Screw for Mounting Plate
( 4 . 1 x 3 2 )
HITACHI SPLIT-UNIT AIR CONDITIONER
INSTALLATION MANUAL
●
+ – Screwdriver
●
Measuring Tape
●
Knife
●
Saw
●
ø 65mm Power Drill
●
Allen Key ( 4mm)
●
Wrench (14, 17, 19, 22mm)
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Gas Leakage Detector
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Pipe Cutter
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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.
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 speci
Þ
ed in
Þ
gure 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
ß
uorescent 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 in a
non public area.
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
speci
Þ
ed in
Þ
gure below. At least three 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
ß
ammable 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.
IN
D
O
O
R
U
N
IT
Names of Indoor Components
Direction of Piping
Figure showing the Installation of Indoor and
Outdoor Unit.
●
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 plastic
tape. (The insulator will
deteriorate if it is not
wrapped with tape).
The connection of insulated
drain hose.
Please use insulated drain
hose for the indoor piping
(commercial product).
O
U
T
D
O
O
R
U
N
IT
Be sure to
completely
seal any
gap with
putty.
T h e r e a r e 4 d i r e c t i o n s
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.
Installation of Mounting Plate, Wall Penetration and Installation of Protection Pipe
1
CAUTION
●
The draining of the water container inside the indoor unit can be done from the left.
Therefore the mounting plate must be
Þ
xed horizontally or slightly tilted towards the
side of drain hose. Otherwise, condensed water may over
ß
ow the water container.
Direct Mounting On The Wall
●
Please use hidden beams in the wall to hold the mounting plate.
Wall Penetration and Installation of Protection Pipe
●
Drill a ø 65mm hole on
wall which is slightly tilted
towards the outdoor side.
Drill the wall at a small angle.
●
Cut the protection pipe
a c c o r d i n g t o t h e w a l l
thickness.
●
Empty gap in the sleeve
of protection pipe should
be completely sealed with
putty to avoid dripping of
rain water into the room.
Installation of the Indoor Unit
2
VERTICALLY DOWNWARD PIPING
Preparation
●
Connect connecting cord.
●
Pull out the pipe, connecting cord and drain hose.
Installation
●
The upper part of the indoor unit is hanged on the mounting plate.
●
The projection at the lower part of the indoor unit is hooked onto the mounting plate.
Please pull the lower
part of the indoor unit
outwards to check if the
unit is hooked onto the
mounting plate. Improper
installation may cause
vibration and noise.
CAUTION
HORIZONTAL PIPING
Preparation
Change of Drain Hose and Installation Procedures.
●
Exchange the location of drain hose and drain cap during horizontal piping as shown
in
Þ
gure below. Be sure to plug in the drain hose until the insulating material folds
upon itself.
●
Please use pliers to pull out the drain cap.
(This is an easier way to remove the drain cap).
Horizontal & Downward Piping – Making Openings
●
During horizontal or downward piping, use a knife to cut
openings as shown in
Þ
gure. Then smoothen the edges
of openings with a
Þ
le.
CAUTION
●
The rubber strap used for
Þ
xing the insulator should
not be tied with great force.
Otherwise, this will damage
heat insulation and causes
water condensation.
CAUTION
●
Please
Þ
x in the plastic
core after
ß
aring to avoid
plastic chips entering the
pipes.
CAUTION
You are free to choose the side (left or right) for the installation of drain
hose. Please ensure the smooth
ß
ow of condensed water of the indoor
unit during installation. (Carelessness may result in water leakage.)
CAUTION
Be sure that the
drain hose is not
loosely connected
or bent.
<
IA918: A
>
Be sure that the wire is not
in contact with any metal
in the wall. Please use
the protection pipe as wire
passing through the hollow
part of the wall so as to
prevent the possibility of
damaged by mouse.
CAUTION
Installation of Drain Hose
3
IN
D
O
O
R
U
N
IT
Screw for Remote
Controller Holder
( 3 . 1 x 1 6 )
AAA Size Battery
Remote Controller Holder
Mounting Plate
Qty
No.
Component’s Name
1
6
1
2
2
Remote Controller
Air Purifying Filter
!
!
!
!
!
!
!
!
!
!
!
!
!
●
Remove the cap for drain hose installation
CAUTION
Condensed water may leak out if not inserted properly.
!
●
Transform the piping while holding down the lower
portion of pipe-support by hand.
Dimension of Mounting Stand
of the outdoor unit
(unit : mm)
Indoor Unit
Outdoor Unit
RAK-60PPA
RAC-60WPA
1
2
3
4
5
6
7
1
2
WARNING
!
CAUTION
!
●
A circuit breaker or fuse (20A time delay) must be installed. Without a circuit breaker or fuse the danger of electric shock
exists.
A main switch with a contact gap of more than 3mm has to be installed in the power supply line to the outdoor unit.
●
Do not install the unit near a location where there is
ß
ammable gas. The outdoor unit may
catch
Þ
re if
ß
ammable gas leaks around it.
●
Please ensure smooth
ß
ow of water when installing the drain hose.
●
Piping shall be suitable supported with a maximum spacing of 1m between the supports.
●
Please request your sales agent or quali
Þ
ed technician to install your unit. Water leakage, short circuit or
Þ
re 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
Þ
re.
●
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 power cables approved by the authorities of your country.
●
Be sure to use the speci
Þ
ed wire for connecting the indoor and 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
Þ
re.
●
Please use the speci
Þ
ed components for installation work. Otherwise, the units may collapse or water leakage, electric shock
and
Þ
re may occur.
●
Be sure to use the speci
Þ
ed piping set for R410A. Otherwise, this may result in broken copper pipes or faults.
●
When installing or removing an air conditioner, do not allow air or moisture to remain in the refrigeration cycle. Otherwise,
pressure in the refrigeration cycle may become abnormally high so that a rupture may be caused.
●
Be sure to ventilate fully if a refrigerant gas leak while at work. If the refrigerant gas comes into contact with
Þ
re, a poisonous
gas may occur.
●
After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas
leaks into the room, coming into contact with
Þ
re in the fan-driven heater, space heater, etc., a poisonous gas may occur.
●
Unauthorized modi
Þ
cations to the air conditioner may be dangerous. If a breakdown occurs please call a quali
Þ
ed air
conditioner technician or electrician. Improper repairs may result in water leakage, electric shock and
Þ
re, etc.
3
Bush
Names of Outdoor Components
Qty
No.
Item
Drain Pipe
1
8
9
Bush
1
10
Procedures of Installation and Precautions
●
Procedures to
Þ
x the mounting plate.
1. Drill holes on wall.
2.Fix the mounting plate on
(As shown below)
wall with 4.1 x 32 screw
(As shown in
Þ
gure below)
●
Procedures to
Þ
x the holder of remote control.
1. Drill holes on wall.
(As shown below)
Plug
Connecting
cords, pipe and
drain hose must
be laid together
with Vinyl tape.
Mounting plate
Drain Hose
Protection Pipe
Refrigerating
Pipe
Connecting
Cord
Lift the body
of the unit
upwards and
then force it
downwards.
Mounting plate
Projection
Hook
INSTALLATION OF REFRIGERATING PIPES AFTER CONNECTION
●
The refrigerating pipes should be adjusted to
Þ
t
into the hole on the wall and then ready for further
connection.
●
The terminals of 2 connected pipes must be covered
with insulator used for terminal connection. Then the
pipes are wrapped with insulation pipe.
●
Connect the connecting cord after removing electrical
cover. (Refer to “CONNECTION OF POWER CORD”)
●
After adjustment,
Þ
t the connecting cord and pipes
into the space available under the indoor unit. Use
holder to hold them tight.
Drain hose
Connecting cord
Pipe
THE CONNECTION OF REFRIGERATING PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes
●
The refrigerating pipes and connecting cord
transform and are attached.
●
The end of the refrigerating pipes are at locations
marked with “
” symbol.
Installation
Hang the Indoor unit onto the mounting plate. Use the temporary
stand at the back of the Indoor unit to push its lower part
15cm forwards.
●
Place the drain hose through the hole on the wall.
●
Wrap the refrigerating pipes with insulation pipe after
connecting refrigerating pipe.
●
Connect the connecting cord after removing electrical cover.
(Refer to “Connection of Power Cord”)
●
After adjustment, the connecting cord and refrigerating pipes
are placed into the space available under the Indoor unit.
●
The projection of Indoor unit must hook to the mounting plate.
Heat insulation
pipe
Connecting cord
Refrigerating pipe
Protection pipe
Pull this to the front
during the connection
of refrigerating pipes
to ease task.
Drain hose
Connecting cord
Connected
section
