Hitachi RAS-VX13CET Installation Manual

FOR SERVICE PERSONNEL ONLY
HITACHI SPLIT-UNIT AIR CONDITIONER
INSTALLATION MANUAL
Indoor Unit Outdoor Unit
RAS-VX13CET RAC-VX13CET

SAFETY PRECAUTION

Read the safety precautions carefully before operating the unit.
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The contents of this section are vital to ensure safety. Please pay special attention to the following sign.
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! 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.
!
Please request your sales agent or qualifi ed technician to install your unit. Water leakage, short circuit or fi 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 fi 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
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dealing with the electrical work. Use power cables approved by the authorities of your country.
Be sure to use the specifi 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 fi re.
Please use the specifi ed components for installation work. Otherwise, the units may collapse or water leakage, electric shock
●
and fi re may occur.
Be sure to use the specifi 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,
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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 fi re, a poisonous
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gas may occur.
After completion of installation work, check to make sure that there is no refrigeration gas leakage. If the refrigerant gas
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leaks into the room, coming into contact with fi re in the fan-driven heater, space heater, etc., a poisonous gas may occur.
Unauthorized modifi cations to the air conditioner may be dangerous. If a breakdown occurs please call a qualifi ed air
●
conditioner technician or electrician. Improper repairs may result in water leakage, electric shock and fi re, etc.
!
A circuit breaker or fuse (13A) must be installed. Without a circuit breaker or fuse the danger of electric
●
shock exists.
The external switch shall be incorporated to completely disconnect from power supply. It should disconnect all poles, and a
contact separation of at least 3mm must be present.
Do not install the unit near a location where there is fl ammable gas. The outdoor unit may catch fi re if
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fl ammable gas leaks around it.
Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist fl ows to the indoor unit. The oil
●
will deposit on the heat exchanger, thereby reducing the indoor unit performance and may deform and in the worst case,
break the plastic parts of the indoor unit.
Please ensure smooth fl ow of water when installing the drain hose.
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Piping shall be suitable supported with a maximum spacing of 1m between the supports.
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1 Installation of Hanger, Wall Penetration and Installation of Protection Pipe
CAUTION
!
● The draining of the water container inside the indoor unit can be done from the left.
Therefore the mounting plate must be fi xed horizontally or slightly tilted towards the
side of drain hose. Otherwise, condensed water may overfl ow the water container.
Direct Mounting On The Wall
● Please use hidden beams in the wall to hold the mounting plate.
Procedures of Installation and Precautions
● Procedures to fi x the mounting plate.
1. Drill holes on wall. 2. Push plug into the holes.
(As shown below) (As shown below)
● Procedures to fi x the holder of remote control.
1. Drill holes on wall. 2. Push plug into the holes.
(As shown below) (As shown below)
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
according to the wall
thickness.
● Empty gap in the sleeve
of protection pipe should
be completely sealed with
putty to avoid dripping of
rain water into the room.
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IA1265: B
INS RAS-VX13CET (EN1) 1 INS RAS-VX13CET (EN1) 1
Carefully read through the procedures of proper
●
installation before starting installation work.
The sales agent should inform customers regarding
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the correct operation of installation.
Tools Needed For Installation Work
+ –
Screwdriver Measuring Tape
● ● ●
Saw Pipe Cutter Hexagonal Wrench Key (
● ● ●
Power Drill (ø 65mm ~ ø 80mm) Vacuum Pump
● ●
Pliers or Wrench Torque Wrench
● ●
Pump Adaptor Flare Tool Gas Leakage Detector
● ●
● Manifold Valve ● Charge Hose ● Reammer
WARNING
CAUTION
2 Installation of the Indoor Unit
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.
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The projection at the lower part of the indoor unit is hooked onto the mounting plate.
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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 fi gure below. Be sure to plug in the drain hose until the insulating material folds
upon itself.
Please use pliers to pull
●
3. Fix the mounting plate on wall
out the drain cap.
with 4.1 x 32 screw
(This is an easier way to
(As shown in fi gure below)
remove the drain cap).
● Remove the cap for
drain hose installation
WARNING
!
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.
Unless it seals completely,
any air with high humidity
!
flows from outdoor and
dew may drop.
CAUTION
THE CHOICE OF MOUNTING SITE
WARNING
!
The unit should be mounted at stable, non-vibratory location
●
which can provide full support to the unit.
CAUTION
!
No nearby heat source and no obstruction near the air outlet is
●
allowed.
The clearance distances from top, right and left are specifi ed in
●
fi gure below.
Knife
The location must be convenient for water drainage and pipe
●
connection with the outdoor unit.
4mm)
● To avoid interference from noise please place the unit and its
remote controller at least 1m from the radio, television and inverter
Vacuum
●
type fl uorescent lamp.
To avoid any error in signal transmission from the remote controller,
●
please put the controller far away from high-frequency machines
● File
and high-power wireless systems.
The installation height of indoor unit must be 2.3m or more.
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Names of Indoor Components
No. Component's Name Qty
Mounting Plate
1
1
Screw for Mounting Plate
6
2
( 4 . 1 x 3 2 )
Holder for Remote
Controller
1
3
AAA Size Battery
2
4
Screw for holder of
Remote Controller
2
5
( 3 . 1 x 1 6 )
Remote Controller
6 1
Purifying Filter
2
7
CAUTION
!
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.
Condensed water
may leak out if not
inserted properly.
(Please note the following matters and obtain permission from customer before installation).
!
The outdoor unit must be mounted at a location which can support
●
heavy weight. Otherwise, noise and vibration will increase.
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 specifi ed
●
in fi 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
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disturb the neighbourhood.
Do not install at a location where there is fl ammable gas, steam,
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oil and smoke.
The location must be convenient for water drainage.
●
Place the outdoor unit and its connection wire at least 1m away
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from the antenna or signal line of television, radio or telephone.
This is to avoid noise interference.
Do not install outdoor unit facing strong wind direction. It may
●
damage the fan motor.
Do not install the outdoor unit in a place where small animals may
●
build their nests. If small animal goes inside the unit and touches
Direction of Piping
the electrical parts, failure of the unit, smoke or fi re may be caused.
Request your customer to keep the surrounding of the unit is clean.
Figure showing the Installation of Indoor and Outdoor Unit.
T h e r e a r e 6 d i r e c t i o n s
allowed, namely, horizontally
perpendicular to the unit,
Be sure to
vertically down from right,
completely
horizontally out from right, seal any gap.
h o r i z o n t a l l y o u t t o l e f t ,
horizontally out to right,
vertically down from left.
Dimension of Mounting Stand
of the outdoor unit
(unit : mm)
INSTALLATION OF REFRIGERATING PIPES AFTER CONNECTION
● The refrigerating pipes should be adjusted to fit
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, fi t the connecting cord and pipes
into the space available under the indoor unit.
THE CONNECTION OF REFRIGERATING PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes
The refrigerating pipes and connecting cord
●
arrangement are attached.
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
Pull this to the front
during the connection
Connecting of refrigerating pipes
cord
to ease task.
Refrigerating pipe
3
Installation of Drain Hose
You are free to choose the side (left or right) for the installation of drain
!
hose. Please ensure the smooth fl ow of condensed water of the Indoor
CAUTION
unit during installation. (Carelessness may result in water leakage.)
WARNING
CAUTION
!
The refrigerant piping
should be insulated with the
enclosed insulation pipe. (If
the insulator is insuffi cient,
please use commercial
products).
The difference in height
●
between the indoor and
outdoor unit should be
kept below 10m.
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 insulated
drain hose.
Please use insulated drain
hose for the indoor piping
(commercial product).
CAUTION
!
● The rubber strap used for
fi xing the insulator should
not be tied with great force.
Otherwise, this will damage
heat insulation and causes
water condensation.
CAUTION
!
● Please fi x in the plastic core
after fl aring to avoid copper
chips entering the pipes.
CAUTION
!
Be sure that the
drain hose is not
loosely connected
or bend.
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