[c. System Diagrams: Provide a system diagram
in the TAB report showing the location of all terminal outlet
supply, return, exhaust and transfer registers, grilles and
diffusers. Use a key numbering system on the diagram which
identifies each outlet contained in the outlet airflow report
sheets.]
[d. Static Pressure Profiles: Report static pressure profiles for
air duct systems including: [_____]. Report static pressure data
for all supply, return, relief, exhaust and outside air ducts for
the systems listed. The static pressure report data shall
include, in addition to NEBB/AABC required data, the following:
(1) Report supply fan, return fan, relief fan, and exhaust fan
inlet and discharge static pressures.
(2) Report static pressure drop across chilled water coils, DX
coils, hot water coils, steam coils, electric resistance heating
coils and heat reclaim devices installed in unit cabinetry or the
system ductwork.
(3) Report static pressure drop across outside air, return air,
and supply air automatic control dampers, both proportional and
two-position, installed in unit cabinetry, or in the system
ductwork.
(4) Report static pressure drop across air filters, acoustic
silencers, moisture eliminators, air flow straighteners, air flow
measuring stations or other pressure drop producing specialty
items installed in unit cabinetry, or in the system ductwork.
Examples of these specialty items are smoke detectors, white sound
generators, RF shielding, wave guides, security bars, blast
valves, small pipes passing through ductwork, and duct mounted
humidifiers.
Do not report static pressure drop across duct fittings provided
for the sole purpose of conveying air, such as elbows,
transitions, offsets, plenums, manual dampers, and branch
takes-offs.
(5) Report static pressure drop across outside air and
relief/exhaust air louvers.
(6) Report supply, return, exhaust/relief, outside air duct
static pressure readings, including the following locations:
Main Duct: Take readings at four locations along the full length
of the main duct. Locations shall be at 25 percent, 50 percent,
75 percent, and 100 percent of the total duct length.
[Floor Branch Mains: Take readings at floor branch mains served by
a main duct vertical riser.]
Branch Main Ducts: Take readings at branch main ducts.
[VAV Terminals: Take readings at inlet static pressure at VAV
terminal box primary air branch ducts.]
SECTION 15950N
Page 21
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