14
23
3.
HOW
TO
INSTALL
THE
OUTDOOR
UNIT
3-1. Installing the Outdoor Unit
●
Use concrete or a similar material to create the base, and
ensure good drainage.
●
Ordinarily, ensure a base height of 5 cm or more. If a drain
pipe is used, or for use in cold-weather regions, ensure a
height of 15 cm or more at the feet on both sides of the unit.
(In this case, leave clearance below the unit for the drain
pipe, and to prevent freezing of drainage water in cold-
weather regions.)
●
See Fig. 3-1 for the anchor bolt dimensions.
●
Be sure to anchor the feet with anchor bolts (M10 or 3/8"). In
addition, use anchoring washers on the top side. (Use SUS
washers with nominal diameter of 10 or 3/8".) (Field supply)
13
160
200
108
122
13
160
208
370
13
450
412.5
20.5
18
25
20
(17
)
660
13
160
1500
980
160
Fig. 3-1
3-2. Drainage Work
Follow the procedure below to ensure adequate draining for the
outdoor unit.
●
For the drain port dimensions, see Fig. 3-1.
●
Ensure a base height of 15 cm or more at the feet on both
sides of the unit.
●
When using a drain pipe, install the drain socket (field
supply) onto the drain port. Seal the other drain port with the
rubber cap (field supply).
●
For details, refer to the instruction manual of the drain socket
(field supply).
●
After completing the installation work of the drain socket,
make sure that the water does not leak from any part of
connection.
3-3. Routing the Tubing and Wiring
●
The tubing and wiring can be extended out in 4 directions
(front, rear, right, and down):
●
The service valves are housed inside the unit. To access
them, remove the inspection panel. (To remove the
inspection panel, remove the 2 screws, then slide the panel
downward and pull it toward you.)
(1)
If the routing direction is through the front, rear, or right,
use a nipper or similar tool to cut out the knockout holes for
the inter-unit control wiring outlet, power wiring outlet, and
tubing outlet from the appropriate covers A and B.
When routing the wiring, be sure to attach each supplied
protection bushing to the edges around the wiring outlet
holes in order to protect the wiring from scratches by the
cutting burr.
(2)
If the routing direction is down, use a nipper or similar tool
to cut out the lower flange from cover A.
Fig. 3-2
NOTE
*
Protect the outdoor unit wiring with a conduit material or
supplied protection bushing to avoid damages by the edges of
knockout hole.
*
Use sealing putty to seal off the hole to prevent the dust and
insects from entering the wiring outlet holes and the tubing
outlet.
CAUTION
●
Route the tubing so that it does not contact the
compressor, panel, or other parts inside the unit.
Increased noise will result if the tubing contacts these
parts.
●
When routing the tubing, use a tube bender to bend the
tubes.
Power wiring outlet* Inter-unit control wiring outlet*
Cover A
Inspection panel
Cover B
Rear
Tubing outlet
Right
Front
Down
4-ø32
Drain port
Drain port
Air discharge
Unit: mm
Air intake
Anchor bolt (M10 or 3/8”)
Air intake
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4.
ELECTRICAL
WIRING
4-1.
General Precautions on Wiring
(1)
Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring closely
following the wiring diagram.
(2)
Provide a power outlet to be used exclusively for each
unit, and a power supply disconnect, circuit breaker and
earth leakage breaker for overcurrent protection should be
provided in the exclusive line.
(3)
To prevent possible hazards from insulation failure, the unit
must be grounded.
(4)
Each wiring connection must be done in accordance with
the wiring system diagram. Wrong wiring may cause the
unit to misoperate or become damaged.
(5)
Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6)
Unauthorized changes in the internal wiring can be very
dangerous. The manufacturer will accept no responsibility
for any damage or misoperation that occurs as a result of
such unauthorized changes.
(7)
Regulations on wire diameters differ from locality to
locality. For field wiring rules, please refer to your LOCAL
ELECTRICAL CODES before beginning. You must
ensure that installation complies with all relevant rules and
regulations.
(8)
To prevent malfunction of the air conditioner caused by
electrical noise, care must be taken when wiring as follows:
●
The remote control wiring and the inter-unit control
wiring should be wired apart from the inter-unit power
wiring.
●
Use shielded wires for inter-unit control wiring between
units and ground the shield on both sides.
(9)
If the power supply cord of this appliance is damaged,
it must be replaced by a repair shop appointed by the
manufacturer, because special purpose tools are required.
(10)
Using a waterproof conduit is recommended for outdoor
unit wiring to avoid damaging the wire and to prevent
accumulation of liquid inside the unit.
(11)
Protect the outdoor unit wiring with a conduit material
or supplied protection bushing to avoid damages by the
edges of knockout hole. If any openings occur between the
protection bushing and wiring, seal the opening entirely.
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