General ARG12F, ARG12FUAD, AOG12FSAJ, ARG12U, ARG12UUAD Installation Manual

...

Refrigerant

Duct Type

R410A

SPLIT TYPE AIR CONDITIONER

INSTALLATION INSTRUCTION SHEET

(PART NO. 9364658049)

WARNING

CAUTION

The basic installation work procedures are the same as conventional refrigerant (R22) models. However, pay careful attention to the following points:

(1) Since the working pressure is 1.6 times higher than that of conventional refrigerant (R22) models, some of the piping and

installation and service tools are special. (See the table below.) Especially, when replacing a conventional refrigerant (R22) model with a new refrigerant R410A model, always replace the conventional piping and flare nuts with the R410A piping and flare nuts.

(2) Models that use refrigerant R410A have a different charging port thread diameter to prevent erroneous charging with

conventional refrigerant (R22) and for safety. Therefore, check beforehand. [The charging port thread diameter for R410A is 1/2 UNF 20 threads per inch.]

(3) Be more careful that foreign matter (oil, water, etc.) does not enter the piping than with refrigerant (R22) models. Also, when

storing the piping, securely seal the openings by pinching, taping, etc.

(4) 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.

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/10 m. 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 R22, it is necessary to choose adequate materials. Thicknesses of copper pipes used with R410A are as shown in Table 1. Never use copper pipes thinner than 0.8 mm (Nominal diameter is 1/4 in., 3/8 in. 1/2 in.), 1.0 mm (Nominal diameter is 5/8 in.) 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.

This air conditioner uses new refrigerant HFC (R410A).

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/cm 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.

) for low pressure.

Table 1 Thicknesses of Annealed Copper Pipes

Thickness (mm)

Nominal

diameter (inch)

1/4 3/8 1/2 5/8

Outer diameter

(mm)

6.35

9.52

12.70

15.88

R410A [ref.] R22

0.80 0.80

1.00 1.00

STANDARD PARTS

The following installation parts are furnished. Use them as required.

INDOOR UNIT ACCESSORIES

Name and Shape

Installation template

Hanger

Tapping screw (ø4 × 10)

Special nut A (large flange)

Special nut B (small flange)

Coupler heat insulation (large)

Coupler heat insulation (small)

Binder

Remote controller

Remote controller cord

Tapping screw (ø4 × 16)

Filter

Drain hose insulation

Q’ty

(Small)

(Large)

Application

For positioning the indoor unit

For suspending the indoor unit from ceiling

For installing the hanger

For suspending the indoor unit from ceiling

For indoor side pipe joint (large pipe)

For indoor side pipe joint (small pipe)

For remote controller and remote controller cord binding

For fixing the coupler heat insulation

For connecting the remote controller

For installing the remote controller

7000 and 9000 BTU/h models

12000, 14000, and 18000 BTU/h models

Insulates the drain hose and vinyl hose connection

OUTDOOR UNIT ACCESSORIES

Name and Shape

Drain pipe

Drain cap

7000, 9000, 12000 and 14000 BTU/h models

18000 BTU/h model

Q’ty

For outdoor unit drain piping work [Heat & Cool model (Reverse cycle) only]

Application

INDOOR UNIT INSTALLATION

A. CEILING CONCEALED TYPE

1. INSTALL THE FILTERS

• Install the filters to the unit (Fig. 3).

Fig. 3-(1)

[12000, 14000, and

18000 BTU/h models]

Filter

Fig. 3-(2)

Unit

This unit may also be installed with the air inlet facing down. See also Figs. 11 and 12 for such cases.

2. DRILLING HOLES FOR BOLTS AND INSTALLING THE BOLTS

• Using the installation template, drill holes for bolts (4 holes).(Fig. 4)

Fig. 4

3. INSTALLING THE HANGERS

• Fasten the hanging bolts to the ceiling and install special nuts A and B.

Fig. 5

[7000 and 9000 BTU/h models]

Filter

Installation template

Drilling position for bolts

M10 Hanging bolt

Special nut A

Special nut B

• Install the hangers to the unit (4 places).

Fig. 6

Hanger

Air

Hanger

Tapping screw

• Hang the unit. (1) Pass the hanging bolts through the hangers (4 places).

Fig. 7

Hanger bolt Hanger

Unit

CAUTION

Fasten the unit securely with special nuts A and B.

4. LEVELING

Base horizontal direction leveling on top of the unit.

Fig. 8

Ceiling

Level

10 mm

Fig. 9

Air

or less

10 mm

or less

Level

Drain side

5. SERVICE HOLE DIMENSIONS

Open a service hole with the dimensions shown Fig. 10.

Fig. 10

Unit

10 cm (4”)

or more

Service hole

Control box

30 cm (1’) or more

B. FLOOR STANDING CONCEALED TYPE

1. INSTALL THE FILTERS

• Remove the 4 tapping screws, and then remove cover.

• Install the cover with the 4 tapping screws as shown in the illustration below.

Fig. 11

[12000, 14000, and

18000 BTU/h models]

Tapping screw

• Install the filters to the unit refer to Fig. 3-(2).

Fig. 12

[12000, 14000, and

18000 BTU/h models]

Filter

2. INSTALLING THE HANGERS

• Install the hangers to the unit (4 places).

Fig. 13

[7000 and 9000 BTU/h models]

Cover

[7000 and 9000 BTU/h models]

Hanger

Tapping screw

Cover

Filter

3. DRILLING HOLES FOR BOLTS AND INSTALLING THE BOLTS

• Drilling position for bolts.

Fig. 14

)

[7000 and 9000 BTU/h models]

59.6 cm (23-1/2’)

’

17 cm

(6-3/4

[12000, 14000, and 18000 BTU/h models]

88.6 cm (34-7/8’)

17 cm

CAUTION

Secure with an M10 anchor bolts. If securing the unit to the floor is difficult, first build a stand or platform.

Fig. 15

M10

30 to 50 mm (1-3/16” to 2-1/36”)

4. INSTALL THE UNIT

• Fix the unit.

Install the unit and fasten with special nut B.

Fig. 16

Unit

Special nut B

5. LEVELING

Base horizontal and vertical direction leveling on top of the unit.

Fig. 17

Fig. 18

In order to prevent water from leaking around the outlet port, make sure insulate it (on both the CEILING CONCEALED type and the FLOOR STANDING CONCEALED type).

Level

10 mm

or less

CAUTION

Drain side

)

’

(6-3/4

For authorized service personnel only.

WARNING

(1) For the room air conditioner to operate satisfactorily, install it as outlined in this installation instruction sheet.

(2) Connect the indoor unit and outdoor unit with the room air conditioner piping and cords available standards parts. This

installation instruction sheet describes the correct connections using the installation set available from our standard parts.

(3) Installation work must be performed in accordance with national wiring standards by authorized personnel only.

(4) If refrigerant leaks while work is being carried out, ventilate the area. If the refrigerant comes in contact with a flame, it

produces a toxic gas.

(5) Do not use an extension cord.

(6) Do not turn on the power until all installation work is complete.

••

• Be careful not to scratch the room air conditioner when handling it.

••

• After installation, explain correct operation to the customer, using the operating manual.

••

• Let the customer keep this installation instruction sheet because it is used when the air conditioner is serviced or moved.

••

SELECTING THE MOUNTING POSITION

WARNING

Install at a place that can withstand the weight of the indoor and outdoor units and install positively so that the units will not topple or fall.

CAUTION

(1) Do not install where there is the danger of combustible gas leakage.

(2) Do not install near heat sources.

(3) If children under 10 years old may approach the unit, take preventive measures so that they cannot reach the unit.

(4) Take precautions to prevent the unit from falling.

Decide the mounting position with the customer as follows:

INDOOR UNIT

(1) Install the indoor unit level on a strong wall, floor, ceiling which is not sub-

ject to vibration.

(2) The inlet and outlet ports should not be obstructed : the air should be able

to blow all over the room. (3) Install the unit near an electric outlet or special branch circuit. (4) Do not install the unit where it will be exposed to direct sunlight. (5) Install the unit where connection to the outdoor unit is easy. (6) Install the unit where the drain pipe can be easily installed. (7) Take servicing, etc. into consideration and leave the spaces shown in Fig.1.

Also install the unit where the filter can be removed. (8) Install the indoor unit where vibrations and noise are not amplified. (9) When installing the unit on the floor, provide an opening that will allow

sufficient air to reach the air inlet panel.

Fig. 1

Strong and durable ceiling

Indoor unit

Left side

10 cm (4”) or more

Left side

Strong and durable floor

10 cm (4”) or more 30 cm (1’) or more

Right side (PIPE side)

30 cm (1’) or more

3 cm (1”)

or more

Right side

3 cm (1”)

or more

OUTDOOR UNIT

WARNING

(1) Install the unit where it will not be tilted by more than 5˚.

(2) When installing the outdoor unit where it may exposed to strong wind, fasten it securely.

(1) If possible, do not install the unit where it will exposed to direct sunlight. (If necessary, install a blind that does not interfere with the air flow.) (2) Install the outdoor unit in a place where it will be free from being dirty or getting wet by rain as much as possible. (3) Install the unit when connection to the indoor unit is easy. (4) 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) (5) Do not place animals and plants in the path of the warm air. (6) Take the air conditioner weight into account and select a place where noise and vibration are small. (7) Select a place so that the warm air and noise from the air conditioner do not disturb neighbors. (8) Provide the space shown in Fig. 2 so that the air flow is not blocked. Also for efficient operation, leave open three of the four directions front, rear, and both

sides.

Fig. 2

[18000 BTU/h model]

30 cm (1’) or over

Air

60 cm (2’) or over

30 cm (1’) or over

[7000, 9000, 12000 and 14000 BTU/h models]

10 cm (4”) or over

60 cm (2’) or

over

60 cm (2’) or over

10 cm (4”) or over

CONNECTION PIPE REQUIREMENT

Table 2

MODEL

Diameter

Maximum length

Maximum Height (between indoor and outdoor)

••

• Use pipe with water-resistant heat insulation.

••

Small Large

7000, 9000 and

12000 BTU/h models

6.35 mm (1/4 in.) 6.35 mm (1/4 in.) 6.35 mm (1/4 in.)

9.52 mm (3/8 in.) 12.70 mm (1/2 in.) 15.88 mm (5/8 in.)

15 m (49 ft) 15 m (49 ft) 20 m (66 ft)

8 m (26 ft) 8 m (26 ft) 8 m (26 ft)

14000 BTU/h 18000 BTU/h

model model

ELECTRICAL REQUIREMENT

••

• Electric wire size and fuse capacity:

••

Table 3

MODEL

Power supply cord (mm2)

Connection cord (mm2)

Fuse capacity (A)

••

• Always use H07RN-F or equivalent to the connection cord.

••

• Install the disconnect device with a contact gap of at least 3 mm nearby the units. (Both

••

indoor unit and outdoor unit)

7000 BTU/h model

9000 BTU/h model

MAX.

MIN.

MAX.

MIN.

3.0 3.0 3.0

1.5 2.0 2.5

2.5 2.5 2.5

1.5 1.5 1.5 10 15 20

12000 BTU/h model

14000 BTU/h model

18000 BTU/h model

OUTDOOR UNIT INSTALLATION

WARNING

(1) Install the unit where it will not be tilted by more than 5˚.

(2) When installing the outdoor unit where it may exposed

to strong wind, fasten it securely.

• Set the unit on a strong stand, such as one made of concrete blocks to minimize shock and vibration.

• Do not set the unit directly on the ground because it will cause trouble.

• Since the drain water flows out of the outdoor unit during heating op-

eration, install the drain pipe and connect it to an commercial 16 mm hose. (Heat & Cool model (Reverse cycle) only)

• When installing the drain pipe, plug all the holes (• hole at one place) other than the drain pipe mounting hole in the bottom of the outdoor unit with putty so there is no water leakage. (Fig. 19) (Heat & Cool model (Reverse cycle) only)

CAUTION

Installation in cold regions. 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.)

Fig. 19

[7000, 9000, 12000 and 14000 BTU/h models]

Bottom

Drain cap

Drain pipe mounting hole

[18000 BTU/h model]

Bottom

Drain cap

Drain pipe mounting hole

Air flow

285 mm (11-7/32”)

504 mm (21-1/4”)

Bottom plate

Drain pipe

Air flow

343 mm (13-1/2”)

603 mm (23-23/32”)

Bottom plate

Drain pipe

CONNECTING THE PIPING

WARNING

Do not use the existing (for R22) piping and flare nuts.

• If the existing materials are used, the pressure inside the refrigerant cycle will rise and cause breakage, injury, etc. (Use the special R410A materials.)

CAUTION

(1) 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.

(2) While welding the pipes, be sure to blow dry nitrogen

gas through them.

(3) The maximum lengths of this product are shown in ta-

ble 2. If the units are further apart than this, correct operation can not be guaranteed.

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).

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. When using the conventional flare tool, always use an allowance adjustment gauge and secure the A dimension shown in table 4.

Fig. 20

Check if [L] is flared uniformly and is not cracked or scratched.

Die

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.)

Table 4 Pipe outside diameter

A (mm)

Flare tool for

R410A, clutch type

0 to 0.5 0 to 0.5 0 to 0.5 0 to 0.5

Conventional (R22) flare tool Clutch type Wing nut type

1.0 to 1.5 1.5 to 2.0

1.0 to 1.5 2.0 to 2.5

Pipe

2. BENDING PIPES

(1) When bending the pipe, be careful not to crush it. (2) To prevent crushing of the pipe, do not bend the pipe at a radius cur-

vature of 100 mm or over.

(3) If the copper pipe is bend the pipe or pulled to often, it will become

stiff. Do not bend the pipes more than three times at one place.

3. CONNECTION

(1) Install the outdoor unit wall cap (supplied with the optional installation

set or procured at the site) to the wall hole pipe. (2) Connect the outdoor unit and indoor unit piping. (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.

Fig. 21

Tighten with two wrenches.

Wrench (fixed)

Flare nut

Torque wrench

Indoor unit pipe

Connection pipe

To prevent gas leakage, coat the flare surface with alkylbenzene oil (HAB). Do not use mineral oil.

Table 5 Flare nut tightening torque

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.

Do not remove the cap from the connection pipe before connecting the pipe.

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)

CAUTION

Be sure to connect the large pipe after connecting the small pipe completely.

• Lay the piping.

A. CEILING CONCEALED TYPE

Fig. 22

Control box cover

Pipe

OK NO

B. FLOOR STANDING CONCEALED TYPE

Fig. 23

CAUTION

(1) Install the piping so that the control box cover can be

removed for servicing.

(2) In order to prevent water from leaking into the control

box, make sure that the piping is well insulated.

4. HEAT INSULATION ON THE PIPE JOINTS (INDOOR SIDE ONLY)

• After checking for gas leaks, insulate by wrapping insulation around the

two parts (large and small) of the indoor unit coupling, using the coupler heat insulation.

• After installing the coupler heat insulation, wrap both ends with vinyl

tape so that there is no gap.

• After wrapping tape around the ends of the coupler heat insulation,

secure the heat insulation pipe and the taped portion with large binders in two places, as shown in Fig. 24.

Fig. 24

Coupler heat insulation

Indoor unit

Binder (Large) Heat insulating pipe

Fig. 25

Cover this portion with heat insulating material also without fail.

No gap

Coupler heat insulation

- Continued on back -

High static pressure mode

HIGH

Normal mode

HIGH

High static pressure mode

HIGH

Normal mode

HIGH

High static pressure mode

HIGH

Normal mode

HIGH

Normal mode

HIGH

High static pressure mode

HIGH

278

VACUUM PROCESS

CAUTION

(1) Do not purge the air with refrigerants but use a vacuum

pump to vacuum the installation! There is no extra refrigerant in the outdoor unit for air purging!

(2) Use a vacuum pump for R410A exclusively. Using the

same vacuum pump for different refrigerants may damage the vacuum pump or the unit.

1. 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 15 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 to 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.

Table 6

Tightening torque

Blank cap (2-way valve)

9.52 mm (3/8 in.)

Blank cap

(3-way valve)

12.70 mm (1/2 in.)

15.88 mm (5/8 in.)

Charging port cap

Outdoor unit

Service hose with valve core

Cap

Gauge manifold

Service hose

[18000 BTU/h model]

[7000, 9000, 12000 and 14000 BTU/h models]

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)

10 to 12 N · m (100 to 120 kgf · cm)

Connecting pipe

Blank cap

Hexagon wrench

3-way valve

Charging port

Use a clean gauge manifold and charging hose for

L O

Vacuum pump

Gauge manifold

R410A exclusively.

Use a 4 mm hexagon wrench.

CAUTION

Vacuum pump

Service hose

2. ADDITIONAL CHARGE

Refrigerant suitable for a piping length of 7.5 m is charged in the outdoor unit at the factory. When the piping is longer than 7.5 m, additional charging is necessary. For the additional amount, see the table below.

Pipe length

Additional refrigerant

7000, 9000 12000 and

14000 BTU/h models

18000 BTU/h model

7.5 m

(25 ft)

None

10 m

(33 ft)

37.5 g

(1.3 oz)

50 g

(1.8 oz)

15 m

(49 ft)

112.5 g (4.0 oz)

150 g

(5.3 oz)

20 m

(66 ft)

–

250 g

(8.8 oz)

g/m

(oz/ft)

15 g/m

(0.53 oz/3.3 ft)

20 g/m

(0.71 oz/3.3 ft)

CAUTION

(1) When moving and installing the air conditioner, do not

mix gas other than the specified refrigerant (R410A) inside the refrigerant cycle.

(2) When charging the refrigerant R410A, always use an

electronic balance for refrigerant charging (to measure the refrigerant by weight).

(3) 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.

(4) Add refrigerant from the charging valve after the com-

pletion of the work.

(5) If the units are further apart than the maximum pipe

length, correct operation can not be guaranteed.

Gas

R410A

Liquid

3. GAS LEAKAGE INSPECTION

CAUTION

After connecting the piping, check the joints for gas leakage with gas leak detector.

INSTALLING DRAIN HOSE

INSTALL THE DRAIN HOSE

• Install the drain hose with downward gradient (1/50 to 2/50) and so there are no rises or traps in the hose.

• Use general hard polyvinyl chloride pipe and connect it with adhesive (polyvinyl chloride) so that there is no leakage.

• When the hose is long, install supporters.

• Do not perform air bleeding.

• Always heat insulate the indoor side of the drain hose.

A. CEILING CONCEALED TYPE

Drain

Outlet air flow

Arrange the drain hose lower than this portion

hose

Rise

1.5 to 2 m (5 to 6.5 ft)

Air bleeding

Trap

Supporter

B. FLOOR STANDING CONCEALED TYPE

Rise

(1) Install the drain hose so that the control box cover can

be removed for servicing.

(2) In order to prevent water from leaking into the control

box, make sure that the drain hose is well insulated.

(3) After the wiring is connected and installation of the pip-

ing and drain hose is complete, make a seal around the opening in the wall.

The out side diameter of drain port is 26 mm, use a suitable drain hose.

Drain hose insulation

Unit

Drain hose

NO NO

CAUTION

Unit

Drain hose insulation

0 mm

Drain hose

ELECTRICAL WIRING

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 (15/16”) of 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 (3/8”) of 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 ter-

minal screw using a screwdriver.

A. Solid wire

”)

Insulation

Strip 25 mm (15/16

Wire

Loop

Screw with special washer

Round terminal

Terminal board

Wire

B. Strand wire

”)

Strip 10 mm (3/8

Screw with special washer

Round terminal

HOW TO FIXED CONNECTION CORD AND POWER CABLE AT THE CORD CLAMP

After passing the connection cord and power cable through the insulation tube, fasten it with the cord clamp.

Insulation tube

Insulation tube Cord clamp

Use VW-1, 0.5 to 1.0 mm thick, PVC tube as the insulation tube.

1. CONNECTION DIAGRAM

[18000 BTU/h model Cooling, Heat&Cool model (Reverse cycle)]

Remote controller

Black White Red

3 2 1

6 5 4 3

2(N)

Indoor unit side terminal

Power supply

Power Line

EARTH

2(N)

EARTH

Outdoor unit side terminal

Round terminal

[7000, 9000, 12000 and 14000 BTU/h models Cooling model]

Remote controller

Red White Black

1 2 3

2(N)

Power supply

Power Line

EARTH

1(L)

2(N)

3 4 5 6

EARTH

Indoor unit side terminal

Outdoor unit side terminal

[7000, 9000, 12000 and 14000 BTU/h models Heat&Cool model (Reverse cycle)]

Remote controller

Red White Black

1 2 3

2(N)

3 4 5 6

Power supply

Power Line

EARTH

1(L)

2(N)

EARTH

Indoor unit side terminal

Outdoor unit side terminal

2. INDOOR UNIT SIDE

(1) Remove the control box cover from the control box.

Control box

(2) Cord connection.

• Clamp the connection cord with the cord clamp.

• Connect the connection cord to the terminal board.

• Clamp the remote control cord with nylon clamp.

• Connect the remote control cord to the terminal board.

[18000 BTU/h model Cooling, Heat&Cool model (Reverse cycle)] [7000, 9000, 12000 and 14000 BTU/h models Cooling model]

2(N)

3456 123

Terminal board

Connection cord

Cord clamp

Screw

Control box cover

Remove the 4 screws and remove the control box cover from the control box.

Nylon clamp

Remote control cord

[7000, 9000, 12000 and 14000 BTU/h models Heat&Cool model (Reverse cycle)]

2(N)

3456 123

Terminal board

Connection cord

Cord clamp

Connection cord

Nylon clamp

Remote control cord

CAUTION

(1) Tighten the indoor unit connection cord (to the out-

door unit) and power supply indoor and outdoor unit terminal board connections firmly with the terminal board screws. Faulty connection may cause a fire.

(2) If the indoor unit connection cord (to the outdoor unit)

and power supply are wired incorrectly, the air conditioner may be damaged.

(3) Wire the indoor unit connection cord (to the outdoor

unit) by matching the numbers of the outdoor and indoor units terminal board numbers as shown in terminal label.

(4) Ground both the indoor and outdoor units by attach-

ing a ground wire.

(5) Unit shall be grounded in compliance with the applica-

ble local and national codes.

3. Floor standing concealed/ceiling concealed select switch

(1) The DIP switches were set for use as a ceiling concealed type at the

factory.

(2) The following changes must be made to the settings if the unit is to be

used as a floor standing concealed type.

(3) Changing the settings for the electrical circuits.

DIP Switch 1 (SW1) on the printed circuit board inside the electric component box must be set as follows.

Rotary switch

DIP switch [SW1]

SW1

Ceiling concealed type

Indoor unit PC board

SW1

Floor standing

concealed type

4. OUTDOOR UNIT SIDE

(1) Remove the terminal cover of the outdoor unit, and insert the end of

the connection cord and the power cable into the terminal board.

(2) Fasten the connection cord with the cord clamp, and install the termi-

nal cover.

Insulation tube (Use VW-1, 0.5 to 1.0 mm thick,

Insulation tube

Connection cord

After passing the connection cord through the insulation tube, fasten it with the cord clamp.

[18000 BTU/h model Cooling, Heat&Cool model (Reverse cycle)]

Terminal cover

Power cable

Ground wire length 60 mm or more

Terminal board

[7000, 9000, 12000 and 14000 BTU/h models Cooling model]

Terminal block

Ground wire length 80 mm or more

Cord clamp

Power supply cord

PVC tube as the insulation tube)

Cord clamp

Insulation tube

Connection cord

Power cable

Terminal cover

Power cable

NL1

(L)2(N)

Insulation tube

Connection cord

Ground wire length 60 mm or more

NL32

(N)

Connection cord

Cord clamp

Insulation tube

Connection cord

Control box

Ground wire length 65 mm or more

Cord clamp

Insulation tube

[7000, 9000, 12000 and 14000 BTU/h models Heat & Cool model (Reverse cycle)]

NL1

(L)2(N)

Terminal block

Ground wire length 45 mm or more

Cord clamp

Power supply cord

3456

Ground wire length 65 mm or more

Control box

Insulation tube

Connection cord

CAUTION

When routing the ground wires, leave slack as shown in the illustrations.

POWER

WARNING

(1) The rated voltage of this product is 230 V A.C. 50 Hz.

(2) Before turning on the verify that the voltage is within

the 198 V to 264 V range.

(3) Always use a special branch circuit and install a spe-

cial breaker to supply power to the room air conditioner.

(4) Use a circuit breaker matched to the capacity of the

room air conditioner. (Install in accordance with standard)

(5) The circuit breaker is installed in the permanent wir-

ing. Always use a circuit that can trip all the poles of the wiring and has an isolation distance of at least 3 mm between the contacts of each pole.

(6) Perform wiring work in accordance with standards so

that the room air conditioner can be operated safely and positively.

(7) Install a leakage circuit breaker in accordance with the

related laws and regulations and electric company standards.

CAUTION

(1) The power source capacity must be the sum of the room

air conditioner current and the current of other electrical appliances. When the current contracted capacity is insufficient, change the contracted capacity.

(2) When the voltage is low and the air conditioner is diffi-

cult to start, contact the power company the voltage raised.

REMOTE CONTROLLER

SETTING

CAUTION

(1) 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.

(2) 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.

(3) 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 controller, re-

move the two screws indicated in the following figure, and then remove the front case of the remote controller.

Front case (back side)

DAY

CLOCK ADJUST

DAY OFF

ENERGY

SET BACK

DELETE SET

Screws

THERMO

SAVE

SENSOR

Connector

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.

Front case

Connector

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. (3) If the remote controller wires run through the room, use a tool to cut

away the thin area on the upper center of the front case.

(Example)

Binder

1. Red

Temperature sensor

Rear case

Remote controller wires

Rear case

2. White

3. Black

3. SETTING THE DIP SWITCHES

When using a battery (memory backup)

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.

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.

Indoor unit

(1) 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.

Indoor unit

(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.

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.

Indoor unit

(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 temperature sen-

sor 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 the THERMO SENSOR button is pressed.

TEST RUN

(1) Stop the air conditioner operation. (2) Press the master control button and the fan control button simultane-

ously 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.

Unit number (usually 0)

SUMOTUWETH FR

Ex. Self-diagnosis

(3) Press the set temperature buttons simultaneously for 5 sec-

onds or more to stop the self-diagnosis.

Error code Error contents

00 01

Communication error (indoor unit

remote controller)

Communication error (indoor unit outdoor unit)

will flash when

Error code

Error code Error contents

03 04 05 06

07 08 09

0b 0c 0d

0F 11 12 13 14

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 shortcircuited

Power source connection error

Float switch operated

Outdoor temperature sensor open

Outdoor temperature sensor short-circuited

Discharge pipe temperature sensor open

Discharge pipe temperature sensor short-circuited

Outdoor high pressure abnormal

Discharge pipe temperature abnormal

Model abnormal

Indoor fan abnormal

Outdoor signal abnormal

Outdoor EEPROM abnormal

2. OUTDOOR UNIT LEDS

When the outdoor temperature drops, the outdoor unit’s fans may switch to low speed.

ERROR : 18000 BTU/h model HEAT & COOL MODEL (REVERSE CYCLE) ONLY

The LED lamps operate as follows according to the error contents.

Error display

LED1 LED2 Error contents

0.1 sec.

OFF

Quick flash continued Quick flash continued

0.5 sec.

OFF

2 sec.

1 quick flash repeated Lighting continued

0.5 sec.

OFF

2 sec.

2 quick flash repeated Lighting continued

0.5 sec.

OFF

2 sec.

3 quick flash repeated Lighting continued

4 quick flash repeated Lighting continued Outdoor temperature

5 quick flash repeated Lighting continued 6 quick flash repeated Lighting continued Indoor unit error 7 quick flash repeated Lighting continued Discharge temperature

8 quick flash repeated Lighting continued

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.

OFF

0.1 sec.

Model abnormal or EEPROM abnormal

Power source connection error

Discharge temperature sensor error

Outdoor heat exchanger temperature sensor error

sensor error Communication signal error

abnormal High pressure abnormal

STATIC PRESSURE

CHARACTERISTIC

1. FAN PERFORMANCE AND AIR FLOW

EXTERNAL STATIC PRESSURE

7000 BTU model

Recommended range

56 83 111

(Pa)

High static pressure mode

EXTERNAL STATIC PRESSURE

200

9000 BTU model

56 83 111

(Pa)

EXTERNAL STATIC PRESSURE

200

12000 BTU model

83 111

(Pa)

EXTERNAL STATIC PRESSURE

300

14000 BTU model

83 111 139

(Pa)

EXTERNAL STATIC PRESSURE

300

High static pressure mode

Recommended range

400 500

High static pressure mode

400 500

High static pressure mode

Normal mode

300 400

AIR FLOW

Recommended range

HIGH

Normal mode

HIGH

300 400

AIR FLOW

139

High static pressure mode

Normal mode

AIR FLOW

Recommended range

HIGH

Normal mode

HIGH

AIR FLOW

HIGH

167

600

167

600

HIGH

(

/sec)

139

500

/h)

(r/sec)

139

500

/h)

(r/sec)

194

700

/h)

(r/sec)

194

700

/h)

18000 BTU model

139 194 222 250 306

(Pa)

EXTERNAL STATIC PRESSURE

Recommended range

167 278

Normal mode

HIGH

Quiet mode

HIGH

600 800

AIR FLOW

(

/sec)

278

1000 1100500 700 900

/h)

2. AIR FLOW SETTING

The air flow is set according to the DIP switch settings in the following tables.

[7000, 9000, 12000, and 14000 BTU/h models]

Fan mode

Normal mode (0 Pa 20)

High static pressure mode (20 < Pa 40)

[18000 BTU/h model]

Fan mode

Normal mode (0 Pa 70)

Quiet mode (*0 Pa 40)

* When the PC board of the indoor unit is set for the quiet mode, air flow

and cooling and heating performance will be reduced slightly. The quiet mode can only be used when the external static pressure is 40 Pa or less.

Indoor unit PC board

Dip switch (SW4)

Indoor unit PC board

CAUTION

Do not set any switches other than those specified in this sheet. The air conditioner may not operate correctly if any switches other than those specified are changed.

DIP-SW4

123

— OFF OFF

— ON OFF

DIP-SW4

123

— OFF OFF

— ON OFF

SW 1

123

SW 4

123

SPECIAL INSTALLATION

METHODS

CAUTION

(1) When setting the rotary switch and DIP switches, do

not touch any other parts on the circuit board directly with your bare hands.

(2) 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 Indoor unit No. 1 Indoor unit No. 2 Indoor unit No. 3

1 2 3

Remote controller wire

1 2 3

Remote controller

(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.

Indoor unit

Rotary Switch

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)

Remote controller wire

(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)

DIP-SW No. 1

DIP-SW No. 1 DIP-SW No. 2

1 2 3 1 2 3 1 2 3

Remote controller

1 2 3 4 5 6

DIP Switch

Indoor unit

1 2 3

Master unit

OFF

Slave unit

–

Remote controller

DIP-SW No. 2

OFF

–

ONOFF

1 2 3

Slave unit

Remote controller

1 2 3 4 5 6

DIP Switch

3. AUTO RESTART

• When the air conditioner power was temporarily turned off by a power failure etc., it restarts automatically after the power recovers. (Operated by setting before the power failure)

The auto restart function can be canceled.

(1) DIP switch setting (indoor unit)

Change the DIP switch (SW1-1) on the indoor unit circuit board from ON to OFF. The auto restart function will be canceled.

Indoor unit

123

OFF

SW1

DIP Switch

123

OFF

SW4

[DIP-SWITCH SETTING]

● Indoor unit

NO.

1 Invalidity Validity ✽ Auto restart setting

DIP-Switch 1

2 ——✽ Temperature correction

3 ——✽ setting for heating

1 ——Remote controller setting

DIP-Switch 4

2 — ✽ —

3 — ✽ —

● Remote controller

NO.

1 ✽ Dual remote controller

2 ✽ setting

DIP-Switch

ONOFF

5 Invalidity Validity ✽ Auto changeover setting

6 Invalidity✽ Validity Memory backup setting

SW state

OFF ON

Air flow setting

SW state

OFF ON

One unit

✽ Multiple unit Group control setting

Heat & Cool model

Cooling only model

Model setting

PART NO. 9364658049

Detail

✽ : Factory setting