PART 3
EXECUTION
3.1
WELDING
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NOTE: Retain the applicable welding requirements.
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[Piping shall be welded in accordance with qualified procedures using
performance qualified welders and welding operators. Procedures and
welders shall be qualified in accordance with ASME BPVC SEC IX. Welding
procedures qualified by others, and welders and welding operators qualified
by another employer may be accepted as permitted by ASME B31.1. The
Contracting Officer shall be notified 24 hours in advance of tests and the
tests shall be performed at the work site if practical. The welder or
welding operator shall apply his assigned symbol near each weld he makes as
a permanent record. Structural members shall be welded in accordance with
AWS D1.1/D1.1M.] [Welding and non-destructive testing procedures are
specified in Section 05093 WELDING PRESSURE PIPING.]
3.2
EQUIPMENT INSTALLATION
The Contractpr shall submit drawings containing complete wiring and
schematic diagrams, control diagrams, and any other details required to
demonstrate that the system has been coordinated and will properly function
as a unit. Drawings shall show proposed layout and anchorage of equipment
and appurtenances, and equipment relationship to other parts of the work
including clearances for maintenance and operation.
3.2.1
Blower Installation
Blowers shall be installed as indicated and in accordance with the
manufacturer's written instructions.
3.2.2
Air Distribution System Installation
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NOTE: The range of adjustment of the system on the
header is dependent on various design parameters
such as header size and basin shape and size.
Consult various manufacturers for proper dimension.
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The air distribution system shall be installed as indicated and in
accordance with the manufacturer's written instructions. Excavation,
trenching, and backfilling shall be in accordance with the applicable
requirements of Section 02300 EARTHWORK. The crown of the air main shall
be maintained at the same elevation. The system shall be adjusted such
that all diffusers on a header are within [_____] mm inch of a common
horizontal plane.
3.2.3
Diffuser Installation
Diffusers shall be installed as indicated and in accordance with the
manufacturer's written recommendations.
SECTION 11375A
Page 30
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