Air Panel P-Ap56Nams; Motion Sensor - Hitachi P-AP56NAM Installations- Und Betriebshandbuch

AIR PANEL P-AP56NAMS

8 AIR PANEL P-AP56NAMS
8.1 NAME OF PARTS
Air panel
P-AP56NAMS
8.2 INSTALLATION

8.2.1 Motion sensor

Motion sensor detects the human activity by measuring the
level of change in infrared light emitted by humans or objects.
Therefore, the misdetection or undetectable of the motion may
occur under the following situations.
No alternation of temperature or movement of heat
-
source in the detection area.
- Obstruction such as glass impervious to infrared light in
the detecting area.
- Heat source moves rapidly in the detecting area.
Someone is in a room with a little motion.
-
Ceiling height is 2.7 meters or more.
-
- Person is facing their back against the motion sensor or
exposure of the skin is less.
- It may be difficult for the motion sensor to detect human
activity on the border of the detection area.
The sensing area for the motion sensor is shown in the figure
below when applying the motion sensor with the air panel:
9 PMML0570 rev.0 - 01/2021
Motion sensor
Air inlet grille
Louver
Motion sensor
Installation height of indoor unit: h (m)
Sensing area for motion sensor: Ø a (m)
The operation is continued even if there is no person in a room.
- Object such as a curtain or a leafy plant is swaying in the
wind in the detecting area.
Moving animal or insect is in the detecting area.
-
Airflow returns to the motion sensor kit by hitting
-
obstacles such as shelf, locker, etc.
- Direct lights such as sunlight or headlight from outside
enters the detecting area.
Air outlet
h
φa
0.8m from floor surface
2.7
Approx. 5.0