Elevation controller for air suction grille

摘要

An in-ceiling mount type air conditioner (50) including an operation switch (51) for switching a power supply status of a power source to an elevating motor (140) for elevating an air suction grille (9), upper-limit position detectors (52,53) for detecting the upper-limit and lower-limit positions of the air suction grille (9) respectively, a forced stop detector for detecting the forced stop of the air suction grille, a timer (143) for counting a predetermined time from the actuation of the upper-limit position detector (52), and a controller for stopping the elevating motor (140) when the timer (143) counts the predetermined time after the air suction grille (9) reaches the upper-limit position and keeping the air suction grille (9) to stop when the forced stop of the air suction grille is detected by the forced stop detector.