Hitachi P-AP160NA1 Installation And Operation Manual page 12

indoor unit installation
Adjusting of Space Between Indoor Units and False

Ceiling Opening
- Adjust the indoor unit to the correct position while chec-
king with the pattern for installation.
Checking Scale for Dimension of
Opening
For ceiling already completed with panels.

Attach this side of the scale to the in-
ner side of the opening of the ceiling
indoor Unit
Attach this side of
the scale to the outer
side of the unit
Checking Scale
Check the dimension
of opening at each
side of the unit
Ceiling not completed with panels yet.

Dimension for Opening
Suspension Bolt
Surface of Ceiling
- Tighten the nuts of the suspension brackets after the ad-
justment is completed. Apply LOCK-TiGHT paint to the
bolts and nuts in order to prevent them from loosening. if
not done, abnormal noises or sounds may occur and the
indoor unit may come loose.
8
Pattern Board for installation
Packing (Corrugated Board)
Attach this side of the scale to the
lower side of the unit
indoor Unit
Ceiling panel
Checking Scale
Check the height of
the ceiling at each
corner of the unit
Pattern Paper
for installation
Dimension for Opening
Unit
Screw (m6)
Pattern Board for installation
PmmL0223A rev.0 - 05/2012 - P5415035
Sensing area for the motion sensor (only for air panel

model P-AP160NAE)
The sensing area for the motion sensor is shown in the figure
below when applying the motion sensor with the air panel.
motion sensor
Attach this side
of the scale to
the ceiling Panel
installation Height of indoor Unit h (m)
Sensing Area for motion Sensor Øa (m)
motion Detection
N O T E
The motion sensor may detect as absence in the case that the
indoor unit with the motion sensor is installed to a high ceiling
(higher than 4m) even if someone is in a room.
Ø a
From floor surface
0.8m
2.7 3.2
Approx. 7.0 Approx. 8.8
Human motion
h