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INDOOR UNIT
CUTTING THE HOLE IN THE WALL FOR THE CONNECTING PIPING
CAUTION
Drill the hole on wall with diameter shown in the table below.
INDOOR UNIT PIPING DIRECTION (Fig.1)
Diameter of hole in the wall
1246
ø80
35
ø65
When taking out pipe from rear (3Fig.1) or left rear (5Fig.1), if the
hole diameter has been set ø80 mm, the wall cap will interfere with
the air conditioner and mounting plate.
(1) When cutting the wall hole at the inside of the wall hook bracket, cut the hole within
the range of the left and right center marks 40 mm below the wall hook bracket.
When cutting the wall hole at the outside of the wall hook bracket, cut the hole at
least 10 mm below over.
(2) Cut the hole so that the outside end is lower (5 to 10 mm) than the inside end.
(3) Always align the center of the wall hole. If misaligned, water leakage will occur.
(4) Cut the wall pipe to match the wall thickness, stick it into the wall cap, fasten the cap
with vinyl tape, and stick the pipe through the hole. (The connection pipe is sup-
plied in the installation set.) (Fig. 5)
(5) For left piping and right piping, cut the hole a little lower so that drain water will
flow freely. (Fig. 5)
INSTALLING THE WALL HOOK BRACKET
(1) Install the wall hook bracket so that it is correctly positioned horizon-
tally and vertically. If the wall hook bracket is tiled, water will drip to
the floor.
(2) Install the wall hook bracket so that it is strong enough to withstand
the weight of an adult.
●
Fasten the wall hook bracket to the wall with 8 or more screws through
the holes near the outer edge of the bracket.
●
Check that there is no rattle at the wall hook bracket.
WARNING
If the wall pipe is not used, the cord interconnecting
the indoor and outdoor units may touch metal and
cause electric leakage.
FORMING THE DRAIN HOSE AND PIPE
[Rear piping, Right piping, Bottom piping]
●
Install the indoor unit piping in the direction of the wall hole and bind
the drain hose and pipe together with vinyl tape. (Fig. 7)
●
Install the piping so that the drain hose is at the bottom.
●
Wrap the pipes of the indoor unit that are visible from the outside
with decorative tape.
[For Left rear piping, Left piping]
Interchange the drain cap and the drain hose.
CAUTION
(1) In order to align the drain hose and drain cap, be
sure to insert securely and vertically. Incline inser-
tion will cause water leakage.
(2) When inserting, be sure not to attach any material
besides water. If any other material is attached, it
will cause deterioration and water leakage.
(3) After removing drain hose, be sure not to forget
mounting drain cap.
(4) Be sure to fix the drain hose with tape to the bottom
of piping.
(5) Prevent drain water frozen under low tempera-
ture environment.
When installing indoor unit's drain hose outdoors, necessary
measure for frost protection should be taken to prevent drain
water frozen.
• Under low temperature environment (when outdoor tempera-
ture under 0 °C), after cooling operation is executed, water
in the drain hose could be frozen.
Once drain water is frozen, the drain hose will be blocked
and water leakage may be resulted for indoor unit.
●
Be sure to install around the drain hose connector.
●
As the screw is inside, be sure to use screwdriver treated with
magnet.
OUTDOOR UNIT
OUTDOOR UNIT INSTALLATION
1 Install the unit where it will not be tilted by more than 3˚. However, do not install the unit with it tilted towards the side
containing the compressor.
2 When installing the outdoor unit where it may exposed to strong wind, fasten it securely.
(1) Outdoor unit to be fasten with bolts at the four places indicated by
the arrows without fail.
Drain cap
Bottom side
mounting place
650 mm
Drain pipe
4-ø 12 hole
Bolt
mounting place
Nut
(2) Fix securely with bolts on a solid
block. (Use 4 sets of commer-
cially available M10 bolt, nut and
washer.)
AIR PURGE
(1) Remove the cap, and connect the gauge manifold and the vacuum
pump to the charging valve by the service hoses.
(2) Vacuum the indoor unit and the connecting pipes until the pressure
gauge indicates –0.1 MPa (–76 cmHg).
(3) When –0.1 MPa (–76 cmHg) is reached, operate the vacuum pump
for at least 60 minutes.
(4) Disconnect the service hoses and fit the cap to the charging valve to
the specified torque.
(5) Remove the blank caps, and fully open the spindles of the 2-way valves
and the 3-way valves with a hexagon wrench [Torque: 6~7 N·m (60 to
70 kgf·cm)].
(6) Tighten the blank caps of the 2-way valve and the 3-way valve to the
specified torque.
CAUTION
(1) Do not purge the air with refrigerants, but use a vacuum
pump to vacuum the installation! There is no extra re-
frigerant in the outdoor unit for air purging!
(2) Use a vacuum pump and gauge manifold and charg-
ing hose for R410A exclusively. Using the same
vacuum for different refrigerants may damage the
vacuum pump or the unit.
(3) After connecting the piping, check the all joints for
gas leakage with gas leak detector.
(4) When adding refrigerant, add the refrigerant from the
charging port at the completion of work.
(5) The maximum length of the piping is 30 m. If the units
are further apart than this, correct operation can not
be guaranteed.
Additional charge
Refrigerant suitable for a piping length of 15 m is charged in the
outdoor unit at the factory.
When the piping is longer than 15 m, additional charging is neces-
sary.
For the additional amount, see the table below.
06J005_9314963032-01
2
Fig. 5
Centering marks
Wall hook bracket
Lower
80 mm
65 mm hole
65 mm
hole
hole
Fasten with
vinyl tape
(Wall pipe)
(Wall cap)
Wall
(Inside)
Fig. 6
Wall hook bracket
Tapping screw
(size: large; quantity: 8)
Wall hook
bracket
CAUTION
Install the wall hook bracket horizontally and perpen-
dicularly.
Fig. 7
Right outlet
Piping (on top)
Rear outlet
Bottom outlet
Drain hose (on bottom)
Bind with vinyl tape
Drain cap
Drain hose
Removal method of
Installation method of
drain hose
drain hose
●
●
Remove the screw at the left
Vertically insert the drain hose
of drain hose and pull out
till the drain furniture aligns
with the screw hole of drain
drain hose.
cock. After inserting and be-
Screw
Drain hose
fore replacing, please reinstall
and fix the removed screws.
Drain cock
Drain furniture
Drain furniture
Drain hose
WARNING
(3) Since the drain water flows out of the outdoor unit during heating
operation, install the drain pipe and connect it to a commercial 16
mm hose. (Reverse cycle model only)
(4) When installing the drain pipe, plug all the holes other than the drain
pipe mounting hole in the bottom of the outdoor unit with putty so
there is no water leakage. (Reverse cycle model only)
CAUTION
When the outdoor temperature is 0 °C or less, do not use
the accessory drain pipe and drain cap. If the drain pipe
and drain cap are used, the drain water in the pipe may freeze
in extremely cold weather. (Reverse cycle model only)
Drain pipe mounting hole
Block
Base
Drain pipe
Tightening torque
6.35 mm (1/4 in.)
20 to 25 N·m (200 to 250 kgf·cm)
Blank
cap
15.88 mm (5/8 in.)
30 to 35 N·m (300 to 350 kgf·cm)
Charging port cap
10 to 12 N·m (100 to 120 kgf·cm)
Connecting pipe
Blank cap
Outdoor unit
3-way valve
Service hose
with valve core
Charging port
Cap
Gauge manifold
Use a clean gauge mani-
fold and charging hose
for R410A exclusively.
Lo
Hi
Vacuum pump
Service hose
Pipe length
15 m
Additional refrigerant
None
Between 15 m and 30 m, when using a connection pipe other than
that in the table, charge additional refrigerant with 20g/1 m as the
criteria.
●
For left piping and left rear piping, align the marks on the wall hook
bracket and shape the connection pipe.
●
Bend the Joint pipe at the bend radius of 70 mm or more and install
no more than 35 mm from the wall.
●
After passing the indoor piping and drain hose through the wall hole,
hang the indoor unit on the hooks at the top and bottom of the wall
hook bracket.
[Installing the indoor unit]
Lower
●
Hang the indoor unit from the hooks at the top of the wall hook bracket.
●
Insert the spacer, etc. between the indoor unit and the wall hook
bracket and separate the bottom of the indoor unit from the wall.
10 mm
80 mm
or over
hole
Indoor unit
(Outside)
CONNECTING THE PIPING
CONNECTION
(1) Install the outdoor unit wall cap (supplied with the optional installation set
Leveling method
or procured at the site) to the wall pipe.
(2) Connect the outdoor unit and indoor unit piping.
Hang weight
from here.
(3) After matching the center of the flare surface and tightening the nut hand tight,
tighten the nut to the specified tightening torque with a torque wrench.(Table 2)
FLARING
(1) Cut the connection pipe to the necessary
length with a pipe cutter.
Weight
String
(2) Hold the pipe downward so that cuttings
will not enter the pipe and remove the burrs.
(3) Insert the flare nut onto the pipe and flare
the pipe with a flaring tool.
Insert the flare nut (always use the flare nut
attached to the indoor and outdoor units re-
spectively) onto the pipe and perform the flare
processing with a flare tool.
Use the special R410A flare tool, or the conv-
entional (for R22) flare tool.
When using the conventional flare tool, always
use an allowance adjustment gauge and se-
cure the A dimension shown in table 3.
Fig. 9
Tighten with
two wrenches.
Torque wrench
For left outlet
Indoor unit pipe
Connection pipe
piping, cut off the
piping outlet
INDOOR UNIT WIRING
cutting groove
with a hacksaw.
(1) Open the open panel.
Remove the drain
(2) Remove the top cover.
cap by pulling at
(3) Remove the cord clamp.
the projection at
(4) Route the connection cord from behind the indoor unit.
the end of the cap
Fig. 10
with pliers, etc.
Top cover
Cord clamp
Screw
Screw
Screw hole
(1) Match the terminal block numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the elec-
Screw
tric parts.
(2) Connect the connection cords firmly to the terminal
block. Imperfect installation may cause a fire.
ELECTRICAL WIRING (OUTDOOR UNIT)
(1) Service cover removal
• Remove the two mounting screws.
• Remove the service cover by pushing downwards.
(2) Valve cover removal.
• Remove the one mounting screw.
• Remove the valve cover by sliding upward.
(3) Connect the power supply cord and the connection cord to terminal.
(4) Fasten the power supply cord and connection cord with cord clamp.
(5) Power supply cord and connection cord should be fixed with cable clip as
shown in the figure.
Fill in a gap at the entrance of the cords with insulation (seal).
(6) Put the service cover and valve cover back after completion of the work.
Connection cord
Cord
(indoor unit and
clamp
outdoor unit
connection cord)
Keep the earth wire longer than the other wires.
Earth wire
CAUTION
When connecting the power supply cord, make sure that the phase
of the power supply matches with the phase of
the terminal board. If the phases do not match, the
compressor will rotate in reverse and will not be able to
compress.
Do not make power supply cord and connection cord come in
contact with valve (Gas).
Hexagon wrench
Use a 4 mm
hexagon wrench.
FINISHING
(1) Insulate between pipes.
●
For rear, right, and bottom piping, overlap the connection pipe heat insulation and
indoor unit pipe heat insulation and bind them with vinyl tape so that there is no gap.
CAUTION
●
For left and left rear piping, butt the connection pipe heat insulation and indoor unit
pipe heat insulation together and bind them with and vinyl tape so that there is no gap.
●
For left and left rear piping, wrap the area which accommodates the rear piping hous-
ing section with cloth tape.
●
For left and left rear piping, bind the connection cord to the top of the pipe with vinyl
tape.
●
For left and left rear piping, bundle the piping and drain hose together by wrapping
them with cloth tape over the range within which they fit into the rear piping housing
section.
(2) Temporarily fasten the connection cord along the connection pipe with vinyl tape. (Wrap
to about 1/3 the width of the tape from the bottom of the pipe so that water does not
enter.)
(3) Fasten the connection pipe to the outside wall with saddles, etc.
(4) Fill the gap between the outside wall pipe hole and the pipe with sealer so that rain
water and wind cannot blow in.
(5) Fasten the drain hose to the outside wall, etc.
TEST RUNNING
30 m
●
Perform test operation and check items 1 and 2 below.
●
For the test operation method, refer to the operating manual.
300 g
●
The outdoor unit, may not operate, depending on the room temperature. In this case,
press the test run button on the remote control unit while the air conditioner is running,
(Point the transmitter section of the remote control unit toward the air conditioner and
press the test run button with the tip of a ball-point pen, etc.)
●
To end test operation, press the remote control unit START/STOP button.
(When the air conditioner is run by pressing the test run button, the OPERATION indicator
lamp and TIMER indicator lamp will simultaneously flash slowly.)
2006.09.26, 15:40
Fig. 8
Wall hook bracket
Joint pipe
Small piping
(Spacer)
Wall hook bracket
Indoor unit
(Lower projections)
After hooking the indoor unit to the top hook, hook the fittings of the indoor unit
to the two bottom hooks while lowering the unit and pushing it against the wall.
Table 2
Flare nut tightening torque
Flare nut
Tightening torque
15.7 to 17.6 N•m
6.35 mm dia.
(160 to 180 kgf•cm)
49.0 to 53.9 N•m
12.7 mm dia.
(500 to 550 kgf•cm)
15.88 mm dia.
(630 to 750 kgf•cm)
Check if [L] is flared uniformly
and is not cracked or scratched.
Table 3
Pipe outside diameter
Pipe outside
Flash tool for
diameter
R410A, clutch type
ø 6.35 mm (1/4")
ø 12.7 mm (1/2")
ø 15.88 mm (5/8")
Die
A
(1) Fasten a flare nut with a torque wrench as instructed in this
Pipe
manual. If fastened too tight, the flare nut may be broken after
a long period of time and cause a leakage of refrigerant.
(2) During installation, make sure that the refrigerant pipe is at-
Wrench (fixed)
tached firmly before you run the compressor. Do not operate
the compressor under the condition of refrigerant piping not
Flare nut
attached properly with 2-way or 3-way valve open. This may
cause abnormal pressure in the refrigeration cycle that leads to
To prevent gas leakage, coat the flare
breakage and even injury.
surface with refrigerator oil.
(5) Connect the end of the connection cord securely to the terminal block.
(6) Secure the connection cord with the cord clamp.
(7) Install the top cover with the screw.
(8) Close the open panel.
Open panel
Connection
cord
CAUTION
(3) Always fasten the outside covering of the connec-
tion cord with the cord clamp. (If the insulator is
chafed, electric leakage may occur.)
(4) Securely earth the power cord plug.
(5) Do not use the earth screw for an external connec-
tor. Only use for interconnection between two units.
Direction of the service
panel removal
Control box
Terminal
Power supply cord
Hook
(4 places)
Power supply cord
or connection
cord
1 Before starting work, check that power is not being
supplied to the indoor unit and outdoor unit.
2 Match the terminal board numbers and connection
cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric parts.
3 Connect the connection cords firmly to the terminal board.
Power supply cord
Imperfect installation may cause a fire.
and connection cord
4 Always fasten the outside covering of the connection cord
with the cord clamp. (If the insulator is chafed, electric leak-
age may occur.)
5 Always connect the ground wire.
Valve (Gas)
Fig. 15
Connection pipe
(heat insulation)
Left piping
Connection
cord
Connection piping
Drain hose
Holder
(Included with the piping
set sold separately or
obtained locally)
Fig. 16
1. INDOOR UNIT
(1) Is operation of each button on the remote control unit normal?
(2) Does each lamp light normally?
(3) Do the air flow-direction louver operate normally?
(4) Is the drain normal?
2. OUTDOOR UNIT
(1) Is there any abnormal noise and vibration during operation?
(2) Will noise, wind, or drain water from the unit disturb the neighbors?
(3) Is there any gas leakage?
Alignment marks
Large piping
Upper hooks
Lower slots
L dimension
1.4 to 1.7 mm
1.9 to 2.2 mm
63 to 75 N•m
2.2 to 2.4 mm
A (mm)
Conventional (R22) flare tool
Clutch type
Wing nut type
0 to 0.5
1.0 to 1.5
1.5 to 2.0
1.0 to 1.5
1.5 to 2.0
0 to 0.5
0 to 0.5
1.0 to 1.5
1.5 to 2.0
CAUTION
Open panel
Cord clamp
Connec-
Screw
tion cord
Hook
(3 places)
Service cover
Valve cover
Power supply cord and
connection cord
Cable clip
Insulation
(Seal)
WARNING
Overlap the insulation
Butt connection pipe (heat in-
sulation) against the indoor
unit pipe (heat insulation) and
wrap with seal A so that there
Indoor unit pipe
is no gap.
(heat insullation)
Seal A
Vinyl tape
Pipe
Wrap with cloth tape
Drain hose
Cloth tape
For connection from the left rear
(Wall pipe)
Connection
cord
Connection
piping
Drain hose
Drain hose
BAD
BAD
BAD
Lifted up
Bent Immersed in water
(Outside wall cap)
(Saddle)
(Sealer putty)
Wall
(Outdoors)
Pipe
Fig. 17
Test run button
9314963032-01
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