General ABG36F, ABG36FBAG, AOG36FNAXT, ABG36U, ABG36UBAG Installation Manual

...

Refrigerant

GOOD

BAD BAD

R410A

Ceiling Suspension Type

SPLIT TYPE AIR CONDITIONER

INSTALLATION INSTRUCTION SHEET

(PART NO. 9360461094)

For authorized service personnel only.

WARNING

CAUTION

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

1 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.

2 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.]

3 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.

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.

5 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/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 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.

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.

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

1.00 mm

1.20 mm

CONNECTION 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.

Diameter

Liquid

9.52 mm (3/8 in.)

••

• Use pipe with water-resistant heat insulation.

••

36 Type 45, 54 Type

15.88 mm (5/8 in.) 19.05 mm (3/4 in.)

Gas

Pipe length

MAX.

50 m

MIN.

5 m 30 m

Maximum height (between indoor

and outdoor)

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 (mm )

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 (mm )

MAX.

2.5

MIN.

1.0

Breaker capacity (A)

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

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

2 Do not install the unit near heat source of heat, steam, or flammable gas.

3 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 level on a strong wall which is not subject to

vibration.

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

able to blow all over the room. (3) Do not install the unit where it will be exposed to direct sunlight. (4) Install the unit where connection to the outdoor unit is easy. (5) Install the unit where the drain pipe can be easily installed. (6) Take servicing, etc., into consideration and leave the spaces shown

in the figure. Also install the unit where the filter can be removed.

Ceiling

INDOOR UNIT

Ceiling

80 mm or over

10 mm or over

150 mm

or over

[FOR HALF CONCEALED INSTALLATION]

INDOOR UNIT

80 mm or over

Ceiling panel

10 mm or over

Ceiling panel

150 mm

or over

INSTALLATION PROCEDURE

REMOVE THE INTAKE GRILLE AND SIDE COVER

(1) Remove the two Air filters. (2) Remove the two Intake grilles.

(3) Remove the Side cover A (Right side) and Side cover B (Right and

(4)

Tapping screw

You can use the accessory template to help you install the indoor unit. The template helps you determine the appropriate locations for suspension bolts and pipe opening (drain pipe and connection cord).

1. LOCATION OF CEILING SUSPENSION BOLTS

PREPARING INDOOR UNIT

INSTALLATION

• For 4 Left rear drain and 5 Left drain: Remove air filters and intake

grilles at three places. (Refer to “2 INDOOR UNIT INSTALLATION”.)

Left side).

• For 5 Left drain : Remove both the Side cover A (Right and Left

side). (Refer to “2 INDOOR UNIT INSTALLATION”.)

This air conditioner can be set up to intake fresh air. For information about how to install for fresh-air intake, refer to “B FRESH-AIR INTAKE”.

Air filter

Intake grille

INDOOR UNIT

Side cover B

(Left side)

Side cover A (Right side)

Side cover B (Right side)

INDOOR UNIT INSTALLATION

Drilling position for Suspension bolt

Ceiling

Wall

Template

30 mm Suspension bolt pitch 1600 mm

INDOOR UNIT (TOP VIEW)

INDOOR UNIT

Drilling position for piping

30 mm Dimensions (Space Required for Installation)

10 mm 155 mm

300 mm

Suspension bolt should extend outward 30 to 75 mm.

[For Half-Concealed Installation]

••

• Suspension-bolt pitch should be as shown in the figure.

••

40 mm Ceiling Opening: 1580 mm 40 mm

Ceiling panel

Ceiling Opening: 640 mm

INDOOR UNIT

15 mm

Ceiling panel

Suspension bolt should extend outward 30 to 50 mm.

2. SELECT PIPING DIRECTION

Select connection piping and drain piping directions.

5 Left piping

(Drain pipe only)

4 Left rear piping

(Drain pipe only)

INDOOR UNIT (TOP VIEW)

2 Top piping

(Connection pipe only)

1 Right rear piping

Cut off the piping outlet cutting groove with a hacksaw, etc.

[FOR 4 Left rear piping, 5 Left piping]

••

• Transfer the Drain cap and Drain cap seal.

••

Drain cap seal

Drain cap

Indoor unit Drain pan

Drain cap seal

Drain cap

Push cap all the way on (as far as it will go).

3. DRILLING THE HOLES AND ATTACHING THE SUSPENSION BOLTS

(1) Drill ø25 mm holes at the suspension-bolt locations. (2) Install the bolts, then temporarily attach Special nuts A and B and a

normal M10 nut to each bolt. (The two special nuts are provided with the unit. The M10 nut must be obtained locally.) Refer to the figure.

Bolt Strength 980 to 1470 N (100 to 150 kgf)

Ceiling panel

10 to 15 mm

Special nut A (Included)

Special nut B (Included)

M10 Nut (Obtained locally)

3 Right

piping

[If using anchor bolts]

(1) Drill holes for anchor bolts at the locations at which you will set the

suspension bolts. Note that anchor bolts are M10 bolts (to be obtained locally).

(2) Install the anchor bolts, then temporarily attach special nut “B” (in-

cluded) and a locally-procured M10 nut to each of the bolts.

Anchor-Bolt Strength 980 to 1470 N (100 to 150 kgf)

Ceiling

Special nut B (Included)

M10 Nut (Obtained locally)

M10 Anchor Bolt (Obtained locally)

10 to 15 mm

4. INSTALLING THE INDOOR UNIT

(1) Lift unit so that suspension bolts pass through the suspension fittings

at the sides (four places), and slide the unit back.

Ceiling

Wall

Ceiling panel

Wall

INDOOR UNIT

(2) Fasten the indoor unit into place by tightening-up the special “B” bolts

and the M10 nuts. Make sure that unit is secure and will not shift back and forth.

[For Half-Concealed Installation]

When installing the indoor unit in a semi-concealed orientation, make sure to reinforce the insulation of the unit on all sides. Drops of water may fall from the unit if it is not thoroughly insulated.

Glass wool insulate (10 to 20 mm thick)

INDOOR UNIT

(Top view)

Wall

Ceiling panel

CAUTION

In order to check the drainage, be sure to use a level during installation of the indoor unit. If the installation site of the indoor unit is not level, water leakage may occur.

5. DRAIN PIPING

CAUTION

Install the drain pipe in accordance with the instructions in this installation instruction sheet and keep the area warm enough to prevent condensation. Problems with the piping may lead to water leaks.

••

• Install the drain pipe with downward gradient (1/50 to 1/100) and so

••

there are no rises or traps in the pipe.

••

• Use general hard polyvinyl chloride pipe (VP25) [outside diameter

••

38 mm].

••

• During installation of the drain pipe, be careful to avoid applying

••

pressure to the drain port of the indoor unit.

••

• When the pipe is long, install supporters.

••

• Do not perform air bleeding.

••

• Always heat insulate (8 mm or over thick) the indoor side of the drain

••

pipe.

Drain pipe

Arrange the drain pipe lower than this portion.

Lifted up

Wave

End in water

Supporter

(1) Install insulation for the drain pipe.

Cut the included insulation material to an appropriate size and adhere it to the pipe.

Indoor unit (drain port)

Indoor unit

(2) If “1 Right rear piping” : fasten the drain pipe with VT wire so that the

pipe slopes correctly within the indoor unit.

Indoor unit (rear view)

1.5 to 2 m

Insulation for drain pipe (To be obtained locally. Length should be at least 8 mm.)

Drain pipe insulation (accessories)

Drain pipe insulation

No gap

10 mm or over

VT wire

Drain pipe

Drain hose

STANDARD PARTS

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

INDOOR UNIT ACCESSORIES

Name and Shape

Remote control unit

Battery (penlight)

Remote control unit holder

Tapping screw (ø3 × 12)

Drain hose insulation

VT wire

Coupler heat insulator (large)

Coupler heat insulator (small)

Nylon fastener

Special nut A (large flange)

Special nut B (small flange)

Installation template

Auxiliary pipe assembly

Q’ty

Use for air conditioner operation

For remote control unit

For mounting the remote control unit

For remote control unit

holder installation

Adhesive type 70 × 230

For fixing the drain hose

L 280 mm

For indoor side pipe joint (Gas pipe)

For indoor side pipe joint

(Liquid pipe)

Large

For fixing the coupler heat

insulator

Small

For installing indoor unit

For positioning the indoor

unit

For connecting the piping

Application

OUTDOOR UNIT ACCESSORIES

Name and Shape Q’ty Application

Drain pipe

For outdoor unit drain piping work (May not be

Drain cap

Insulation (seal)

supplied, depending on the model.)

For filling in a gap at the entrance of connection

cords

OPTIONAL PARTS

The following options are available.

••

• DRAIN PUMP UNIT: UTR-DPB241 (P/N 9034087001)

••

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) 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)

300 mm

or more

••

• When there are obstacles at the back and front sides.

••

AIR

••

• When there are obstacles at the back side with the installation of

••

more than one unit.

250 mm

or more

600 mm

or more

100 mm

or more

300 mm

or more

OUTDOOR UNIT

INSTALLATION

1. OUTDOOR UNIT PROCESSING

(1) Outdoor unit to be fasten with bolts at the four places indicated by the

arrows without fail.

Bottom side

650 mm

Drain pipe mounting place

(2) Fix securely with bolts on a solid block. (Use 4 sets of commercially

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 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)

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

Drain cap mounting place

Bolt

Nut

CAUTION

Drain pipe

370 mm

4-ø 12 hole

Block

Base

CONNECTING THE PIPE

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 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 flare tool.

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

Die

Pipe

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

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.

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.)

Dimension A (mm)

Flare tool for R410A, clutch type

0 to 0.5

Dimension B (mm)

Width across flats

-0.4

9.1

13.2

16.6

19.7

24.0

of Flare nut

17 mm

22 mm

26 mm

29 mm

36 mm

2. BENDING PIPES

The pipes are shaped by your hands. 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 difficult to bend or stretch them any more. Do not bend or

stretch the pipes more than three times.

CAUTION

• For 2 Top piping and 3 Right piping connections, use the Auxiliary

pipe (Gas pipe) provided.

2 Top piping

Connection pipe (Gas)

Indoor unit (rear)

1 To prevent breaking of the pipe, avoid sharp bends.

Bend the pipe with a radius of curvature of 150 mm or over.

2 If the pipe is bent repeatedly at the same place, it will

break.

3. CONNECTION PIPES

Connection pipe (Gas)

Auxiliary pipe (Gas pipe)

3 Right piping

(5) When the flare nut is tightened properly by your hand, use a torque

wrench to finally tighten it.

Indoor unit

(1) Detach the caps and plugs from the pipes.

CAUTION

Body side

Holding spanner

1 Be sure to apply the pipe against the port on the in-

door 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.

Torque wrench

2 Do not remove the flare nut from the indoor unit pipe

until immediately before connecting the connection pipe.

CAUTION

(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.

(3) Remove the filter guide.

Indoor unit

(4) Attach the connection pipe.

Indoor unit

Filter guide

Connection pipe (Gas)

Connection pipe (Liquid)

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 Tightening torque

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.

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)

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)

Flare nut

Connection pipe (Liquid)

3-way valve (Gas)

Flare nut

Connection pipe (Gas)

If the space is larger than that is stated, the condition

will be the same as that there are no obstacles.

- Continued on back -

4. VACUUM

TN123

JM1

JM2

JM3

SWING SWING TIMER

OPERATION

MANUAL

AUTO

1 2 3

R S

(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

cap

Service hose with valve core

9.52 mm (3/8 in.)

12.70 mm (1/2 in.)

15.88 mm (5/8 in.)

19.05 mm (3/4 in.)

Charging port cap

Connecting pipe

Outdoor unit

Cap

Gauge manifold

Service hose

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 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.

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)

Blank cap

Hexagon wrench

3-way valve

Charging port

Vacuum pump

CAUTION

Use a 4 mm hexagon wrench.

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.

Pipe length

Model type

36,000 BTU/h class

(cooling model)

(Reverse cycle model)

45,000 BTU/h class

(cooling model)

(Reverse cycle model)

54,000 BTU/h class

(cooling model)

(Reverse cycle model)

20 m

(66 ft)

None

30 m

(99 ft)

300 g

(10.6 oz)

400 g

(14.1 oz)

40 m

(132 ft)

600 g

(21.2 oz)

800 g

(28.2 oz)

50 m

(164 ft)

900 g

(31.8 oz)

1200 g

(42.3 oz)

g/m

(oz/ft)

30 g/m

(1.06 oz/3.3 ft)

40 g/m

(1.41 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

completion of the work.

5 The maximum length of piping is 50 m. If the units are

further apart than this, correct operation can not be guaranteed.

Gas

R410A

Liquid

6. GAS LEAKAGE INSPECTION

CAUTION

1 After connecting the piping, check the all joints for gas

leakage with gas leak detector.

2 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)

After checking for gas leaks, insulate by wrapping insulation around the two parts (Gas and Liquid) 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. Secure both ends of the heat insulation material using nylon fasteners. And finally fix connection pipe (Liquid) to connection pipe (Gas) by rolling vinyl tape over coupler heat insulation (Gas) and coupler heat insulation (Liquid).

Coupler heat insulation (Large)

Indoor unit

Coupler heat insulation (Small)

Indoor unit

• When using an auxiliary pipe, make sure that the fastener used is insulated in the same way.

Connection pipe (Gas)

Connection pipe (Liquid)

Nylon fastener (Large)

No gap

Coupler heat insulation

Nylon fastener (Small)

Connection pipe (Gas)

Connection pipe (Liquid)

Vinyl tape

CAUTION

There should be no gaps between the insulation and the product.

POWER

WARNING

1 The rated voltage of this product is 400 V 3ø 50 Hz.

2 Before turning on, verify that the voltage is within the

342 V to 457 V range.

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

cial receptacle to supply power to the air conditioner.

4 Use a special branch circuit breaker and receptacle

matched to the capacity of the air conditioner. (Install in accordance with standard.)

5 Perform wiring work in accordance with standards

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

6 Install a leakage special branch 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 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

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

3 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.

ELECTRICAL WIRING

WARNING

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. Imperfect installation may cause a fire.

4 Always fasten the outside covering of the connection

cord with the cord clamp. (If the insulator is chafed, electric leakage may occur.)

5 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.

Strip 25 mm

Wire

A. Solid wire

Loop

Insulation

Screw with special washer

Round terminal

Terminal board

Wire

Terminal block

B. Strand wire

Strip 10 mm

Screw with special washer

Round terminal

1. CONNECTION DIAGRAMS

Power supply

Power line

Indoor unit

side terminal

Outdoor unit side terminal

2. CONNECTION CORD PREPARATION

30 mm

For earth

Power supply cord

40 mm or more

or connection cord

3. INDOOR UNIT

CAUTION

Use care not to mistake the power supply cord and connection wires when installing.

(1) Remove the two tapping screws and pull the control box downward.

Indoor unit

Control box

Tapping screw

(2) Remove the Cover A and install the Connection cord. (3) Reattach Cover A. Then fasten the control box back into its original

position using the two tapping screws.

Control box

Cover A

(4) After wiring is complete, clamp the Connection cord with the Cord

clamp.

(5) Attach the connection cord and cable clips. Make sure that they are

positioned so that they will not interfere with opening and closing of the intake grille or with removal and installation of the air filters.

Control box

Connection cord

Terminal board

Earth screw

Cord clamp

Connection cord

To outdoor unit

Connection cord

Cable clip

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.

Hook (3 places)

Direction of the service cover removal

Service cover

(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

Cord clamp

Power supply cord

EARTH

Indoor unit

Connection cord (indoor unit and outdoor unit connection cord)

Connection cordPower supply 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

Valve (Gas)

(6) Put the service cover and valve cover back after completion of the

work.

REMOTE CONTROL UNIT

• Remote control unit settings (1) Press the START/STOP button and display only the clock.

FINISHING

TEST RUNNING

AN ERROR DISPLAY

INSTALLATION

CAUTION

1 Check that the indoor unit correctly receives the

signal from the remote control unit, then install the remote control unit holder.

2 Select the remote control unit holder selection site by

paying careful attention to the following:

(2) Press the MASTER CONTROL button continuously for more than five

seconds to display the current signal code.

(1) Install the filter guide. (2) Install the intake grilles. (3) Install side covers A and B (if the unit is installed in a half-concealed

orientation, only install side cover A).

(4) Install the air filters.

Avoid places in direct sunlight. Select a place that will not be affected by the heat from a stove, etc.

1. REMOTE CONTROL UNIT HOLDER INSTALLATION

••

• Install the remote control unit holder to a wall or pillar with the tapping

••

screws.

Remote control unit holder

Tapping screws (small)

Remote Control Unit holder fixing

2 Push

Remote control unit

Remote Control Unit mounting

1 Set

(3) Change the signal code with the

(4) Press the MASTER CONTROL button again to return to the clock

display and change the signal code.

button ( ).

Explain the following to the customer in accordance with the operating manual:

(1) Starting and stopping method, operation switching, temperature

adjustment, timer, air flow adjustment, and other remote control unit

operations. (2) Air filter removal and cleaning. (3) Give the operating manual and installation instruction sheet to the

customer.

CUSTOMER GUIDANCE

2. SWITCHING REMOTE CONTROL UNIT SIGNAL CODE

Confirm the setting of the remote control unit signal code and the printed circuit board setting. If these are not confirmed, the remote control unit cannot be used to operate for the air conditioner.

Jumper wire

JM2

Connect

Disconnect

JM3

Connect

Disconnect

Connect

Disconnect

Remote control unit

signal code

A (Primary setting)

Indoor unit Printed circuit board

••

• Perform test operation and check items 1 and 2 below.

••

• For the operation method, refer to the operating manual.

••

• The outdoor unit may not run, depending on the room temperature.

••

In this case, the ‘TEST RUN’ signal is received during air conditioner operation (use a metallic object to short the two metal contacts under the battery compartment lid and send the ‘TEST RUN’ signal from the remote control unit).

Short the two metal contacts under the battery compartment lid.

••

• To end test operation, press the remote control unit START/STOP

••

button. (When the air conditioner is run by pressing the remote control unit TEST RUN button, the OPERATION and TIMER lamps will simultaneously flash slowly.)

1. INDOOR UNIT

(1) Is operation of each button on the remote control unit normal?

(2) Does each lamp light normally?

(3) Do not air flow direction flap and louvers 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?

1. INDOOR UNIT

Operation can be checked by lighting and flashing of the display section OPERATION, TIMER and VERTICAL SWING lamps. Perform judgment in accordance with the following.

VERTICAL SWING lamp (Orange)

TIMER lamp (Green)

OPERATION lamp (Red)

• Test running

When the air conditioner is run by pressing the remote control unit test run button, the OPERATION, TIMER and VERTICAL SWING lamps flash slowly at the same time.

• Error

The OPERATION, TIMER and VERTICAL SWING lamps operate as follows according to the error contents.

OPERATION

lamp (RED)

(2 times)

(3 times)

(4 times)

(5 times)

(6 times)

TIMER lamp

(GREEN)

(2 times)

(3 times)

(4 times)

(5 times)

(6 times)

(7 times)

SWING lamp

(ORANGE)

Error contents

Indoor EEPROM abnormal

Outdoor EEPROM abnormal

Indoor room temperature sensor open

Indoor room temperature sensor shortcircuited

Indoor heat exchanger temperature sensor open

Indoor heat exchanger temperature sensor shortcircuited

Float switch operated

Indoor signal abnormal

Outdoor signal abnormal

Indoor fan abnormal

Outdoor power source connection abnormal

Outdoor heat exchanger temperature sensor open

Outdoor heat exchanger temperature sensor shortcircuited

Outdoor temperature sensor open

Outdoor temperature sensor shortcircuited

Outdoor discharge pipe temperature sensor or compressor temperature sensor open

Outdoor discharge pipe temperature sensor or compressor temperature sensor shortcircuited

Outdoor high pressure abnormal

Outdoor discharge pipe temperature or compressor temperature sensor 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

flash

1 flash

2 flash

3 flash

4 flash

5 flash

6 flash

7 flash

8 flash

9 flash

10 flash

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.

LED2

flash

Lighting

Error contents

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 Dislighting

LED layout

LED2 LED1

(1) Open up the knockout hole for the fresh-air intake, as shown in the

figure. (If using half-concealed installation, open up the top knockout hole instead.)

For half concealed installation

FRESH-AIR INTAKE

Indoor unit

CAUTION

1 When removing the cabinet (iron plate), be careful not

to damage the indoor unit internal parts and surrounding area (outer case).

2 When processing the cabinet (iron plate), be careful

not to injure yourself with burrs, etc.

(2) Fasten the round flange (optional) to the fresh-air intake, as shown in

the figure. (If using half-concealed installation, attach to the top.)

Round duct (option parts)

[After completing “2 INDOOR UNIT INSTALLATION”...]

(3) Connect the duct to the round flange.

(4) Seal with a band and vinyl tape, etc. so that air does not leak from the

connection.

Duct

: 0.1s ON/0.1s OFF (flash) : OFF

: 0.5s ON/0.5s OFF (flash)

PART NO. 9360461094