General ARG60F, ARG60FUAK, AOG60FMAYT, ARG60U, ARG60UUAK Installation Manual
...
Refrigerant
R410A
Duct Type
SPLIT TYPE AIR CONDITIONER
INSTALLATION INSTRUCTION
SHEET
(PART NO. 9372633052)
Indoor unit is an appliance not accessible to the general public.
For authorized service personnel only.
WARNING
CAUTION
This air conditioner uses new refrigerant HFC (R410A).
The basic installation work procedures are the same as conventional refrigerant models.
However, pay careful attention to the following points:
Since the working pressure is 1.6 times higher than that of conventional refrigerant models, some of the
piping and installation and service tools are special. (See the table below.)
Especially, when replacing a conventional refrigerant model with a new refrigerant R410A model, always
replace the conventional piping and flare nuts with the R410A piping and flare nuts.
Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous
charging with conventional refrigerant and for safety. Therefore, check beforehand. [The charging port
thread diameter for R410A is 1/2 UNF 20 threads per inch.]
Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant models.
Also, when storing the piping, securely seal the openings by pinching, taping, etc.
When charging the refrigerant, take into account the slight change in the composition of the gas and liquid
phases, and always charge from the liquid phase side whose composition is stable.
When moving, if the compressor stops during pump down, close the valve immediately.
Special tools for R410A
Tool name
Gauge manifold
Charge hose
Vacuum pump
Gas leakage detector
Copper pipes
It is necessary to use seamless copper pipes and it is desirable that the
amount of residual oil is less than 40 mg/10m. Do not use copper pipes
having a collapsed, deformed or discolored portion (especially on the interior surface). Otherwise, the expansion valve or capillary tube may become
blocked with contaminants.
As an air conditioner using R410A incurs pressure higher than when using
conventional refrigerant, it is necessary to choose adequate materials.
Thicknesses of copper pipes used with R410A are as shown in the table.
Never use copper pipes thinner than that in the table even when it is available on the market.
This mark indicates procedures which, if improperly performed, might lead to the death or
serious injury of the user.
This mark indicates procedures which, if improperly performed, might possibly result in
personal harm to the user, or damage to property.
Contents of change
Pressure is high and cannot be measured with a conventional gauge. To prevent erroneous mixing
of other refrigerants, the diameter of each port has been changed.
It is recommended the gauge with seals –0.1 to 5.3 MPa (–76 cmHg to 53 kgf/cm2) for high pressure. –0.1 to 3.8 MPa (–76 cmHg to 38 kgf/cm2) for low pressure.
To increase pressure resistance, the hose material and base size were changed.
A conventional vacuum pump can be used by installing a vacuum pump adapter.
Special gas leakage detector for HFC refrigerant R410A.
Thicknesses of Annealed Copper Pipes (R410A)
Pipe outside diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Thickness
0.80 mm
0.80 mm
0.80 mm
1.00 mm
1.20 mm
CONNECTING PIPE REQUIREMENT
CAUTION
The maximum lengths of this product are shown in the following table. If the units are further apart than this,
correct operation can not be guaranteed.
Pipe outside diameter
Liquid
9.52 mm (3/8 in.)
• Use pipe with water-resistant heat insulation.
Gas
19.05 mm (3/4 in.)
MAX.
50 m
Pipe length
MIN.
5 m
Maximum height
(between indoor and outdoor)
30 m
CAUTION
Install heat insulation around both the gas and liquid pipes. Failure to do so may cause water leaks.
Use heat insulation with heat resistance above 120 °C. (Reverse cycle model only)
In addition, if the humidity level at the installation location of the refrigerant piping is expected to exceed 70%,
install heat insulation around the refrigerant piping. If the expected humidity level is 70-80%, use heat insulation
that is 15 mm or thicker and if the expected humidity exceeds 80%, use heat insulation that is 20 mm or thicker.
If heat insulation is used that is not as thick as specified, condensation may form on the surface of the insulation.
In addition, use heat insulation with heat conductivity of 0.045 W/(m·K) or less (at 20 °C).
ELECTRICAL REQUIREMENT
• Electric wire size and breaker capacity:
Power supply cord (mm2)
MAX.
4.0
• Always use H07RN-F or equivalent to the connection cord.
• Install all electrical works in accordance to the standard.
• Install the disconnect device with a contact gap of at least 3 mm in all poles nearby the units. (Both indoor unit and outdoor unit)
• Install the circuit breaker nearby the units.
MIN.
2.5
Connection cord (mm2)
MAX.
2.5
MIN.
1.0
Breaker capacity (A)
20
SELECTING THE MOUNTING POSITION
Decide the mounting position with the customer as follows:
WARNING
Select installation locations that can properly support the weight of the indoor and outdoor units. Install the units
securely so that they do not topple or fall.
CAUTION
Do not install where there is the danger of combustible gas leakage.
Do not install the unit near heat source of heat, steam, or flammable gas.
If children under 10 years old may approach the unit, take preventive measures so that they cannot reach the
unit.
INDOOR UNIT
(1) Install the indoor unit on a place having a sufficient strength so that it withstand against the
weight of the indoor unit.
(2) The inlet and outlet ports should not be obstructed; the air should be able to blow all over
the room.
(3) Leave the space required to service the air conditioner.
(4) Install the unit where the drain pipe can be easily installed.
(5) Providing as much space as possible between the indoor unit and the ceiling will make work
much easier.
(For maintenance)
(1) Maintenance work of the control box is possible with the maintenance hole of the measure-
ment shown in the figure.
(2) If maintenance work is to be done from the bottom side, the maintenance hole needs to be
larger than the outside dimension of the indoor unit.
(3) If maintenance work is to be done from the top, keep the space of the more than 500 mm
between the indoor unit and ceiling.
20 mm or more
Control box
Maintenance hole
450 mm
(Service space)
450 mm
500 mm
500 mm
INSTALLATION
PROCEDURE
1
INDOOR UNIT
INSTALLATION
WARNING
Install the air conditioner in a location which can
withstand a load of at least five times the weight
of the main unit and which will not amplify sound
or vibration.
If the installation location is not strong enough,
the indoor unit may fall and cause injuries.
If the job is done with the panel frame only, there
is a risk that the unit will come loose. Please take
care.
CAUTION
For installation, refer to the technical data.
RECOMMENDED RANGE OF
EXTERNAL STATIC PRESSURE
100Pa~250Pa
1. INSTALLING THE HANGERS
Hanging bolt installation diagram.
400 mm
155 mm
Hanging bolt M10
(Obtained locally)
Washer
(Obtained
locally)
500 mm
585 mm
1,050 mm
1,000 mm
AIR
1,080 mm
Special nut A
AIR
AIR
Hanger
Special nut B
85 mm
CAUTION
Fasten the unit securely with special nuts A and B.
2. LEVELING
Use the procedure in the following figure to adjust the levelness.
Level meter
B
The side A of the unit with the drain port should be slightly lower
than the opposite side B of the unit. The height difference between
sides A and B should be from 0 to 20 mm.
A
3. MOUNTING THE DUCT
Follow the procedure in the following figure to install the ducts.
325 mm
✽ 14 mm
✽ 27 mm
295 mm
✽ Spacing between flange and drain pan.
14 mm
26 mm
CAUTION
If an intake duct is installed, take care not to damage the temperature sensor (the temperature sen-
sor is attached to the intake port flange).
Be sure to install the air inlet grille and the air
outlet grille for air circulation. The correct tem-
perature cannot be detected. Grills must be installed so that man can’t touch unit fan, and can’t
be removed by only hand operation with tool.
Air Outlet Grille Air inlet Grille
(Room)
Be sure to install the air filter in the air inlet. If the
air filter is not installed, the heat exchanger may
be clogged and its performance may decrease.
865 mm
Intake port flange
Outlet port flange
850 mm
Unit
4. INSTALLING THE DRAIN PIPES
Install the drain pipes according to the measurements given in
the following figure.
Flange position for connecting the drain pipes
129 mm
123 mm
41 mm
208 mm
356 mm
108 mm
Main drain pipe
ø25.4 mm (O.D.)
Safety drain pipe
ø 25.4 mm (O.D.)
CAUTION
This product has drain ports in two locations.
Follow the procedure in the figure to connect
drain pipes to each of them.
Be sure to properly insulate the drain pipes.
Use general hard polyvinyl chloride pipe (VP25) and connect it
with adhesive (polyvinyl chloride) so that there is no leakage.
Do not perform air bleeding.
Main drain pipe
Provide one trap on the main drain pipe near the indoor unit.
Unit
Trap
Safety drain
There is no need to provide a trap for the safety drain pipe. If
the safety drain pipe is connected to the main drain pipe,
make the connection below the trap on the main drain pipe.
Unit
Drain pipe (safety)
• Once installation is complete, check the flow of the drain water.
371 mm
= 100 mm (approx.)
H
1
= 50-100 mm
H
2
Drain pipe (main)
1
H
2
H
Drain pipe (main)
2
OUTDOOR UNIT
INSTALLATION
1. OUTDOOR UNIT PROCESSING
(1) Outdoor unit to be fasten with bolts at the four places indi-
cated by the arrows without fail.
Drain cap
Bottom side
650 mm
Drain pipe
mounting place
(2) Fix securely with bolts on a solid block. (Use 4 sets of com-
mercially available M10 bolt, nut and washer.)
(3) Since the drain water flows out of the outdoor unit during
heating operation, install the drain pipe and connect it to an
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)
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
mounting place
Bolt
CAUTION
Drain pipe
4-ø 12 mm hole
Nut
Block
Base
370 mm
STANDARD PARTS
The following installation parts are furnished. Use them as required.
INDOOR UNIT ACCESSORIES
Name and Shape
Special nut A
(large flange)
Special nut B
(small flange)
Coupler heat
insulation
(large)
Coupler heat
insulation
(small)
Binder
Remote
controller
Tapping screw
(flush heads)
Remote controller cord
Q’ty
4
4
1
1
1
1
2
1
Application
For suspending the indoor
unit from ceiling
For indoor side pipe joint
(gas pipe)
For indoor side pipe joint
(liquid pipe)
For fixing the remote
controller cord
For installing the remote
controller
For connecting the remote
controller
OPTIONAL PARTS
The following options are available.
•Long-life filter : UTD-LF60KA (P/N 9017230004).
• Simple remote controller : UTB-YPB (P/N 9077582006)
•Remote sensor : UTD-RS100 (P/N 9072619004)
• External control set : UTD-ECS5A (P/N 9077359004)
OUTDOOR UNIT ACCESSORIES
Name and Shape
Drain pipe
Drain cap
Insulation (seal)
Q’ty
1
2
1
Application
For outdoor unit drain
piping work (May not be
supplied, depending on
the model.)
For filling in a gap at the
entrance of connection
cords.
OUTDOOR UNIT
WARNING
Install the unit where it will not be tilted by more than 5˚.
When installing the outdoor unit where it may exposed to strong wind, fasten it securely.
(1) Install the outdoor unit in a location which can withstand the weight of the unit and vibration, and which can install horizontally.
(2) Provide the indicated space to ensure good airflow.
(3) If possible, do not install the unit where it will be exposed to direct sunlight.
(If necessary, install a blind that does not interfere with the airflow.)
(4) Do not install the unit near a source of heat, steam, or flammable gas.
(5) During heating operation, drain water flows from the outdoor unit.
Therefore, install the outdoor unit in a place where the drain water flow will not be obstructed. (Reverse cycle model only)
(6) Do not install the unit where strong wind blows or where it is very dusty.
(7) Do not install the unit where people pass.
(8) Install the outdoor unit in a place where it will be free from being dirty or getting wet by rain as much as possible.
(9) Install the unit where connection to the indoor unit is easy.
• When there are obstacles at the back side.
100 mm
or more
• When there are obstacles at the back, side(s), and top.
*
600 – 1000 mm
100 – 300 mm
AIR
*
250 mm or more
(Service space)
* If the space is larger than that is stated, the condition will
be the same as that there are no obstacles.
300 mm
or more
• When there are obstacles at the back and front sides.
AIR
600 mm
or more
• When there are obstacles at the back side with the installation of
more than one unit.
250 mm
or more
250 mm
or more
100 mm
or more
300 mm
or more
3
CONNECTING THE
PIPE
CAUTION
Do not use mineral oil on flared part. Prevent mineral oil from getting into the system as this would
reduce the lifetime of the units.
While welding the pipes, be sure to blow dry nitrogen gas through them.
The maximum lengths of this product are shown
in the table. If the units are further apart than this,
correct operation can not be guaranteed.
1. FLARING
(1) Cut the connection pipe to the necessary length with a pipe
cutter.
(2) Hold the pipe downward so that cuttings will not enter the pipe
and remove the burrs.
(3) Insert the flare nut (always use the flare nut attached to the
indoor and outdoor units respectively) onto the pipe and perform the flare processing with a flare tool.
Use the special R410A flare tool, or the conventional (for R22)
flare tool.
Check if [L] is flared uniformly
and is not cracked or scratched.
Die
L
Pipe outside diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Pipe outside diameter Dimension B (mm)
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
When using conventional flare tools to flare R410A pipes, the dimension A should be approximately 0.5 mm more than indicated in
the table (for flaring with R410A flare tools) to achieve the specified
flaring. Use a thickness gauge to measure the dimension A.
Flare tool for R410A, clutch type
A
Pipe
Dimension A (mm)
0 to 0.5
9.1
13.2
16.6
19.7
24.0
0
-0.4
B
Width across flats
Pipe outside
diameter
6.35 mm (1/4 in.)
9.52 mm (3/8 in.)
12.70 mm (1/2 in.)
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Width across flats
of Flare nut
17 mm
22 mm
26 mm
29 mm
36 mm
2. BENDING PIPES
The pipes are shaped by your hans. Be careful not to collapse them.
Do not bend the pipes in an angle more than 90°.
When pipes are repeatedly bend or stretched, the material will
harden, making it diffecult to bend or stretch them any more. Do not
bend or stretch the pipes more than three times.
CAUTION
To prevent breaking of the pipe, avoid sharp
bends.
Bend the pipe with a radius of curvature of 150
mm or over.
If the pipe is bent repeatedly at the same place, it
will break.
3. CONNECTION PIPES
Indoor unit
(1) Detach the caps and plugs from the pipes.
CAUTION
Be sure to apply the pipe against the port on the
indoor unit correctly. If the centering is improper,
the flare nut cannot be tightened smoothly. If the
flare nut is forced to turn, the threads will be damaged.
Do not remove the flare nut from the indoor unit
pipe until immediately before connecting the con-
nection pipe.
(2) Centering the pipe against port on the indoor unit, turn the flare
nut with your hand.
To prevent gas leakage, coat the flare
surface with alkylbenzene oil (HAB).
Do not use mineral oil.
Flare nut
Connection
pipe (liquid)
Flare nut
(3) When the flare nut is tightened properly by your hand, use a
torque wrench to finally tighten it.
Holding spanner
Body side
Torque wrench
Connection
pipe (gas)
CAUTION
Hold the torque wrench at its grip, keeping it in the
right angle with the pipe, in order to tighten the flare
nut correctly.
Flare nut
6.35 mm (1/4 in.) dia.
9.52 mm (3/8 in.) dia.
12.70 mm (1/2 in.) dia.
15.88 mm (5/8 in.) dia.
19.05 mm (3/4 in.) dia.
100 to 110 N·m (1000 to 1100 kgf·cm)
Outdoor unit
Tighten the flare nut of the connection pipe at the outdoor unit
valve connector. The tightening method is the same as that as at
the indoor side.
3-way valve
(liquid)
3-way valve
(gas)
Flare nut
Tightening torque
14 to 18 N·m (140 to 180 kgf·cm)
33 to 42 N·m (330 to 420 kgf·cm)
50 to 62 N·m (500 to 620 kgf·cm)
63 to 77 N·m (630 to 770 kgf·cm)
Flare nut
Connection pipe
(liquid)
Connection pipe
(gas)
4. VACUUM
(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 and 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 3-way
valve to the specified torque.
Tightening torque
6.35 mm (1/4 in.)
Blank
9.52 mm (3/5 in.)
12.70 mm (1/2 in.)
cap
15.88 mm (5/8 in.)
19.05 mm (3/4 in.)
Charging port cap
Outdoor unit
Service hose
with valve core
Gauge manifold
Service hose
Cap
Do not purge the air refrigerants but use a
vacuum pump to vacuum the installation! There
is no extra refrigerant in the outdoor unit for air
purging!
Use a vacuum pump and gauge manifold and
charging hose for R410A exclusively. Using the
same vacuum for different refrigerants may
damage the vacuum pump or the unit.
20 to 25 N·m (200 to 250 kgf·cm)
20 to 25 N·m (200 to 250 kgf·cm)
25 to 30 N·m (250 to 300 kgf·cm)
30 to 35 N·m (300 to 350 kgf·cm)
35 to 40 N·m (350 to 400 kgf·cm)
10 to 12 N·m (100 to 120 kgf·cm)
Connecting pipe
Blank cap
3-way valve
Charging port
Vacuum pump
Use a 4 mm
hexagon wrench.
CAUTION
(Continued to the next page)
Hexagon wrench
9374533052B2front* 04.11.18, 5:22 PM1
CONNECTING THE PIPE
3
5. ADDITIONAL CHARGE
Refrigerant suitable for a piping length of 20 m is charged in the
outdoor unit at the factory.
When the piping is longer than 20 m, additional charging is
necessary.
For the additional amount, see the table below.
Additional
refrigerant (R410A)
Reverse cycle model
Additional
refrigerant (R410A)
Reverse cycle model
Pipe length
Cooling model
Pipe length
Cooling model
20 m
None
None
40m
600 g
800 g
CAUTION
When moving and installing the air conditioner,
do not mix gas other than the specified refrigerant R410A inside the refrigerant cycle.
When charging the refrigerant R410A, always
use an electronic balance for refrigerant charging (to measure the refrigerant by weight).
When charging the refrigerant, take into account the
slight change in the composition of the gas and liquid
phases, and always charge
from the liquid phase side
whose composition is stable.
Add refrigerant from the charging valve after the
completion of the work.
The maximum length of piping is 50 m. If the
units are further apart than this, correct operation can not be guaranteed.
30 m
300 g
400 g
50 m
900 g
1200 g
Gas
Liquid
g/m
30 g/m
40 g/m
g/m
30 g/m
40 g/m
R410A
6. GAS LEAKAGE INSPECTION
CAUTION
After connecting the piping, check the all joints
for gas leakage with gas leak detector.
When inspecting gas leakage, always use the
vacuum pump for pressure. Do not use nitrogen gas.
7. HEAT INSULATION ON THE PIPE JOINTS
(INDOOR SIDE ONLY)
No gaps
Coupler heat insulation
Indoor unit side
Be sure to overlap
the insulation
CAUTION
There should be no gaps between the insulation
and the product.
(Gas and liquid pipes)
4
POWER
WARNING
The rated voltage of this product is 400 V 3 ø 50 Hz.
Before turning on, verify that the voltage is within
the 342 V to 457 V range.
Always use a special branch circuit and install a
special receptacle to supply power to the air conditioner.
Use a special branch circuit breaker and receptacle matched to the capacity of the air conditioner.
(Install in accordance with standard.)
Perform wiring work in accordance with standards so that the air conditioner can be operated
safely and positively.
Install a leakage special branch circuit breaker in
accordance with the related laws and regulations
and electric company standards.
CAUTION
The power source capacity must be the sum of
the air conditioner current and the current of other
electrical appliances. When the current contracted
capacity is insufficient, change the contracted
capacity.
When the voltage is low and the air conditioner is
difficult to start, contact the power company the
voltage raised.
This air conditioner must be connected to a power
source that has an electrical impedance of 0.16 Ω
or less or has a supply current of 100 A or greater.
If the power supply does not meet the specifications, contact the power company.
5
ELECTRICAL WIRING
WARNING
Before starting work, check that power is not being supplied to the indoor unit and outdoor unit.
Match the terminal board numbers and connection cord colors with those of the outdoor unit.
Erroneous wiring may cause burning of the electric parts.
Connect the connection cords firmly to the terminal board. Imperfect installation may cause a fire.
Always fasten the outside covering of the connection cord with the cord clamp. (If the insulator
is chafed, electric leakage may occur.)
Always connect the ground wire.
HOW TO CONNECT WIRING
TO THE TERMINALS
A. For solid core wiring (or F-cable)
(1) Cut the wire end with a wire cutter or wire-cutting pliers,
then strip the insulation to about 25 mm to expose the solid
wire.
(2) Using a screwdriver, remove the terminal screw(s) on the
terminal board.
(3) Using pliers, bend the solid wire to form a loop suitable for
the terminal screw.
(4) Shape the loop wire properly, place it on the terminal board
and tighten securely with the terminal screw using a screwdriver.
B. For strand wiring
(1) Cut the wire end with a wire cutter or wire-cutting pliers,
then strip the insulation to about 10 mm to expose the strand
wiring.
(2) Using a screwdriver, remove the terminal screw(s) on the
terminal board.
(3) Using a round terminal fastener or pliers, securely clamp a
round terminal to each stripped wire end.
(4) Position the round terminal wire, and replace and tighten
the terminal screw using a screwdriver.
CAUTION
Do not bundle the remote controller cord, or wire the
remote controller cord in parallel, with the indoor unit
connection wire (to the outdoor unit) and the power
supply cord. It may cause erroneous operation.
1. CONNECTION DIAGRAMS
Remote controller
Red
White
Black
Indoor unit
side terminal
1
2
3
Power line
1
2
3
Power supply
EARTH
R
S
T
N
1
2
3
Outdoor unit
side terminal
2. CONNECTION CORD PREPARATION
Keep the earth wire longer than the other wires.
30 mm
Earth wire
40 mm or more
Power supply cord
or connection cord
3. INDOOR UNIT
CAUTION
Use care not to mistake the power supply cord
and connection wires when installing.
Install so that the wires for the remote controller
will not come in contact with other connection
wires.
(1) Remove the control box cover and install each connection wire.
Cord clamp
Remote
controller cord
Connection cord
(to outdoor unit)
123
Remote controller
Connection cord
31
2
Outdoor unit
4. OUTDOOR UNIT
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.
(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.
Valve cover
Hook
(4 places)
(3) Connect the power supply cord and the connection cord to
terminal.
(4) Fasten the power supply cord and connection cord with cord
clamp.
Control box
Terminal
Power supply cord
S
TN123
R
Cord clamp
Connection cord
(indoor unit and
outdoor unit
connection cord)
(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).
Power supply cord and
connection cord
Cable clip
(2 places)
Insulation
(Seal)
CAUTION
Do not make power supply cord and connection
cord come in contact with valve (Gas).
Power supply cord
and connection cord
Gap
6
REMOTE CONTROLLER
SETTING
CAUTION
In order to detect the room temperature correctly when using the
temperature sensor of the remote
controller, do not install the remote
controller in a place where it will be
exposed to direct sunlight or
directly below the air outlet of the
indoor unit.
When installing the remote controller and cord
near a source of electromagnetic waves, separate the remote controller from the source of the
electromagnetic waves and use shielded cord.
Do not touch the remote controller PC board and
PC board parts directly with your hands.
1. INSTALLING THE REMOTE CONTROLLER
(1) Open the operation panel on the front of the remote control-
ler, remove the two screws indicated in the following figure,
and then remove the front case of the remote controller.
DAY
CLOCK ADJUST
DAY OFF
ENERGY
SAVE
Screws
Front case
THERMO
SENSOR
Connector
SET BACK
DELETE SET
When installing the remote controller, remove the connector
from the front case. The wires may break if the connector is
not removed and the front case hangs down.
When installing the front case, connect the connector to the
front case.
(2) Install the rear case to the wall, etc. with the two tapping
screws.
Refer to the following information to install the remote controller wires.
Install the remote controller wires so as not to be direct touched
with your hand.
Front case
(back side)
Connector
Rear case
Temperature
sensor
Rear case
Remote controller
wires
2. ROUTING THE REMOTE CONTROLLER
WIRES
(1) Install the remote controller wires to the terminals on the top
of the rear case as shown in the following figure.
(2) Fasten the wires with the binder.
(Example)
Binder
1. Red
2. White
3. Black
3. SETTING THE DIP SWITCHES
When using a battery (memory backup)
ON
OFF
1
2
3
4
5
6
DIP Switch
Change the DIP switch setting to use batteries. (The DIP switch
is not set to use batteries at the factory.)
Change DIP switch No. 6 from OFF to ON.
If batteries are not used, all of the settings stored in memory will
be deleted if there is a power failure.
ON
A. Solid wire B. Strand wire
Loop
Strip 25 mm
Wire
Insulation
Screw with
special washer
Round terminal
Terminal
board
Terminal block
Strip 10 mm
Wire
Round
terminal
Screw with
special washer
Round
terminal
4. SETTING THE ROOM TEMPERATURE DETECTION LOCATION
The detection location of the room temperature can be selected from the following three examples. Choose the detection location that is
best for the installation location.
A. Indoor unit setting (factory setting)
The room temperature is detected by the indoor unit temperature
sensor.
(1)
A
When the THERMO SENSOR button is pressed, the lock display
flashes because the function is locked at the factory.
B. Remote controller setting
The room temperature is detected by the remote controller temperature sensor.
(1) Press the THERMO SENSOR button for 5 seconds or more to
unlock the function. The thermo sensor display flashes and
then disappears when the function is unlocked.
(2) Press the THERMO SENSOR button.
The thermo sensor display appears.
(3) Press the THERMO SENSOR button again for 5 seconds or
more to lock the function. The thermo sensor display flashes
and then remains on when the function is locked.
(4) Make sure that the function is locked.
C.Indoor unit/remote controller setting (room temperature sensor selection)
The temperature sensor of the indoor unit or the remote controller
can be used to detect the room temperature.
(1) Press the THERMO SENSOR button for 5 seconds or more to
unlock the function. The thermo sensor display flashes and
then disappears when the function is unlocked.
(2) Press the THERMO SENSOR button to select the tempera-
ture sensor of the indoor unit or the remote controller.
NOTES
If the function to change the temperature sensor is used as shown in examples A and B (other than example C), be sure to lock the
detection location. If the function is locked, the lock display will flash when the THERMO SENSOR button is pressed.
B
C
Indoor unit
Indoor unit
Indoor unit
Cover box
Loosen the screws (2 locations)
(2) After wiring is complete, secure the remote controller cord, con-
nection cord, and power supply cord with the cord clamps.
(3) Install the control box cover.
7
TEST RUN
CAUTION
Supply power to the crankcase heater for at least 12
hours before the start of operation in winter.
(1) Stop the air conditioner operation.
(2) Press the master control button and the fan control button si-
multaneously for 2 seconds or more to start the test run.
Test run display
(3) Press the start/stop button to stop the test run.
[SELF-DIAGNOSIS]
When the error indication “E:EE” is displayed, follow the following
items to perform the self-diagnosis. “E:EE” indicates an error has
occurred.
1. REMOTE CONTROLLER DISPLAY
(1) Stop the air conditioner operation.
(2) Press the set temperature buttons simultaneously for 5
seconds or more to start the self-diagnosis.
Refer to the following tables for the description of each error
code.
(3) Press the set temperature buttons simultaneously for 5
seconds or more to stop the self-diagnosis.
Error code Error contents
00
01
02
03
04
05
06
07
Communication error
(indoor unit
Communication error
(indoor unit
Room temperature sensor open
Room temperature sensor short-circuited
Indoor heat exchanger temperature sensor open
Indoor heat exchanger temperature sensor shortcircuited
Outdoor heat exchanger temperature sensor
open
Outdoor heat exchanger temperature sensor
short-circuited
Power source connection error
Unit number (usually 0)
SUMOTUWETH FR
EX. Self-diagnosis
remote controller)
outdoor unit)
Error code
SA
08
09
0A
0b
Float switch operated
Outdoor temperature sensor open
Outdoor temperature sensor short-circuited
Hook
(3 places)
Direction of the service
cover removal
Service cover
Error code Error contents
0c
0d
0E
0F
Discharge pipe temperature sensor or compressor
temperature sensor open
Discharge pipe temperature sensor or compressor
temperature sensor short-circuited
Outdoor high pressure abnormal
Discharge pipe temperature or compressor
temperature abnormal
Model abnormal
11
12
Indoor fan abnormal
13
Outdoor signal abnormal
14
Outdoor EEPROM abnormal
2. OUTDOOR UNIT LEDS
Heat & Cool model (reverse cycle) only
When a malfunction occurs in the outdoor unit, the LEDs on the circuit board
light to indicate the error. Refer to the
following table for the description of
each error according to the LEDs.
LED1 LED2 Error contents
flash
1flash
2 flash
3 flash
4 flash
5 flash
6 flash
7 flash
8 flash
9 flash
10 flash
Dislighting
When the fault is cleared, the LED lamp goes off.
However, for discharge pipe temperature abnormal and high pressure abnormal, the LED lamp lights continuously for 24 hours, as
long as the power is not turned off.
flash
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Lighting
Model abnormal or EEPROM abnormal
Power source connection error
Discharge temp. sensor error
Heat exchanger temp. sensor error
Outdoor temp. sensor error
Communication signal error
Indoor unit error
Discharge temp. abnormal
High pressure abnormal
Compressor temp. abnormal
Compressor temp. sensor error
No error. Protect operation
LED layout
LED2
LED1
Power supply
cord
EARTH
Indoor unit
Connection
cord
SPECIAL INSTALLATION
8
METHODS
CAUTION
When setting the rotary switch and DIP switches,
do not touch any other parts on the circuit board
directly with your bare hands.
Be sure to turn off the main power.
1. GROUP CONTROL SYSTEM
A number of indoor units can be operated at the same time using
a single remote controller.
(1) Wiring method (indoor unit to remote controller)
Indoor unit
No. 0
Remote
controller
wire
(2) Rotary switch setting (indoor unit)
Set the unit number of each indoor unit using the rotary switch
on the indoor unit circuit board.
The rotary switch is normally set to 0.
(3) DIP switch setting (remote controller)
Change DIP switch No. 3 on the remote controller from OFF
to ON.
2. DUAL REMOTE CONTROLLERS
(OPTIONAL)
Two separate remote controllers can be used to operate the
indoor units.
(1) Wiring method (indoor unit to remote controller)
Indoor unit
No. 1
1 2 3
1 2 3
Remote
controller
Indoor unit
SW3
Rotary Switch
Indoor unit
Remote
controller
wire
Indoor unit
No. 2
1 2 3 1 2 3 1 2 3
Indoor unit
No. 3
Remote controller
ONOFF
1
2
3
4
5
6
ON
DIP Switch
1 2 3
Remote
Master unit Slave unit
controller
1 2 31 2 3
Valve (Gas)
(6) Put the service cover and valve cover back after completion
of the work.
(2) DIP switch setting (remote controller)
Set the remote controller DIP switch Nos. 1 and 2 according
to the following table.
Number of
remote
controllers
1 (Normal)
2 (Dual)
Number of
remote
controllers
1 (Normal)
2 (Dual)
Master unit
DIP-SW
No. 1
ON
OFF
Slave unit
DIP-SW
No. 1
–
ON
DIP-SW
No. 2
OFF
OFF
DIP-SW
No. 2
–
ON
Remote
controller
ONOFF
1
2
3
4
5
6
DIP Switch
3. CANCELING AUTO RESTART
The auto restart function can be cancelled.
(1) DIP switch setting (indoor unit)
Change the DIP switch (SW2-3) on the indoor unit circuit board
from OFF to ON. The auto restart function will be canceled.
Indoor unit
ON
ON
OFF
DIP Switch
123
SW2
[DIP-SWITCH SETTING]
• Indoor unit
NO.
SW2
DIP-
Switch
1–✽ – Remote sensor setting
2 Edge ✽ Pulse Control input setting
3Validity ✽ Invalidity Auto restart setting
• Remote controller
NO.
1 ✽
2 ✽
3 One unit ✽ Multiple unit
DIP-
Switch
4
5Invalidity Validity ✽
6Invalidity ✽ Val idity
SW state
OFF ON
SW state
OFF ON
Heat &Cool
model
Cooling only
model
Detail
Detail
Dual remote
controller setting
Group control
setting
Model setting
Auto changeover
setting
Memory backup
setting
✽: Factory setting
9374533052B2back 04.11.19, 11:37 AM1
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