P5417050-rev.1
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Use Conditions and Precaution Statements
1. The motion sensor operates by detecting minute changes in temperature in the infrared spectrum.
Moving objects or human activity with temperature differences can be distinguished from the
temperature of the surrounding body.
DO NOT install the decorative panel equipped with a motion sensor in the following places. It can
result in poorly identified or defined motion, or degraded performance of the motion sensor.
2. Human activity or moving objects can set off the motion detector. The sensor inside a suspended
unit has a range of 13 ft. (4m). Assuming there is human activity in the area, a signal is sent to
activate the unit and the temperature of the area is cooled to the set temperature. When activity
ceases, the unit is signaled to relax and the ambient air temperature rises. Thus, energy efficiency
is achieved.
8.4.3 Caution for Electrical Wiring
Do not connect the power supply wiring and the communication cable into one terminal.
A manual switchbox is required when communication cable is required.
▫ Where ambient temperature changes drastically.
▫ Where excessive force or vibration is applied to the sensor.
▫ Where static electricity or electromagnetic waves may generate.
▫ Where interference of infrared light such as gasses or mist is in the detecting area.
▫ Where the lens for the sensor is exposed to high temperature and humidity for a long time.
▫ Where fluid or corrosive gases exist.
▫ Where light such as sunlight or direct light affects the sensor.
▫ Where hot air from a heater, or something similar, directly affects the sensor.
▫ Where the airflow bounces back to the sensor after hitting obstacles such as a shelf or locker.
▫ Where blower devices such as a ceiling fan or ventilating fan affects the airflow from the indoor
unit.
▫ Where weather directly affects the surface of the sensor.
▫ Where the lens surface may smudge or be damaged such as from a dusty environment.
Detecting function will decrease if the lens for the sensor smudges.
If this happens, wipe off smudges using a cotton swab soaked with alcohol (isopropyl alcohol
is recommended) or a soft cloth. When wiping off smudges on the sensor lens, do not apply
excessive force. If excessive force is applied, the resin lens may be damaged and this may cause
malfunctions such as misdetection or undetectable motion.
Indoor Unit
Switchbox
S
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
Indoor Unit
S
G
F
C
I
G
F
C
I
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N
R
L1
S
L2
Mp
N