Final answer:
According to the ADA guidelines, automatic door operators (ADA button) must be installed at a specific height and distance, and must be operable with a single motion and minimal force.
Step-by-step explanation:
According to the ADA guidelines, automatic door operators (ADA button) must be installed at a height no higher than 48 inches and no lower than 15 inches above the floor. The distance between the ADA button and the door should be within reach of someone using a wheelchair.