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Hitachi RAS-S13CYT Installation Manual

Split-unit air conditioner
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FOR SERVICE PERSONNEL ONLY
HITACHI SPLIT-UNIT AIR CONDITIONER
INSTALLATION MANUAL
Indoor Unit
Outdoor Unit
RAS-S13CYT
RAC-S13CYT
RAS-E13CYT
RAC-E13CYT

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.
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 R22. 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.
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 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.
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 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.
450mm
125mm
80mm
45mm
60mm
780mm
Mark
Screw for Hanger
Please use more
than 4 screws.
Procedures of Installation and Precautions
Procedures to fix the hanger.
1. Drill holes on wall.
2. Push plug into the holes.
(As shown below)
(As shown below)
Wall
1 Hanger
2 Screw
32mm
Wall
Procedures to fix the holder of remote controller.
1. Drill holes on wall.
2. Push plug into the holes.
(As shown below)
(As shown below)
Wall
3
Remote
Control
Holder
5 Screw
19mm
Plug
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
WALL
protection pipe should be
Sleeve of
Protection
protection
completely sealed with putty
pipe
pipe
to avoid dripping of rain
water into the room.
<
>
IA547: A
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
+ – Screwdriver
Measuring Tape
Saw
ø 65mm Power Drill
Hexagonal Wrench
Key (
4mm)
Wrench (14, 17, 19, 22, 24, 27mm)
Gas Leakage Detector
Pipe Cutter
Vinyl Tape
Pliers
Flare Tool
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 hanger.
125mm
The projection at the lower part of the
indoor unit is hooked onto the hanger.
Hanger
Refrigerating
45mm
Pipe
115mm
Level
Protection
Pipe
Drain Hose
Hanger
450mm
HORIZONTAL PIPING
Preparation
Line
Change of Drain Hose and Installation Procedures.
Weight
Hole for pipe
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).
3. Fix the hanger on wall
with 4.1 x 32 screw
(As shown in figure below)
Ceiling
above 50mm
Plug
4.1 x 32 Screw
Drain cap
Remove the cap for drain hose installation
Please insert
until here
CAUTION
HORIZONTAL & DOWNWARD PIPING – MAKING OPENINGS
Outdoor
CAUTION
2~5mm
During horizontal or downward piping, use a knife to cut openings as
Be sure that the wire is not
shown in figure. Then smoothen the edges of openings with a file.
in contact with any metal
in the wall. Please use the
Pipe
support
protection pipe as wire
Seal with
putty
passing through the hollow
part of the wall so as to
prevent the possibility of
damaged by mouse.
THE CHOICE OF MOUNTING SITE
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 clearance distances from top, right and left are specified in
figure below.
The location must be convenient for water drainage and pipe
Knife
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.
Names of Indoor Components
No.
Item
Hanger
1
Screw for Hanger
2
( 4 . 1 x 3 2 )
Holder for Remote
Controller
3
AAA Size Battery
4
Screw for holder of
Remote Controller
5
( 3 . 1 x 1 6 )
Remote Controller
6
Purifying Filter
7
Connecting cords,
pipe and drain hose
must be tied together
with Vinyl tape.
Please pull the lower part
of
the
outwards to check if the
Hanger
Lift the body
unit is hooked onto the
of the unit
hanger.
upwards and
Projection
then force
installation may cause
it downwards.
vibration and noise.
Connecting
Cord
Hook
Drain cap
Drain hose
Drain hose
Drain cap
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
Pull up the pipe after
pipe-support by hand.
bending downward
(Please note the following matters and obtain permission from customer before installation).
WARNING
The outdoor unit must be mounted at a location which can sup-
port heavy weight. Otherwise, noise and vibration will increase.
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 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 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.
Do not install outdoor unit facing strong wind direction. It may
The Length of Indoor Unit
damage the fan motor.
Qty
Connecting Cord
about
Figure showing the Installation of Indoor and Outdoor Unit.
0.9m
about 1.6m
1
CAUTION
In case the pipe length is more than 8m, add refrigerant R22 at
Cut away shaded
20 gram per every meter exceeds. However, pipe length shall
6
portion, and finish
not exceed 15m.
the edge of the
opening so that
20
there is no burr.
1
Direction of Piping
Be sure to
completely
seal any
gap with
Horizontally
perpendicular
putty.
to the unit
Connection
2
There
are
6
directions
allowed, namely, horizontally
perpendicular to the unit,
vertically down from right,
horizontally out from right,
2
horizontally
out
to
left,
horizontally out to right,
vertically down from left.
Don't
form
the
piping
downward at the left of the unit.
1
Dimension of Mounting Stand
of the outdoor unit
(unit : mm)
mounting stand
57
2
12
35
500
120
above 200mm
)
(
above 50mm when
installed on the
ceiling of balcony
above 100mm
above 700mm
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 adjustment, fit the connecting cord and pipes
into the space available under the indoor unit.
CAUTION
Insulation pipe
indoor
unit
Pipe
Insulation pipe (must be wrapped with
Improper
vinyl tape at every 120mm).
THE CONNECTION OF REFRIGERATING PIPE DURING THE
INSTALLATION OF INDOOR UNIT
Preparation To Install Refrigerating Pipes
Refrigerating pipes and connecting cord must be
tied together.
The front part of the refrigerating pipes are
at locations marked with "
" symbol.
0.70m
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.
Insulate the connecting portion of refrigerating pipe with
insulator.
Wrap the refrigerating pipes with insulation pipe.
Connect the connecting cord.
After adjustment, the connecting cord and refrigerating pipes
are placed into the space available under the cooling unit.
The projection of indoor unit must hook to the hanger.
Heat insulation
pipe
Pull this to the front
during the connection
Refrigerating pipes
of refrigerating pipes
Connecting cord
to ease task.
3
Installation of Drain Hose
Bending
Condensed
Openings
upwards
water pond
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.)
WARNING
CAUTION
above 50mm
2
1
above 100mm
above 100mm
2,300mm or more
5
6
Plug
4
3
The indoor piping should be
insulated with the enclosed
insulation pipe. (If the insulator
is insufficient, please use
commersial products).
The difference in height
between the indoor and
outdoor unit should be
kept below 5m.
The connecting pipe, no
above 100mm
matter big or small,
give clearance as
should all be insulated
with insulation pipe and
wide as possible
then wrapped with vinyl
tape. (The insulator will
deteriorate if it is not
wrapped with tape).
The connection of insulated
above 200mm
drain hose.
inner diameter ø 16mm
Please use insulated drain
hose for the indoor piping
(commercial product).
Drain hose
Pipe
Connecting cord
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.
Rubber strap tied with great force
Pipe
CAUTION
Please fix in the plastic
core after flaring to avoid
plastic chips entering the
pipes.
below
5mm
Please bend at a small
radius to form an arc
Temporary stand
Projection
Hook
about 15cm
Protection
pipe
Drain hose
Connected
section
Connecting cord
CAUTION
Be sure that the
drain hose is not
Condensed
loosely connected
water pond
Ditch
or bent.

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Summary of Contents for Hitachi RAS-S13CYT

  • Page 1: Safety Precaution

    ● ● HITACHI SPLIT-UNIT AIR CONDITIONER No nearby heat source and no obstruction near the air outlet is Do not expose the unit under direct sunshine or rain. Besides, ventilation must be good and clear of obstruction.
  • Page 2 Preparation of Pipe Removal Of Air From The Pipe And Gas Leakage Inspection Please mount the outdoor unit on stable ground to prevent ● vibration and increase of noise level. ● Use a pipe cutter to cut the copper pipe. Procedures of using Vacuum Pump for Air Removal ●...

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