periodically during the installation to assure that the exhaust system
installed in accordance with the contract requirements. The Exhaust System
Specialist shall witness the final tests, and shall sign the test results.
The Exhaust System Specialist, after completion of the system inspections
and successful Final Acceptance Test, shall certify in writing that the
system has been installed in accordance with the contract requirements.
Any discrepancy shall be brought to the attention of the Contracting
Officer in writing, no later than three working days after the discrepancy
is discovered.
3.4
EXHAUST SYSTEM INSTALLATION
3.4.1
General Requirements
Welding and brazing shall conform to ASME BPVC SEC IX. Horizontal sections
of the main duct shall be installed with the longitudinal lock seam on the
top. Slip joints shall be sealed in accordance with [SMACNA Rectangle Duct
Const] [SMACNA Rnd Duct Const]. Riser duct shall be supported and anchored
to the structure as indicated. Main duct shall be attached to the
structural members of the building as recommended by [SMACNA Rectangle Duct
Const] [SMACNA Rnd Duct Const].
3.4.2
Building Surface Penetrations
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NOTE: Indicate penetration and sleeve and packing
details on the drawings in accordance with
TM-5-812-2, Section 07840 FIRESTOPPING.
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Sleeves or framed openings shall be utilized where duct penetrates building
surfaces. Penetrations shall be sealed[, and fireproofed in accordance
with Section 07840 FIRESTOPPING]. The space between the sleeve or framed
opening and the duct shall be packed with mineral wool or other approved
material. Closure collars shall be installed around the duct on both sides
of the penetrated surface. Collars shall fit tight against the building
surfaces and snugly around the duct.
3.5
PIPE COLOR CODE MARKING
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NOTE: Designer will coordinate color code marking
with UFGS 09900 PAINTS AND COATINGS. Color code
marking for piping which are not listed in Table I
of Paragraph Pipe Color Code Marking of UFGS 09900
will be added to the table.
**************************************************************************
Color code marking of piping shall be as specified in Section 09900 PAINTS
AND COATINGS.
3.6
FINAL ACCEPTANCE TESTS
Each exhaust system and inlet shall be balanced to produce the indicated
air quantities within 10 percent at the conditions shown. Control devices
shall be set to control at the points indicated or directed. Bearings
shall be lubricated, and the speed, direction or rotation of each fan shall
be checked. The running current of each motor shall be checked. Upon
completion, and prior to acceptance of the installation, the exhaust system
SECTION 15940A
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