Title 24 Elevator Schedules or Any Elevator Schedules
One of my coworkers has spent quite a bit of time trying to find Title 24 California Nonresidential ACM (Alternative Compliance Manual) Reference Manual Appendix 5.4B which is supposed to have elevator schedules for different building types but keeps hitting dead ends. In particular, he gets dead links, or the documents that are referenced only specify the ventilation and lighting requirements in elevators.
Does anyone know of good elevator schedules for different building types? Anything you can provide would be appreciated.
UPDATE
So it looks like there are elevator schedules available for some of the building types that trace their way back to ASHRAE, but there aren't any schedules for DOE prototypes Large Hotel, Small Hotel, Highrise Apartment, Midrise Apartment. I have no idea where the schedules in the DOE reference models came from for those buildings if they didn't come from ASHRAE.
POST SCRIPT
This whole thing started when we looked at the fraction of energy used for the elevators in the DOE reference models.
All the literature we've found says that elevator use should be 2%-5% of total energy use for the building, and the only one that gets close is the Large Office model, but that one has a very energy intensive data center in it, so that one is probably off too. The two options for correcting the elevators are the schedules are a little off or the maximum Watts of the elevators is off. We are investigating the schedules first.
In response to @MatthewSteen's answer, if you download 90.1-2016 Large Office from the IDFs link and open ASHRAE90.1_OfficeLarge_STD2016_Albuquerque.idf, the schedule for the elevators is
Schedule:Compact,
BLDG_ELEVATORS, !- Name
Fraction, !- Schedule Type Limits Name
Through: 12/31, !- Field 1
For: SummerDesignDay, !- Field 2
Until: 24:00,0.5, !- Field 3
For: WinterDesignDay, !- Field 5
Until: 24:00,0.05, !- Field 6
For: AllOtherDays, !- Field 8
Until: 04:00,0.05, !- Field 9
Until: 05:00,0.10, !- Field 11
Until: 06:00,0.20, !- Field 13
Until: 07:00,0.40, !- Field 15
Until: 09:00,0.50, !- Field 17
Until: 10:00,0.35, !- Field 19
Until: 16:00,0.15, !- Field 21
Until: 17:00,0.35, !- Field 23
Until: 19:00,0.50, !- Field 25
Until: 21:00,0.40, !- Field 27
Until: 22:00,0.30, !- Field 29
Until: 23:00,0.20, !- Field 31
Until: 24:00,0.10; !- Field 33
We actually knew about this, and we thought the schedule was inaccurate since office buildings typically have different behavior on the weekends and the schedule is the same on the weekends as the weekdays.
Looking at the Google Sheet, the schedule is the same, which is not surprising since the DOE reference models are based on the DOE Commercial Prototype Building Models. However, there are more accurate Large Office elevator schedules. On lines 11172,11173,11174 there are schedules for the Large Office that don't change on the weekends, but ...
Be careful with elevator schedules - elevator power may be entered as either peak motor power or average power, and if you pair motor power with something that resembles an occupancy schedule with fractional values up to 0.9 or 1, you will get ridiculously high energy use from the elevator.
@mdahlhausen That appears to be what is happening with the DOE reference models. The lights and fans in the elevator have the same schedule as the elevator motor schedule. My coworker is trying to get in touch with some elevator manufacturers and some creators of elevator energy use calculators. The energy use is just too high, and the max power in the electric use objects seems reasonable for that elevator, so the schedules might need some tweaking.
yep, that's a known issue with early reference models. The new DOE prototypes (in progress) are better.
@mdahlhausen In progress, but are the elevator schedules in the new DOE prototypes complete? One of my coworkers would be really happy to get those.