Hitachi RAK-35RPB Installation Manual

FOR SERVICE PERSONNEL ONLY
1
EN
INDOOR UNIT
RAK-35RPB
MODEL
RAK-50RPB

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.
Make sure to connect earth line.
This sign in the figures indicates prohibition.
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 a customer to keep this installation manual together with the instruction manual.
• 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 installation 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 cables which are approved official in your country. Be sure to use the specified circuit. A short circuit and
fire may occur due to the use of low quality wire or improper work.
• Be sure to use the specified cables 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 to prevent the external force is being applied to the connection section of the
terminal base. Improper insertion and loose contact may cause over-heating and fire.
• Please use the specified components for installation work. Otherwise, the unit may collapse or water leakage, electric shock, fire or
stronger vibration 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 transferring an air conditioner to another location, make sure that air other than the specified refrigerant (R410A)
does not enter the refrigeration cycle. If other air should enter, the pressure level of the refrigeration cycle may increase abnormally
which could result in a rupture and injury.
• 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.
• Be sure to connect the earth line from the power supply wire to the outdoor unit and between
the outdoor and indoor unit. Do not connect the earth line to the gas tube, water pipe, lighting rod or the earth line of the
telephone unit. Improper earthing may cause electric shocks.
• When finishing the refrigerant collection (pumping down), stop the compressor and then remove the coolant pipe.
If you remove the refrigerant pipe while the compressor is operating and the service valve is released, air is sucked and a
pressure in the freezing cycle system will build up steeply, causing an explosion or injury.
• When installing the unit, be sure to install the refrigerant pipe before starting the compressor.
If the refrigerant pipe is not installed and the compressor is operated with the service valve released, air is sucked and the
pressure level of the refrigeration cycle may increase abnormally which could result in a rupture and injury.
•
The electric cables should neither be reworked nor added.
Make sure to use an exclusive circuit breaker.
Otherwise fire or electric shock might occur by connection failure, isolation failure or over current.
• Make sure to connect cables to terminal properly and terminal cover should close firmly.
Otherwise, over heating at terminal contact, fire or electric shock might occur.
• Make sure that there is no dust on any connected points of electric cables and fix firmly.
Otherwise, fire or electric shock might occur.
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.
Visible outline of the
550 mm
Indoor Unit
275 mm
23 mm
100 100
mm mm
668 mm
284 mm 160 mm
180 mm
772 mm
115 mm
900 mm
2 Screw for Hanger
Level
1 Hanger
Line
Wall hole
Weight
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
Plug
2 Screw (Procure
locally)
Wall
32mm
• Procedures to fix the holder of remote control.
1. Drill holes on wall.(As shown below) 2. Push plug into the holes. (As shown below)
Wall
7 Remote
Control
Holder
20mm
RAK-35_50RPB_IM_English 1
WARNING

Installation Of Remote Controller

• The remote controller can be placed in its holder which is fixed on
wall or beam.
• To operate the remote controller at its holder, please ensure that the
unit can receive signal transmitted from the controller at the place where
the holder is to be fixed.The unit will beep when signal is received from
the remote controller . The signal transmission is weaken by the fluorescent
light. Therefore, during the installation of the remote control holder, please
switch on the light, even during day time, to determine the mounting location
of the holder.
Drain Hose
Wall Penetration and Installation of Protection Pipe
Screw the hanger at the
• Drill a ø65mm hole on wall which is
positions possibly near the
upper and lower hooks where
slightly tilted towards the outdoor side.
the indoor unit is hung. Use 4 or
Drill the wall at a small angle.
more screws to fix the hanger.
• Cut the protection pipe according to the
wall thickness.
• Empty gap in the sleeve of protection
pipe should be completely sealed with
3. Fix the hanger on wall
putty to avoid dripping of rain water into
with 4.1 x 32 screw.
the room.
• Please ensure smooth flow of water
(As shown in figure below)
when installing the drain hose. Improper
Ceiling
installing may wet your funiture.
• An IEC approved power cord should be
used. Power cord type: NYM.
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
8 Screw
damaged by mouse. Unless it seals completely, any air with high
Plug (Procure locally)
humidity flows from outdoor and any dew may drop.
A circuit breaker must be installed in the house distribution box for the direct
•
connected power supply cables to the outdoor unit. In case of other installations
a main switch with a contact gap or more than 3mm has to be installed.
Without a circuit breaker, the danger of electric shock exists.
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. Improper
installing may wet your funiture.
• An IEC approved power cord should be used. Power cord type: NYM.
THE CHOICE OF MOUNTING SITE
(Please note the following matters and obtain permission from customer before installation.)
• 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 connection
with the Outdoor unit.
• To avoid interference from noise, please place the unit and its remote
controller at least 1m from the radio and television.
• 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 should be at least 2300 mm or more from the floor.
•
Figure showing the Installation of Indoor Unit.
Be sure to
above 50mm
completely
above
seal any
50mm
gap with
putty.
The indoor piping
should be insulated
with the enclosed
insulation pipe. (If the
insulator is insufficient,
9
please use commercial
products.)
4
8
3
The remote controller
must be slide in
Remote
Controller the remote controller
holder, in the direction
as shown in the figure,
until it hooks at the
Remote
lower end of the remote
Controller
Holder
controller holder.
Screw (2 pieces)
Indoor Outdoor
2-5mm
Seal with
Seal with
putty
putty
Protection
WALL
pipe
Sleeve of
protection
pipe
WARNING
CAUTION
WARNING
CAUTION
2
1
Names of Indoor Components
No. Item
above 50mm Hanger
2300 mm or more
1
Screw for Hanger
2
AAA size Battery
3
Remote Controller
Plug
4
7
Wasabi-Nano Titanium
Air Cleaning Mesh
Direction of Piping
5
Backward piping
C-case
from left
6
Remote Controller Holder
7
Connection
Screw for Remote
There are 6 directions
8 Controller Holder
allowed,namely,backward
piping, backward piping
Insulation sheet
from left,horizontally piping
from right,horizontally piping
9
from left,vertically down from
right,vertically down from left.
2 Installation Of The Indoor Unit
Cutting Low Cover bush
• While installing the pipe from the right, left or bottom
side, use a knife to cut openings as shown in figure.
Then smoothen the edges of openings with a file.
Openings
Openings
PIPING FROM THE RIGHT SIDE
1
(BACKWARD, DOWNWARD, HORIZONTAL)
Preparation
• Connect connecting cord.
• Pull out the pipe, connecting
cord and drain hose.
Connecting cords, pipe and
drain hose must be laid
together with Vinyl tape.
Installation
• Insert the pipe through the wall hole.
The upper part of the Indoor unit
1
is hanged on the hanger.
The projection at the lower part
2
Cable
of the Indoor unit is hooked onto
Drain layout of
the hanger.
backward piping
1
Hanger
Lift the body
Refrigerating
of the unit
Pipe
upwards and
then force it
downwards.
Protection
Drain Hose Connecting Cord
Pipe
Qty
2
2
2
2
Wall hole
Pipe
Drain hose
1
Hanger
1
2
Projection