2 ms·
Nondirectional calls are mostly found in very early (pre-war) or small building (3-4 floors) installations.
by userbinator 2mo ago
Nondirectional calls are mostly found in very early (pre-war) or small building (3-4 floors) installations.
- userbinator 2mo agoPlease see: https://liftescalatorlibrary.org/paper_indexing/papers/00000073.pdf https://liftescalatorlibrary.org/paper_indexing/papers/00000... "2.3 Non-directional collective Non-directive collective control provides a single pushbutton at each landing. This pushbutton is pressed by passengers to register a landing call irrespective of the desired direction of travel. Thus, a lift travelling upwards, for example, and detecting a landing call in its path stops to answer the call, although it may happen that the person waiting at the landing wishes to go down. This type of control is only acceptable for short travel lifts."