HITACHI SPLIT-UNIT AIR CONDITIONER
INSTALLATION MANUAL
Indoor Unit
Outdoor Unit
RAS-R10EX
RAC-R10EX
●
+ – Screwdriver
●
Measuring Tape
●
Knife
Saw
●
ø 65mm Power
●
Drill Allen Key ( 4mm)
●
Wrench (14, 17, 19, 22mm)
●
Gas Leakage
Detector
●
Pipe Cutter
●
Plastic Tape
●
Pliers
●
Flare Tool
●
Carefully read through the procedures of proper
installation before starting installation work.
●
The sales agent should inform customers regarding
the correct operation of installation.
Tools Needed For Installation Work
SAFETY PRECAUTION
●
Read the safety precautions carefully before operating the unit.
●
The contents of this section are vital to ensure safety. Please pay special attention to the following sign.
WARNING ........ Incorrect methods of installation may cause death or serious injury.
CAUTION ......... Improper installation may result in serious consequence.
Be sure that the unit operates in proper condition after installation. Explain to customer the proper way of operating
the unit as described in the user’s guide.
!
!
Air Exchanger And Exhaust Hose Installation
1
The air exchanger and exhaust function is included in this model. Please follow the installation
instructions when mounting.
FOR SERVICE PERSONNEL ONLY
<
I719: A
>
WARNING
!
●
Please request your sales agent or qualified technician to install your unit. Water leakage, short circuit or fire may
occur if you do the installation work yourself.
●
Please observe the instructions stated in the installation manual during the process of installation. Improper
installation may cause water leakage, electric shock and fire.
●
Make sure that the units are mounted at locations which are able to provide full support to the weight of the units.
If not, the units may collapse and impose danger.
●
Observe the rules and regulations of the electrical installation and the methods described in the installation manual
when dealing with the electrical work. Use wire which is specified for the air conditioner. A short circuit and fire
may occur due to the use of low quality wire or improper work.
●
Be sure to use the specified wire for connecting the indoor/outdoor units. Please ensure that the connections are
tight after the conductors of the wire are inserted into the terminals. Improper insertion and loose contact may
cause over-heating and fire.
●
Please use the specified components for installation work. Otherwise, the units may collapse or water leakage,
electric shock and fire may occur.
●
Do not mix any coolant other than R-22 into the cooling circulation path when mounting or shifting the unit. If it
is mixed with air, the high pressure in the circulation path will rise and this may result in broken copper pipes or
faults.
CAUTION
!
●
Be sure to use the earth line. Do not place earth line near gas or water pipes, lightning conductor and
the earth line of telephone. Improper earthing may cause electric shocks.
●
A circuit breaker should be installed depending on the mounting size of the unit. Without a circuit breaker, the
danger of electric shocks exists.
●
Do not install the unit near a location where there is flammable gas. The outdoor unit may
catch fire if flammable gas leaks around it.
●
Please ensure smooth flow of water when installing the drain hose.
above 100mm
❈
above 200mm
above 200mm
❈
above 100mm
❈
give clearance
as wide as possible
above 50mm
above 100mm
about 0.45m
above 300mm
must not bend
above 50mm when
installed on the
ceiling of balcony
above 200mm
2,300mm or more
4
5
3
6
Maximum pipe length 15m
Minimum pipe length 5m
above 100mm
1
2
THE CHOICE OF MOUNTING SITE
(Please note the following matters and obtain permission from customer before installation).
WARNING
!
●
The unit should be mounted at stable, non-vibratory location which
can provide full support to the unit.
WARNING
!
●
The outdoor unit must be mounted at a location which can sup-
port heavy weight. Otherwise, noise and vibration will increase.
CAUTION
!
●
No nearby heat source and no obstruction near the air outlet is
allowed.
●
The clearance distances from top, right and left are specified in
figure below.
●
The location must be convenient for water drainage and pipe
connection with the outdoor unit.
●
To avoid interference from noise please place the unit and its
remote controller at least 1m from the radio, television and inverter
type fluorescent lamp.
●
To avoid any error in signal transmission from the remote controller,
please put the controller far away from high-frequency machines
and high-power wireless systems.
●
The installation height of indoor unit must be 2.3m or more.
CAUTION
!
●
Do not expose the unit under direct sunshine or rain. Besides,
ventilation must be good and clear of obstruction.
●
The air blown out of the unit should not point directly to animals
or plants.
●
The clearances of the unit from top, left, right and front are specified
in figure below. At least 2 of the above sides must be open air.
●
Be sure that the hot air blown out of the unit and noise do not
disturb the neighbourhood.
●
Do not install at a location where there is flammable gas, steam,
oil and smoke.
●
The location must be convenient for water drainage.
●
Place the outdoor unit and its connection wire at least 1m away
from the antenna or signal line of television, radio or telephone.
This is to avoid noise interference.
INDOOR UNIT
Names of Indoor Components
Mounting Plate
Qty
No.
Item
The Length of Indoor
Unit Power Cord
Figure showing the Installation of Indoor and Outdoor Unit.
about 1.6m
about
0.9m
OUTDOOR UNIT
1
1
Purifying Filter
●
The difference in
height between
the indoor and
outdoor unit
should be kept
below 5m.
●
The connecting
pipe, no matter
big or small,
should all be
insulated with
insulation pipe
and then wrapped
with vinyl tape.
(The insulator will
deteriorate if it is
not wrapped with
tape).
The connection of in-
sulated drain hose.
Please use insulated
drain hose for the
indoor piping
(commercial product).
Be sure to
completely
seal any
gap with
putty.
Screw for holder of
Remote Controller
(3.1x16)
AAA Size Battery
Screw for Mounting
Plate
Direction of Piping
Dimension of Mounting
Stand of the outdoor unit
500
100
35
35
12
225
8
mounting stand
(unit : mm)
Holder for Remote
Controller
There are 4 directions
allowed, namely, horizontally
perpendicular to the unit,
vertically down from right,
horizontally out from right
and horizontally out to left.
Don’t form the piping
downward at the left of the
unit.
Remote Controller
Holder
2
5
3
1
4
2
5
2
6
1
7
1
8
1
9
20
Cut away shaded
portion, and finish
the edge of the
opening so that
there is no burr.
Connection
Horizontally
perpendicular
to the unit
1
Air Exchanger Filter
In case the pipe length is more than 8m, add refrigerant R22 at 10 gram
per every meter exceeds. However, pipe length shall not exceed 15m.
!
CAUTION
Binder
Qty
No.
Item
$
1
Left Horizontal
Pipe Connector
Left Backward
Pipe Connector
Right Connector
Right Downward
Pipe Connector
Right Horizontal
Pipe Connector
Left Downward
Pipe Connector
Right Horizontal
Pipe Connector
%
1
^
1
&
1
*
1
(
1
)
1
q
1
w
1
Ventilation pipe
0
1
Air Duct Filter
!
1
Insulation Sheet
@
1
Anti Insect Ventilate
Net
#
1
Rain Proof Ventilate
Protection Cap
e
1
Extension
Ventilation
Pipe
r
1
Outdoor Thermistor
Extension Wire
Do not alter the power cord.
Please install only with the customer’s consent
●
The air exchanger should not be operated under the following conditions:
(A)
When the air exchanger hose cannot be vented directly outside the room (mounting work specified for
the embedded ducting).
(B)
When there is a source of a questionable odor, smoke, or oily smoke in the vicinity of the opening of
the air exchanger hose, even if the mounting work directly vents the air exchanger hose outside the room.
●
The fresh air in should not be operated (only exhaust can be operated) under the following conditions:
(C) When there is space to vent the air exchanger hose between the internal and external walls, which leads
outside the room, even if the mounting work cannot directly vent the air exchanger hose outside the room
(conventional construction methods).
●
Please set the Air Exchanger Selection Switch according to the mounting configuration.
[Dimensions when Installing included Fittings]
Under the following conditions, the device can be installed with these fittings alone.
●
ø20 two way air exchange hose
Vented within 0.9m to the left and down or within 1.4m to the right and down.
Dimensions when installing the fitting for ø20 air exchanger hose
Within 1.4m
Within 1.4m
Within 0.9m
Within 0.9m
Backward piping
Vertically down from right
Horizontally piping from right
Backward piping from left
Vertically down from left
Horizontally piping from left
Remark
ø20 Air
Exchanger Hose
Net
When Air Exchanger cover
(HC-D55) is not using.
Extension
Pipe Connector
Part Name
Cap
Diagram Describing Backward Piping From Left
Diagram Describing Horizontally Piping From Right
Diagram Describing Vertically Down From Left
Air Exchanger Hose
Drain Hose
Refrigerating Pipe
Connecting Cable
Air Exchanger Hose
Refrigerating Pipe
Drain Hose
Air Exchanger Hose
Drain Hose
Refrigerating Pipe
Connecting Cable
