NAB_technical_amendment_items_11.18.2016.docx
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- Training Support Facility, Fort Lee, VA Federal contract opportunity
- Solicitation number
- W91236-17-R-0002
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Training Support Facility Items for NAB’s 2nd technical amendment 11/18/2016
SPECIFICATIONS:
Section 10 56 26 MOBILE STORAGE SHELVING UNITS, paragraph 1.11:
Replace this paragraph of text:
“Provide written warranties, executed by Manufacturer, Contractor, and Installer, agreeing to repair or replace units that fail in materials or workmanship within the specified warranty period. Warrant coverage to include parts, equipment, and labor for repairs necessary to attain specified requirements. Warranty shall be in addition to, and not a limitation of, rights the Owner may have against Contractor under Contract Documents. Warranty duration shall begin on the date of acceptance by Contracting Officer (Government). Provide warranty for each system installed in specified locations.”
With this paragraph of text:
“Provide written warranties, executed by Manufacturer and Installer, agreeing to repair or replace units that fail in materials or workmanship within the specified warranty period. Warrant coverage to include parts, equipment, and labor for repairs necessary to attain specified requirements. Warranty duration shall begin on the date of acceptance by Contracting Officer (Government). Provide warranty for each system installed in specified locations.”
Section 23 00 00, paragraph 2.10.8.1 Acoustical Duct Liner:
Replace paragraph in its entirety with below:
“Use flexible elastomeric duct liner for lining ductwork and conforming to the requirements of ASTM C1071, Type I and II. Provide uniform density, graduated density, or dual density liner composition, as standard with the manufacturer. Provide not less than 1 inch thick coated lining. Where acoustical duct liner is used, provide the thermal equivalent of the insulation specified in Section 23 07 00 THERMAL INSULATION FOR MECHANICAL SYSTEMS for liner or combination of liner and insulation applied to the exterior of the ductwork. Increase duct sizes shown to compensate for the thickness of the lining used. In lieu of sheet metal duct with field-applied acoustical lining, provide acoustically equivalent lengths of elastomeric duct liner or factory fabricated double-walled internally insulated duct with perforated liner.”
Section 23 00 00, paragraph 2.11.2 COILS:
Replace paragraph in its entirety with below:
“Provide fin-and-tube type coils constructed of seamless copper tubes and aluminum or copper fins mechanically bonded or soldered to the tubes. Provide copper tube wall thickness that is a minimum of 0.016 inches. Provide aluminum fins that are at least 0.0055 inch minimum thickness. Provide copper fins that are at least 0.0045 inch minimum thickness. Provide casing and tube support sheets that are not lighter than 16 gauge galvanized steel, formed to provide structural strength. When required, provide multiple tube supports to prevent tube sag. Test each coil at the factory under water at not less than 400 psi air pressure and make suitable for 200 psi working pressure and 300 degrees F operating temperature unless otherwise stated. Mount coils for counterflow service. Rate and certify coils to meet the requirements of AHRI 410. Coils shall be circuited for counter-flow heat transfer.”
DRAWINGS:
Sheet AF601: Delete as originally issued and substitute therefor the attached like numbered sheet dated 11/16/2016.
Sheet AF602: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/16/2016.
Sheet E000: Delete as originally issued and substitute therefor the attached like numbered sheet dated 11/17/2016.
Sheet EP101: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/17/2016.
Sheet EP107: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/18/2016.
Sheet EP601: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/18/2016.
Sheet EP702: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/18/2016.
Sheet EP703: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/18/2016.
Sheet EP704: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/18/2016.
Sheet MI709: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/16/2016.
Sheet MI712: Delete as original issued and substitute therefor the attached like numbered sheet dated 11/16/2016.
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