Suspension Bolt
(Field-Supplied)
Nut (Field-Supplied)
Washer with Insulation
(Field-Supplied)
Suspension Bracket
(Attached Indoor Unit)
Washer (Field-Supplied)
Double-Nut
(Field-Supplied)
(1-3/16 to 1-15/16 inch)
30 to 50mm
Suspension Bolt
Suspension Bracket
(Four Places)
4.4
Installation
Figure
4.4
Suspension
Figure
4.5
Hanging
Method
4.4.2 Mounting and Hanging the
Switch Box
(1) Place
nuts
and
washers
onto
the
suspension
bolts before installing the
Switch Box.
NOTE:
Make sure to use washers for installing the
suspension
bolts
t
o the suspension
brackets.
Install the washer with the insulation side
facing down for suspended installation
applications. This way, the washers
themselves remain in position on the
suspension bolts during the installation
phase.
Field-Supplied
Parts
* Suspension
Bolt:
4-M10
or
W3/8
* Nut:
12-M10
or
W3/8
* Washer:
4-M10
or
W3/8
* Washer
with
Insulation:
4-M10
or
W3/8
(2)
Hanging the
Switch Box
(a)
Hang the
Switch Box
by putting hands on
the
bottom of the cabinet.
(b)
(c)
Insert the suspension bolt into the groove
part of the suspension bracket as shown
in Figure 4.5. Ensure that the washers
are correctly affixed to the suspension
bracket.
(d)
Keep the
Switch Box
level to the ceiling
surface. If the
Switch Box
is not level, a
malfunction may occur.
(e)
Tighten the nuts of the suspension
bolt
with the suspension bracket after
adjustment is completed.
Adhesive must be applied to the nuts in
order to prevent them from loosening.
4.4.1
Marking
of
the
Positions
of
the
Suspension
Bolts
and
Wiring
Connections
(1) Mark
the
positions
of
the
suspension
bolts,
refrigerant
piping
connections
and
wiring
connection.
(2) Installation
dimensions
are
shown
in
Figure
2.1
and
2.2.
After the hanging work, the piping and
wiring connection work is required inside
the ceiling in the gap between the roof
and
ceiling so it is not visible.
Therefore,
determine the drawing direction of the
pipe
after selecting the installation location
of
the
Switch Box
. Before doing the hanging
work, carry out the piping and wiring work
up to the connecting positions.
10
Summary of Contents for HCHM-N04X
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