Hitachi RAS-14KH2 - Manual

above 50mm
above 100mm
above 0.45m
above 300mm must not bend
above 100mm
2,300mm or more
1
2
4 5
3
Maximum pipe length 15m Minimum pipe length 5m
above 200mm
above 700mm
above 200mm
above 50mm when
installed on the
ceiling of balcony ( )
above 100mm
above 100mm
give clearance as
wide as possible
Plug
6
SPLIT UNIT AIR CONDITIONER
INSTALLATION MANUAL
Indoor Unit Outdoor Unit
RAS-14KH2 RAC-14KH2
● + – Screwdriver ● Measuring Tape ● Knife
● Saw ● ø 65mm Power Drill ● Hexagonal Wrench
Key ( 4mm) ● Wrench (14, 17, 22mm) ● Gas
Leakage Detector ● Pipe Cutter ● Putty ● Vinyl
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.
!
!
WARNING !
CAUTION !
● A circuit breaker or fuse 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 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.
● Piping shall be suitable supported with a maximum spacing of 1m between the supports.
● 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 power cables approved by the authorities of your country.
● Be sure to use the specified 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 fire.
● Please use the specified components for installation work. Otherwise, the units may collapse or water leakage, electric shock
and fire may occur.
● Be sure to use the specified 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 fire, 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 fire in the fan-driven heater, space heater, etc., a poisonous gas may occur.
● Unauthorized modifications to the air conditioner may be dangerous. If a breakdown occurs please call a qualified air conditioner
technician or electrician. Improper repairs may result in water leakage, electric shock and fire, etc.
FOR SERVICE PERSONNEL ONLY 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 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 specified in
figure below. At least 3 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 connecting cord at least 1m away 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.
INDOOR UNIT
Names of Indoor Components
Hanger
Qty No. Item
The Length of Indoor Unit
Connecting Cord
Figure showing the Installation
of Indoor and Outdoor Unit.
OUTDOOR UNIT
1 1
Screw for holder of
Remote Controller
( 3 . 1 x 1 6 )
AAA Size Battery
Direction of Piping
Dimension of Mounting Stand
of the Outdoor unit
(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.
( 4 . 1 x 3 2 )
Remote Controller
Purifying Filter
2 6
3 1
4 2
5 2
6
7
9
1
0
1
● The difference in height
between the indoor and
outdoor unit should be
kept max 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 insulated
drain hose.
Please use insulated drain
hose for the indoor piping
(commercial product).
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the
insulator is insufficient,
please use commersial
products).
inner diameter ø 16mm
Be sure to
completely
seal any
gap with
putty.
Screw for Hanger
2
Bush
Names of Outdoor Components
Qty No. Item
!
Drain Pipe
1
0.8m 1.5m
Connection
Horizontally
perpendicular
to the unit
57
12
35
124 500
320
10
20
(10)
340
mounting stand
! CAUTION
• The installation height
of indoor unit must be
2.3m or more in a non
public area.
Installation of Hanger, 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 hanger must be fixed horizontally or slightly tilted towards the side of
drain hose. Otherwise, condensed water may overflow the water container.
Direct Mounting On The Wall
● Please use hidden beams in the wall to hold the hanger.
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.
Procedures of Installation and Precautions
● Procedures to fix the hanger.
1. Drill holes on wall. 2. Push plug into the holes. 3. Fix the hanger on wall
(As shown below) (As shown below) with 4.1 x 32 screw
(As shown in figure below)
● Procedures to fix the holder of remote control.
1. Drill holes on wall. 2. Push plug into the holes.
(As shown below) (As shown below)
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 hanger.
● The projection at the lower part of the Indoor unit is hooked onto the hanger.
Please pull the lower part of
the Indoor unit outwards to
check if the unit is hooked
onto the hanger. 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
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).
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, fit the connecting cord and pipes
into the space available under the indoor unit. Use
holder to hold them tight.
! CAUTION
● 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.
● Holder can be attached at the either of 2 places.
Please select the easier position.
THE CONNECTION OF REFRIGERATING PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes ! CAUTION
● Please fix in the plastic core
after flaring 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 flow 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 bend.
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
any dew may drop.
! WARNING
● The refrigerating pipes and connecting cord
transform and are attached.
● The end of the refrigerating pipes are at locations
marked with “
” symbol.
Installation of Drain Hose 3
Installation
Hang the Indoor unit onto the hanger. 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 hanger.
INDOOR UNIT
< I909: A >
32mm
20mm
Wall
1 Hanger
2 Screw
Plug
Wall
above 50mm
Ceiling
4.1 x 32 Screw
Wall
Remote
Control
Holder
5 Screw
Plug
3
HOW TO REMOVE INDOOR UNIT
● Push up the (PUSH) sections at the
bottom of the indoor unit and pull the
bottom plate towards you. Then the
claws are released from the stationary
plate.
(The (PUSH) sections are indicated by
2 arrows in the right figure)
Sleeve of
protection
pipe
WALL Protection
pipe
Seal with
putty
Seal with
putty 2 ~ 5mm
Outdoor Indoor
Connecting cords, pipe and
drain hose must be laid
together with Vinyl tape.
Lift the body
of the unit
upwards and
then force it
downwards.
Hanger
Refrigerating
Pipe
Protection
Pipe
Drain Hose Connecting
Cord
Hanger 1
Projection
2
[Push] mark positions
! CAUTION Condensed water may leak out if not inserted properly.
HORIZONTAL & DOWNWARD PIPING – MAKING OPENINGS
● During horizontal or downward piping, use a knife to cut
openings as shown in figure. Then smoothen the edges of
openings with a file.
● Turn the piping while holding down the lower
portion of pipe-support by hand.
Drain hose Drain cap
Drain cap
Please insert
until here
Drain hose
Please insert
until here
Pipe
support
Pull up the pipe after
bending downward
Openings
Pipe
Connecting
cord
Drain hose
Insulation pipe (must be wrapped with
vinyl tape at every 120mm). 8 Holder
Pipe Rubber strap tied with great force
below
5mm
Please bend at a small
radius to form an arc
0.85m
about 15cm
Hook
Projection
Protection pipe
Connecting cord
Holder Connected section
Drain hose
Heat insulation pipe
Connecting
cord
Refrigerating pipe
Pull this to the front
during the connection
of refrigerating pipes
to ease task.
Bending
upwards Condensed
water pond
Ditch Condensed
water pond
Bush
1
125mm
45mm
200mm
60mm
80mm
780mm
125mm
280mm
45mm
115mm
450mm
Level
Hanger
Hole for pipe
Weight
Mark
Line Please use more
than 4 screws.
Screw for Hanger
8
Holder
1