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Coordination Checklist
14. The ceiling supporting framework should be designed to minimize
restrictions on locations of service drops, HVC terminals and lighting
fixtures. Restrictions on service drop locations are also, in effect,
restrictions on the location of partitions, fixtures and equipment. (See
Section 225.3 and 333.4.) Service penetrations must be detailed to
maintain the acoustic and fire separation characteristics of the ceiling.
(See Section 321.3.)
15. The service zone should be so organized that horizontal access via the
service bays will suffice for the greatest possible number of
maintenance, repair and replacement tasks. Distribution components
requiring a greater degree of access than can be provided in this
manner will require suitable access panels in the ceiling. (See Section
224.3.) As far as practical, these panels should be located in areas
other than those normally used by patients or having critical aseptic
requirements, and outside of main circulation routes. The exterior wall
should provide removable spandrel panels at the service zone levels
for additional accessibility during major alternations. (See Section
463.)
16. If the service zone is to be used as a return/exhaust plenum, the
ceiling and spandrel panels must be reasonably airtight. (See Section
342.2.)
17. Forced-air registers should be located exclusively in the ceiling, and
supplementary perimeter convectors, if required, should be located
exclusively on the exterior wall. (See Sections 341 and 342.) The only
mechanical components that should normally be located in or on
partitions are thermostats and their control lines. Certain exceptions to
the location of registers may be necessary, such as in surgeries.
Perimeter convectors must not be so enclosed in the exterior wall that
they cannot be readily removed for maintenance or replacement. All
surface must be conveniently accessible for cleaning by standard VA
housekeeping procedures.
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