Hitachi air Home 100 RAK-BJ10PCAST User manual

15
Screw for Mounting Plate
(4.1x32)
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 support
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 2.5m or more.
CAUTION
●
Selecting the installation location: Suitable location that will reduce the
impact from rain and direct sun that may affect the unit performance.
Besides that, ventillation 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 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
the electrical parts, failure of the unit, smoke or fire may be caused.
Request your customer to keep the surrounding of the unit is clean.
INDOOR UNIT
Names of Indoor Components
Direction of Piping
OUTDOOR UNIT
Be sure to
completely
seal any
gap with
putty.
There are 6 directions
allowed, namely, horizontally
perpendicular to the unit,
vertically down from right,
horizontally out from right,
horizontally out to left,
horizontally out to right,
vertically down from left.
< A >
Screw for holder of
Remote Controller
(3.1x16)
AAA Size Battery
Holder for Remote
Controller
Mounting Plate
Qty
No. Component’s Name
1
6
1
2
2
Remote Controller
!
!
!
!
Dimension of Mounting Stand
of the outdoor unit
(unit : mm)
1
2
3
4
5
61
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 mounting plate 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 mounting plate.
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.
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.
!
WARNING
INDOOR UNIT
Procedures of Installation and Precautions
●Procedures to fix the mounting plate.
1.Drill holes on wall. 2. Push plug into the holes. 3. Fix the mounting plate 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)
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 commercial
products).
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 mounting plate.
●The projection at the lower part of the indoor unit is hooked onto the mounting plate.
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.
!
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).
!
CAUTION
Condensed water may leak out if not
inserted properly.
Figure showing the Installation of Indoor and Outdoor Unit.
●Remove the cap for
drain hose installation
Drain cap
Drain cap shall
be fully tightened
by pushing with
Hexagonal wrench
key when changing
location.
CAUTION
●
A brazed, welded or mechanical
connection shall be made before
opening the valves to permit
refrigerant to flow between the
refrigerating system parts. A vacuum
valve shall be provided to evacuate
the interconnecting pipe and/or any
uncharged refrigerating system.
●
Mechanical connectors used indoor
shall comply with ISO 14903.
When mechanical connectors are
reused indoors, sealing parts shall
be renewed. When flare joints are
reused indoors, the flare part shall
be re-frabricated.
●
Refrigerant tubing shall be protected
or enclosed to avoid damage.
!
●Installation of pipe length less than
minimum pipe length requirement
(3 meters) may generate an
abnormal sound.
CAUTION
!
Refrigerant piping
must be protected
from physical
damage. Install a
plastic cover or
equivalent.
In case the pipe length is more than the recommended length for chargeless,
add refrigerant R32 as below. Do not exceed the maximum pipe length.
RAC-BJ10PCAST
Model Factory
charge R32
Indoor
Amin (m2)
Chargeless
up to
Maximum
charge R32
Additional
R32
CAUTION
!
Purifying Filter
71
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.
Tools Needed For Installation Work
●Flare nut must use a torque wrench without fail. Tighten with the specified tightening torque.
If the flare nut is tightened too much, after a long period of time, the flare nut breaks, Gas
leakage, stagnation, touching fire, rarely cause ignition.
●Sharp bending of the pipe use the polyethylene rod, bend not crushed the pipe. Gas leakage
from the crushed part, stagnation, touching fire, rarely cause ignition.
●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.
●Must install air conditioner according to the electrical installation standards for Thailand of
the Engineering Institue of Thailand under The Royal Patronage of His Majesty (the King).
●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 R32. Otherwise, this may result in broken copper
pipes or faults.
●When installing or removing an air conditioner, only specified refrigerant (R32) shall be
allowed, 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. Be aware that refrigerants may not contain
an odour.
●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 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.
●Do not install the indoor unit in a machine shop or kitchen where vapor from oil or its mist
flows 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 flow of water when installing the drain hose.
●Piping shall be suitable supported with a maximum spacing of 1m between the supports.
!
!
CAUTION
!
WARNING
!
●Carefully read through the procedures of
proper installation before starting installation
work.
●The sales agent should inform customers
regarding the correct operation of installation.
●+–Screwdriver ●Measuring Tape
●Knife ●Saw ●Pipe Cutter ●Hexagonal
Wrench Key ( 4mm) ●Power Drill
(ø 65mm ~ ø 80mm) ●Vacuum Pump
●Pliers or Wrench ●Torque Wrench
●Vacuum Pump Adaptor ●Flare Tool
●Gas Leakage Detector ●Manifold Valve
●Charge Hose ●Reammer ●File
<A>
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

●Flare connection only at
outside of building
WARNING
!
123mm
280mm
123mm
115mm
42mm
65 65
42mm
15mm
85mm60mm 65mm 80mm
780mm
INSTALLATION
MANUAL
SPLIT UNIT AIR CONDITIONER
INDOOR UNIT
RAK-BJ10PCAST
OUTDOOR UNIT
RAC-BJ10PCAST
EN INSTRUCTION MANUAL
FOR SERVICE
PERSONNEL ONLY
Home
100
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.
!
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.
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 copper
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.
●The refrigerating pipes and connecting cord
arrangement are attached.
●The end of the refrigerating pipes are at locations
marked with “ ” symbol.
3
Heat insulation pipe
Connecting
cord
Refrigerating pipe
Pull this to the front
during the connection
of refrigerating pipes
to ease task.
Above
100mm
CAUTION
●
Do not guide the drain hose to places where corrosive gases (sulfur, ammonia, etc.) are
generated, such as septic tanks and sewer.
Corrosive gas may flow backward from the drain hose to the indoor unit, corrode the copper
pipe, or it may cause offensive odors in the room.
●
Cut the drain hose at a position 100 mm higher than the floor surface. It may cause water
leakage due to air lock or clogging of foreign matter.
!
1100 mm
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.
Installation of Drain Hose
0.60kg 0.34m28m 15g/m 0.705kg
INS RAK/RAC-BJ10PCAST (EN) (SOFT).indd 1INS RAK/RAC-BJ10PCAST (EN) (SOFT).indd 1 2023-10-24 8:48 PM2023-10-24 8:48 PM

Gas Leakage Inspection
Please use gas leakage detector
to check if leakage occurs at
the connection of Flare nut as
shown on the right.
If gas leakage occurs, further
tighten the connection to stop
leakage. (Use the detector
provided for R32)
Preparation of Pipe
●Use a pipe cutter to cut the copper pipe.
●Jagged edge will cause leakage.
●Point the side to be trimmed downwards during trimming to prevent copper
chips from entering the pipe.
●Before flaring, please put on the flare nut.
Pipe Connection
2
INSTALLATION OF REFRIGERATING PIPES AND AIR REMOVAL
●Recommend to use
R32 flaring tool.
●When removing flare nut from the Indoor unit, please ensure to use proper
tooling.
●Prevent pipe from coming in contact with water or working in wet area.
1
CAUTION
CAUTION
!
!
CONNECTION OF POWER CORD
Removal Of Air From The Pipe And Gas Leakage Inspection
3
Procedures of using Vacuum Pump for Air Removal
AIR REMOVAL
When the meter reaches - 101KPa (-76cmHg)
during pumping, fully tighten the shuttle.
Meter showing pressure
Closed
Manifold valve
Vacuum
pump
Valve
Charge hose
Valve
When pumping starts, slightly loosen the
flare nut to check of air sucked in. Then
tighten the flare nut.
As shown in right figure, remove the cap of
valve core. Then, connect the charge hose.
Remove the cap of valve head. Connect the
vacuum pump adapter to the vacuum pump
and connect the charge hose to the adapter.
Fully tighten the “Hi” knob of the manifold
valve and completely unscrew the “Lo” knob.
Run the vacuum pump for about 10~15
minutes, then completely tighten the “Lo” knob
and switch off the vacuum pump.
After vacuuming, confirm that the needle of
the manifold gauge is stable for 3~5 minutes.
Completely unscrew the spindle of the
service valve (at 2 places) in anti-clockwise
direction to allow the flow of refrigerant (using
Hexagonal Wrench key).
Re-cap the service valve and tighten using
wrench. Check the cap’s periphery if there is
any gas leakage. The task is then completed.
Remove the charge hose and tighten the cap
of valve core. Check the cap’s periphery if
there is any gas leakage.
Vacuum
pump
adapter
Checking for the electric source and the voltage range
●Before installation, the power source must be checked and necessary wiring
work must be completed. To make the wiring capacity proper, use the wire gauge
list below for the wiring from house distribution fuse box to the outdoor unit in
consideration of the locked rotor current.
●Investigate the power supply capacity and other electrical conditions at the installation
location.
Depending on the model of room air conditioner to be installed, request the customer
to make arrangements for the necessary electrical work etc.
The electrical work includes the wiring work up the outdoor. In localities where
electrical conditions are poor, use of a voltage regulation is recommended.
THIS APPLIANCE MUST BE EARTHED.
WARNING
!
When removing the connecting wires for the indoor unit, please remove the low
cover panel in front of the unit.
50
40
A
B
Outdoor Unit
Detail of cutting the connecting cord
Wire length
up to 25m
Wire gauge
1.5mm2
IMPORTANT IMPORTANT
10A
Fuse Capacity
!
CAUTION
Note:
●Outdoor supply cords shall not be
lighter than polychloroprene sheathed
flexible cord, 60245 IEC 57.
Wiring Of The Indoor Unit
● For wire connection of the Indoor unit, you need to remove front panel and electrical
cover.
Method to remove front panel
● Please refer to Instruction Manual – “Removing the Front Panel” under “Cleaning
of Front Panel”.
Connect the
earth cord
After remove the
screw and band, put
the connecting cords
and fix the band
with screw.
Method to remove electrical cover
●Remove the screw and electrical cover.
●Insert the connecting cord (A, B) from the back of unit.
●Fixed the wire to terminal wires firmly as shown as below.
Connecting cord
Electrical cover
Screw
WARNING
●If you cannot attach the side plate due to the connecting cord, press the
connecting cord in direction to the front panel to fix it.
●Be sure that the hooks of the side plate is fixed in certainly. Otherwise
water leakage may occur and this causes short circuit or faults.
Wiring Of The Outdoor Unit
●Please remove the side plate for wire connection.
!
Earth terminal
AB
Indoor Unit
Procedures of Wiring
In case that power is supplied from Indoor Unit
●Prevent moisture from entering pipe connection.
●Refrigerating machine oil not be applied to the outside
of the flare.
When refrigerating oil is applied to the outside of the
flare, cracking of the flare nut, destruction of the flare
and gas leakage may occur due to the excessive
tightening of the flare nut.
●When using the control valve, do not use deteriorated
packing. And, do not overtighten the steering wheel.
Gas leakage from the service valve part, stagnation,
touching fire, rarely cause ignition.
CAUTION
!
WARNING
!
●Leave some space in the connecting cord for maintenance
purpose and be sure to secure it with the cord band.
●Secure the connecting cord along the coated part of the
wire using the cord band. Do not exert pressure on the
wire as this may cause overheating or fire.
●Supply cords, current- carrying conductors become
taut before earthing conductor, if the cord slips out
of the cord band.
< A >
FINAL STAGE OF INSTALLATION
Insulation And Maintenance Of
Pipe Connection
1
●The connected terminals should be completely
sealed with heat insulator and then tied up with
rubber strap.
●Please tie the pipe and power line together with vinyl
tape as shown in the figure showing the installation
of Indoor and Outdoor units. Then fix their position
with holders.
●To enchance the heat insulation and to prevent
water condensation, please cover the outdoor part
of the drain hose and pipe with insulation pipe.
●Completely seal any gap with putty.
●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.
Pump Down Method When Reuse
Existing Piping (R410A Model) for R32 Model
Proper Pump Down Method
1Operate air conditioner at cooling mode for 10~15
minutes
Most Important Process
Purpose: To make the oil & refrigerant mix together.
They are in separated condition when air conditioner
is stopped.
2After 10~15 minutes of pre operation, close 2s valve.
After 3 minutes, close 3s valve.
Mixed refrigerant & oil will be collected into outdoor
unit.
3Take out air conditioner unit.
It is advisable to flush the piping with R32 to avoid any
contamination remain before new installation.
4Install New Refrigerant air conditioner
●Compressor oil of R410A model is insoluble in compressor
oil of R32 model. The mixing of compressor oil may cause
damage of compressor.
Possibility of Mixing
●Reuse of piping of R410A model is dangerous because of
its compressor oil.
●When reuse piping of R410A model, pump down must
be carried out properly to ensure compressor oil which is
remained inside piping is collected away.
Power Source And Operation
Test
3
Power Source
CAUTION
!
●Please use a new socket. Accident may occur
due to the use of old socket because of poor
contact.
●Please plug in and then remove the plug for
2 – 3 times. This is to ensure that the plug is
completely plugged into the socket.
●Keep additional length for the power cord and
do not render the plug under external force as
this may cause poor contact.
●Do not fix the power cord with U-shape nail.
Operation Test
●Please ensure that the air conditioner is in normal
operating condition during the operation test.
●Explain to your customer the proper operation
procedures as described in the user’s manual.
The controller should be insert from top into
bottom side of the holder as shown below.
Reuse of piping R410A model only apply if previous
model is Hitachi and proper pump down method is used.
CAUTION
!
To Reuse Old Piping
●Piping of R410A model can be reused only when air-
conditioner is properly pumped down.
●The purpose of pump down is to collect back the compressor
oil (which is mixed with refrigerant and circulating inside
refrigeration cycle) properly into the outdoor unit of air
conditioner.
WARNING
Explanation of symbols displayed on unit
CAUTION
CAUTION
CAUTION
●Do not use means to accelerate the defrosting process or to
clean, other than those recommended by the manufacturer.
Any unfit method or using incompatible material may cause
product damage, burst and serious injury.
●The appliance/pipe-work shall be stored in a well ventilated room
with floor area larger than Amin(m2) and without any continuously
operating ignition source. Keep away from open flames, any
operating gas appliances or any operating electric heater. Else,
it may explode and cause injury or death.
●The appliance/pipe-work shall be installed, and/or operated
in a room with floor area larger than Amin(m2) and keep away
ignition sources, such as heat/spark/open flame or hazardous
areas such as gas appliances, gas cooking, reticulated gas
supply systems or electric cooking appliances, etc.
●Do not pierce or burn as the appliance is pressurized. Do not
expose the appliance to heat, flame, sparks, or other sources
of ignition. Else, it may explode and cause injury or death.
WARNING
!
This symbol shows that this equipment uses a
flammable refrigerant.
If the refrigerant is leaked, together with an
external ignition source, there is a possibility
of ignition.
This symbol shows that the Operation
Instructions should be read carefully.
This symbol shows that a service personnel
should be handling this equipment with
reference to the Installation Manual.
This symbol shows that there is information
included in the Operation Manual and/or
Installation Manual.
Installation Of Remote
Controller
2
If a wrong supply voltage is applied.
●If a 220-240V model is connected to a 100V power
supply, all the indicators of the indoor unit blink.
Correct the voltage of the power outlet (It is not a
failure).
Perform a trial run to make sure that the air
conditioner operates properly.
1. Press the COOL button (in summer) or HEAT button
(in winter) of the remote controller.
2. Press the ROOM TEMPERATURE button to set the
temperature to 16°C for cooling mode or 32°C for
heating mode. Set the fan speed to “ ” (HI).
3. Operate the air conditioner for at least 20 minutes
and make sure that the air from the air conditioner
is cool or warm.
4. Press the STOP button on the remote controller to
make sure that the air conditioner stops running.
●If the indicators of the indoor unit blink during the
trial run, perform a check following the procedures
below.
Trial run ❖Be sure to measure the
supply voltage before
connecting the power cord
into the power outlet.
●To reset the power supply by switching the circuit
breaker OFF, and ON only after:-
1. waiting for at least 5 minutes; or
2. pressing the temporary switch button only once
while the power is OFF.
Indicator Blinking Mode What to check
Make sure that the
voltage of the power
outlet is correct
according to the product
specification.
Make sure that the
connecting cord is
connected correctly and
securely.
All indicators blink
once repeatedly
All indicators blink
twice repeatedly.
1
2
3
4
5
Must install air conditioner according to the electrical installation standards for
Thailand of the Engineering Institue of Thailand under The Royal Patronage
of His Majesty (the King).
OUTDOOR UNIT
●Please mount the Outdoor unit on stable ground to prevent vibration
and increase of noise level.
●Decide the location for piping after sorting out the different types of
pipe available.
●Open the service valve cover by unscrewing the screws as shown
below.
WARNING
●Use the two spanners on
the service valve nuts to
tighten and loosen so that
the service valve will not
deform. Gas leak from the
crushed part, stagnation,
touching fire, rarely cause
ignition.
WARNING
!
PURGING OF REFRIGERANT IS
PROHIBITED
Purging of refrigerant will cause the unit
to be lacked of refrigerant which may
affect the capacity performance and
lead to severe dew formation causing
problem such as dew water drop or
splashing from the unit.
When connecting pipes. If you tighten
the flare nut by excess torque, the
service valve on the small pipe side
may be broken.
The flare nut on the small pipe side
should be torqued to 122 - 165lbf.in
(140 - 190kgf.cm).
BURST HAZARD
Do not allow air, etc. to get into refrigerant cycle (piping)
RISK OF EXPLOSION
Compressor must be stopped before removing refrigerant pipes.
All service valve must be fully closed after pumping down operation.
WARNING
!
Transport Details Marking and storage Air
conditioners that use flammable refrigerants.
●Transportation of air conditioners containing
combustible refrigerant
●Disposal of air conditioners using flammable
refrigerants
●Air conditioning storage
●Storage of air conditioners in packaging
(not yet sold)
Outer
dia.of pipe
6.35 (1/4")
9.52 (3/8")
6.35 (1/4")
9.52 (3/8")
Valve
head cap
Torque N·m
(kgf ·cm)
13.7 – 18.6 (140 – 190)
34.3 – 44.1 (350 – 450)
19.6 – 24.5 (200 ~ 250)
19.6 – 24.5 (200 ~ 250)
12.3 – 15.7 (125 ~ 160)
Small dia. side
Large dia. side
Valve core cap
Small dia. side
Large dia. side
Outer
Diameter (mm)
6.35 (1/4)
9.52 (3/8)
1.0~1.5
1.0~1.5
Clutch type
A (mm)
1.5~2.0
1.5~2.0
Wing nut type
Thickness
(mm)
0.8
0.8
0.0 ~0.5
0.0 ~0.5
Flare tool for R32
Clutch type
Conventional flare tool
WARNING
!
●The naked part of the wire core should be 10 mm fix it to the terminal tightly. Then
try to pull the individual wire to check if the contact is tight. Improper insertion may
burn the terminal.
●Be sure to use only wire specified for the use of air-conditioner.
●Please refer to the manual for wire connection and the wiring technique should
meet the standard of the electrical installation.
●There is an AC voltage drop between the LN terminal if the power is on. Therefore,
be sure to remove the plug from its socket.
INS RAK/RAC-BJ10PCAST (EN) (SOFT).indd 2INS RAK/RAC-BJ10PCAST (EN) (SOFT).indd 2 2023-10-24 8:48 PM2023-10-24 8:48 PM