Table 5-1
Indoor Design Conditions
3
Summer
Winter
1
2
1
2
RH
DB
RH
Type of Area
DB
General Office
24 (75)
22 (72)
9
4
22 (72)
45
22 (72)
ADP Rooms
Corridors
24 (75)
22 (72)
10
24 (75)
22 (72)
Building Lobbies
Toilets
24 (75)
22 (72)
Locker Rooms
26 (78)
21 (70)
Electrical Closets
26 (78)
13 (55)
5
8
13 (55)
Mech. Spaces
35 (95)
5
Elec. Switchgear
35 (95)
13 (55)
10
5
26 (78)
13 (55)
Elevator Mach. Room
6
18 (65)
Emerg. Gen. Room
40 (104)
5
Transformer Vaults
40 (104)
Stairwells
(none)
18 (65)
7
12
24 (75)
45
22 (72)
30
Comm./Tel. Frame Room
Storage Room
30 (85)
18 (65)
11
24 (75)
22 (72)
Conference Room
10
24 (75)
22 (72)
Auditorium
10
24 (75)
22 (72)
Kitchen
10
24 (75)
22 (72)
Dining
10
24 (75)
22 (72)
Cafeteria
Courtrooms
24 (75)
22 (72)
454*
*Requires humidification in the winter.
Notes:
1 Temperatures are degrees Celsius (Fahrenheit), to be maintained at +/-1 C (+/-2 F).
2 Relative humidity is minimum permissible, stated in percent. Maximum permissible relative humidity is 60 percent in conditioned areas.
3 Dry bulb and relative humidity are to be maintained 150 mm (6 inches) to 1800 mm (6 feet) above the floor.
4 Relative humidity should be maintained at +/-5 percent in ADP spaces.
5 Maximum temperature. Space to be mechanically cooled if necessary.
6 Room must not exceed temperature with generator running.
7 Must comply with EIA/TIA Standard 569.
8 Minimum temperature in the building must be 13 C (55 F) even when unoccupied.
9 Confirm equipment manufacturer 's requirements as more stringent. Provide in-room display and monitor device (such as wall mounted temperature and humidity chart
recorder),
10 System shall be designed for process cooling. Cooling system shall be a dedicated independent system.
11 Provide independent temperature control.
12 Minimum relative humidity requirements may be omitted in moderate southern climate zones upon approval of local GSA representatives.
122 F A C I L I T I E S S T A N D A R D S
FOR THE
PUBLIC
BUILDINGS
SERVICE
5.3 Design Criteria
Revised March 2005 PBS-P100
Previous Page
