Addendum 2.pdf
PDF 3 MB Posted
- Attached to
- Shineman Hall steam and Condensate Pipe Repair
- Solicitation number
- 2138023
- Issued by
- Oneida County, New York
About this file
This Addendum 2 document amends the contract specifications for SUNY Oswego's Shineman Hall Steam and Condensate Pipe Repair project (Project 081026RM). The project involves furnishing all materials and performing repair work on steam and condensate piping located outside Shineman Hall on the SUNY Oswego campus in Oswego, New York. The addendum revises the bid submission deadline from September 1, 2026, to Wednesday, September 9, 2026, at 2:00 p.m. EST. The document includes Request for Information (RFI) responses clarifying project specifications, additional marked-up drawings delineating the excavation area, and an updated bid response form. Key clarifications address the existing piping system specifications: 6-inch schedule 80 steam pipe and 4-inch schedule 80 condensate pipe, both insulated with 2-inch thick ASTM C552 cellular glass with 24-gauge galvanized steel jackets. The addendum also specifies that contractors must field-verify existing anchor blocks, with requirements to either preserve existing blocks if they allow adequate weld access or design replacement blocks meeting minimum thrust-restraint requirements for the piping system. Snow removal equipment specifications are clarified as costing $15,000 per machine with individual weights of approximately 1,072 pounds plus operator weight.
The document incorporates comprehensive HVAC insulation specifications (Section 23 0700) detailing acceptable manufacturers, piping insulation materials including fiberglass, calcium silicate, cellular glass, and flexible unicellular options, and ductwork and equipment insulation requirements. The bid calculation section includes a base bid option assuming an anchor block is present and requires removal, with an alternate unit price deduction option for scenarios where no anchor block is present. All bidders must acknowledge receipt of Addendum 2 with their submitted bids. This is a prevailing wage project subject to New York State prevailing wage requirements, with SUNY Oswego establishing contracting goals of 6 percent for Service-Disabled Veteran-Owned Businesses, 16 percent for Minority-Owned Business Enterprises, and 14 percent for Women-Owned Business Enterprises. Bids must exclude sales tax, as SUNY Oswego is tax-exempt. Evaluation of proposals will be based on lowest cost meeting all specified requirements, with no business enterprise having been awarded an identical or substantially similar contract within the past five years.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| 081026RM Addendum 3.pdf | ||
| IFB Shineman Hall Steam Pipe Repair 081026RM.pdf |
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
State University of New York at Oswego SUNY Oswego Project:
081026RM Shineman Hall Steam And Condensate Pipe Repair
Addendum No.2 Page - 1
Addendum No. 2 Date of Addendum: August 31, 2026 Original Date of Contract Documents: August 11, 2026
Owner State University of New York at Oswego Purchasing Department 402 Culkin Hall Office of Facilities Construction Oswego, NY 13126
This Addendum amends Specifications and/or Addenda for the above titled project, as indicated below, and is hereby incorporated into the Contract Documents as part thereof.
Attached: RFI Responses Additional Drawings Original Specification Sections Updated Bid Response Form
The due date for bids has been changed to Wednesday September 9, 2026 at
Bidders should include the Acknowledgement noted with addendum number and dated with their submitted bid
2:00pm
Q: Are there any NEW or EXISTING Plan View or Profile View drawings available for this project?
A: Attached are the files we have, with the addition of "dig area" mapping out the area we would like the excavation to be limited to, and "HIGHLIGHTED" as a marked up version of attachment 01-3-C0131, just to point out where the steam line is, and then circled to show the area we are concerned with. Nothing else can be found.
Q: Are there any specifications regarding the existing direct-bury piping system and insulation? Is the existing system pre-insulated or field-insulated? Is the existing steam piping Sch40 or Sch80 carbon steel?
A: * Steam Pipe: 6" schedule 80 and insulation shall be 2-inch thick ASTM C552 cellular glass with 24-gauge galvanized steel jacket
* Cond Pipe: 4" schedule 80 and insulation shall be 2-inch thick ASTM C552 cellular glass with 24-gauge galvanized steel jacket
(We cannot confirm if existing system was pre-insulated or field-insulated)
Q: Are there any specifications for the existing anchor block, or for replacement if required, including size, concrete mix, and reinforcement?
A: The presence, condition, and location of any existing anchor block shall be field-verified by the Contractor.
If an anchor block is present and can remain undisturbed while still allowing the required 1–3 feet of weld access beyond the chase, the Contractor shall leave the existing block in place. If no anchor block is present, the Contractor shall proceed without installing one. If a new anchor block is required due to obstruction or inadequate restraint, the Contractor’s qualified engineer shall design the replacement block to meet the minimum thrust-restraint requirements of the 6-inch steam and 4-inch condensate piping system. The intent is to avoid unnecessary disturbance of existing infrastructure while ensuring proper system restraint where required.
Q: Is the snow removal equipment being used over the temporary winter surface $15,000 or 15,000lbs?
A: The snow removal equipment costs $15,000 per machine. The weight of each machine is 1,072 pounds plus the weight of the person on them. There is room for (2) Mammoths (the name of the equipment) to be on the backfilled area, side by side. With people on them, the weight will be pushing 2,500 pounds, but nowhere near 15,000 pounds
DIG AREA
Piez Hall Renovation/Snygg Hall Demolition - Science, Engineering, & Technology State University College at Oswego SUCF Project No. 10340 Revised December 13, 2010 Cannon Design Project No. 003024.05 Addendum No. 2
HVAC INSULATION 23 0700 - 1
SECTION 23 0700 – HVAC INSULATION
PART 1 - GENERAL
1.1 SUMMARY
A. Extent of mechanical insulation required by this section is indicated on drawings and schedules, and by requirements of this section.
B. Types of mechanical insulation specified in this section include the following:
1. Piping System Insulation:
a. Fiberglass.
b. Cellular Glass.
c. Calcium Silicate.
d. Flexible Unicellular.
2. Ductwork System Insulation:
a. Fiberglass.
b. Fire-Rated Duct Insulation.
3. Equipment Insulation:
a. Fiberglass.
b. Calcium Silicate.
c. Flexible Unicellular.
C. Related Sections: The following Sections contain requirements that relate to this Section.
1. Division 23 section "Supports and Anchors" for protection saddles, protection shields, and thermal hanger shields; not work of this section.
2. Division 23 section "Metal Ducts" for duct linings; not work of this section.
3. Division 23 section "Mechanical Identification" for installation of identification devices for piping, ductwork, and equipment; not work of this section.
1.2 SUBMITTALS
A. Refer to Division 23 Section "Basic Mechanical Requirements."
B. Product Data: Submit manufacturer's technical product data and installation instructions for each type of mechanical insulation. Submit schedule showing manufacturer's product number, certifications, k-value, thickness, and furnished accessories for each mechanical system requiring insulation.
HVAC INSULATION 23 0700 - 2
1.3 QUALITY ASSURANCE
A. Installer's Qualifications: Firm with at least five (5) years successful installation experience on projects with mechanical insulations similar to that required for this project.
B. Flame/Smoke Ratings: Provide composite mechanical insulation (insulation, jackets, coverings, sealers, mastic and adhesives) with flame-spread index of 25 or less, and smoke-developed index of 50 or less, as tested by ASTM E 84 (NFPA 255) method.
C. GREENGUARD Certification: Provide fiberglass insulation products that are GREENGUARD certified.
D. Formaldehyde-Free: Provide formaldehyde-free fiberglass insulation in compliance with Environmental Specification 1350.
1.4 DELIVERY, STORAGE, AND HANDLING
A. Refer to Division 23 Section "Basic Mechanical Requirements."
B. Deliver insulation, coverings, cements, adhesives, and coatings to site in containers with manufacturer's stamp or label, affixed showing fire hazard indexes of products.
C. Protect insulation against dirt, water, and chemical and mechanical damage. Do not install damaged or wet insulation; remove from project site.
PART 2 - PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products of one of the following:
1. ArmaCell.
2. Babcock & Wilcox; Insulating Products Div.
3. CertainTeed Manson.
4. Knauf Fiber Glass GmbH.
5. Johns Manville.
6. Owens-Corning Fiberglass Corp.
7. Pittsburgh Corning Corp.
8. Rubatex Corp.
2.2 PIPING INSULATION MATERIALS
A. Fiberglass Piping Insulation: ASTM C 547, Class 1 unless otherwise indicated.
B. Calcium Silicate Piping Insulation: ASTM C 533, Type I.
C. Cellular Glass Piping Insulation: ASTM C 552, Type II, Class 2.
HVAC INSULATION 23 0700 - 3
D. Flexible Unicellular Piping Insulation: ASTM C 534, Type I.
E. Jackets for Piping Insulation: ASTM C 1136, Type I for piping with temperatures below ambient, Type II for piping with temperatures above ambient. Type I may be used for all piping at Installers option.
1. Encase fiberglass and calcium silicate pipe fittings insulation with one-piece premolded PVC fitting covers, fastened as per manufacturer's recommendations.
2. Encase all exposed pipe insulation in occupied rooms with PVC pipe covers.
a. Thickness shall be 30 mil from floor level to 9 feet above finished floor. Otherwise, thickness shall be 20 mil.
b. Bond all PVC seams in occupied rooms with polyco VP adhesive, or equal. Bond adhesive shall conform to ASTM D-2654.
3. Encase exterior piping insulation with aluminum jacket with weather-proof construction.
F. Staples, Bands, Wires, and Cement: As recommended by insulation manufacturer for applications indicated.
G. Adhesives, Sealers, and Protective Finishes: As recommended by insulation manufacturer for applications indicated.
H. Removable/Reusable Insulation Valve Covers: Two piece, silicone impregnated finish, Type E glass fiber insulation. Multiglas Products Co., MULTI COV-R, or approved equal.
2.3 DUCTWORK INSULATION MATERIALS
A. Rigid Fiberglass Ductwork Insulation: ASTM C 612, Class 1, 6 LBS/FT3.
B. Flexible Fiberglass Ductwork Insulation: ASTM C 553, Type I, Class B-4, 1.5 LBS/FT3.
C. Fire Rated Ductwork Insulation. Blanket shall be manufactured from calcia, magnesia, silica chemistry designed to enhance biosolubility, 8 lb/cubic feet, ASTM E84 with flame spread less than 25 and smoke developed rating less than 50.
1. Firemaster Fastwrap XL.
2. Unifrax FyreWrap EZ 1.5 or approved equal for non-grease ducts.
3. Unifrax FyreWrap MAX 2.0 or approved equal for grease ducts. Provide ASTM E-2336 compliant system.
D. Jackets for Ductwork Insulation: Foil-Skrim-Kraft (FSK) ASTM C 1136, Type I for ductwork with temperatures below ambient; Type II for ductwork with temperatures above ambient.
E. Ductwork Insulation Accessories: Provide staples, bands, tape, anchors, corner angles, glues, and similar accessories as recommended by insulation manufacturer for applications indicated.
F. Ductwork Insulation Compounds: Provide cements, adhesives, coatings, sealers, protective finishes and similar compounds as recommended by insulation manufacturer for applications indicated.
HVAC INSULATION 23 0700 - 4
2.4 EQUIPMENT INSULATION MATERIALS
A. Rigid Fiberglass Equipment Insulation: ASTM C 612, Class 2, 6 LBS/FT3.
B. Flexible Fiberglass Equipment Insulation: ASTM C 553, Type II, Class F-1,4.5 LBS/FT3.
C. Calcium Silicate Equipment Insulation: ASTM C 533, Type I, Block.
D. Flexible Unicellular Equipment Insulation: ASTM C 534, Type II.
E. Jacketing Material for Equipment Insulation: Provide pre-sized glass cloth jacketing material, not less than 7.8 ounces per square yard, or aluminum jacket at Installer's option, except as otherwise indicated.
F. Equipment Insulation Compounds: Provide adhesives, cements, sealers, mastic and protective finishes as recommended by insulation manufacturer for applications indicated.
G. Equipment Insulation Accessories: Provide staples, bands, wire, wire netting, tape, corner angles, anchors and stud pins as recommended by insulation manufacturer for applications indicated.
PART 3 - EXECUTION
3.1 INSPECTION
A. Examine areas and conditions under which mechanical insulation is to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to Installer.
3.2 HVAC PIPING SYSTEM INSULATION
A. Insulation Omitted: Omit insulation on hot piping within radiation enclosures or unit cabinets; on cold piping within unit cabinets provided piping is located over drain pan; on unions, flexible connections, and expansion joints.
B. Cold Piping (below 40 deg. F) Application Requirements: Insulate the following sub-freezing HVAC piping systems:
1. Refrigerant suction lines between evaporators and compressors.
2. Insulate each piping system specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 1 inch thick for pipe sizes up to and including 1 inch; 2 inch thick for pipe sizes over 1 inch.
b. Cellular Glass: 1 inch thick for pipe sizes up to and including 1 inch; 2 inch thick for pipe sizes over 1 inch.
c. Flexible Elastomeric: 1 inch thick for pipe sizes up to and including 1 inch (largest size permitted).
HVAC INSULATION 23 0700 - 5
C. Cold Piping (40 degree F to ambient) Application Requirements: Insulate the following cold HVAC piping systems:
1. Fan coil unit, induction unit, A/C unit condensate drain piping.
2. Chemical feed piping.
3. Dual temperature supply and return piping.
4. Heat recovery piping.
5. Insulate each piping system specified above with the following types and thicknesses of insulation:
a. Fiberglass: 1 inch thick for pipe sizes up to 1 inch, 2 inch for pipe sizes 1-1/4 inch and larger.
D. Hot Low Pressure Piping (to 250 deg. F). Above Ground Application Requirements: Insulate the following hot low pressure HVAC piping systems (steam piping up to 15 psi, water piping up to 250 deg. F).
1. HVAC hot water (glycol) supply and return piping.
2. Low pressure steam, condensate and pumped condensate piping.
3. Insulate each piping system specified above with one of the following types and thicknesses of insulation:
a. Fiberglass:
1) Hot Water: 1 inch thick for pipe sizes up to and including 1-1/4 inch, 2 inch thick for pipe 1-1/2 inch up to and including 6 inch, 3 inch for pipes 8 inch and larger.
2) Steam: 1-1/2 inch thick for pipe sizes up to and including 1-1/4 inch, 3 inch thick for pipes 1-1/2 inch and larger.
E. Hot High Pressure Piping (251 deg. F to 350 deg. F) Above Ground Application Requirements:
Insulate the following hot medium pressure HVAC piping (steam piping from 16 to 85 psi, water piping 251 deg. F to 350 deg. F):
1. High pressure steam and condensate piping.
2. Insulate each piping system specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 2 inch thick for pipe sizes up to 1 inch, 2-1/2 inch thick for pipe sizes 1 inch and 1-1/4 inch, 3 inch thick for pipe sizes 1-1/2 inch up to and including 4 inch. 3-1/2 inch thick for pipe sizes 5 inch and larger.
3.3 DUCTWORK SYSTEM INSULATION
A. Insulation Omitted: Do not insulate the following ductwork:
1. Lined ductwork.
2. Exposed ductwork installed within conditioned spaces (excluding mechanical rooms).
HVAC INSULATION 23 0700 - 6
B. Ductwork Application Requirements: Insulate the following ductwork:
1. Outdoor air intake ductwork between air entrance and fan inlet or HVAC unit inlet.
2. HVAC supply ductwork between fan discharge, or HVAC unit discharge, and room terminal outlet.
3. HVAC exhaust ductwork in mechanical equipment rooms.
4. HVAC plenums and unit housings not pre-insulated at factory or lined.
5. Exhaust fan and gravity relief plenums and ductwork 10 feet in all directions below roof.
Insulate each ductwork system specified above with one of the following types and thicknesses of insulation:
a. Rigid Fiberglass: 2 inch thick, for indoor exposed ductwork; 3" thick for exterior ductwork.
b. Flexible Fiberglass: 2 inch thick, application limited to indoor concealed locations.
C. Ductwork penetrating 2-hour fire separation; provide fire rated insulation where indicated and as required to maintain fire rating integrity.
D. Provide mechanical fasteners 18" o.c. for ducts 24" and over. Do not compress insulation with washer.
3.4 EQUIPMENT INSULATION
A. Cold Equipment (Below Ambient Temperature) Application Requirements: Insulate the following cold equipment:
1. Refrigeration equipment, including chillers, tanks and pumps.
2. Drip pans under chilled equipment.
3. Cold and chilled water pumps.
4. Air separators.
5. Expansion tanks
6. Insulate each item of equipment specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 1 inch thick for surfaces above 40 deg. F (2 deg. C) and 1-1/2 inch thick for surfaces 40 deg. F (2 deg. C) and lower.
b. Flexible Unicellular: 1-1/2 inch thick.
B. Hot Equipment (Above Ambient Temperature) Application Requirements: Insulate the following hot equipment:
1. Heat exchangers.
2. Condensate receivers.
3. Air separators.
4. Insulate each item of equipment specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 2 inch thick.
b. Calcium Silicate: 3 inch thick.
HVAC INSULATION 23 0700 - 7
3.5 INSTALLATION OF PIPING INSULATION
A. General: Install insulation products in accordance with manufacturer's written instructions, and in accordance with recognized industry practices to ensure that insulation serves its intended purpose.
B. Install insulation on pipe systems subsequent to installation of heat tracing, painting, testing, and acceptance of tests.
C. Install insulation materials with smooth and even surfaces. Insulate each continuous run of piping with full-length units of insulation, with single cut piece to complete run. Do not use cut pieces or scraps abutting each other.
D. Clean and dry pipe surfaces prior to insulating. Butt insulation joints firmly together to ensure complete and tight fit over surfaces to be covered.
E. Maintain integrity of vapor-barrier jackets on pipe insulation, and protect to prevent puncture or other damage.
F. Cover valves, fittings, air separators and all other piping system components in each piping system with equivalent thickness and composition of insulation as applied to adjoining pipe run.
Install factory molded, precut or job fabricated units (at Installer's option) except where specific form or type is indicated.
G. Extend piping insulation without interruption through walls, floors and similar piping penetrations, except where otherwise indicated.
H. Butt pipe insulation against pipe hanger insulation inserts. For hot pipes, apply 3 inch wide vapor barrier tape or band over the butt joints. For cold piping apply wet coat of vapor barrier lap cement on butt joints and seal joints with 3 inch wide vapor barrier tape or band.
I. Provide removable valve covers for valves which must be accessed periodically.
3.6 INSTALLATION OF DUCTWORK INSULATION
A. General: Install insulation products in accordance with manufacturer's written instructions, and in accordance with recognized industry practices to ensure that insulation serves its intended purpose.
B. Install insulation materials with smooth and even surfaces.
C. Clean and dry ductwork prior to insulating. Butt insulation joints firmly together to ensure complete and tight fit over surfaces to be covered.
D. Maintain integrity of vapor-barrier on ductwork insulation, and protect it to prevent puncture and other damage.
E. Extend ductwork insulation without interruption through walls, floors and similar ductwork penetrations, except where otherwise indicated.
F. Lined Ductwork: Except as otherwise indicated, omit insulation on ductwork where internal insulation or sound absorbing linings have been installed.
HVAC INSULATION 23 0700 - 8
G. Corner Angles: Install corner angles on external corners of insulation on ductwork in exposed finished spaces before covering with jacketing.
H. Fire rated duct insulation: Install per manufacturer's instructions to obtain 2-hour fire resistance rating and associated ASTM/UL rating.
3.7 INSTALLATION OF EQUIPMENT INSULATION
A. General: Install equipment thermal insulation products in accordance with manufacturer's written instructions, and in compliance with recognized industry practices to ensure that insulation serves intended purpose.
B. Install insulation materials with smooth and even surfaces and on clean and dry surfaces. Redo poorly fitted joints. Do not use mastic or joint sealer as filler for gaping joints and excessive voids resulting from poor workmanship.
C. Maintain integrity of vapor-barrier on equipment insulation and protect it to prevent puncture and other damage.
D. Do not apply insulation to equipment, breechings, or stacks while hot.
E. Apply insulation using staggered joint method for both single and double layer construction, where feasible. Apply each layer of insulation separately.
F. Coat insulated surfaces with layer of insulating cement, trawled in workmanlike manner, leaving smooth continuous surface. Fill in scored block, seams, chipped edges and depressions, and cover over wire netting and joints with cement of sufficient thickness to remove surface irregularities.
G. Cover insulated surfaces with all-service jacketing neatly fitted and firmly secured. Lap seams at least 2 inch. Apply over vapor barrier where applicable.
H. Provide removable insulation sections to cover parts of equipment which must be opened periodically for maintenance; include metal vessel covers, fasteners, flanges, frames, accessories and pumps.
3.8 OUTDOOR INSULATION FINISH
A. General: Piping, ductwork and equipment exposed to weather shall have insulation protective finish or jacketing installed as recommended by manufacturer.
B. Piping: Shall have Venture Clad 1579CW tape fittings, valves, flanges, etc. shall have factory or job fabricated aluminum cover secured with banding and/or screws.
C. Piping: Shall have a 0.020 inch minimum thickness PVC jacket with moisture barrier with locking longitudinal seam and butt straps. Fittings, valves, flanges, etc., shall have factory or job fabricated PVC cover secured with banking and/or screws.
D. Round ductwork: Same finish as piping.
E. Rectangular ductwork and equipment: Shall have white Venture Clad 1579CW tape.
HVAC INSULATION 23 0700 - 9
3.9 PROTECTION AND REPLACEMENT
A. Replace damaged insulation which cannot be repaired satisfactorily, including units with vapor barrier damage and moisture saturated units.
B. Protection: Insulation Installer shall advise Contractor of required protection for insulation work during remainder of construction period, to avoid damage and deterioration.
END OF SECTION 23 0700
NAME OF BIDDER
ADDRESS OF BIDDER
EMAIL ADDRESS OF BIDDER
PROPOSAL FOR
Project Number: 081026RM Date: 9/9/26 Project Name: Shineman Hall Steam and Condensate Piping Repair
5. BID CALCULATION
a. BASE BID (*assumes anchor black is present and will need to be removed)
(in numbers)
(in words)
b. Uniy Price: In accordance with Section B of the General Requirements the bidder proposes the following additions to or deductions from the Total Bid for the alternates listed below:
Unit Price Number Deduct Amount in Words Amount in
Figures
1-No Anchor Block Present
The bidder acknowledges the receipt of the following addenda, but agrees that it is bound by all addenda whether or not listed herein.
Addendum Number Date Addendum Number Date
State University of New York at Oswego SUNY Oswego Project:
081026RM Shineman Hall Steam And Condensate Pipe Repair
Addendum No.2 Page - 1
Addendum No. 2 Date of Addendum: August 31, 2026 Original Date of Contract Documents: August 11, 2026
Owner State University of New York at Oswego Purchasing Department 402 Culkin Hall Office of Facilities Construction Oswego, NY 13126
This Addendum amends Specifications and/or Addenda for the above titled project, as indicated below, and is hereby incorporated into the Contract Documents as part thereof.
Attached: RFI Responses Additional Drawings Original Specification Sections Updated Bid Response Form
The due date for bids has been changed to Wednesday September 9, 2026 at
Bidders should include the Acknowledgement noted with addendum number and dated with their submitted bid
2:00pm
Q: Are there any NEW or EXISTING Plan View or Profile View drawings available for this project?
A: Attached are the files we have, with the addition of "dig area" mapping out the area we would like the excavation to be limited to, and "HIGHLIGHTED" as a marked up version of attachment 01-3-C0131, just to point out where the steam line is, and then circled to show the area we are concerned with. Nothing else can be found.
Q: Are there any specifications regarding the existing direct-bury piping system and insulation? Is the existing system pre-insulated or field-insulated? Is the existing steam piping Sch40 or Sch80 carbon steel?
A: * Steam Pipe: 6" schedule 80 and insulation shall be 2-inch thick ASTM C552 cellular glass with 24-gauge galvanized steel jacket
* Cond Pipe: 4" schedule 80 and insulation shall be 2-inch thick ASTM C552 cellular glass with 24-gauge galvanized steel jacket
(We cannot confirm if existing system was pre-insulated or field-insulated)
Q: Are there any specifications for the existing anchor block, or for replacement if required, including size, concrete mix, and reinforcement?
A: The presence, condition, and location of any existing anchor block shall be field-verified by the Contractor.
If an anchor block is present and can remain undisturbed while still allowing the required 1–3 feet of weld access beyond the chase, the Contractor shall leave the existing block in place. If no anchor block is present, the Contractor shall proceed without installing one. If a new anchor block is required due to obstruction or inadequate restraint, the Contractor’s qualified engineer shall design the replacement block to meet the minimum thrust-restraint requirements of the 6-inch steam and 4-inch condensate piping system. The intent is to avoid unnecessary disturbance of existing infrastructure while ensuring proper system restraint where required.
Q: Is the snow removal equipment being used over the temporary winter surface $15,000 or 15,000lbs?
A: The snow removal equipment costs $15,000 per machine. The weight of each machine is 1,072 pounds plus the weight of the person on them. There is room for (2) Mammoths (the name of the equipment) to be on the backfilled area, side by side. With people on them, the weight will be pushing 2,500 pounds, but nowhere near 15,000 pounds
HVAC INSULATION 23 0700 - 1
SECTION 23 0700 – HVAC INSULATION
PART 1 - GENERAL
1.1 SUMMARY
A. Extent of mechanical insulation required by this section is indicated on drawings and schedules, and by requirements of this section.
B. Types of mechanical insulation specified in this section include the following:
1. Piping System Insulation:
a. Fiberglass.
b. Cellular Glass.
c. Calcium Silicate.
d. Flexible Unicellular.
2. Ductwork System Insulation:
a. Fiberglass.
b. Fire-Rated Duct Insulation.
3. Equipment Insulation:
a. Fiberglass.
b. Calcium Silicate.
c. Flexible Unicellular.
C. Related Sections: The following Sections contain requirements that relate to this Section.
1. Division 23 section "Supports and Anchors" for protection saddles, protection shields, and thermal hanger shields; not work of this section.
2. Division 23 section "Metal Ducts" for duct linings; not work of this section.
3. Division 23 section "Mechanical Identification" for installation of identification devices for piping, ductwork, and equipment; not work of this section.
1.2 SUBMITTALS
A. Refer to Division 23 Section "Basic Mechanical Requirements."
B. Product Data: Submit manufacturer's technical product data and installation instructions for each type of mechanical insulation. Submit schedule showing manufacturer's product number, certifications, k-value, thickness, and furnished accessories for each mechanical system requiring insulation.
HVAC INSULATION 23 0700 - 2
1.3 QUALITY ASSURANCE
A. Installer's Qualifications: Firm with at least five (5) years successful installation experience on projects with mechanical insulations similar to that required for this project.
B. Flame/Smoke Ratings: Provide composite mechanical insulation (insulation, jackets, coverings, sealers, mastic and adhesives) with flame-spread index of 25 or less, and smoke-developed index of 50 or less, as tested by ASTM E 84 (NFPA 255) method.
C. GREENGUARD Certification: Provide fiberglass insulation products that are GREENGUARD certified.
D. Formaldehyde-Free: Provide formaldehyde-free fiberglass insulation in compliance with Environmental Specification 1350.
1.4 DELIVERY, STORAGE, AND HANDLING
A. Refer to Division 23 Section "Basic Mechanical Requirements."
B. Deliver insulation, coverings, cements, adhesives, and coatings to site in containers with manufacturer's stamp or label, affixed showing fire hazard indexes of products.
C. Protect insulation against dirt, water, and chemical and mechanical damage. Do not install damaged or wet insulation; remove from project site.
PART 2 - PRODUCTS
2.1 ACCEPTABLE MANUFACTURERS
A. Manufacturers: Subject to compliance with requirements, provide products of one of the following:
1. ArmaCell.
2. Babcock & Wilcox; Insulating Products Div.
3. CertainTeed Manson.
4. Knauf Fiber Glass GmbH.
5. Johns Manville.
6. Owens-Corning Fiberglass Corp.
7. Pittsburgh Corning Corp.
8. Rubatex Corp.
2.2 PIPING INSULATION MATERIALS
A. Fiberglass Piping Insulation: ASTM C 547, Class 1 unless otherwise indicated.
B. Calcium Silicate Piping Insulation: ASTM C 533, Type I.
C. Cellular Glass Piping Insulation: ASTM C 552, Type II, Class 2.
HVAC INSULATION 23 0700 - 3
D. Flexible Unicellular Piping Insulation: ASTM C 534, Type I.
E. Jackets for Piping Insulation: ASTM C 1136, Type I for piping with temperatures below ambient, Type II for piping with temperatures above ambient. Type I may be used for all piping at Installers option.
1. Encase fiberglass and calcium silicate pipe fittings insulation with one-piece premolded PVC fitting covers, fastened as per manufacturer's recommendations.
2. Encase all exposed pipe insulation in occupied rooms with PVC pipe covers.
a. Thickness shall be 30 mil from floor level to 9 feet above finished floor. Otherwise, thickness shall be 20 mil.
b. Bond all PVC seams in occupied rooms with polyco VP adhesive, or equal. Bond adhesive shall conform to ASTM D-2654.
3. Encase exterior piping insulation with aluminum jacket with weather-proof construction.
F. Staples, Bands, Wires, and Cement: As recommended by insulation manufacturer for applications indicated.
G. Adhesives, Sealers, and Protective Finishes: As recommended by insulation manufacturer for applications indicated.
H. Removable/Reusable Insulation Valve Covers: Two piece, silicone impregnated finish, Type E glass fiber insulation. Multiglas Products Co., MULTI COV-R, or approved equal.
2.3 DUCTWORK INSULATION MATERIALS
A. Rigid Fiberglass Ductwork Insulation: ASTM C 612, Class 1, 6 LBS/FT3.
B. Flexible Fiberglass Ductwork Insulation: ASTM C 553, Type I, Class B-4, 1.5 LBS/FT3.
C. Fire Rated Ductwork Insulation. Blanket shall be manufactured from calcia, magnesia, silica chemistry designed to enhance biosolubility, 8 lb/cubic feet, ASTM E84 with flame spread less than 25 and smoke developed rating less than 50.
1. Firemaster Fastwrap XL.
2. Unifrax FyreWrap EZ 1.5 or approved equal for non-grease ducts.
3. Unifrax FyreWrap MAX 2.0 or approved equal for grease ducts. Provide ASTM E-2336 compliant system.
D. Jackets for Ductwork Insulation: Foil-Skrim-Kraft (FSK) ASTM C 1136, Type I for ductwork with temperatures below ambient; Type II for ductwork with temperatures above ambient.
E. Ductwork Insulation Accessories: Provide staples, bands, tape, anchors, corner angles, glues, and similar accessories as recommended by insulation manufacturer for applications indicated.
F. Ductwork Insulation Compounds: Provide cements, adhesives, coatings, sealers, protective finishes and similar compounds as recommended by insulation manufacturer for applications indicated.
HVAC INSULATION 23 0700 - 4
2.4 EQUIPMENT INSULATION MATERIALS
A. Rigid Fiberglass Equipment Insulation: ASTM C 612, Class 2, 6 LBS/FT3.
B. Flexible Fiberglass Equipment Insulation: ASTM C 553, Type II, Class F-1,4.5 LBS/FT3.
C. Calcium Silicate Equipment Insulation: ASTM C 533, Type I, Block.
D. Flexible Unicellular Equipment Insulation: ASTM C 534, Type II.
E. Jacketing Material for Equipment Insulation: Provide pre-sized glass cloth jacketing material, not less than 7.8 ounces per square yard, or aluminum jacket at Installer's option, except as otherwise indicated.
F. Equipment Insulation Compounds: Provide adhesives, cements, sealers, mastic and protective finishes as recommended by insulation manufacturer for applications indicated.
G. Equipment Insulation Accessories: Provide staples, bands, wire, wire netting, tape, corner angles, anchors and stud pins as recommended by insulation manufacturer for applications indicated.
PART 3 - EXECUTION
3.1 INSPECTION
A. Examine areas and conditions under which mechanical insulation is to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to Installer.
3.2 HVAC PIPING SYSTEM INSULATION
A. Insulation Omitted: Omit insulation on hot piping within radiation enclosures or unit cabinets; on cold piping within unit cabinets provided piping is located over drain pan; on unions, flexible connections, and expansion joints.
B. Cold Piping (below 40 deg. F) Application Requirements: Insulate the following sub-freezing HVAC piping systems:
1. Refrigerant suction lines between evaporators and compressors.
2. Insulate each piping system specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 1 inch thick for pipe sizes up to and including 1 inch; 2 inch thick for pipe sizes over 1 inch.
b. Cellular Glass: 1 inch thick for pipe sizes up to and including 1 inch; 2 inch thick for pipe sizes over 1 inch.
c. Flexible Elastomeric: 1 inch thick for pipe sizes up to and including 1 inch (largest size permitted).
HVAC INSULATION 23 0700 - 5
C. Cold Piping (40 degree F to ambient) Application Requirements: Insulate the following cold HVAC piping systems:
1. Fan coil unit, induction unit, A/C unit condensate drain piping.
2. Chemical feed piping.
3. Dual temperature supply and return piping.
4. Heat recovery piping.
5. Insulate each piping system specified above with the following types and thicknesses of insulation:
a. Fiberglass: 1 inch thick for pipe sizes up to 1 inch, 2 inch for pipe sizes 1-1/4 inch and larger.
D. Hot Low Pressure Piping (to 250 deg. F). Above Ground Application Requirements: Insulate the following hot low pressure HVAC piping systems (steam piping up to 15 psi, water piping up to 250 deg. F).
1. HVAC hot water (glycol) supply and return piping.
2. Low pressure steam, condensate and pumped condensate piping.
3. Insulate each piping system specified above with one of the following types and thicknesses of insulation:
a. Fiberglass:
1) Hot Water: 1 inch thick for pipe sizes up to and including 1-1/4 inch, 2 inch thick for pipe 1-1/2 inch up to and including 6 inch, 3 inch for pipes 8 inch and larger.
2) Steam: 1-1/2 inch thick for pipe sizes up to and including 1-1/4 inch, 3 inch thick for pipes 1-1/2 inch and larger.
E. Hot High Pressure Piping (251 deg. F to 350 deg. F) Above Ground Application Requirements:
Insulate the following hot medium pressure HVAC piping (steam piping from 16 to 85 psi, water piping 251 deg. F to 350 deg. F):
1. High pressure steam and condensate piping.
2. Insulate each piping system specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 2 inch thick for pipe sizes up to 1 inch, 2-1/2 inch thick for pipe sizes 1 inch and 1-1/4 inch, 3 inch thick for pipe sizes 1-1/2 inch up to and including 4 inch. 3-1/2 inch thick for pipe sizes 5 inch and larger.
3.3 DUCTWORK SYSTEM INSULATION
A. Insulation Omitted: Do not insulate the following ductwork:
1. Lined ductwork.
2. Exposed ductwork installed within conditioned spaces (excluding mechanical rooms).
HVAC INSULATION 23 0700 - 6
B. Ductwork Application Requirements: Insulate the following ductwork:
1. Outdoor air intake ductwork between air entrance and fan inlet or HVAC unit inlet.
2. HVAC supply ductwork between fan discharge, or HVAC unit discharge, and room terminal outlet.
3. HVAC exhaust ductwork in mechanical equipment rooms.
4. HVAC plenums and unit housings not pre-insulated at factory or lined.
5. Exhaust fan and gravity relief plenums and ductwork 10 feet in all directions below roof.
Insulate each ductwork system specified above with one of the following types and thicknesses of insulation:
a. Rigid Fiberglass: 2 inch thick, for indoor exposed ductwork; 3" thick for exterior ductwork.
b. Flexible Fiberglass: 2 inch thick, application limited to indoor concealed locations.
C. Ductwork penetrating 2-hour fire separation; provide fire rated insulation where indicated and as required to maintain fire rating integrity.
D. Provide mechanical fasteners 18" o.c. for ducts 24" and over. Do not compress insulation with washer.
3.4 EQUIPMENT INSULATION
A. Cold Equipment (Below Ambient Temperature) Application Requirements: Insulate the following cold equipment:
1. Refrigeration equipment, including chillers, tanks and pumps.
2. Drip pans under chilled equipment.
3. Cold and chilled water pumps.
4. Air separators.
5. Expansion tanks
6. Insulate each item of equipment specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 1 inch thick for surfaces above 40 deg. F (2 deg. C) and 1-1/2 inch thick for surfaces 40 deg. F (2 deg. C) and lower.
b. Flexible Unicellular: 1-1/2 inch thick.
B. Hot Equipment (Above Ambient Temperature) Application Requirements: Insulate the following hot equipment:
1. Heat exchangers.
2. Condensate receivers.
3. Air separators.
4. Insulate each item of equipment specified above with one of the following types and thicknesses of insulation:
a. Fiberglass: 2 inch thick.
b. Calcium Silicate: 3 inch thick.
HVAC INSULATION 23 0700 - 7
3.5 INSTALLATION OF PIPING INSULATION
A. General: Install insulation products in accordance with manufacturer's written instructions, and in accordance with recognized industry practices to ensure that insulation serves its intended purpose.
B. Install insulation on pipe systems subsequent to installation of heat tracing, painting, testing, and acceptance of tests.
C. Install insulation materials with smooth and even surfaces. Insulate each continuous run of piping with full-length units of insulation, with single cut piece to complete run. Do not use cut pieces or scraps abutting each other.
D. Clean and dry pipe surfaces prior to insulating. Butt insulation joints firmly together to ensure complete and tight fit over surfaces to be covered.
E. Maintain integrity of vapor-barrier jackets on pipe insulation, and protect to prevent puncture or other damage.
F. Cover valves, fittings, air separators and all other piping system components in each piping system with equivalent thickness and composition of insulation as applied to adjoining pipe run.
Install factory molded, precut or job fabricated units (at Installer's option) except where specific form or type is indicated.
G. Extend piping insulation without interruption through walls, floors and similar piping penetrations, except where otherwise indicated.
H. Butt pipe insulation against pipe hanger insulation inserts. For hot pipes, apply 3 inch wide vapor barrier tape or band over the butt joints. For cold piping apply wet coat of vapor barrier lap cement on butt joints and seal joints with 3 inch wide vapor barrier tape or band.
I. Provide removable valve covers for valves which must be accessed periodically.
3.6 INSTALLATION OF DUCTWORK INSULATION
A. General: Install insulation products in accordance with manufacturer's written instructions, and in accordance with recognized industry practices to ensure that insulation serves its intended purpose.
B. Install insulation materials with smooth and even surfaces.
C. Clean and dry ductwork prior to insulating. Butt insulation joints firmly together to ensure complete and tight fit over surfaces to be covered.
D. Maintain integrity of vapor-barrier on ductwork insulation, and protect it to prevent puncture and other damage.
E. Extend ductwork insulation without interruption through walls, floors and similar ductwork penetrations, except where otherwise indicated.
F. Lined Ductwork: Except as otherwise indicated, omit insulation on ductwork where internal insulation or sound absorbing linings have been installed.
HVAC INSULATION 23 0700 - 8
G. Corner Angles: Install corner angles on external corners of insulation on ductwork in exposed finished spaces before covering with jacketing.
H. Fire rated duct insulation: Install per manufacturer's instructions to obtain 2-hour fire resistance rating and associated ASTM/UL rating.
3.7 INSTALLATION OF EQUIPMENT INSULATION
A. General: Install equipment thermal insulation products in accordance with manufacturer's written instructions, and in compliance with recognized industry practices to ensure that insulation serves intended purpose.
B. Install insulation materials with smooth and even surfaces and on clean and dry surfaces. Redo poorly fitted joints. Do not use mastic or joint sealer as filler for gaping joints and excessive voids resulting from poor workmanship.
C. Maintain integrity of vapor-barrier on equipment insulation and protect it to prevent puncture and other damage.
D. Do not apply insulation to equipment, breechings, or stacks while hot.
E. Apply insulation using staggered joint method for both single and double layer construction, where feasible. Apply each layer of insulation separately.
F. Coat insulated surfaces with layer of insulating cement, trawled in workmanlike manner, leaving smooth continuous surface. Fill in scored block, seams, chipped edges and depressions, and cover over wire netting and joints with cement of sufficient thickness to remove surface irregularities.
G. Cover insulated surfaces with all-service jacketing neatly fitted and firmly secured. Lap seams at least 2 inch. Apply over vapor barrier where applicable.
H. Provide removable insulation sections to cover parts of equipment which must be opened periodically for maintenance; include metal vessel covers, fasteners, flanges, frames, accessories and pumps.
3.8 OUTDOOR INSULATION FINISH
A. General: Piping, ductwork and equipment exposed to weather shall have insulation protective finish or jacketing installed as recommended by manufacturer.
B. Piping: Shall have Venture Clad 1579CW tape fittings, valves, flanges, etc. shall have factory or job fabricated aluminum cover secured with banding and/or screws.
C. Piping: Shall have a 0.020 inch minimum thickness PVC jacket with moisture barrier with locking longitudinal seam and butt straps. Fittings, valves, flanges, etc., shall have factory or job fabricated PVC cover secured with banking and/or screws.
D. Round ductwork: Same finish as piping.
E. Rectangular ductwork and equipment: Shall have white Venture Clad 1579CW tape.
HVAC INSULATION 23 0700 - 9
3.9 PROTECTION AND REPLACEMENT
A. Replace damaged insulation which cannot be repaired satisfactorily, including units with vapor barrier damage and moisture saturated units.
B. Protection: Insulation Installer shall advise Contractor of required protection for insulation work during remainder of construction period, to avoid damage and deterioration.
END OF SECTION 23 0700
NAME OF BIDDER
ADDRESS OF BIDDER
EMAIL ADDRESS OF BIDDER
PROPOSAL FOR
Project Number: 081026RM Date: 9/9/26 Project Name: Shineman Hall Steam and Condensate Piping Repair
5. BID CALCULATION
a. BASE BID (*assumes anchor black is present and will need to be removed)
(in numbers)
(in words)
b. Uniy Price: In accordance with Section B of the General Requirements the bidder proposes the following additions to or deductions from the Total Bid for the alternates listed below:
Unit Price Number Deduct Amount in Words Amount in
Figures
1-No Anchor Block Present
The bidder acknowledges the receipt of the following addenda, but agrees that it is bound by all addenda whether or not listed herein.
Addendum Number Date Addendum Number Date
| Addendum No.1.pdf |
| RFI Response.pdf |
| HIGHLIGHTED.pdf |
| DIG area.pdf |
| 23 0700 HVAC Insulation Addendum 2.pdf |
| PART 1 - GENERAL |
| 1.1 SUMMARY |
| A. Extent of mechanical insulation required by this section is indicated on drawings and schedules, and by requirements of this section. |
| B. Types of mechanical insulation specified in this section include the following: |
| 1. Piping System Insulation: |
| a. Fiberglass. |
| b. Cellular Glass. |
| c. Calcium Silicate. |
| d. Flexible Unicellular. |
| 2. Ductwork System Insulation: |
| a. Fiberglass. |
| b. Fire-Rated Duct Insulation. |
| 3. Equipment Insulation: |
| a. Fiberglass. |
| b. Calcium Silicate. |
| c. Flexible Unicellular. |
| C. Related Sections: The following Sections contain requirements that relate to this Section. |
| 1. Division 23 section "Supports and Anchors" for protection saddles, protection shields, and thermal hanger shields; not work of this section. |
| 2. Division 23 section "Metal Ducts" for duct linings; not work of this section. |
| 3. Division 23 section "Mechanical Identification" for installation of identification devices for piping, ductwork, and equipment; not work of this section. |
| 1.2 SUBMITTALS |
| A. Refer to Division 23 Section "Basic Mechanical Requirements." |
| B. Product Data: Submit manufacturer's technical product data and installation instructions for each type of mechanical insulation. Submit schedule showing manufacturer's product number, certifications, k-value, thickness, and furnished accessories f... |
| 1.3 QUALITY ASSURANCE |
| A. Installer's Qualifications: Firm with at least five (5) years successful installation experience on projects with mechanical insulations similar to that required for this project. |
| B. Flame/Smoke Ratings: Provide composite mechanical insulation (insulation, jackets, coverings, sealers, mastic and adhesives) with flame-spread index of 25 or less, and smoke-developed index of 50 or less, as tested by ASTM E 84 (NFPA 255) method. |
| C. GREENGUARD Certification: Provide fiberglass insulation products that are GREENGUARD certified. |
| D. Formaldehyde-Free: Provide formaldehyde-free fiberglass insulation in compliance with Environmental Specification 1350. |
| 1.4 DELIVERY, STORAGE, AND HANDLING |
| A. Refer to Division 23 Section "Basic Mechanical Requirements." |
| B. Deliver insulation, coverings, cements, adhesives, and coatings to site in containers with manufacturer's stamp or label, affixed showing fire hazard indexes of products. |
| C. Protect insulation against dirt, water, and chemical and mechanical damage. Do not install damaged or wet insulation; remove from project site. |
| PART 2 - PRODUCTS |
| 2.1 ACCEPTABLE MANUFACTURERS |
| A. Manufacturers: Subject to compliance with requirements, provide products of one of the following: |
| 1. ArmaCell. |
| 2. Babcock & Wilcox; Insulating Products Div. |
| 3. CertainTeed Manson. |
| 4. Knauf Fiber Glass GmbH. |
| 5. Johns Manville. |
| 6. Owens-Corning Fiberglass Corp. |
| 7. Pittsburgh Corning Corp. |
| 8. Rubatex Corp. |
| 2.2 PIPING INSULATION MATERIALS |
| A. Fiberglass Piping Insulation: ASTM C 547, Class 1 unless otherwise indicated. |
| B. Calcium Silicate Piping Insulation: ASTM C 533, Type I. |
| C. Cellular Glass Piping Insulation: ASTM C 552, Type II, Class 2. |
| D. Flexible Unicellular Piping Insulation: ASTM C 534, Type I. |
| E. Jackets for Piping Insulation: ASTM C 1136, Type I for piping with temperatures below ambient, Type II for piping with temperatures above ambient. Type I may be used for all piping at Installers option. |
| 1. Encase fiberglass and calcium silicate pipe fittings insulation with one-piece premolded PVC fitting covers, fastened as per manufacturer's recommendations. |
| 2. Encase all exposed pipe insulation in occupied rooms with PVC pipe covers. |
| a. Thickness shall be 30 mil from floor level to 9 feet above finished floor. Otherwise, thickness shall be 20 mil. |
| b. Bond all PVC seams in occupied rooms with polyco VP adhesive, or equal. Bond adhesive shall conform to ASTM D-2654. |
3. Encase exterior piping insulation with aluminum jacket with weather-proof construction.
| F. Staples, Bands, Wires, and Cement: As recommended by insulation manufacturer for applications indicated. |
| G. Adhesives, Sealers, and Protective Finishes: As recommended by insulation manufacturer for applications indicated. |
| H. Removable/Reusable Insulation Valve Covers: Two piece, silicone impregnated finish, Type E glass fiber insulation. Multiglas Products Co., MULTI COV-R, or approved equal. |
| 2.3 DUCTWORK INSULATION MATERIALS |
| A. Rigid Fiberglass Ductwork Insulation: ASTM C 612, Class 1, 6 LBS/FT3. |
| B. Flexible Fiberglass Ductwork Insulation: ASTM C 553, Type I, Class B-4, 1.5 LBS/FT3. |
| C. Fire Rated Ductwork Insulation. Blanket shall be manufactured from calcia, magnesia, silica chemistry designed to enhance biosolubility, 8 lb/cubic feet, ASTM E84 with flame spread less than 25 and smoke developed rating less than 50. |
| 1. Firemaster Fastwrap XL. |
| D. Jackets for Ductwork Insulation: Foil-Skrim-Kraft (FSK) ASTM C 1136, Type I for ductwork with temperatures below ambient; Type II for ductwork with temperatures above ambient. |
| E. Ductwork Insulation Accessories: Provide staples, bands, tape, anchors, corner angles, glues, and similar accessories as recommended by insulation manufacturer for applications indicated. |
| F. Ductwork Insulation Compounds: Provide cements, adhesives, coatings, sealers, protective finishes and similar compounds as recommended by insulation manufacturer for applications indicated. |
| 2.4 EQUIPMENT INSULATION MATERIALS |
| A. Rigid Fiberglass Equipment Insulation: ASTM C 612, Class 2, 6 LBS/FT3. |
| B. Flexible Fiberglass Equipment Insulation: ASTM C 553, Type II, Class F-1,4.5 LBS/FT3. |
| C. Calcium Silicate Equipment Insulation: ASTM C 533, Type I, Block. |
| D. Flexible Unicellular Equipment Insulation: ASTM C 534, Type II. |
| E. Jacketing Material for Equipment Insulation: Provide pre-sized glass cloth jacketing material, not less than 7.8 ounces per square yard, or aluminum jacket at Installer's option, except as otherwise indicated. |
| F. Equipment Insulation Compounds: Provide adhesives, cements, sealers, mastic and protective finishes as recommended by insulation manufacturer for applications indicated. |
| G. Equipment Insulation Accessories: Provide staples, bands, wire, wire netting, tape, corner angles, anchors and stud pins as recommended by insulation manufacturer for applications indicated. |
| PART 3 - EXECUTION |
| 3.1 INSPECTION |
| A. Examine areas and conditions under which mechanical insulation is to be installed. Do not proceed with work until unsatisfactory conditions have been corrected in manner acceptable to Installer. |
| 3.2 HVAC PIPING SYSTEM INSULATION |
| A. Insulation Omitted: Omit insulation on hot piping within radiation enclosures or unit cabinets; on cold piping within unit cabinets provided piping is located over drain pan; on unions, flexible connections, and expansion joints. |
| B. Cold Piping (below 40 deg. F) Application Requirements: Insulate the following sub-freezing HVAC piping systems: |
| 1. Refrigerant suction lines between evaporators and compressors. |
| 2. Insulate each piping system specified above with one of the following types and thicknesses of insulation: |
| a. Fiberglass: 1 inch thick for pipe sizes up to and including 1 inch; 2 inch thick for pipe sizes over 1 inch. |
| c. Flexible Elastomeric: 1 inch thick for pipe sizes up to and including 1 inch (largest size permitted). |
| C. Cold Piping (40 degree F to ambient) Application Requirements: Insulate the following cold HVAC piping systems: |
| 1. Fan coil unit, induction unit, A/C unit condensate drain piping. |
| 2. Chemical feed piping. |
| 3. Dual temperature supply and return piping. |
| 4. Heat recovery piping. |
| 5. Insulate each piping system specified above with the following types and thicknesses of insulation: |
| a. Fiberglass: 1 inch thick for pipe sizes up to 1 inch, 2 inch for pipe sizes 1-1/4 inch and larger. |
| D. Hot Low Pressure Piping (to 250 deg. F). Above Ground Application Requirements: Insulate the following hot low pressure HVAC piping systems (steam piping up to 15 psi, water piping up to 250 deg. F). |
This is the start of the file's text. The full file is on GovTribe.
File details come from the government source that posted it. Updated .