PART 2
PRODUCTS
Not used.
PART 3
EXECUTION
3.1
TEST PROCEDURE
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NOTE: Facilities requiring industrial ventilation
often contain offices, restrooms, locker rooms with
showers and mechanical rooms. These rooms are
affected by the industrial ventilation system for
the facility. Contaminants from the work area must
be prevented from migrating into these rooms. This
is accomplished by providing a slightly negative
pressure in the work area.
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Determine the static pressure of the work area relative to [the outdoors
and] the following rooms: [_____]. Report the results.
3.1.1
Preliminary Review
Conduct a preliminary review of the facility [45] [_____] calendar days
prior to beginning the test. Perform the following tasks and report the
results of each task in the Preliminary Review Report.
a.
Locate industrial ventilation system components including hoods,
hood transitions, ductwork, branch to main duct entries, elbows,
expansions and contractions, fans, air pollution control devices,
exhaust stacks, weather protection, replacement air plenums, and
distribution devices. Show components on a single line drawing
for each fan system.
b.
Review design drawings, specifications, and shop drawings to
verify that testing can be performed on the system. Record, on
the single line drawings, locations of planned pitot traverses of
mains and branches and design velocities. Report potential test
problems, such as inadequate space, to the Contracting Officer.
c.
Identify on the single line drawings the location of system fire
protection components that may alter air flow, such as fire
dampers.
d.
Identify on the single line drawings the location of emergency and
spill sensors.
e.
Identify on the single line drawings the location of [pressure
differential sensors] [static pressure sensors].
f.
Use AMCA 201 to identify system effects that occur at the inlet
and outlet of each replacement and exhaust air fan.
g.
Verify that ductwork sizes, elbows and fittings, exhaust stacks
and weather protection meet the design plans and specifications
for both replacement and exhaust air systems.
h.
Verify that fans are rotating in the proper direction.
SECTION 15951N
Page 27
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