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1
Preparation of Pipe
• Use a pipe cutter to cut the copper pipe and remove burr.
CAUTION
Trimming tool
• Remove burr and jagged edge will cause leakage.
• Point the side to be trimmed downwards during trimming to
Copper pipe
prevent copper chips from entering the pipe.
Outer Diameter
A (mm) Rigid Flaring Tool
• Before flaring, please put on the flare nut.
(ø)
For R410A tool
• Please use exclusive tool for
Die
Die
6.35 (1/4")
0 – 0.5
A
refrigerant R410.
9.
52
(3/8")
0 – 0.5
Copper pipe
2
Pipe Connection
• In case of removing flare nut of a indoor unit, first remove a nut of small diameter side, or a seal cap of big diameter side
will fly out.
• Free from water into the piping when working.
CAUTION
• Be sure to tighten the flare nut to the specified torque with a torque wrench. If the flare nut is overtightened, the nut may
be split after a long period has passed, and may cause a refrigerant leak.
• Please be careful when bending the copper pipe.
Outer diameter
• Screw in manually while adjusting the centre. After that, use a
of pipe (ø)
torque wrench to tighten the connection.
Small diameter side
6.35 (1/4")
Flare nut
Large diameter side
9.52 (3/8")
Small diameter side
6.35 (1/4")
Valve head
cap
Large diameter side
9.52 (3/8")
Wrench
Valve core cap
Torque wrench
3
Remove of Air from the Pipe and Gas Leakage Inspection
Procedures of using Vacuum Pump for Air Removal
Remove the cap of valve core. Then, connect the charge
1
hose. Remove the cap of valve head. Connect the vacuum
Valve head cap for the service valve
pump adapter to the vacuum pump and connect the charge
at small diameter side
hose to the adapter.
Valve head cap for the service valve
Fully tighter the "Hi" shuttle of the manifold valve and
at large diameter side
completely unscrew the "Lo" shuttle. Run the vacuum pump
cap of valve core
for about 10-15 minutes, then completely tighten the "Lo"
2
shuttle and switch off the vacuum pump.
When the meter reaches -101KPa (-76cmHg)
• Loosen the spindle of the service valve with small
during pumping fully tighten the shuttle.
diameter by 1/4 turn and tighten the spindle immediately
Meter showing
after 5 to 6 seconds.
pressure
• Remove the charging hose from the service valve.
Charge hose
Completely unscrew the spindle of the service valve (at 2
Valve
3
places) in anticlockwise direction to allow the flow of
refrigerant (using Hexagonal Wrench key).
Vacuum pump adapter
4
Tighten the cap of valve head. Check the cap's periphery if
Valve
When pumping starts, slightly loosen the flare
there is any gas leakage. The task is then completed.
nut to check of air sucked in. Then tighten the
flare nut.
The body of
service valve
Gas leakage inspection
Please use gas leakage detector to check if
leakage occurs at connection of Flare nut as
Cap of
shown on the right.
valve core
If gas leakage occurs, further tighten the
Cap of valve head
connection to stop leakage.
Hexagonal wrench key
—
9
—
Wiring of the Outdoor Unit
• Please remove the side cover for wire connection.
• If you cannot attach the side plate due to the connection cord, please press the connecting cord in the direction to the
front panel to fix it.
WARNING
• Be sure that the hooks of the side cover fixed in certainly. Otherwise water leakage may occur and this causes short
circuit or faults.
• The connecting cord should not touch to service valve and pipes. (It becomes high temperature in heating operation.)
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 blocked rotor current.
IMPORTANT
L(A)N(B)
C D
Wire length
Wire gauge
2
up to 6m
1.6mm
up to 15m
2.5mm
2
up to 20m
4.0mm
2
• Investigate the power supply capacity and other electrical conditions at
the installing 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 unit. In localities
IMPORTANT
where electrical conditions are poor, use of a voltage regulation is
recommended.
Fuse Capacity
• Install outdoor for the room air conditioner within the reaching range of
16A time delay fuse
the line cord.
1
Heat Insulation and Finish of the Piping
• The connected terminals should be completed sealed with heat insulator and then tied up
7 Insulation sheet for pipe connection
with rubber strap.
• Do not tie the terminals with the tape too tight.
• If any clearance or over-tightening may cause condensation.
• Please tie the pipe and power cord together with vinyl tape as shown in the figure showing
the installation of Indoor and Outdoor units.
• To enhance the heat insulation and to prevent water condensation, please cover the outdoor
Sleeve of
protection pipe
part of the drain hose and pipe with insulation sheet.
• Completely seal any gap with putty.
Putty
2
Affixing the Remote Controller and Installing the Air Purifying Filter
• The remote controller may be affixed to a wall or pillar with the remote controller mounting screw 4.
• When operating the air conditioning with the remote controller attached, please confirm that the signal is received by the air conditioning.
Furthermore, fluorescent lighting may affect the reception of the signal, therefore, please confirm by turning on the fluorescent lighting even
during the day.
• Lighting fixtures with electronic starters may shorten the reception distance and may even interfere with the signal being received.
Installation
• Insert the remote controller on the
mounting bracket from above.
Wall or pillar
4 Remote Controller
Mounting Screw
—
11
—
< EE0003443-IM >
RAS-D10EX2_A1_EN
2
Procedures of Wiring
Detail of cutting the connecting cord
When power supplies to Indoor Unit
Indoor unit
Indoor unit
Outdoor unit
Line cord
30mm
30mm
Green + Yellow
10mm
10mm
10mm
ø2.0
70mm
Strip wires
AC 220–230V
Outdoor unit
1ø 50Hz
ø1.6 or ø2.0
For R22 tool
50mm
50mm
10mm
10mm
Connecting cord
1.0
1.0
Strip wires
Green + Yellow
When power supplies to Outdoor Unit
Detail of cutting the connecting cord
Indoor unit
Indoor unit
Outdoor unit
30mm
Green + Yellow
10mm
ø1.6 or
ø2.0
10mm
70mm
Outdoor unit
Connecting cord
Green + Yellow
ø2.0
50mm
50mm
10mm
10mm
AC 220–230V
1ø 50Hz
Torque N • m
Green + Yellow
Strip wires
(kgf • cm)
Wiring of the Indoor Unit
13.7 – 18.6 (140 – 190)
• For wire connection of the Indoor unit, you need to remove the front cover (refer to page 14), the low cover from the body of the
34.3 – 44.1 (350 – 450)
unit and terminal cover.
19.6 – 24.5 (200 – 250)
• Remove the cover from the terminal base and screw the cable.
Securely screw in the power cord and connecting cord so that it will not get
19.6 – 24.5 (200 – 250)
loose or disconnect.
12.3 – 15.7 (125 – 160)
D
Connecting cord
Tightening torque reference value: 1.2 to 1.6 N·m (12 to 16 kgf·cm).
C
Connecting cord
B
Excessive tightening may damage the interior of the cord requiring
A
replacement.
Screw
When putting two connecting cords through the band.
Screw
Terminal cover
Earth
Connecting cord
After remove the screw and terminal cover, and
Not to interfere with the drain hose, fold the cable at the drain hose side of
put the connecting cords and fix the terminal
the electric box as shown in the left figure, and pass the cable just over the
cover with screw.
electric box and pull it out.
• Wiring for the horizontal piping from the right side.
Closed
Cord band
R410A Manifold valve
• Leave some space in the connecting cord for
Bottom cover
Cord band screw
Vacuum pump
maintenance purpose and be sure to secure it with
Connecting cord
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.
When power supplied to outdoor unit
• Power cannot be turned off using power switch. Always keep the switch "off" and put the switch cover on the
power switch so that the power cannot be turned on.
• Power cord is not necessary, store it in the lower-side space on the rear side of indoor unit. When storing, warp
the power plug with the vinyl bag for the parts, etc. and seal with adhesive tape to prevent dust or dirt.
Cap of valve head
• Terminal A and B of indoor unit do not need to be connected.
• When power supplied to outdoor unit, power is not turned off by switching the power of indoor unit to "OFF". In
that case, please cut the breaker.
—
10
—
Address Changing Switch
This is utilized to avoid the interference of remote controller signals when there are two indoor devices
installed in the same room. The Address Changing Switch is on the outside of the remote controller
battery cover (set to "A" during shipment).
• Setting the address (to avoid interference)
Only one of the two indoor devices has to be set (turn off the power to the other indoor device).
1 Place a battery in the remote controller and press the reset switch (please refer to page 29 in the
Instruction Manual).
2 While pointing the remote controller transmitter/receiver at the indoor device, move the switch of
the Address Changing Switch to "B".
3 The channel is set when the device beeps, confirming it has received the signal.
• After changing the address, please confirm the device's operation with the remote controller. If the
device does not operate, return the switch to "A" and please set the switch again.
Cover
• Installing and verifying the air purifying filter/duct filter (fresh air in pre-filter, exhaust pre-filter, nano-titanium disinfecting deodorizing/dust collecting fresh
air in filter). (Refer to Instruction Manual pages 10, 11.)
Earth terminal
• Remove the air purifying unit (2 pieces)
• Open the air purifying unit and attach
by pulling out while pushing up with both
the air purifying filter with the jagged side
hands.
up.
Air purifying unit
Air purifying unit
Negative Ion Stick
Air purifying filter
(Included)
• Attach the ! Nano-Titanium disinfecting
• Attach the filter frame and the fresh air
deodorizing/dust collecting fresh air in filter
in pre-filter.
to the filter frame.
! Nano-Titanium disinfecting deodorizing/
dust collecting fresh air in filter
Filter frame
Filter frame
Fresh air in pre-filter
Putty
• Improper filter installation may result in abnormal noises.
3
Setting the Two Way Air Exchange Selection Switch
Putty
Operate Two Way Air
When operating the Two way air exchange. Please utilize this mode
Exchange
for normal operation.
When stopping the Fresh air in operation. Please select this mode
when there is space to vent the Two way air exchange hose between
Only Exhaust
the internal and external walls, which leads outside the room, even if
the mounting work cannot directly vent the Two way air exchange hose
outside the room.
When stopping the Two way air exchange operation. Please select
this mode when the Two way air exchange hose cannot be vented
directly outside the room (Installation work specified for the embedded
Prohibit Two Way Air
ducting) or when there is a source of a questionable odor, smoke, or
Exchange
oily smoke in the vicinity of the opening of the Two way air exchange
hose, even if the mounting work directly vents the Two way air exchange
hose outside the room.
Two way air exchange Selection Switch
1 Prohibit Two Way Air Exchange
2 Only Exhaust
3 Operate Two Way Air Exchange
—
12
—
4
Power Source and Operation Test
• THIS APPLIANCE MUST
WARNING
BE EARTHED.
Power source
WARNING
WARNING
• The naked part of the wire core should
• Never extend the power cord.
be 10mm fix it to the terminal tightly.
• Keep additional length for the power cord and do not render the plug
Then try to pull the individual wire to
under external force as this may cause poor contact.
check if the contact is tight. Improper
insertion may burn the terminal.
• Do not fix the power cord with U-shape nail.
• Be sure to use only wire specified for
• The power cable easily generates heat. Do not bring the cable together
the use of air-conditioner.
with a wire or vinyl tie.
• Please refer to the manual for wire
connection and the wiring technique
should meet the standard of the
Operation test
electrical installation.
• There is an AC voltage drop between
• Please ensure that the air conditioner is in normal operating condition
the LN terminal if the power is on.
during the operation test.
Therefore, be sure to remove the plug
• Explain to your customer the proper operation procedures as described
from its socket.
in the user's manual.
• If the indoor unit won't operate, check the cable for correct connection.
• Turn on the lamp in the room where the indoor unit is installed and check
the remote controller for normal operation.
After completing the service switch operation, be sure to keep the
switch pressed for one or more seconds and stop the force-cooling
operation.
Removing and Attaching the Front Panel
WARNING
Cord band
• Please ensure that the front panel is attached with both hands.
After wiring the indoor unit, make sure to
reattach the terminal cover.
Front panel
Two way air exchange hose
Bottom cover
bush hole
Refrigerating pipe
Drain hose
Piping and drain hose layout
WARNING
Removing
• After opening the front panel all the way with both hands, press the
arm on the far right side to the inside and remove it from the hole, then
pull forward.
0
End Treatment of Two Way Air Exchange Hose
• Treat the end of two way air exchange hose placed outdoor as follows.
When not using the outlet cover
A
B
1 Cut the two way air exchange hose so that the height difference between downward bending point and the
tip of the hood becomes 240 – 300mm.
Switch
• When the two way air exchange hose can be brought down straight from the wall hole, cut the hose at the
Address Changing
point 190 – 250 mm away from the wall hole.
Switch
• When arranging the two way air exchange hose in outdoor, cut the hose at the point 190 – 250 mm away
from the downward bending point.
Decorative tape
Two way air
exchange hose
Refrigerating pipe
~ Hood
= Net
• Remove the fresh air in pre-filter and the
When bringing down straight from the wall hole
filter frame.
2 Connect the two way air exchange hose to the net.
Filter frame
When the two way air exchange hose is ø25
Attach the hood to the net, insert the two way air exchange hose in the net and fix with vinyl tape.
(1) Insert the hood until it touches the end.
(2) Fix the tab of the net to the tab of the hood.
(3) Wrap the tip of the two way air exchange hose with vinyl tape (locally procured) 2 – 3 round.
Fresh air in pre-filter
(4) Insert the two way air exchange hose (A) inside the net until it touches the end and fix it with vinyl tape (locally procured).
% Two way air
= Net
exchange hose (A)
Tab
3 Fix the two way air exchange hose with the drain hose with decorative tape. (Refer to the above drawing.) In this case, face it downwards to avoid
covering the two way air exchange opening.
In case a hole cannot be opened in the outer wall
Only the exhaust is possible when the hole in the wall passes through to the outside of the room.
1 Install the net to the two way air exchange hose and seal with vinyl tape.
2 Place the two way air exchange hose in the space within the wall.
3 Ensure that the two way air exchange Selection Switch is on "Stop Fresh air in" (refer to "Setting
the two way air exchange Selection Switch" on page 12.)
Connecting cord
Insert the two way air exchange
Refrigerating pipe
hose into the wall gap.
Drain hose
Indoor unit
12/13/05, 11:41 AM
Removing
Force-cooling Operation
1 Lift up while pressing the top
grill and remove from tab.
• When the service switch of the outdoor unit is pressed for 1 or more
(3 places: left, centre and right)
seconds, the force-cooling operation starts. Use this mode when
performing the failure diagnosis or collecting refrigerant into the outdoor
Tab
unit.
Screw
Cover
Service switch (If the switch is pressed for
more than 1 second, the force-cooling
operation starts. If the switch is pressed
for additional more than 1 second, the
operation stops.)
CAUTION
Removing the front cover
• Do not operate the unit for more than 5 minutes while the spindle of
1 Remove the front panel, pre-filter, air purifying unit, top grill and
the service valve is closed.
exhaust pre-filter. (Refer to page 10 of Instruction Manual)
2 Remove the screw cover at the bottom of the front cover and remove
the screw.
3 Remove the screw behind the exhaust pre-filter.
Screw cover
Shaft
Arm
Shaft
2
1
Front panel
4 Remove the centre tab of the front cover (1 place).
Steps
Steps
Remove this tab
Attaching
• Take both arms of the front panel and press into the holes along the
steps of the device. Close the front panel after confirming that the arms
5 Place your hands on both sides of the front cover and remove while
are attached.
pulling in the direction of the arrow.
—
13
—
Using two way air exchange outlet cover (HC-DS5)
1 Cut the two way air exchange hose at 45-55mm from wall.
2 Wrap the top of the two way air exchange hose with vinyl tape (procure locally) tightly.
CAUTION
3 Attach the net to the two way air exchange hose, and then seal with vinyl tape (procure locally).
• In case the distance to the two way
4 Attach the two way air exchange outlet cover.
air exchange hose is small or the
hose is not fixed downward, rain
may drip into the room from the two
way air exchange hose.
• Set the hose longer at strong wind
area or seaside.
Refrigerating pipe
Decorative tape
When arranging the hose in outdoor
Two way air
exchange outlet
cover (HC-DS5)
In Case of Embedded Piping
~ Hood
% Two way air
In case a hole can be opened in the outer wall.
exchange hose (A)
1 Open a hole of ø40 and above on the external wall at right bottom side of the air conditioner.
2 Pull out the two way air exchange hose, attach the = net and ~ hood, then seal with vinyl
tape.
Two way air
exchange hose
CAUTION
• Do not supply air from inside a wall.
By supplying highly humid air from inside
a wall or from underneath the floor, this
will cause dew to form. In addition, the
odors from inside a wall or from
underneath the floor may cause the odors
Seal with tape
to infiltrate the room.
Two way air
exchange hose
Inner wall
Refrigerating pipe
Drain hose
Outer wall
—
15
—
Attaching the Top Grill
Attaching
2 Pull forward.
1 Position the " " sign away.
2 Press the top grill down and
Slide along the top of the
affix with the hold down tab.
indoor device and press.
Tab
Attaching the front cover
1 Confirm that the w-plate has been installed.
2 After inserting the front cover into the device, ensure that the top
tabs (3 places) have been inserted. In addition, secure the centre
tab (1 place). At this time, ensure that the front cover is not lodged
above the two way air exchange fan unit.
Fix the top tabs (3 places)
Screw (Rear of
Exhaust Pre-filter)
Screws Screw cover
Fix the centre
tab (1 place)
Ensure that the front cover is not
lodged above the two way air
exchange fan unit.
3 Tighten the screw to the two way air exchange fan unit.
4 Tighten the two screws at the bottom of the front cover and replace
the screw cover.
Screw (for two way air
exchange fan unit)
Screws
5 Replace the exhaust pre-filter, top grill, air purifying unit, pre-filter
and front panel.
—
14
—
Be careful that the net does
not come out from opening
Attach the outlet cover
of the outlet cover.
from the top.
Drain hose
Downward piping
Horizontal piping
Upward piping
= Net
Exhaust
Exhaust
Drain hose
Exhaust
Air conditioner
Wall hole for two way air
exchange hose ( more
Wall hole for
than ø40)
refrigerating pipe
Finish by sealing with putty.
Connecting cord
Seal with tape
Refrigerating pipe
Two way air
exchange hose
Drain hose
Wall hole ( more
than ø40)
45 ~ 55mm
Indoor/Outdoor putty
—
16
—
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