatible.

c. Nibco No. D3510-8.

4. Check:

ULDF 220304AE – C & D Bays SECTION 21 59 06 - 2

a. 2 inches and smaller:

1) Bronze body, screwed, swing type, screwed cap, replaceable bronze disk, 200 psig N-SCW.

2) Nibco No. KT-403-W.

b. 2-1/2 inches and larger:

1) Iron body, flanged, swing type, bolted cap, replaceable bronze trim, 175 psig N-SCW.

2) Nibco No. F-908-W.

5. Gate (line control):

a. 2 inches and smaller:

1) Bronze body, screwed, OS&Y, screw-over bonnet, solid wedge disk, 175 psig N-SCW.

2) Nibco No. T-104-0.

b. 2-1/2 inches and larger:

1) Iron body, flanged, OS&Y, bolted bonnet, solid wedge disk, replaceable bronze trim, supervisory switch compatible, 175 psig

N-SCW.

2) Nibco No. F-607-OTS.

6. Drain and trim:

a. Ball:

1) Bronze two-piece body, screwed, blow-out proof stem, chrome plated bronze ball, full port, replaceable reinforced TFE trim, 175 psig N-SCW.

2) Nibco No. KT-585-70.

b. Globe:

1) Bronze body, screwed, rising stem, union bonnet, replaceable rubber disk, 175 psig N-SCW.

2) Nibco No. KT-65UL.

C. Gaskets:

1. Metal type.

ULDF 220304AE – C & D Bays SECTION 21 59 06 - 3

A. Pitch piping to permit system drainage by gravity.

B. Furnish and install drain valves at all low points.

C. Furnish and install 30” x 30” x 6” thick concrete pads to serve as splash blocks where system drain and/or test valves discharge on grade.

3.02 TEST

A. Test the entire system (new work, isolated from existing) hydrostatically at 200 psig.

B. The system shall be leak-tight after a 3-hour duration.

Repair/Replace HVAC Systems, B3 PIPING SYSTEMS HANGERS AND SUPPORTS ULDF 220304AE – C & D Bays SECTION 21 59 09 - 1

SECTION 21 59 09

PIPING SYSTEMS HANGERS AND SUPPORTS

A. Furnish and install piping systems hangers and supports for the piping systems shown on the drawings.

1.02 STANDARDS

A. Units, including piping system attachments, structural attachments, hanger rods, anchors, bracing, alignment guides and all necessary accessories shall be in accordance with ANSI Standard B31.1 and MSS Standard SP-58.

A. F & S, Carpenter & Patterson, Fee & Mason, Grinnell or approved equal.

2.02 DESCRIPTION

A. Basic components (piping system attachments, structural attachments, hanger rods, alignment guides, etc.):

1. Stock, production units.

A. Units shall be capable of properly supporting each piping system under all operating conditions imposed by the transported medium (gas or liquid) including provisions for:

1. Expansion and contraction (movement shall not cause disengagement).

2. Preventing excessive stress.

3. Threaded vertical adjustment subsequent to installation.

4. Shock absorbing devices as required.

B. Hanger rods shall be subjected to tensile loads only; where axial or lateral movements are anticipated, suitable linkages shall be provided.

C. Piping system attachments serving copper piping systems shall be copper-clad.

ULDF 220304AE – C & D Bays SECTION 21 59 09 - 2

D. Structural attachments shall be secured to the building structural system, not to roof decks or components of the mechanical and electrical systems (ductwork, piping, conduit, etc.); however, attachments serving piping 1” and smaller may be secured to floor decks.

E. Piping systems support shall be completely independent of the associated equipment.

3.02 ARRANGEMENT

A. Locate and position units to complement an associated piping system arrangement which assures proper access for maintenance and service.

B. Position structural attachments to accommodate piping system elevations which complement a coordinated ceiling plenum space arrangement.

Repair/Replace HVAC Systems, B3 SPRINKLERS ULDF 220304AE – C & D Bays SECTION 21 59 30 - 1

SECTION 21 59 30

SPRINKLERS

A. Furnish and install sprinklers in accordance with the parameters shown on the drawings and herein specified.

B. Units shall be complete with all features required by each particular system (wet pipe, dry pipe, deluge, preaction, etc.) and all special circumstances resulting from job conditions.

A. Reliable, Viking or approved equal.

2.02 DESCRIPTION

1. Center strut solder in compression principle, individually hydrostatically tested.

2. Appropriate fusing point and orifice size (marked and color-coded).

3. Configuration (concealed, pendent, sidewall, upright) as scheduled.

B. Construction:

1. Copper based alloy, finish as scheduled.

2. Matching escutcheon (units served via concealed piping).

C. Emergency sprinkler cabinet:

1. Steel enclosure, red lacquer finish.

2. Six sprinkler heads of each type and temperature rating.

3. Two wrenches.

Repair/Replace HVAC Systems, B3 SPRINKLERS ULDF 220304AE – C & D Bays SECTION 21 59 30 - 2

A. Units shall be installed (arrangement and spacing) in strict accordance with the requirements set forth in the specified standards.

B. Additionally, the aesthetic value of the associated reflected ceiling plan (as applicable) shall be maintained by providing symmetry with all other involved elements, including visible portions of ceiling support systems, lighting, air distribution terminals, etc.

C. Cover each sprinkler subsequent to installation with a small plastic bag until space painting is complete.

Repair/Replace HVAC Systems, B3 IDENTIFICATION ULDF 220304AE – C & D Bays SECTION 21 59 91 - 1

SECTION 21 59 91

IDENTIFICATION

A. Furnish and install identification for all equipment, piping and valves.

B. Identification shall include labels, valve location indicators and warning tape.

A. Seton, Brady or approved equal.

A. Labels:

1. Equipment:

a. Standard, phenolic, engraved nameplates.

b. 3/8” high by 1/4” letter size.

2. Piping:

1) Semi-rigid plastic with pre-set curl (designed to “snap-on” with substantial overlap), sized and color-coded in accordance with ANSI Standard A 13.1, complete with pipe size and directional flow arrows.

b. 2 ½ inches and larger:

1) Neatly stenciled (with appropriately sized lettering indicating pipe size, and directional flow arrows), 50 foot intervals.

B. Valve location indicators:

1. 1 inch diameter, pressure sensitive adhesive spot markers.

2. Color-coded (yellow).

C. Warning tape (underground utilities):

ULDF 220304AE – C & D Bays SECTION 21 59 91 - 2

a. 3.5 mils thick, 6” wide, appropriate APWA color code, heavy duty polyethylene.

A. Equipment labels (using the precise alphanumerical designation shown on the drawings) shall be securely mounted (in a conspicuous position) with appropriate fasteners and shall be applied to ALL equipment.

B. Piping labels shall be located to ensure continuous systems identity.

C. Valve location indicators shall be adhered to suspended ceiling system grids and/or access doors at all main, branch main and branch piping valve locations.

DIVISION 22 – MECHANICAL

SECTION 225601 – 225899

PLUMBING

PLUMBING TOC -1

22 56 01 General Provisions

22 56 05 General Provisions, Piping Systems

22 56 07 Domestic Water Piping Systems, Above Grade

22 56 15 Sanitary Waste and Vent Piping Systems, Above And Below Grade

22 56 49 Piping Systems Hangers and Supports

22 56 51 Cleanouts

22 56 70 Floor Drains

22 57 60 Insulation

22 58 91 Identification

ULDF 220304AE – C & D Bays SECTION 22 56 01 - 1

SECTION 22 56 01

A. Furnish and install equipment and materials required to provide a complete plumbing system.

1.02 FABRICATION DRAWINGS, MATERIAL LISTS AND EQUIPMENT

SUBMITTALS

A. Unless otherwise noted or herein specified, the following are required:

1. Material lists:

a) Piping systems.

b) Piping hangers and supports.

c) Insulation systems.

2. Fabrication drawings:

a) Piping systems.

3. Equipment submittals:

a) Cleanouts.

b) Floor Drains.

c) Backflow Preventer Assemblies.

d) Gauges, Thermometers and Temporary Pressure/Temperature Wells.

e) Identification.

4. Record drawings.

5. Maintenance manuals.

A. Materials and equipment shall be in strict accordance with the parameters herein specified.

ULDF 220304AE – C & D Bays SECTION 22 56 01 - 2

A. It is the intent of this specification that systems and equipment shall be complete with the necessary quantity of all accessories and components required to insure a properly functioning installation.

A. Unless otherwise noted or herein specified, all materials and equipment shall be installed in strict accordance with the manufacturer’s recommendations.

B. System components shall be installed in a fashion ensuring easy serviceability.

C. Electrical work herein specified and/or noted shall be executed in strict conformance with the National Electrical Code.

3.02 SUPPORTS

A. Provide auxiliary steel (beams, channels, angles, formed shapes, etc.) required to properly support equipment and distribution systems.

B. Utilize galvanized components (wherever practical) or field apply two coats of corrosion resistant primer.

C. Seismic anchorages, restraints and equipment supports shall comply with National

A. Promptly record (in a neat, legible and red-color-only accentuated fashion, on a complete, designated set of bidding documents containing no other markings)

1) Title page delineating:

ULDF 220304AE – C & D Bays SECTION 22 56 01 - 3

a. Name of project.

b. General nature of contents.

c. Name and address of Contractor.

d. Applicable cross-references to related volumes.

2) Table of contents listing equipment (including the associated alphanumerical designation) and the corresponding section (tab).

3) Pertinent equipment information, including:

a. Manufacturer and serial number.

b. Approved submittal.

c. Operating and maintenance instructions.

d. Names, addresses and telephone numbers relative to parts and service.

4) Field checking start-up reports.

3.05 INSTRUCTION

A. Provide thorough, organized instruction regarding equipment and systems operation to the Contracting Officer’s Technical Representative (secure written

ULDF 220304AE – C & D Bays SECTION 22 56 05 - 1

SECTION 22 56 05

A. Pipe, tube and fittings shall comply with governing codes and shall conform to the applicable standards of ASTM, ASME, ASCE, ANSI and AWWA.

1.02 OPTIONS

A. Whenever copper and ferrous piping systems are specified two (2) inches and smaller and two and one-half (2-1/2) inches and larger, respectively, copper piping systems may be provided (in consistent fashion, by piping system) for sizes four (4) inches and smaller (unless otherwise noted).

B. Ferrous (excluding cast iron) piping systems are generally specified with screwed joints and fittings serving sizes two (2) inches and smaller and with flanged joints and weld fittings or (for designated systems) grooved joints and fittings serving sizes two and one-half (2-1/2) inches and larger; unless otherwise noted, flanged joints and weld fittings or (for designated systems) grooved joints and fittings may be provided (in consistent fashion, by piping system) for piping one and one-half (1- 1/2) inches and larger and/or screwed joints and fittings for sizes four (4) inches and smaller.

C. Copper piping systems are generally specified with soldered joints; mechanical joints

(for designated systems) may be provided (in consistent fashion, by piping system).

D. Bronze body valves are generally specified with screwed ends; unless otherwise noted, solder ends (in strict accordance with the listed parameters) may be provided (in consistent fashion, by piping system) for copper piping systems.

A. Prior to installation, submit a list of materials to the Engineer for approval that shall conform with the following:

2. Listings of pipe material, pipe joints (including the associated joining materials) and fittings shall be complete with a description of all parameters contained in the bidding documents (schedule number, material, pressure classification, standards, etc.). THE ENGINEER WILL NOT TRANSFER INFORMATION FROM

THE BIDDING DOCUMENTS TO THE LISTINGS. INCOMPLETE LISTINGS WILL

BE DISAPPROVED.

literature. INCOMPLETE LISTINGS WILL BE DISAPPROVED.

ULDF 220304AE – C & D Bays SECTION 22 56 05 - 2

2.01 ACCEPTABLE VALVE MANUFACTURERS

A. Valves:

1. Apollo, Crane, Fairbanks, Jenkins, Keystone, Lukenheimer, Nibco, Powell, Stockham or approved equal.

B. Grooved piping systems:

1. Griswold, Victaulic or approved equal.

C. Mechanical joint systems:

1. Ridgid, Viega or approved equal.

1. Changes in direction shall be made through fittings, except that welding outlet fittings may be used for branch piping two (2) inches and larger, provided the branch piping is a minimum of two pipe sizes smaller than the associated main piping.

2. Provide isolating valves at equipment requiring service.

equipment removal.

possible (except that piping shall generally be run below ductwork to facilitate access to valves, vents, flow meters, etc.), parallel to building walls, clear of structural members (except when penetrations are shown or approved) and clear of equipment removal areas.

ULDF 220304AE – C & D Bays SECTION 22 56 05 - 3

3. Plug or cap open ends when work is stopped and thoroughly flush (using water flowrates with velocities of five to six ft/sec) upon completion of work.

1. Provide sleeves at ALL points (unless otherwise noted or specified) where piping systems pass through building walls, floors and partitions:

a. Units penetrating walls below grade shall be as detailed (Sleeves Below

Grade).

b. Units penetrating floors shall be Schedule 40, black steel (ASTM A-53) arranged to provide a waterproofing flange by projecting 1/2” above the projection shall be 2” above finished floor).

e. Openings through existing walls or partitions constructed of solid masonry shall be core drilled and shall not require sleeves.

1. Provide chrome plated flat plate type escutcheons at ALL POINTS where

1. Provide rust inhibitive primer and two finish coats for uninsulated, exposed exterior and interior, ferrous piping systems; color as noted, scheduled or directed.

3.02 TESTS

A. Piping systems tests herein specified shall be conducted in the presence of the authority having jurisdiction before backfilling, concealment and/or insulation as applicable and all leaky joints shall be remade and retested.

Repair/Replace HVAC Systems, B3 DOMESTIC WATER PIPING SYSTEMS, ABOVE GRADE ULDF 220304AE – C & D Bays SECTION 22 56 07 - 1

SECTION 22 56 07

DOMESTIC WATER PIPING SYSTEMS, ABOVE GRADE

A. Furnish and install complete above grade domestic water piping systems in accordance with the sizes and locations shown on the drawings.

B. All fittings, joints, valves, fixture fittings etc. shall be NSF372 and NSF61 compliant.

A. Pipe material:

1. Type L, hard copper tubing conforming to ASTM Specification B-88.

B. Pipe joints:

1. Soldered type, joined with lead free, tin-copper-selenium solder.

C. Fittings:

1. Wrought solder joint type conforming to ANSI Standard B16.22.

D. Valves:

1. Ball:

a. Bronze two-piece body, screwed, chrome plated bronze ball, full port, replaceable reinforced TFE trim, lever handle, 600 psig WOG.

b. Non-conductive extended handles, insulation protection sleeve, adjustable memory stop, hose end with cap and chain for drain service.

c. Nibco No. T-585-70.

2. Butterfly:

a. 6 inches and smaller:

1) Iron body, lug type for dead-end service (to facilitate equipment isolation, removal and service) or wafer type for in-line service;

molded-in, resilient EPDM seat (250F); extended neck, top plate.

ULDF 220304AE – C & D Bays SECTION 22 56 07 - 2

2) One piece, stainless steel shaft; concentric seating, polished aluminum bronze disk; inboard bronze bearings, heavy duty top bushing, self adjusting stem seal; indicator, locking handle, 200 psig WOG.

3) Non-conductive extended handles, insulation protection sleeve, adjustable memory stop.

4) Keystone 221/222.

b. 8 inches and larger:

1) Same as 6 inches and smaller with worm gear actuator.

3. Check:

a. 3 inches and smaller:

1) Bronze body, screwed, swing type, screwed cap, replaceable bronze disk, 200 psig WOG.

2) Nibco No. T-413.

b. 4 inches and larger:

1) Iron body, flanged, swing type, bolted cap, replaceable bronze disk and seat, 200 psig WOG.

2) Nibco No. F-918.

4. Gate:

1) Bronze body, screwed, rising stem, union bonnet, solid wedge disk, 200 psig WOG.

2) Nibco No. T-124.

b. 4 inches and larger:

1) Iron body, flanged, OS&Y, bolted bonnet, solid wedge disk, replaceable bronze trim, 200 psig WOG.

2) Nibco No. F-617-0.

5. Globe:

1) Bronze body, screwed, globe or angle pattern, rising stem, union bonnet, replaceable bronze disk, 200 psig WOG.

ULDF 220304AE – C & D Bays SECTION 22 56 07 - 3

2) Nibco No. T-235-B or T-335-Y.

b. 4 inches and larger:

1) Iron body, flanged, globe or angle pattern, OS&Y, bolted bonnet, replaceable bronze disk and seat, 200 psig WOG.

2) Nibco No. F-718 or F-818.

A. Pitch domestic hot water recirculation piping up in the direction of flow 1/4 inch in 25 ft.

B. Furnish and install manual air vents at high points in domestic hot water recirculating piping, complete with remote air chambers and connecting tubing as required to provide easy access.

C. Furnish and install drain valves at low points.

A. Test the entire water distribution system (new work, isolated from existing) hydrostatically at 200 psig.

3.03 DISINFECTION

1. Before being placed in service, the entire system (new work, isolated from existing) shall be chlorinated in strict accordance with AWWA standard C601-54 and regulations set forth by local building and health department codes.

2. Chlorination may be applied by:

a. Introducing a chlorine gas-water mixture.

b. Directly feeding chlorine gas using a solution feed chlorinator, pressure feed chlorinator or pressure feed chlorinator with pipeline diffuser.

c. Applying a mixture of calcium hypochlorite and water (mixed to form a paste and thinned to a slurry prior to injection).

B. Procedure:

1. Prior to disinfection, thoroughly flush system and post warning signs at all outlets.

ULDF 220304AE – C & D Bays SECTION 22 56 07 - 4

2. Fill system to insure a chlorine concentration of 50 parts per million of available chlorine.

3. Retain solution for 8 hours and operate all accessories and valves.

4. Subsequently, thoroughly flush system until the bacteriological and chemical composition of its content matches that of the associated permanent potable water supply.

5. Submit test results (conducted and prepared by an approved, certified laboratory) to the authorities having jurisdiction and the Engineer.

Repair/Replace HVAC Systems, B3 SANITARY WASTE AND VENT PIPING SYSTEMS, ULDF 220304AE – C & D Bays ABOVE AND BELOW GRADE

SECTION 22 56 15 - 1

SECTION 22 56 15

SANITARY WASTE AND VENT PIPING SYSTEMS, ABOVE AND BELOW GRADE

A. Furnish and install complete above and below grade sanitary waste and vent piping systems in accordance with the sizes and locations shown on the drawings.

B. Systems scope shall be as shown and/or noted on the drawings.

1. Rigid, Schedule 40, polyvinyl chloride (PVC) conforming to ASTM Specification

D-1785.

1. Solvent cement type.

1. Rigid, Schedule 40, polyvinyl chloride (PVC) conforming to ASTM Specification

D-1785.

3.01 TEST

A. Test the entire sanitary waste and vent system (new work, isolated from existing) hydrostatically at 5 psig, minimum.

ULDF 220304AE – C & D Bays SECTION 22 56 49 - 1

SECTION 22 56 49

A. Furnish and install piping systems hangers and supports for the piping systems shown on the drawings.

1.02 STANDARDS

A. Units, including piping system attachments, structural attachments, hanger rods, accordance with ANSI Standard B31.1 and MSS Standard SP-58.

A. F & S, Carpenter & Patterson, Fee & Mason, Grinnell.

A. Basic components (piping system attachments, structural attachments, hanger rods, alignment guide, etc.):

1. Stock, production units.

B. High density insulation filler pieces:

1. Molded, rigid urethane, thickness equal to that of the specified adjoining insulation, 6 inches long, 4 lbs/cu ft, 0.03 perm inches (ASTM Specification C-355, dry cup), 125 lbs/sq in (compressive strength).

C. Protective shields:

1. Galvanized steel, formed to fit the adjoining insulation, 180 degrees arc.

A. Units shall be capable of properly supporting each piping system under operating conditions imposed by the transported medium (gas or liquid), including provisions for:

1. Expansion and contraction (movement shall not cause disengagement).

ULDF 220304AE – C & D Bays SECTION 22 56 49 - 2

2. Preventing excessive stress.

3. Threaded vertical adjustment subsequent to installation.

4. Shock absorbing devices as required.

B. Hanger rods shall be subjected to tensile loads only; where axial or lateral movements are anticipated, suitable linkages shall be provided.

C. Piping system attachments serving copper piping systems shall be copper clad.

D. Structural attachments shall be secured to the building structural system (as shown), NOT to ROOF decks or components of the mechanical and electrical systems (ductwork, piping, conduit, etc.); however, attachments serving piping 2 inches and smaller may be secured to FLOOR decks.

E. Hangers and/or supports for cast iron piping shall be within 18 inches of each joint

(both sides).

F. Piping systems support shall be completely independent of the associated equipment and terminals.

Repair/Replace HVAC Systems, B3 CLEANOUTS ULDF 220304AE – C & D Bays SECTION 22 56 51 - 1

SECTION 22 56 51

CLEANOUTS

A. Furnish and install cleanouts in accordance with the locations shown on the drawings, where required by code and where necessary to facilitate the maintenance of sanitary and storm systems.

B. Units shall be compatible with all design parameters shown on the drawings and as herein specified, complete with features and all necessary accessories required for a coordinated installation (carpet markers, recess for tile, access cover, etc.).

A. Josam, Smith, Wade, Zurn or approved equal.

A. Units for installation in floors:

1. Body:

a. Cast iron, round, 2-piece, adjustable, flashing clamp (as applicable).

2. Plug:

a. Bronze, screwed, lead or neoprene seal.

3. Top:

a. Pedestrian and light wheel traffic:

1) Nickel alloy, scoriated, round or square (as appropriate), secured, carpet marker (as required).

b. Heavy wheel traffic:

1) Cast iron, scoriated, round, loose set.

B. Units for installation in piping:

1. Body:

a. Cast iron, wye (preferred) or tee (as required).

Repair/Replace HVAC Systems, B3 CLEANOUTS ULDF 220304AE – C & D Bays SECTION 22 56 51 - 2

2. Plug:

a. Bronze, screwed, lead or neoprene seal.

3. Access cover:

a. Polished brass, frame (as required), secured.

A. Units shall be line size for pipe sizes up to and including 4-inch, 4-inch for pipe sizes 5-inch through 8-inch, and 6-inch for pipe sizes 10 inches and larger.

B. Units serving non-ferrous and ferrous piping systems shall possess similar features.

Repair/Replace HVAC Systems, B3 FLOOR DRAINS ULDF 220304AE – C & D Bays SECTION 22 56 70 - 1

SECTION 22 56 70

FLOOR DRAINS

A. Furnish and install floor drains in accordance with the sizes and locations shown on the drawings.

B. Units shall conform with the parameters shown on the drawings and as herein specified, complete with body, strainer, deep seal trap and accessories required for a properly coordinated installation.

1.02 SUBMITTALS

A. DRAIN SUBMITTALS SHALL BE COMPLETE WITH A TYPEWRITTEN COVER SHEET

CONTAINING A SEPARATE PARAGRAPH THOROUGHLY DESCRIBING ALL

PARAMETERS OF EACH DRAIN INCLUDING ITS GENERAL AREA OF APPLICATION

AND ASSOCIATED ALPHANUMERICAL DESIGNATION SHOWN ON THE DRAWINGS

AND HEREIN SPECIFIED (SUBMITTALS WITHOUT A COVER SHEET WILL BE

DISAPPROVED).

A. Josam, Smith, Wade, Zurn or approved equal.

A. Body:

1. 2-piece.

2. Double drainage flange with weepholes.

3. Non-puncturing flashing clamp.

B. Strainer:

1. Adjustable collar.

2. Narrow, slotted openings.

3. High area drainage.

4. Vandal resistant secured.

Repair/Replace HVAC Systems, B3 FLOOR DRAINS ULDF 220304AE – C & D Bays SECTION 22 56 70 - 2

A. Adjust strainer elevation to complement finished floor level.

Repair/Replace HVAC Systems, B3 INSULATION ULDF 220304AE – C & D Bays SECTION 22 57 60 - 1

SECTION 22 57 60

INSULATION

A. Furnish and install complete insulation systems in accordance with the parameters shown on the drawings and herein specified, including the re-insulation of all equipment and/or piping systems that are shown, schedule or noted to be abated (refer to related documents), relocated and wherever “tie-ins” (new work to existing) require the removal of existing insulation.

B. Systems shall include (unless specifically excepted as herein specified or shown and/or noted on the drawings) all associated components (pipe, fittings, valves, pumps, expansion tanks, storage tanks, equipment, accessories, etc.).

1.02 DEFINITION OF TERMS

A. Finished areas:

1. Those areas intended for habitation or occupancy where rough surfaces are plastered, paneled or otherwise finished.

B. Unfinished areas:

1. Those areas intended for use as storage or work areas where rough surfaces are not plastered, paneled or otherwise finished (e.g., unexcavated spaces, crawl spaces, certain storage rooms, equipment rooms, tunnels, etc.).

C. Concealed spaces:

1. Those spaces between ceiling and floor construction, between double walls or furred-in spaces.

D. Exposed:

1. “Open to view”.

1.03 FIRE HAZARD CLASSIFICATION

A. Insulation systems, unless otherwise specified herein, shall have Fire Hazard

Classification not to exceed Flame Spread 25 and Smoke Developed 50 when tested in accordance with ASTM Specification E-84. (Evidence of classification shall be an Underwriters Laboratories label or listing).

1.04 ENGINEER’S INSPECTION

A. The Engineer, at his discretion, in the presence of the Contractor’s authorized representative, may take samples of installed insulation for the purpose of

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 2 checking materials and/or method of application, whereafter, the Contractor shall patch the sample areas.

1.05 LABELS

A. Each insulation and accessory component shall bear the manufacturer’s label of description.

1.06 SUBMITTALS

A. Unless otherwise specified, submit the following for approval:

1. A description of the type of insulation and all accessories (jackets, wiring, banding, fastening devices, adhesives, coatings, mastics, sealing tape, etc.)

proposed for each type of service, including the manufacturer’s product literature.

2. Samples of insulation and/or accessories as requested.

3. A SIGNED AFFIDAVIT (attached) attesting to strict compliance with the schedule mandates and installation requirements hereinafter described.

1. Owens-Corning, Johns-Manville (Schuller International), Knauf, CSG, Armstrong, Dow Chemical or approved equal.

B. Fibrous glass, 2-piece, preformed (molded) fitting, flange and valve body insulation:

1. Hamfab or approved equal.

C. Adhesives, coatings and mastics:

1. Foster or approved equal.

A. Fibrous glass insulation:

1. Density:

a. Pipe insulation, 4.0 lbm/cu ft.

b. Pipe fitting and valve body insulation, 4-5 lbm/cu ft.

c. Board insulation, concealed application 3 lbm/cu ft.

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 3

d. Board insulation, exposed application 6 lbm/cu ft.

e. Blanket insulation, 1 lbm/cu ft.

2. Thermal conductivity:

a. Pipe, block, board and fitting insulation, 0.26 Btu/hr/sq ft/F/in at 75F.

b. Blanket insulation, 0.28 Btu/hr/sq ft/F/in at 75F.

3. Moisture absorption:

a. 0.2% by volume after 96 hours at 120F and 95% rh.

4. Capillarity:

a. Negligible after 24 hours.

5. Shrinkage or expansion:

a. Fully cured to insure negligible dimensional changes when tested in accordance with ASTM Specification C-312.

B. Flexible foamed plastic insulation:

1. Density:

a. 4.5 to 8.5 lbm/cu ft when tested in accordance with ASTM Specification

D-1622.

2. Thermal conductivity:

a. 0.28 Btu/hr/sq ft/F/in at 75F when tested in accordance with ASTM

Specification C-177.

3. Water vapor transmission:

a. 0.1 perm inches when tested in accordance with ASTM Specification

C-355 (wet cup).

4. Operating temperature range:

a. 0 to 200F.

5. Fire Hazard Classification:

a. Flame Spread 25, Smoke Developed 150 when tested in accordance with

ASTM Specification E-84.

6. Thermal stability:

a. 7.0% shrinkage during 7 days at 200F when tested in accordance with

ASTM Specification C-548.

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 4

C. Insulation jackets:

1. Class 1 jackets:

a. Heavy duty, embossed, white Kraft paper, puncture resistance of 50 breach units, bonded to heavy duty aluminum foil (reinforced with glass fiber yarn), water vapor permeance of 0.02 perms.

2. Class 2 jackets:

a. Heavy duty aluminum foil, (reinforced with glass fiber yarn), puncture resistance of 25 breach units, bonded to heavy duty Kraft paper, water vapor permeance of 0.02 perms.

3. Class 3 jackets:

a. Best quality canvas, 6 ounces per square yard, 4 ounces per square yard for fittings 2 inches and smaller.

4. Class 4 jackets:

a. High impact resistant, 0.028 inch thick, rigid, ULTRA-VIOLET

RESISTANT, polyvinyl chloride, factory cut, preset curl, 1-1/2 inch overlap.

5. Class 5 jackets:

a. Flat (not corrugated), mill finish, 16-mil, Type 304 stainless steel.

6. Class 6 jackets:

a. Flat (not corrugated), mill finish, 16-mil, Type 3003 or 5005 aluminum.

7. Premolded polyvinyl chloride jackets:

a. One piece, seamless, high impact type, puncture resistance of 200 breach units.

D. Wiring, banding and fastening devices:

1. Wire:

a. No. 16 gauge, copper clad or galvanized, annealed, steel wire (unless otherwise specified).

2. Wire mesh:

a. Woven, galvanized, (galvanized after weaving) No. 20 gauge steel wire, nominal 1 inch hexagonal openings.

3. Insulation fasteners:

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 5

a. Adhesive secured type, installed in accordance with all necessary provisions to avoid damaging the equipment, capable of supporting an axial load of 40 lbs, sized in accordance with the thickness of the associated insulation, metal speed washer designed to secure the insulation firmly in place without excessive compression.

b. Duro-dyne stop clips and spotter pins.

E. Adhesives, coatings and mastics:

1. Lagging adhesive/coating:

a. Foster 30–36.

2. Vapor barrier coating:

a. Foster 30–15.

3. Vapor barrier mastic:

a. Foster 30–35.

F. Pressure sensitive sealing tape:

1. Serving Class 1 jacketed systems:

a. Same material as associated jacketing.

2. Serving Class 2 jacketed systems:

a. 2 mil, smooth aluminum foil.

3.01 INSTALLATION, GENERAL

A. Installation shall be exemplary, EXECUTED IN A FIRST-CLASS MANNER BY SKILLED

WORKERS NORMALLY ENGAGED IN INSULATION WORK.

B. Insulation shall be applied to clean, dry surfaces after the associated distribution systems and equipment have been leak-tested, approved and accepted and shall be continuous through sleeves, wall and ceiling openings, etc.

C. Vapor barrier jacketing shall be applied with a continuous unbroken vapor seal, including points of penetration (anchors, gauges, hangers, sensors, supports, thermometers, etc.).

D. Adhesives, coatings and mastics shall be compatible with the materials to which they are applied and shall not soften, corrode or otherwise attack said materials whether dry or wet.

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 6

E. Hangers, supports and appurtenances shall be installed in their permanent location before insulation is applied and shall be restored to their original position if displacement is necessary to ensure proper insulation installation.

F. Flexible vibration eliminators serving piping systems distributing liquid and gasses below ambient shall be insulated with flexible foamed plastic insulation with circumferential and longitudinal (as applicable) butt joints adhesive sealed.

3.02 INSTALLATION, SPECIFIC

A. Jacketing, installation (unless otherwise noted or specified):

1. Class 1 jacketing:

a. Jacketing shall be factory applied complete with pressure sensitive longitudinal sealing lap (1-1/2 inch width).

b. Circumferential joints shall be sealed with pressure sensitive sealing tape (3-inch width).

c. Longitudinal sealing laps and sealing tape shall be neatly pressed into place (with seams turned “away from view”) and stapled (complete with vapor barrier coating for systems operating below ambient).

2. Class 2 jacketing:

a. Jacketing shall be factory applied.

b. Insulation joints shall be sealed with pressure sensitive sealing tape

(3-inch width for plane joints, 5-inch width for angle joints).

3. Class 3 jacketing:

a. Jacketing shall be neatly sized with lagging adhesive/coating.

b. Additionally, jacketing serving systems operating below ambient shall be complete with vapor barrier coating finish.

c. Jacketing shall be applied with a minimum of circumferential seams and with longitudinal seams turned “away from view”.

d. Jacketing shall be applied to fittings, flanges and valves using template patterns.

4. Class 4 jacketing:

a. Jacketing shall be neatly cemented in place using weld adhesive with longitudinal seams turned “away from view”.

b. All voids shall be neatly sealed with silicone caulking.

B. Insulation installation for PIPING systems:

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 7

1. Piping insulation (fibrous glass):

a. Exposed ends for systems operating below and above ambient shall be neatly sealed with vapor barrier coating and lagging adhesive/coating, respectively.

2. Piping insulation (flexible foamed plastic):

a. Insulation shall be the unslit type whenever feasible (slipped on the piping prior to pipe installation), or the slit type whenever the unslit type is not feasible, with circumferential and longitudinal joints adhesive sealed.

b. Exposed ends of the insulation shall be adhesive sealed (to the piping) to provide a neat finished appearance and prevent moisture infiltration.

3. Fitting, flange and valve insulation (fibrous glass):

a. Insulation shall be the 2-piece, pre-formed (molded) type of the same material and thickness as the adjoining insulation.

b. Insulation applied to valves shall extend up to and include bonnets without interfering with packing glands.

c. Insulation shall be secured in place with No. 14 gauge copper wire with ends turned down into the insulation.

d. Insulation shall butt neatly and firmly against fittings, flanges and valves.

e. Finish:

1) Insulation systems operating ABOVE ambient which are

CONCEALED:

a) Insulation shall be covered with premolded polyvinyl chloride jacketing.

b) Circumferential joints shall be sealed with pressure sensitive tape (3 inch width).

2) Insulation systems operating BELOW ambient that are EXPOSED or CONCEALED and ABOVE ambient that are EXPOSED:

a) Insulation surfaces shall be smoothed out by applying a leveling coat of insulating cement completely covering wiring.

b) After the insulating cement has THOROUGHLY dried, 2 layers of white, open weave, glass cloth with not less than 10 threads per inch in both directions (lapped on itself and the adjoining insulation a minimum of 2 inches) shall be neatly bedded with lagging adhesive coating and vapor barrier

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 8 mastic for systems operating above and below ambient, respectively.

c) Finally, the installation shall be completed by applying Class 3 or class 4 jacketing as schedule.

4. Fitting, flange and valve insulation (flexible foamed plastic):

a. Insulation shall be the same material and thickness as the adjoining insulation.

b. Adhesive shall be the type recommended by the insulation manufacturer.

c. Insulation seams and joints shall be adhesive sealed.

d. Insulation for SWEAT AND BRAZED FITTINGS shall be miter-cut pieces of pipe insulation.

e. Insulation for SCREWED AND WELDED FITTINGS shall be sleeved type covers fabricated from miter-cut pieces of pipe insulation, except screwed fittings 2 inches and larger which may be cut from flexible foamed plastic sheets using template patterns.

f. Insulation for VALVES shall be sleeved type covers fabricated from miter-cut pieces of pipe insulation, except large valves which shall be insulated with covers cut from flexible foamed plastic sheets using template patterns.

C. Insulation installation for EQUIPMENT distributing or storing liquids and gases at temperatures BELOW ambient (flexible foamed plastic; curved, irregular and flat surfaces):

1. General requirements:

a. Metal protrusions in direct contact with the insulated equipment shall be covered with a thickness equal to that specified for the associated equipment.

2. Specific requirements:

a. Insulation shall be the sheet type installed with the smooth skin out.

b. With butt edges slightly lapped, insulation shall be secured in place by applying adhesive to both the equipment surface and the inside insulation surface and thereafter pressing the insulation into place when the adhesive has dried to a tacky state.

c. With adjoining sheets firmly in place, butt edges shall be spread apart and adhesive applied to both edges which shall then be firmly pressed back together and aligned.

ULDF 220304AE – C & D Bays SECTION 22 57 60 - 9

d. Joints shall be staggered according to the aspect ratio of the equipment (vertical joints when height exceeds width and horizontal joints when width exceeds height) and when applied in multi-layers.

D. Insulation installation for EQUIPMENT distributing or storing liquids and gases at temperatures ABOVE ambient (fibrous glass):

1. General requirements:

a. Insulation applied to vertical surfaces shall be complete with properly installed supports 12 feet on center.

b. Insulation supports, stiffeners and other metal protrusions in direct contact with the insulated equipment shall be covered with insulation of a thickness equal to that specified for the associated equipment.

c. Equipment manholes, hand holes, access plates, ASME stamp, nameplate, etc. shall not be insulated, with the adjacent insulation neatly beveled.

2. Specific requirements:

a. Curved and irregular surfaces:

1) Insulation shall be beveled or scored to suit the equipment contours; voids shall be filled and butting edges shall be sealed with insulating cement.

2) Insulation shall be secured in place with No. 14 gauge copper wire

(6 inches on center) or galvanized steel bands (10 inches on center).

3) Finish:

a) Insulation surfaces shall be smoothed…