3.1.14.4
Field Inspection of Protective Coating Work
Visually inspect coated surfaces from a maximum distance of 1.5 meters 5
feet with special attention given to corners and crevices. Check coating
thickness in accordance with SSPC Paint 11. Perform inspection immediately
prior to erection of ductwork and equipment and in the presence of the
Contracting Officer. Repair coating as required. Apply additional coating
if thickness is not sufficient.
3.1.15
Factory and Field Painting and Finishing
3.1.15.1
Factory Work
Factory finish interior ferrous metal and other specified metallic
equipment and component surfaces with manufacturer's standard surface
preparation, primer, and finish coating. Factory finish exterior to
building space ferrous metal surfaces and other exterior to building and
interior to building metallic or nonmetallic surfaces with specified
protective coating system in accordance with the paragraph entitled
"Protective Coating Material," in this section and otherwise with
manufacturer's standard surface preparation, primer and finish which meet
the requirements of paragraph entitled "Corrosion Prevention."
3.1.15.2
Field Work
Touch-up or if necessary, repaint factory applied finishes which are
marred, damaged, or degraded during shipping, storage, handling, or
installation to match the original finish. Clean and prime field or shop
fabricated ferrous metals required for the installation specified under
this section in accordance with the applicable provisions of Section [09900
] PAINTS AND COATINGS. Painting of surfaces not otherwise specified and
finish painting of items only primed at the factory or elsewhere, are
specified as part of the work under Section [09900] PAINTS AND COATINGS.
3.2
TESTING, ADJUSTING, AND BALANCING
3.2.1
Ductwork Structural Integrity and Leakage Testing
Inspect and test systems pressure rated higher than 498 Pa 2 inches water
gage for structural integrity and leakage as systems or sections during
construction but after erection, as work progresses, in system or section
lengths not exceeding 30 meters 100 feet. Test for structural integrity at
[_____] percent in excess of system fan positive or negative total
pressure. Test for leakage at [_____] percent in excess of system fan
positive or negative total pressure. [Leakage test procedure and apparatus
shall be in accordance with SMACNA Leakage Test Mnl. Total leakage,
prorated to length of duct under test, shall not exceed one percent of
system capacity.] Do not permit leakage in positive pressure ducts in
buildings carrying flammable or toxic materials.
3.2.2
Power Transmission Components Adjustment
Test and adjust V-belts and sheaves for proper alignment and tension
preliminary to operation and after 72 hours of operation at final speed, in
the presence of the Contracting Officer. Belts on drive side shall be
uniformly loaded, not bouncing. [Align direct-drive couplings to less than
half of manufacturer's allowable range of misalignment.]
SECTION 15801N
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