
( 450 (17-11/16))
Min. A
Min. A
Min. 2-3/4(70)
Min. 70 (2-3/4)
Electrical Box
Service Access Door
2-Suspension Bolt
(Field-Supplied)
Upper Side
Bottom Side
M10 or W3/8
Unit: mm (inch)
100
(3-15/16)
4.2
Initial
Check
●
Install the
Switch Box
with a proper clearance
around
it
for
maintenance
working
space,
as
shown
in
Figure
4.1
below.
Size
Model
A
HCHS-N06X
300
(11-13/16)
HCHS-N10X
400
(15-3/4)
Figure
4.1
Service
Space
●
Check to ensure that the ceiling is sufficiently
strong to sustain the
Switch Box
. If the ceiling is
weak, abnormal sound and vibration may occur.
● When
the
electronic
expansion
valve
in
the
Switch Box
is activated, a change in the
typical
refrigerant flow sounds may be heard or
perceived from the
Switch Box
. Take the
following
action to minimize the sound.
(A) Install the
Switch Box
inside the ceiling. As for
the
ceiling
material,
select
a
material
like
a
plasterboard
at
least
9mm
(1
inch),
which
minimizes
operation
sound.
(B) Do not install the
Switch Box
in a place near
bedrooms
or
hospital
rooms.
● When
the
operation
is
changed
to
cooling/
heating mode, a change in the typical refrigerant
flow sounds may be heard or perceived from the
Switch Box .
Therefore, install the
Switch Box
in the ceiling of
the corridor so that the refrigerant flowing sound
may not be heard in the room.
●
Do not install the
Switch Box
in a hot or humid
place, such as a kitchen, to prevent
condensation on the outer surface of the
Switch Box .
When installing the
Switch Box
in such
places, apply additional insulation.
●
Pay attention to the following points when the
Switch Box
is installed in a hospital
or other
facility where there are electronic
waves from
medical equipment.
(A) Do not install the
Switch Box
where the
electromagnetic
wave
is
directly
radiated
to
the
electrical
box
or
communication
cable.
(B) Install the
Switch Box
and components as far
as
practicable
or
at
least
3m
(10
ft)
from
the
electromagnetic
wave
radiator.
(C)
Install
a
noise
filte
when
the
power
supply
emits
harmful
noises.
● Ensure
the
installation
place
is
convenient
for
the
refrigerant
piping
or
electrical
wiring
connection.
● Do
not
drill,
or
drive
screws
into
the
cabinet.
Use
only
mounting
points
provided.
5