UFC 4-211-01N
25 October 2004
Including change 1, 1 October 2006
6-3
VENTILATION. Provide ventilation in accordance with MIL-HDBK-1003/3,
UFC 3-410-06N, Design: Industrial Ventilation and as follows:
6-3.1
Toxic Fumes. Toxic fumes and combustible vapor that generate in work
areas must be exhausted directly to the outside. The Airframes, Corrosion Control and
Electric Shops are likely producers of toxic fumes. These shops must always be
provided with exhaust ventilation to the outside.
6-3.2
Fuel. If fuel systems maintenance is performed in the OH spaces, provide
system.
6-4
AIR CONDITIONING. Provide air conditioning in accordance MIL-HDBK-
1003/3 and MIL-HDBK-1190. Provide automatic thermostatic control and provide for
equipment to be shut down when not required for cooling. Air conditioning is not
required in the general OH space.
6-5
MECHANICAL EQUIPMENT REQUIREMENTS. Locate exterior
mechanical equipment out of sight or provide screen walls (see UFC 4-010-01 for
standoff distances). Design the size of mechanical rooms and exterior enclosures to
accommodate manufacturer's recommendation for service, airflow and maintenance.
Provide variable frequency drives where applicable. Connect direct digital controls to
base wide monitor system.
6-5.1
Corrosion Protection. Provide special finish coatings on the interior and
the exterior surfaces of HVAC equipment exposed to the weather, including all coil
surfaces and interior equipment surfaces belonging to the first HVAC equipment
(excluding louvers) in the supply ductwork system that is subjected to outside supply air.
The coating must not act as an insulating barrier to the HVAC heat exchange
capability.
6-6
FORCE PROTECTION. Position air intakes within two-story structures
above the level of the first floor ceiling height, at least 3 m (10 ft) above grade. For
single-story areas such as the mechanical room, the underside of all intake louvers
must be at 3 m (10 ft) minimum, and in accordance with Standard 17, "Air Intakes" of
UFC 4-010-01.
When a height restraint requires a roof mounted location, the exhaust
stacks must be relocated to ensure that cross contamination with the fresh air intake
cannot occur, all in accordance with the International Mechanical Code, and with NFPA
90A, Standard for the Installation of Air-Conditioning and Ventilation Systems.
The DDC system must include an emergency shut-off switch that will
immediately shut down the heating, ventilation and air conditioning (HVAC) system of
inhabited structures, in accordance with Standard 19, "Emergency Air Distribution
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