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Hitachi RAD-50DH7A Installation Manual page 3

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5
Pipe Connection
After connecting the refrigerant piping, seal the refrigerant pipes by using the factorysupplied insulation material.
6
Checking of drawing drain hose
7
Checking procedure after installation
7.1
7.2
Fig. 7-1.
Fig. 7-1
7.3
7.4
7.5
7.6
8
Installation of wired remote controller
7 Remote
Controller
Wiring installation illustrations
Wall recessed wiring installation (Supplied)
When connecting the wires via the wall's recessed slot;
1. Fix the bottom casing to the wall by provided screw.
2. Assemble the top casing to the fixed bottom casing.
(Refer to the illustration below for detail installation)
8
Wall
Lead wires (3 strands) are
mounting
inserted through and
screws
fastened via a rib-clip
(2 pieces)
Location of wall
mounting screw
Lead wires
Wires
Lead wires
connector
connector
Wires
<
>
IA378: A
CAUTION
!
G
The rubber strap used for
fixing the insulator should
not be tied with great force.
Otherwise, this will damage
heat insulation and causes
water condensation.
Pipe
Rubber strap tied with great force
Fig. 7-2
Fig. 7-2.
After unscrew the bond,
put the wired remote
control cord and fix
Wired remote
back with screw.
controller
Inside top wiring installation (Alternative)
When the wires to be connected from the inside top portion of top casing;
1. Break off a perforated aperture located at the top portion of the bottom
casing by nipper. Smoothen the aperture by cutter.
2. Fix the bottom casing to the wall by provided screw.
3. Connect the wires to the lead wires connector.
4. Mount the wires through the provided slot on top casing.
5. Assemble the top casing to the fixed bottom casing
(Refer to the illustration below for detail installation)
Wires
Lead wires
connector
Lead wires
(3 strands)
9
Installation of wireless remote controller (optional)
The remote controller can be placed in its holder which is
fixed on wall or beam.
To operate the remote controller at its holder, please
ensure that the unit can receive signal transmitted from
the controller at the place where the holder is to be fixed.
The unit will beep when signal is
received from the remote controller.
The signal transmission is weaken
by the fluorescent light. Therefore,
during the installation of the
remote control holder, please
switch on the light, even during day
time, to determine the mounting
5
location of the holder.
Plug
10
Setting of external static-pressure switch
Setting
of
External
Pressure
Remove lid of electric box and
set the "STATIC PRESSURE"
switch.
How To Connect The Optional Parts
11
(RAC Adapter, Weekly Timer, Wired Remote Control)
Weekly timer/
Wired remote controller
Connecting Cable
[For all optional part, please refer catalog for part number]
As for connecting to H-Link, a separately purchased RAC Adapter is required.
To install the wiring the electrical box cover must be opened.
G
Connect the connector of RAC adapter to CN1101.
G
Assemble back the cover of electrical box.
G
Please refer to the respective user manual of RAC Adapter for further details.
G
Please be careful not to damage lead wires by edge of plate when connecting the optional parts.
G
WEEKLY TIMER / WIRED REMOTE CONTROLLER
[For all optional part, please refer catalog for part number]
Connection to the electrical box:
Remove the cover of electrical box.
G
Connect the connector of Weekly Timer/wired remote controller to CN1102.
G
Assemble back the cover of electrical box.
G
Please refer to the respective user manual of Weekly Timer/wired remote controller for further details.
G
Please be careful not to damage lead wires by edge of plate when connecting the optional parts.
G
12
Protection of lead wire
Wrap aluminium tape around PVC tube between electric box and indoor unit (cord band).
13
Operation test
The controller must
be hooked onto the
hook at the lower
part of the holder.
Push in the remote
controller in the
direction as shown
in figure below.
Remote
4
Controller
AAA
6
size
battery
After unscrew the bond,
put the display panel cord
and fix again with screw.
Display panel cord
RAC Adapter
Connection Cord
Binder
H-LINK
Screw (2 pieces)
Holder for
Remote Controller

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