FINAL DRAFT 9-26-95
REVISED FEBRUARY 1997
Technical Considerations
Narrative
Air Quality and Distribution:
Seismic:
Where required, install HVAC systems
Follow TB Criteria in HVAC Design
with seismic provisions as outlined in the VA
Manual for Hospital Projects. In general,
HVAC Design Manual for Hospital Projects.
clean areas shall have positive air pressure
and soiled areas should have negative air
Refer to VA Handbook PG-18-3, CD-54,
flow with respect to the adjoining areas.
"Natural Disaster Resistive Design (Non-
Structural)" for additional information.
The transfer air should not be more than
2.8m3/min (100 CFM) per undercut door.
Noise Level:
Care should be taken to minimize the
short-circuiting of air between supply and
Select HVAC equipment, ductwork and air
return/exhaust openings in interior spaces.
distribution devices to acheive noise levels
listed in the HVAC Design Manual for
Temperature Controls in Sleep Study
areas are critical. Provide adjustable day
Hospital Projects and Master Construction
and night controls
Specification Section 15200.
Corridors should not be used to supply or
to exhaust/return air from rooms. Corridor air
Plumbing:
may be used to ventilate toilet rooms, HACS
and small electrical or telephone closets
opening
directly
on
corridors.
Water and Waste Systems:
Exfiltration/Infiltration from Positive/negative
pressure rooms adjacent to a corridor should
The plumbing systems should be provided
be considered in balancing air flow.
to satisfy the departmental plumbing needs.
The department's domestic cold waters
Exhaust System:
should be piped to all plumbing fixtures and
equipment requiring this utility.
Bronchoscopy and sputum induction
areas need to be designed to comply with the
The department's domestic hot water
latest CDC Guidelines.
should be piped to all plumbing fixtures and
equipment requiring this utility. A hot water
Refer to Guideplate Design Standard
return system should be provided to ensure
sheet for additional information
the design temperature at the farthest outlet.
VA DESIGN GUIDE
PULMONARY MEDICINE SERVICE
PAGE 2-9
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