OTIS Traction Low Rise Elevators At Sheraton Hotel - Downtown Phoenix 

This Otis elevator is pretty much the same as the other ones except that it doesn't serves floors 18-31, but it does have levels below the ground (main floor), which are B1 and B2. Also, this elevator does not require a room key for floors 2-17. This is very rare/odd/strange. It serves a 13th floor.
Brand: OTIS
Type: Traction
Capacity: 3500 lbs.
Fixtures: Series 5
Motor: Unknown
Total Floors: 33 (B2, B1, G, 2, 3, 4, 5-17) (does not serves floors 18-31)