to ventilate the biological safety cabinets and canopy hoods.
(a) Biological safety cabinets: Coordinate locations and type of the
safety cabinets with the architectural equipment drawings and provide
exhaust systems in accordance with the guidelines given in Article 2.11.3.
(b) Canopy Hoods: Coordinate location and size of hoods with the
architectural equipment drawings. Provide a dedicated exhaust system to
remove harmful gases produced during cutting of the styrofoam blocks
underneath the hood. Establish exhaust air quantity at the rate of 0.51
m/s (100 fpm) air velocity over the hood face area. Provide round welded
ductwork to avoid duct leakage. Ductwork should be arranged to avoid
interference with the overhead hoistway.
(c) All water piping, including drain lines must be kept away from areas
above linear accelerators and associated control equipment to prevent
water damage.
3.16
MEDICAL MEDIA SERVICE (MMS)
3.16.1 GENERAL
Medical Media Service is comprised of core spaces (functions) and or
expanded core spaces. The actual program and required space depends upon
the number of employees, individual medical center needs, and/or VISN
support. In the following paragraphs, the Special and General HVAC
requirements are defined and the spaces to which they are applicable have
been identified.
3.16.2 HVAC REQUIREMENTS
3.16.2.1 Indoor Design Conditions
(a) Special:
(1) Summer and Winter: 68 to 72 Degrees F Db.
(2) Summer: 60 percent Relative Humidity (Uncontrolled)
Winter: 30 percent Relative Humidity (Zone Control)
(b) General:
(1) Summer: 76 to 78 Degrees F Temperature, 60 percent Relative Humidity
(Uncontrolled).
(2) Winter: 70 to 72 Degrees F Dry-Bulb Temperature, 30 percent Relative
Humidity (Zone control)
(c) Notes:
(1) If the MMS is equipped with Video Editing/CCTV Control Suite (Expanded
Core Space), the maximum space temperature shall not exceed 68 degrees F.
(2) Winter humidification control is required at the air-handling unit; do
not provide any room humidity control.
HVAC DESIGN MANUAL
3-13
HVAC REQUIREMENTS FOR OCCUPIED AREAS
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