Hitachi RAS-X18HAK Installation Manual

HITACHI SPLIT-UNIT AIR CONDITIONER

INSTALLATION MANUAL

Indoor Unit Outdoor Unit
+ RAC-X18HAK
RAS-X18HAK

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 operation and maintenance of the unit
as described in the user's guide. Ask customers to keep this installation manual together with the instruction manual.
1 Installation of Mounting Plate, Wall Penetration and Installation of Protection Pipe
CAUITON
The drain hose can be installed from the lefe or right of the indoor unit.When installing
the indoor unit,the mounting board must be fixed horizontally or slightly tilted down
towards the side of drain hose.If it is tilted above the side of the drain hose,condensed
water may overflow.
Direct Mounting On The Wall
Please use hidden beams in the wall to hold the mounting plate.
Wall hole
6
Procedures of Installation and Precautions
Procedures to fix the mounting plate.
1. Drill holes on wall.
(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. Indoor
Drill the wall at a small angle.
Cut the protection pipe
according to the wall
thickness.
Empty gap in the sleeve of Seal with
WALL
putty
protection pipe should be
Sleeve of
Protection
protection
completely sealed with putty
pipe
pipe
to avoid dripping of rain
water into the room.
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: A
E4340B
Carefully read through the procedures of proper
installation before starting installation work.
The sales agent should inform customers regarding
the correct operation of installation.
This sign indicates prohibition.
2 Installation of the Indoor Unit
VERTICALLY DOWNWARD PIPING
Preparation
Connect power cord.
Pull out the pipe, power 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.
Mounting Plate
Coolant pipe
Wall hole
Protection
Pipe
Drain Hose
Power Cord
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 figure 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).
Drain cap
Remove the cap for drain hose installation
Drain cap
Please insert
until here
CAUITON
HORIZONTAL & DOWNWARD PIPING – MAKING OPENINGS
Outdoor
CAUITON
During horizontal or downward piping, use a knife to cut
2~5mm
openings as shown in figure. Then smoothen the edges
Be sure that the wire is not
of openings with a file.
in contact with any metal
in the wall. Please use the
Pipe
protection pipe as wire
support
passing through the hollow
part of the wall so as to
prevent the possibility of
Pull up the pipe after
bending downward
damaged by mouse.
THE CHOICE OF MOUNTING SITE
WARNING
The unit should be mounted at stable, non-vibratory location which can provide
full support to the unit.
No nearby heat source and no obstruction near the air outlet is allowed.
The installation height should be at least 2.3m or more from the floor.
Names of Indoor Components
No Component's Name Qty
Mounting Plate
1
1
Screw for Mounting Plate
10
2
( 4 . 1 x 3 2 )
AAA Size Battery
2
3
Remote Controller
1
4
Bush
2
5
Drain pipe
1
6
Heat insulating materials
7
1
Items & are included in the
5 6
package of the outdoor unit.
Dimension of Mounting Stand
of the outdoor unit
(unit : mm)
500
792
Power line, pipe and
drain hose must be
tied together with
plastic tape.
CAUITON
Please pull the lower part
of the indoor
Mounting
Lift the body
Plate outwards to check if the
of the unit
unit is hooked onto the
upwards and
Projection
then force mounting plate. Improper
it downwards.
installation may cause
vibration and noise.
Hook
Drain hose
Drain hose
Please insert
until here
Condensed water may leak out if not inserted properly.
Transform the piping while holding down the lower portion
of pipe-support by hand.
(Please note the following matters and obtain permission from customer before installation).
The air blown out of the unit should not point directly to animals or plants.
Do not install at a location where there is flammable gas, steam, oil and smoke.
Figure showing the Installation
The Length of Indoor Unit
Power Cord of Indoor and Outdoor Unit.
about
0.9m
about 1.6m
Do not alter the power cord.
Cut away shaded
portion, and finish
the edge of the
opening so that
there is no burr.
Direction of Piping
Horizontally
backward
Piping configuration may be
in six different directions:
direct rear piping, left or right
downward piping and left
or right sideways piping.
200mm
Above 50 mm when installed
on the ceiling of balcony
200mm
Heating efficiency will be
enhanced if the space below the
outdoor unit is closed so that
no air passes through.
For outdoor unit installation, allow at least
(Procure the material locally.)
2 sides of space around the unit to ensure
ventilation flue.
INSTALLATION OF COOLANT PIPES AFTER CONNECTION
The coolant 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.
Connect the power cord.
After adjustment, fit the power cord and pipes into
the space available under the indoor unit.
unit
Pipe
THE CONNECTION OF COOLANT PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Coolant Pipes
Coolant pipes and power cord must be tied together.
The front part of the coolant pipes are at locations
marked with " " symbol.
Match the end of the refrigerating pipes with the
locations marked with " V " symbol.
Please bend at a small
radius to form an arc
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.
Insulate the connecting portion of coolant pipe with insulator.
Connect the power cord.
After adjustment, the power cord and coolant 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
Coolant pipes
of coolant pipes to
Power cord ease task.
3 Installation of Drain Hose
Drain
Bending Stagment
upwards water
You are free to choose the side (left or right) for the installation of drain
hose. Please ensure the smooth flow of condensed water of the indoor
CAUTION
unit during installation. (Carelessness may result in water leakage.)
50mm
Drain hose
Pipe
Power cord
CAUITON
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
CAUITON
Please fix in the plastic
core after flaring to avoid
plastic chips entering the
pipes.
below
5mm
Temporary stand
Projection
Hook
about 15cm
Protection
pipe
Drain Connected
hose terminals
Power cord
of coolant
pipes
CAUITON
Be sure that the
drain hose is not
loosely connected
Stagment
or bent.
water