FINAL DRAFT 2-29-96
Revised 10/96
Design Standards
Megavoltage Unit
HEATING, VENTILATING AND AIR
PLUMBING AND MEDICAL GASES
CONDITIONING
Cold Water:
Yes
Hot Water:
Yes
Dry Bulb Temp Cooling:
24C (76F)
Laboratory Air:
--
Dry Bulb Temp Heating:
25C (78F)
Laboratory Vacuum:
--
Minimum % Outside Air:
15%
Sanitary Drain:
Yes
100% Exhaust Air:
Yes
Reagent Grade Water:
As Required
Noise Criteria:
NC-40
Medical Air:
--
Steam:
Yes
Medical Vacuum:
--
Relative Humidity/Cooling:
50%
Oxygen:
--
Relative Humidity/Heating:
45%
Notes:
1. Provide a line of compressed air
Minimum Air Changes/Hr.:
8
capable of providing minimum of
Room Pressure:
Negative
1 CFM at 5 psig.
AC Load-Equipment:
2. Dry preaction system is
Therapy Rm:
12,505w (42,675 Btu/hr)
recommended for fire protection
Control Room:
2,520w (8,600 Btu/hr)
system.
AC Load Lighting:
3. Some local potable water
Therapy Rm:
14w/sm (1.3 w/sf)
supplies could cause excessive
Control Rm:
28 w/sm (2.6w/sf)
corrosion and frequent
Number of People:
6
replacement of the internal
Special Exhaust:
Yes
equipment heat exchange.
Notes:
1. Route all ductwork in vault down
consult equipment manufac-
maze and over door to avoid
turer regarding water treatment
radiation scatter.
requirements.
2. Coordinate coolant water
requirement with equipment
supplier. The use of city water
is not permitted.
3. Provide dedicated exhaust
system to biological safety
cabinet (if required).
VA DESIGN GUIDE
GUIDE PLATE 4-5
RADIATION THERAPY SERVICE
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