3.14.1.3 The soiled linen area shall be kept under negative pressure
relative to the clean linen area and other surrounding areas at all times.
Table 3-1 Ventilation Requirements for Laundry
All Air
Minimum Air
Area
Pressure
Minimum
Exhausted
Changes/Hr of
Outdoor Air
Supply Air
Changes/Hr
Laundry, General
Negative
2
10
Yes
Soiled Linen
Negative
-
10
Yes
Clean Linen
Positive
-
2
No
3.14.2 ENERGY CONSERVATION
(a) Use a lint filter and make-up air systems to clean and recirculate the
hot dryer exhaust air back to the dryer utilizing the dryer blower.
(b) Provide heat recovery systems, wherever feasible, for maximum energy
conservation.
(c) Air change rate may be reduced during heating and cooling seasons.
(d) Insulate heat-producing equipment, where practical, to reduce the
temperature in occupied areas.
3.14.3 COORDINATION
Coordinate utility requirements and heat gain from the actual equipment
submittals with HVAC calculations for the laundry.
3.15 LINEAR ACCELERATORS
3.15.1 INDOOR DESIGN CONDITIONS
Summer: 24 degrees C (76 degrees F) Db, 50 percent RH
Winter: 25 degrees C (78 degrees F) Db, 30 percent RH
3.15.2 EMERGENCY POWER REQUIREMENTS
Closed loop water chilling equipment for Linear Accelerators shall be on
emergency power.
3.15.3 SPECIFIC REQUIREMENTS
requirements vary with the make of the linear accelerators. Check with the
equipment manufacturer for cooling requirements.
(a) The heat dissipated to the space during idle and working cycles of the
linear accelerator.
(b) The amount of internal cooling required for the equipment.
(c) The cooling shall be provided by circulating cold water at 551 kPa (80
Psig) (maximum inlet pressure) and at an inlet temperature between 10 to
29 degrees C (50 to 86 degrees F). Use closed-loop, dedicated air-cooled
chiller for supplying the water. The use of the city water is not
permitted. See Article 2.12.9 for the dedicated refrigeration system.
HVAC DESIGN MANUAL
3-12
HVAC REQUIREMENTS FOR OCCUPIED AREAS
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