General ABG18FB, ABG18FBBJ, AOG18FNBK, ABG18UB, ABG18UBBJ Installation Manual

...

Refrigerant

R410A

Floor Console/Under Ceiling Dual Type

INSTALLATION INSTRUCTION SHEET

(PART NO. 9373067016)

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 value 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.),

1.0 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 5/8

Outer diameter

(mm)

6.35

9.52

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

Cover plate (left)

Cover plate (right)

Tapping screw (ø4 × 10)

Installation template

Bracket (left)

Bracket (right)

Anchor bolt (M12)

Spring washer

Special nut

Wall bracket

Tapping screw (ø4 × 20)

Coupler heat insulator (large)

Coupler heat insulator (small)

Nylon fastener

Q’ty

For positioning the indoor unit

For under ceiling type

For suspending the indoor unit from ceiling

For suspending the indoor unit on the wall.

For fixing the wall bracket.

For indoor side pipe joint (Large pipe)

For indoor side pipe joint (Small pipe)

For fixing the drain hose

Application

Name and Shape

Drain hose

Insulation (drain hose)

VT wire

Remote control unit

Battery (penlight)

Remote control unit holder

Tapping screw (ø3 × 12)

Q’ty

Application

Adhesive type 70 × 230

For fixing the drain hose L 280 mm

Use for air conditioner operation

For remote control unit

Use as remote control unit holder

For remote control unit holder installation

OUTDOOR UNIT ACCESSORIES

Name and Shape

Drain pipe

Drain cap

Q’ty

Application

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

OPTIONAL PARTS FOR INDOOR UNIT

Name and Shape Part No. Application

Joint pipe-A

9302812021

For indoor side pipe joint

INSTALLATION PROCEDURE

Install the room air conditioner as follows:

1. REMOVE THE INTAKE GRILLE

Open the intake grille and remove the three screws (Fig. 3).

Fig. 3

Tapping screw

Remark: The main unit can be wired before the indoor unit is in-

A. FLOOR CONSOLE TYPE

1. DRILLING FOR PIPING

Select piping and drain directions (Fig. 4). The piping and drain can be made in three directions as shown below.

Fig. 4

The drain hose can be connected to either the left or right side (Fig. 5).

Fig. 5

When the directions are selected, drill a 10 cm (4”) dia. hole on the wall so that the hole is tilted downward toward the outdoor for smooth water flow. When the pipe is led out from the rear, make a hole in Fig. 6, at the position shown.

Fig. 6

PREPARING INDOOR UNIT

INSTALLATION

Machine screw

Intake grille

stalled. Select the most appropriate installation order.

Tapping screw

INDOOR UNIT INSTALLATION

Drain hose (Left side)

Wall

100 mm (4”)

Indoor side

6 mm (1/4”)

Outdoor side

Drain hose (Right side)

When installing set to wall install the accessory wall bracket at the position shown in Fig. 7, and mount the set to it.

Fig. 7

65.5 cm (26”) 53 cm (21”)

4.5 cm (1-3/4”)

99 cm (39”)

50 cm (20”)

6.5 cm (2-1/2”)

10 cm (4”) hole

5 cm (2”) hole

12.5 cm (5”) 10 cm (4”)

24.5 cm (

9-5/8”

)

Wall bracket

Side of set

6.5 cm (2-1/2”)

2. INSTALLING THE DRAIN HOSE

Select whether the drain hose will be connected to the left or right side (Fig. 5). Insert the drain hose into the drain pan, then secure the drain hose with a nylon fastener (Fig. 8).

Fig. 8

Drain pan

Nylon fastener

Drain hose

Wrap the insulation (drain hose) around the drain hose connection (Fig. 9).

Fig. 9

Drain hose

Be sure to arrange the drain hose so that it is leveled lower than the drain hose connecting port of the indoor unit.

Fig. 10

Arrange the drain hose lower than this portion.

Do not install the unit so that the drain hose side is too high. Height A should be less than 5 mm (Fig. 11).

Fig. 11

Drain pan

Insulation (Drain hose)

Drain hose

CAUTION

Drain hose

B. UNDER CEILING TYPE

Using the installation template, drill holes for piping and anchor bolts (for holes) (Fig. 12).

Fig. 12

900 mm (35-7/16”)

Drilling position for anchor bolt

200 mm (7-7/8” )

1. DRILLING FOR PIPING

Select piping and drain directions (Fig. 13).

Fig. 13

Install the drain hose at the rear; it should not be installed on the top or right side.

When the directions are selected, drill 80 mm (3-1/8”) and 50 mm (2”) or 150 mm (6”) dia. hole on the wall so that the hole is tilted downward toward the outdoor for smooth water flow.

Fig. 14

Indoor side Outdoor side

2. DRILLING HOLES FOR ANCHOR BOLTS AND INSTALLING THE ANCHOR BOLTS

With a concrete drill, drill four 12.7 mm (1/2”) dia. holes (Fig. 15).

Fig. 15

Insert the anchor bolts into the drilled holes, and drive the pins completely into the anchor bolts with a hammer (Fig. 16).

Fig. 16

Installation template

Drilling position for piping

Wall

ø 12.7 mm (1/2”)

To p

CAUTION

Rear (Install the drain hose in this direction.)

Right

6 mm (1/4”)

60 to 70 mm

Ceiling

Wall

(2-3/8” to 2-3/4”)

3. INSTALLING BRACKETS

Install the brackets with nuts, washers and spring washers (Fig. 17).

Fig. 17

Bracket (Left)

Spring washer

Special nut

Bracket

Bracket (Right)

4. INSTALLING INDOOR UNIT

Reset the hex bolts as shown in Fig. 18.

Fig. 18

Hex bolt

Indoor unit

Apply the indoor unit to the brackets (Fig. 19).

8 to 13 mm (5/16” to 1/2”)

Fig. 19

Bolt

Indoor unit

Now, securely tighten the hex bolts in both sides.

Bracket

5. INSTALLING THE DRAIN HOSE

Select whether the drain hose will be connected to the left or right side (Fig. 5). Insert the drain hose into the drain pan, then secure the drain hose with a nylon fastener (Fig. 8). Wrap the insulation (drain hose) around the drain hose connection (Fig. 9). Be sure to arrange the drain hose so that it is leveled lower than the drain hose connecting port of the indoor unit (Fig. 20).

Fig. 20

Arrange the drain hose lower than this portion.

When drain hose is arranged backward. Secure the drain hose with the VT wire (Fig. 21).

Fig. 21

VT wire hole

Pass the drain hose through here.

Remove the hole cover.

Drain hose

OK NO

Piping hole

Base (Bottom)

Intake grille

Cut the grille

Drain hose

VT wire

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.

Decide the mounting position with the customer as follows:

1. 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.

2. 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

30 cm or over

Air

60 cm or over

30 cm or over

Indoor unit

OUTDOOR UNIT INSTALLATION

1. OUTDOOR UNIT PROCESSING

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. 22) (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. 22

Bottom

Drain cap

Drain pipe mounting hole

Air flow

603 mm

Bottom plate

343 mm

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) Never use piping which has been used for previous

installations. Only use parts which are delivered with the unit.

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

gas through them.

CAUTION

The maximum lengths of this product are shown in table 3. If the units are further apart than this, correct operation can not be guaranteed.

1. LIMITATION OF REFRIGERANT PIPING LENGTH

Table 3

Max length (L)

Max height difference (H)

Fig. 24

Outdoor unit

20 m (66 ft)

8 m (20 ft)

Indoor unit

2. FLARING PROCESSING

(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. 25

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

Die

Pipe

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

set or procured at the site) to the wall hole pipe. (3) Connect the outdoor unit and indoor unit piping. (4) 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. 27

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

Table 4 Pipe outside diameter

Pipe outside

diameter

6.35 mm (1/4 in.)

9.52 mm (3/8 in.)

15.88 mm (5/8 in.)

Flare tool for

R410A, clutch type

0 to 0.5

0 to 0.5 0 to 0.5

A (mm)

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

3. 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.

Flare nut

6.35 mm (1/4 in.) dia.

9.52 mm (3/8 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)

63 to 77 N · m (630 to 770 kgf · cm)

CAUTION

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

5. HEAT INSULATION ON THE PIPE JOINTS

4. CONNECTION PIPES

(1) Centering the pipe against port on the indoor unit, turn the flare nut

with your hand (Fig. 26). Be sure that the small pipe is completely installed before connecting the large the pipe.

Fig. 26

Indoor unit side

(INDOOR SIDE ONLY)

Put coupler heat insulator on the joints (indoor side only) (Fig. 28).

Fig. 28

No gap

Indoor unit

Fig. 1

• Floor console

30 cm (12”) or more 30 cm (12”) or more

• Under ceiling

15 cm (6”) or more 30 cm (12”) or more

Left

Ceiling

Indoor unit

Ceiling

Right

2 cm (3/4”) or more

Outdoor unit

Indoor unit

CONNECTION PIPE REQUIREMENT

Table 2

MODEL

Diameter

Maximum length

Maximum height (between indoor and outdoor)

• Use pipe with water-resistant heat insulation.

18,000 BTU class 24,000 BTU class

Small Large

6.35 mm (1/4 in.) 9.52 mm (3/8 in.)

15.88 mm (5/8 in.) 15.88 mm (5/8 in.)

20 m (66 ft) 20 m (66 ft)

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

Outdoor unit

Drain pipe

2. OUTDOOR UNIT CONNECTION CORD AND PIPE CONNECTION PREPARATIONS

Remove outdoor unit terminal cover.

Fig. 23

* After removing the screws,

remove terminal cover.

Terminal cover

Coupler heat

Optional parts

insulator (large)

CAUTION

Large pipe Small pipe

Coupler heat insulator (small)

Be sure to overlap the insulation

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.

No gap

Coupler heat insulation

- Continued on back -

VACUUMING AND

ADDITIONAL CHARGE

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)

Blank cap (3-way valve)

Charging port cap

Fig. 29

Outdoor unit

Service hose with valve core

Cap

20 to 25 N · m (200 to 250 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

3-way valve

Charging port

Use a clean gauge manifold and charging hose for R410A exclusively.

Gauge manifold

Hexagon wrench

Use a 4 mm hexagon wrench.

CAUTION

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.

Table 7

7.5 m

10 m

15 m

Additional refrigerant

Cooling

model

Heat &

Cool

model

(Reverse

cycle)

Pipe length

18,000 BTU/h

class

24,000 BTU/h

class

18,000 BTU/h

class

24,000 BTU/h

class

(25 ft)

None

(33 ft)

50 g

(1.8 oz)

50 g

(1.8 oz)

100 g

(3.5 oz)

(5.3 oz)

(10.6 oz)

(49 ft)

150 g

300 g

20 m

(66 ft)

250 g

(8.9 oz)

250 g

(8.9 oz)

500 g

(17.7 oz)

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

Gas

the composition of the gas and liquid phases, and always charge from the liquid phase side whose composition is stable.

Liquid

(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 LEAKAGE INSPECTION

CAUTION

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

g/m

(oz/ft)

20 g/m

(0.71 oz/3.3 ft)

20 g/m

(0.71 oz/3.3 ft)

40 g/m

(1.41 oz/3.3 ft)

R410A

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.

Fig. 30

A. Solid wire

Loop

Insulation

Strip 25 mm (15/16”)

Screw with special washer

Round terminal

Wire

Terminal board

Wire

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.

Fig. 31

Insulation tube

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

B. Strand wire

Strip 10 mm (3/8”)

Screw with special washer

Round terminal

Insulation tube Cord clamp

Round terminal

ELECTRICAL REQUIREMENT

• Electric wire size and fuse capacity:

Table 8

MODEL

Power supply cord (mm

Connection cord (mm2)

Fuse capacity (A)

• Install the disconnect device with a contact gap of at least 3 mm nearby the units. (Both indoor unit and outdoor unit)

• Always make the air conditioner power supply a special branch circuit and provide a special breaker.

• Always use H07RN-F or equivalent as the power supply cord and the connection cord.

ELECTRICAL WIRING

)

18,000 BTU class 24,000 BTU class

MAX.

MIN.

MAX.

MIN.

3.5 4.0

2.5 3.5

2.5 2.5

1.5 1.5 20 30

CAUTION

(1) Match the terminal block numbers and connection cord

colors with those of the outdoor unit. Erroneous wiring may cause burning of the electric parts.

(2) Connect the connection cords firmly to the terminal

block. Imperfect installation may cause a fire.

(3) Always fasten the outside covering of the connection

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

(4) Always connect the ground wire.

1. INDOOR UNIT SIDE

(1) Remove the electric component box.

Fig. 32

Electric component box

Fig. 33

Electric component box

Remove the four tapping screws.

Do not remove the screws. If the stays are removed, the electric component box will fall.

CAUTION

(2) Pull out the electric component box.

Fig. 34

Electric component box

(3) Remove the electric component box cover.

Fig. 35

Base

Electric component box cover

Remove the three tapping screws.

CAUTION

Be careful not to pinch the lead wires between the electric component box and base.

(4) Wiring

[Heat & Cool model (Reverse cycle)]

1 Remove the cord clamp. 2 Process the end of the connection cords to the dimensions shown in

Fig. 36.

3 Connect the end of the connection cord fully into the terminal block.

Fig. 36

Terminal block

Connection cord

Cord clamp

4 Fasten the connection cord with a cord clamp. 5 Fasten the end of the connection cord with the screw.

[Cooling model]

1 Remove the cord clamp. 2 Process the end of the connection cords to the dimensions shown in

Fig. 37.

3 Connect the end of the connection cord fully into the terminal block.

Fig. 37

Terminal block

Connection cord

Cord clamp

4 Fasten the connection cord with a cord clamp. 5 Fasten the end of the connection cord with the screw.

(5) Floor console/Under ceiling select switch

1 The electrical circuits for this were set for use as a ceiling type at the

factory.

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

used as a floor type.

3 Changing the settings for the electrical circuits.

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

Fig. 38

SW1

Printed circuit board

SW1 SW1

Under ceiling type Floor console type

Microcomputer

2. OUTDOOR UNIT SIDE

Fig. 39

Heat & Cool model (Reverse cycle)

NL1

(L)2(N)

NL1

(L)2(N)

3456

Control box

Cord clamp

Insulation tube

Connection cord

Control box

Cord clamp

Insulation tube

Connection cord

Terminal board

Power cord

Cooling model

Terminal board

Power cord

Fig. 40

Heat & Cool model

(Reverse cycle)

Connection cord

Green/Yellow

(N)

(L)

Indoor unit side terminal

Power supply

(N)

(L)

Outdoor unit side terminal

Cooling model

Connection cord

Green/Yellow

2(N)

1(L)

Indoor unit side terminal

Power supply Outdoor unit

(N)

1(L)

side terminal

3. INSTALL THE TERMINAL COVER

Fig. 41

Terminal cover

Vacuum pump

Service hose

POWER

WARNING

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

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

the 198V to 264V range.

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

cial receptacle to supply power to the room air conditioner.

(4) Use a circuit breaker and receptacle matched to the

capacity of the room air conditioner.

(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.

• 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).

TEST RUNNING

Fig. 42

Short the two metal contacts under the battery compartment lid.

OPERATION lamp (Red)

TIMER lamp (Green)

SWING lamp (Orange)

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

• Test running

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

• Error

The OPERATION, TIMER and SWING lamps operate as follows (Table 9) according to the error contents.

Table 9

(RED)

2 times

3 times 3 times 6 times

Error display

TIMER SWING

(GREEN)

(ORANGE)

—

Error contents

Indoor unit circuit board error Indoor unit room temperature sensor

opened Indoor unit room temperature sensor

short circuited Indoor unit piping sensor opened Indoor unit piping sensor short circuited

Indoor unit fan error

: Fast flashing : Slow flashing — : Off

OPERATION

CHECK ITEMS

(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 louvers operate normally? (4) Is the drain normal? (5) Is there any abnormal noise and vibration during operation?

(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?

• Do not operate the air conditioner in the test running state for a long time.

• For the operation method, refer to the operating manual and perform operation check.

MOUNT THE COVER PLATE

AND THE INTAKE GRILLE

1. MOUNT THE COVER PLATE (RIGHT)

(1) Cut a pipe exit hole in the right plate. This is only when the pipe exits

from the right side. (This operation is not required when the protrusion is on the top or rear.)

Fig. 43

Cover plate (Right)

(2) Join the cover plates (right) and mount with screws (Fig. 44).

Fig. 44

2. MOUNT THE COVER PLATE (LEFT)

(1) Join the cover plates (left) and mount with screws.

Fig. 45

Cover plate (Left)

3. MOUNT THE INTAKE GRILLE

(1) Cut the right side of the intake grille. This is only when the pipe exits

from the right side (Fig. 46).

Fig. 46

(2) Insert the hinges on the bottom of the intake grille into the holes in the

base assembly. Then mount the arms to the three areas on the top of the intake grille (Fig. 47).

Fig. 47

REMOTE CONTROL UNIT

INSTALLATION

CAUTION

(1) Check that the indoor unit correctly receives the sig-

nal 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: 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 with a distance of 7 m between the re-

mote control unit and the photocell as the criteria. However, when installing the remote control unit, check that it operates positively.

• Install the remote control unit holder to a wall, pillar, etc. with the tap-

ping screw (Fig. 48).

Fig. 48

Remote Control Unit holder fixing

Remote control unit holder

Tapping screw (small)

1 Set

2 Push

Remote control unit

2. SWITCHING REMOTE CONTROL UNIT SIGNAL CODES

• Air conditioner settings

Fig. 49

Indoor unit Printed circuit board

Remote Control Unit mounting

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

Fig. 50

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

seconds to display the current signal code.

Fig. 51

(3) Change the signal code with the button ( ).

Fig. 52

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

display and change the 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.

Table 10

Jumper wire

JM2

Connect

Disconnect

JM3

Connect

Disconnect

Connect

Disconnect

Remote control unit

signal code

A (Primary setting)

JM1 (A)

JM2 (R1)

JM3 (R2)

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

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

justment, timer, air flow switching, and other remote control unit op-

erations. (2) Air filter removal and cleaning, and how to use the air louvers. (3) Give the operating and installation manuals to the customer. (4) If the signal code is changed, explain to the customer how it changed

(the system returns to signal code A when the batteries in the remote

control unit are replaced).

CUSTOMER GUIDANCE

PART NO. 9373067016