PDFWAC 51-11C-71036

Table B103(6)—Parking garage occupancy.

Table B103(6)
Parking Garage Occupancya
Hour of Day
(time)
Schedule for
Occupancy
Percent of
Maximum Load
Schedule forLightingb/
Receptacle
Percent of
Maximum Load
Schedule for
HVAC System
Schedule forService Hot Water
Percent of
Maximum Load
Schedule for
Elevator
Percent of
Maximum Load
 
Wk
Sat
Sun
Wk
Sat
Sun
Wk
Sat
Sun
Wk
Sat
Sun
Wk
Sat
Sun
1
(12-1am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
2
(1-2am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
3
(2-3am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
4
(3-4am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
5
(4-5am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
6
(5-6am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
7
(6-7am)
 
 
 
100
100
50/100
 
 
 
 
 
 
 
 
 
8
(7-8am)
 
 
 
100
100
50/100
 
 
 
 
 
 
 
 
 
9
(8-9am)
 
 
 
100
100
50/100
 
 
 
 
 
 
 
 
 
10
(9-10am)
 
100
100
50/100
Based
 
Included
11
(10-11am)
 
100
100
50/100
on
 
with
12
(11-12pm)
N/A
100
100
50/100
likely
N/A
other
13
(12-1pm)
 
100
100
50/100
use
 
occupancies
14
(1-2pm)
 
100
100
50/100
 
 
 
15
(2-3pm)
 
 
 
100
100
50/100
 
 
 
 
 
 
 
 
 
16
(3-4pm)
 
 
 
100
100
50/100
 
 
 
 
 
 
 
 
 
17
(4-5pm)
 
 
 
100
100
50/100
 
 
 
 
 
 
 
 
 
18
(5-6pm)
 
 
 
100
50/100
50/100
 
 
 
 
 
 
 
 
 
19
(6-7pm)
 
 
 
100
50/100
50/100
 
 
 
 
 
 
 
 
 
20
(7-8pm)
 
 
 
100
50/100
50/100
 
 
 
 
 
 
 
 
 
21
(8-9pm)
 
 
 
100
50/100
50/100
 
 
 
 
 
 
 
 
 
22
(9-10pm)
 
 
 
100
50/100
50/100
 
 
 
 
 
 
 
 
 
23
(10-11pm)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
24
(11-12am)
 
 
 
50/100
50/100
50/100
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Total/Day
 
 
 
2000/
2400
1750/
2400
1200/
2400
 
 
 
 
 
 
 
 
 
Total/Week
 
 
 
 
129.50/
168
hours
 
 
 
 
 
 
 
 
 
Total/Year
 
 
 
 
6734/
8760
hours
 
 
 
 
 
 
 
 
 
Wk
=  Weekday
a
Schedules for occupancy, lighting, receptacle, HVAC system and service hot water are from ASHRAE Standard 90.1-1989 and addendums, except that 5 percent emergency lighting has been added for all off hours. Elevator schedules, except for restaurants, are from the U.S. Department of Energy Standard Evaluation Techniques except changed to 0 percent when occupancy is 0 percent. These values may be used only if actual schedules are not known.
b
Lighting profiles are modified to reflect the requirement for occupancy sensors in Section C405.2. For parking garage lighting, the schedule has been revised to accompany the office schedule: The lighting in the parking garage is set to be on at 100 percent for all hours when the building occupancy is 10 percent or greater, but reduced to 50 percent (per Section C405.2) for all hours when the building occupancy is less than 10 percent. For a parking garage serving a use other than office, it is acceptable to modify the parking garage schedule to parallel that use.
[Statutory Authority: RCW 19.27A.020, 19.27A.025 and chapters 19.27 and 34.05 RCW. WSR 13-04-056, § 51-11C-71036, filed 2/1/13, effective 7/1/13.]