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SECTION
1020 VERTICAL EXIT ENCLOSURES
1020.1.3
Ventilation. Equipment and ductwork for exit enclosure
ventilation as permitted by Section
1020.1.2 shall comply with one of the following items:
1.
Such equipment and ductwork shall be located exterior to
the building and shall be directly connected to the exit
enclosure by ductwork enclosed in construction as required
for shafts.
2. Where such equipment and ductwork is located within the
exit enclosure, the intake air shall be taken directly from
the outdoors and the exhaust air shall be discharged directly
to the outdoors, or such air shall be conveyed through ducts
enclosed in construction as required for shafts.
3. Where located within the building, such equipment and
ductwork shall be separated from the remainder of the building,
including other mechanical equipment, with construction
as required for shafts. In each case, openings into the
fire-resistance-rated construction shall be limited to those
needed for maintenance and operation and shall be protected
by opening protectives in accordance with Section
715 for shaft enclosures. Exit enclosure ventilation
systems shall be independent of other building ventilation
systems.
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