HVAC REQUIREMENTS IN ANIMAL RESEARCH
(REFER TO VA DESIGN GUIDE, VETERINARY MEDICAL UNIT, FOR GRAPHIC AND CRITICAL INFORMATION)
1. Indoor Design Conditions
Area
Summer
Winter
HVAC Design
Degree C
Degree C
Manual Ref.
(Degree F)
(Degree F)
Animal OR
22 (73) & 50% RH
22(73) & 50 % RH
Table 1-1
Animal Rooms (Quarantine)
18 (65) 60 % (plus/minus
29 (85) 30 %
Table 1-1
5 %) RH
(plus/minus 5 %) RH
Other areas
See VA Design Guide
2. Maintain minimum 15 air changes per hour in animal research area.
Table 1-2
3. Maintain negative pressure at all times in animal research area.
Table 1-4
4. Maintain NC-40 in all occupied areas.
Table 1-5
5. Filtration efficiency: Prefilters 30%, and After-filters 85% for animal holding
Table 2-1 and 3.3
areas and 95% for operating rooms, in supply air, and one inch thick
filters in exhaust grilles. at low level.
6. Individual room temperature controls. Preheat and reheat coils to be
2.14.1.9 and 3.3
normally closed. Provide local alarms for space temperatures and at
ECC.
7. Dedicated, 100% outdoor air, constant volume with terminal reheat
1.3.4, 1.3.5.1, and
system.
3.20
8. Dedicated air-cooled chiller, normal use for animal research area with
2.12.8 and 3.3
back up from main chilled water system.
9. Fume hood exhaust system. No heat recovery allowed in all fume hood
2.11.2, 2.11.3 and
exhaust
3.3
10. Provide a dedicated exhaust system with a canopy hood for cage
3.3
washer
11. No heat recovery allowed in wet exhaust from cage or cart washers
1.9.3
12. Emergency power for air-cooled chiller, air handling units, exhaust fans,
2.16.2
pumps and controls.
Contact Satish Sehgal @ 202-565-5032, Kurt Knight @ 202-565-4663, Don Walden 202-565-5014 or Sat
Gupta @ 202-565-5268 for additional information.
September 2001
Previous Page
